feat: better server docs

Replaced embedded youtube with gifs

Replaced embedded videos with GIFs

Workflow img

Workflow img

Updated youtube links with thumbnails

Updated text

.cargo/config.toml

@@ -0,0 +1,2 @@
+[build]
+rustflags = ["--cfg", "tokio_unstable"]

.github/FUNDING.yml

@@ -0,0 +1,13 @@
+# These are supported funding model platforms
+
+github: [technobaboo]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/workflows/build.yml

@@ -0,0 +1,46 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - '*'
+
+jobs:
+  build_and_package:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Install runtime dependencies
+        run: sudo apt install -y --no-install-recommends libxkbcommon-dev libstdc++6 libopenxr-dev libx11-dev libxfixes-dev libgl1-mesa-dev libegl1-mesa-dev libgbm-dev libfontconfig-dev libjsoncpp-dev  libxcb1-dev libglx-dev libxcb-glx0-dev libdrm-dev libwayland-dev libfreetype-dev libpng-dev
+
+      - name: Install build dependencies
+        run: sudo apt install -y --no-install-recommends cmake ninja-build
+
+      - name: Set up Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+
+      - name: Build server
+        run: cargo build --release
+
+
+      - name: Install appimagetool
+        run: |
+            wget https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-$(uname -m).AppImage -O /usr/local/bin/appimagetool; \
+            chmod +x /usr/local/bin/appimagetool; \
+            sed -i 's|AI\x02|\x00\x00\x00|' /usr/local/bin/appimagetool
+      - name: Install cargo-appimage
+        run: cargo install cargo-appimage
+
+      - name: Generate AppImage
+        run: cargo appimage
+
+      - name: Upload AppImage
+        uses: actions/upload-artifact@v2
+        with:
+          name: appimage
+          path: '*.AppImage'

.gitignore

@@ -2,11 +2,15 @@
 # will have compiled files and executables
 /target/
 
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
-
 # These are backup files generated by rustfmt
 **/*.rs.bk
 
 .vscode/
+
+# Ignore build results from Nix
+*result*
+
+/libs/
+*.AppImage
+*.blend1
+anchors.txt

.lapce/run.toml

@@ -0,0 +1,29 @@
+# The run config is used for both run mode and debug mode
+
+[[configs]]
+# the name of this task
+name = "task"
+
+# the type of the debugger. If not set, it can't be debugged but can still be run
+# type = "lldb"
+
+# the program to run
+program = "./target/debug/stardust-xr-server"
+
+# the program arguments, e.g. args = ["arg1", "arg2"], optional
+# args = []
+
+# current working directory, optional
+cwd = "${workspace}"
+
+# enviroment variables, optional
+# [configs.env]
+# VAR1 = "VAL1"
+# VAR2 = "VAL2"
+
+# task to run before the run/debug session is started, optional
+# [configs.prelaunch]
+# program = "cargo"
+# args = [
+#   "build",
+# ]

Cargo.toml

@@ -1,51 +1,119 @@
 [package]
-edition = "2018"
+edition = "2021"
+rust-version = "1.75"
 name = "stardust-xr-server"
-version = "0.10.1"
+version = "0.45.0"
 authors = ["Nova King <technobaboo@proton.me>"]
 description = "Stardust XR reference display server"
 license = "GPLv2"
 repository = "https://github.com/StardustXR/stardust-xr-server/"
 homepage = "https://stardustxr.org"
 
-[dependencies]
-anyhow = "1.0.57"
-clap = { version = "4.0.8", features = ["derive"] }
-ctrlc = "3.2.2"
-dashmap = "5.3.4"
-flatbuffers = "2.1.2"
-flexbuffers = "2.0.0"
-glam = {version = "0.21.3", features = ["mint"]}
-lazy_static = "1.4.0"
-mint = "0.5.9"
-nanoid = "0.4.0"
-once_cell = "1.12.0"
-parking_lot = "0.12.1"
-portable-atomic = {version = "0.3.0", features = ["float", "std"]}
-rccell = "0.1.3"
-rustc-hash = "1.1.0"
-slab = "0.4.6"
-tokio = { version = "1", features = ["full"] }
-thiserror = "1.0.31"
-send_wrapper = "0.6.0"
-prisma = "0.1.1"
-slog = "2.7.0"
-slog-stdlog = "4.1.1"
-xkbcommon = { version = "0.5.0", default-features = false }
-stardust-xr = "0.5.2"
-wayland-backend = "=0.1.0-beta.9"
-wayland-scanner = "=0.30.0-beta.9"
-directories = "4.0.1"
-serde = { version = "1.0.145", features = ["derive"] }
+[workspace]
+members = ["codegen"]
 
-[dependencies.stereokit]
-default-features = false
-features = ["linux-egl"]
-version = "0.5.0"
+[workspace.dependencies.stardust-xr]
+git = "https://github.com/StardustXR/core.git"
+
+[[bin]]
+name = "stardust-xr-server"
+path = "src/main.rs"
+
+[features]
+default = ["wayland"]
+wayland = ["dep:smithay", "dep:wayland-scanner", "dep:wayland-backend"]
+profile_tokio = ["dep:console-subscriber", "tokio/tracing"]
+profile_app = ["dep:tracing-tracy"]
+local_deps = ["stereokit-rust/force-local-deps"]
+
+[package.metadata.appimage]
+auto_link = true
+auto_link_exclude_list = [
+	"libc*",
+	"libdl*",
+	"libpthread*",
+	"ld-linux*",
+	"libGL*",
+	"libEGL*",
+]
+
+[profile.dev.package."*"]
+opt-level = 3
+debug = true
+strip = "none"
+debug-assertions = true
+overflow-checks = true
+
+[profile.release]
+opt-level = 3
+debug = "line-tables-only"
+strip = "none"
+debug-assertions = true
+overflow-checks = false
+
+[dependencies]
+# small utility thingys
+once_cell = "1.19.0"
+nanoid = "0.4.0"
+lazy_static = "1.5.0"
+rand = "0.8.5"
+rustc-hash = "2.0.0"
+portable-atomic = { version = "1.7.0", features = ["float", "std"] }
+send_wrapper = "0.6.0"
+slotmap = "1.0.7"
+global_counter = "=0.2.2"
+parking_lot = "0.12.3"
+
+# rust errors/logging
+color-eyre = { version = "0.6.3", default-features = false }
+clap = { version = "4.5.13", features = ["derive"] }
+console-subscriber = { version = "0.4.0", optional = true }
+tracing = "0.1.40"
+tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
+tracing-tracy = { version = "0.11.1", optional = true }
+
+# (de)serialization
+serde = { version = "1.0.205", features = ["derive"] }
+serde_repr = "0.1.19"
+toml = "0.8.19"
+
+# mathy stuffs
+glam = { version = "0.29.0", features = ["mint", "serde"] }
+mint = "0.5.9"
+tokio = { version = "1.39.2", features = ["rt-multi-thread", "signal", "time"] }
+prisma = "0.1.1"
+
+# linux stuffs
+libc = "0.2.155"
+nix = "0.29.0"
+input-event-codes = "6.2.0"
+zbus = { version = "4.4.0", default-features = false, features = ["tokio"] }
+directories = "5.0.1"
+xkbcommon-rs = "0.1.0"
+
+# wayland
+wayland-backend = { version = "0.3.7", optional = true, default-features = false }
+wayland-scanner = { version = "0.31.4", optional = true }
 
 [dependencies.smithay]
-git = "https://github.com/technobaboo/smithay.git"
-branch = "feature/public_input"
+# git = "https://github.com/technobaboo/smithay.git"
+# git = "https://github.com/colinmarc/smithay.git"
+git = "https://github.com/smithay/smithay.git"
+# path = "../smithay"
 default-features = false
-features = ["desktop", "renderer_gl", "wayland_frontend"]
-version = "*"
+features = ["desktop", "backend_drm", "renderer_gl", "wayland_frontend"]
+optional = true
+
+
+[dependencies.stereokit-rust]
+# path = "../StereoKit-rust"
+git = "https://github.com/mvvvv/StereoKit-rust.git"
+# git = "https://github.com/technobaboo/StereoKit-rust.git"
+features = ["no-event-loop"]
+default-features = false
+
+[dependencies.stardust-xr]
+workspace = true
+
+[dependencies.stardust-xr-server-codegen]
+path = "codegen"

README.md

@@ -1,22 +1,164 @@
-# Stardust XR Reference Server
+# Stardust XR Server
 
-This project is a usable Linux display server that reinvents human-computer interaction for all kinds of XR, from putting 2D/XR apps into various 3D shells for varying uses to SDF-based interaction.
+Stardust XR is a display server for VR and AR headsets on Linux-based systems. [Stardust provides a 3D environment](https://www.youtube.com/watch?v=v2WblwbaLaA), where anything from 2D windows (including your existing apps!), to 3D apps built from objects, can exist together in physical space.  
 
-## Prerequisites
-1. Cargo
-2. CMake
-3. EGL+GLES 3.2
-4. GLX+Xlib
-5. fontconfig
-6. dlopen
-7. OpenXR Loader (required even if run in flatscreen mode)
+![workflow](/img/workflow.png)
 
-## Build
+## Core Dependencies 
+| **Dependency**              | **Ubuntu/Debian**                                                                               | **Arch Linux**                                    | **Fedora**                                                  |
+|-----------------------------|-------------------------------------------------------------------------------------------------|---------------------------------------------------|-------------------------------------------------------------|
+| **Cargo**                   | `cargo`                                                                                       | `cargo` | `cargo` |
+| **CMake**                   | `cmake`                                                                                       | `cmake`                                           | `cmake`                                                     |
+| **EGL+GLES 3.2**            | `libegl1-mesa-dev`, `libgles2-mesa-dev`                                                         | `mesa` *(provides EGL/GLES libraries and headers)* | `mesa-libEGL-devel`, `mesa-libGLES-devel`                     |
+| **GLX+Xlib**                | `libx11-dev`, `libxfixes-dev`, `libxcb1-dev`, `libgl1-mesa-dev`, `libxkbcommon-dev`              | `libx11`, `libxfixes`, `libxcb` *(and GLX via mesa)*| `libX11-devel`, `libXfixes-devel`, `libxcb-devel`, `mesa-libGL-devel` *(or equivalent)* |
+| **fontconfig**              | `libfontconfig1-dev`                                                                            | `fontconfig`                                      | `fontconfig-devel`                                          |
+| **dlopen** (glibc function) | Provided by `libc6-dev` (part of the core C library)                                            | Provided by `glibc` *(included in base-devel)*    | Provided by `glibc-devel`                                     |
+| **OpenXR Loader**           | `libopenxr-loader1`, `libopenxr-dev`, `libopenxr1-monado`                                       | `openxr`                                          | `openxr-devel`                                              |
+
+Command line installation of core & dynamic dependencies are provided below:
+<details>
+<summary>Ubuntu/Debian</summary> 
+  <pre><code class="language-bash">
+  sudo apt-get update && sudo apt-get install -y \
+  build-essential \
+  cargo \
+  cmake \
+  libegl1-mesa-dev libgles2-mesa-dev \
+  libx11-dev libxfixes-dev libxcb1-dev libxau-dev libgl1-mesa-dev libxkbcommon-dev \
+  libfontconfig1-dev libfreetype6-dev libharfbuzz-dev libgraphite2-dev \
+  libc6-dev \
+  libopenxr-loader1 libopenxr-dev libopenxr1-monado libwayland-dev \
+  libjsoncpp-dev libdrm-dev libexpat1-dev libxcb-randr0-dev \
+  libxml2-dev libffi-dev libbz2-dev libpng-dev libbrotli-dev liblzma-dev libglib2.0-dev libpcre2-dev
+  </code></pre>
+</details>
+
+<details>
+<summary>Arch Linux</summary> 
+  <pre><code class="language-bash">
+  sudo pacman -Syu --needed \
+  base-devel \
+  rust \
+  cmake \
+  mesa \
+  libx11 \
+  libxfixes \
+  libxcb \
+  libxkbcommon \
+  fontconfig \
+  freetype2 \
+  openxr \
+  jsoncpp \
+  libffi \
+  wayland \
+  expat \
+  libxml2 \
+  libxau \
+  bzip2 \
+  xz \
+  libpng \
+  brotli \
+  pcre2 \
+  glib2 \
+  libdrm
+  </code></pre>
+</details>
+<details>
+<summary>Fedora</summary> 
+  <pre><code class="language-bash">
+sudo dnf group install development-tools && \
+sudo dnf install -y \
+  cargo \
+  cmake \
+  mesa-libEGL-devel \
+  mesa-libGLES-devel \
+  libX11-devel \
+  libXfixes-devel \
+  libxcb-devel \
+  libxkbcommon-devel \
+  fontconfig-devel \
+  freetype-devel \
+  harfbuzz-devel \
+  graphite2-devel \
+  openxr-devel \ 
+  wayland-devel \
+  jsoncpp-devel \
+  libdrm-devel \
+  expat-devel \
+  xcb-util-devel \
+  libxml2-devel \
+  libXau-devel \
+  bzip2-devel \
+  xz-devel \
+  libpng-devel \
+  brotli-devel \
+  pcre2-devel \
+  glib2-devel
+  </code></pre>
+</details>
+
+## Installation
+
+More detailed instructions and walkthroughs are provided at https://www.stardustxr.org
+
+The [Terra Repository](https://terra.fyralabs.com/) is required, and comes pre-installed with [Ultramarine Linux](https://ultramarine-linux.org/). Other Fedora Editions and derivatives can directly install terra-release:
+
+```bash
+sudo dnf install --nogpgcheck --repofrompath 'terra,https://repos.fyralabs.com/terra$releasever' terra-release
+```
+
+For a full installation of the Stardust XR server *and* a selected group of clients, run:
+
+```bash
+sudo dnf group install stardust-xr
+```
+
+## Manual Build
+We've provided a manual installation script [here](https://github.com/cyberneticmelon/usefulscripts/blob/main/stardustxr_setup.sh) that clones and builds the Stardust XR server along with a number of other clients from their respective repositories, and provides a startup script for automatically launching some clients.
+
+After cloning the repository
 ```bash
 cargo build
 ```
 
-## Install
-```bash
-cargo install
-```
+## Usage
+> [!NOTE]
+> For help with setting up an XR headset on linux, visit https://stardustxr.org/docs/get-started/setup-openxr
+
+
+The **Stardust XR Server** is a server that runs clients, so without any running, you will see a black screen. If you only have the server installed, we recommend also cloning and building the following clients to start: [Flatland](https://github.com/StardustXR/flatland), which allows normal 2D apps to run in Stardust, [Protostar](https://github.com/StardustXR/protostar), which contains Hexagon Launcher, an app launcher menu, and [Black Hole](https://github.com/StardustXR/black-hole) to quickly tuck away your objects and apps (kind of like desktop peek on Windows).
+
+First, try running `cargo run -- -f` in a terminal window to check out flatscreen mode, (or `stardust-xr-server -f` / `stardust-xr-server_dev -f` if you installed via dnf or the manual installation script, respectively, as they provide symlinks.)
+
+If there aren't already any clients running, you'll need to manually launch them by either navigating to their repositories and running `cargo run`, or running them via their names if you installed via dnf or the manual installation script, such as `flatland`, `hexagon_launcher`, etc.
+
+> [!IMPORTANT]
+> [Flatland](https://github.com/StardustXR/flatland) must be running for 2D apps to launch. 
+
+### Startup Script
+A startup script can be created at `~/.config/stardust/startup` that will launch specified settings and clients/applications, an example of which is shown [here](https://github.com/cyberneticmelon/usefulscripts/blob/main/startup). If you used the [installation script](https://github.com/cyberneticmelon/usefulscripts/blob/main/stardustxr_setup.sh), one will have already been made for you. This allows wide flexibility of what clients to launch upon startup (and, for example, *where*, using the [Gravity](https://github.com/StardustXR/gravity) client to specify X Y and Z co-ordinates).
+
+### Flatscreen Navigation
+A video guide showcasing flatscreen controls is available [here](https://www.youtube.com/watch?v=JCYecSlKlDI)  
+
+To move around, hold down `Shift + W A S D`, with `Q` for moving down and `E` for moving up.
+![wasd](https://github.com/StardustXR/website/blob/main/static/img/updated_flat_wasd.GIF)
+
+To look around, hold down `Shift + Right` Click while moving the mouse. 
+![updated_look](https://github.com/StardustXR/website/blob/main/static/img/updated_flat_look.GIF)
+
+To drag applications out of the app launcher, hold down `Shift + ~`
+![updated_drag](https://github.com/StardustXR/website/blob/main/static/img/updated_flat_drag.GIF)
+
+### XR Navigation
+A video guide showcasing XR controls is available [here](https://www.youtube.com/watch?v=RbxFq6JjliA)  
+
+**Quest 3 Hand tracking**:
+Pinch to drag and drop, grasp with full hand for grabbing, point and click with pointer finger to click or pinch from a distance  
+
+![hand_pinching](https://github.com/StardustXR/website/blob/main/static/img/hand_pinching.GIF)
+
+**Quest 3 Controller**:
+Grab with the grip buttons, click by touching the tip of the cones or by using the trigger from a distance  
+
+![controller_click](https://github.com/StardustXR/website/blob/main/static/img/controller_click.GIF)

codegen/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+edition = "2021"
+name = "stardust-xr-server-codegen"
+version = "0.1.0"
+
+[lib]
+proc-macro = true
+
+[dependencies]
+convert_case = "0.6.0"
+quote = "1.0.33"
+mint = "0.5.9"
+proc-macro2 = "1.0.71"
+split-iter = "0.1.0"
+
+stardust-xr = { workspace = true }

codegen/src/lib.rs

@@ -0,0 +1,617 @@
+use convert_case::{Case, Casing};
+use proc_macro2::{Ident, Span, TokenStream};
+use quote::{quote, ToTokens};
+use split_iter::Splittable;
+use stardust_xr::schemas::protocol::*;
+
+fn fold_tokens(a: TokenStream, b: TokenStream) -> TokenStream {
+	quote!(#a #b)
+}
+
+#[proc_macro]
+pub fn codegen_root_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(ROOT_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_node_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(NODE_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_spatial_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(SPATIAL_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_field_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(FIELD_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_data_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(DATA_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_audio_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(AUDIO_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_drawable_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(DRAWABLE_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_input_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(INPUT_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_item_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(ITEM_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_item_camera_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(ITEM_CAMERA_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_item_panel_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(ITEM_PANEL_PROTOCOL)
+}
+
+fn codegen_protocol(protocol: &'static str) -> proc_macro::TokenStream {
+	let protocol = Protocol::parse(protocol).unwrap();
+	let interface = protocol
+		.interface
+		.map(|p| {
+			let node_id = p.node_id;
+			let node_id = quote! {
+				const INTERFACE_NODE_ID: u64 = #node_id;
+			};
+			let aspect = generate_aspect(&Aspect {
+				name: "interface".to_string(),
+				description: protocol.description.clone(),
+				inherits: vec![],
+				members: p.members,
+			});
+			quote!(#node_id #aspect)
+		})
+		.unwrap_or_default();
+	let custom_enums = protocol
+		.custom_enums
+		.iter()
+		.map(generate_custom_enum)
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let custom_unions = protocol
+		.custom_unions
+		.iter()
+		.map(generate_custom_union)
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let custom_structs = protocol
+		.custom_structs
+		.iter()
+		.map(generate_custom_struct)
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let aspects = protocol
+		.aspects
+		.iter()
+		.map(generate_aspect)
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	quote!(#custom_enums #custom_unions #custom_structs #aspects #interface).into()
+}
+
+fn generate_custom_enum(custom_enum: &CustomEnum) -> TokenStream {
+	let name = Ident::new(&custom_enum.name.to_case(Case::Pascal), Span::call_site());
+	let description = &custom_enum.description;
+
+	let argument_decls = custom_enum
+		.variants
+		.iter()
+		.map(|a| Ident::new(&a.to_case(Case::Pascal), Span::call_site()).to_token_stream())
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default();
+
+	quote! {
+		#[doc = #description]
+		#[derive(Debug, Clone, Copy, serde_repr::Deserialize_repr, serde_repr::Serialize_repr)]
+		#[repr(u32)]
+		pub enum #name {#argument_decls}
+	}
+}
+fn generate_custom_union(custom_union: &CustomUnion) -> TokenStream {
+	let name = Ident::new(&custom_union.name.to_case(Case::Pascal), Span::call_site());
+	let description = &custom_union.description;
+
+	let option_decls = custom_union
+		.options
+		.iter()
+		.map(generate_union_option)
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default();
+
+	quote! {
+		#[doc = #description]
+		#[derive(Debug, Clone, serde::Deserialize, serde::Serialize)]
+		#[serde(untagged)]
+		pub enum #name {#option_decls}
+	}
+}
+fn generate_union_option(union_option: &UnionOption) -> TokenStream {
+	let name = union_option
+		.name
+		.as_ref()
+		.map(|n| n.to_case(Case::Pascal))
+		.unwrap_or_else(|| argument_type_option_name(&union_option._type));
+	let description = union_option
+		.description
+		.as_ref()
+		.map(|d| quote!(#[doc = #d]))
+		.unwrap_or_default();
+	let identifier = Ident::new(&name, Span::call_site());
+	let _type = generate_argument_type(&union_option._type, false, true);
+	quote! (#description #identifier(#_type))
+}
+fn generate_custom_struct(custom_struct: &CustomStruct) -> TokenStream {
+	let name = Ident::new(&custom_struct.name.to_case(Case::Pascal), Span::call_site());
+	let description = &custom_struct.description;
+
+	let argument_decls = custom_struct
+		.fields
+		.iter()
+		.map(|a| generate_argument_decl(a, true))
+		.map(|d| quote!(pub #d))
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default();
+
+	quote! {
+		#[doc = #description]
+		#[derive(Debug, Clone, serde::Deserialize, serde::Serialize)]
+		pub struct #name {#argument_decls}
+	}
+}
+
+fn generate_aspect(aspect: &Aspect) -> TokenStream {
+	let description = &aspect.description;
+	let (client_members, server_members) = aspect.members.iter().split(|m| m.side == Side::Server);
+
+	let client_mod_name = Ident::new(
+		&format!("{}_client", &aspect.name.to_case(Case::Snake)),
+		Span::call_site(),
+	);
+	let client_side_members = client_members
+		.map(generate_member)
+		.reduce(fold_tokens)
+		.map(|t| {
+			// TODO: properly import all dependencies
+			quote! {
+				pub mod #client_mod_name {
+					use super::*;
+					#t
+				}
+			}
+		})
+		.unwrap_or_default();
+
+	let aspect_trait_name = Ident::new(
+		&format!("{}Aspect", &aspect.name.to_case(Case::Pascal)),
+		Span::call_site(),
+	);
+
+	let opcodes = aspect
+		.members
+		.iter()
+		.map(|m| {
+			let aspect_name = aspect.name.to_case(Case::ScreamingSnake);
+			let member_name = m.name.to_case(Case::ScreamingSnake);
+			let name_type = if m.side == Side::Client {
+				"CLIENT"
+			} else {
+				"SERVER"
+			};
+			let name = Ident::new(
+				&format!("{aspect_name}_{member_name}_{name_type}_OPCODE"),
+				Span::call_site(),
+			);
+			let opcode = m.opcode;
+
+			quote!(pub(crate) const #name: u64 = #opcode;)
+		})
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let alias_info = generate_alias_info(aspect);
+
+	let server_side_members = server_members
+		.map(generate_member)
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let add_node_members = aspect
+		.members
+		.iter()
+		.filter(|m| m.side == Side::Server)
+		.map(generate_handler)
+		.reduce(fold_tokens)
+		.map(|members| {
+			quote! {
+				fn add_node_members(node: &crate::nodes::Node) {
+					#members
+				}
+			}
+		})
+		.unwrap_or_default();
+	let server_side_members = quote! {
+		#[doc = #description]
+		pub trait #aspect_trait_name {
+			#add_node_members
+			#server_side_members
+		}
+	};
+	quote!(#opcodes #alias_info #client_side_members #server_side_members)
+}
+
+fn generate_alias_opcodes(aspect: &Aspect, side: Side, _type: MemberType) -> TokenStream {
+	aspect
+		.members
+		.iter()
+		.filter(|m| m.side == side)
+		.filter(|m| m._type == _type)
+		.map(|m| m.opcode)
+		.map(|o| quote!(#o))
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default()
+}
+fn generate_alias_info(aspect: &Aspect) -> TokenStream {
+	let aspect_alias_info_name = Ident::new(
+		&format!(
+			"{}_ASPECT_ALIAS_INFO",
+			aspect.name.to_case(Case::ScreamingSnake)
+		),
+		Span::call_site(),
+	);
+	let local_signals = generate_alias_opcodes(aspect, Side::Server, MemberType::Signal);
+	let local_methods = generate_alias_opcodes(aspect, Side::Server, MemberType::Method);
+	let remote_signals = generate_alias_opcodes(aspect, Side::Client, MemberType::Signal);
+
+	let inherits = aspect
+		.inherits
+		.iter()
+		.map(|a| {
+			Ident::new(
+				&format!("{}_ASPECT_ALIAS_INFO", a.to_case(Case::ScreamingSnake)),
+				Span::call_site(),
+			)
+		})
+		.map(|a| quote!(#a.clone()))
+		.fold(quote!(), |a, b| quote!(#a + #b));
+
+	quote! {
+		lazy_static::lazy_static! {
+			pub static ref #aspect_alias_info_name: crate::nodes::alias::AliasInfo = crate::nodes::alias::AliasInfo {
+				server_signals: vec![#local_signals],
+				server_methods: vec![#local_methods],
+				client_signals: vec![#remote_signals],
+			}
+			#inherits;
+		}
+	}
+}
+
+fn generate_member(member: &Member) -> TokenStream {
+	let id = member.opcode;
+	let name = Ident::new(&member.name.to_case(Case::Snake), Span::call_site());
+	let description = &member.description;
+
+	let side = member.side;
+	let _type = member._type;
+
+	let first_args = match member.side {
+		Side::Server => {
+			quote!(_node: std::sync::Arc<crate::nodes::Node>, _calling_client: std::sync::Arc<crate::core::client::Client>)
+		}
+		Side::Client => quote!(_node: &crate::nodes::Node),
+	};
+	let argument_decls = member
+		.arguments
+		.iter()
+		.map(|a| generate_argument_decl(a, member.side == Side::Server))
+		.fold(first_args, |a, b| quote!(#a, #b));
+
+	let argument_uses = member
+		.arguments
+		.iter()
+		.map(|a| generate_argument_serialize(&a.name, &a._type, a.optional))
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default();
+	let return_type = member
+		.return_type
+		.as_ref()
+		.map(|r| generate_argument_type(r, false, true))
+		.unwrap_or_else(|| quote!(()));
+
+	match (side, _type) {
+		(Side::Client, MemberType::Method) => {
+			quote! {
+				#[doc = #description]
+				pub async fn #name(#argument_decls) -> color_eyre::eyre::Result<(#return_type, Vec<std::os::fd::OwnedFd>)> {
+					_node.execute_remote_method_typed(#id, &(#argument_uses), vec![]).await
+				}
+			}
+		}
+		(Side::Client, MemberType::Signal) => {
+			quote! {
+				#[doc = #description]
+				pub fn #name(#argument_decls) -> color_eyre::eyre::Result<()> {
+					let serialized = stardust_xr::schemas::flex::serialize((#argument_uses))?;
+					_node.send_remote_signal(#id, serialized)
+				}
+			}
+		}
+		(Side::Server, MemberType::Method) => {
+			quote! {
+				#[doc = #description]
+				fn #name(#argument_decls) -> impl std::future::Future<Output = color_eyre::eyre::Result<#return_type>> + Send + 'static;
+			}
+		}
+		(Side::Server, MemberType::Signal) => {
+			quote! {
+				#[doc = #description]
+				fn #name(#argument_decls) -> color_eyre::eyre::Result<()>;
+			}
+		}
+	}
+}
+fn generate_handler(member: &Member) -> TokenStream {
+	let opcode = member.opcode;
+	let member_name_ident = Ident::new(&member.name, Span::call_site());
+
+	let argument_names = member
+		.arguments
+		.iter()
+		.map(generate_argument_name)
+		.reduce(|a, b| quote!(#a, #b));
+	let argument_types = member
+		.arguments
+		.iter()
+		.map(|a| {
+			let _type = convert_deserializeable_argument_type(&a._type);
+			generate_argument_type(&_type, a.optional, true)
+		})
+		.reduce(|a, b| quote!(#a, #b));
+	// dbg!(&argument_types);
+	let deserialize = argument_names
+		.clone()
+		.zip(argument_types)
+		.map(|(argument_names, argument_types)| {
+			quote!(let (#argument_names): (#argument_types) = stardust_xr::schemas::flex::deserialize(_message.as_ref())?;)
+		})
+		.unwrap_or_default();
+	let serialize = generate_argument_serialize(
+		"result",
+		&member.return_type.clone().unwrap_or(ArgumentType::Empty),
+		false,
+	);
+	let argument_uses = member
+		.arguments
+		.iter()
+		.map(|a| generate_argument_deserialize(&a.name, &a._type, a.optional))
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default();
+	match member._type {
+		MemberType::Signal => quote! {
+			node.add_local_signal(#opcode, |_node, _calling_client, _message| {
+				#deserialize
+				Self::#member_name_ident(_node, _calling_client.clone(), #argument_uses)
+			});
+		},
+		MemberType::Method => quote! {
+			node.add_local_method(#opcode, |_node, _calling_client, _message, _method_response| {
+				_method_response.wrap_async(async move {
+					#deserialize
+					let result = Self::#member_name_ident(_node, _calling_client.clone(), #argument_uses).await?;
+					Ok((#serialize, Vec::new()))
+				});
+			});
+		},
+	}
+}
+fn generate_argument_name(argument: &Argument) -> TokenStream {
+	Ident::new(&argument.name.to_case(Case::Snake), Span::call_site()).to_token_stream()
+}
+
+fn convert_deserializeable_argument_type(argument_type: &ArgumentType) -> ArgumentType {
+	match argument_type {
+		ArgumentType::Node { .. } => ArgumentType::NodeID,
+		ArgumentType::Vec(v) => {
+			ArgumentType::Vec(Box::new(convert_deserializeable_argument_type(v.as_ref())))
+		}
+		ArgumentType::Map(v) => {
+			ArgumentType::Map(Box::new(convert_deserializeable_argument_type(v.as_ref())))
+		}
+		f => f.clone(),
+	}
+}
+fn generate_argument_deserialize(
+	argument_name: &str,
+	argument_type: &ArgumentType,
+	optional: bool,
+) -> TokenStream {
+	let name = Ident::new(&argument_name.to_case(Case::Snake), Span::call_site());
+	if let ArgumentType::Node { .. } = argument_type {
+		return match optional {
+			true => quote!(#name.map(|n| _calling_client.get_node(#argument_name, n)?)),
+			false => quote!(_calling_client.get_node(#argument_name, #name)?),
+		};
+	}
+	if optional {
+		let mapping = generate_argument_deserialize("o", argument_type, false);
+		return quote!(#name.map(|o| Ok::<_, color_eyre::eyre::Report>(#mapping)).transpose()?);
+	}
+
+	match argument_type {
+		ArgumentType::Color => quote!(color::rgba_linear!(#name[0], #name[1], #name[2], #name[3])),
+		ArgumentType::Vec(v) => {
+			let mapping = generate_argument_deserialize("a", v, false);
+			quote!(#name.into_iter().map(|a| Ok(#mapping)).collect::<color_eyre::eyre::Result<Vec<_>>>()?)
+		}
+		ArgumentType::Map(v) => {
+			let mapping = generate_argument_deserialize("a", v, false);
+			quote!(#name.into_iter().map(|(k, a)| Ok((k, #mapping))).collect::<color_eyre::eyre::Result<rustc_hash::FxHashMap<String, _>>>()?)
+		}
+		_ => quote!(#name),
+	}
+}
+fn generate_argument_serialize(
+	argument_name: &str,
+	argument_type: &ArgumentType,
+	optional: bool,
+) -> TokenStream {
+	let name = Ident::new(&argument_name.to_case(Case::Snake), Span::call_site());
+	match argument_type {
+		ArgumentType::Node {
+			_type,
+			return_id_parameter_name: _,
+		} => match optional {
+			true => quote!(#name.map(|n| n.get_id())),
+			false => quote!(#name.get_id()),
+		},
+		ArgumentType::Color => quote!([#name.c.r, #name.c.g, #name.c.b, #name.a]),
+		ArgumentType::Vec(v) => {
+			let mapping = generate_argument_serialize("a", v, false);
+			quote!(#name.into_iter().map(|a| Ok(#mapping)).collect::<color_eyre::eyre::Result<Vec<_>>>()?)
+		}
+		ArgumentType::Map(v) => {
+			let mapping = generate_argument_serialize("a", v, false);
+			quote!(#name.into_iter().map(|(k, a)| Ok((k, #mapping))).collect::<color_eyre::eyre::Result<rustc_hash::FxHashMap<String, _>>>()?)
+		}
+		_ => quote!(#name),
+	}
+}
+fn generate_argument_decl(argument: &Argument, owned_values: bool) -> TokenStream {
+	let name = Ident::new(&argument.name.to_case(Case::Snake), Span::call_site());
+	let mut _type = generate_argument_type(&argument._type, argument.optional, owned_values);
+	quote!(#name: #_type)
+}
+fn argument_type_option_name(argument_type: &ArgumentType) -> String {
+	match argument_type {
+		ArgumentType::Empty => "Empty".to_string(),
+		ArgumentType::Bool => "Bool".to_string(),
+		ArgumentType::Int => "Int".to_string(),
+		ArgumentType::UInt => "UInt".to_string(),
+		ArgumentType::Float => "Float".to_string(),
+		ArgumentType::Vec2(_) => "Vec2".to_string(),
+		ArgumentType::Vec3(_) => "Vec3".to_string(),
+		ArgumentType::Quat => "Quat".to_string(),
+		ArgumentType::Mat4 => "Mat4".to_string(),
+		ArgumentType::Color => "Color".to_string(),
+		ArgumentType::String => "String".to_string(),
+		ArgumentType::Bytes => "Bytes".to_string(),
+		ArgumentType::Vec(v) => format!("{}Vector", argument_type_option_name(v)),
+		ArgumentType::Map(m) => format!("{}Map", argument_type_option_name(m)),
+		ArgumentType::NodeID => "Node ID".to_string(),
+		ArgumentType::Datamap => "Datamap".to_string(),
+		ArgumentType::ResourceID => "ResourceID".to_string(),
+		ArgumentType::Enum(e) => e.clone(),
+		ArgumentType::Union(u) => u.clone(),
+		ArgumentType::Struct(s) => s.clone(),
+		ArgumentType::Node { _type, .. } => _type.clone(),
+	}
+}
+fn generate_argument_type(
+	argument_type: &ArgumentType,
+	optional: bool,
+	owned: bool,
+) -> TokenStream {
+	let _type = match argument_type {
+		ArgumentType::Empty => quote!(()),
+		ArgumentType::Bool => quote!(bool),
+		ArgumentType::Int => quote!(i32),
+		ArgumentType::UInt => quote!(u32),
+		ArgumentType::Float => quote!(f32),
+		ArgumentType::Vec2(t) => {
+			let t = generate_argument_type(t, false, true);
+			quote!(stardust_xr::values::Vector2<#t>)
+		}
+		ArgumentType::Vec3(t) => {
+			let t = generate_argument_type(t, false, true);
+			quote!(stardust_xr::values::Vector3<#t>)
+		}
+		ArgumentType::Quat => quote!(stardust_xr::values::Quaternion),
+		ArgumentType::Mat4 => quote!(stardust_xr::values::Mat4),
+		ArgumentType::Color => quote!(stardust_xr::values::Color),
+		ArgumentType::Bytes => {
+			if !owned {
+				quote!(&[u8])
+			} else {
+				quote!(Vec<u8>)
+			}
+		}
+		ArgumentType::String => {
+			if !owned {
+				quote!(&str)
+			} else {
+				quote!(String)
+			}
+		}
+		ArgumentType::Vec(t) => {
+			let t = generate_argument_type(t, false, true);
+			if !owned {
+				quote!(&[#t])
+			} else {
+				quote!(Vec<#t>)
+			}
+		}
+		ArgumentType::Map(t) => {
+			let t = generate_argument_type(t, false, true);
+
+			if !owned {
+				quote!(&stardust_xr::values::Map<String, #t>)
+			} else {
+				quote!(stardust_xr::values::Map<String, #t>)
+			}
+		}
+		ArgumentType::NodeID => quote!(u64),
+		ArgumentType::Datamap => {
+			if !owned {
+				quote!(&stardust_xr::values::Datamap)
+			} else {
+				quote!(stardust_xr::values::Datamap)
+			}
+		}
+		ArgumentType::ResourceID => {
+			if !owned {
+				quote!(&stardust_xr::values::ResourceID)
+			} else {
+				quote!(stardust_xr::values::ResourceID)
+			}
+		}
+		ArgumentType::Enum(e) => {
+			let enum_name = Ident::new(&e.to_case(Case::Pascal), Span::call_site());
+			quote!(#enum_name)
+		}
+		ArgumentType::Union(u) => {
+			let union_name = Ident::new(&u.to_case(Case::Pascal), Span::call_site());
+			quote!(#union_name)
+		}
+		ArgumentType::Struct(s) => {
+			let struct_name = Ident::new(&s.to_case(Case::Pascal), Span::call_site());
+			if !owned {
+				quote!(&#struct_name)
+			} else {
+				quote!(#struct_name)
+			}
+		}
+		ArgumentType::Node {
+			_type,
+			return_id_parameter_name: _,
+		} => {
+			if !owned {
+				quote!(&std::sync::Arc<crate::nodes::Node>)
+			} else {
+				quote!(std::sync::Arc<crate::nodes::Node>)
+			}
+		}
+	};
+
+	if optional {
+		quote!(Option<#_type>)
+	} else {
+		_type
+	}
+}

flake.lock

@@ -0,0 +1,171 @@
+{
+  "nodes": {
+    "crane": {
+      "inputs": {
+        "nixpkgs": [
+          "flatland",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1712681629,
+        "narHash": "sha256-bMDXn4AkTXLCpoZbII6pDGoSeSe9gI87jxPsHRXgu/E=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "220387ac8e99cbee0ca4c95b621c4bc782b6a235",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1722555600,
+        "narHash": "sha256-XOQkdLafnb/p9ij77byFQjDf5m5QYl9b2REiVClC+x4=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "8471fe90ad337a8074e957b69ca4d0089218391d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "flake-parts_2": {
+      "inputs": {
+        "nixpkgs-lib": [
+          "hercules-ci-effects",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1712014858,
+        "narHash": "sha256-sB4SWl2lX95bExY2gMFG5HIzvva5AVMJd4Igm+GpZNw=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "9126214d0a59633752a136528f5f3b9aa8565b7d",
+        "type": "github"
+      },
+      "original": {
+        "id": "flake-parts",
+        "type": "indirect"
+      }
+    },
+    "flatland": {
+      "inputs": {
+        "crane": "crane",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1713050562,
+        "narHash": "sha256-m7c6XpmpTM1URuqMG2KqtaWbL2Vt8vJFJtmvq123BmY=",
+        "owner": "StardustXR",
+        "repo": "flatland",
+        "rev": "b3b0f29c4ea1b82c96cf9de507837bf15a5e4c0e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "StardustXR",
+        "repo": "flatland",
+        "type": "github"
+      }
+    },
+    "hercules-ci-effects": {
+      "inputs": {
+        "flake-parts": "flake-parts_2",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1719226092,
+        "narHash": "sha256-YNkUMcCUCpnULp40g+svYsaH1RbSEj6s4WdZY/SHe38=",
+        "owner": "hercules-ci",
+        "repo": "hercules-ci-effects",
+        "rev": "11e4b8dc112e2f485d7c97e1cee77f9958f498f5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "hercules-ci-effects",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1712791164,
+        "narHash": "sha256-3sbWO1mbpWsLepZGbWaMovSO7ndZeFqDSdX0hZ9nVyw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "1042fd8b148a9105f3c0aca3a6177fd1d9360ba5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1722555339,
+        "narHash": "sha256-uFf2QeW7eAHlYXuDktm9c25OxOyCoUOQmh5SZ9amE5Q=",
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/a5d394176e64ab29c852d03346c1fc9b0b7d33eb.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/a5d394176e64ab29c852d03346c1fc9b0b7d33eb.tar.gz"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1713714899,
+        "narHash": "sha256-+z/XjO3QJs5rLE5UOf015gdVauVRQd2vZtsFkaXBq2Y=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6143fc5eeb9c4f00163267708e26191d1e918932",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1723991338,
+        "narHash": "sha256-Grh5PF0+gootJfOJFenTTxDTYPidA3V28dqJ/WV7iis=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "8a3354191c0d7144db9756a74755672387b702ba",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-parts": "flake-parts",
+        "flatland": "flatland",
+        "hercules-ci-effects": "hercules-ci-effects",
+        "nixpkgs": "nixpkgs_3"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,91 @@
+{
+  nixConfig = {
+    extra-substituters = [ "https://stardustxr.cachix.org" ];
+    extra-trusted-public-keys = [
+      "stardustxr.cachix.org-1:mWSn8Ap2RLsIWT/8gsj+VfbJB6xoOkPaZpbjO+r9HBo="
+    ];
+  };
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    hercules-ci-effects.url = "github:hercules-ci/hercules-ci-effects";
+
+    # Since we do not have a monorepo, we have to fetch Flatland in order to use
+    # it to create VM Tests
+    flatland.url = "github:StardustXR/flatland";
+  };
+  outputs =
+    inputs@{ self, flake-parts, nixpkgs, hercules-ci-effects, flatland, ... }:
+    let
+      name = (builtins.fromTOML (builtins.readFile ./Cargo.toml)).package.name;
+      src = builtins.path {
+        name = "${name}-source";
+        path = toString ./.;
+        filter = path: type:
+          nixpkgs.lib.all (n: builtins.baseNameOf path != n) [
+            "flake.nix"
+            "flake.lock"
+            "nix"
+            "README.md"
+          ];
+      };
+    in flake-parts.lib.mkFlake { inherit inputs; } {
+      imports = [ flake-parts.flakeModules.easyOverlay ];
+      systems = [ "aarch64-linux" "x86_64-linux" "riscv64-linux" ];
+      perSystem = { config, self', inputs', pkgs, system, ... }: {
+        _module.args.pkgs = import inputs.nixpkgs {
+          inherit system;
+          overlays = [ inputs.self.overlays.default ];
+        };
+        overlayAttrs = config.packages;
+        packages = let sk_gpu = pkgs.callPackage ./nix/sk_gpu.nix { };
+        in {
+          default = self'.packages.${name};
+          gnome-graphical-test = self'.checks.gnome-graphical-test;
+          "${name}" = pkgs.callPackage ./nix/stardust-xr-server.nix {
+            inherit name src sk_gpu;
+          };
+        };
+        apps.default = {
+          type = "app";
+          program = self'.packages.${name} + "/bin/stardust-xr-server";
+        };
+        checks.gnome-graphical-test = pkgs.nixosTest
+          (import ./nix/gnome-graphical-test.nix { inherit pkgs self; });
+        devShells.default = pkgs.mkShell {
+          inputsFrom = [ self'.packages.default ];
+          LIBCLANG_PATH = "${pkgs.libclang.lib}/lib";
+        };
+      };
+      flake = {
+        herculesCI.ciSystems = [ "x86_64-linux" ];
+        effects = let
+          pkgs = nixpkgs.legacyPackages.x86_64-linux;
+          hci-effects = hercules-ci-effects.lib.withPkgs pkgs;
+        in { ref, rev, ... }: {
+          gnome-graphical-test = hci-effects.mkEffect {
+            secretsMap."stardustxrDiscord" = "stardustxrDiscord";
+            secretsMap."stardustxrIpfs" = "stardustxrIpfs";
+            effectScript = ''
+              readSecretString stardustxrDiscord .webhook > .webhook
+              readSecretString stardustxrIpfs .basicauth > .basicauth
+              set -x
+              export RESPONSE=$(curl -H @.basicauth -F file=@${
+                self.packages."x86_64-linux".gnome-graphical-test
+              }/screen.png https://ipfs-api.stardustxr.org/api/v0/add)
+              export CID=$(echo "$RESPONSE" | ${pkgs.jq}/bin/jq -r .Hash)
+              set +x
+              export ADDRESS="https://ipfs.stardustxr.org/ipfs/$CID"
+              ${pkgs.discord-sh}/bin/discord.sh \
+                --description "\`stardustxr/server\` has been modified, here's how it renders \`weston-cliptest\` on \`flatland\` via \`monado-service\` inside of the \`gnome-graphical-test\`" \
+                --field "Ref;${ref}" \
+                --field "Commit ID;${rev}" \
+                --field "Flatland Revision;${flatland.rev}" \
+                --field "Reproducer;\`nix build github:stardustxr/server/${rev}#gnome-graphical-test\`" \
+                --image "$ADDRESS"
+            '';
+          };
+        };
+      };
+    };
+}

nix/gnome-graphical-test.nix

@@ -0,0 +1,155 @@
+{ pkgs, lib ? pkgs.lib, self, ...  }:
+# Some code is copy-pasted from https://github.com/NixOS/nixpkgs/blob/master/nixos/tests/gnome.nix
+# TODO: make this less boiler-platey and make a function like mkGnomeTest that does all this and upstream it to nixpkgs
+{
+  name = "stardust-xr-server-gnome-vmtest";
+  meta = with lib; {
+    maintainers = [ maintainers.matthewcroughan ];
+  };
+  nodes.machine = { ... }: {
+    imports = [ "${pkgs.path}/nixos/tests/common/user-account.nix" ];
+    virtualisation.qemu.options = [
+      "-device virtio-gpu-pci"
+    ];
+    environment.systemPackages = [ pkgs.monado ];
+    services.xserver = {
+      enable = true;
+      desktopManager.gnome = {
+        enable = true;
+        debug = true;
+        # Set a nice desktop background that is pleasing to the eyes :3
+        extraGSettingsOverrides = ''
+          [org.gnome.desktop.background]
+          picture-uri='file://${pkgs.gnome.gnome-backgrounds}/share/backgrounds/gnome/blobs-l.svg'
+          picture-uri-dark='file://${pkgs.gnome.gnome-backgrounds}/share/backgrounds/gnome/blobs-l.svg'
+        '';
+      };
+      displayManager = {
+        gdm = {
+          enable = true;
+          debug = true;
+        };
+        autoLogin = {
+          enable = true;
+          user = "alice";
+        };
+      };
+    };
+    systemd.user.services = {
+      "monado" = {
+        after = [ "graphical-session.target" "default.target" "org.gnome.Shell@wayland.service" ];
+        environment = {
+          XRT_COMPOSITOR_FORCE_WAYLAND = "1";
+          WAYLAND_DISPLAY = "wayland-0";
+        };
+        serviceConfig = {
+          ExecStartPre = [
+            "${pkgs.writeShellScript "sleep" ''
+              sleep 3
+            ''}"
+          ];
+          ExecStart = let
+            # stdin disappears in NixOS test driver ( machine.succeed() ), requiring us to specify < /dev/ttyS0 to fake stdin
+            exec-monado-service = pkgs.writeShellScript "exec-monado-service" "${pkgs.monado}/bin/monado-service < /dev/ttyS0";
+          in [
+            "${exec-monado-service}"
+          ];
+        };
+      };
+      "stardust-xr-server" = {
+        after = [ "monado.service" ];
+        serviceConfig = {
+          Type = "notify";
+          NotifyAccess = "all";
+          ExecStartPre = [
+            "${pkgs.writeShellScript "sleep" ''
+              sleep 3
+            ''}"
+          ];
+          ExecStart = let
+            notifyReady = pkgs.writeShellScript "notifyReady" "systemd-notify --ready";
+            exec-stardust-xr-server = pkgs.writeShellScript "exec-stardust-xr-server" "${self.packages.${pkgs.hostPlatform.system}.default}/bin/stardust-xr-server -e ${notifyReady}";
+          in [
+            "${exec-stardust-xr-server}"
+          ];
+        };
+      };
+      "weston-cliptest" = {
+        after = [ "flatland.service" ];
+        environment.WAYLAND_DISPLAY = "wayland-1";
+        serviceConfig = {
+          ExecStart = [
+            "${pkgs.weston}/bin/weston-cliptest"
+          ];
+        };
+      };
+      "flatland" = {
+        after = [ "stardust-xr-server.service" ];
+        serviceConfig = {
+          ExecStart = [
+            "${self.inputs.flatland.packages.${pkgs.hostPlatform.system}.default}/bin/flatland"
+          ];
+        };
+      };
+      "org.gnome.Shell@wayland" = {
+        wants = [ "monado.service" "stardust-xr-server.service" "flatland.service" "weston-cliptest.service" ];
+        serviceConfig = {
+          ExecStart = [
+            # Clear the list before overriding it.
+            ""
+            # Eval API is now internal so Shell needs to run in unsafe mode.
+            # TODO: improve test driver so that it supports openqa-like manipulation
+            # that would allow us to drop this mess.
+            "${pkgs.gnome.gnome-shell}/bin/gnome-shell --unsafe-mode"
+          ];
+        };
+      };
+    };
+  };
+
+  testScript = { nodes, ... }: let
+    # Keep line widths somewhat managable
+    user = nodes.machine.config.users.users.alice;
+    uid = toString user.uid;
+    bus = "DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/${uid}/bus";
+    gdbus = "${bus} gdbus";
+    su = command: "su ${user.name} -c '${command}'";
+
+    # Call javascript in gnome shell, returns a tuple (success, output), where
+    # `success` is true if the dbus call was successful and output is what the
+    # javascript evaluates to.
+    eval = "call --session -d org.gnome.Shell -o /org/gnome/Shell -m org.gnome.Shell.Eval";
+
+    # False when startup is done
+    startingUp = su "${gdbus} ${eval} Main.layoutManager._startingUp";
+  in ''
+      with subtest("Login to GNOME with GDM"):
+          # wait for gdm to start
+          machine.wait_for_unit("display-manager.service")
+          # wait for the wayland server
+          machine.wait_for_file("/run/user/${uid}/wayland-0")
+          # wait for alice to be logged in
+          machine.wait_for_unit("default.target", "${user.name}")
+          # check that logging in has given the user ownership of devices
+          assert "alice" in machine.succeed("getfacl -p /dev/snd/timer")
+
+      with subtest("Wait for GNOME Shell"):
+          # correct output should be (true, 'false')
+          machine.wait_until_succeeds(
+              "${startingUp} | grep -q 'true,..false'"
+          )
+
+      # To allow monado-service to use < /dev/ttyS0
+      machine.succeed("chown alice /dev/ttyS0")
+
+      with subtest("Open Monado and StardustXR"):
+          # Close the Activities view so that Shell can correctly track the focused window.
+          machine.send_key("esc")
+          machine.wait_for_unit("monado.service", "${user.name}")
+          machine.wait_for_unit("stardust-xr-server.service", "${user.name}")
+          machine.wait_for_unit("flatland.service", "${user.name}")
+          machine.wait_for_unit("weston-cliptest.service", "${user.name}")
+          machine.sleep(3)
+          machine.screenshot("screen")
+    '';
+}

nix/meshoptimizer.nix

@@ -0,0 +1,27 @@
+{ lib, stdenv, fetchFromGitHub, cmake }:
+
+stdenv.mkDerivation rec {
+  pname = "meshoptimizer";
+  version = "0.20";
+
+  src = fetchFromGitHub {
+    owner = "zeux";
+    repo = "meshoptimizer";
+    rev = "c21d3be6ddf627f8ca852ba4b6db9903b0557858";
+    sha256 = "sha256-QCxpM2g8WtYSZHkBzLTJNQ/oHb5j/n9rjaVmZJcCZIA=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  cmakeFlags = [
+    "-DCMAKE_POSITION_INDEPENDENT_CODE=ON"
+  ];
+
+  meta = with lib; {
+    description = "Mesh optimization library that makes meshes smaller and faster to render";
+    homepage = "https://github.com/zeux/meshoptimizer";
+    license = licenses.mit;
+    platforms = platforms.all;
+  };
+}
+  

nix/sk_gpu.nix

@@ -0,0 +1,16 @@
+{ stdenv, fetchurl, unzip }:
+
+let
+  sk_gpu_zip = fetchurl {
+    url =
+      "https://github.com/StereoKit/sk_gpu/releases/download/v2024.8.16/sk_gpu.v2024.8.16.zip";
+    sha256 = "sha256-Wk3PZFlWqhrsQ8xG0sQaV2xSasdg2D7TMiPvl/CgtGU=";
+  };
+in stdenv.mkDerivation rec {
+  name = "sk_gpu";
+  src = sk_gpu_zip;
+  unpackPhase = ''
+    unzip -d $out ${sk_gpu_zip}
+  '';
+  nativeBuildInputs = [ unzip ];
+}

nix/stardust-xr-server.nix

@@ -0,0 +1,86 @@
+{ rustPlatform
+, src
+, name
+, libGL
+, mesa
+, xorg
+, fontconfig
+, libxkbcommon
+, libclang
+
+, cmake
+, cpm-cmake
+, pkg-config
+, llvmPackages
+, fetchFromGitHub
+, sk_gpu
+, libXau
+
+, libXdmcp
+, stdenv
+, lib
+, openxr-loader
+}:
+
+rustPlatform.buildRustPackage rec {
+  inherit src name;
+  cargoLock = {
+    lockFile = (src + "/Cargo.lock");
+    allowBuiltinFetchGit = true;
+  };
+  buildFeatures = [ "local_deps" ];
+  FORCE_LOCAL_DEPS = true;
+  CPM_LOCAL_PACKAGES_ONLY = true;
+  CPM_SOURCE_CACHE = "./build";
+  CPM_USE_LOCAL_PACKAGES = true;
+  CPM_DOWNLOAD_ALL = false;
+
+  meshoptimizer = fetchFromGitHub {
+    owner = "zeux";
+    repo = "meshoptimizer";
+    rev = "c21d3be6ddf627f8ca852ba4b6db9903b0557858";
+    sha256 = "sha256-QCxpM2g8WtYSZHkBzLTJNQ/oHb5j/n9rjaVmZJcCZIA=";
+  };
+  basis_universal = fetchFromGitHub {
+    owner = "BinomialLLC";
+    repo = "basis_universal";
+    rev = "900e40fb5d2502927360fe2f31762bdbb624455f";
+    sha256 = "sha256-zBRAXgG5Fi6+5uPQCI/RCGatY6O4ELuYBoKrPNn4K+8=";
+  };
+
+  DEP_MESHOPTIMIZER_SOURCE = "${meshoptimizer}";
+  DEP_BASIS_UNIVERSAL_SOURCE = "${basis_universal}";
+  DEP_SK_GPU_SOURCE = "${sk_gpu}";
+
+  postPatch = let libPath = lib.makeLibraryPath [ stdenv.cc.cc.lib ];
+  in ''
+    sk=$(echo $cargoDepsCopy/stereokit-rust-*/StereoKit)
+    mkdir -p $sk/build/cpm
+
+    # This is not ideal, the original approach was to fetch the exact cmake
+    # file version that was wanted from GitHub directly, but at least this way it comes from Nixpkgs.. so meh
+    cp ${cpm-cmake}/share/cpm/CPM.cmake $sk/build/cpm/CPM_0.38.7.cmake
+    mkdir -p $sk/sk_gpu
+    cp -R ${sk_gpu}/* $sk/sk_gpu
+    chmod -R 755 $sk/sk_gpu/tools/linux_x64/*
+    export DEP_SK_GPU_SOURCE=$sk/sk_gpu
+    export LD_LIBRARY_PATH="${stdenv.cc.cc.lib}/lib";
+                    patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
+                      --set-rpath "${libPath}" \
+                    $sk/sk_gpu/tools/linux_x64/skshaderc
+  '';
+  nativeBuildInputs = [ cmake pkg-config llvmPackages.libcxxClang ];
+  buildInputs = [
+    libGL
+    mesa
+    xorg.libX11.dev
+    xorg.libXft
+    xorg.libXfixes
+    fontconfig
+    libxkbcommon
+    libXau
+    libXdmcp
+    openxr-loader
+  ];
+  LIBCLANG_PATH = "${libclang.lib}/lib";
+}

src/core/client.rs

@@ -1,136 +1,245 @@
-use super::{eventloop::EventLoop, scenegraph::Scenegraph};
-use crate::{
-	core::registry::Registry,
-	nodes::{data, drawable, fields, hmd, input, items, root::Root, spatial, startup, Node},
+use super::{
+	client_state::{ClientStateParsed, CLIENT_STATES},
+	destroy_queue,
+	scenegraph::Scenegraph,
 };
-use anyhow::{anyhow, Result};
+use crate::{
+	core::{registry::OwnedRegistry, task},
+	nodes::{
+		audio, data, drawable, fields, input, items,
+		root::{ClientState, Root},
+		spatial, Node,
+	},
+};
+use color_eyre::eyre::{eyre, Result};
+use global_counter::primitive::exact::CounterU32;
 use lazy_static::lazy_static;
 use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
-use stardust_xr::messenger::Messenger;
-use std::{
-	path::PathBuf,
-	sync::{Arc, Weak},
-};
-use tokio::{net::UnixStream, sync::Notify, task::JoinHandle};
+use rustc_hash::FxHashMap;
+use stardust_xr::messenger::{self, MessageSenderHandle};
+use std::{fmt::Debug, fs, iter::FromIterator, path::PathBuf, sync::Arc};
+use tokio::{net::UnixStream, task::JoinHandle};
+use tracing::info;
 
 lazy_static! {
-	pub static ref CLIENTS: Registry<Client> = Registry::new();
+	pub static ref CLIENTS: OwnedRegistry<Client> = OwnedRegistry::new();
 	pub static ref INTERNAL_CLIENT: Arc<Client> = CLIENTS.add(Client {
-		event_loop: Weak::new(),
-		index: 0,
+		pid: None,
+		// env: None,
+		exe: None,
 
-		stop_notifier: Default::default(),
-		join_handle: OnceCell::new(),
+		dispatch_join_handle: OnceCell::new(),
+		flush_join_handle: OnceCell::new(),
+		disconnect_status: OnceCell::new(),
 
-		messenger: None,
+		message_sender_handle: None,
+		id_counter: CounterU32::new(0),
 		scenegraph: Default::default(),
 		root: OnceCell::new(),
 		base_resource_prefixes: Default::default(),
+		state: OnceCell::default(),
 	});
 }
 
-pub struct Client {
-	event_loop: Weak<EventLoop>,
-	index: usize,
-	stop_notifier: Arc<Notify>,
-	join_handle: OnceCell<JoinHandle<Result<()>>>,
+pub fn get_env(pid: i32) -> Result<FxHashMap<String, String>, std::io::Error> {
+	let env = fs::read_to_string(format!("/proc/{pid}/environ"))?;
+	Ok(FxHashMap::from_iter(
+		env.split('\0')
+			.filter_map(|var| var.split_once('='))
+			.map(|(k, v)| (k.to_string(), v.to_string())),
+	))
+}
+pub fn state(env: &FxHashMap<String, String>) -> Option<Arc<ClientStateParsed>> {
+	let token = env.get("STARDUST_STARTUP_TOKEN")?;
+	CLIENT_STATES.lock().get(token).cloned()
+}
 
-	pub messenger: Option<Messenger>,
-	pub scenegraph: Scenegraph,
+pub struct Client {
+	pub pid: Option<i32>,
+	// env: Option<FxHashMap<String, String>>,
+	exe: Option<PathBuf>,
+	dispatch_join_handle: OnceCell<JoinHandle<Result<()>>>,
+	flush_join_handle: OnceCell<JoinHandle<Result<()>>>,
+	disconnect_status: OnceCell<Result<()>>,
+
+	id_counter: CounterU32,
+	pub message_sender_handle: Option<MessageSenderHandle>,
+	pub scenegraph: Arc<Scenegraph>,
 	pub root: OnceCell<Arc<Root>>,
 	pub base_resource_prefixes: Mutex<Vec<PathBuf>>,
+	pub state: OnceCell<ClientState>,
 }
 impl Client {
-	pub fn from_connection(
-		index: usize,
-		event_loop: &Arc<EventLoop>,
-		connection: UnixStream,
-	) -> Arc<Self> {
-		println!("New client connected");
-		let client = CLIENTS.add(Client {
-			event_loop: Arc::downgrade(event_loop),
-			index,
-			stop_notifier: Default::default(),
-			join_handle: OnceCell::new(),
+	pub fn from_connection(connection: UnixStream) -> Result<Arc<Self>> {
+		let pid = connection.peer_cred().ok().and_then(|c| c.pid());
+		let env = pid.and_then(|pid| get_env(pid).ok());
+		let exe = pid.and_then(|pid| fs::read_link(format!("/proc/{}/exe", pid)).ok());
+		info!(
+			pid,
+			exe = exe
+				.as_ref()
+				.and_then(|exe| exe.to_str().map(|s| s.to_string())),
+			"New client connected"
+		);
 
-			messenger: Some(Messenger::new(
-				tokio::runtime::Handle::current(),
-				connection,
-			)),
-			scenegraph: Default::default(),
+		let (mut messenger_tx, mut messenger_rx) = messenger::create(connection);
+		let scenegraph = Arc::new(Scenegraph::default());
+		let state = env
+			.as_ref()
+			.and_then(state)
+			.unwrap_or_else(|| Arc::new(ClientStateParsed::default()));
+
+		let client = CLIENTS.add(Client {
+			pid,
+			// env,
+			exe: exe.clone(),
+
+			dispatch_join_handle: OnceCell::new(),
+			flush_join_handle: OnceCell::new(),
+			disconnect_status: OnceCell::new(),
+
+			id_counter: CounterU32::new(256),
+			message_sender_handle: Some(messenger_tx.handle()),
+			scenegraph: scenegraph.clone(),
 			root: OnceCell::new(),
 			base_resource_prefixes: Default::default(),
+			state: OnceCell::default(),
 		});
 		let _ = client.scenegraph.client.set(Arc::downgrade(&client));
-		let _ = client.root.set(Root::create(&client));
-		hmd::make_alias(&client);
-		spatial::create_interface(&client);
-		fields::create_interface(&client);
-		drawable::create_interface(&client);
-		data::create_interface(&client);
-		items::create_interface(&client);
-		input::create_interface(&client);
-		startup::create_interface(&client);
+		let _ = client.root.set(Root::create(&client, state.root)?);
+		spatial::create_interface(&client)?;
+		fields::create_interface(&client)?;
+		drawable::create_interface(&client)?;
+		audio::create_interface(&client)?;
+		data::create_interface(&client)?;
+		input::create_interface(&client)?;
+		items::camera::create_interface(&client)?;
+		items::panel::create_interface(&client)?;
 
-		let _ = client.join_handle.set(tokio::spawn({
-			let client = client.clone();
-			async move {
-				let dispatch_loop = async {
-					loop {
-						client.dispatch().await?
-					}
-				};
-				let flush_loop = async {
-					loop {
-						client.flush().await?
-					}
-				};
+		let _ = client.state.set(state.apply_to(&client));
 
-				let result = tokio::select! {
-					_ = client.stop_notifier.notified() => Ok(()),
-					e = dispatch_loop => e,
-					e = flush_loop => e,
-				};
-				client.disconnect().await;
-				result
-			}
-		}));
-		client
+		let pid_printable = pid
+			.map(|pid| pid.to_string())
+			.unwrap_or_else(|| "??".to_string());
+		let exe_printable = exe
+			.and_then(|exe| {
+				exe.file_name()
+					.and_then(|exe| exe.to_str())
+					.map(|exe| exe.to_string())
+			})
+			.unwrap_or_else(|| "??".to_string());
+		let _ = client.dispatch_join_handle.get_or_try_init(|| {
+			task::new(
+				|| {
+					format!(
+						"client dispatch pid={} exe={}",
+						&pid_printable, &exe_printable,
+					)
+				},
+				{
+					let client = client.clone();
+					async move {
+						loop {
+							if let Err(e) = messenger_rx.dispatch(&*scenegraph).await {
+								client.disconnect(Err(e.into()));
+							}
+						}
+					}
+				},
+			)
+		});
+		let _ = client.flush_join_handle.get_or_try_init(|| {
+			task::new(
+				|| format!("client flush pid={} exe={}", &pid_printable, &exe_printable,),
+				{
+					let client = client.clone();
+					async move {
+						loop {
+							if let Err(e) = messenger_tx.flush().await {
+								client.disconnect(Err(e.into()));
+							}
+						}
+					}
+				},
+			)
+		});
+
+		Ok(client)
+	}
+
+	pub fn get_cmdline(&self) -> Option<Vec<String>> {
+		let pid = self.pid?;
+		let exe_proc_path = format!("/proc/{pid}/exe");
+		let cmdline_proc_path = format!("/proc/{pid}/cmdline");
+		let exe = std::fs::read_link(exe_proc_path).ok()?;
+		let cmdline = std::fs::read_to_string(cmdline_proc_path).ok()?;
+		let mut cmdline_split: Vec<_> = cmdline.split('\0').map(ToString::to_string).collect();
+		cmdline_split.pop();
+		*cmdline_split.get_mut(0).unwrap() = exe.to_str()?.to_string();
+		Some(cmdline_split)
+	}
+	pub fn get_cwd(&self) -> Option<PathBuf> {
+		let pid = self.pid?;
+		let cwd_proc_path = format!("/proc/{pid}/cwd");
+		std::fs::read_link(cwd_proc_path).ok()
+	}
+	pub async fn save_state(&self) -> Option<ClientStateParsed> {
+		let internal = self.root.get()?.save_state().await.ok()?;
+		Some(ClientStateParsed::from_deserialized(self, internal))
+	}
+
+	pub fn generate_id(&self) -> u64 {
+		self.id_counter.inc() as u64
 	}
 
 	#[inline]
-	pub fn get_node(&self, name: &'static str, path: &str) -> Result<Arc<Node>> {
+	pub fn get_node(&self, name: &'static str, id: u64) -> Result<Arc<Node>> {
 		self.scenegraph
-			.get_node(path)
-			.ok_or_else(|| anyhow!("{} not found", name))
+			.get_node(id)
+			.ok_or_else(|| eyre!("{} not found", name))
 	}
 
-	pub async fn dispatch(&self) -> Result<(), std::io::Error> {
-		match &self.messenger {
-			Some(messenger) => messenger.dispatch(&self.scenegraph).await,
-			None => Err(std::io::Error::from(std::io::ErrorKind::Unsupported)),
+	pub fn disconnect(&self, reason: Result<()>) {
+		let _ = self.disconnect_status.set(reason);
+		if let Some(dispatch_join_handle) = self.dispatch_join_handle.get() {
+			dispatch_join_handle.abort();
+		}
+		if let Some(flush_join_handle) = self.flush_join_handle.get() {
+			flush_join_handle.abort();
+		}
+		if let Some(client) = CLIENTS.remove(self) {
+			destroy_queue::add(client);
 		}
 	}
-
-	pub async fn flush(&self) -> Result<(), std::io::Error> {
-		match &self.messenger {
-			Some(messenger) => messenger.flush().await,
-			None => Err(std::io::Error::from(std::io::ErrorKind::Unsupported)),
-		}
-	}
-
-	pub async fn disconnect(&self) {
-		self.stop_notifier.notify_one();
-		if let Some(event_loop) = self.event_loop.upgrade() {
-			event_loop.clients.lock().await.remove(self.index);
-		}
+}
+impl Debug for Client {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		f.debug_struct("Client")
+			.field("pid", &self.pid)
+			.field("exe", &self.exe)
+			.field("dispatch_join_handle", &self.dispatch_join_handle)
+			.field("flush_join_handle", &self.flush_join_handle)
+			.field("disconnect_status", &self.disconnect_status)
+			.field("base_resource_prefixes", &self.base_resource_prefixes)
+			.field("state", &self.state)
+			.finish()
 	}
 }
 impl Drop for Client {
 	fn drop(&mut self) {
-		self.stop_notifier.notify_one();
-		CLIENTS.remove(self);
-		println!("Client disconnected");
+		info!(
+			pid = self.pid,
+			exe = self
+				.exe
+				.as_ref()
+				.and_then(|exe| exe.to_str().map(|s| s.to_string())),
+			disconnect_status = match self.disconnect_status.take() {
+				Some(Ok(_)) => "Graceful disconnect".to_string(),
+				Some(Err(e)) => format!("Error: {}", e.root_cause()),
+				None => "Unknown".to_string(),
+			},
+			"Client disconnected"
+		);
 	}
 }

src/core/client_state.rs

@@ -0,0 +1,119 @@
+use super::client::{get_env, Client};
+use crate::nodes::{root::ClientState, spatial::Spatial, Node};
+use glam::Mat4;
+use parking_lot::Mutex;
+use rustc_hash::FxHashMap;
+use serde::{Deserialize, Serialize};
+use std::{
+	path::{Path, PathBuf},
+	process::Command,
+	sync::Arc,
+};
+
+lazy_static::lazy_static! {
+	pub static ref CLIENT_STATES: Mutex<FxHashMap<String, Arc<ClientStateParsed>>> = Default::default();
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct LaunchInfo {
+	pub cmdline: Vec<String>,
+	pub cwd: PathBuf,
+	pub env: FxHashMap<String, String>,
+}
+impl LaunchInfo {
+	fn from_client(client: &Client) -> Option<Self> {
+		Some(LaunchInfo {
+			cmdline: client.get_cmdline()?,
+			cwd: client.get_cwd()?,
+			env: get_env(client.pid?).ok()?,
+		})
+	}
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct ClientStateParsed {
+	pub launch_info: Option<LaunchInfo>,
+	pub data: Vec<u8>,
+	pub root: Mat4,
+	pub spatial_anchors: FxHashMap<String, Mat4>,
+}
+impl ClientStateParsed {
+	pub fn from_deserialized(client: &Client, state: ClientState) -> Self {
+		ClientStateParsed {
+			launch_info: LaunchInfo::from_client(client),
+			data: state.data.unwrap_or_default(),
+			root: Self::spatial_transform(client, state.root).unwrap_or_default(),
+			spatial_anchors: state
+				.spatial_anchors
+				.into_iter()
+				.filter_map(|(k, v)| Some((k, Self::spatial_transform(client, v)?)))
+				.collect(),
+		}
+	}
+	fn spatial_transform(client: &Client, id: u64) -> Option<Mat4> {
+		let node = client.scenegraph.get_node(id)?;
+		let spatial = node.get_aspect::<Spatial>().ok()?;
+		Some(spatial.global_transform())
+	}
+
+	pub fn token(self) -> String {
+		let token = nanoid::nanoid!();
+		CLIENT_STATES.lock().insert(token.clone(), Arc::new(self));
+		token
+	}
+	pub fn from_file(file: &Path) -> Option<Self> {
+		let file_string = std::fs::read_to_string(file).ok()?;
+		toml::from_str(&file_string).ok()
+	}
+	pub fn to_file(&self, directory: &Path) {
+		let app_name = self
+			.launch_info
+			.as_ref()
+			.map(|l| l.cmdline.first().unwrap().split('/').last().unwrap())
+			.unwrap_or("unknown");
+		let state_file_path = directory
+			.join(format!("{app_name}-{}", nanoid::nanoid!()))
+			.with_extension("toml");
+
+		std::fs::write(state_file_path, toml::to_string(&self).unwrap()).unwrap();
+	}
+
+	pub fn apply_to(&self, client: &Arc<Client>) -> ClientState {
+		if let Some(root) = client.root.get() {
+			root.set_transform(self.root)
+		}
+		ClientState {
+			data: Some(self.data.clone()),
+			root: 0,
+			spatial_anchors: self
+				.spatial_anchors
+				.iter()
+				.map(|(k, v)| {
+					let node = Node::generate(client, true).add_to_scenegraph().unwrap();
+					Spatial::add_to(&node, None, *v, false);
+					(k.clone(), node.get_id())
+				})
+				.collect(),
+		}
+	}
+	pub fn launch_command(self) -> Option<Command> {
+		let launch_info = self.launch_info.as_ref()?;
+		let mut cmdline = launch_info.cmdline.iter();
+		let mut command = Command::new(cmdline.next()?);
+		command.args(cmdline);
+		command.current_dir(&launch_info.cwd);
+		command.envs(launch_info.env.iter());
+		command.env("STARDUST_STARTUP_TOKEN", self.token());
+		Some(command)
+	}
+}
+impl Default for ClientStateParsed {
+	fn default() -> Self {
+		Self {
+			launch_info: None,
+			data: Default::default(),
+			root: Mat4::IDENTITY,
+			spatial_anchors: Default::default(),
+		}
+	}
+}

src/core/delta.rs

@@ -0,0 +1,47 @@
+use std::ops::{Deref, DerefMut};
+
+#[derive(Debug)]
+pub struct Delta<T> {
+	value: T,
+	changed: bool,
+}
+#[allow(dead_code)]
+impl<T> Delta<T> {
+	pub const fn new(value: T) -> Self {
+		Delta {
+			value,
+			changed: false,
+		}
+	}
+	pub fn peek_delta(&self) -> Option<&T> {
+		self.changed.then_some(&self.value)
+	}
+	pub fn delta(&mut self) -> Option<&mut T> {
+		let delta = self.changed.then_some(&mut self.value);
+		self.changed = false;
+		delta
+	}
+	pub fn mark_changed(&mut self) {
+		self.changed = true;
+	}
+	pub const fn value(&self) -> &T {
+		&self.value
+	}
+	pub fn value_mut(&mut self) -> &mut T {
+		self.mark_changed();
+		&mut self.value
+	}
+}
+impl<T> Deref for Delta<T> {
+	type Target = T;
+
+	fn deref(&self) -> &Self::Target {
+		&self.value
+	}
+}
+impl<T> DerefMut for Delta<T> {
+	fn deref_mut(&mut self) -> &mut Self::Target {
+		self.mark_changed();
+		&mut self.value
+	}
+}

src/core/destroy_queue.rs

@@ -1,12 +1,24 @@
+use once_cell::sync::Lazy;
 use parking_lot::Mutex;
 use std::any::Any;
+use tokio::sync::mpsc::{self, unbounded_channel};
 
-static MAIN_DESTROY_QUEUE: Mutex<Vec<Box<dyn Any + Send + Sync>>> = Mutex::new(Vec::new());
+type Anything = Box<dyn Any + Send + Sync>;
+
+static MAIN_DESTROY_QUEUE: Lazy<(
+	mpsc::UnboundedSender<Anything>,
+	Mutex<mpsc::UnboundedReceiver<Anything>>,
+)> = Lazy::new(|| {
+	let (tx, rx) = unbounded_channel();
+	(tx, Mutex::new(rx))
+});
 
 pub fn add<T: Any + Sync + Send>(thing: T) {
-	MAIN_DESTROY_QUEUE.lock().push(Box::new(thing));
+	MAIN_DESTROY_QUEUE.0.send(Box::new(thing)).unwrap();
 }
 
 pub fn clear() {
-	MAIN_DESTROY_QUEUE.lock().clear();
+	while let Ok(thing) = MAIN_DESTROY_QUEUE.1.lock().try_recv() {
+		drop(thing)
+	}
 }

src/core/eventloop.rs

@@ -1,61 +0,0 @@
-use super::client::Client;
-use anyhow::Result;
-use slab::Slab;
-use stardust_xr::server;
-use std::sync::atomic::AtomicU64;
-use std::sync::Arc;
-use tokio::net::UnixListener;
-use tokio::sync::{Mutex, Notify};
-use tokio::task::JoinHandle;
-
-pub static FRAME: AtomicU64 = AtomicU64::new(0);
-
-pub struct EventLoop {
-	pub socket_path: String,
-	stop_notifier: Arc<Notify>,
-	pub clients: Mutex<Slab<Arc<Client>>>,
-}
-
-impl EventLoop {
-	pub fn new() -> Result<(Arc<Self>, JoinHandle<Result<()>>)> {
-		let socket_path = server::get_free_socket_path()
-			.ok_or_else(|| std::io::Error::from(std::io::ErrorKind::Other))?;
-		let socket = UnixListener::bind(socket_path.clone())?;
-
-		let event_loop = Arc::new(EventLoop {
-			socket_path,
-			stop_notifier: Default::default(),
-			clients: Mutex::new(Slab::new()),
-		});
-
-		let event_loop_join_handle = tokio::spawn({
-			let event_loop = event_loop.clone();
-			async move { EventLoop::event_loop(socket, event_loop).await }
-		});
-
-		Ok((event_loop, event_loop_join_handle))
-	}
-
-	async fn event_loop(socket: UnixListener, event_loop: Arc<EventLoop>) -> Result<()> {
-		let event_loop_async = async {
-			loop {
-				let (socket, _) = socket.accept().await?;
-				let mut clients = event_loop.clients.lock().await;
-				let vacant_client = clients.vacant_entry();
-				let idx = vacant_client.key();
-				vacant_client.insert(Client::from_connection(idx, &event_loop, socket));
-			}
-		};
-
-		tokio::select! {
-			_ = event_loop.stop_notifier.notified() => Ok(()),
-			e = event_loop_async => e,
-		}
-	}
-}
-
-impl Drop for EventLoop {
-	fn drop(&mut self) {
-		self.stop_notifier.notify_one();
-	}
-}

src/core/idl_utils.rs

@@ -0,0 +1,11 @@
+#[macro_export]
+macro_rules! create_interface {
+	($iface:ident) => {
+		pub fn create_interface(client: &Arc<Client>) -> Result<()> {
+			let node = Node::from_id(client, INTERFACE_NODE_ID, false);
+			<$iface as self::InterfaceAspect>::add_node_members(&node);
+			node.add_to_scenegraph()?;
+			Ok(())
+		}
+	};
+}

src/core/mod.rs

@@ -1,7 +1,9 @@
 pub mod client;
+pub mod client_state;
+pub mod delta;
 pub mod destroy_queue;
-pub mod eventloop;
-pub mod nodelist;
+pub mod idl_utils;
 pub mod registry;
 pub mod resource;
 pub mod scenegraph;
+pub mod task;

src/core/nodelist.rs

@@ -1,29 +0,0 @@
-use crate::nodes::Node;
-use parking_lot::Mutex;
-use std::sync::Weak;
-
-#[derive(Default)]
-pub struct LifeLinkedNodeList {
-	nodes: Mutex<Vec<Weak<Node>>>,
-}
-impl LifeLinkedNodeList {
-	pub fn add(&self, node: Weak<Node>) {
-		self.nodes.lock().push(node);
-	}
-
-	pub fn clear(&self) {
-		self.nodes
-			.lock()
-			.iter()
-			.filter_map(|node| node.upgrade())
-			.for_each(|node| {
-				node.destroy();
-			});
-		self.nodes.lock().clear();
-	}
-}
-impl Drop for LifeLinkedNodeList {
-	fn drop(&mut self) {
-		self.clear();
-	}
-}

src/core/registry.rs

@@ -1,17 +1,19 @@
 #![allow(dead_code)]
 
+use parking_lot::{const_mutex, MappedMutexGuard, Mutex, MutexGuard};
+use rustc_hash::FxHashMap;
 use std::ptr;
 use std::sync::{Arc, Weak};
 
-use once_cell::sync::Lazy;
-use parking_lot::Mutex;
-use rustc_hash::FxHashMap;
-
-pub struct Registry<T: Send + Sync + ?Sized>(Lazy<Mutex<FxHashMap<usize, Weak<T>>>>);
+#[derive(Debug)]
+pub struct Registry<T: Send + Sync + ?Sized>(Mutex<Option<FxHashMap<usize, Weak<T>>>>);
 
 impl<T: Send + Sync + ?Sized> Registry<T> {
 	pub const fn new() -> Self {
-		Registry(Lazy::new(|| Mutex::new(FxHashMap::default())))
+		Registry(const_mutex(None))
+	}
+	fn lock(&self) -> MappedMutexGuard<FxHashMap<usize, Weak<T>>> {
+		MutexGuard::map(self.0.lock(), |r| r.get_or_insert_with(FxHashMap::default))
 	}
 	pub fn add(&self, t: T) -> Arc<T>
 	where
@@ -22,23 +24,131 @@ impl<T: Send + Sync + ?Sized> Registry<T> {
 		t_arc
 	}
 	pub fn add_raw(&self, t: &Arc<T>) {
-		self.0
-			.lock()
+		self.lock()
 			.insert(Arc::as_ptr(t) as *const () as usize, Arc::downgrade(t));
 	}
+	pub fn contains(&self, t: &T) -> bool {
+		self.lock()
+			.contains_key(&(ptr::addr_of!(*t) as *const () as usize))
+	}
+	pub fn get_changes(old: &Registry<T>, new: &Registry<T>) -> (Vec<Arc<T>>, Vec<Arc<T>>) {
+		let old = old.lock();
+		let new = new.lock();
+
+		let mut added = Vec::new();
+		let mut removed = Vec::new();
+
+		for (id, entry) in new.iter() {
+			if let Some(entry) = entry.upgrade() {
+				if !old.contains_key(id) {
+					added.push(entry);
+				}
+			}
+		}
+		for (id, entry) in old.iter() {
+			if let Some(entry) = entry.upgrade() {
+				if !new.contains_key(id) {
+					removed.push(entry);
+				}
+			}
+		}
+		(added, removed)
+	}
 	pub fn get_valid_contents(&self) -> Vec<Arc<T>> {
-		self.0
-			.lock()
+		self.lock()
 			.iter()
 			.filter_map(|pair| pair.1.upgrade())
 			.collect()
 	}
-	pub fn remove(&self, t: &T) {
+	pub fn set(&self, other: &Registry<T>) {
+		self.lock().clone_from(&other.lock());
+	}
+	pub fn take_valid_contents(&self) -> Vec<Arc<T>> {
 		self.0
 			.lock()
+			.take()
+			.unwrap_or_default()
+			.into_iter()
+			.filter_map(|pair| pair.1.upgrade())
+			.collect()
+	}
+	pub fn retain<F: Fn(&Arc<T>) -> bool>(&self, f: F) {
+		self.lock().retain(|_, v| {
+			let Some(v) = v.upgrade() else {
+				return true;
+			};
+			(f)(&v)
+		})
+	}
+	pub fn remove(&self, t: &T) {
+		self.lock()
 			.remove(&(ptr::addr_of!(*t) as *const () as usize));
 	}
 	pub fn clear(&self) {
-		self.0.lock().clear();
+		self.lock().clear();
+	}
+	pub fn is_empty(&self) -> bool {
+		let registry = self.0.lock();
+		let Some(registry) = &*registry else {
+			return true;
+		};
+		if registry.is_empty() {
+			return true;
+		}
+		registry.values().all(|v| v.strong_count() == 0)
+	}
+}
+impl<T: Send + Sync + ?Sized> Clone for Registry<T> {
+	fn clone(&self) -> Self {
+		Self(Mutex::new(self.0.lock().clone()))
+	}
+}
+impl<T: Send + Sync + ?Sized> Default for Registry<T> {
+	fn default() -> Self {
+		Self::new()
+	}
+}
+
+pub struct OwnedRegistry<T: Send + Sync + ?Sized>(Mutex<Option<FxHashMap<usize, Arc<T>>>>);
+
+impl<T: Send + Sync + ?Sized> OwnedRegistry<T> {
+	pub const fn new() -> Self {
+		OwnedRegistry(const_mutex(None))
+	}
+	fn lock(&self) -> MappedMutexGuard<FxHashMap<usize, Arc<T>>> {
+		MutexGuard::map(self.0.lock(), |r| r.get_or_insert_with(FxHashMap::default))
+	}
+	pub fn add(&self, t: T) -> Arc<T>
+	where
+		T: Sized,
+	{
+		let t_arc = Arc::new(t);
+		self.add_raw(t_arc.clone());
+		t_arc
+	}
+	pub fn add_raw(&self, t: Arc<T>) {
+		self.lock().insert(Arc::as_ptr(&t) as *const () as usize, t);
+	}
+	pub fn get_vec(&self) -> Vec<Arc<T>> {
+		self.lock().values().cloned().collect::<Vec<_>>()
+	}
+	pub fn contains(&self, t: &T) -> bool {
+		self.lock()
+			.contains_key(&(ptr::addr_of!(*t) as *const () as usize))
+	}
+	pub fn remove(&self, t: &T) -> Option<Arc<T>>
+	where
+		T: Sized,
+	{
+		self.lock()
+			.remove(&(ptr::addr_of!(*t) as *const () as usize))
+	}
+	pub fn clear(&self) {
+		self.lock().clear();
+	}
+}
+impl<T: Send + Sync + ?Sized> Clone for OwnedRegistry<T> {
+	fn clone(&self) -> Self {
+		Self(Mutex::new(self.0.lock().clone()))
 	}
 }

src/core/resource.rs

@@ -1,71 +1,49 @@
-use anyhow::anyhow;
-use serde::{de::Visitor, Deserialize};
-use std::path::PathBuf;
+use stardust_xr::values::ResourceID;
+use std::{
+	ffi::OsStr,
+	path::{Path, PathBuf},
+};
 
-pub enum ResourceID {
-	File(PathBuf),
-	Namespaced { namespace: String, path: PathBuf },
+use super::client::Client;
+
+lazy_static::lazy_static! {
+	static ref THEMES: Vec<PathBuf> = std::env::var("STARDUST_THEMES").map(|s| s.split(':').map(PathBuf::from).collect()).unwrap_or_default();
 }
-impl ResourceID {
-	pub fn get_file(&self, prefixes: &[PathBuf]) -> Option<PathBuf> {
-		match self {
-			ResourceID::File(file) => (file.is_absolute() && file.exists()).then_some(file.clone()),
-			ResourceID::Namespaced { namespace, path } => {
-				for prefix in prefixes {
-					let mut test_path = prefix.clone();
-					test_path.push(namespace.clone());
-					test_path.push(path.clone());
 
-					if test_path.as_path().exists() {
-						return Some(test_path);
-					}
-				}
-				None
-			}
+fn has_extension(path: &Path, extensions: &[&OsStr]) -> bool {
+	if let Some(path_extension) = path.extension() {
+		extensions.contains(&path_extension)
+	} else {
+		false
+	}
+}
+
+pub fn get_resource_file(
+	resource: &ResourceID,
+	client: &Client,
+	extensions: &[&OsStr],
+) -> Option<PathBuf> {
+	match resource {
+		ResourceID::Direct(file) => {
+			(file.is_absolute() && file.exists() && has_extension(file, extensions))
+				.then_some(file.clone())
+		}
+		ResourceID::Namespaced { namespace, path } => {
+			let file_name = path.file_name()?;
+			let base_prefixes = client.base_resource_prefixes.lock().clone();
+			THEMES
+				.iter()
+				.chain(base_prefixes.iter())
+				.filter_map(|prefix| {
+					let prefixed_path = prefix.clone().join(namespace).join(path);
+					let parent = prefixed_path.parent()?;
+					std::fs::read_dir(parent).ok()
+				})
+				.flatten()
+				.filter_map(|item| item.ok())
+				.map(|dir_entry| dir_entry.path())
+				.filter(|path| path.file_stem() == Some(file_name))
+				.find(|path| has_extension(path, extensions))
 		}
 	}
 }
-impl<'de> Deserialize<'de> for ResourceID {
-	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-	where
-		D: serde::Deserializer<'de>,
-	{
-		deserializer.deserialize_any(ResourceVisitor)
-	}
-}
-
-struct ResourceVisitor;
-impl<'de> Visitor<'de> for ResourceVisitor {
-	type Value = ResourceID;
-
-	fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
-		formatter.write_str("A string containing an absolute path to file or \"[namespace]:[path]\" for a namespaced resource")
-	}
-
-	fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
-	where
-		E: serde::de::Error,
-	{
-		Ok(if v.starts_with('/') {
-			let path = PathBuf::from(v);
-			path.metadata().map_err(serde::de::Error::custom)?;
-			ResourceID::File(path)
-		} else if let Some((namespace, path)) = v.split_once(':') {
-			ResourceID::Namespaced {
-				namespace: namespace.to_string(),
-				path: PathBuf::from(path),
-			}
-		} else {
-			return Err(serde::de::Error::custom(anyhow!(
-				"Invalid format for string"
-			)));
-		})
-	}
-
-	fn visit_string<E>(self, v: String) -> Result<Self::Value, E>
-	where
-		E: serde::de::Error,
-	{
-		self.visit_str(&v)
-	}
-}

src/core/scenegraph.rs

@@ -1,24 +1,29 @@
-use crate::core::client::Client;
+use crate::nodes::alias::get_original;
 use crate::nodes::Node;
-use anyhow::Result;
+use crate::{core::client::Client, nodes::Message};
+use color_eyre::eyre::Result;
 use once_cell::sync::OnceCell;
+use parking_lot::Mutex;
+use rustc_hash::FxHashMap;
+use serde::Serialize;
 use stardust_xr::scenegraph;
 use stardust_xr::scenegraph::ScenegraphError;
+use stardust_xr::schemas::flex::serialize;
+use std::future::Future;
+use std::os::fd::OwnedFd;
 use std::sync::{Arc, Weak};
-
-use core::hash::BuildHasherDefault;
-use dashmap::DashMap;
-use rustc_hash::FxHasher;
+use tokio::sync::oneshot;
+use tracing::{debug, debug_span};
 
 #[derive(Default)]
 pub struct Scenegraph {
 	pub(super) client: OnceCell<Weak<Client>>,
-	nodes: DashMap<String, Arc<Node>, BuildHasherDefault<FxHasher>>,
+	nodes: Mutex<FxHashMap<u64, Arc<Node>>>,
 }
 
 impl Scenegraph {
-	pub fn get_client(&self) -> Arc<Client> {
-		self.client.get().unwrap().upgrade().unwrap()
+	pub fn get_client(&self) -> Option<Arc<Client>> {
+		self.client.get()?.upgrade()
 	}
 
 	pub fn add_node(&self, node: Node) -> Arc<Node> {
@@ -27,38 +32,106 @@ impl Scenegraph {
 		node_arc
 	}
 	pub fn add_node_raw(&self, node: Arc<Node>) {
-		let path = node.get_path().to_string();
-		self.nodes.insert(path, node);
+		debug!(node = ?&*node, "Add node");
+		self.nodes.lock().insert(node.get_id(), node);
 	}
 
-	pub fn get_node(&self, path: &str) -> Option<Arc<Node>> {
-		let mut node = self.nodes.get(path)?.clone();
-		if let Some(alias) = node.alias.get() {
-			node = alias.original.upgrade()?;
-		}
-		Some(node)
+	pub fn get_node(&self, node: u64) -> Option<Arc<Node>> {
+		let node = self.nodes.lock().get(&node)?.clone();
+		get_original(node, true)
 	}
 
-	pub fn remove_node(&self, path: &str) -> Option<Arc<Node>> {
-		let (_, node) = self.nodes.remove(path)?;
-		Some(node)
+	pub fn remove_node(&self, node: u64) -> Option<Arc<Node>> {
+		debug!(node, "Remove node");
+		self.nodes.lock().remove(&node)
 	}
 }
 
+pub type MethodResponse = Result<(Vec<u8>, Vec<OwnedFd>), ScenegraphError>;
+pub struct MethodResponseSender(oneshot::Sender<MethodResponse>);
+impl MethodResponseSender {
+	pub fn send(self, t: Result<Message, ScenegraphError>) {
+		let _ = self.0.send(t.map(|m| (m.data, m.fds)));
+	}
+	// pub fn send_method_return<T: Serialize>(
+	// 	self,
+	// 	result: color_eyre::eyre::Result<(T, Vec<OwnedFd>)>,
+	// ) {
+	// 	let _ = self.0.send(map_method_return(result));
+	// }
+	pub fn wrap_sync<F: FnOnce() -> color_eyre::eyre::Result<Message>>(self, f: F) {
+		self.send(f().map_err(|e| ScenegraphError::MethodError {
+			error: e.to_string(),
+		}))
+	}
+	pub fn wrap_async<T: Serialize>(
+		self,
+		f: impl Future<Output = color_eyre::eyre::Result<(T, Vec<OwnedFd>)>> + Send + 'static,
+	) {
+		tokio::task::spawn(async move { self.0.send(map_method_return(f.await)) });
+	}
+}
+fn map_method_return<T: Serialize>(
+	result: color_eyre::eyre::Result<(T, Vec<OwnedFd>)>,
+) -> Result<(Vec<u8>, Vec<OwnedFd>), ScenegraphError> {
+	let (value, fds) = result.map_err(|e| ScenegraphError::MethodError {
+		error: e.to_string(),
+	})?;
+
+	let serialized_value = serialize(value).map_err(|e| ScenegraphError::MethodError {
+		error: format!("Internal: Serialization failed: {e}"),
+	})?;
+	Ok((serialized_value, fds))
+}
 impl scenegraph::Scenegraph for Scenegraph {
-	fn send_signal(&self, path: &str, method: &str, data: &[u8]) -> Result<(), ScenegraphError> {
-		self.get_node(path)
-			.ok_or(ScenegraphError::NodeNotFound)?
-			.send_local_signal(self.get_client(), method, data)
+	fn send_signal(
+		&self,
+		node: u64,
+		method: u64,
+		data: &[u8],
+		fds: Vec<OwnedFd>,
+	) -> Result<(), ScenegraphError> {
+		let Some(client) = self.get_client() else {
+			return Err(ScenegraphError::SignalNotFound);
+		};
+		debug_span!("Handle signal", node, method).in_scope(|| {
+			self.get_node(node)
+				.ok_or(ScenegraphError::NodeNotFound)?
+				.send_local_signal(
+					client,
+					method,
+					Message {
+						data: data.to_vec(),
+						fds,
+					},
+				)
+		})
 	}
 	fn execute_method(
 		&self,
-		path: &str,
-		method: &str,
+		node: u64,
+		method: u64,
 		data: &[u8],
-	) -> Result<Vec<u8>, ScenegraphError> {
-		self.get_node(path)
-			.ok_or(ScenegraphError::NodeNotFound)?
-			.execute_local_method(self.get_client(), method, data)
+		fds: Vec<OwnedFd>,
+		response: oneshot::Sender<Result<(Vec<u8>, Vec<OwnedFd>), ScenegraphError>>,
+	) {
+		let Some(client) = self.get_client() else {
+			let _ = response.send(Err(ScenegraphError::MethodNotFound));
+			return;
+		};
+		debug!(node, method, "Handle method");
+		let Some(node) = self.get_node(node) else {
+			let _ = response.send(Err(ScenegraphError::NodeNotFound));
+			return;
+		};
+		node.execute_local_method(
+			client,
+			method,
+			Message {
+				data: data.to_vec(),
+				fds,
+			},
+			MethodResponseSender(response),
+		);
 	}
 }

src/core/task.rs

@@ -0,0 +1,22 @@
+use color_eyre::eyre::Result;
+use std::future::Future;
+use tokio::task::JoinHandle;
+
+#[allow(unused_variables)]
+pub fn new<
+	F: FnOnce() -> S,
+	S: AsRef<str>,
+	A: Future<Output = O> + Send + 'static,
+	O: Send + 'static,
+>(
+	name_fn: F,
+	async_future: A,
+) -> Result<JoinHandle<O>> {
+	#[cfg(not(feature = "profile_tokio"))]
+	let result = Ok(tokio::task::spawn(async_future));
+	#[cfg(feature = "profile_tokio")]
+	let result = tokio::task::Builder::new()
+		.name(name_fn().as_ref())
+		.spawn(async_future);
+	result
+}

src/main.rs

@@ -1,172 +1,289 @@
+#![allow(clippy::empty_docs)]
 mod core;
 mod nodes;
 mod objects;
+mod session;
+#[cfg(feature = "wayland")]
 mod wayland;
 
 use crate::core::destroy_queue;
-use crate::nodes::{drawable, hmd, input};
-use crate::objects::input::mouse_pointer::MousePointer;
-use crate::objects::input::sk_controller::SkController;
-use crate::objects::input::sk_hand::SkHand;
-use crate::wayland::Wayland;
+use crate::nodes::items::camera;
+use crate::nodes::{audio, drawable, input};
 
-use self::core::eventloop::EventLoop;
-use anyhow::Result;
 use clap::Parser;
+use core::client::Client;
+use core::task;
 use directories::ProjectDirs;
-use slog::Drain;
+use objects::ServerObjects;
+use once_cell::sync::OnceCell;
+use session::{launch_start, save_session};
+use stardust_xr::server;
+use std::path::PathBuf;
 use std::sync::Arc;
-use stereokit::input::Handed;
-use stereokit::lifecycle::DepthMode;
-use stereokit::render::SphericalHarmonics;
-use stereokit::texture::Texture;
-use stereokit::{lifecycle::DisplayMode, Settings};
-use tokio::{runtime::Handle, sync::oneshot};
+use std::time::Duration;
+use stereokit_rust::material::Material;
+use stereokit_rust::shader::Shader;
+use stereokit_rust::sk::{sk_quit, AppMode, DepthMode, OriginMode, QuitReason, SkSettings};
+use stereokit_rust::system::{LogLevel, Renderer};
+use stereokit_rust::tex::{SHCubemap, Tex, TexFormat, TexType};
+use stereokit_rust::ui::Ui;
+use stereokit_rust::util::{Color128, Time};
+use tokio::net::UnixListener;
+use tokio::sync::Notify;
+use tracing::metadata::LevelFilter;
+use tracing::{debug_span, error, info};
+use tracing_subscriber::{fmt, prelude::*, EnvFilter};
+use zbus::fdo::ObjectManager;
+use zbus::Connection;
 
-#[derive(Parser)]
+#[derive(Debug, Clone, Parser)]
 #[clap(author, version, about, long_about = None)]
 struct CliArgs {
 	/// Force flatscreen mode and use the mouse pointer as a 3D pointer
 	#[clap(short, long, action)]
 	flatscreen: bool,
 
+	/// If monado insists on emulating them, set this flag...we want the raw input
+	#[clap(long)]
+	disable_controllers: bool,
+	/// If monado insists on emulating , set this flag...we want the raw input
+	#[clap(long)]
+	disable_hands: bool,
+
 	/// Run Stardust XR as an overlay with given priority
 	#[clap(id = "PRIORITY", short = 'o', long = "overlay", action)]
 	overlay_priority: Option<u32>,
+
+	/// Debug the clients started by the server
+	#[clap(short = 'd', long = "debug", action)]
+	debug_launched_clients: bool,
+
+	/// Run a script when ready for clients to connect. If this is not set the script at $HOME/.config/stardust/startup will be ran if it exists.
+	#[clap(id = "PATH", short = 'e', long = "execute-startup-script", action)]
+	startup_script: Option<PathBuf>,
+
+	/// Restore the session with the given ID (or `latest`), ignoring the startup script. Sessions are stored in directories at `~/.local/state/stardust/`.
+	#[clap(id = "SESSION_ID", long = "restore", action)]
+	restore: Option<String>,
 }
 
-fn main() -> Result<()> {
-	let project_dirs = ProjectDirs::from("", "", "stardust").unwrap();
-	let cli_args = Arc::new(CliArgs::parse());
-	let log = ::slog::Logger::root(::slog_stdlog::StdLog.fuse(), slog::o!());
-	slog_stdlog::init()?;
-
-	let mut stereokit = Settings::default()
-		.app_name("Stardust XR")
-		.overlay_app(cli_args.overlay_priority.is_some())
-		.overlay_priority(cli_args.overlay_priority.unwrap_or(u32::MAX))
-		.disable_desktop_input_window(true)
-		.display_preference(if cli_args.flatscreen {
-			DisplayMode::Flatscreen
-		} else {
-			DisplayMode::MixedReality
-		})
-		.depth_mode(DepthMode::D32)
-		.init()
-		.expect("StereoKit failed to initialize");
-	println!("Init StereoKit");
-
-	// Skytex/light stuff
-	{
-		let skytex_path = project_dirs.config_dir().join("skytex.hdr");
-		if let Some((tex, light)) = skytex_path
-			.exists()
-			.then(|| Texture::from_cubemap_equirectangular(&stereokit, &skytex_path, true, 100))
-			.flatten()
-		{
-			stereokit.set_skytex(&tex);
-			stereokit.set_skylight(&light);
-		} else if let Some(tex) = Texture::cubemap_from_spherical_harmonics(
-			&stereokit,
-			&SphericalHarmonics::default(),
-			16,
-			0.0,
-			0.0,
-		) {
-			stereokit.set_skytex(&tex);
-		}
-	}
-
-	let mouse_pointer = cli_args.flatscreen.then(MousePointer::new);
-	let mut hands =
-		(!cli_args.flatscreen).then(|| [SkHand::new(Handed::Left), SkHand::new(Handed::Right)]);
-	let mut controllers = (!cli_args.flatscreen).then(|| {
-		[
-			SkController::new(Handed::Left),
-			SkController::new(Handed::Right),
-		]
-	});
-
-	if hands.is_none() {
-		unsafe {
-			stereokit::sys::input_hand_visible(stereokit::sys::handed__handed_left, false as i32);
-			stereokit::sys::input_hand_visible(stereokit::sys::handed__handed_right, false as i32);
-		}
-	}
-
-	let (event_stop_tx, event_stop_rx) = oneshot::channel::<()>();
-	let (handle_sender, handle_receiver) = oneshot::channel::<Handle>();
-	let event_thread = std::thread::Builder::new()
-		.name("event_loop".to_owned())
-		.spawn(move || event_loop(handle_sender, event_stop_rx))?;
-	let _tokio_handle = handle_receiver.blocking_recv()?.enter();
-
-	let mut wayland = Wayland::new(log)?;
-	println!("Stardust ready!");
-	stereokit.run(
-		|sk, draw_ctx| {
-			hmd::frame(sk);
-			wayland.frame(sk);
-			destroy_queue::clear();
-
-			if let Some(mouse_pointer) = &mouse_pointer {
-				mouse_pointer.update(sk);
-			}
-			if let Some(hands) = &mut hands {
-				hands[0].update(sk);
-				hands[1].update(sk);
-			}
-			if let Some(controllers) = &mut controllers {
-				controllers[0].update(sk);
-				controllers[1].update(sk);
-			}
-			input::process_input();
-			nodes::root::Root::logic_step(sk.time_elapsed());
-			drawable::draw(sk, draw_ctx);
-
-			wayland.make_context_current();
-		},
-		|_| {
-			println!("Cleanly shut down StereoKit");
-		},
-	);
-
-	drop(wayland);
-
-	let _ = event_stop_tx.send(());
-	event_thread
-		.join()
-		.expect("Failed to cleanly shut down event loop")?;
-	println!("Cleanly shut down Stardust");
-	Ok(())
-}
+static STARDUST_INSTANCE: OnceCell<String> = OnceCell::new();
 
 // #[tokio::main]
 #[tokio::main(flavor = "current_thread")]
-async fn event_loop(
-	handle_sender: oneshot::Sender<Handle>,
-	stop_rx: oneshot::Receiver<()>,
-) -> anyhow::Result<()> {
-	let _ = handle_sender.send(Handle::current());
-	// console_subscriber::init();
+async fn main() {
+	color_eyre::install().unwrap();
 
-	let (event_loop, event_loop_join_handle) =
-		EventLoop::new().expect("Couldn't create server socket");
-	println!("Init event loop");
-	println!("Stardust socket created at {}", event_loop.socket_path);
+	let registry = tracing_subscriber::registry();
 
-	let result = tokio::select! {
-		biased;
-		_ = tokio::signal::ctrl_c() => Ok(()),
-		_ = stop_rx => Ok(()),
-		e = event_loop_join_handle => e?,
-	};
+	#[cfg(feature = "profile_app")]
+	let registry = registry.with(
+		tracing_tracy::TracyLayer::new(tracing_tracy::DefaultConfig::default())
+			.with_filter(LevelFilter::DEBUG),
+	);
 
-	println!("Cleanly shut down event loop");
+	#[cfg(feature = "profile_tokio")]
+	let (console_layer, _) = console_subscriber::ConsoleLayer::builder().build();
+	#[cfg(feature = "profile_tokio")]
+	let registry = registry.with(console_layer);
 
-	unsafe {
-		stereokit::sys::sk_quit();
+	let log_layer = fmt::Layer::new()
+		.with_thread_names(true)
+		.with_ansi(true)
+		.with_line_number(true)
+		.with_filter(EnvFilter::from_default_env());
+	registry.with(log_layer).init();
+
+	let cli_args = CliArgs::parse();
+
+	let socket_path =
+		server::get_free_socket_path().expect("Unable to find a free stardust socket path");
+	STARDUST_INSTANCE.set(socket_path.file_name().unwrap().to_string_lossy().into_owned()).expect("Someone hasn't done their job, yell at Nova because how is this set multiple times what the hell");
+	info!(
+		socket_path = ?socket_path.display(),
+		"Stardust socket created"
+	);
+	let socket =
+		UnixListener::bind(socket_path).expect("Couldn't spawn stardust server at {socket_path}");
+	task::new(|| "client join loop", async move {
+		loop {
+			let Ok((stream, _)) = socket.accept().await else {
+				continue;
+			};
+			if let Err(e) = Client::from_connection(stream) {
+				error!(?e, "Unable to create client from connection");
+			}
+		}
+	})
+	.unwrap();
+	info!("Init client join loop");
+
+	let project_dirs = ProjectDirs::from("", "", "stardust");
+	if project_dirs.is_none() {
+		error!("Unable to get Stardust project directories, default skybox and startup script will not work.");
 	}
 
-	result
+	let dbus_connection = Connection::session()
+		.await
+		.expect("Could not open dbus session");
+	dbus_connection
+		.request_name("org.stardustxr.HMD")
+		.await
+		.expect("Another instance of the server is running. This is not supported currently (but is planned).");
+
+	dbus_connection
+		.object_server()
+		.at("/", ObjectManager)
+		.await
+		.expect("Couldn't add the object manager");
+
+	let sk_ready_notifier = Arc::new(Notify::new());
+	let stereokit_loop = tokio::task::spawn_blocking({
+		let sk_ready_notifier = sk_ready_notifier.clone();
+		let project_dirs = project_dirs.clone();
+		let cli_args = cli_args.clone();
+		let dbus_connection = dbus_connection.clone();
+		move || stereokit_loop(sk_ready_notifier, project_dirs, cli_args, dbus_connection)
+	});
+	sk_ready_notifier.notified().await;
+	let mut startup_children = project_dirs
+		.as_ref()
+		.map(|project_dirs| launch_start(&cli_args, project_dirs))
+		.unwrap_or_default();
+
+	tokio::select! {
+		_ = stereokit_loop => (),
+		_ = tokio::signal::ctrl_c() => unsafe {sk_quit(QuitReason::SystemClose)},
+	}
+	info!("Stopping...");
+	if let Some(project_dirs) = project_dirs {
+		save_session(&project_dirs).await;
+	}
+	for mut startup_child in startup_children.drain(..) {
+		let _ = startup_child.kill();
+	}
+
+	info!("Cleanly shut down Stardust");
+}
+
+fn stereokit_loop(
+	sk_ready_notifier: Arc<Notify>,
+	project_dirs: Option<ProjectDirs>,
+	args: CliArgs,
+	dbus_connection: Connection,
+) {
+	let sk = SkSettings::default()
+		.app_name("Stardust XR")
+		.mode(if args.flatscreen {
+			AppMode::Simulator
+		} else {
+			AppMode::XR
+		})
+		.depth_mode(DepthMode::D32)
+		.log_filter(match EnvFilter::from_default_env().max_level_hint() {
+			Some(LevelFilter::ERROR) => LogLevel::Error,
+			Some(LevelFilter::WARN) => LogLevel::Warning,
+			Some(LevelFilter::INFO) => LogLevel::Inform,
+			Some(LevelFilter::DEBUG) => LogLevel::Diagnostic,
+			Some(LevelFilter::TRACE) => LogLevel::Diagnostic,
+			Some(LevelFilter::OFF) => LogLevel::None,
+			None => LogLevel::Warning,
+		})
+		.overlay_app(args.overlay_priority.is_some())
+		.overlay_priority(args.overlay_priority.unwrap_or(u32::MAX))
+		.disable_desktop_input_window(true)
+		.origin(OriginMode::Local)
+		.init()
+		.expect("StereoKit failed to initialize");
+	info!("Init StereoKit");
+
+	Renderer::multisample(0);
+	Material::default().shader(Shader::pbr_clip());
+	Ui::enable_far_interact(false);
+
+	// Skytex/light stuff
+	{
+		if let Some(sky) = project_dirs
+			.as_ref()
+			.map(|dirs| dirs.config_dir().join("skytex.hdr"))
+			.filter(|f| f.exists())
+			.and_then(|p| SHCubemap::from_cubemap_equirectangular(p, true, 100).ok())
+		{
+			sky.render_as_sky();
+		} else {
+			Renderer::skytex(Tex::gen_color(
+				Color128::BLACK,
+				1,
+				1,
+				TexType::Cubemap,
+				TexFormat::RGBA32,
+			));
+		}
+	}
+
+	#[cfg(feature = "wayland")]
+	let mut wayland = wayland::Wayland::new().expect("Could not initialize wayland");
+	#[cfg(feature = "wayland")]
+	wayland.make_context_current();
+	sk_ready_notifier.notify_waiters();
+	info!("Stardust ready!");
+
+	let mut objects = ServerObjects::new(
+		dbus_connection.clone(),
+		&sk,
+		args.disable_controllers,
+		args.disable_hands,
+	);
+
+	let mut last_frame_delta = Duration::ZERO;
+	let mut sleep_duration = Duration::ZERO;
+	while let Some(token) = sk.step() {
+		let _span = debug_span!("StereoKit step");
+		let _span = _span.enter();
+
+		camera::update(token);
+		#[cfg(feature = "wayland")]
+		wayland.frame_event();
+		destroy_queue::clear();
+
+		objects.update(&sk, token);
+		input::process_input();
+		nodes::root::Root::send_frame_events(Time::get_step_unscaled());
+		adaptive_sleep(
+			&mut last_frame_delta,
+			&mut sleep_duration,
+			Duration::from_micros(250),
+		);
+
+		#[cfg(feature = "wayland")]
+		wayland.update();
+		drawable::draw(token);
+		audio::update();
+	}
+
+	info!("Cleanly shut down StereoKit");
+	#[cfg(feature = "wayland")]
+	drop(wayland);
+}
+
+fn adaptive_sleep(
+	last_frame_delta: &mut Duration,
+	sleep_duration: &mut Duration,
+	sleep_duration_increase: Duration,
+) {
+	let frame_delta = Duration::from_secs_f64(Time::get_step_unscaled());
+	if *last_frame_delta < frame_delta {
+		if let Some(frame_delta_delta) = frame_delta.checked_sub(*last_frame_delta) {
+			if let Some(new_sleep_duration) = sleep_duration.checked_sub(frame_delta_delta) {
+				*sleep_duration = new_sleep_duration;
+			}
+		}
+	} else {
+		*sleep_duration += sleep_duration_increase;
+	}
+
+	debug_span!("Sleep", ?sleep_duration, ?frame_delta, ?last_frame_delta).in_scope(|| {
+		*last_frame_delta = frame_delta;
+		std::thread::sleep(*sleep_duration); // to give clients a chance to even update anything before drawing
+	});
 }

src/nodes/alias.rs

@@ -1,38 +1,141 @@
-use crate::core::client::Client;
-
-use super::Node;
-use std::sync::{Arc, Weak};
+use super::{Aspect, Node};
+use crate::core::{client::Client, registry::Registry};
+use color_eyre::eyre::Result;
+use std::{
+	ops::Add,
+	sync::{Arc, Weak},
+};
 
 #[derive(Debug, Default, Clone)]
 pub struct AliasInfo {
-	pub(super) local_signals: Vec<&'static str>,
-	pub(super) local_methods: Vec<&'static str>,
-	pub(super) remote_signals: Vec<&'static str>,
+	pub(super) server_signals: Vec<u64>,
+	pub(super) server_methods: Vec<u64>,
+	pub(super) client_signals: Vec<u64>,
+}
+impl Add for AliasInfo {
+	type Output = AliasInfo;
+	fn add(mut self, mut rhs: Self) -> Self::Output {
+		self.server_signals.append(&mut rhs.server_signals);
+		self.server_methods.append(&mut rhs.server_methods);
+		self.client_signals.append(&mut rhs.client_signals);
+		self
+	}
 }
 
-#[allow(dead_code)]
+#[derive(Debug)]
 pub struct Alias {
 	pub(super) node: Weak<Node>,
-	pub original: Weak<Node>,
-
-	pub info: AliasInfo,
+	pub(super) original: Weak<Node>,
+	pub(super) info: AliasInfo,
 }
 impl Alias {
-	pub fn new(
-		client: &Arc<Client>,
-		parent: &str,
-		name: &str,
+	pub fn create(
 		original: &Arc<Node>,
+		client: &Arc<Client>,
 		info: AliasInfo,
-	) -> Arc<Node> {
-		let node = Node::create(client, parent, name, true).add_to_scenegraph();
+		list: Option<&AliasList>,
+	) -> Result<Arc<Node>> {
+		let node = Node::generate(client, true).add_to_scenegraph()?;
+		Self::add_to(&node, original, info)?;
+		if let Some(list) = list {
+			list.add(&node);
+		}
+		Ok(node)
+	}
+	pub fn create_with_id(
+		original: &Arc<Node>,
+		client: &Arc<Client>,
+		new_id: u64,
+		info: AliasInfo,
+		list: Option<&AliasList>,
+	) -> Result<Arc<Node>> {
+		let node = Node::from_id(client, new_id, true).add_to_scenegraph()?;
+		Self::add_to(&node, original, info)?;
+		if let Some(list) = list {
+			list.add(&node);
+		}
+		Ok(node)
+	}
+
+	fn add_to(new_node: &Arc<Node>, original: &Arc<Node>, info: AliasInfo) -> Result<()> {
 		let alias = Alias {
-			node: Arc::downgrade(&node),
+			node: Arc::downgrade(new_node),
 			original: Arc::downgrade(original),
 			info,
 		};
 		let alias = original.aliases.add(alias);
-		let _ = node.alias.set(alias);
-		node
+		new_node.add_aspect_raw(alias);
+		Ok(())
+	}
+}
+impl Aspect for Alias {
+	const NAME: &'static str = "Alias";
+}
+
+pub fn get_original(node: Arc<Node>, stop_on_disabled: bool) -> Option<Arc<Node>> {
+	let Ok(alias) = node.get_aspect::<Alias>() else {
+		return Some(node);
+	};
+	if stop_on_disabled && !node.enabled() {
+		return None;
+	}
+	get_original(alias.original.upgrade()?, stop_on_disabled)
+}
+pub fn links_to(alias: Arc<Node>, original: Weak<Node>) -> bool {
+	let Ok(alias) = alias.get_aspect::<Alias>() else {
+		return false;
+	};
+	if alias.original.ptr_eq(&original) {
+		return true;
+	}
+	let Some(original_strong) = alias.original.upgrade() else {
+		return false;
+	};
+	links_to(original_strong, original)
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct AliasList(Registry<Node>);
+impl AliasList {
+	fn add(&self, node: &Arc<Node>) {
+		self.0.add_raw(node);
+	}
+	pub fn get_from_original_node(&self, original: Weak<Node>) -> Option<Arc<Node>> {
+		self.0
+			.get_valid_contents()
+			.into_iter()
+			.find(move |node| links_to(node.clone(), original.clone()))
+	}
+	pub fn get_from_aspect<A: Aspect>(&self, aspect: &A) -> Option<Arc<Node>> {
+		self.0.get_valid_contents().into_iter().find(|node| {
+			let Some(node) = get_original(node.clone(), false) else {
+				return false;
+			};
+			let Ok(aspect2) = node.get_aspect::<A>() else {
+				return false;
+			};
+			Arc::as_ptr(&aspect2) == (aspect as *const A)
+		})
+	}
+	pub fn get_aliases(&self) -> Vec<Arc<Node>> {
+		self.0.get_valid_contents()
+	}
+	pub fn remove_aspect<A: Aspect>(&self, aspect: &A) {
+		self.0.retain(|node| {
+			let Some(original) = get_original(node.clone(), false) else {
+				return false;
+			};
+			let Ok(aspect2) = original.get_aspect::<A>() else {
+				return false;
+			};
+			Arc::as_ptr(&aspect2) != (aspect as *const A)
+		})
+	}
+}
+impl Drop for AliasList {
+	fn drop(&mut self) {
+		for node in self.0.take_valid_contents() {
+			node.destroy();
+		}
 	}
 }

src/nodes/audio.rs

@@ -0,0 +1,124 @@
+use super::{Aspect, Node};
+use crate::core::client::Client;
+use crate::core::destroy_queue;
+use crate::core::registry::Registry;
+use crate::core::resource::get_resource_file;
+use crate::create_interface;
+use crate::nodes::spatial::SPATIAL_ASPECT_ALIAS_INFO;
+use crate::nodes::spatial::{Spatial, Transform};
+use color_eyre::eyre::{eyre, Result};
+use glam::{vec3, Vec4Swizzles};
+use once_cell::sync::OnceCell;
+use parking_lot::Mutex;
+use stardust_xr::values::ResourceID;
+
+use std::ops::DerefMut;
+use std::sync::Arc;
+use std::{ffi::OsStr, path::PathBuf};
+use stereokit_rust::sound::{Sound as SkSound, SoundInst};
+
+static SOUND_REGISTRY: Registry<Sound> = Registry::new();
+
+stardust_xr_server_codegen::codegen_audio_protocol!();
+pub struct Sound {
+	space: Arc<Spatial>,
+
+	volume: f32,
+	pending_audio_path: PathBuf,
+	sk_sound: OnceCell<SkSound>,
+	instance: Mutex<Option<SoundInst>>,
+	stop: Mutex<Option<()>>,
+	play: Mutex<Option<()>>,
+}
+impl Sound {
+	pub fn add_to(node: &Arc<Node>, resource_id: ResourceID) -> Result<Arc<Sound>> {
+		let pending_audio_path = get_resource_file(
+			&resource_id,
+			&*node.get_client().ok_or_else(|| eyre!("Client not found"))?,
+			&[OsStr::new("wav"), OsStr::new("mp3")],
+		)
+		.ok_or_else(|| eyre!("Resource not found"))?;
+		let sound = Sound {
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
+			volume: 1.0,
+			pending_audio_path,
+			sk_sound: OnceCell::new(),
+			instance: Mutex::new(None),
+			stop: Mutex::new(None),
+			play: Mutex::new(None),
+		};
+		let sound_arc = SOUND_REGISTRY.add(sound);
+		node.add_aspect_raw(sound_arc.clone());
+		<Sound as SoundAspect>::add_node_members(node);
+		Ok(sound_arc)
+	}
+
+	fn update(&self) {
+		let sound = self
+			.sk_sound
+			.get_or_init(|| SkSound::from_file(self.pending_audio_path.clone()).unwrap());
+		if self.stop.lock().take().is_some() {
+			if let Some(instance) = self.instance.lock().take() {
+				instance.stop();
+			}
+		}
+		if self.instance.lock().is_none() && self.play.lock().take().is_some() {
+			let instance = sound.play(vec3(0.0, 0.0, 0.0), Some(self.volume));
+			self.instance.lock().replace(instance);
+		}
+		if let Some(instance) = self.instance.lock().deref_mut() {
+			instance.position(self.space.global_transform().w_axis.xyz());
+		}
+	}
+}
+impl Aspect for Sound {
+	const NAME: &'static str = "Sound";
+}
+impl SoundAspect for Sound {
+	fn play(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let sound = node.get_aspect::<Sound>().unwrap();
+		sound.play.lock().replace(());
+		Ok(())
+	}
+	fn stop(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let sound = node.get_aspect::<Sound>().unwrap();
+		sound.stop.lock().replace(());
+		Ok(())
+	}
+}
+impl Drop for Sound {
+	fn drop(&mut self) {
+		if let Some(sk_sound) = self.sk_sound.take() {
+			destroy_queue::add(sk_sound);
+		}
+		SOUND_REGISTRY.remove(self);
+	}
+}
+
+pub fn update() {
+	for sound in SOUND_REGISTRY.get_valid_contents() {
+		sound.update()
+	}
+}
+
+create_interface!(AudioInterface);
+struct AudioInterface;
+impl InterfaceAspect for AudioInterface {
+	#[doc = "Create a sound node. WAV and MP3 are supported."]
+	fn create_sound(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		resource: ResourceID,
+	) -> Result<()> {
+		let node = Node::from_id(&calling_client, id, true);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
+		let node = node.add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Sound::add_to(&node, resource)?;
+		Ok(())
+	}
+}

src/nodes/data.rs

@@ -1,29 +1,51 @@
-use super::alias::AliasInfo;
+use super::alias::AliasList;
 use super::fields::Field;
 use super::spatial::{parse_transform, Spatial};
-use super::{Alias, Node};
+use super::{Alias, Aspect, Node};
 use crate::core::client::Client;
-use crate::core::nodelist::LifeLinkedNodeList;
 use crate::core::registry::Registry;
-use crate::nodes::fields::find_field;
-use crate::nodes::spatial::find_spatial_parent;
-use anyhow::{anyhow, ensure, Result};
-use glam::vec3a;
+use crate::create_interface;
+use crate::nodes::fields::FIELD_ALIAS_INFO;
+use crate::nodes::spatial::Transform;
+use crate::nodes::spatial::SPATIAL_ASPECT_ALIAS_INFO;
+use color_eyre::eyre::{bail, ensure, eyre, Result};
+use lazy_static::lazy_static;
 use parking_lot::Mutex;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::{deserialize, serialize};
-use stardust_xr::values::Transform;
+use slotmap::{DefaultKey, Key, KeyData, SlotMap};
+use stardust_xr::schemas::flex::flexbuffers;
+use stardust_xr::values::Datamap;
 use std::sync::{Arc, Weak};
 
-static PULSE_SENDER_REGISTRY: Registry<PulseSender> = Registry::new();
-static PULSE_RECEIVER_REGISTRY: Registry<PulseReceiver> = Registry::new();
+lazy_static! {
+	pub static ref KEYMAPS: Mutex<SlotMap<DefaultKey, String>> = Mutex::new(SlotMap::default());
+}
 
-fn mask_matches(mask_map_lesser: &Mask, mask_map_greater: &Mask) -> bool {
+// TODO: probably just use d-bus for this stuff (custom protocol for exporting spatials as refs) because the mask stuff is just too confusing
+
+static PULSE_SENDER_REGISTRY: Registry<PulseSender> = Registry::new();
+pub static PULSE_RECEIVER_REGISTRY: Registry<PulseReceiver> = Registry::new();
+
+pub fn get_mask(datamap: &Datamap) -> Result<flexbuffers::MapReader<&[u8]>> {
+	flexbuffers::Reader::get_root(datamap.raw().as_slice())
+		.map_err(|_| eyre!("Mask is not a valid flexbuffer"))?
+		.get_map()
+		.map_err(|_| eyre!("Mask is not a valid map"))
+}
+pub fn mask_matches(mask_map_lesser: &Datamap, mask_map_greater: &Datamap) -> bool {
 	(|| -> Result<_> {
-		for key in mask_map_lesser.get_mask()?.iter_keys() {
-			let lesser_key_type = mask_map_lesser.get_mask()?.index(key)?.flexbuffer_type();
-			let greater_key_type = mask_map_greater.get_mask()?.index(key)?.flexbuffer_type();
-			if lesser_key_type != greater_key_type {
+		for key in get_mask(mask_map_lesser)?.iter_keys() {
+			let lesser_key = get_mask(mask_map_lesser)?.index(key)?;
+			let greater_key = get_mask(mask_map_greater)?.index(key)?;
+			// otherwise zero-length vectors don't count the same as a single type vector
+			if lesser_key.flexbuffer_type().is_heterogenous_vector()
+				&& lesser_key.as_vector().is_empty()
+				&& greater_key.flexbuffer_type().is_vector()
+			{
+				continue;
+			}
+			if !lesser_key.flexbuffer_type().is_null()
+				&& lesser_key.flexbuffer_type() != greater_key.flexbuffer_type()
+			{
 				return Err(flexbuffers::ReaderError::InvalidPackedType {}.into());
 			}
 		}
@@ -32,122 +54,89 @@ fn mask_matches(mask_map_lesser: &Mask, mask_map_greater: &Mask) -> bool {
 	.is_ok()
 }
 
-type MaskMapGetFn = fn(&[u8]) -> Result<flexbuffers::MapReader<&[u8]>>;
-pub struct Mask {
-	binary: Vec<u8>,
-	get_fn: MaskMapGetFn,
-}
-impl Mask {
-	pub fn get_mask(&self) -> Result<flexbuffers::MapReader<&[u8]>> {
-		(self.get_fn)(self.binary.as_slice())
-	}
-	pub fn set_mask(&mut self, binary: Vec<u8>, get_fn: MaskMapGetFn) {
-		self.binary = binary;
-		self.get_fn = get_fn;
-	}
-}
-impl Default for Mask {
-	fn default() -> Self {
-		Mask {
-			binary: Default::default(),
-			get_fn: mask_get_err,
-		}
-	}
-}
-fn mask_get_err(_binary: &[u8]) -> Result<flexbuffers::MapReader<&[u8]>> {
-	Err(anyhow!("You need to call setMask to set the mask!"))
-}
-fn mask_get_map_at_root(binary: &[u8]) -> Result<flexbuffers::MapReader<&[u8]>> {
-	flexbuffers::Reader::get_root(binary)
-		.map_err(|_| anyhow!("Mask is not a valid flexbuffer"))?
-		.get_map()
-		.map_err(|_| anyhow!("Mask is not a valid map"))
-}
+stardust_xr_server_codegen::codegen_data_protocol!();
 
-#[derive(Default)]
 pub struct PulseSender {
-	mask: Mutex<Mask>,
-	aliases: LifeLinkedNodeList,
+	node: Weak<Node>,
+	pub mask: Datamap,
+	aliases: AliasList,
+	field_aliases: AliasList,
 }
 impl PulseSender {
-	pub fn add_to(node: &Arc<Node>) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
+	pub fn add_to(node: &Arc<Node>, mask: Datamap) -> Result<Arc<PulseSender>> {
+		let sender = PulseSender {
+			node: Arc::downgrade(node),
+			mask,
+			aliases: AliasList::default(),
+			field_aliases: AliasList::default(),
+		};
 
-		let sender = Default::default();
+		// <PulseSender as PulseSenderAspect>::add_node_members(node);
 		let sender = PULSE_SENDER_REGISTRY.add(sender);
-		let _ = node.pulse_sender.set(sender);
-		node.add_local_signal("setMask", PulseSender::set_mask_flex);
-		node.add_local_method("getReceivers", PulseSender::get_receivers_flex);
-		Ok(())
+		node.add_aspect_raw(sender.clone());
+		for receiver in PULSE_RECEIVER_REGISTRY.get_valid_contents() {
+			sender.handle_new_receiver(&receiver);
+		}
+		Ok(sender.clone())
 	}
-	pub fn set_mask_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		ensure!(
-			node.pulse_sender.get().is_some(),
-			"Internal: Node does not have a pulse sender aspect"
-		);
-		node.pulse_sender
-			.get()
-			.unwrap()
-			.mask
-			.lock()
-			.set_mask(data.to_vec(), mask_get_map_at_root);
-		Ok(())
+	fn handle_new_receiver(&self, receiver: &PulseReceiver) {
+		if !mask_matches(&self.mask, &receiver.mask) {
+			return;
+		}
+		let Some(tx_node) = self.node.upgrade() else {
+			return;
+		};
+		let Some(tx_client) = tx_node.get_client() else {
+			return;
+		};
+		let Some(rx_node) = receiver.node.upgrade() else {
+			return;
+		};
+		// Receiver itself
+		let Ok(rx_alias) = Alias::create(
+			&rx_node,
+			&tx_client,
+			PULSE_RECEIVER_ASPECT_ALIAS_INFO.clone(),
+			Some(&self.aliases),
+		) else {
+			return;
+		};
+
+		// Receiver's field
+		let Ok(rx_field_alias) = Alias::create(
+			&rx_node
+				.get_aspect::<PulseReceiver>()
+				.unwrap()
+				.field
+				.spatial
+				.node()
+				.unwrap(),
+			&tx_client,
+			FIELD_ALIAS_INFO.clone(),
+			Some(&self.aliases),
+		) else {
+			return;
+		};
+
+		let _ = pulse_sender_client::new_receiver(&tx_node, &rx_alias, &rx_field_alias);
 	}
-	fn get_receivers_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		_data: &[u8],
-	) -> Result<Vec<u8>> {
-		let sender_spatial = node
-			.spatial
-			.get()
-			.ok_or_else(|| anyhow!("Node does not have a spatial aspect!"))?;
-		let sender = node
-			.pulse_sender
-			.get()
-			.ok_or_else(|| anyhow!("Node does not have a sender aspect!"))?;
-		let valid_receivers = PULSE_RECEIVER_REGISTRY.get_valid_contents();
-		let mut distance_sorted_receivers: Vec<(f32, &PulseReceiver)> = valid_receivers
-			.iter()
-			.filter(|receiver| receiver.get_field().is_some())
-			.filter(|receiver| mask_matches(&*sender.mask.lock(), &*receiver.mask.lock()))
-			.map(|receiver| {
-				(
-					receiver
-						.get_field()
-						.unwrap()
-						.distance(sender_spatial, vec3a(0_f32, 0_f32, 0_f32)),
-					receiver.as_ref(),
-				)
-			})
-			.collect();
-		distance_sorted_receivers.sort_by(|(d1, _), (d2, _)| d1.partial_cmp(d2).unwrap());
-		sender.aliases.clear();
-		let uids: Vec<String> = distance_sorted_receivers
-			.into_iter()
-			.map(|(_, receiver)| {
-				let receiver_alias = Alias::new(
-					&calling_client,
-					node.get_path(),
-					receiver.uid.as_str(),
-					receiver.node.upgrade().as_ref().unwrap(),
-					AliasInfo {
-						local_methods: vec!["sendData"],
-						..Default::default()
-					},
-				);
-				sender.aliases.add(Arc::downgrade(&receiver_alias));
 
-				receiver.uid.clone()
-			})
-			.collect();
-
-		serialize(uids).map_err(|e| e.into())
+	fn handle_drop_receiver(&self, receiver: &PulseReceiver) {
+		let Some(node) = receiver.node.upgrade() else {
+			return;
+		};
+		self.aliases.remove_aspect(receiver);
+		self.field_aliases.remove_aspect(receiver.field.as_ref());
+		let Some(tx_node) = self.node.upgrade() else {
+			return;
+		};
+		let _ = pulse_sender_client::drop_receiver(&tx_node, node.get_id());
 	}
 }
+impl Aspect for PulseSender {
+	const NAME: &'static str = "PulseSender";
+}
+impl PulseSenderAspect for PulseSender {}
 impl Drop for PulseSender {
 	fn drop(&mut self) {
 		PULSE_SENDER_REGISTRY.remove(self);
@@ -155,139 +144,133 @@ impl Drop for PulseSender {
 }
 
 pub struct PulseReceiver {
-	uid: String,
-	node: Weak<Node>,
-	pub mask: Mutex<Mask>,
-	field: Weak<Field>,
+	pub node: Weak<Node>,
+	pub field: Arc<Field>,
+	pub mask: Datamap,
 }
 impl PulseReceiver {
-	pub fn add_to(node: &Arc<Node>, field: Arc<Field>) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-
+	pub fn add_to(
+		node: &Arc<Node>,
+		field: Arc<Field>,
+		mask: Datamap,
+	) -> Result<Arc<PulseReceiver>> {
 		let receiver = PulseReceiver {
-			uid: node.uid.clone(),
 			node: Arc::downgrade(node),
-			field: Arc::downgrade(&field),
-			mask: Default::default(),
+			field,
+			mask,
 		};
 		let receiver = PULSE_RECEIVER_REGISTRY.add(receiver);
-		let _ = node.pulse_receiver.set(receiver);
-		node.add_local_signal("setMask", PulseReceiver::set_mask_flex);
-		node.add_local_signal("sendData", PulseReceiver::send_data_flex);
-		Ok(())
-	}
-	fn get_field(&self) -> Option<Arc<Field>> {
-		self.field.upgrade()
-	}
-	fn send_data_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		ensure!(
-			node.pulse_receiver.get().is_some(),
-			"Internal: Node does not have a pulse receiver aspect"
-		);
-		let receiver_mask = node.pulse_receiver.get().unwrap().mask.lock();
-		let data_mask = Mask {
-			binary: data.to_vec(),
-			get_fn: mask_get_map_at_root,
-		};
-		if !mask_matches(&receiver_mask, &data_mask) {
-			return Err(anyhow!(
-				"Message does not contain the same keys as the receiver mask"
-			));
+
+		<PulseReceiver as PulseReceiverAspect>::add_node_members(node);
+		node.add_aspect_raw(receiver.clone());
+		for sender in PULSE_SENDER_REGISTRY.get_valid_contents() {
+			sender.handle_new_receiver(&receiver);
 		}
-		drop(receiver_mask);
-		node.send_remote_signal("pulse", data)?;
-		Ok(())
+		Ok(receiver)
 	}
-	fn set_mask_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
+}
+impl Aspect for PulseReceiver {
+	const NAME: &'static str = "PulseReceiver";
+}
+impl PulseReceiverAspect for PulseReceiver {
+	fn send_data(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		sender: Arc<Node>,
+		data: Datamap,
+	) -> Result<()> {
+		let this_receiver = node.get_aspect::<PulseReceiver>().unwrap();
+
 		ensure!(
-			node.pulse_receiver.get().is_some(),
-			"Internal: Node does not have a pulse receiver aspect"
+			mask_matches(&this_receiver.mask, &data),
+			"Message ({data:?}) does not contain the same keys as the receiver's mask ({:?})",
+			this_receiver.mask
 		);
-		node.pulse_receiver
-			.get()
-			.unwrap()
-			.mask
-			.lock()
-			.set_mask(data.to_vec(), mask_get_map_at_root);
+		pulse_receiver_client::data(&node, &sender, &data)?;
 		Ok(())
 	}
 }
-
 impl Drop for PulseReceiver {
 	fn drop(&mut self) {
 		PULSE_RECEIVER_REGISTRY.remove(self);
+		for sender in PULSE_SENDER_REGISTRY.get_valid_contents() {
+			sender.handle_drop_receiver(self);
+		}
 	}
 }
 
-pub fn create_interface(client: &Arc<Client>) {
-	let node = Node::create(client, "", "data", false);
-	node.add_local_signal("createPulseSender", create_pulse_sender_flex);
-	node.add_local_signal("createPulseReceiver", create_pulse_receiver_flex);
-	node.add_to_scenegraph();
-}
-
-// pub fn mask_get_map_pulse_sender_create_args(mask: &Mask) -> Result<flexbuffers::MapReader<&[u8]>> {
-// 	flexbuffers::Reader::get_root(mask.binary.as_slice())
-// 		.map_err(|_| anyhow!("Mask is not a valid flexbuffer"))?
-// 		.get_vector()?
-// 		.index(4)?
-// 		.get_map()
-// 		.map_err(|_| anyhow!("Mask is not a valid map"))
-// }
-pub fn create_pulse_sender_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	data: &[u8],
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreatePulseSenderInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
+create_interface!(DataInterface);
+struct DataInterface;
+impl InterfaceAspect for DataInterface {
+	fn create_pulse_sender(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
 		transform: Transform,
-	}
-	let info: CreatePulseSenderInfo = deserialize(data)?;
-	let node = Node::create(&calling_client, "/data/sender", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false)?;
-	let node = node.add_to_scenegraph();
-	Spatial::add_to(&node, Some(parent), transform)?;
-	PulseSender::add_to(&node)?;
-	Ok(())
-}
+		mask: Datamap,
+	) -> Result<()> {
+		get_mask(&mask)?;
+		let node = Node::from_id(&calling_client, id, true);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, false);
 
-// pub fn mask_get_map_pulse_receiver_create_args(
-// 	mask: &Mask,
-// ) -> Result<flexbuffers::MapReader<&[u8]>> {
-// 	flexbuffers::Reader::get_root(mask.binary.as_slice())
-// 		.map_err(|_| anyhow!("Mask is not a valid flexbuffer"))?
-// 		.get_vector()?
-// 		.index(5)?
-// 		.get_map()
-// 		.map_err(|_| anyhow!("Mask is not a valid map"))
-// }
-pub fn create_pulse_receiver_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	data: &[u8],
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreatePulseReceiverInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
+		let node = node.add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		PulseSender::add_to(&node, mask)?;
+		Ok(())
+	}
+
+	fn create_pulse_receiver(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
 		transform: Transform,
-		field_path: &'a str,
-	}
-	let info: CreatePulseReceiverInfo = deserialize(data)?;
-	let node = Node::create(&calling_client, "/data/sender", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false)?;
-	let field = find_field(&calling_client, info.field_path)?;
+		field: Arc<Node>,
+		mask: Datamap,
+	) -> Result<()> {
+		get_mask(&mask)?;
+		let node = Node::from_id(&calling_client, id, true);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = parse_transform(transform, true, true, false);
+		let field = field.get_aspect::<Field>()?;
 
-	let node = node.add_to_scenegraph();
-	Spatial::add_to(&node, Some(parent), transform)?;
-	PulseReceiver::add_to(&node, field)?;
-	Ok(())
+		let node = node.add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		PulseReceiver::add_to(&node, field, mask)?;
+		Ok(())
+	}
+
+	async fn register_keymap(
+		_node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		keymap: String,
+	) -> Result<u64> {
+		let mut keymaps = KEYMAPS.lock();
+		if let Some(found_keymap_id) = keymaps
+			.iter()
+			.filter(|(_k, v)| *v == &keymap)
+			.map(|(k, _v)| k)
+			.last()
+		{
+			return Ok(found_keymap_id.data().as_ffi());
+		}
+
+		let key = keymaps.insert(keymap);
+		Ok(key.data().as_ffi())
+	}
+
+	async fn get_keymap(
+		_node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		keymap_id: u64,
+	) -> Result<String> {
+		let keymaps = KEYMAPS.lock();
+		let Some(keymap) = keymaps.get(KeyData::from_ffi(keymap_id).into()) else {
+			bail!("Could not find keymap. Try registering it")
+		};
+
+		Ok(keymap.clone())
+	}
 }

src/nodes/drawable/lines.rs

@@ -0,0 +1,110 @@
+use super::{Line, LinesAspect};
+use crate::{
+	core::{client::Client, registry::Registry},
+	nodes::{spatial::Spatial, Aspect, Node},
+};
+use color_eyre::eyre::Result;
+use glam::Vec3;
+use parking_lot::Mutex;
+use prisma::Lerp;
+use std::{collections::VecDeque, sync::Arc};
+use stereokit_rust::{
+	maths::Bounds, sk::MainThreadToken, system::LinePoint as SkLinePoint, util::Color128,
+};
+
+static LINES_REGISTRY: Registry<Lines> = Registry::new();
+
+pub struct Lines {
+	space: Arc<Spatial>,
+	data: Mutex<Vec<Line>>,
+}
+impl Lines {
+	pub fn add_to(node: &Arc<Node>, lines: Vec<Line>) -> Result<Arc<Lines>> {
+		let _ = node
+			.get_aspect::<Spatial>()
+			.unwrap()
+			.bounding_box_calc
+			.set(|node| {
+				let mut bounds = Bounds::default();
+				if let Ok(lines) = node.get_aspect::<Lines>() {
+					for line in &*lines.data.lock() {
+						for point in &line.points {
+							bounds.grown_point(Vec3::from(point.point));
+						}
+					}
+				}
+				bounds
+			});
+
+		let lines = LINES_REGISTRY.add(Lines {
+			space: node.get_aspect::<Spatial>()?.clone(),
+			data: Mutex::new(lines),
+		});
+		<Lines as LinesAspect>::add_node_members(node);
+		node.add_aspect_raw(lines.clone());
+
+		Ok(lines)
+	}
+
+	fn draw(&self, token: &MainThreadToken) {
+		let transform_mat = self.space.global_transform();
+		let data = self.data.lock().clone();
+		for line in &data {
+			let mut points: VecDeque<SkLinePoint> = line
+				.points
+				.iter()
+				.map(|p| SkLinePoint {
+					pt: transform_mat.transform_point3(Vec3::from(p.point)).into(),
+					thickness: p.thickness,
+					color: Color128::new(p.color.c.r, p.color.c.g, p.color.c.b, p.color.a).into(),
+				})
+				.collect();
+			if line.cyclic && !points.is_empty() {
+				let first = line.points.first().unwrap();
+				let last = line.points.last().unwrap();
+
+				let color = Color128 {
+					r: first.color.c.r.lerp(&last.color.c.r, 0.5),
+					g: first.color.c.g.lerp(&last.color.c.g, 0.5),
+					b: first.color.c.b.lerp(&last.color.c.b, 0.5),
+					a: first.color.a.lerp(&last.color.a, 0.5),
+				};
+				let connect_point = SkLinePoint {
+					pt: transform_mat
+						.transform_point3(Vec3::from(first.point).lerp(Vec3::from(last.point), 0.5))
+						.into(),
+					thickness: (first.thickness + last.thickness) * 0.5,
+					color: color.into(),
+				};
+				points.push_front(connect_point);
+				points.push_back(connect_point);
+			}
+			stereokit_rust::system::Lines::add_list(token, points.make_contiguous());
+		}
+	}
+}
+impl Aspect for Lines {
+	const NAME: &'static str = "Lines";
+}
+impl LinesAspect for Lines {
+	fn set_lines(node: Arc<Node>, _calling_client: Arc<Client>, lines: Vec<Line>) -> Result<()> {
+		let lines_aspect = node.get_aspect::<Lines>()?;
+		*lines_aspect.data.lock() = lines;
+		Ok(())
+	}
+}
+impl Drop for Lines {
+	fn drop(&mut self) {
+		LINES_REGISTRY.remove(self);
+	}
+}
+
+pub fn draw_all(token: &MainThreadToken) {
+	for lines in LINES_REGISTRY.get_valid_contents() {
+		if let Some(node) = lines.space.node() {
+			if node.enabled() {
+				lines.draw(token);
+			}
+		}
+	}
+}

src/nodes/drawable/mod.rs

@@ -1,47 +1,40 @@
+pub mod lines;
 pub mod model;
+#[cfg(feature = "wayland")]
+pub mod shader_manipulation;
+pub mod shaders;
 pub mod text;
 
-use super::Node;
-use crate::core::client::Client;
-use anyhow::Result;
+use self::{lines::Lines, model::Model, text::Text};
+use super::{
+	spatial::{Spatial, Transform},
+	Node,
+};
+use crate::nodes::spatial::SPATIAL_ASPECT_ALIAS_INFO;
+use crate::{
+	core::{client::Client, resource::get_resource_file},
+	create_interface,
+};
+use color_eyre::eyre::{self, Result};
 use parking_lot::Mutex;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use std::{path::PathBuf, sync::Arc};
-use stereokit::{lifecycle::DrawContext, texture::Texture, StereoKit};
+use stardust_xr::values::ResourceID;
+use std::{ffi::OsStr, path::PathBuf, sync::Arc};
+use stereokit_rust::{sk::MainThreadToken, system::Renderer, tex::SHCubemap};
 
-pub fn create_interface(client: &Arc<Client>) {
-	let node = Node::create(client, "", "drawable", false);
-	node.add_local_signal("createModel", model::create_flex);
-	node.add_local_signal("createText", text::create_flex);
-	node.add_local_signal("setSkyFile", set_sky_file_flex);
-	node.add_to_scenegraph();
-}
+// #[instrument(level = "debug", skip(sk))]
+pub fn draw(token: &MainThreadToken) {
+	lines::draw_all(token);
+	model::draw_all(token);
+	text::draw_all(token);
 
-pub fn draw(sk: &mut StereoKit, draw_ctx: &DrawContext) {
-	model::draw_all(sk, draw_ctx);
-	text::draw_all(sk, draw_ctx);
-
-	let new_skytex = QUEUED_SKYTEX.lock().take();
-	let mut new_skylight = QUEUED_SKYLIGHT.lock().take();
-	let same_file = new_skytex == new_skylight;
-
-	if let Some(skytex) = new_skytex {
-		if let Some((skytex, skylight)) =
-			Texture::from_cubemap_equirectangular(sk, &skytex, true, i32::MAX)
-		{
-			sk.set_skytex(&skytex);
-			if same_file {
-				sk.set_skylight(&skylight);
-				new_skylight = None;
-			}
+	if let Some(skytex) = QUEUED_SKYTEX.lock().take() {
+		if let Ok(skytex) = SHCubemap::from_cubemap_equirectangular(skytex, true, 100) {
+			Renderer::skytex(skytex.tex);
 		}
 	}
-	if let Some(skylight) = new_skylight {
-		if let Some((_, skylight)) =
-			Texture::from_cubemap_equirectangular(sk, &skylight, true, i32::MAX)
-		{
-			sk.set_skylight(&skylight);
+	if let Some(skylight) = QUEUED_SKYLIGHT.lock().take() {
+		if let Ok(skylight) = SHCubemap::from_cubemap_equirectangular(skylight, true, 100) {
+			Renderer::skylight(skylight.sh);
 		}
 	}
 }
@@ -49,21 +42,80 @@ pub fn draw(sk: &mut StereoKit, draw_ctx: &DrawContext) {
 static QUEUED_SKYLIGHT: Mutex<Option<PathBuf>> = Mutex::new(None);
 static QUEUED_SKYTEX: Mutex<Option<PathBuf>> = Mutex::new(None);
 
-fn set_sky_file_flex(_node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-	#[derive(Deserialize)]
-	struct SkyFileInfo {
-		path: PathBuf,
-		skytex: Option<bool>,
-		skylight: Option<bool>,
-	}
-	let info: SkyFileInfo = deserialize(data)?;
-	info.path.metadata()?;
-	if info.skytex.unwrap_or_default() {
-		QUEUED_SKYTEX.lock().replace(info.path.clone());
-	}
-	if info.skylight.unwrap_or_default() {
-		QUEUED_SKYLIGHT.lock().replace(info.path);
+stardust_xr_server_codegen::codegen_drawable_protocol!();
+create_interface!(DrawableInterface);
+
+pub struct DrawableInterface;
+impl InterfaceAspect for DrawableInterface {
+	fn set_sky_tex(_node: Arc<Node>, calling_client: Arc<Client>, tex: ResourceID) -> Result<()> {
+		let resource_path = get_resource_file(&tex, &calling_client, &[OsStr::new("hdr")])
+			.ok_or(eyre::eyre!("Could not find resource"))?;
+		QUEUED_SKYTEX.lock().replace(resource_path);
+		Ok(())
 	}
 
-	Ok(())
+	fn set_sky_light(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		light: ResourceID,
+	) -> Result<()> {
+		let resource_path = get_resource_file(&light, &calling_client, &[OsStr::new("hdr")])
+			.ok_or(eyre::eyre!("Could not find resource"))?;
+		QUEUED_SKYLIGHT.lock().replace(resource_path);
+		Ok(())
+	}
+
+	fn create_lines(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		lines: Vec<Line>,
+	) -> Result<()> {
+		let node = Node::from_id(&calling_client, id, true);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
+
+		let node = node.add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Lines::add_to(&node, lines)?;
+		Ok(())
+	}
+
+	fn load_model(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		model: ResourceID,
+	) -> Result<()> {
+		let node = Node::from_id(&calling_client, id, true);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
+		let node = node.add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Model::add_to(&node, model)?;
+		Ok(())
+	}
+
+	fn create_text(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		text: String,
+		style: TextStyle,
+	) -> Result<()> {
+		let node = Node::from_id(&calling_client, id, true);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
+
+		let node = node.add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Text::add_to(&node, text, style)?;
+		Ok(())
+	}
 }

src/nodes/drawable/model.rs

@@ -1,184 +1,401 @@
-use super::Node;
+use super::{MaterialParameter, ModelAspect, ModelPartAspect, MODEL_PART_ASPECT_ALIAS_INFO};
 use crate::core::client::Client;
-use crate::core::destroy_queue;
 use crate::core::registry::Registry;
-use crate::core::resource::ResourceID;
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use anyhow::{anyhow, ensure, Result};
-use once_cell::sync::OnceCell;
+use crate::core::resource::get_resource_file;
+use crate::nodes::alias::{Alias, AliasList};
+use crate::nodes::spatial::Spatial;
+use crate::nodes::{Aspect, Node};
+use color_eyre::eyre::{bail, eyre, Result};
+use glam::{Mat4, Vec2, Vec3};
+use once_cell::sync::{Lazy, OnceCell};
 use parking_lot::Mutex;
-use prisma::{Rgb, Rgba};
 use rustc_hash::FxHashMap;
-use send_wrapper::SendWrapper;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
-use std::fmt::Error;
-use std::path::PathBuf;
-use std::sync::Arc;
-use stereokit::lifecycle::DrawContext;
-use stereokit::material::Material;
-use stereokit::model::Model as SKModel;
-use stereokit::render::RenderLayer;
-use stereokit::texture::Texture;
-use stereokit::StereoKit;
+use stardust_xr::values::ResourceID;
+use std::ffi::OsStr;
+use std::hash::{Hash, Hasher};
+use std::sync::{Arc, Weak};
+use stereokit_rust::material::Transparency;
+use stereokit_rust::maths::Bounds;
+use stereokit_rust::sk::MainThreadToken;
+use stereokit_rust::{material::Material, model::Model as SKModel, tex::Tex, util::Color128};
 
+pub struct MaterialWrapper(pub Material);
+impl Hash for MaterialWrapper {
+	fn hash<H: Hasher>(&self, state: &mut H) {
+		self.0.get_shader().0.as_ptr().hash(state);
+		for param in self.0.get_all_param_info() {
+			param.to_string().hash(state)
+		}
+		self.0.get_chain().map(MaterialWrapper).hash(state)
+	}
+}
+impl PartialEq for MaterialWrapper {
+	fn eq(&self, other: &Self) -> bool {
+		if self.0.get_shader().0.as_ptr() != other.0.get_shader().0.as_ptr() {
+			return false;
+		}
+		if self.0.get_all_param_info().count() != other.0.get_all_param_info().count() {
+			return false;
+		}
+		for self_param in self.0.get_all_param_info() {
+			let Some(other_param) = other
+				.0
+				.get_all_param_info()
+				.get_data(self_param.get_name(), self_param.get_type())
+			else {
+				return false;
+			};
+			if self_param.to_string() != other_param.to_string() {
+				return false;
+			}
+		}
+		self.0.get_chain().map(MaterialWrapper) == other.0.get_chain().map(MaterialWrapper)
+	}
+}
+impl Eq for MaterialWrapper {}
+unsafe impl Send for MaterialWrapper {}
+unsafe impl Sync for MaterialWrapper {}
+
+#[derive(Default)]
+struct MaterialRegistry(Mutex<FxHashMap<u64, String>>);
+impl MaterialRegistry {
+	fn add_or_get(&self, material: Arc<MaterialWrapper>) -> Arc<MaterialWrapper> {
+		let mut lock = self.0.lock();
+		let hash = {
+			use std::hash::{Hash, Hasher};
+			let mut hasher = std::collections::hash_map::DefaultHasher::new();
+			material.hash(&mut hasher);
+			hasher.finish()
+		};
+
+		if let Some(id) = lock.get(&hash) {
+			if let Ok(existing) = Material::find(id) {
+				return Arc::new(MaterialWrapper(existing));
+			}
+		}
+
+		lock.insert(hash, material.0.get_id().to_string());
+		material
+	}
+}
+
+static MATERIAL_REGISTRY: Lazy<MaterialRegistry> = Lazy::new(MaterialRegistry::default);
 static MODEL_REGISTRY: Registry<Model> = Registry::new();
+static HOLDOUT_MATERIAL: OnceCell<Arc<MaterialWrapper>> = OnceCell::new();
 
-#[derive(Deserialize, Debug)]
-#[serde(untagged)]
-pub enum MaterialParameter {
-	Texture(PathBuf),
+impl MaterialParameter {
+	fn apply_to_material(&self, client: &Client, material: &Material, parameter_name: &str) {
+		let mut params = material.get_all_param_info();
+		match self {
+			MaterialParameter::Bool(val) => {
+				params.set_bool(parameter_name, *val);
+			}
+			MaterialParameter::Int(val) => {
+				params.set_int(parameter_name, &[*val]);
+			}
+			MaterialParameter::UInt(val) => {
+				params.set_uint(parameter_name, &[*val]);
+			}
+			MaterialParameter::Float(val) => {
+				params.set_float(parameter_name, *val);
+			}
+			MaterialParameter::Vec2(val) => {
+				params.set_vec2(parameter_name, Vec2::from(*val));
+			}
+			MaterialParameter::Vec3(val) => {
+				params.set_vec3(parameter_name, Vec3::from(*val));
+			}
+			MaterialParameter::Color(val) => {
+				params.set_color(
+					parameter_name,
+					Color128::new(val.c.r, val.c.g, val.c.b, val.a),
+				);
+			}
+			MaterialParameter::Texture(resource) => {
+				let Some(texture_path) =
+					get_resource_file(resource, client, &[OsStr::new("png"), OsStr::new("jpg")])
+				else {
+					return;
+				};
+				if let Ok(tex) = Tex::from_file(texture_path, true, None) {
+					params.set_texture(parameter_name, &tex);
+				}
+			}
+		}
+	}
+}
+
+pub struct ModelPart {
+	id: i32,
+	path: String,
+	space: Arc<Spatial>,
+	model: Weak<Model>,
+	pending_material_parameters: Mutex<FxHashMap<String, MaterialParameter>>,
+	pending_material_replacement: Mutex<Option<Arc<MaterialWrapper>>>,
+	aliases: AliasList,
+}
+impl ModelPart {
+	fn create_for_model(model: &Arc<Model>, sk_model: &SKModel) {
+		HOLDOUT_MATERIAL.get_or_init(|| {
+			let mut mat = Material::copy(&Material::unlit());
+			mat.transparency(Transparency::None);
+			mat.color_tint(Color128::BLACK_TRANSPARENT);
+			Arc::new(MaterialWrapper(mat))
+		});
+
+		let nodes = sk_model.get_nodes();
+		for part in nodes.all() {
+			ModelPart::create(model, &part);
+		}
+	}
+
+	fn create(model: &Arc<Model>, part: &stereokit_rust::model::ModelNode) -> Option<Arc<Self>> {
+		let mut parts = model.parts.lock();
+		let parent_part = part
+			.get_parent()
+			.and_then(|part| parts.iter().find(|p| p.id == *part.get_id()));
+
+		let stardust_model_part = model.space.node()?;
+		let client = stardust_model_part.get_client()?;
+		let mut part_path = parent_part
+			.map(|n| n.path.clone() + "/")
+			.unwrap_or_default();
+		part_path += part.get_name().unwrap();
+
+		let node = client.scenegraph.add_node(Node::generate(&client, false));
+		let spatial_parent = parent_part
+			.map(|n| n.space.clone())
+			.unwrap_or_else(|| model.space.clone());
+
+		let local_transform = unsafe { part.get_local_transform().m };
+		let space = Spatial::add_to(
+			&node,
+			Some(spatial_parent),
+			Mat4::from_cols_array(&local_transform),
+			false,
+		);
+
+		let _ = space.bounding_box_calc.set(|node| {
+			let Ok(model_part) = node.get_aspect::<ModelPart>() else {
+				return Bounds::default();
+			};
+			let Some(model) = model_part.model.upgrade() else {
+				return Bounds::default();
+			};
+			let Some(sk_model) = model.sk_model.get() else {
+				return Bounds::default();
+			};
+			let model_nodes = sk_model.get_nodes();
+			let Some(model_node) = model_nodes.get_index(model_part.id) else {
+				return Bounds::default();
+			};
+			let Some(sk_mesh) = model_node.get_mesh() else {
+				return Bounds::default();
+			};
+			sk_mesh.get_bounds()
+		});
+
+		let model_part = Arc::new(ModelPart {
+			id: *part.get_id(),
+			path: part_path,
+			space,
+			model: Arc::downgrade(model),
+			pending_material_parameters: Mutex::new(FxHashMap::default()),
+			pending_material_replacement: Mutex::new(None),
+			aliases: AliasList::default(),
+		});
+		<ModelPart as ModelPartAspect>::add_node_members(&node);
+		node.add_aspect_raw(model_part.clone());
+		parts.push(model_part.clone());
+		Some(model_part)
+	}
+
+	pub fn replace_material(&self, replacement: Arc<MaterialWrapper>) {
+		let shared_material = MATERIAL_REGISTRY.add_or_get(replacement);
+		self.pending_material_replacement
+			.lock()
+			.replace(shared_material);
+	}
+	/// only to be run on the main thread
+	pub fn replace_material_now(&self, replacement: &Material) {
+		let Some(model) = self.model.upgrade() else {
+			return;
+		};
+		let Some(sk_model) = model.sk_model.get() else {
+			return;
+		};
+		let nodes = sk_model.get_nodes();
+		let Some(mut part) = nodes.get_index(self.id) else {
+			return;
+		};
+		let shared_material =
+			MATERIAL_REGISTRY.add_or_get(Arc::new(MaterialWrapper(replacement.copy())));
+		part.material(&shared_material.0);
+	}
+
+	fn update(&self) {
+		let Some(model) = self.model.upgrade() else {
+			return;
+		};
+		let Some(sk_model) = model.sk_model.get() else {
+			return;
+		};
+		let Some(node) = model.space.node() else {
+			return;
+		};
+		let nodes = sk_model.get_nodes();
+		let Some(mut part) = nodes.get_index(self.id) else {
+			return;
+		};
+		part.model_transform(Spatial::space_to_space_matrix(
+			Some(&self.space),
+			Some(&model.space),
+		));
+
+		let Some(client) = node.get_client() else {
+			return;
+		};
+
+		if let Some(material_replacement) = self.pending_material_replacement.lock().take() {
+			part.material(&material_replacement.0);
+		}
+
+		'mat_params: {
+			let mut material_parameters = self.pending_material_parameters.lock();
+			if !material_parameters.is_empty() {
+				let Some(material) = part.get_material() else {
+					break 'mat_params;
+				};
+				let new_material = material.copy();
+				for (parameter_name, parameter_value) in material_parameters.drain() {
+					parameter_value.apply_to_material(&client, &new_material, &parameter_name);
+				}
+
+				let shared_material =
+					MATERIAL_REGISTRY.add_or_get(Arc::new(MaterialWrapper(new_material)));
+				part.material(&shared_material.0);
+			}
+		}
+	}
+}
+impl Aspect for ModelPart {
+	const NAME: &'static str = "ModelPart";
+}
+impl ModelPartAspect for ModelPart {
+	#[doc = "Set this model part's material to one that cuts a hole in the world. Often used for overlays/passthrough where you want to show the background through an object."]
+	fn apply_holdout_material(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let model_part = node.get_aspect::<ModelPart>()?;
+		model_part.replace_material(HOLDOUT_MATERIAL.get().unwrap().clone());
+		Ok(())
+	}
+
+	#[doc = "Set the material parameter with `parameter_name` to `value`"]
+	fn set_material_parameter(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		parameter_name: String,
+		value: MaterialParameter,
+	) -> Result<()> {
+		let model_part = node.get_aspect::<ModelPart>()?;
+		model_part
+			.pending_material_parameters
+			.lock()
+			.insert(parameter_name, value);
+
+		Ok(())
+	}
 }
 
 pub struct Model {
 	space: Arc<Spatial>,
-	resource_id: ResourceID,
-	pending_model_path: OnceCell<PathBuf>,
-	pending_material_parameters: Mutex<FxHashMap<(u32, String), MaterialParameter>>,
-	pub pending_material_replacements: Mutex<FxHashMap<u32, Arc<SendWrapper<Material>>>>,
-	sk_model: OnceCell<SendWrapper<SKModel>>,
+	_resource_id: ResourceID,
+	sk_model: OnceCell<SKModel>,
+	parts: Mutex<Vec<Arc<ModelPart>>>,
 }
-
 impl Model {
 	pub fn add_to(node: &Arc<Node>, resource_id: ResourceID) -> Result<Arc<Model>> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.model.get().is_none(),
-			"Internal: Node already has a model attached!"
-		);
-		let model = Model {
-			space: node.spatial.get().unwrap().clone(),
-			resource_id,
-			pending_model_path: OnceCell::new(),
-			pending_material_parameters: Mutex::new(FxHashMap::default()),
-			pending_material_replacements: Mutex::new(FxHashMap::default()),
+		let pending_model_path = get_resource_file(
+			&resource_id,
+			&*node.get_client().ok_or_else(|| eyre!("Client not found"))?,
+			&[OsStr::new("glb"), OsStr::new("gltf")],
+		)
+		.ok_or_else(|| eyre!("Resource not found"))?;
+
+		let model = Arc::new(Model {
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
+			_resource_id: resource_id,
 			sk_model: OnceCell::new(),
+			parts: Mutex::new(Vec::default()),
+		});
+		<Model as ModelAspect>::add_node_members(node);
+		MODEL_REGISTRY.add_raw(&model);
+
+		// technically doing this in anything but the main thread isn't a good idea but dangit we need those model nodes ASAP
+		let sk_model = SKModel::copy(SKModel::from_file(
+			pending_model_path.to_str().unwrap(),
+			None,
+		)?);
+		ModelPart::create_for_model(&model, &sk_model);
+		let _ = model.sk_model.set(sk_model);
+		node.add_aspect_raw(model.clone());
+		Ok(model)
+	}
+
+	fn draw(&self, token: &MainThreadToken) {
+		let Some(sk_model) = self.sk_model.get() else {
+			return;
 		};
-		node.add_local_signal("setMaterialParameter", Model::set_material_parameter);
-		let model_arc = MODEL_REGISTRY.add(model);
-		let _ = model_arc.pending_model_path.set(
-			model_arc
-				.resource_id
-				.get_file(
-					&node
-						.get_client()
-						.ok_or_else(|| anyhow!("Client not found"))?
-						.base_resource_prefixes
-						.lock()
-						.clone(),
-				)
-				.ok_or_else(|| anyhow!("Resource not found"))?,
-		);
-		let _ = node.model.set(model_arc.clone());
-		Ok(model_arc)
-	}
-
-	fn set_material_parameter(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		data: &[u8],
-	) -> Result<()> {
-		#[derive(Deserialize)]
-		struct MaterialParameterInfo {
-			idx: u32,
-			name: String,
-			value: MaterialParameter,
+		let parts = self.parts.lock();
+		for model_node in &*parts {
+			model_node.update();
 		}
-		let info: MaterialParameterInfo = deserialize(data)?;
-
-		node.model
-			.get()
-			.unwrap()
-			.pending_material_parameters
-			.lock()
-			.insert((info.idx, info.name), info.value);
+		drop(parts);
 
+		if let Some(node) = self.space.node() {
+			if node.enabled() {
+				sk_model.draw(token, self.space.global_transform(), None, None);
+			}
+		}
+	}
+}
+// TODO: proper hread safety in stereokit_rust (probably just bind stereokit directly)
+unsafe impl Send for Model {}
+unsafe impl Sync for Model {}
+impl Aspect for Model {
+	const NAME: &'static str = "Model";
+}
+impl ModelAspect for Model {
+	#[doc = "Bind a model part to the node with the ID input."]
+	fn bind_model_part(
+		node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		part_path: String,
+	) -> color_eyre::eyre::Result<()> {
+		let model = node.get_aspect::<Model>()?;
+		let parts = model.parts.lock();
+		let Some(part) = parts.iter().find(|p| p.path == part_path) else {
+			let paths = parts.iter().map(|p| &p.path).collect::<Vec<_>>();
+			bail!("Couldn't find model part at path {part_path}, all available paths: {paths:?}",)
+		};
+		Alias::create_with_id(
+			&part.space.node().unwrap(),
+			&calling_client,
+			id,
+			MODEL_PART_ASPECT_ALIAS_INFO.clone(),
+			Some(&part.aliases),
+		)?;
 		Ok(())
 	}
-
-	fn draw(&self, sk: &StereoKit, draw_ctx: &DrawContext) {
-		let sk_model = self
-			.sk_model
-			.get_or_try_init(|| {
-				self.pending_model_path
-					.get()
-					.and_then(|path| SKModel::from_file(sk, path.as_path(), None))
-					.as_ref()
-					.cloned()
-					.map(SendWrapper::new)
-					.ok_or(Error)
-			})
-			.ok();
-
-		if let Some(sk_model) = sk_model {
-			{
-				let mut material_replacements = self.pending_material_replacements.lock();
-				for (material_idx, replacement_material) in material_replacements.iter() {
-					sk_model.set_material(*material_idx as i32, replacement_material);
-				}
-				material_replacements.clear();
-			}
-
-			{
-				let mut material_parameters = self.pending_material_parameters.lock();
-				for ((material_idx, parameter_name), parameter_value) in material_parameters.iter()
-				{
-					if let Some(material) = sk_model.get_material(sk, *material_idx as i32) {
-						match parameter_value {
-							MaterialParameter::Texture(path) => {
-								if let Some(tex) = Texture::from_file(sk, path.as_path(), true, 0) {
-									material.set_parameter(parameter_name.as_str(), &tex);
-								}
-							}
-						}
-					}
-				}
-				material_parameters.clear();
-			}
-
-			let global_transform = self.space.global_transform().into();
-			sk_model.draw(
-				draw_ctx,
-				global_transform,
-				Rgba::new(Rgb::new(1_f32, 1_f32, 1_f32), 1_f32),
-				RenderLayer::Layer0,
-			);
-		}
-	}
 }
 impl Drop for Model {
 	fn drop(&mut self) {
-		if let Some(model) = self.sk_model.take() {
-			destroy_queue::add(model);
-		}
 		MODEL_REGISTRY.remove(self);
 	}
 }
 
-pub fn draw_all(sk: &StereoKit, draw_ctx: &DrawContext) {
+pub fn draw_all(token: &MainThreadToken) {
 	for model in MODEL_REGISTRY.get_valid_contents() {
-		model.draw(sk, draw_ctx);
+		model.draw(token);
 	}
 }
-
-pub fn create_flex(_node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateModelInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		resource: ResourceID,
-	}
-	let info: CreateModelInfo = deserialize(data)?;
-	let node = Node::create(&calling_client, "/drawable/model", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, true)?;
-	let node = node.add_to_scenegraph();
-	Spatial::add_to(&node, Some(parent), transform)?;
-	Model::add_to(&node, info.resource)?;
-	Ok(())
-}

src/nodes/drawable/shader_manipulation.rs

@@ -0,0 +1,137 @@
+#![allow(dead_code)]
+use smithay::backend::renderer::gles::{
+	ffi::{self, Gles2, FRAGMENT_SHADER, VERTEX_SHADER},
+	GlesError,
+};
+use stereokit_rust::shader::{Shader, _ShaderT};
+use tracing::error;
+
+struct FfiAssetHeader {
+	asset_type: i32,
+	asset_state: i32,
+	id: u64,
+	index: u64,
+	refs: i32,
+	debug: *mut u8,
+}
+
+struct FfiSkgShader {
+	meta: *mut u8,
+	vertex: u32,
+	pixel: u32,
+	program: u32,
+	compute: u32,
+}
+
+struct FfiShader {
+	header: FfiAssetHeader,
+	shader: FfiSkgShader,
+}
+
+unsafe fn compile_shader(
+	gl: &ffi::Gles2,
+	variant: ffi::types::GLuint,
+	src: &str,
+) -> Result<ffi::types::GLuint, GlesError> {
+	let shader = gl.CreateShader(variant);
+	if shader == 0 {
+		return Err(GlesError::CreateShaderObject);
+	}
+
+	gl.ShaderSource(
+		shader,
+		1,
+		&src.as_ptr() as *const *const u8 as *const *const ffi::types::GLchar,
+		&(src.len() as i32) as *const _,
+	);
+	gl.CompileShader(shader);
+
+	let mut status = ffi::FALSE as i32;
+	gl.GetShaderiv(shader, ffi::COMPILE_STATUS, &mut status as *mut _);
+	if status == ffi::FALSE as i32 {
+		let mut max_len = 0;
+		gl.GetShaderiv(shader, ffi::INFO_LOG_LENGTH, &mut max_len as *mut _);
+
+		let mut error = Vec::with_capacity(max_len as usize);
+		let mut len = 0;
+		gl.GetShaderInfoLog(
+			shader,
+			max_len as _,
+			&mut len as *mut _,
+			error.as_mut_ptr() as *mut _,
+		);
+		error.set_len(len as usize);
+
+		error!(
+			"[GL] {}",
+			std::str::from_utf8(&error).unwrap_or("<Error Message no utf8>")
+		);
+
+		gl.DeleteShader(shader);
+		return Err(GlesError::ShaderCompileError);
+	}
+
+	Ok(shader)
+}
+
+unsafe fn link_program(
+	gl: &ffi::Gles2,
+	vert: ffi::types::GLuint,
+	frag: ffi::types::GLuint,
+) -> Result<ffi::types::GLuint, GlesError> {
+	let program = gl.CreateProgram();
+	gl.AttachShader(program, vert);
+	gl.AttachShader(program, frag);
+	gl.LinkProgram(program);
+	// gl.DetachShader(program, vert);
+	// gl.DetachShader(program, frag);
+	// gl.DeleteShader(vert);
+	// gl.DeleteShader(frag);
+
+	let mut status = ffi::FALSE as i32;
+	gl.GetProgramiv(program, ffi::LINK_STATUS, &mut status as *mut _);
+	if status == ffi::FALSE as i32 {
+		let mut max_len = 0;
+		gl.GetProgramiv(program, ffi::INFO_LOG_LENGTH, &mut max_len as *mut _);
+
+		let mut error = Vec::with_capacity(max_len as usize);
+		let mut len = 0;
+		gl.GetProgramInfoLog(
+			program,
+			max_len as _,
+			&mut len as *mut _,
+			error.as_mut_ptr() as *mut _,
+		);
+		error.set_len(len as usize);
+
+		error!(
+			"[GL] {}",
+			std::str::from_utf8(&error).unwrap_or("<Error Message no utf8>")
+		);
+
+		gl.DeleteProgram(program);
+		return Err(GlesError::ProgramLinkError);
+	}
+
+	Ok(program)
+}
+
+pub unsafe fn shader_inject(
+	c: &Gles2,
+	sk_shader: &mut Shader,
+	vert_str: &str,
+	frag_str: &str,
+) -> Result<(), GlesError> {
+	let gl_vert = compile_shader(c, VERTEX_SHADER, vert_str)?;
+	let gl_frag = compile_shader(c, FRAGMENT_SHADER, frag_str)?;
+	let gl_prog = link_program(c, gl_vert, gl_frag)?;
+
+	let shader = sk_shader.0.as_mut() as *mut _ShaderT as *mut FfiShader;
+	if let Some(shader) = shader.as_mut() {
+		shader.shader.vertex = gl_vert;
+		shader.shader.pixel = gl_frag;
+		shader.shader.program = gl_prog;
+	}
+
+	Ok(())
+}

src/nodes/drawable/shaders.rs

@@ -0,0 +1,5 @@
+// Simula shader with fancy lanzcos sampling
+pub const UNLIT_SHADER_BYTES: &[u8] = include_bytes!("assets/shaders/shader_unlit_gamma.hlsl.sks");
+
+// Simula shader with fancy lanzcos sampling
+pub const PANEL_SHADER_BYTES: &[u8] = include_bytes!("assets/shaders/shader_unlit_simula.hlsl.sks");

src/nodes/drawable/shaders_src/shader_unlit_gamma.hlsl

@@ -28,7 +28,7 @@ psIn vs(vsIn input, uint id : SV_InstanceID) {
 	float3 world = mul(float4(input.pos.xyz, 1), sk_inst[id].world).xyz;
 	o.pos        = mul(float4(world,         1), sk_viewproj[o.view_id]);
 
-	o.uv    = (input.uv) + uv_offset * uv_scale;
+	o.uv    = (input.uv + uv_offset) * uv_scale;
 	return o;
 }
 float4 ps(psIn input) : SV_TARGET {

src/nodes/drawable/shaders_src/shader_unlit_simula.hlsl

@@ -4,19 +4,19 @@
 
 //--name = stardust/text_shader
 //--diffuse     = white
-//--fcFactor    = 1.0
-//--ripple      = 4.0
 //--uv_offset   = 0.0, 0.0
 //--uv_scale    = 1.0, 1.0
+//--fcFactor    = 1.0
+//--ripple      = 4.0
 //--alpha_min   = 0.0
 //--alpha_max   = 1.0
 Texture2D    diffuse   : register(t0);
 SamplerState diffuse_s : register(s0);
 float4       diffuse_i;
-float        fcFactor;
-float        ripple;
 float2       uv_scale;
 float2       uv_offset;
+float        fcFactor;
+float        ripple;
 float        alpha_min;
 float        alpha_max;
 
@@ -39,7 +39,7 @@ psIn vs(vsIn input, uint id : SV_InstanceID) {
 	float3 world = mul(float4(input.pos.xyz, 1), sk_inst[id].world).xyz;
 	o.pos        = mul(float4(world,         1), sk_viewproj[o.view_id]);
 
-	o.uv    = (input.uv) + uv_offset * uv_scale;
+	o.uv    = (input.uv + uv_offset) * uv_scale;
 	return o;
 }
 

src/nodes/drawable/text.rs

@@ -1,112 +1,78 @@
 use crate::{
-	core::{client::Client, destroy_queue, registry::Registry, resource::ResourceID},
-	nodes::{
-		spatial::{find_spatial_parent, parse_transform, Spatial},
-		Node,
-	},
+	core::{client::Client, destroy_queue, registry::Registry, resource::get_resource_file},
+	nodes::{spatial::Spatial, Aspect, Node},
 };
-use anyhow::{anyhow, ensure, Result};
+use color_eyre::eyre::{eyre, Result};
 use glam::{vec3, Mat4, Vec2};
-use mint::Vector2;
 use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
-use prisma::{Flatten, Rgb, Rgba};
-use send_wrapper::SendWrapper;
-use serde::Deserialize;
-use stardust_xr::{schemas::flex::deserialize, values::Transform};
-use std::{path::PathBuf, sync::Arc};
-use stereokit::{
+use std::{ffi::OsStr, path::PathBuf, sync::Arc};
+use stereokit_rust::{
 	font::Font,
-	lifecycle::DrawContext,
-	text::{self, TextAlign, TextFit, TextStyle},
-	StereoKit,
+	sk::MainThreadToken,
+	system::{TextAlign, TextFit, TextStyle as SkTextStyle},
+	util::{Color128, Color32},
 };
 
+use super::{TextAspect, TextStyle};
+
 static TEXT_REGISTRY: Registry<Text> = Registry::new();
 
-struct TextData {
-	text: String,
-	character_height: f32,
-	text_align: TextAlign,
-	bounds: Option<Vec2>,
-	fit: TextFit,
-	bounds_align: TextAlign,
-	color: Rgba<f32>,
+fn convert_align(x_align: super::XAlign, y_align: super::YAlign) -> TextAlign {
+	match (x_align, y_align) {
+		(super::XAlign::Left, super::YAlign::Top) => TextAlign::TopLeft,
+		(super::XAlign::Left, super::YAlign::Center) => TextAlign::CenterLeft,
+		(super::XAlign::Left, super::YAlign::Bottom) => TextAlign::BottomLeft,
+		(super::XAlign::Center, super::YAlign::Top) => TextAlign::Center,
+		(super::XAlign::Center, super::YAlign::Center) => TextAlign::Center,
+		(super::XAlign::Center, super::YAlign::Bottom) => TextAlign::BottomCenter,
+		(super::XAlign::Right, super::YAlign::Top) => TextAlign::TopRight,
+		(super::XAlign::Right, super::YAlign::Center) => TextAlign::CenterRight,
+		(super::XAlign::Right, super::YAlign::Bottom) => TextAlign::BottomRight,
+	}
 }
 
 pub struct Text {
 	space: Arc<Spatial>,
 	font_path: Option<PathBuf>,
-	style: OnceCell<SendWrapper<TextStyle>>,
+	style: OnceCell<SkTextStyle>,
 
-	data: Mutex<TextData>,
+	text: Mutex<String>,
+	data: Mutex<TextStyle>,
 }
 impl Text {
-	#[allow(clippy::too_many_arguments)]
-	pub fn add_to(
-		node: &Arc<Node>,
-		font_resource_id: Option<ResourceID>,
-		text: String,
-		character_height: f32,
-		text_align: TextAlign,
-		bounds: Option<Vector2<f32>>,
-		fit: TextFit,
-		bounds_align: TextAlign,
-		color: Rgba<f32>,
-	) -> Result<Arc<Text>> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.model.get().is_none(),
-			"Internal: Node already has text attached!"
-		);
-
-		let client = node
-			.get_client()
-			.ok_or_else(|| anyhow!("Client not found"))?;
+	pub fn add_to(node: &Arc<Node>, text: String, style: TextStyle) -> Result<Arc<Text>> {
+		let client = node.get_client().ok_or_else(|| eyre!("Client not found"))?;
 		let text = TEXT_REGISTRY.add(Text {
-			space: node.spatial.get().unwrap().clone(),
-			font_path: font_resource_id
-				.and_then(|res| res.get_file(&client.base_resource_prefixes.lock().clone())),
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
+			font_path: style.font.as_ref().and_then(|res| {
+				get_resource_file(res, &client, &[OsStr::new("ttf"), OsStr::new("otf")])
+			}),
 			style: OnceCell::new(),
 
-			data: Mutex::new(TextData {
-				text,
-				character_height,
-				text_align,
-				bounds: bounds.map(|b| b.into()),
-				fit,
-				bounds_align,
-				color,
-			}),
+			text: Mutex::new(text),
+			data: Mutex::new(style),
 		});
-		node.add_local_signal("setCharacterHeight", Text::set_character_height_flex);
-		node.add_local_signal("setText", Text::set_text_flex);
-		let _ = node.text.set(text.clone());
+		<Text as TextAspect>::add_node_members(node);
+		node.add_aspect_raw(text.clone());
 
 		Ok(text)
 	}
 
-	fn draw(&self, sk: &StereoKit, draw_ctx: &DrawContext) {
+	fn draw(&self, token: &MainThreadToken) {
 		let style =
 			self.style
-				.get_or_try_init(|| -> Result<SendWrapper<TextStyle>, anyhow::Error> {
-					let font = if let Some(path) = self.font_path.as_deref() {
-						Font::from_file(sk, path)
-					} else {
-						Some(Font::default(sk))
-					};
-					Ok(SendWrapper::new(TextStyle::new(
-						sk,
-						font.ok_or(std::fmt::Error)?,
-						1.0,
-						Rgba::new(Rgb::new(1.0, 1.0, 1.0), 1.0),
-					)))
+				.get_or_try_init(|| -> Result<SkTextStyle, color_eyre::eyre::Error> {
+					let font = self
+						.font_path
+						.as_deref()
+						.and_then(|path| Font::from_file(path).ok())
+						.unwrap_or_default();
+					Ok(SkTextStyle::from_font(font, 1.0, Color32::WHITE))
 				});
 
 		if let Ok(style) = style {
+			let text = self.text.lock();
 			let data = self.data.lock();
 			let transform = self.space.global_transform()
 				* Mat4::from_scale(vec3(
@@ -114,47 +80,75 @@ impl Text {
 					data.character_height,
 					data.character_height,
 				));
-			if let Some(bounds) = data.bounds {
-				text::draw_in(
-					draw_ctx,
-					&data.text,
+			if let Some(bounds) = &data.bounds {
+				stereokit_rust::system::Text::add_in(
+					token,
+					&*text,
 					transform,
-					bounds / data.character_height,
-					data.fit,
-					style,
-					data.bounds_align,
-					data.text_align,
-					vec3(0.0, 0.0, 0.0),
-					data.color,
+					Vec2::from(bounds.bounds) / data.character_height,
+					match bounds.fit {
+						super::TextFit::Wrap => TextFit::Wrap,
+						super::TextFit::Clip => TextFit::Clip,
+						super::TextFit::Squeeze => TextFit::Squeeze,
+						super::TextFit::Exact => TextFit::Exact,
+						super::TextFit::Overflow => TextFit::Overflow,
+					},
+					Some(*style),
+					Some(Color128::new(
+						data.color.c.r,
+						data.color.c.g,
+						data.color.c.b,
+						data.color.a,
+					)),
+					data.bounds
+						.as_ref()
+						.map(|b| convert_align(b.anchor_align_x, b.anchor_align_y)),
+					Some(convert_align(data.text_align_x, data.text_align_y)),
+					None,
+					None,
+					None,
 				);
 			} else {
-				text::draw_at(
-					draw_ctx,
-					&data.text,
+				stereokit_rust::system::Text::add_at(
+					token,
+					&*text,
 					transform,
-					style,
-					data.bounds_align,
-					data.text_align,
-					vec3(0.0, 0.0, 0.0),
-					data.color,
+					Some(*style),
+					Some(Color128::new(
+						data.color.c.r,
+						data.color.c.g,
+						data.color.c.b,
+						data.color.a,
+					)),
+					data.bounds
+						.as_ref()
+						.map(|b| convert_align(b.anchor_align_x, b.anchor_align_y)),
+					Some(convert_align(data.text_align_x, data.text_align_y)),
+					None,
+					None,
+					None,
 				);
 			}
 		}
 	}
-
-	pub fn set_character_height_flex(
-		node: &Node,
+}
+impl Aspect for Text {
+	const NAME: &'static str = "Text";
+}
+impl TextAspect for Text {
+	fn set_character_height(
+		node: Arc<Node>,
 		_calling_client: Arc<Client>,
-		data: &[u8],
+		height: f32,
 	) -> Result<()> {
-		let height = flexbuffers::Reader::get_root(data)?.get_f64()? as f32;
-		node.text.get().unwrap().data.lock().character_height = height;
+		let this_text = node.get_aspect::<Text>()?;
+		this_text.data.lock().character_height = height;
 		Ok(())
 	}
 
-	pub fn set_text_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		let text = flexbuffers::Reader::get_root(data)?.get_str()?.to_string();
-		node.text.get().unwrap().data.lock().text = text;
+	fn set_text(node: Arc<Node>, _calling_client: Arc<Client>, text: String) -> Result<()> {
+		let this_text = node.get_aspect::<Text>()?;
+		*this_text.text.lock() = text;
 		Ok(())
 	}
 }
@@ -167,45 +161,12 @@ impl Drop for Text {
 	}
 }
 
-pub fn draw_all(sk: &StereoKit, draw_ctx: &DrawContext) {
+pub fn draw_all(token: &MainThreadToken) {
 	for text in TEXT_REGISTRY.get_valid_contents() {
-		text.draw(sk, draw_ctx);
+		if let Some(node) = text.space.node() {
+			if node.enabled() {
+				text.draw(token);
+			}
+		}
 	}
 }
-
-pub fn create_flex(_node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateTextInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		text: String,
-		font_resource: Option<ResourceID>,
-		character_height: f32,
-		text_align: TextAlign,
-		bounds: Option<Vector2<f32>>,
-		fit: TextFit,
-		bounds_align: TextAlign,
-		color: [f32; 4],
-	}
-	let info: CreateTextInfo = deserialize(data)?;
-	let node = Node::create(&calling_client, "/drawable/text", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, true)?;
-	let color = Rgba::from_slice(&info.color);
-
-	let node = node.add_to_scenegraph();
-	Spatial::add_to(&node, Some(parent), transform)?;
-	Text::add_to(
-		&node,
-		info.font_resource,
-		info.text,
-		info.character_height,
-		info.text_align,
-		info.bounds,
-		info.fit,
-		info.bounds_align,
-		color,
-	)?;
-	Ok(())
-}

src/nodes/fields.rs

@@ -0,0 +1,287 @@
+use super::alias::{Alias, AliasInfo};
+use super::spatial::{
+	Spatial, SPATIAL_REF_GET_LOCAL_BOUNDING_BOX_SERVER_OPCODE,
+	SPATIAL_REF_GET_RELATIVE_BOUNDING_BOX_SERVER_OPCODE, SPATIAL_REF_GET_TRANSFORM_SERVER_OPCODE,
+};
+use super::{Aspect, Node};
+use crate::core::client::Client;
+use crate::create_interface;
+use crate::nodes::spatial::Transform;
+use crate::nodes::spatial::SPATIAL_ASPECT_ALIAS_INFO;
+use crate::nodes::spatial::SPATIAL_REF_ASPECT_ALIAS_INFO;
+use color_eyre::eyre::{OptionExt, Result};
+use glam::{vec2, vec3, vec3a, Vec3, Vec3A, Vec3Swizzles};
+use once_cell::sync::Lazy;
+use parking_lot::Mutex;
+use rustc_hash::FxHashMap;
+use stardust_xr::values::Vector3;
+use std::sync::Arc;
+
+// TODO: get SDFs working properly with non-uniform scale and so on, output distance relative to the spatial it's compared against
+
+pub static FIELD_ALIAS_INFO: Lazy<AliasInfo> = Lazy::new(|| AliasInfo {
+	server_methods: vec![
+		SPATIAL_REF_GET_TRANSFORM_SERVER_OPCODE,
+		SPATIAL_REF_GET_LOCAL_BOUNDING_BOX_SERVER_OPCODE,
+		SPATIAL_REF_GET_RELATIVE_BOUNDING_BOX_SERVER_OPCODE,
+		FIELD_REF_DISTANCE_SERVER_OPCODE,
+		FIELD_REF_NORMAL_SERVER_OPCODE,
+		FIELD_REF_CLOSEST_POINT_SERVER_OPCODE,
+		FIELD_REF_RAY_MARCH_SERVER_OPCODE,
+	],
+	..Default::default()
+});
+
+stardust_xr_server_codegen::codegen_field_protocol!();
+
+lazy_static::lazy_static! {
+	pub static ref EXPORTED_FIELDS: Mutex<FxHashMap<u64, Arc<Node>>> = Mutex::new(FxHashMap::default());
+}
+
+pub trait FieldTrait: Send + Sync + 'static {
+	fn spatial_ref(&self) -> &Spatial;
+
+	fn local_distance(&self, p: Vec3A) -> f32;
+	fn local_normal(&self, p: Vec3A, r: f32) -> Vec3A {
+		let d = self.local_distance(p);
+		let e = vec2(r, 0_f32);
+
+		let n = vec3a(d, d, d)
+			- vec3a(
+				self.local_distance(vec3a(e.x, e.y, e.y)),
+				self.local_distance(vec3a(e.y, e.x, e.y)),
+				self.local_distance(vec3a(e.y, e.y, e.x)),
+			);
+
+		n.normalize()
+	}
+	fn local_closest_point(&self, p: Vec3A, r: f32) -> Vec3A {
+		p - (self.local_normal(p, r) * self.local_distance(p))
+	}
+
+	fn distance(&self, reference_space: &Spatial, p: Vec3A) -> f32 {
+		let reference_to_local_space =
+			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
+		let local_p = reference_to_local_space.transform_point3a(p);
+		self.local_distance(local_p)
+	}
+	fn normal(&self, reference_space: &Spatial, p: Vec3A, r: f32) -> Vec3A {
+		let reference_to_local_space =
+			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
+		let local_p = reference_to_local_space.transform_point3a(p);
+		reference_to_local_space
+			.inverse()
+			.transform_vector3a(self.local_normal(local_p, r))
+	}
+	fn closest_point(&self, reference_space: &Spatial, p: Vec3A, r: f32) -> Vec3A {
+		let reference_to_local_space =
+			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
+		let local_p = reference_to_local_space.transform_point3a(p);
+		reference_to_local_space
+			.inverse()
+			.transform_point3a(self.local_closest_point(local_p, r))
+	}
+
+	fn ray_march(&self, ray: Ray) -> RayMarchResult {
+		let mut result = RayMarchResult {
+			ray_origin: ray.origin.into(),
+			ray_direction: ray.direction.into(),
+			min_distance: f32::MAX,
+			deepest_point_distance: 0_f32,
+			ray_length: 0_f32,
+			ray_steps: 0,
+		};
+
+		let ray_to_field_matrix =
+			Spatial::space_to_space_matrix(Some(&ray.space), Some(self.spatial_ref()));
+		let mut ray_point = ray_to_field_matrix.transform_point3a(ray.origin.into());
+		let ray_direction = ray_to_field_matrix
+			.transform_vector3a(ray.direction.into())
+			.normalize();
+
+		while result.ray_steps < MAX_RAY_STEPS && result.ray_length < MAX_RAY_LENGTH {
+			let distance = self.local_distance(ray_point);
+			let march_distance = distance.clamp(MIN_RAY_MARCH, MAX_RAY_MARCH);
+
+			result.ray_length += march_distance;
+			ray_point += ray_direction * march_distance;
+
+			if result.min_distance > distance {
+				result.deepest_point_distance = result.ray_length;
+				result.min_distance = distance;
+			}
+
+			result.ray_steps += 1;
+		}
+
+		result
+	}
+}
+
+pub struct Ray {
+	pub origin: Vec3,
+	pub direction: Vec3,
+	pub space: Arc<Spatial>,
+}
+
+// const MIN_RAY_STEPS: u32 = 0;
+const MAX_RAY_STEPS: u32 = 1000;
+
+const MIN_RAY_MARCH: f32 = 0.001_f32;
+const MAX_RAY_MARCH: f32 = f32::MAX;
+
+// const MIN_RAY_LENGTH: f32 = 0_f32;
+const MAX_RAY_LENGTH: f32 = 1000_f32;
+
+pub struct Field {
+	pub spatial: Arc<Spatial>,
+	pub shape: Mutex<Shape>,
+}
+impl Field {
+	pub fn add_to(node: &Arc<Node>, shape: Shape) -> Result<Arc<Field>> {
+		let spatial = node.get_aspect::<Spatial>()?;
+		let field = Field {
+			spatial,
+			shape: Mutex::new(shape),
+		};
+		let field = node.add_aspect(field);
+		<Field as FieldRefAspect>::add_node_members(node);
+		<Field as FieldAspect>::add_node_members(node);
+		Ok(field)
+	}
+}
+impl Aspect for Field {
+	const NAME: &'static str = "Field";
+}
+impl FieldRefAspect for Field {
+	async fn distance(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		space: Arc<Node>,
+		point: Vector3<f32>,
+	) -> Result<f32> {
+		let reference_space = space.get_aspect::<Spatial>()?;
+		let field = node.get_aspect::<Field>()?;
+		Ok(field.distance(&reference_space, point.into()))
+	}
+
+	async fn normal(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		space: Arc<Node>,
+		point: Vector3<f32>,
+	) -> Result<Vector3<f32>> {
+		let reference_space = space.get_aspect::<Spatial>()?;
+		let field = node.get_aspect::<Field>()?;
+		Ok(field.normal(&reference_space, point.into(), 0.0001).into())
+	}
+
+	async fn closest_point(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		space: Arc<Node>,
+		point: Vector3<f32>,
+	) -> Result<Vector3<f32>> {
+		let reference_space = space.get_aspect::<Spatial>()?;
+		let field = node.get_aspect::<Field>()?;
+		Ok(field
+			.closest_point(&reference_space, point.into(), 0.0001)
+			.into())
+	}
+
+	async fn ray_march(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		space: Arc<Node>,
+		ray_origin: Vector3<f32>,
+		ray_direction: Vector3<f32>,
+	) -> Result<RayMarchResult> {
+		let space = space.get_aspect::<Spatial>()?;
+		let field = node.get_aspect::<Field>()?;
+		Ok(field.ray_march(Ray {
+			origin: ray_origin.into(),
+			direction: ray_direction.into(),
+			space,
+		}))
+	}
+}
+impl FieldAspect for Field {
+	fn set_shape(node: Arc<Node>, _calling_client: Arc<Client>, shape: Shape) -> Result<()> {
+		let field = node.get_aspect::<Field>()?;
+		*field.shape.lock() = shape;
+		Ok(())
+	}
+
+	async fn export_field(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<u64> {
+		let id = rand::random();
+		EXPORTED_FIELDS.lock().insert(id, node);
+		Ok(id)
+	}
+}
+impl FieldTrait for Field {
+	fn spatial_ref(&self) -> &Spatial {
+		&self.spatial
+	}
+	fn local_distance(&self, p: Vec3A) -> f32 {
+		match self.shape.lock().clone() {
+			Shape::Box(size) => {
+				let q = vec3(
+					p.x.abs() - (size.x * 0.5_f32),
+					p.y.abs() - (size.y * 0.5_f32),
+					p.z.abs() - (size.z * 0.5_f32),
+				);
+				let v = vec3a(q.x.max(0_f32), q.y.max(0_f32), q.z.max(0_f32));
+				v.length() + q.x.max(q.y.max(q.z)).min(0_f32)
+			}
+			Shape::Cylinder(CylinderShape { length, radius }) => {
+				let d = vec2(p.xy().length().abs() - radius, p.z.abs() - (length * 0.5));
+				d.x.max(d.y).min(0.0) + d.max(vec2(0.0, 0.0)).length()
+			}
+			Shape::Sphere(radius) => p.length() - radius,
+			Shape::Torus(TorusShape { radius_a, radius_b }) => {
+				let q = vec2(p.xz().length() - radius_a, p.y);
+				q.length() - radius_b
+			}
+		}
+	}
+}
+
+create_interface!(FieldInterface);
+pub struct FieldInterface;
+impl InterfaceAspect for FieldInterface {
+	async fn import_field_ref(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		uid: u64,
+	) -> Result<Arc<Node>> {
+		EXPORTED_FIELDS
+			.lock()
+			.get(&uid)
+			.map(|s| {
+				Alias::create(
+					s,
+					&calling_client,
+					FIELD_REF_ASPECT_ALIAS_INFO.clone(),
+					None,
+				)
+				.unwrap()
+			})
+			.ok_or_eyre("Couldn't find spatial with that ID")
+	}
+
+	fn create_field(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		shape: Shape,
+	) -> Result<()> {
+		let transform = transform.to_mat4(true, true, false);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Field::add_to(&node, shape)?;
+		Ok(())
+	}
+}

src/nodes/fields/box.rs

@@ -1,82 +0,0 @@
-use super::{Field, FieldTrait, Node};
-use crate::core::client::Client;
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use anyhow::{ensure, Result};
-use glam::{vec3, vec3a, Vec3, Vec3A};
-use mint::Vector3;
-use parking_lot::Mutex;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
-use std::sync::Arc;
-
-pub struct BoxField {
-	space: Arc<Spatial>,
-	size: Mutex<Vec3>,
-}
-
-impl BoxField {
-	pub fn add_to(node: &Arc<Node>, size: Vector3<f32>) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.field.get().is_none(),
-			"Internal: Node already has a field attached!"
-		);
-		let box_field = BoxField {
-			space: node.spatial.get().unwrap().clone(),
-			size: Mutex::new(size.into()),
-		};
-		box_field.add_field_methods(node);
-		node.add_local_signal("setSize", BoxField::set_size_flex);
-		let _ = node.field.set(Arc::new(Field::Box(box_field)));
-		Ok(())
-	}
-
-	pub fn set_size(&self, size: Vector3<f32>) {
-		*self.size.lock() = size.into();
-	}
-
-	pub fn set_size_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		if let Field::Box(box_field) = node.field.get().unwrap().as_ref() {
-			box_field.set_size(deserialize(data)?);
-		}
-		Ok(())
-	}
-}
-
-impl FieldTrait for BoxField {
-	fn local_distance(&self, p: Vec3A) -> f32 {
-		let size = self.size.lock();
-		let q = vec3(
-			p.x.abs() - (size.x * 0.5_f32),
-			p.y.abs() - (size.y * 0.5_f32),
-			p.z.abs() - (size.z * 0.5_f32),
-		);
-		let v = vec3a(q.x.max(0_f32), q.y.max(0_f32), q.z.max(0_f32));
-		v.length() + q.x.max(q.y.max(q.z)).min(0_f32)
-	}
-	fn spatial_ref(&self) -> &Spatial {
-		self.space.as_ref()
-	}
-}
-
-pub fn create_box_field_flex(_node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateFieldInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		size: Vector3<f32>,
-	}
-	let info: CreateFieldInfo = deserialize(data)?;
-	let node = Node::create(&calling_client, "/field", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false)?;
-	let node = node.add_to_scenegraph();
-	Spatial::add_to(&node, Some(parent), transform)?;
-	BoxField::add_to(&node, info.size)?;
-	Ok(())
-}

src/nodes/fields/cylinder.rs

@@ -1,89 +0,0 @@
-use super::{Field, FieldTrait, Node};
-use crate::core::client::Client;
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use anyhow::{ensure, Result};
-use glam::{swizzles::*, vec2, Vec3A};
-use portable_atomic::AtomicF32;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
-
-use std::sync::atomic::Ordering;
-use std::sync::Arc;
-
-pub struct CylinderField {
-	space: Arc<Spatial>,
-	length: AtomicF32,
-	radius: AtomicF32,
-}
-
-impl CylinderField {
-	pub fn add_to(node: &Arc<Node>, length: f32, radius: f32) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.field.get().is_none(),
-			"Internal: Node already has a field attached!"
-		);
-		let cylinder_field = CylinderField {
-			space: node.spatial.get().unwrap().clone(),
-			length: AtomicF32::new(length.abs()),
-			radius: AtomicF32::new(radius.abs()),
-		};
-		cylinder_field.add_field_methods(node);
-		node.add_local_signal("setSize", CylinderField::set_size_flex);
-		let _ = node.field.set(Arc::new(Field::Cylinder(cylinder_field)));
-		Ok(())
-	}
-
-	pub fn set_size(&self, length: f32, radius: f32) {
-		self.length.store(length.abs(), Ordering::Relaxed);
-		self.radius.store(radius.abs(), Ordering::Relaxed);
-	}
-
-	pub fn set_size_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		if let Field::Cylinder(cylinder_field) = node.field.get().unwrap().as_ref() {
-			let (length, radius) = deserialize(data)?;
-			cylinder_field.set_size(length, radius);
-		}
-		Ok(())
-	}
-}
-
-impl FieldTrait for CylinderField {
-	fn local_distance(&self, p: Vec3A) -> f32 {
-		let radius = self.radius.load(Ordering::Relaxed);
-		let length = self.length.load(Ordering::Relaxed);
-		let d = vec2(p.xy().length().abs() - radius, p.z.abs() - (length * 0.5));
-
-		d.x.max(d.y).min(0.0) + d.max(vec2(0.0, 0.0)).length()
-	}
-	fn spatial_ref(&self) -> &Spatial {
-		self.space.as_ref()
-	}
-}
-
-pub fn create_cylinder_field_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	data: &[u8],
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateFieldInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		length: f32,
-		radius: f32,
-	}
-	let info: CreateFieldInfo = deserialize(data)?;
-	let node = Node::create(&calling_client, "/field", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false)?;
-	let node = node.add_to_scenegraph();
-	Spatial::add_to(&node, Some(parent), transform)?;
-	CylinderField::add_to(&node, dbg!(info.length), dbg!(info.radius))?;
-	Ok(())
-}

src/nodes/fields/mod.rs

@@ -1,212 +0,0 @@
-mod r#box;
-mod cylinder;
-mod sphere;
-
-use self::cylinder::{create_cylinder_field_flex, CylinderField};
-use self::r#box::{create_box_field_flex, BoxField};
-use self::sphere::{create_sphere_field_flex, SphereField};
-
-use super::spatial::Spatial;
-use super::Node;
-use crate::core::client::Client;
-use crate::nodes::spatial::find_reference_space;
-use anyhow::Result;
-use glam::{vec2, vec3a, Vec3, Vec3A};
-use mint::Vector3;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::{deserialize, serialize};
-
-use std::ops::Deref;
-use std::sync::Arc;
-
-pub trait FieldTrait {
-	fn local_distance(&self, p: Vec3A) -> f32;
-	fn local_normal(&self, p: Vec3A, r: f32) -> Vec3A {
-		let d = self.local_distance(p);
-		let e = vec2(r, 0_f32);
-
-		let n = vec3a(d, d, d)
-			- vec3a(
-				self.local_distance(vec3a(e.x, e.y, e.y)),
-				self.local_distance(vec3a(e.y, e.x, e.y)),
-				self.local_distance(vec3a(e.y, e.y, e.x)),
-			);
-
-		n.normalize()
-	}
-	fn local_closest_point(&self, p: Vec3A, r: f32) -> Vec3A {
-		p - (self.local_normal(p, r) * self.local_distance(p))
-	}
-
-	fn distance(&self, reference_space: &Spatial, p: Vec3A) -> f32 {
-		let reference_to_local_space =
-			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
-		let local_p = reference_to_local_space.transform_point3a(p);
-		self.local_distance(local_p)
-	}
-	fn normal(&self, reference_space: &Spatial, p: Vec3A, r: f32) -> Vec3A {
-		let reference_to_local_space =
-			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
-		let local_p = reference_to_local_space.transform_point3a(p);
-		reference_to_local_space
-			.inverse()
-			.transform_vector3a(self.local_normal(local_p, r))
-	}
-	fn closest_point(&self, reference_space: &Spatial, p: Vec3A, r: f32) -> Vec3A {
-		let reference_to_local_space =
-			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
-		let local_p = reference_to_local_space.transform_point3a(p);
-		reference_to_local_space
-			.inverse()
-			.transform_point3a(self.local_closest_point(local_p, r))
-	}
-
-	fn add_field_methods(&self, node: &Arc<Node>) {
-		node.add_local_method("distance", field_distance_flex);
-		node.add_local_method("normal", field_normal_flex);
-		node.add_local_method("closest_point", field_closest_point_flex);
-	}
-
-	fn spatial_ref(&self) -> &Spatial;
-}
-
-fn field_distance_flex(node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<Vec<u8>> {
-	#[derive(Deserialize)]
-	struct FieldInfoArgs<'a> {
-		reference_space_path: &'a str,
-		point: Vector3<f32>,
-	}
-	let args: FieldInfoArgs = deserialize(data)?;
-	let reference_space = find_reference_space(&calling_client, args.reference_space_path)?;
-
-	let distance = node
-		.field
-		.get()
-		.unwrap()
-		.distance(reference_space.as_ref(), args.point.into());
-	Ok(serialize(distance)?)
-}
-fn field_normal_flex(node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<Vec<u8>> {
-	#[derive(Deserialize)]
-	struct FieldInfoArgs<'a> {
-		reference_space_path: &'a str,
-		point: Vector3<f32>,
-		radius: Option<f32>,
-	}
-	let args: FieldInfoArgs = deserialize(data)?;
-	let reference_space = find_reference_space(&calling_client, args.reference_space_path)?;
-
-	let normal = node.field.get().as_ref().unwrap().normal(
-		reference_space.as_ref(),
-		args.point.into(),
-		args.radius.unwrap_or(0.001),
-	);
-	Ok(serialize(mint::Vector3::from(normal))?)
-}
-fn field_closest_point_flex(
-	node: &Node,
-	calling_client: Arc<Client>,
-	data: &[u8],
-) -> Result<Vec<u8>> {
-	#[derive(Deserialize)]
-	struct FieldInfoArgs<'a> {
-		reference_space_path: &'a str,
-		point: Vector3<f32>,
-		radius: Option<f32>,
-	}
-	let args: FieldInfoArgs = deserialize(data)?;
-	let reference_space = find_reference_space(&calling_client, args.reference_space_path)?;
-
-	let closest_point = node.field.get().as_ref().unwrap().closest_point(
-		reference_space.as_ref(),
-		args.point.into(),
-		args.radius.unwrap_or(0.001),
-	);
-	Ok(serialize(mint::Vector3::from(closest_point))?)
-}
-
-pub enum Field {
-	Box(BoxField),
-	Cylinder(CylinderField),
-	Sphere(SphereField),
-}
-
-impl Deref for Field {
-	type Target = dyn FieldTrait;
-	fn deref(&self) -> &Self::Target {
-		match self {
-			Field::Box(field) => field,
-			Field::Cylinder(field) => field,
-			Field::Sphere(field) => field,
-		}
-	}
-}
-
-pub fn create_interface(client: &Arc<Client>) {
-	let node = Node::create(client, "", "field", false);
-	node.add_local_signal("createBoxField", create_box_field_flex);
-	node.add_local_signal("createCylinderField", create_cylinder_field_flex);
-	node.add_local_signal("createSphereField", create_sphere_field_flex);
-	node.add_to_scenegraph();
-}
-
-pub struct Ray {
-	pub origin: Vec3,
-	pub direction: Vec3,
-	pub space: Arc<Spatial>,
-}
-
-pub struct RayMarchResult {
-	pub ray: Ray,
-	pub distance: f32,
-	pub deepest_point_distance: f32,
-	pub ray_length: f32,
-	pub ray_steps: u32,
-}
-
-// const MIN_RAY_STEPS: u32 = 0;
-const MAX_RAY_STEPS: u32 = 1000;
-
-const MIN_RAY_MARCH: f32 = 0.001_f32;
-const MAX_RAY_MARCH: f32 = f32::MAX;
-
-// const MIN_RAY_LENGTH: f32 = 0_f32;
-const MAX_RAY_LENGTH: f32 = 1000_f32;
-
-pub fn ray_march(ray: Ray, field: &Field) -> RayMarchResult {
-	let mut result = RayMarchResult {
-		ray,
-		distance: f32::MAX,
-		deepest_point_distance: 0_f32,
-		ray_length: 0_f32,
-		ray_steps: 0,
-	};
-
-	let ray_to_field_matrix =
-		Spatial::space_to_space_matrix(Some(&result.ray.space), Some(field.spatial_ref()));
-	let mut ray_point = ray_to_field_matrix.transform_point3a(result.ray.origin.into());
-	let ray_direction = ray_to_field_matrix.transform_vector3a(result.ray.direction.into());
-
-	while result.ray_steps < MAX_RAY_STEPS && result.ray_length < MAX_RAY_LENGTH {
-		let distance = field.local_distance(ray_point);
-		let march_distance = distance.clamp(MIN_RAY_MARCH, MAX_RAY_MARCH);
-
-		result.ray_length += march_distance;
-		ray_point += ray_direction * march_distance;
-
-		if result.distance > distance {
-			result.deepest_point_distance = result.ray_length;
-		}
-		result.distance = distance.min(result.distance);
-
-		result.ray_steps += 1;
-	}
-
-	result
-}
-
-pub fn find_field(client: &Client, path: &str) -> Result<Arc<Field>> {
-	Ok(client
-		.get_node("Field", path)?
-		.get_aspect("Field", "info", |n| &n.field)?)
-}

src/nodes/fields/sphere.rs

@@ -1,90 +0,0 @@
-use super::{Field, FieldTrait, Node};
-use crate::core::client::Client;
-use crate::nodes::spatial::{find_spatial_parent, Spatial};
-use anyhow::{ensure, Result};
-use glam::{Mat4, Vec3A};
-use mint::Vector3;
-use portable_atomic::AtomicF32;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use std::sync::atomic::Ordering;
-use std::sync::Arc;
-
-pub struct SphereField {
-	space: Arc<Spatial>,
-	radius: AtomicF32,
-}
-
-impl SphereField {
-	pub fn add_to(node: &Arc<Node>, radius: f32) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.field.get().is_none(),
-			"Internal: Node already has a field attached!"
-		);
-		let sphere_field = SphereField {
-			space: node.spatial.get().unwrap().clone(),
-			radius: AtomicF32::new(radius),
-		};
-		sphere_field.add_field_methods(node);
-		node.add_local_signal("setRadius", SphereField::set_radius_flex);
-		let _ = node.field.set(Arc::new(Field::Sphere(sphere_field)));
-		Ok(())
-	}
-
-	pub fn set_radius(&self, radius: f32) {
-		self.radius.store(radius, Ordering::Relaxed);
-	}
-
-	pub fn set_radius_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		let radius = flexbuffers::Reader::get_root(data)?.get_f64()? as f32;
-		if let Field::Sphere(sphere_field) = node.field.get().unwrap().as_ref() {
-			sphere_field.set_radius(radius);
-		}
-		Ok(())
-	}
-}
-
-impl FieldTrait for SphereField {
-	fn local_distance(&self, p: Vec3A) -> f32 {
-		p.length() - self.radius.load(Ordering::Relaxed)
-	}
-	fn local_normal(&self, p: Vec3A, _r: f32) -> Vec3A {
-		-p.normalize()
-	}
-	fn local_closest_point(&self, p: Vec3A, _r: f32) -> Vec3A {
-		p.normalize() * self.radius.load(Ordering::Relaxed)
-	}
-	fn spatial_ref(&self) -> &Spatial {
-		self.space.as_ref()
-	}
-}
-
-pub fn create_sphere_field_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	data: &[u8],
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateFieldInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		origin: Option<Vector3<f32>>,
-		radius: f32,
-	}
-	let info: CreateFieldInfo = deserialize(data)?;
-	let node = Node::create(&calling_client, "/field", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = Mat4::from_translation(
-		info.origin
-			.unwrap_or_else(|| Vector3::from([0.0; 3]))
-			.into(),
-	);
-	let node = node.add_to_scenegraph();
-	Spatial::add_to(&node, Some(parent), transform)?;
-	SphereField::add_to(&node, info.radius)?;
-	Ok(())
-}

src/nodes/hmd.rs

@@ -1,42 +0,0 @@
-use super::{alias::Alias, spatial::Spatial, Node};
-use crate::{
-	core::client::{Client, INTERNAL_CLIENT},
-	nodes::alias::AliasInfo,
-};
-use glam::{vec3, Mat4};
-use std::sync::Arc;
-use stereokit::StereoKit;
-
-lazy_static::lazy_static! {
-	static ref HMD: Arc<Node> = create();
-}
-
-fn create() -> Arc<Node> {
-	let node = Arc::new(Node::create(&INTERNAL_CLIENT, "", "hmd", false));
-	Spatial::add_to(&node, None, Mat4::IDENTITY).unwrap();
-
-	node
-}
-
-pub fn frame(sk: &StereoKit) {
-	let spatial = HMD.spatial.get().unwrap();
-	let hmd_pose = sk.input_head();
-	*spatial.transform.lock() = Mat4::from_scale_rotation_translation(
-		vec3(1.0, 1.0, 1.0),
-		hmd_pose.orientation.into(),
-		hmd_pose.position.into(),
-	);
-}
-
-pub fn make_alias(client: &Arc<Client>) -> Arc<Node> {
-	Alias::new(
-		client,
-		"",
-		"hmd",
-		&HMD,
-		AliasInfo {
-			local_signals: vec!["getTransform"],
-			..Default::default()
-		},
-	)
-}

src/nodes/input/hand.rs

@@ -1,48 +1,89 @@
-use crate::nodes::fields::Field;
+use super::{Finger, Hand, InputDataTrait, InputHandler, InputMethod, Joint, Thumb};
+use crate::nodes::fields::{Field, FieldTrait};
 use crate::nodes::spatial::Spatial;
-use glam::{vec3a, Mat4};
-use stardust_xr::schemas::flat::{Hand as FlatHand, InputDataType, Joint};
+use glam::{vec3a, Mat4, Quat};
 use std::sync::Arc;
 
-use super::{DistanceLink, InputSpecialization};
-
-#[derive(Debug, Default)]
-pub struct Hand {
-	pub base: FlatHand,
+impl Default for Joint {
+	fn default() -> Self {
+		Joint {
+			position: [0.0; 3].into(),
+			rotation: Quat::IDENTITY.into(),
+			radius: 0.0,
+			distance: 0.0,
+		}
+	}
 }
-impl InputSpecialization for Hand {
+#[allow(clippy::derivable_impls)]
+impl Default for Finger {
+	fn default() -> Self {
+		Finger {
+			tip: Default::default(),
+			distal: Default::default(),
+			intermediate: Default::default(),
+			proximal: Default::default(),
+			metacarpal: Default::default(),
+		}
+	}
+}
+#[allow(clippy::derivable_impls)]
+impl Default for Thumb {
+	fn default() -> Self {
+		Thumb {
+			tip: Default::default(),
+			distal: Default::default(),
+			proximal: Default::default(),
+			metacarpal: Default::default(),
+		}
+	}
+}
+#[allow(clippy::derivable_impls)]
+impl Default for Hand {
+	fn default() -> Self {
+		Hand {
+			right: Default::default(),
+			thumb: Default::default(),
+			index: Default::default(),
+			middle: Default::default(),
+			ring: Default::default(),
+			little: Default::default(),
+			palm: Default::default(),
+			wrist: Default::default(),
+			elbow: Default::default(),
+		}
+	}
+}
+
+impl InputDataTrait for Hand {
 	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
 		let mut min_distance = f32::MAX;
 
 		for tip in [
-			&self.base.thumb.tip.position,
-			&self.base.index.tip.position,
-			&self.base.middle.tip.position,
-			&self.base.ring.tip.position,
-			&self.base.little.tip.position,
+			&self.thumb.tip.position,
+			&self.index.tip.position,
+			&self.middle.tip.position,
+			&self.ring.tip.position,
+			&self.little.tip.position,
 		] {
 			min_distance = min_distance.min(field.distance(space, vec3a(tip.x, tip.y, tip.z)));
 		}
 
 		min_distance
 	}
-	fn serialize(
-		&self,
-		_distance_link: &DistanceLink,
-		local_to_handler_matrix: Mat4,
-	) -> InputDataType {
-		let mut hand = self.base;
+	fn transform(&mut self, method: &InputMethod, handler: &InputHandler) {
+		let local_to_handler_matrix =
+			Spatial::space_to_space_matrix(Some(&method.spatial), Some(&handler.spatial));
 		let mut joints: Vec<&mut Joint> = Vec::new();
 
-		joints.extend([&mut hand.palm, &mut hand.wrist]);
-		if let Some(elbow) = &mut hand.elbow {
+		joints.extend([&mut self.palm, &mut self.wrist]);
+		if let Some(elbow) = &mut self.elbow {
 			joints.push(elbow);
 		}
 		for finger in [
-			&mut hand.index,
-			&mut hand.middle,
-			&mut hand.ring,
-			&mut hand.little,
+			&mut self.index,
+			&mut self.middle,
+			&mut self.ring,
+			&mut self.little,
 		] {
 			joints.extend([
 				&mut finger.tip,
@@ -53,21 +94,19 @@ impl InputSpecialization for Hand {
 			]);
 		}
 		joints.extend([
-			&mut hand.thumb.tip,
-			&mut hand.thumb.distal,
-			&mut hand.thumb.proximal,
-			&mut hand.thumb.metacarpal,
+			&mut self.thumb.tip,
+			&mut self.thumb.distal,
+			&mut self.thumb.proximal,
+			&mut self.thumb.metacarpal,
 		]);
 
 		for joint in joints {
-			let joint_matrix =
-				Mat4::from_rotation_translation(joint.rotation.into(), joint.position.into())
-					* local_to_handler_matrix;
+			let joint_matrix = local_to_handler_matrix
+				* Mat4::from_rotation_translation(joint.rotation.into(), joint.position.into());
 			let (_, rotation, position) = joint_matrix.to_scale_rotation_translation();
 			joint.position = position.into();
 			joint.rotation = rotation.into();
+			joint.distance = handler.field.distance(&handler.spatial, position.into());
 		}
-
-		InputDataType::Hand(Box::new(hand))
 	}
 }

src/nodes/input/handler.rs

@@ -0,0 +1,42 @@
+use super::{InputHandlerAspect, INPUT_HANDLER_REGISTRY, INPUT_METHOD_REGISTRY};
+use crate::nodes::{alias::AliasList, fields::Field, spatial::Spatial, Aspect, Node};
+use color_eyre::eyre::Result;
+use std::sync::Arc;
+
+pub struct InputHandler {
+	pub spatial: Arc<Spatial>,
+	pub field: Arc<Field>,
+	pub(super) method_aliases: AliasList,
+}
+impl InputHandler {
+	pub fn add_to(node: &Arc<Node>, field: &Arc<Field>) -> Result<()> {
+		let handler = InputHandler {
+			spatial: node.get_aspect::<Spatial>().unwrap().clone(),
+			field: field.clone(),
+			method_aliases: AliasList::default(),
+		};
+		for method in INPUT_METHOD_REGISTRY.get_valid_contents() {
+			method.handle_new_handler(&handler);
+		}
+		let handler = INPUT_HANDLER_REGISTRY.add(handler);
+		node.add_aspect_raw(handler);
+		Ok(())
+	}
+}
+impl Aspect for InputHandler {
+	const NAME: &'static str = "InputHandler";
+}
+impl InputHandlerAspect for InputHandler {}
+impl PartialEq for InputHandler {
+	fn eq(&self, other: &Self) -> bool {
+		self.spatial == other.spatial
+	}
+}
+impl Drop for InputHandler {
+	fn drop(&mut self) {
+		INPUT_HANDLER_REGISTRY.remove(self);
+		for method in INPUT_METHOD_REGISTRY.get_valid_contents() {
+			method.handle_drop_handler(self);
+		}
+	}
+}

src/nodes/input/method.rs

@@ -0,0 +1,233 @@
+use super::{
+	input_method_client, InputData, InputDataTrait, InputDataType, InputHandler, InputMethodAspect,
+	InputMethodRefAspect, INPUT_HANDLER_REGISTRY, INPUT_METHOD_REF_ASPECT_ALIAS_INFO,
+	INPUT_METHOD_REGISTRY,
+};
+use crate::{
+	core::{client::Client, registry::Registry},
+	nodes::{
+		alias::{Alias, AliasList},
+		fields::{Field, FIELD_ALIAS_INFO},
+		spatial::Spatial,
+		Aspect, Node,
+	},
+};
+use color_eyre::eyre::Result;
+use parking_lot::Mutex;
+use stardust_xr::values::Datamap;
+use std::sync::{Arc, Weak};
+
+pub struct InputMethod {
+	pub spatial: Arc<Spatial>,
+	pub data: Mutex<InputDataType>,
+	pub datamap: Mutex<Datamap>,
+
+	handler_aliases: AliasList,
+	handler_field_aliases: AliasList,
+	pub(super) handler_order: Mutex<Vec<Weak<InputHandler>>>,
+	pub internal_capture_requests: Registry<InputHandler>,
+	pub captures: Registry<InputHandler>,
+}
+impl InputMethod {
+	pub fn add_to(
+		node: &Arc<Node>,
+		data: InputDataType,
+		datamap: Datamap,
+	) -> Result<Arc<InputMethod>> {
+		let method = InputMethod {
+			spatial: node.get_aspect::<Spatial>().unwrap().clone(),
+			data: Mutex::new(data),
+			datamap: Mutex::new(datamap),
+
+			handler_aliases: AliasList::default(),
+			handler_field_aliases: AliasList::default(),
+			handler_order: Mutex::new(Vec::new()),
+			internal_capture_requests: Registry::new(),
+			captures: Registry::new(),
+		};
+		<InputMethod as InputMethodRefAspect>::add_node_members(node);
+		<InputMethod as InputMethodAspect>::add_node_members(node);
+		for handler in INPUT_HANDLER_REGISTRY.get_valid_contents() {
+			method.handle_new_handler(&handler);
+		}
+		let method = INPUT_METHOD_REGISTRY.add(method);
+		node.add_aspect_raw(method.clone());
+		Ok(method)
+	}
+
+	pub fn distance(&self, to: &Field) -> f32 {
+		self.data.lock().distance(&self.spatial, to)
+	}
+
+	pub fn set_handler_order<'a>(&self, handlers: impl Iterator<Item = &'a Arc<InputHandler>>) {
+		*self.handler_order.lock() = handlers.map(Arc::downgrade).collect();
+	}
+
+	pub(super) fn make_alias(&self, handler: &InputHandler) {
+		let Some(method_node) = self.spatial.node() else {
+			return;
+		};
+		let Some(handler_node) = handler.spatial.node() else {
+			return;
+		};
+		let Some(client) = handler_node.get_client() else {
+			return;
+		};
+		let Ok(method_alias) = Alias::create(
+			&method_node,
+			&client,
+			INPUT_METHOD_REF_ASPECT_ALIAS_INFO.clone(),
+			Some(&handler.method_aliases),
+		) else {
+			return;
+		};
+		method_alias.set_enabled(false);
+	}
+	pub(super) fn handle_new_handler(&self, handler: &InputHandler) {
+		self.make_alias(handler);
+
+		let Some(method_node) = self.spatial.node() else {
+			return;
+		};
+		let Some(method_client) = method_node.get_client() else {
+			return;
+		};
+		let Some(handler_node) = handler.spatial.node() else {
+			return;
+		};
+		// Receiver itself
+		let Ok(handler_alias) = Alias::create(
+			&handler_node,
+			&method_client,
+			INPUT_METHOD_REF_ASPECT_ALIAS_INFO.clone(),
+			Some(&self.handler_aliases),
+		) else {
+			return;
+		};
+
+		let Some(handler_field_node) = handler.field.spatial.node() else {
+			return;
+		};
+		// Handler's field
+		let Ok(rx_field_alias) = Alias::create(
+			&handler_field_node,
+			&method_client,
+			FIELD_ALIAS_INFO.clone(),
+			Some(&self.handler_field_aliases),
+		) else {
+			return;
+		};
+
+		let _ = input_method_client::create_handler(&method_node, &handler_alias, &rx_field_alias);
+	}
+	pub(super) fn handle_drop_handler(&self, handler: &InputHandler) {
+		let Some(tx_node) = self.spatial.node() else {
+			return;
+		};
+		let Some(handler_alias) = self.handler_aliases.get_from_aspect(handler) else {
+			return;
+		};
+		let _ = input_method_client::destroy_handler(&tx_node, handler_alias.id);
+		self.handler_aliases.remove_aspect(handler);
+		self.handler_field_aliases
+			.remove_aspect(handler.field.as_ref());
+	}
+
+	pub(super) fn serialize(&self, alias_id: u64, handler: &Arc<InputHandler>) -> InputData {
+		let mut input = self.data.lock().clone();
+		input.transform(self, handler);
+
+		InputData {
+			id: alias_id,
+			input,
+			distance: self.distance(&handler.field),
+			datamap: self.datamap.lock().clone(),
+			order: self
+				.handler_order
+				.lock()
+				.iter()
+				.enumerate()
+				.find(|(_, h)| h.ptr_eq(&Arc::downgrade(handler)))
+				.unwrap()
+				.0 as u32,
+			captured: self.captures.get_valid_contents().contains(handler),
+		}
+	}
+}
+impl Aspect for InputMethod {
+	const NAME: &'static str = "InputMethod";
+}
+impl InputMethodRefAspect for InputMethod {
+	#[doc = "Have the input handler that this method reference came from capture the method for the next frame."]
+	fn request_capture(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		handler: Arc<Node>,
+	) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		let input_handler = handler.get_aspect::<InputHandler>()?;
+
+		input_method
+			.internal_capture_requests
+			.add_raw(&input_handler);
+		Ok(())
+	}
+}
+impl InputMethodAspect for InputMethod {
+	#[doc = "Set the spatial input component of this input method. You must keep the same input data type throughout the entire thing."]
+	fn set_input(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		input: InputDataType,
+	) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		*input_method.data.lock() = input;
+		Ok(())
+	}
+
+	#[doc = "Set the datmap of this input method"]
+	fn set_datamap(node: Arc<Node>, _calling_client: Arc<Client>, datamap: Datamap) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		*input_method.datamap.lock() = datamap;
+		Ok(())
+	}
+
+	#[doc = "Manually set the order of handlers to propagate input to, or else let the server decide."]
+	fn set_handler_order(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		handlers: Vec<Arc<Node>>,
+	) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		let handlers = handlers
+			.into_iter()
+			.filter_map(|p| p.get_aspect::<InputHandler>().ok())
+			.map(|i| Arc::downgrade(&i))
+			.collect::<Vec<_>>();
+
+		*input_method.handler_order.lock() = handlers;
+		Ok(())
+	}
+
+	#[doc = "Set which handlers are captured."]
+	fn set_captures(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		handlers: Vec<Arc<Node>>,
+	) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		input_method.captures.clear();
+		for handler in handlers {
+			let Ok(handler) = handler.get_aspect::<InputHandler>() else {
+				continue;
+			};
+			input_method.captures.add_raw(&handler);
+		}
+		Ok(())
+	}
+}
+impl Drop for InputMethod {
+	fn drop(&mut self) {
+		INPUT_METHOD_REGISTRY.remove(self);
+	}
+}

src/nodes/input/mod.rs

@@ -1,278 +1,152 @@
-pub mod hand;
-pub mod pointer;
-pub mod tip;
+#![allow(clippy::needless_question_mark)]
 
-use self::hand::Hand;
-use self::pointer::Pointer;
-use self::tip::Tip;
+mod hand;
+mod handler;
+mod method;
+mod pointer;
+mod tip;
+
+pub use handler::*;
+pub use method::*;
 
 use super::fields::Field;
-use super::spatial::{find_spatial_parent, parse_transform, Spatial};
-use super::Node;
-use crate::core::client::Client;
-use crate::core::eventloop::FRAME;
-use crate::core::registry::Registry;
-use crate::nodes::fields::find_field;
-use anyhow::{ensure, Result};
-use glam::Mat4;
-use nanoid::nanoid;
-use parking_lot::Mutex;
-use serde::Deserialize;
-use stardust_xr::schemas::flat::{Datamap, InputDataType};
-use stardust_xr::schemas::{flat::InputData, flex::deserialize};
-use stardust_xr::values::Transform;
-use std::ops::Deref;
-use std::sync::atomic::Ordering;
-use std::sync::{Arc, Weak};
+use super::spatial::Spatial;
+use crate::create_interface;
+use crate::nodes::spatial::SPATIAL_ASPECT_ALIAS_INFO;
+use crate::nodes::spatial::SPATIAL_REF_ASPECT_ALIAS_INFO;
+use crate::{core::client::Client, nodes::Node};
+use crate::{core::registry::Registry, nodes::spatial::Transform};
+use color_eyre::eyre::Result;
+use stardust_xr::values::Datamap;
+use std::sync::Arc;
 
 static INPUT_METHOD_REGISTRY: Registry<InputMethod> = Registry::new();
-static INPUT_HANDLER_REGISTRY: Registry<InputHandler> = Registry::new();
+pub static INPUT_HANDLER_REGISTRY: Registry<InputHandler> = Registry::new();
 
-pub trait InputSpecialization: Send + Sync {
+stardust_xr_server_codegen::codegen_input_protocol!();
+
+pub trait InputDataTrait {
+	fn transform(&mut self, method: &InputMethod, handler: &InputHandler);
 	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32;
-	fn serialize(
-		&self,
-		distance_link: &DistanceLink,
-		local_to_handler_matrix: Mat4,
-	) -> InputDataType;
 }
-pub enum InputType {
-	Pointer(Pointer),
-	Hand(Box<Hand>),
-	Tip(Tip),
-}
-impl Deref for InputType {
-	type Target = dyn InputSpecialization;
-	fn deref(&self) -> &Self::Target {
+impl InputDataTrait for InputDataType {
+	fn transform(&mut self, method: &InputMethod, handler: &InputHandler) {
 		match self {
-			InputType::Pointer(p) => p,
-			InputType::Hand(h) => h.as_ref(),
-			InputType::Tip(t) => t,
+			InputDataType::Pointer(i) => i.transform(method, handler),
+			InputDataType::Hand(i) => i.transform(method, handler),
+			InputDataType::Tip(i) => i.transform(method, handler),
+		}
+	}
+
+	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
+		match self {
+			InputDataType::Pointer(i) => i.distance(space, field),
+			InputDataType::Hand(i) => i.distance(space, field),
+			InputDataType::Tip(i) => i.distance(space, field),
 		}
 	}
 }
 
-pub struct InputMethod {
-	pub uid: String,
-	pub enabled: Mutex<bool>,
-	pub spatial: Arc<Spatial>,
-	pub specialization: Mutex<InputType>,
-	pub captures: Registry<InputHandler>,
-	pub datamap: Mutex<Option<Datamap>>,
-}
-impl InputMethod {
-	pub fn new(spatial: Arc<Spatial>, specialization: InputType) -> Arc<InputMethod> {
-		let method = InputMethod {
-			uid: nanoid!(),
-			enabled: Mutex::new(true),
-			spatial,
-			specialization: Mutex::new(specialization),
-			captures: Registry::new(),
-			datamap: Mutex::new(None),
-		};
-		INPUT_METHOD_REGISTRY.add(method)
-	}
-	#[allow(dead_code)]
-	pub fn add_to(
-		node: &Arc<Node>,
-		specialization: InputType,
-		datamap: Option<Datamap>,
-	) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-
-		node.add_local_signal("setDatamap", InputMethod::set_datamap);
-
-		let method = InputMethod {
-			uid: node.uid.clone(),
-			enabled: Mutex::new(true),
-			spatial: node.spatial.get().unwrap().clone(),
-			specialization: Mutex::new(specialization),
-			captures: Registry::new(),
-			datamap: Mutex::new(datamap),
-		};
-		let method = INPUT_METHOD_REGISTRY.add(method);
-		let _ = node.input_method.set(method);
-		Ok(())
-	}
-
-	fn set_datamap(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		node.input_method
-			.get()
-			.unwrap()
-			.datamap
-			.lock()
-			.replace(Datamap::new(data.to_vec())?);
-		Ok(())
-	}
-
-	fn distance(&self, to: &Field) -> f32 {
-		self.specialization.lock().distance(&self.spatial, to)
-	}
-}
-impl Drop for InputMethod {
-	fn drop(&mut self) {
-		INPUT_METHOD_REGISTRY.remove(self);
-	}
-}
-
-pub struct DistanceLink {
-	pub distance: f32,
-	pub method: Arc<InputMethod>,
-	pub handler: Arc<InputHandler>,
-	pub handler_field: Arc<Field>,
-}
-impl DistanceLink {
-	fn from(method: Arc<InputMethod>, handler: Arc<InputHandler>) -> Option<Self> {
-		let handler_field = handler.field.upgrade()?;
-		Some(DistanceLink {
-			distance: method.distance(&handler_field),
-			method,
-			handler,
-			handler_field,
-		})
-	}
-
-	fn send_input(&self, frame: u64, datamap: Datamap) {
-		self.handler.send_input(frame, self, datamap);
-	}
-	fn serialize(&self, datamap: Datamap) -> Vec<u8> {
-		let input = self.method.specialization.lock().serialize(
-			self,
-			Spatial::space_to_space_matrix(Some(&self.method.spatial), Some(&self.handler.spatial)),
-		);
-
-		let root = InputData {
-			uid: self.method.uid.clone(),
-			input,
-			distance: self.distance,
-			datamap,
-		};
-		root.serialize()
-	}
-}
-
-pub struct InputHandler {
-	node: Weak<Node>,
-	spatial: Arc<Spatial>,
-	pub field: Weak<Field>,
-}
-impl InputHandler {
-	pub fn add_to(node: &Arc<Node>, field: &Arc<Field>) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-
-		let handler = InputHandler {
-			node: Arc::downgrade(node),
-			spatial: node.spatial.get().unwrap().clone(),
-			field: Arc::downgrade(field),
-		};
-		let handler = INPUT_HANDLER_REGISTRY.add(handler);
-		let _ = node.input_handler.set(handler);
-		Ok(())
-	}
-
-	fn send_input(&self, frame: u64, distance_link: &DistanceLink, datamap: Datamap) {
-		let data = distance_link.serialize(datamap);
-		let node = self.node.upgrade().unwrap();
-		let method = Arc::downgrade(&distance_link.method);
-		let handler = Arc::downgrade(&distance_link.handler);
-
-		tokio::spawn(async move {
-			let data = node.execute_remote_method("input", data).await;
-			if frame == FRAME.load(Ordering::Relaxed) {
-				if let Ok(data) = data {
-					let capture = flexbuffers::Reader::get_root(data.as_slice())
-						.and_then(|data| data.get_bool())
-						.unwrap_or(false);
-
-					if let Some(method) = method.upgrade() {
-						if let Some(handler) = handler.upgrade() {
-							if capture {
-								method.captures.add_raw(&handler);
-							}
-						}
-					}
-				}
-			}
-		});
-	}
-}
-impl Drop for InputHandler {
-	fn drop(&mut self) {
-		INPUT_HANDLER_REGISTRY.remove(self);
-	}
-}
-
-pub fn create_interface(client: &Arc<Client>) {
-	let node = Node::create(client, "", "input", false);
-	node.add_local_signal("createInputHandler", create_input_handler_flex);
-	node.add_local_signal("createInputMethodTip", tip::create_tip_flex);
-	node.add_to_scenegraph();
-}
-
-pub fn create_input_handler_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	data: &[u8],
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateInputHandlerInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
+create_interface!(InputInterface);
+pub struct InputInterface;
+impl InterfaceAspect for InputInterface {
+	#[doc = "Create an input method node"]
+	fn create_input_method(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
 		transform: Transform,
-		field_path: &'a str,
-	}
-	let info: CreateInputHandlerInfo = deserialize(data)?;
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false)?;
-	let field = find_field(&calling_client, info.field_path)?;
+		initial_data: InputDataType,
+		datamap: Datamap,
+	) -> Result<()> {
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
 
-	let node = Node::create(&calling_client, "/input/handler", info.name, true).add_to_scenegraph();
-	Spatial::add_to(&node, Some(parent), transform)?;
-	InputHandler::add_to(&node, &field)?;
-	Ok(())
+		let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		InputMethod::add_to(&node, initial_data, datamap)?;
+		Ok(())
+	}
+
+	#[doc = "Create an input handler node"]
+	fn create_input_handler(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		field: Arc<Node>,
+	) -> Result<()> {
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
+		let field = field.get_aspect::<Field>()?;
+
+		let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		InputHandler::add_to(&node, &field)?;
+		Ok(())
+	}
 }
 
+#[tracing::instrument(level = "debug")]
 pub fn process_input() {
-	for method in INPUT_METHOD_REGISTRY
+	// Iterate over all valid input methods
+	let methods = INPUT_METHOD_REGISTRY
 		.get_valid_contents()
 		.into_iter()
-		.filter(|method| *method.enabled.lock())
-		.filter(|method| method.datamap.lock().is_some())
-	{
-		let mut distance_links: Vec<DistanceLink> = INPUT_HANDLER_REGISTRY
-			.get_valid_contents()
-			.into_iter()
-			.filter(|handler| handler.field.upgrade().is_some())
-			.filter_map(|handler| DistanceLink::from(method.clone(), handler))
-			.collect();
-		distance_links.sort_unstable_by(|a, b| {
-			a.distance
-				.abs()
-				.partial_cmp(&b.distance.abs())
-				.unwrap()
-				.reverse()
+		.filter(|method| {
+			let Some(node) = method.spatial.node() else {
+				return false;
+			};
+			node.enabled()
 		});
-
-		let mut last_distance = 0.0;
-		let frame = FRAME.load(Ordering::Relaxed);
-		let captures = method.captures.get_valid_contents();
-		for distance_link in distance_links {
-			distance_link.send_input(frame, method.datamap.lock().clone().unwrap());
-			if last_distance != distance_link.distance
-				&& captures
-					.iter()
-					.any(|c| Arc::ptr_eq(c, &distance_link.handler))
-			{
-				break;
-			}
-			last_distance = distance_link.distance;
+	for handler in INPUT_HANDLER_REGISTRY.get_valid_contents() {
+		for method_alias in handler.method_aliases.get_aliases() {
+			method_alias.set_enabled(false);
 		}
-		method.captures.clear();
+
+		let Some(handler_node) = handler.spatial.node() else {
+			continue;
+		};
+		if !handler_node.enabled() {
+			continue;
+		}
+		if let Some(handler_field_node) = handler.field.spatial.node() {
+			if !handler_field_node.enabled() {
+				continue;
+			}
+		};
+
+		let (methods, datas) = methods
+			.clone()
+			// filter out methods without the handler in their handler order
+			.filter(|a| {
+				a.handler_order
+					.lock()
+					.iter()
+					.any(|h| h.ptr_eq(&Arc::downgrade(&handler)))
+			})
+			// filter out methods without the proper alias
+			.filter_map(|m| {
+				Some((
+					handler
+						.method_aliases
+						.get_from_original_node(m.spatial.node.clone())?,
+					m,
+				))
+			})
+			// make sure the input method alias is enabled
+			.inspect(|(a, _)| {
+				a.set_enabled(true);
+			})
+			// serialize the data
+			.map(|(a, m)| (a.clone(), m.serialize(a.get_id(), &handler)))
+			.unzip::<_, _, Vec<_>, Vec<_>>();
+
+		let _ = input_handler_client::input(&handler_node, &methods, &datas);
+	}
+	for method in methods {
+		method.internal_capture_requests.clear();
 	}
 }

src/nodes/input/pointer.rs

@@ -1,54 +1,52 @@
-use super::{DistanceLink, InputSpecialization};
-use crate::nodes::fields::{ray_march, Field, Ray, RayMarchResult};
-use crate::nodes::spatial::Spatial;
-use glam::{vec3, Mat4};
-use stardust_xr::schemas::flat::{InputDataType, Pointer as FlatPointer};
-use std::sync::Arc;
+use super::{InputDataTrait, InputHandler, InputMethod, Pointer};
+use crate::nodes::{
+	fields::{Field, FieldTrait, Ray, RayMarchResult},
+	spatial::Spatial,
+};
+use glam::{vec3, Mat4, Quat};
+use std::sync::{Arc, Weak};
 
-#[derive(Default)]
-pub struct Pointer {}
-// impl Default for Pointer {
-// 	fn default() -> Self {
-// 		Pointer {
-// 			grab: Default::default(),
-// 			select: Default::default(),
-// 		}
-// 	}
-// }
-impl Pointer {
-	fn ray_march(&self, space: &Arc<Spatial>, field: &Field) -> RayMarchResult {
-		ray_march(
-			Ray {
-				origin: vec3(0_f32, 0_f32, 0_f32),
-				direction: vec3(0_f32, 0_f32, 1_f32),
-				space: space.clone(),
-			},
-			field,
-		)
+impl Default for Pointer {
+	fn default() -> Self {
+		Pointer {
+			origin: [0.0; 3].into(),
+			orientation: Quat::IDENTITY.into(),
+			deepest_point: [0.0; 3].into(),
+		}
 	}
 }
-
-impl InputSpecialization for Pointer {
-	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
-		self.ray_march(space, field).distance
-	}
-	fn serialize(
-		&self,
-		distance_link: &DistanceLink,
-		local_to_handler_matrix: Mat4,
-	) -> InputDataType {
-		let (_, orientation, origin) = local_to_handler_matrix.to_scale_rotation_translation();
-		let direction = local_to_handler_matrix.transform_vector3(vec3(0_f32, 0_f32, 1_f32));
-		let ray_march = self.ray_march(
-			&distance_link.method.spatial,
-			&distance_link.handler.field.upgrade().unwrap(),
-		);
-		let deepest_point = (direction * ray_march.deepest_point_distance) + origin;
-
-		InputDataType::Pointer(FlatPointer {
-			origin: origin.into(),
-			orientation: orientation.into(),
-			deepest_point: deepest_point.into(),
+impl Pointer {
+	fn ray_march(&self, method_space: &Arc<Spatial>, field: &Field) -> RayMarchResult {
+		field.ray_march(Ray {
+			origin: vec3(0.0, 0.0, 0.0),
+			direction: vec3(0.0, 0.0, -1.0),
+			space: Spatial::new(
+				Weak::new(),
+				Some(method_space.clone()),
+				Mat4::from_rotation_translation(self.orientation.into(), self.origin.into()),
+			),
 		})
 	}
 }
+impl InputDataTrait for Pointer {
+	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
+		let ray_info = self.ray_march(space, field);
+		ray_info.min_distance
+	}
+	fn transform(&mut self, method: &InputMethod, handler: &InputHandler) {
+		let local_to_handler_matrix =
+			Mat4::from_rotation_translation(self.orientation.into(), self.origin.into())
+				* Spatial::space_to_space_matrix(Some(&method.spatial), Some(&handler.spatial));
+		let (_, orientation, origin) = local_to_handler_matrix.to_scale_rotation_translation();
+
+		let ray_march = self.ray_march(&method.spatial, &handler.field);
+		let direction = local_to_handler_matrix
+			.transform_vector3(vec3(0.0, 0.0, -1.0))
+			.normalize();
+		let deepest_point = (direction * ray_march.deepest_point_distance) + origin;
+
+		self.origin = origin.into();
+		self.orientation = orientation.into();
+		self.deepest_point = deepest_point.into();
+	}
+}

src/nodes/input/tip.rs

@@ -1,70 +1,29 @@
-use super::{DistanceLink, InputSpecialization};
-use crate::core::client::Client;
-use crate::nodes::fields::Field;
-use crate::nodes::input::{InputMethod, InputType};
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use crate::nodes::Node;
-use anyhow::Result;
-use glam::{vec3a, Mat4};
-use serde::Deserialize;
-use stardust_xr::schemas::flat::{Datamap, InputDataType, Tip as FlatTip};
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
+use super::{InputDataTrait, InputHandler, InputMethod, Tip};
+use crate::nodes::{
+	fields::{Field, FieldTrait},
+	spatial::Spatial,
+};
+use glam::{Mat4, Quat};
 use std::sync::Arc;
 
-#[derive(Default)]
-pub struct Tip {
-	pub radius: f32,
-}
-impl Tip {
-	fn set_radius(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		if let InputType::Tip(tip) = &mut *node.input_method.get().unwrap().specialization.lock() {
-			tip.radius = deserialize(data)?;
+impl Default for Tip {
+	fn default() -> Self {
+		Tip {
+			origin: [0.0; 3].into(),
+			orientation: Quat::IDENTITY.into(),
 		}
-		Ok(())
 	}
 }
-impl InputSpecialization for Tip {
+impl InputDataTrait for Tip {
 	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
-		field.distance(space, vec3a(0.0, 0.0, 0.0))
+		field.distance(space, self.origin.into())
 	}
-	fn serialize(
-		&self,
-		_distance_link: &DistanceLink,
-		local_to_handler_matrix: Mat4,
-	) -> InputDataType {
+	fn transform(&mut self, method: &InputMethod, handler: &InputHandler) {
+		let local_to_handler_matrix =
+			Spatial::space_to_space_matrix(Some(&method.spatial), Some(&handler.spatial))
+				* Mat4::from_rotation_translation(self.orientation.into(), self.origin.into());
 		let (_, orientation, origin) = local_to_handler_matrix.to_scale_rotation_translation();
-		InputDataType::Tip(FlatTip {
-			origin: origin.into(),
-			orientation: orientation.into(),
-			radius: self.radius,
-		})
+		self.origin = origin.into();
+		self.orientation = orientation.into();
 	}
 }
-
-pub fn create_tip_flex(_node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateTipInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		radius: f32,
-		datamap: Option<Vec<u8>>,
-	}
-	let info: CreateTipInfo = deserialize(data)?;
-	let node = Node::create(&calling_client, "/input/method/tip", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false)?;
-
-	let node = node.add_to_scenegraph();
-	Spatial::add_to(&node, Some(parent), transform)?;
-	InputMethod::add_to(
-		&node,
-		InputType::Tip(Tip {
-			radius: info.radius,
-		}),
-		info.datamap.and_then(|datamap| Datamap::new(datamap).ok()),
-	)?;
-	node.add_local_signal("setRadius", Tip::set_radius);
-	Ok(())
-}

src/nodes/items/camera.rs

@@ -0,0 +1,231 @@
+use super::{
+	create_item_acceptor_flex, register_item_ui_flex, Item, ItemAcceptor, ItemInterface, ItemType,
+};
+use crate::nodes::items::ITEM_ACCEPTOR_ASPECT_ALIAS_INFO;
+use crate::nodes::items::ITEM_ASPECT_ALIAS_INFO;
+use crate::{
+	core::{client::Client, registry::Registry, scenegraph::MethodResponseSender},
+	create_interface,
+	nodes::{
+		drawable::{
+			model::{MaterialWrapper, ModelPart},
+			shaders::UNLIT_SHADER_BYTES,
+		},
+		items::TypeInfo,
+		spatial::{Spatial, Transform},
+		Message, Node,
+	},
+};
+use color_eyre::eyre::{bail, eyre, Result};
+use glam::Mat4;
+use lazy_static::lazy_static;
+use mint::{ColumnMatrix4, Vector2};
+use once_cell::sync::OnceCell;
+use parking_lot::Mutex;
+
+use stardust_xr::schemas::flex::{deserialize, serialize};
+use std::sync::Arc;
+use stereokit_rust::{
+	material::{Material, Transparency},
+	shader::Shader,
+	sk::MainThreadToken,
+	system::Renderer,
+	tex::{Tex, TexFormat, TexType},
+	util::Color128,
+};
+use tracing::error;
+
+pub struct TexWrapper(pub Tex);
+unsafe impl Send for TexWrapper {}
+unsafe impl Sync for TexWrapper {}
+
+stardust_xr_server_codegen::codegen_item_camera_protocol!();
+lazy_static! {
+	pub(super) static ref ITEM_TYPE_INFO_CAMERA: TypeInfo = TypeInfo {
+		type_name: "camera",
+		alias_info: CAMERA_ITEM_ASPECT_ALIAS_INFO.clone(),
+		ui_node_id: INTERFACE_NODE_ID,
+		ui: Default::default(),
+		items: Registry::new(),
+		acceptors: Registry::new(),
+		new_acceptor_fn: |node, acceptor, acceptor_field| {
+			let _ = camera_item_ui_client::create_acceptor(node, acceptor, acceptor_field);
+		}
+	};
+}
+
+struct FrameInfo {
+	proj_matrix: Mat4,
+	px_size: Vector2<u32>,
+}
+
+pub struct CameraItem {
+	space: Arc<Spatial>,
+	frame_info: Mutex<FrameInfo>,
+	sk_tex: OnceCell<TexWrapper>,
+	sk_mat: OnceCell<Arc<MaterialWrapper>>,
+	applied_to: Registry<ModelPart>,
+	apply_to: Registry<ModelPart>,
+}
+#[allow(unused)]
+impl CameraItem {
+	pub fn add_to(node: &Arc<Node>, proj_matrix: Mat4, px_size: Vector2<u32>) {
+		Item::add_to(
+			node,
+			&ITEM_TYPE_INFO_CAMERA,
+			ItemType::Camera(CameraItem {
+				space: node.get_aspect::<Spatial>().unwrap().clone(),
+				frame_info: Mutex::new(FrameInfo {
+					proj_matrix,
+					px_size,
+				}),
+				sk_tex: OnceCell::new(),
+				sk_mat: OnceCell::new(),
+				applied_to: Registry::new(),
+				apply_to: Registry::new(),
+			}),
+		);
+		// <CameraItem as CameraItemAspect>::node_methods(node);
+	}
+
+	fn frame_flex(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		_message: Message,
+		response: MethodResponseSender,
+	) {
+		response.wrap_sync(move || {
+			let ItemType::Camera(_camera) = &node.get_aspect::<Item>().unwrap().specialization
+			else {
+				return Err(eyre!("Wrong item type?"));
+			};
+			Ok(serialize(())?.into())
+		});
+	}
+
+	fn apply_preview_material_flex(
+		node: Arc<Node>,
+		calling_client: Arc<Client>,
+		message: Message,
+	) -> Result<()> {
+		let ItemType::Camera(camera) = &node.get_aspect::<Item>().unwrap().specialization else {
+			bail!("Wrong item type?")
+		};
+		let model_part_node =
+			calling_client.get_node("Model part", deserialize(&message.data).unwrap())?;
+		let model_part = model_part_node.get_aspect::<ModelPart>()?;
+		camera.applied_to.add_raw(&model_part);
+		camera.apply_to.add_raw(&model_part);
+		Ok(())
+	}
+
+	pub fn send_ui_item_created(&self, node: &Node, item: &Arc<Node>) {
+		let _ = camera_item_ui_client::create_item(node, item);
+	}
+	pub fn send_acceptor_item_created(&self, node: &Node, item: &Arc<Node>) {
+		let _ = camera_item_acceptor_client::capture_item(node, item);
+	}
+
+	pub fn update(&self, token: &MainThreadToken) {
+		let frame_info = self.frame_info.lock();
+		let sk_tex = self.sk_tex.get_or_init(|| {
+			TexWrapper(Tex::gen_color(
+				Color128::default(),
+				frame_info.px_size.x as i32,
+				frame_info.px_size.y as i32,
+				TexType::Rendertarget,
+				TexFormat::RGBA32Linear,
+			))
+		});
+		let sk_mat = self
+			.sk_mat
+			.get_or_try_init(|| -> Result<Arc<MaterialWrapper>> {
+				let shader = Shader::from_memory(UNLIT_SHADER_BYTES)?;
+				let mut mat = Material::new(&shader, None);
+				mat.get_all_param_info().set_texture("diffuse", &sk_tex.0);
+				mat.transparency(Transparency::Blend);
+				Ok(Arc::new(MaterialWrapper(mat)))
+			});
+		let Ok(sk_mat) = sk_mat else {
+			error!("unable to make camera item stereokit texture");
+			return;
+		};
+		for model_part in self.apply_to.take_valid_contents() {
+			model_part.replace_material(sk_mat.clone())
+		}
+
+		if !self.applied_to.is_empty() {
+			Renderer::render_to(
+				token,
+				&sk_tex.0,
+				self.space.global_transform(),
+				frame_info.proj_matrix,
+				None,
+				None,
+				None,
+			)
+		}
+	}
+}
+impl CameraItemAspect for CameraItem {}
+
+impl CameraItemAcceptorAspect for ItemAcceptor {
+	fn capture_item(node: Arc<Node>, _calling_client: Arc<Client>, item: Arc<Node>) -> Result<()> {
+		super::acceptor_capture_item_flex(node, item)
+	}
+}
+
+pub fn update(token: &MainThreadToken) {
+	for camera in ITEM_TYPE_INFO_CAMERA.items.get_valid_contents() {
+		let ItemType::Camera(camera) = &camera.specialization else {
+			continue;
+		};
+		camera.update(token);
+	}
+}
+
+create_interface!(ItemInterface);
+impl InterfaceAspect for ItemInterface {
+	#[doc = "Create a camera item at a specific location"]
+	fn create_camera_item(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		proj_matrix: ColumnMatrix4<f32>,
+		px_size: Vector2<u32>,
+	) -> Result<()> {
+		let space = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, false);
+
+		let node = Node::from_id(&calling_client, id, false).add_to_scenegraph()?;
+		Spatial::add_to(&node, None, transform * space.global_transform(), false);
+		CameraItem::add_to(&node, proj_matrix.into(), px_size);
+		Ok(())
+	}
+
+	#[doc = "Register this client to manage camera items and create default 3D UI for them."]
+	fn register_camera_item_ui(_node: Arc<Node>, calling_client: Arc<Client>) -> Result<()> {
+		register_item_ui_flex(calling_client, &ITEM_TYPE_INFO_CAMERA)
+	}
+
+	#[doc = "Create an item acceptor to allow temporary ownership of a given type of item. Creates a node at `/item/camera/acceptor/<name>`."]
+	fn create_camera_item_acceptor(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		field: Arc<Node>,
+	) -> Result<()> {
+		create_item_acceptor_flex(
+			calling_client,
+			id,
+			parent,
+			transform,
+			&ITEM_TYPE_INFO_CAMERA,
+			field,
+		)
+	}
+}

src/nodes/items/environment.rs

@@ -1,85 +0,0 @@
-use super::{Item, ItemSpecialization, ItemType, ITEM_TYPE_INFO_ENVIRONMENT};
-use crate::{
-	core::client::{Client, INTERNAL_CLIENT},
-	nodes::{
-		spatial::{find_spatial_parent, parse_transform, Spatial},
-		Node,
-	},
-};
-use anyhow::{anyhow, Result};
-use serde::Deserialize;
-use stardust_xr::{
-	schemas::flex::{deserialize, serialize},
-	values::Transform,
-};
-use std::sync::Arc;
-
-pub struct EnvironmentItem {
-	path: String,
-}
-impl EnvironmentItem {
-	pub fn add_to(node: &Arc<Node>, path: String) {
-		Item::add_to(
-			node,
-			&ITEM_TYPE_INFO_ENVIRONMENT,
-			ItemType::Environment(EnvironmentItem { path }),
-		);
-		node.add_local_method("getPath", EnvironmentItem::get_path_flex);
-	}
-
-	fn get_path_flex(node: &Node, _calling_client: Arc<Client>, _data: &[u8]) -> Result<Vec<u8>> {
-		let path: Result<String> = match &node.item.get().unwrap().specialization {
-			ItemType::Environment(env) => Ok(env.path.clone()),
-			_ => Err(anyhow!("")),
-		};
-		Ok(flexbuffers::singleton(path?.as_str()))
-	}
-}
-impl ItemSpecialization for EnvironmentItem {
-	fn serialize_start_data(&self, id: &str) -> Vec<u8> {
-		serialize((id, self.path.as_str())).unwrap()
-	}
-}
-
-pub(super) fn create_environment_item_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	data: &[u8],
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateEnvironmentItemInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		item_data: String,
-	}
-	let info: CreateEnvironmentItemInfo = deserialize(data)?;
-	let parent_name = format!("/item/{}/item/", ITEM_TYPE_INFO_ENVIRONMENT.type_name);
-	let node = Node::create(&INTERNAL_CLIENT, &parent_name, info.name, true);
-	let space = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false)?;
-	let node = node.add_to_scenegraph();
-	Spatial::add_to(&node, None, transform * space.global_transform())?;
-	EnvironmentItem::add_to(&node, info.item_data);
-	node.item
-		.get()
-		.unwrap()
-		.make_alias(&calling_client, &parent_name);
-	Ok(())
-}
-
-pub(super) fn create_environment_item_acceptor_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	data: &[u8],
-) -> Result<()> {
-	super::create_item_acceptor_flex(calling_client, data, &ITEM_TYPE_INFO_ENVIRONMENT)
-}
-
-pub(super) fn register_environment_item_ui_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	_data: &[u8],
-) -> Result<()> {
-	super::register_item_ui_flex(calling_client, &ITEM_TYPE_INFO_ENVIRONMENT)
-}

src/nodes/items/mod.rs

@@ -1,100 +1,68 @@
-mod environment;
+pub mod camera;
+pub mod panel;
 
-use self::environment::EnvironmentItem;
-use super::fields::Field;
-use super::spatial::{find_spatial_parent, parse_transform, Spatial};
-use super::{Alias, Node};
-use crate::core::client::{Client, INTERNAL_CLIENT};
-use crate::core::nodelist::LifeLinkedNodeList;
+use self::camera::CameraItem;
+use self::panel::PanelItemTrait;
+use super::alias::AliasList;
+use super::fields::{Field, FIELD_ALIAS_INFO};
+use super::spatial::Spatial;
+use super::{Alias, Aspect, Node};
+use crate::core::client::Client;
 use crate::core::registry::Registry;
 use crate::nodes::alias::AliasInfo;
-use crate::nodes::fields::find_field;
-use crate::wayland::panel_item::{register_panel_item_ui_flex, PanelItem};
-use anyhow::{anyhow, ensure, Result};
-use lazy_static::lazy_static;
-use nanoid::nanoid;
+use crate::nodes::spatial::Transform;
+use crate::nodes::spatial::SPATIAL_ASPECT_ALIAS_INFO;
+use color_eyre::eyre::{ensure, Result};
 use parking_lot::Mutex;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
-
-use std::ops::Deref;
+use std::hash::Hash;
 use std::sync::{Arc, Weak};
 
-lazy_static! {
-	static ref ITEM_ALIAS_LOCAL_SIGNALS: Vec<&'static str> = vec![
-		"getTransform",
-		"setTransform",
-		"setSpatialParent",
-		"setSpatialParentInPlace",
-		"setZoneable",
-		"release",
-	];
-	static ref ITEM_ALIAS_LOCAL_METHODS: Vec<&'static str> = vec!["captureInto"];
-	static ref ITEM_ALIAS_REMOTE_SIGNALS: Vec<&'static str> = vec![];
-	static ref ITEM_ALIAS_REMOTE_METHODS: Vec<&'static str> = vec![];
-	static ref ITEM_TYPE_INFO_ENVIRONMENT: TypeInfo = TypeInfo {
-		type_name: "environment",
-		aliased_local_signals: vec!["applySkyTex", "applySkyLight"],
-		aliased_local_methods: vec![],
-		aliased_remote_signals: vec![],
-		aliased_remote_methods: vec![],
-		ui: Default::default(),
-		items: Registry::new(),
-		acceptors: Registry::new(),
-	};
-}
+stardust_xr_server_codegen::codegen_item_protocol!();
 
 fn capture(item: &Arc<Item>, acceptor: &Arc<ItemAcceptor>) {
-	if item.captured_acceptor.lock().upgrade().is_some() {
+	if item.captured_acceptor.lock().strong_count() > 0 {
 		release(item);
 	}
 	*item.captured_acceptor.lock() = Arc::downgrade(acceptor);
 	acceptor.handle_capture(item);
 	if let Some(ui) = item.type_info.ui.lock().upgrade() {
-		ui.handle_capture(item);
+		ui.handle_capture_item(item, acceptor);
 	}
 }
-fn release(item: &Arc<Item>) {
-	if let Some(acceptor) = item.captured_acceptor.lock().upgrade() {
-		*item.captured_acceptor.lock() = Weak::default();
+fn release(item: &Item) {
+	let mut captured_acceptor = item.captured_acceptor.lock();
+	if let Some(acceptor) = captured_acceptor.upgrade().as_ref() {
+		*captured_acceptor = Weak::default();
 		acceptor.handle_release(item);
 		if let Some(ui) = item.type_info.ui.lock().upgrade() {
-			ui.handle_release(item);
+			ui.handle_release_item(item, acceptor);
 		}
 	}
 }
 
 pub struct TypeInfo {
 	pub type_name: &'static str,
-	pub aliased_local_signals: Vec<&'static str>,
-	pub aliased_local_methods: Vec<&'static str>,
-	pub aliased_remote_signals: Vec<&'static str>,
-	pub aliased_remote_methods: Vec<&'static str>,
+	pub alias_info: AliasInfo,
+	pub ui_node_id: u64,
 	pub ui: Mutex<Weak<ItemUI>>,
 	pub items: Registry<Item>,
 	pub acceptors: Registry<ItemAcceptor>,
+	pub new_acceptor_fn: fn(node: &Node, acceptor: &Arc<Node>, acceptor_field: &Arc<Node>),
 }
-
-fn capture_into_flex(node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-	let acceptor_path = flexbuffers::Reader::get_root(data)?
-		.get_str()
-		.map_err(|_| anyhow!("Acceptor path is not a string"))?;
-	let acceptor = calling_client
-		.scenegraph
-		.get_node(acceptor_path)
-		.ok_or_else(|| anyhow!("Acceptor node not found"))?;
-	let acceptor = acceptor
-		.item_acceptor
-		.get()
-		.ok_or_else(|| anyhow!("Acceptor node is not an acceptor!"))?;
-	capture(node.item.get().unwrap(), acceptor);
-	Ok(())
+impl Hash for TypeInfo {
+	fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+		self.type_name.hash(state);
+	}
 }
+impl PartialEq for TypeInfo {
+	fn eq(&self, other: &Self) -> bool {
+		self.type_name == other.type_name
+	}
+}
+impl Eq for TypeInfo {}
 
 pub struct Item {
-	node: Weak<Node>,
-	uid: String,
+	spatial: Arc<Spatial>,
 	type_info: &'static TypeInfo,
 	captured_acceptor: Mutex<Weak<ItemAcceptor>>,
 	pub specialization: ItemType,
@@ -105,81 +73,96 @@ impl Item {
 		type_info: &'static TypeInfo,
 		specialization: ItemType,
 	) -> Arc<Self> {
-		node.add_local_signal("captureInto", capture_into_flex);
 		let item = Item {
-			node: Arc::downgrade(node),
-			uid: nanoid!(),
+			spatial: node.aspects.get::<Spatial>().unwrap(),
 			type_info,
 			captured_acceptor: Default::default(),
 			specialization,
 		};
 		let item = type_info.items.add(item);
+
+		<Item as ItemAspect>::add_node_members(node);
 		if let Some(ui) = type_info.ui.lock().upgrade() {
 			ui.handle_create_item(&item);
 		}
-		let _ = node.item.set(item.clone());
+		node.add_aspect_raw(item.clone());
+
+		// if let Some(auto_acceptor) = node.get_client().and_then(|client| {
+		// 	client
+		// 		.state
+		// 		.as_ref()
+		// 		.and_then(|settings| settings.acceptors.get(type_info))
+		// 		.and_then(|acceptor| acceptor.upgrade())
+		// }) {
+		// 	capture(&item, &auto_acceptor);
+		// }
+
 		item
 	}
-	fn make_alias(&self, client: &Arc<Client>, parent: &str) -> (Arc<Node>, Arc<Alias>) {
-		let node = Alias::new(
+	fn make_alias(&self, client: &Arc<Client>, alias_list: &AliasList) -> Result<Arc<Node>> {
+		Alias::create(
+			&self.spatial.node().unwrap(),
 			client,
-			parent,
-			&self.uid,
-			&self.node.upgrade().unwrap(),
-			AliasInfo {
-				local_signals: [
-					&self.type_info.aliased_local_signals,
-					ITEM_ALIAS_LOCAL_SIGNALS.as_slice(),
-				]
-				.concat(),
-				local_methods: [
-					&self.type_info.aliased_local_methods,
-					ITEM_ALIAS_LOCAL_METHODS.as_slice(),
-				]
-				.concat(),
-				remote_signals: [
-					&self.type_info.aliased_remote_signals,
-					ITEM_ALIAS_REMOTE_SIGNALS.as_slice(),
-				]
-				.concat(),
-			},
-		);
-		let alias = node.alias.get().unwrap().clone();
-		(node, alias)
+			self.type_info.alias_info.clone() + ITEM_ASPECT_ALIAS_INFO.clone(),
+			Some(alias_list),
+		)
+	}
+}
+impl Aspect for Item {
+	const NAME: &'static str = "Item";
+}
+impl ItemAspect for Item {
+	fn release(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let item = node.get_aspect::<Item>()?;
+		release(&item);
+		Ok(())
 	}
 }
 impl Drop for Item {
 	fn drop(&mut self) {
 		self.type_info.items.remove(self);
+		release(self);
 		if let Some(ui) = self.type_info.ui.lock().upgrade() {
 			ui.handle_destroy_item(self);
 		}
 	}
 }
 
-pub trait ItemSpecialization {
-	fn serialize_start_data(&self, id: &str) -> Vec<u8>;
-}
-
 pub enum ItemType {
-	Environment(EnvironmentItem),
-	Panel(PanelItem),
+	Camera(CameraItem),
+	Panel(Arc<dyn PanelItemTrait>),
 }
-impl Deref for ItemType {
-	type Target = dyn ItemSpecialization;
-
-	fn deref(&self) -> &Self::Target {
+impl ItemType {
+	fn send_ui_item_created(&self, node: &Node, item: &Arc<Node>) {
 		match self {
-			ItemType::Environment(item) => item,
-			ItemType::Panel(item) => item,
+			ItemType::Camera(c) => c.send_ui_item_created(node, item),
+			ItemType::Panel(p) => p.send_ui_item_created(node, item),
+		}
+	}
+	fn send_acceptor_item_created(&self, node: &Node, item: &Arc<Node>) {
+		match self {
+			ItemType::Camera(c) => c.send_acceptor_item_created(node, item),
+			ItemType::Panel(p) => p.send_acceptor_item_created(node, item),
 		}
 	}
 }
+// impl Deref for ItemType {
+// 	type Target = dyn ItemSpecialization;
+
+// 	fn deref(&self) -> &Self::Target {
+// 		match self {
+// 			ItemType::Environment(item) => item,
+// 			ItemType::Panel(item) => item.as_ref(),
+// 		}
+// 	}
+// }
 
 pub struct ItemUI {
 	node: Weak<Node>,
 	type_info: &'static TypeInfo,
-	aliases: LifeLinkedNodeList,
+	item_aliases: AliasList,
+	acceptor_aliases: AliasList,
+	acceptor_field_aliases: AliasList,
 }
 impl ItemUI {
 	fn add_to(node: &Arc<Node>, type_info: &'static TypeInfo) -> Result<()> {
@@ -191,59 +174,118 @@ impl ItemUI {
 		let ui = Arc::new(ItemUI {
 			node: Arc::downgrade(node),
 			type_info,
-			aliases: Default::default(),
+			item_aliases: AliasList::default(),
+			acceptor_aliases: AliasList::default(),
+			acceptor_field_aliases: AliasList::default(),
 		});
 		*type_info.ui.lock() = Arc::downgrade(&ui);
-		let _ = node.item_ui.set(ui.clone());
+		node.add_aspect_raw(ui.clone());
 
 		for item in type_info.items.get_valid_contents() {
 			ui.handle_create_item(&item);
 		}
+		for acceptor in type_info.acceptors.get_valid_contents() {
+			ui.handle_create_acceptor(&acceptor);
+		}
 		Ok(())
 	}
-	fn send_state(&self, state: &str, name: &str) {
-		let _ = self
-			.node
-			.upgrade()
-			.unwrap()
-			.send_remote_signal(state, flexbuffers::singleton(name).as_slice());
-	}
 
 	fn handle_create_item(&self, item: &Item) {
-		let node = self.node.upgrade().unwrap();
-		if let Some(client) = node.get_client() {
-			let (alias_node, _) =
-				item.make_alias(&client, &(node.get_path().to_string() + "/item"));
-			self.aliases.add(Arc::downgrade(&alias_node));
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		let Some(client) = node.get_client() else {
+			return;
+		};
 
-			let _ = node.send_remote_signal(
-				"create",
-				&item.specialization.serialize_start_data(&item.uid),
-			);
-		}
+		let Ok(item_alias) = item.make_alias(&client, &self.item_aliases) else {
+			return;
+		};
+
+		item.specialization.send_ui_item_created(&node, &item_alias);
+	}
+	fn handle_capture_item(&self, item: &Item, acceptor: &ItemAcceptor) {
+		let Some(item_alias) = self.item_aliases.get_from_aspect(item) else {
+			return;
+		};
+		let Some(acceptor_alias) = self.acceptor_aliases.get_from_aspect(acceptor) else {
+			return;
+		};
+		let _ = item_ui_client::capture_item(
+			&self.node.upgrade().unwrap(),
+			item_alias.id,
+			acceptor_alias.id,
+		);
+	}
+	fn handle_release_item(&self, item: &Item, acceptor: &ItemAcceptor) {
+		let Some(item_alias) = self.item_aliases.get_from_aspect(item) else {
+			return;
+		};
+		let Some(acceptor_alias) = self.acceptor_aliases.get_from_aspect(acceptor) else {
+			return;
+		};
+		let _ = item_ui_client::release_item(
+			&self.node.upgrade().unwrap(),
+			item_alias.id,
+			acceptor_alias.id,
+		);
 	}
 	fn handle_destroy_item(&self, item: &Item) {
-		self.send_state("destroy", item.uid.as_str());
-	}
-	fn handle_capture(&self, item: &Item) {
-		self.send_state("capture", item.uid.as_str());
-	}
-	fn handle_release(&self, item: &Item) {
-		self.send_state("release", item.uid.as_str());
+		let Some(item_alias) = self
+			.item_aliases
+			.get_from_original_node(item.spatial.node.clone())
+		else {
+			return;
+		};
+		let _ = item_ui_client::destroy_item(&self.node.upgrade().unwrap(), item_alias.id);
+		self.item_aliases.remove_aspect(item);
 	}
 	fn handle_create_acceptor(&self, acceptor: &ItemAcceptor) {
-		let node = self.node.upgrade().unwrap();
-		if let Some(client) = node.get_client() {
-			let aliases = acceptor.make_aliases(
-				&client,
-				&format!("/item/{}/acceptor", self.type_info.type_name),
-			);
-			aliases
-				.iter()
-				.for_each(|alias| self.aliases.add(Arc::downgrade(alias)));
-		}
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		let Some(client) = node.get_client() else {
+			return;
+		};
+
+		let Some(acceptor_node) = acceptor.spatial.node() else {
+			return;
+		};
+		let Ok(acceptor_alias) = Alias::create(
+			&acceptor_node,
+			&client,
+			ITEM_ACCEPTOR_ASPECT_ALIAS_INFO.clone(),
+			Some(&self.acceptor_aliases),
+		) else {
+			return;
+		};
+
+		let Some(acceptor_field_node) = acceptor.field.spatial.node() else {
+			return;
+		};
+		let Ok(acceptor_field_alias) = Alias::create(
+			&acceptor_field_node,
+			&client,
+			FIELD_ALIAS_INFO.clone(),
+			Some(&self.acceptor_aliases),
+		) else {
+			return;
+		};
+
+		(acceptor.type_info.new_acceptor_fn)(&node, &acceptor_alias, &acceptor_field_alias);
 	}
-	fn handle_destroy_acceptor(&self, _acceptor: &ItemAcceptor) {}
+	fn handle_destroy_acceptor(&self, acceptor: &ItemAcceptor) {
+		let acceptor_alias = self.acceptor_aliases.get_from_aspect(acceptor).unwrap();
+		let _ = item_ui_client::destroy_acceptor(&self.node.upgrade().unwrap(), acceptor_alias.id);
+
+		self.acceptor_aliases
+			.remove_aspect(acceptor.spatial.as_ref());
+		self.acceptor_field_aliases
+			.remove_aspect(acceptor.field.as_ref());
+	}
+}
+impl Aspect for ItemUI {
+	const NAME: &'static str = "Item";
 }
 impl Drop for ItemUI {
 	fn drop(&mut self) {
@@ -252,127 +294,103 @@ impl Drop for ItemUI {
 }
 
 pub struct ItemAcceptor {
-	node: Weak<Node>,
-	type_info: &'static TypeInfo,
-	field: Mutex<Weak<Field>>,
-	accepted: Registry<Item>,
+	spatial: Arc<Spatial>,
+	pub type_info: &'static TypeInfo,
+	field: Arc<Field>,
+	accepted_aliases: AliasList,
+	accepted_registry: Registry<Item>,
 }
 impl ItemAcceptor {
-	fn add_to(node: &Arc<Node>, type_info: &'static TypeInfo, field: Weak<Field>) {
+	fn add_to(node: &Arc<Node>, type_info: &'static TypeInfo, field: Arc<Field>) {
 		let acceptor = type_info.acceptors.add(ItemAcceptor {
-			node: Arc::downgrade(node),
+			spatial: node.get_aspect::<Spatial>().unwrap(),
 			type_info,
-			field: Mutex::new(field),
-			accepted: Registry::new(),
+			field,
+			accepted_aliases: AliasList::default(),
+			accepted_registry: Registry::new(),
 		});
 		if let Some(ui) = type_info.ui.lock().upgrade() {
 			ui.handle_create_acceptor(&acceptor);
 		}
-		let _ = node.item_acceptor.set(acceptor);
+		node.add_aspect_raw(acceptor.clone());
 	}
-	fn make_aliases(&self, client: &Arc<Client>, parent: &str) -> Vec<Arc<Node>> {
-		let mut aliases = Vec::new();
-		let acceptor_node = &self.node.upgrade().unwrap();
-		let acceptor_alias = Alias::new(
-			client,
-			parent,
-			acceptor_node.uid.as_str(),
-			acceptor_node,
-			AliasInfo {
-				local_signals: vec!["release"],
-				..Default::default()
-			},
-		);
-		if let Some(field) = self.field.lock().upgrade() {
-			let acceptor_field_alias = Alias::new(
-				client,
-				acceptor_alias.get_path(),
-				"field",
-				&field.spatial_ref().node.upgrade().unwrap(),
-				AliasInfo::default(),
-			);
 
-			aliases.push(acceptor_field_alias);
-		}
-		aliases.push(acceptor_alias);
-		aliases
-	}
-	fn send_event(&self, state: &str, name: &str) {
-		let _ = self
-			.node
-			.upgrade()
-			.unwrap()
-			.send_remote_signal(state, flexbuffers::singleton(name).as_slice());
-	}
 	fn handle_capture(&self, item: &Arc<Item>) {
-		self.accepted.add_raw(item);
-		self.send_event("capture", item.uid.as_str());
+		let Some(node) = self.spatial.node() else {
+			return;
+		};
+		let Some(client) = node.get_client() else {
+			return;
+		};
+
+		self.accepted_registry.add_raw(item);
+		let Ok(alias_node) = item.make_alias(&client, &self.accepted_aliases) else {
+			return;
+		};
+
+		item.specialization
+			.send_acceptor_item_created(&node, &alias_node);
 	}
 	fn handle_release(&self, item: &Item) {
-		self.accepted.remove(item);
-		self.send_event("release", item.uid.as_str());
+		self.accepted_registry.remove(item);
+		self.accepted_aliases.remove_aspect(item);
+
+		let Some(node) = self.spatial.node() else {
+			return;
+		};
+		let alias = self.accepted_aliases.get_from_aspect(item).unwrap();
+		let _ = item_acceptor_client::release_item(&node, alias.id);
 	}
 }
+impl Aspect for ItemAcceptor {
+	const NAME: &'static str = "ItemAcceptor";
+}
+impl ItemAcceptorAspect for ItemAcceptor {}
 impl Drop for ItemAcceptor {
 	fn drop(&mut self) {
 		self.type_info.acceptors.remove(self);
+		for item in self.accepted_registry.get_valid_contents() {
+			release(&item);
+		}
 		if let Some(ui) = self.type_info.ui.lock().upgrade() {
 			ui.handle_destroy_acceptor(self);
 		}
 	}
 }
 
-pub fn create_interface(client: &Arc<Client>) {
-	let node = Node::create(client, "", "item", false);
-	node.add_local_signal(
-		"createEnvironmentItem",
-		environment::create_environment_item_flex,
-	);
-	node.add_local_signal(
-		"registerEnvironmentItemUI",
-		environment::register_environment_item_ui_flex,
-	);
-	node.add_local_signal("registerPanelItemUI", register_panel_item_ui_flex);
-	node.add_local_signal(
-		"createEnvironmentItemAcceptor",
-		environment::create_environment_item_acceptor_flex,
-	);
-	node.add_to_scenegraph();
-}
-
-pub(self) fn create_item_acceptor_flex(
-	calling_client: Arc<Client>,
-	data: &[u8],
-	type_info: &'static TypeInfo,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateItemAcceptorInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		field_path: &'a str,
-	}
-	let info: CreateItemAcceptorInfo = deserialize(data)?;
-	let parent_name = format!("/item/{}/acceptor/", ITEM_TYPE_INFO_ENVIRONMENT.type_name);
-	let space = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false)?;
-	let field = find_field(&calling_client, info.field_path)?;
-
-	let node = Node::create(&INTERNAL_CLIENT, &parent_name, info.name, true).add_to_scenegraph();
-	Spatial::add_to(&node, Some(space), transform)?;
-	ItemAcceptor::add_to(&node, type_info, Arc::downgrade(&field));
-	node.item
-		.get()
-		.unwrap()
-		.make_alias(&calling_client, &parent_name);
-	Ok(())
-}
-
 pub fn register_item_ui_flex(
 	calling_client: Arc<Client>,
 	type_info: &'static TypeInfo,
 ) -> Result<()> {
-	let ui = Node::create(&calling_client, "/item", type_info.type_name, true).add_to_scenegraph();
+	let ui = Node::from_id(&calling_client, type_info.ui_node_id, true).add_to_scenegraph()?;
 	ItemUI::add_to(&ui, type_info)?;
 	Ok(())
 }
+fn create_item_acceptor_flex(
+	calling_client: Arc<Client>,
+	id: u64,
+	parent: Arc<Node>,
+	transform: Transform,
+	type_info: &'static TypeInfo,
+	field: Arc<Node>,
+) -> Result<()> {
+	let space = parent.get_aspect::<Spatial>()?;
+	let field = field.get_aspect::<Field>()?;
+	let transform = transform.to_mat4(true, true, false);
+
+	let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+	Spatial::add_to(&node, Some(space.clone()), transform, false);
+	ItemAcceptor::add_to(&node, type_info, field);
+	Ok(())
+}
+
+fn acceptor_capture_item_flex(node: Arc<Node>, item: Arc<Node>) -> Result<()> {
+	let acceptor = node.get_aspect::<ItemAcceptor>()?;
+	let item = item.get_aspect::<Item>()?;
+	capture(&item, &acceptor);
+
+	Ok(())
+}
+
+struct ItemInterface;
+// create_interface!(ItemInterface);

src/nodes/items/panel.rs

@@ -0,0 +1,463 @@
+use super::{create_item_acceptor_flex, register_item_ui_flex, ItemAcceptor, ItemInterface};
+use crate::nodes::items::ITEM_ACCEPTOR_ASPECT_ALIAS_INFO;
+use crate::nodes::items::ITEM_ASPECT_ALIAS_INFO;
+use crate::{
+	core::{
+		client::{get_env, state, Client, INTERNAL_CLIENT},
+		registry::Registry,
+	},
+	create_interface,
+	nodes::{
+		drawable::model::ModelPart,
+		items::{Item, ItemType, TypeInfo},
+		spatial::{Spatial, Transform},
+		Node,
+	},
+};
+use color_eyre::eyre::Result;
+use glam::Mat4;
+use lazy_static::lazy_static;
+use mint::Vector2;
+use std::sync::{Arc, Weak};
+use tracing::{debug, info};
+
+stardust_xr_server_codegen::codegen_item_panel_protocol!();
+impl Default for Geometry {
+	fn default() -> Self {
+		Geometry {
+			origin: [0, 0].into(),
+			size: [0, 0].into(),
+		}
+	}
+}
+
+lazy_static! {
+	pub static ref ITEM_TYPE_INFO_PANEL: TypeInfo = TypeInfo {
+		type_name: "panel",
+		alias_info: PANEL_ITEM_ASPECT_ALIAS_INFO.clone(),
+		ui_node_id: INTERFACE_NODE_ID,
+		ui: Default::default(),
+		items: Registry::new(),
+		acceptors: Registry::new(),
+		new_acceptor_fn: |node, acceptor, acceptor_field| {
+			let _ = panel_item_ui_client::create_acceptor(node, acceptor, acceptor_field);
+		}
+	};
+}
+
+pub trait Backend: Send + Sync + 'static {
+	fn start_data(&self) -> Result<PanelItemInitData>;
+
+	fn apply_cursor_material(&self, model_part: &Arc<ModelPart>);
+	fn apply_surface_material(&self, surface: SurfaceId, model_part: &Arc<ModelPart>);
+
+	fn close_toplevel(&self);
+	fn auto_size_toplevel(&self);
+	fn set_toplevel_size(&self, size: Vector2<u32>);
+	fn set_toplevel_focused_visuals(&self, focused: bool);
+
+	fn pointer_motion(&self, surface: &SurfaceId, position: Vector2<f32>);
+	fn pointer_button(&self, surface: &SurfaceId, button: u32, pressed: bool);
+	fn pointer_scroll(
+		&self,
+		surface: &SurfaceId,
+		scroll_distance: Option<Vector2<f32>>,
+		scroll_steps: Option<Vector2<f32>>,
+	);
+
+	fn keyboard_keys(&self, surface: &SurfaceId, keymap_id: u64, keys: Vec<i32>);
+
+	fn touch_down(&self, surface: &SurfaceId, id: u32, position: Vector2<f32>);
+	fn touch_move(&self, id: u32, position: Vector2<f32>);
+	fn touch_up(&self, id: u32);
+	fn reset_input(&self);
+}
+
+pub fn panel_item_from_node(node: &Node) -> Option<Arc<dyn PanelItemTrait>> {
+	let ItemType::Panel(panel_item) = &node.get_aspect::<Item>().ok()?.specialization else {
+		return None;
+	};
+	Some(panel_item.clone())
+}
+
+pub trait PanelItemTrait: Send + Sync + 'static {
+	fn backend(&self) -> &dyn Backend;
+	fn send_ui_item_created(&self, node: &Node, item: &Arc<Node>);
+	fn send_acceptor_item_created(&self, node: &Node, item: &Arc<Node>);
+}
+
+pub struct PanelItem<B: Backend> {
+	pub node: Weak<Node>,
+	pub backend: Box<B>,
+}
+impl<B: Backend> PanelItem<B> {
+	pub fn create(backend: Box<B>, pid: Option<i32>) -> (Arc<Node>, Arc<PanelItem<B>>) {
+		debug!(?pid, "Create panel item");
+
+		let startup_settings = pid
+			.and_then(|pid| get_env(pid).ok())
+			.and_then(|env| state(&env));
+
+		let node = Arc::new(Node::generate(&INTERNAL_CLIENT, true));
+		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false);
+		if let Some(startup_settings) = &startup_settings {
+			spatial.set_local_transform(startup_settings.root);
+		}
+
+		let panel_item = Arc::new(PanelItem {
+			node: Arc::downgrade(&node),
+			backend,
+		});
+
+		let generic_panel_item: Arc<dyn PanelItemTrait> = panel_item.clone();
+		Item::add_to(
+			&node,
+			&ITEM_TYPE_INFO_PANEL,
+			ItemType::Panel(generic_panel_item),
+		);
+		<Self as PanelItemAspect>::add_node_members(&node);
+
+		(node, panel_item)
+	}
+}
+
+// Remote signals
+#[allow(unused)]
+impl<B: Backend> PanelItem<B> {
+	pub fn toplevel_parent_changed(&self, parent: u64) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_parent_changed(&node, parent);
+	}
+	pub fn toplevel_title_changed(&self, title: &str) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_title_changed(&node, title);
+	}
+	pub fn toplevel_app_id_changed(&self, app_id: &str) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_app_id_changed(&node, app_id);
+	}
+	pub fn toplevel_fullscreen_active(&self, active: bool) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_fullscreen_active(&node, active);
+	}
+	pub fn toplevel_move_request(&self) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_move_request(&node);
+	}
+	pub fn toplevel_resize_request(&self, up: bool, down: bool, left: bool, right: bool) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_resize_request(&node, up, down, left, right);
+	}
+	pub fn toplevel_size_changed(&self, size: Vector2<u32>) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_size_changed(&node, size);
+	}
+
+	pub fn set_cursor(&self, geometry: Option<Geometry>) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		if let Some(geometry) = geometry {
+			panel_item_client::set_cursor(&node, &geometry);
+		} else {
+			panel_item_client::hide_cursor(&node);
+		}
+	}
+
+	pub fn create_child(&self, id: u64, info: &ChildInfo) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::create_child(&node, id, info);
+	}
+	pub fn reposition_child(&self, id: u64, geometry: &Geometry) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::reposition_child(&node, id, geometry);
+	}
+	pub fn destroy_child(&self, id: u64) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::destroy_child(&node, id);
+	}
+}
+
+// make these stupid vectors u32 in the protocol somehow!!!!!!!1
+
+#[allow(unused)]
+impl<B: Backend> PanelItemAspect for PanelItem<B> {
+	#[doc = "Apply the cursor as a material to a model."]
+	fn apply_cursor_material(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		model_part: Arc<Node>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		let model_part = model_part.get_aspect::<ModelPart>()?;
+
+		panel_item.backend().apply_cursor_material(&model_part);
+		Ok(())
+	}
+
+	#[doc = "Apply a surface's visuals as a material to a model."]
+	fn apply_surface_material(
+		node: Arc<Node>,
+		calling_client: Arc<Client>,
+		surface: SurfaceId,
+		model_part: Arc<Node>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		let model_part = model_part.get_aspect::<ModelPart>()?;
+
+		panel_item
+			.backend()
+			.apply_surface_material(surface, &model_part);
+		Ok(())
+	}
+
+	#[doc = "Try to close the toplevel.\n        \n        The panel item UI handler or panel item acceptor will drop the panel item if this succeeds."]
+	fn close_toplevel(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().close_toplevel();
+		Ok(())
+	}
+
+	#[doc = "Request a resize of the surface to whatever size the 2D app wants."]
+	fn auto_size_toplevel(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().auto_size_toplevel();
+		Ok(())
+	}
+
+	#[doc = "Request a resize of the surface (in pixels)."]
+	fn set_toplevel_size(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		size: mint::Vector2<u32>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().set_toplevel_size(size);
+		Ok(())
+	}
+
+	#[doc = "Tell the toplevel to appear focused visually if true, or unfocused if false."]
+	fn set_toplevel_focused_visuals(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		focused: bool,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().set_toplevel_focused_visuals(focused);
+		Ok(())
+	}
+
+	#[doc = "Send an event to set the pointer's position (in pixels, relative to top-left of surface). This will activate the pointer."]
+	fn pointer_motion(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		surface: SurfaceId,
+		position: mint::Vector2<f32>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().pointer_motion(&surface, position);
+		Ok(())
+	}
+
+	#[doc = "Send an event to set a pointer button's state if the pointer's active. The `button` is from the `input_event_codes` crate (e.g. BTN_LEFT for left click)."]
+	fn pointer_button(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		surface: SurfaceId,
+		button: u32,
+		pressed: bool,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item
+			.backend()
+			.pointer_button(&surface, button, pressed);
+		Ok(())
+	}
+
+	#[doc = "Send an event to scroll the pointer if it's active.\nScroll distance is a value in pixels corresponding to the `distance` the surface should be scrolled.\nScroll steps is a value in columns/rows corresponding to the wheel clicks of a mouse or such. This also supports fractions of a wheel click."]
+	fn pointer_scroll(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		surface: SurfaceId,
+		scroll_distance: mint::Vector2<f32>,
+		scroll_steps: mint::Vector2<f32>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item
+			.backend()
+			.pointer_scroll(&surface, Some(scroll_distance), Some(scroll_steps));
+		Ok(())
+	}
+
+	#[doc = "Send an event to stop scrolling the pointer."]
+	fn pointer_stop_scroll(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		surface: SurfaceId,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().pointer_scroll(&surface, None, None);
+		Ok(())
+	}
+
+	#[doc = "Send a series of key presses and releases (positive keycode for pressed, negative for released)."]
+	fn keyboard_keys(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		surface: SurfaceId,
+		keymap_id: u64,
+		keys: Vec<i32>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item
+			.backend()
+			.keyboard_keys(&surface, keymap_id, keys);
+		Ok(())
+	}
+
+	#[doc = "Put a touch down on this surface with the unique ID `uid` at `position` (in pixels) from top left corner of the surface."]
+	fn touch_down(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		surface: SurfaceId,
+		uid: u32,
+		position: mint::Vector2<f32>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().touch_down(&surface, uid, position);
+		Ok(())
+	}
+
+	#[doc = "Move an existing touch point."]
+	fn touch_move(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		uid: u32,
+		position: mint::Vector2<f32>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().touch_move(uid, position);
+		Ok(())
+	}
+
+	#[doc = "Release a touch from its surface."]
+	fn touch_up(node: Arc<Node>, _calling_client: Arc<Client>, uid: u32) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().touch_up(uid);
+		Ok(())
+	}
+
+	#[doc = "Reset all input, such as pressed keys and pointer clicks and touches. Useful for when it's newly captured into an item acceptor to make sure no input gets stuck."]
+	fn reset_input(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().reset_input();
+		Ok(())
+	}
+}
+
+impl PanelItemAcceptorAspect for ItemAcceptor {
+	fn capture_item(node: Arc<Node>, _calling_client: Arc<Client>, item: Arc<Node>) -> Result<()> {
+		super::acceptor_capture_item_flex(node, item)
+	}
+}
+
+impl<B: Backend> PanelItemTrait for PanelItem<B> {
+	fn backend(&self) -> &dyn Backend {
+		self.backend.as_ref()
+	}
+	fn send_ui_item_created(&self, node: &Node, item: &Arc<Node>) {
+		let Ok(init_data) = self.backend.start_data() else {
+			return;
+		};
+		let _ = panel_item_ui_client::create_item(node, item, init_data);
+	}
+	fn send_acceptor_item_created(&self, node: &Node, item: &Arc<Node>) {
+		let Ok(init_data) = self.backend.start_data() else {
+			return;
+		};
+		let _ = panel_item_acceptor_client::capture_item(node, item, init_data);
+	}
+}
+impl<B: Backend> Drop for PanelItem<B> {
+	fn drop(&mut self) {
+		// Dropped panel item, basically just a debug breakpoint place
+		info!("Dropped panel item");
+	}
+}
+
+create_interface!(ItemInterface);
+impl InterfaceAspect for ItemInterface {
+	#[doc = "Register this client to manage the items of a certain type and create default 3D UI for them."]
+	fn register_panel_item_ui(_node: Arc<Node>, calling_client: Arc<Client>) -> Result<()> {
+		register_item_ui_flex(calling_client, &ITEM_TYPE_INFO_PANEL)
+	}
+
+	#[doc = "Create an item acceptor to allow temporary ownership of a given type of item. Creates a node at `/item/<item_type>/acceptor/<name>`."]
+	fn create_panel_item_acceptor(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		field: Arc<Node>,
+	) -> Result<()> {
+		create_item_acceptor_flex(
+			calling_client,
+			id,
+			parent,
+			transform,
+			&ITEM_TYPE_INFO_PANEL,
+			field,
+		)
+	}
+}

src/nodes/mod.rs

@@ -1,247 +1,331 @@
 pub mod alias;
+pub mod audio;
 pub mod data;
 pub mod drawable;
 pub mod fields;
-pub mod hmd;
 pub mod input;
 pub mod items;
 pub mod root;
 pub mod spatial;
-pub mod startup;
 
-use anyhow::{anyhow, Result};
-use nanoid::nanoid;
-use once_cell::sync::OnceCell;
+use self::alias::Alias;
+use crate::core::client::Client;
+use crate::core::registry::Registry;
+use crate::core::scenegraph::MethodResponseSender;
+use color_eyre::eyre::{eyre, Result};
 use parking_lot::Mutex;
+use portable_atomic::{AtomicBool, Ordering};
+use rustc_hash::FxHashMap;
+use serde::{de::DeserializeOwned, Serialize};
+use spatial::Spatial;
+use stardust_xr::messenger::MessageSenderHandle;
 use stardust_xr::scenegraph::ScenegraphError;
-use std::sync::atomic::{AtomicBool, Ordering};
+use stardust_xr::schemas::flex::{deserialize, serialize};
+use std::any::{Any, TypeId};
+use std::fmt::Debug;
+use std::os::fd::OwnedFd;
 use std::sync::{Arc, Weak};
 use std::vec::Vec;
 
-use core::hash::BuildHasherDefault;
-use dashmap::DashMap;
-use rustc_hash::FxHasher;
-
-use crate::core::client::Client;
-use crate::core::registry::Registry;
-
-use self::alias::Alias;
-use self::data::{PulseReceiver, PulseSender};
-
-use self::drawable::model::Model;
-use self::drawable::text::Text;
-use self::fields::Field;
-use self::input::{InputHandler, InputMethod};
-use self::items::{Item, ItemAcceptor, ItemUI};
-use self::spatial::Spatial;
-use self::startup::StartupSettings;
-
-pub type Signal = fn(&Node, Arc<Client>, &[u8]) -> Result<()>;
-pub type Method = fn(&Node, Arc<Client>, &[u8]) -> Result<Vec<u8>>;
-
-pub struct Node {
-	pub(super) uid: String,
-	path: String,
-	// trailing_slash_pos: usize,
-	local_signals: DashMap<String, Signal, BuildHasherDefault<FxHasher>>,
-	local_methods: DashMap<String, Method, BuildHasherDefault<FxHasher>>,
-	destroyable: AtomicBool,
-
-	pub alias: OnceCell<Arc<Alias>>,
-	aliases: Registry<Alias>,
-
-	pub spatial: OnceCell<Arc<Spatial>>,
-	pub field: OnceCell<Arc<Field>>,
-
-	// Data
-	pub pulse_sender: OnceCell<Arc<PulseSender>>,
-	pub pulse_receiver: OnceCell<Arc<PulseReceiver>>,
-
-	// Drawable
-	pub model: OnceCell<Arc<Model>>,
-	pub text: OnceCell<Arc<Text>>,
-
-	// Input
-	pub input_method: OnceCell<Arc<InputMethod>>,
-	pub input_handler: OnceCell<Arc<InputHandler>>,
-
-	// Item
-	pub item: OnceCell<Arc<Item>>,
-	pub item_acceptor: OnceCell<Arc<ItemAcceptor>>,
-	pub item_ui: OnceCell<Arc<ItemUI>>,
-
-	// Startup
-	pub startup_settings: OnceCell<Mutex<StartupSettings>>,
-
-	pub(crate) client: Weak<Client>,
+#[derive(Default)]
+pub struct Message {
+	pub data: Vec<u8>,
+	pub fds: Vec<OwnedFd>,
+}
+impl From<Vec<u8>> for Message {
+	fn from(data: Vec<u8>) -> Self {
+		Message {
+			data,
+			fds: Vec::new(),
+		}
+	}
+}
+impl AsRef<[u8]> for Message {
+	fn as_ref(&self) -> &[u8] {
+		&self.data
+	}
 }
 
+pub type Signal = fn(Arc<Node>, Arc<Client>, Message) -> Result<()>;
+pub type Method = fn(Arc<Node>, Arc<Client>, Message, MethodResponseSender);
+
+stardust_xr_server_codegen::codegen_node_protocol!();
+
+pub struct OwnedNode(pub Arc<Node>);
+impl Drop for OwnedNode {
+	fn drop(&mut self) {
+		self.0.destroy();
+	}
+}
+
+pub struct Node {
+	enabled: AtomicBool,
+	id: u64,
+	client: Weak<Client>,
+	message_sender_handle: Option<MessageSenderHandle>,
+
+	local_signals: Mutex<FxHashMap<u64, Signal>>,
+	local_methods: Mutex<FxHashMap<u64, Method>>,
+	aliases: Registry<Alias>,
+	aspects: Aspects,
+	destroyable: bool,
+}
 impl Node {
 	pub fn get_client(&self) -> Option<Arc<Client>> {
 		self.client.upgrade()
 	}
-	// pub fn get_name(&self) -> &str {
-	// 	&self.path[self.trailing_slash_pos + 1..]
-	// }
-	pub fn get_path(&self) -> &str {
-		self.path.as_str()
-	}
-	pub fn is_destroyable(&self) -> bool {
-		self.destroyable.load(Ordering::Relaxed)
+	pub fn get_id(&self) -> u64 {
+		self.id
 	}
 
-	pub fn create(client: &Arc<Client>, parent: &str, name: &str, destroyable: bool) -> Self {
-		let mut path = parent.to_string();
-		path.push('/');
-		path.push_str(name);
+	pub fn generate(client: &Arc<Client>, destroyable: bool) -> Self {
+		Self::from_id(client, client.generate_id(), destroyable)
+	}
+	pub fn from_id(client: &Arc<Client>, id: u64, destroyable: bool) -> Self {
 		let node = Node {
-			uid: nanoid!(),
+			enabled: AtomicBool::new(true),
 			client: Arc::downgrade(client),
-			path,
-			// trailing_slash_pos: parent.len(),
+			message_sender_handle: client.message_sender_handle.clone(),
+			id,
 			local_signals: Default::default(),
 			local_methods: Default::default(),
-			destroyable: AtomicBool::from(destroyable),
-
-			alias: OnceCell::new(),
-			aliases: Registry::new(),
-
-			spatial: OnceCell::new(),
-			field: OnceCell::new(),
-			pulse_sender: OnceCell::new(),
-			pulse_receiver: OnceCell::new(),
-			model: OnceCell::new(),
-			text: OnceCell::new(),
-			input_method: OnceCell::new(),
-			input_handler: OnceCell::new(),
-			item: OnceCell::new(),
-			item_acceptor: OnceCell::new(),
-			item_ui: OnceCell::new(),
-			startup_settings: OnceCell::new(),
+			aliases: Default::default(),
+			aspects: Default::default(),
+			destroyable,
 		};
-		node.add_local_signal("destroy", Node::destroy_flex);
+		<Node as OwnedAspect>::add_node_members(&node);
 		node
 	}
-	pub fn add_to_scenegraph(self) -> Arc<Node> {
-		self.get_client().unwrap().scenegraph.add_node(self)
+	pub fn add_to_scenegraph(self) -> Result<Arc<Node>> {
+		Ok(self
+			.get_client()
+			.ok_or_else(|| eyre!("Internal: Unable to get client"))?
+			.scenegraph
+			.add_node(self))
+	}
+	pub fn add_to_scenegraph_owned(self) -> Result<OwnedNode> {
+		Ok(OwnedNode(
+			self.get_client()
+				.ok_or_else(|| eyre!("Internal: Unable to get client"))?
+				.scenegraph
+				.add_node(self),
+		))
+	}
+	pub fn enabled(&self) -> bool {
+		self.enabled.load(Ordering::Relaxed)
+			&& if let Ok(spatial) = self.get_aspect::<Spatial>() {
+				spatial
+					.global_transform()
+					.to_scale_rotation_translation()
+					.0
+					.length_squared() > 0.0
+			} else {
+				true
+			}
+	}
+	pub fn set_enabled(&self, enabled: bool) {
+		self.enabled.store(enabled, Ordering::Relaxed)
 	}
 	pub fn destroy(&self) {
-		let _ = self
-			.get_client()
-			.map(|c| c.scenegraph.remove_node(self.get_path()));
-	}
-
-	pub fn destroy_flex(node: &Node, _calling_client: Arc<Client>, _data: &[u8]) -> Result<()> {
-		if node.is_destroyable() {
-			node.destroy();
+		if let Some(client) = self.get_client() {
+			client.scenegraph.remove_node(self.get_id());
 		}
-		Ok(())
 	}
 
-	pub fn add_local_signal(&self, name: &str, signal: Signal) {
-		self.local_signals.insert(name.to_string(), signal);
+	// very much up for debate if we should allow this, as you can match objects using this
+	// pub fn get_client_pid_flex(
+	// 	node: Arc<Node>,
+	// 	_calling_client: Arc<Client>,
+	// 	_message: Message,
+	// ) -> Result<Message> {
+	// 	let client = node
+	// 		.client
+	// 		.upgrade()
+	// 		.ok_or_else(|| eyre!("Could not get client for node?"))?;
+	// 	let pid = client.pid.ok_or_else(|| eyre!("Client PID is unknown"))?;
+	// 	Ok(serialize(pid)?.into())
+	// }
+
+	pub fn add_local_signal(&self, id: u64, signal: Signal) {
+		self.local_signals.lock().insert(id, signal);
 	}
-	pub fn add_local_method(&self, name: &str, method: Method) {
-		self.local_methods.insert(name.to_string(), method);
+	pub fn add_local_method(&self, id: u64, method: Method) {
+		self.local_methods.lock().insert(id, method);
 	}
 
-	pub fn get_aspect<F, T>(
-		&self,
-		node_name: &'static str,
-		aspect_type: &'static str,
-		aspect_fn: F,
-	) -> Result<Arc<T>>
-	where
-		F: FnOnce(&Node) -> &OnceCell<Arc<T>>,
-	{
-		aspect_fn(self)
-			.get()
-			.ok_or_else(|| anyhow!("{} is not a {} node", node_name, aspect_type))
-			.cloned()
+	pub fn add_aspect<A: Aspect>(&self, aspect: A) -> Arc<A> {
+		self.aspects.add(aspect)
+	}
+	pub fn add_aspect_raw<A: Aspect>(&self, aspect: Arc<A>) {
+		self.aspects.add_raw(aspect)
+	}
+	pub fn get_aspect<A: Aspect>(&self) -> Result<Arc<A>> {
+		self.aspects.get()
 	}
 
 	pub fn send_local_signal(
-		&self,
+		self: Arc<Self>,
 		calling_client: Arc<Client>,
-		method: &str,
-		data: &[u8],
+		method: u64,
+		message: Message,
 	) -> Result<(), ScenegraphError> {
-		if let Some(alias) = self.alias.get() {
-			if !alias.info.local_signals.iter().any(|e| e == &method) {
+		if let Ok(alias) = self.get_aspect::<Alias>() {
+			if !alias.info.server_signals.iter().any(|e| *e == method) {
 				return Err(ScenegraphError::SignalNotFound);
 			}
 			alias
 				.original
 				.upgrade()
 				.ok_or(ScenegraphError::BrokenAlias)?
-				.send_local_signal(calling_client, method, data)
+				.send_local_signal(calling_client, method, message)
 		} else {
 			let signal = self
 				.local_signals
-				.get(method)
+				.lock()
+				.get(&method)
+				.cloned()
 				.ok_or(ScenegraphError::SignalNotFound)?;
-			signal(self, calling_client, data)
-				.map_err(|error| ScenegraphError::SignalError { error })
+			signal(self, calling_client, message).map_err(|error| ScenegraphError::SignalError {
+				error: error.to_string(),
+			})
 		}
 	}
 	pub fn execute_local_method(
-		&self,
+		self: Arc<Self>,
 		calling_client: Arc<Client>,
-		method: &str,
-		data: &[u8],
-	) -> Result<Vec<u8>, ScenegraphError> {
-		if let Some(alias) = self.alias.get() {
-			if !alias.info.local_methods.iter().any(|e| e == &method) {
-				return Err(ScenegraphError::MethodNotFound);
+		method: u64,
+		message: Message,
+		response: MethodResponseSender,
+	) {
+		if let Ok(alias) = self.get_aspect::<Alias>() {
+			if !alias.info.server_methods.iter().any(|e| *e == method) {
+				response.send(Err(ScenegraphError::MethodNotFound));
+				return;
 			}
-			alias
-				.original
-				.upgrade()
-				.ok_or(ScenegraphError::BrokenAlias)?
-				.execute_local_method(calling_client, method, data)
+			let Some(alias) = alias.original.upgrade() else {
+				response.send(Err(ScenegraphError::BrokenAlias));
+				return;
+			};
+			alias.execute_local_method(
+				calling_client,
+				method,
+				Message {
+					data: message.data.clone(),
+					fds: Vec::new(),
+				},
+				response,
+			)
 		} else {
-			let method = self
-				.local_methods
-				.get(method)
-				.ok_or(ScenegraphError::MethodNotFound)?;
-			method(self, calling_client, data)
-				.map_err(|error| ScenegraphError::MethodError { error })
+			let Some(method) = self.local_methods.lock().get(&method).cloned() else {
+				response.send(Err(ScenegraphError::MethodNotFound));
+				return;
+			};
+			method(self, calling_client, message, response);
 		}
 	}
-	pub fn send_remote_signal(&self, method: &str, data: &[u8]) -> Result<()> {
+	pub fn send_remote_signal(&self, method: u64, message: impl Into<Message>) -> Result<()> {
+		let message = message.into();
 		self.aliases
 			.get_valid_contents()
 			.iter()
-			.filter(|alias| alias.info.remote_signals.iter().any(|e| e == &method))
-			.for_each(|alias| {
-				let _ = alias
-					.node
-					.upgrade()
-					.unwrap()
-					.send_remote_signal(method, data);
+			.filter(|alias| alias.info.client_signals.iter().any(|e| e == &method))
+			.filter_map(|alias| alias.node.upgrade())
+			.for_each(|node| {
+				// Beware! file descriptors will not be sent to aliases!!!
+				let _ = node.send_remote_signal(
+					method,
+					Message {
+						data: message.data.clone(),
+						fds: Vec::new(),
+					},
+				);
 			});
-		let path = self.path.clone();
-		let method = method.to_string();
-		let data = data.to_vec();
-		if let Some(client) = self.get_client() {
-			if let Some(messenger) = client.messenger.as_ref() {
-				messenger.send_remote_signal(path.as_str(), method.as_str(), data.as_slice());
-			}
+		if let Some(handle) = self.message_sender_handle.as_ref() {
+			handle.signal(self.id, method, &message.data, message.fds)?;
 		}
 		Ok(())
 	}
-	pub async fn execute_remote_method(&self, method: &str, data: Vec<u8>) -> Result<Vec<u8>> {
-		if let Some(client) = self.get_client() {
-			match client.messenger.as_ref() {
-				None => Err(anyhow!("Messenger does not exist for this node's client")),
-				Some(messenger) => {
-					messenger
-						.execute_remote_method(self.path.as_str(), method, &data)
-						.await
-				}
-			}
-		} else {
-			Err(anyhow!("Client does not exist somehow?"))
-		}
+	pub async fn execute_remote_method_typed<S: Serialize, D: DeserializeOwned>(
+		&self,
+		method: u64,
+		input: S,
+		fds: Vec<OwnedFd>,
+	) -> Result<(D, Vec<OwnedFd>)> {
+		let message_sender_handle = self
+			.message_sender_handle
+			.as_ref()
+			.ok_or(eyre!("Messenger does not exist for this node"))?;
+
+		let serialized = serialize(input)?;
+		let result = message_sender_handle
+			.method(self.id, method, &serialized, fds)?
+			.await
+			.map_err(|e| eyre!(e))?;
+
+		let (message, fds) = result.into_components();
+		let deserialized: D = deserialize(&message)?;
+		Ok((deserialized, fds))
+	}
+}
+impl Debug for Node {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		f.debug_struct("Node")
+			.field("id", &self.id)
+			.field("local_signals", &self.local_signals.lock().keys())
+			.field("local_methods", &self.local_methods.lock().keys())
+			.field("destroyable", &self.destroyable)
+			.finish()
+	}
+}
+impl OwnedAspect for Node {
+	fn set_enabled(node: Arc<Node>, _calling_client: Arc<Client>, enabled: bool) -> Result<()> {
+		node.set_enabled(enabled);
+		Ok(())
+	}
+
+	fn destroy(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		if node.destroyable {
+			node.destroy();
+		}
+		Ok(())
+	}
+}
+impl Drop for Node {
+	fn drop(&mut self) {
+		// Debug breakpoint
+	}
+}
+
+pub trait Aspect: Any + Send + Sync + 'static {
+	const NAME: &'static str;
+}
+
+#[derive(Default)]
+struct Aspects(Mutex<FxHashMap<TypeId, Arc<dyn Any + Send + Sync + 'static>>>);
+
+impl Aspects {
+	fn add<A: Aspect>(&self, t: A) -> Arc<A> {
+		let aspect = Arc::new(t);
+		self.add_raw(aspect.clone());
+		aspect
+	}
+	fn add_raw<A: Aspect>(&self, aspect: Arc<A>) {
+		self.0.lock().insert(Self::type_key::<A>(), aspect);
+	}
+	fn get<A: Aspect>(&self) -> Result<Arc<A>> {
+		self.0
+			.lock()
+			.get(&Self::type_key::<A>())
+			.and_then(|a| Arc::downcast(a.clone()).ok())
+			.ok_or(eyre!("Couldn't get aspect {}", A::NAME.to_lowercase()))
+	}
+
+	fn type_key<A: 'static>() -> TypeId {
+		TypeId::of::<A>()
+	}
+}
+impl Drop for Aspects {
+	fn drop(&mut self) {
+		self.0.lock().clear()
 	}
 }

src/nodes/root.rs

@@ -1,79 +1,102 @@
 use super::spatial::Spatial;
-use super::startup::DESKTOP_STARTUP_IDS;
 use super::Node;
 use crate::core::client::Client;
+use crate::core::client_state::ClientStateParsed;
 use crate::core::registry::Registry;
-use anyhow::{anyhow, Result};
+use crate::nodes::spatial::SPATIAL_REF_ASPECT_ALIAS_INFO;
+use crate::session::connection_env;
+use color_eyre::eyre::{bail, Result};
 use glam::Mat4;
-use stardust_xr::schemas::flex::{deserialize, serialize};
-
-use std::sync::atomic::{AtomicBool, Ordering};
+use std::path::PathBuf;
 use std::sync::Arc;
+use std::time::Instant;
+use tracing::info;
 
 static ROOT_REGISTRY: Registry<Root> = Registry::new();
 
+stardust_xr_server_codegen::codegen_root_protocol!();
+
 pub struct Root {
 	node: Arc<Node>,
-	logic_step: AtomicBool,
+	connect_instant: Instant,
 }
 impl Root {
-	pub fn create(client: &Arc<Client>) -> Arc<Self> {
-		let node = Node::create(client, "", "", false);
-		node.add_local_signal("applyDesktopStartupID", Root::apply_desktop_startup_id);
-		node.add_local_signal("subscribeLogicStep", Root::subscribe_logic_step);
-		node.add_local_signal("setBasePrefixes", Root::set_base_prefixes);
-		let node = node.add_to_scenegraph();
-		let _ = Spatial::add_to(&node, None, Mat4::IDENTITY);
+	pub fn create(client: &Arc<Client>, transform: Mat4) -> Result<Arc<Self>> {
+		let node = Node::from_id(client, 0, false);
+		<Self as RootAspect>::add_node_members(&node);
+		let node = node.add_to_scenegraph()?;
+		let _ = Spatial::add_to(&node, None, transform, false);
 
-		ROOT_REGISTRY.add(Root {
+		Ok(ROOT_REGISTRY.add(Root {
 			node,
-			logic_step: AtomicBool::from(false),
-		})
+			connect_instant: Instant::now(),
+		}))
 	}
 
-	fn apply_desktop_startup_id(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		data: &[u8],
-	) -> Result<()> {
-		let startup_settings = DESKTOP_STARTUP_IDS
-			.lock()
-			.remove(flexbuffers::Reader::get_root(data)?.get_str()?)
-			.ok_or_else(|| anyhow!("Desktop startup ID not found in the list!"))?;
-		node.spatial
-			.get()
-			.unwrap()
-			.set_local_transform(startup_settings.transform);
-
-		Ok(())
-	}
-
-	fn subscribe_logic_step(_node: &Node, calling_client: Arc<Client>, _data: &[u8]) -> Result<()> {
-		calling_client
-			.root
-			.get()
-			.unwrap()
-			.logic_step
-			.store(true, Ordering::Relaxed);
-		Ok(())
-	}
-
-	pub fn logic_step(delta: f64) {
-		if let Ok(data) = serialize((delta, 0.0)) {
-			for root in ROOT_REGISTRY.get_valid_contents() {
-				if root.logic_step.load(Ordering::Relaxed) {
-					let _ = root.node.send_remote_signal("logicStep", &data);
-				}
-			}
+	pub fn send_frame_events(delta: f64) {
+		for root in ROOT_REGISTRY.get_valid_contents() {
+			let _ = root_client::frame(
+				&root.node,
+				&FrameInfo {
+					delta: delta as f32,
+					elapsed: root.connect_instant.elapsed().as_secs_f32(),
+				},
+			);
 		}
 	}
 
-	fn set_base_prefixes(_node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		*calling_client.base_resource_prefixes.lock() = deserialize(data)?;
+	pub fn set_transform(&self, transform: Mat4) {
+		let spatial = self.node.get_aspect::<Spatial>().unwrap();
+		spatial.set_spatial_parent(None).unwrap();
+		spatial.set_local_transform(transform);
+	}
+	pub async fn save_state(&self) -> Result<ClientState> {
+		Ok(root_client::save_state(&self.node).await?.0)
+	}
+}
+impl RootAspect for Root {
+	async fn get_state(_node: Arc<Node>, calling_client: Arc<Client>) -> Result<ClientState> {
+		let Some(state) = calling_client.state.get() else {
+			bail!("Couldn't get state");
+		};
+		Ok(state.clone())
+	}
+
+	#[doc = "Get a hashmap of all the environment variables to connect a given app to the stardust server"]
+	async fn get_connection_environment(
+		_node: Arc<Node>,
+		_calling_client: Arc<Client>,
+	) -> Result<stardust_xr::values::Map<String, String>> {
+		Ok(connection_env())
+	}
+
+	#[doc = "Generate a client state token and return it back.\n\n When launching a new client, set the environment variable `STARDUST_STARTUP_TOKEN` to the returned string.\n Make sure the environment variable shows in `/proc/{pid}/environ` as that's the only reliable way to pass the value to the server (suggestions welcome).\n"]
+	async fn generate_state_token(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		state: ClientState,
+	) -> Result<String> {
+		Ok(ClientStateParsed::from_deserialized(&calling_client, state).token())
+	}
+
+	#[doc = "Set initial list of folders to look for namespaced resources in"]
+	fn set_base_prefixes(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		prefixes: Vec<String>,
+	) -> Result<()> {
+		info!(?calling_client, ?prefixes, "Set base prefixes");
+		*calling_client.base_resource_prefixes.lock() =
+			prefixes.into_iter().map(PathBuf::from).collect();
+		Ok(())
+	}
+
+	#[doc = "Cleanly disconnect from the server"]
+	fn disconnect(_node: Arc<Node>, calling_client: Arc<Client>) -> color_eyre::eyre::Result<()> {
+		calling_client.disconnect(Ok(()));
 		Ok(())
 	}
 }
-
 impl Drop for Root {
 	fn drop(&mut self) {
 		ROOT_REGISTRY.remove(self);

src/nodes/spatial.rs

@@ -1,291 +0,0 @@
-use super::Node;
-use crate::core::client::Client;
-use anyhow::{anyhow, ensure, Result};
-use glam::{Mat4, Quat};
-use mint::Vector3;
-use parking_lot::Mutex;
-
-use serde::Deserialize;
-use stardust_xr::schemas::flex::{deserialize, serialize};
-use stardust_xr::values::Transform;
-use std::ptr;
-use std::sync::{Arc, Weak};
-
-pub struct Spatial {
-	pub(super) node: Weak<Node>,
-	parent: Mutex<Option<Arc<Spatial>>>,
-	pub(super) transform: Mutex<Mat4>,
-}
-
-impl Spatial {
-	pub fn new(node: Weak<Node>, parent: Option<Arc<Spatial>>, transform: Mat4) -> Arc<Self> {
-		Arc::new(Spatial {
-			node,
-			parent: Mutex::new(parent),
-			transform: Mutex::new(transform),
-		})
-	}
-	pub fn add_to(
-		node: &Arc<Node>,
-		parent: Option<Arc<Spatial>>,
-		transform: Mat4,
-	) -> Result<Arc<Spatial>> {
-		ensure!(
-			node.spatial.get().is_none(),
-			"Internal: Node already has a Spatial aspect!"
-		);
-		let spatial = Spatial {
-			node: Arc::downgrade(node),
-			parent: Mutex::new(parent),
-			transform: Mutex::new(transform),
-		};
-		node.add_local_method("getTransform", Spatial::get_transform_flex);
-		node.add_local_signal("setTransform", Spatial::set_transform_flex);
-		node.add_local_signal("setSpatialParent", Spatial::set_spatial_parent_flex);
-		node.add_local_signal(
-			"setSpatialParentInPlace",
-			Spatial::set_spatial_parent_in_place_flex,
-		);
-		let spatial_arc = Arc::new(spatial);
-		let _ = node.spatial.set(spatial_arc.clone());
-		Ok(spatial_arc)
-	}
-
-	pub fn space_to_space_matrix(from: Option<&Spatial>, to: Option<&Spatial>) -> Mat4 {
-		let space_to_world_matrix = from.map_or(Mat4::IDENTITY, |from| from.global_transform());
-		let world_to_space_matrix = to.map_or(Mat4::IDENTITY, |to| to.global_transform().inverse());
-		world_to_space_matrix * space_to_world_matrix
-	}
-
-	pub fn local_transform(&self) -> Mat4 {
-		*self.transform.lock()
-	}
-	pub fn global_transform(&self) -> Mat4 {
-		match self.parent.lock().clone() {
-			Some(value) => value.global_transform() * *self.transform.lock(),
-			None => *self.transform.lock(),
-		}
-	}
-	pub fn set_local_transform(&self, transform: Mat4) {
-		*self.transform.lock() = transform;
-	}
-	pub fn set_local_transform_components(
-		&self,
-		reference_space: Option<&Spatial>,
-		transform: Transform,
-	) {
-		let reference_to_parent_transform = reference_space
-			.map(|reference_space| {
-				Spatial::space_to_space_matrix(Some(reference_space), self.parent.lock().as_deref())
-			})
-			.unwrap_or(Mat4::IDENTITY);
-		let mut local_transform_in_reference_space =
-			reference_to_parent_transform.inverse() * self.local_transform();
-		let (mut reference_space_scl, mut reference_space_rot, mut reference_space_pos) =
-			local_transform_in_reference_space.to_scale_rotation_translation();
-
-		if let Some(pos) = transform.position {
-			reference_space_pos = pos.into()
-		}
-		if let Some(rot) = transform.rotation {
-			reference_space_rot = rot.into()
-		} else if reference_space_rot.is_nan() {
-			reference_space_rot = Quat::IDENTITY;
-		}
-		if let Some(scl) = transform.scale {
-			reference_space_scl = scl.into()
-		}
-
-		local_transform_in_reference_space = Mat4::from_scale_rotation_translation(
-			reference_space_scl,
-			reference_space_rot,
-			reference_space_pos,
-		);
-		self.set_local_transform(
-			reference_to_parent_transform * local_transform_in_reference_space,
-		);
-	}
-
-	pub fn is_ancestor_of(&self, spatial: Arc<Spatial>) -> bool {
-		let mut current_ancestor = spatial;
-		loop {
-			if Arc::as_ptr(&current_ancestor) == ptr::addr_of!(*self) {
-				return true;
-			}
-
-			let current_ancestor_parent = current_ancestor.parent.lock().clone();
-			if let Some(parent) = current_ancestor_parent {
-				current_ancestor = parent;
-			} else {
-				return false;
-			}
-		}
-	}
-
-	pub fn set_spatial_parent(&self, parent: Option<&Arc<Spatial>>) -> Result<()> {
-		let is_ancestor = parent
-			.map(|parent| self.is_ancestor_of(parent.clone()))
-			.unwrap_or(false);
-		if is_ancestor {
-			return Err(anyhow!("Setting spatial parent would cause a loop"));
-		}
-
-		*self.parent.lock() = parent.cloned();
-
-		Ok(())
-	}
-
-	pub fn set_spatial_parent_in_place(&self, parent: Option<&Arc<Spatial>>) -> Result<()> {
-		let is_ancestor = parent
-			.map(|parent| self.is_ancestor_of(parent.clone()))
-			.unwrap_or(false);
-		if is_ancestor {
-			return Err(anyhow!("Setting spatial parent would cause a loop"));
-		}
-
-		self.set_local_transform(Spatial::space_to_space_matrix(
-			Some(self),
-			parent.cloned().as_deref(),
-		));
-		*self.parent.lock() = parent.cloned();
-
-		Ok(())
-	}
-
-	pub fn get_transform_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		data: &[u8],
-	) -> Result<Vec<u8>> {
-		let this_spatial = node
-			.spatial
-			.get()
-			.ok_or_else(|| anyhow!("Node doesn't have a spatial?"))?;
-		let relative_spatial = find_reference_space(&calling_client, deserialize(data)?)?;
-
-		let (scale, rotation, position) = Spatial::space_to_space_matrix(
-			Some(this_spatial.as_ref()),
-			Some(relative_spatial.as_ref()),
-		)
-		.to_scale_rotation_translation();
-
-		serialize((
-			mint::Vector3::from(position),
-			mint::Quaternion::from(rotation),
-			mint::Vector3::from(scale),
-		))
-		.map_err(|e| e.into())
-	}
-	pub fn set_transform_flex(node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		#[derive(Deserialize)]
-		struct TransformArgs<'a> {
-			reference_space_path: Option<&'a str>,
-			transform: Transform,
-		}
-		let transform_args: TransformArgs = deserialize(data)?;
-		let reference_space_transform = transform_args
-			.reference_space_path
-			.map(|path| find_reference_space(&calling_client, path))
-			.transpose()?;
-
-		node.spatial.get().unwrap().set_local_transform_components(
-			reference_space_transform.as_deref(),
-			transform_args.transform,
-		);
-		Ok(())
-	}
-	pub fn set_spatial_parent_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		data: &[u8],
-	) -> Result<()> {
-		let parent = find_spatial_parent(&calling_client, deserialize(data)?)?;
-		node.spatial
-			.get()
-			.unwrap()
-			.set_spatial_parent(Some(&parent))
-	}
-	pub fn set_spatial_parent_in_place_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		data: &[u8],
-	) -> Result<()> {
-		let parent = find_spatial_parent(&calling_client, deserialize(data)?)?;
-		node.spatial
-			.get()
-			.unwrap()
-			.set_spatial_parent_in_place(Some(&parent))?;
-		Ok(())
-	}
-}
-
-pub fn parse_transform(
-	transform: Transform,
-	translation: bool,
-	rotation: bool,
-	scale: bool,
-) -> Result<Mat4> {
-	let translation = translation
-		.then_some(transform.position)
-		.flatten()
-		.unwrap_or_else(|| Vector3::from([0.0; 3]));
-	let rotation = rotation
-		.then_some(transform.rotation)
-		.flatten()
-		.unwrap_or_else(|| Quat::IDENTITY.into());
-	let scale = scale
-		.then_some(transform.scale)
-		.flatten()
-		.unwrap_or_else(|| Vector3::from([1.0; 3]));
-
-	Ok(Mat4::from_scale_rotation_translation(
-		scale.into(),
-		rotation.into(),
-		translation.into(),
-	))
-}
-
-pub fn find_spatial(
-	calling_client: &Arc<Client>,
-	node_name: &'static str,
-	node_path: &str,
-) -> anyhow::Result<Arc<Spatial>> {
-	Ok(calling_client
-		.get_node(node_name, node_path)?
-		.get_aspect(node_name, "spatial", |n| &n.spatial)?
-		.clone())
-}
-pub fn find_spatial_parent(
-	calling_client: &Arc<Client>,
-	node_path: &str,
-) -> anyhow::Result<Arc<Spatial>> {
-	find_spatial(calling_client, "Spatial parent", node_path)
-}
-pub fn find_reference_space(
-	calling_client: &Arc<Client>,
-	node_path: &str,
-) -> anyhow::Result<Arc<Spatial>> {
-	find_spatial(calling_client, "Reference space", node_path)
-}
-
-pub fn create_interface(client: &Arc<Client>) {
-	let node = Node::create(client, "", "spatial", false);
-	node.add_local_signal("createSpatial", create_spatial_flex);
-	node.add_to_scenegraph();
-}
-
-pub fn create_spatial_flex(_node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateSpatialInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-	}
-	let info: CreateSpatialInfo = deserialize(data)?;
-	let node = Node::create(&calling_client, "/spatial/spatial", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, true)?;
-	let node = node.add_to_scenegraph();
-	Spatial::add_to(&node, Some(parent), transform)?;
-	Ok(())
-}

src/nodes/spatial/mod.rs

@@ -0,0 +1,464 @@
+pub mod zone;
+
+use self::zone::Zone;
+use super::alias::Alias;
+use super::fields::{Field, FieldTrait};
+use super::Aspect;
+use crate::core::client::Client;
+use crate::core::registry::Registry;
+use crate::create_interface;
+use crate::nodes::{Node, OWNED_ASPECT_ALIAS_INFO};
+use color_eyre::eyre::{eyre, OptionExt, Result};
+use glam::{vec3a, Mat4, Quat, Vec3};
+use mint::Vector3;
+use once_cell::sync::OnceCell;
+use parking_lot::Mutex;
+use rustc_hash::FxHashMap;
+use std::fmt::Debug;
+use std::ptr;
+use std::sync::{Arc, Weak};
+use stereokit_rust::maths::Bounds;
+
+stardust_xr_server_codegen::codegen_spatial_protocol!();
+impl Transform {
+	pub fn to_mat4(&self, position: bool, rotation: bool, scale: bool) -> Mat4 {
+		let position = position
+			.then_some(self.translation)
+			.flatten()
+			.unwrap_or_else(|| Vector3::from([0.0; 3]));
+		let rotation = rotation
+			.then_some(self.rotation)
+			.flatten()
+			.unwrap_or_else(|| Quat::IDENTITY.into());
+		let scale = scale
+			.then_some(self.scale)
+			.flatten()
+			.unwrap_or_else(|| Vector3::from([1.0; 3]));
+
+		Mat4::from_scale_rotation_translation(scale.into(), rotation.into(), position.into())
+	}
+}
+
+lazy_static::lazy_static! {
+	pub static ref EXPORTED_SPATIALS: Mutex<FxHashMap<u64, Arc<Node>>> = Mutex::new(FxHashMap::default());
+}
+
+static ZONEABLE_REGISTRY: Registry<Spatial> = Registry::new();
+
+pub struct Spatial {
+	pub node: Weak<Node>,
+	parent: Mutex<Option<Arc<Spatial>>>,
+	old_parent: Mutex<Option<Arc<Spatial>>>,
+	transform: Mutex<Mat4>,
+	zone: Mutex<Weak<Zone>>,
+	children: Registry<Spatial>,
+	pub bounding_box_calc: OnceCell<fn(&Node) -> Bounds>,
+}
+
+impl Spatial {
+	pub fn new(node: Weak<Node>, parent: Option<Arc<Spatial>>, transform: Mat4) -> Arc<Self> {
+		Arc::new(Spatial {
+			node,
+			parent: Mutex::new(parent),
+			old_parent: Mutex::new(None),
+			transform: Mutex::new(transform),
+			zone: Mutex::new(Weak::new()),
+			children: Registry::new(),
+			bounding_box_calc: OnceCell::default(),
+		})
+	}
+	pub fn add_to(
+		node: &Arc<Node>,
+		parent: Option<Arc<Spatial>>,
+		transform: Mat4,
+		zoneable: bool,
+	) -> Arc<Spatial> {
+		let spatial = Spatial::new(Arc::downgrade(node), parent.clone(), transform);
+		<Spatial as SpatialAspect>::add_node_members(node);
+		if zoneable {
+			ZONEABLE_REGISTRY.add_raw(&spatial);
+		}
+		if let Some(parent) = parent {
+			parent.children.add_raw(&spatial);
+		}
+		<Spatial as SpatialRefAspect>::add_node_members(node);
+		<Spatial as SpatialAspect>::add_node_members(node);
+		node.add_aspect_raw(spatial.clone());
+		spatial
+	}
+
+	pub fn node(&self) -> Option<Arc<Node>> {
+		self.node.upgrade()
+	}
+
+	pub fn space_to_space_matrix(from: Option<&Spatial>, to: Option<&Spatial>) -> Mat4 {
+		let space_to_world_matrix = from.map_or(Mat4::IDENTITY, |from| from.global_transform());
+		let world_to_space_matrix = to.map_or(Mat4::IDENTITY, |to| to.global_transform().inverse());
+		world_to_space_matrix * space_to_world_matrix
+	}
+
+	// the output bounds are probably way bigger than they need to be
+	pub fn get_bounding_box(&self) -> Bounds {
+		let Some(node) = self.node() else {
+			return Bounds::default();
+		};
+		let mut bounds = self
+			.bounding_box_calc
+			.get()
+			.map(|b| (b)(&node))
+			.unwrap_or_default();
+		for child in self.children.get_valid_contents() {
+			bounds.grown_box(child.get_bounding_box(), child.local_transform());
+		}
+		bounds
+	}
+
+	pub fn local_transform(&self) -> Mat4 {
+		*self.transform.lock()
+	}
+	pub fn global_transform(&self) -> Mat4 {
+		let parent_transform = self
+			.get_parent()
+			.as_deref()
+			.map(Self::global_transform)
+			.unwrap_or_default();
+		parent_transform * self.local_transform()
+	}
+	pub fn set_local_transform(&self, transform: Mat4) {
+		*self.transform.lock() = transform;
+	}
+	pub fn set_local_transform_components(
+		&self,
+		reference_space: Option<&Spatial>,
+		transform: Transform,
+	) {
+		if reference_space == Some(self) {
+			self.set_local_transform(
+				parse_transform(transform, true, true, true) * self.local_transform(),
+			);
+			return;
+		}
+		let reference_to_parent_transform = reference_space
+			.map(|reference_space| {
+				Spatial::space_to_space_matrix(Some(reference_space), self.get_parent().as_deref())
+			})
+			.unwrap_or(Mat4::IDENTITY);
+		let mut local_transform_in_reference_space =
+			reference_to_parent_transform.inverse() * self.local_transform();
+		let (mut reference_space_scl, mut reference_space_rot, mut reference_space_pos) =
+			local_transform_in_reference_space.to_scale_rotation_translation();
+
+		if let Some(pos) = transform.translation {
+			reference_space_pos = pos.into()
+		}
+		if let Some(rot) = transform.rotation {
+			reference_space_rot = rot.into()
+		} else if reference_space_rot.is_nan() {
+			reference_space_rot = Quat::IDENTITY;
+		}
+		if let Some(scl) = transform.scale {
+			reference_space_scl = scl.into()
+		}
+
+		local_transform_in_reference_space = Mat4::from_scale_rotation_translation(
+			reference_space_scl,
+			reference_space_rot,
+			reference_space_pos,
+		);
+		self.set_local_transform(
+			reference_to_parent_transform * local_transform_in_reference_space,
+		);
+	}
+
+	pub fn is_ancestor_of(&self, spatial: Arc<Spatial>) -> bool {
+		let mut current_ancestor = spatial;
+		loop {
+			if Arc::as_ptr(&current_ancestor) == ptr::addr_of!(*self) {
+				return true;
+			}
+
+			if let Some(parent) = current_ancestor.get_parent() {
+				current_ancestor = parent;
+			} else {
+				return false;
+			}
+		}
+	}
+
+	fn get_parent(&self) -> Option<Arc<Spatial>> {
+		self.parent.lock().clone()
+	}
+	fn set_parent(self: &Arc<Self>, new_parent: Option<&Arc<Spatial>>) {
+		if let Some(parent) = self.get_parent() {
+			parent.children.remove(self);
+		}
+		if let Some(new_parent) = &new_parent {
+			new_parent.children.add_raw(self);
+		}
+
+		*self.parent.lock() = new_parent.cloned();
+	}
+
+	pub fn set_spatial_parent(self: &Arc<Self>, parent: Option<&Arc<Spatial>>) -> Result<()> {
+		let is_ancestor = parent
+			.as_ref()
+			.map(|parent| self.is_ancestor_of((*parent).clone()))
+			.unwrap_or(false);
+		if is_ancestor {
+			return Err(eyre!("Setting spatial parent would cause a loop"));
+		}
+		self.set_parent(parent);
+
+		Ok(())
+	}
+	pub fn set_spatial_parent_in_place(
+		self: &Arc<Self>,
+		parent: Option<&Arc<Spatial>>,
+	) -> Result<()> {
+		let is_ancestor = parent
+			.as_ref()
+			.map(|parent| self.is_ancestor_of((*parent).clone()))
+			.unwrap_or(false);
+		if is_ancestor {
+			return Err(eyre!("Setting spatial parent would cause a loop"));
+		}
+
+		self.set_local_transform(Spatial::space_to_space_matrix(
+			Some(self),
+			parent.map(AsRef::as_ref),
+		));
+		self.set_parent(parent);
+
+		Ok(())
+	}
+
+	pub(self) fn zone_distance(&self) -> f32 {
+		self.zone
+			.lock()
+			.upgrade()
+			.map(|zone| zone.field.clone())
+			.map(|field| field.distance(self, vec3a(0.0, 0.0, 0.0)))
+			.unwrap_or(f32::MAX)
+	}
+}
+impl Aspect for Spatial {
+	const NAME: &'static str = "Spatial";
+}
+impl SpatialRefAspect for Spatial {
+	async fn get_local_bounding_box(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+	) -> Result<BoundingBox> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let bounds = this_spatial.get_bounding_box();
+
+		Ok(BoundingBox {
+			center: Vec3::from(bounds.center).into(),
+			size: Vec3::from(bounds.dimensions).into(),
+		})
+	}
+
+	async fn get_relative_bounding_box(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		relative_to: Arc<Node>,
+	) -> Result<BoundingBox> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let relative_spatial = relative_to.get_aspect::<Spatial>()?;
+		let center = Spatial::space_to_space_matrix(Some(&this_spatial), Some(&relative_spatial))
+			.transform_point3([0.0; 3].into());
+		let mut bounds = Bounds {
+			center: center.into(),
+			dimensions: [0.0; 3].into(),
+		};
+		bounds.grown_box(
+			this_spatial.get_bounding_box(),
+			Spatial::space_to_space_matrix(Some(&this_spatial), Some(&relative_spatial)),
+		);
+
+		Ok(BoundingBox {
+			center: Vec3::from(bounds.center).into(),
+			size: Vec3::from(bounds.dimensions).into(),
+		})
+	}
+
+	async fn get_transform(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		relative_to: Arc<Node>,
+	) -> Result<Transform> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let relative_spatial = relative_to.get_aspect::<Spatial>()?;
+
+		let (scale, rotation, position) = Spatial::space_to_space_matrix(
+			Some(this_spatial.as_ref()),
+			Some(relative_spatial.as_ref()),
+		)
+		.to_scale_rotation_translation();
+
+		Ok(Transform {
+			translation: Some(position.into()),
+			rotation: Some(rotation.into()),
+			scale: Some(scale.into()),
+		})
+	}
+}
+impl SpatialAspect for Spatial {
+	fn set_local_transform(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		transform: Transform,
+	) -> Result<()> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		this_spatial.set_local_transform_components(None, transform);
+		Ok(())
+	}
+	fn set_relative_transform(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		relative_to: Arc<Node>,
+		transform: Transform,
+	) -> Result<()> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let relative_spatial = relative_to.get_aspect::<Spatial>()?;
+
+		this_spatial.set_local_transform_components(Some(&relative_spatial), transform);
+		Ok(())
+	}
+
+	fn set_spatial_parent(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		parent: Arc<Node>,
+	) -> Result<()> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let parent = parent.get_aspect::<Spatial>()?;
+
+		this_spatial.set_spatial_parent(Some(&parent))?;
+		Ok(())
+	}
+
+	fn set_spatial_parent_in_place(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		parent: Arc<Node>,
+	) -> Result<()> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let parent = parent.get_aspect::<Spatial>()?;
+
+		this_spatial.set_spatial_parent_in_place(Some(&parent))?;
+		Ok(())
+	}
+
+	fn set_zoneable(node: Arc<Node>, _calling_client: Arc<Client>, zoneable: bool) -> Result<()> {
+		let spatial = node.get_aspect::<Spatial>()?;
+		if zoneable {
+			ZONEABLE_REGISTRY.add_raw(&spatial);
+		} else {
+			ZONEABLE_REGISTRY.remove(&spatial);
+			zone::release(&spatial);
+		}
+		Ok(())
+	}
+
+	// legit gotta find a way to remove old ones, this just keeps the node alive
+	async fn export_spatial(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<u64> {
+		let id = rand::random();
+		EXPORTED_SPATIALS.lock().insert(id, node);
+		Ok(id)
+	}
+}
+impl PartialEq for Spatial {
+	fn eq(&self, other: &Self) -> bool {
+		self.node.as_ptr() == other.node.as_ptr()
+	}
+}
+impl Debug for Spatial {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		f.debug_struct("Spatial")
+			.field("parent", &self.parent)
+			.field("old_parent", &self.old_parent)
+			.field("transform", &self.transform)
+			.finish()
+	}
+}
+impl Drop for Spatial {
+	fn drop(&mut self) {
+		zone::release(self);
+		ZONEABLE_REGISTRY.remove(self);
+	}
+}
+
+pub fn parse_transform(transform: Transform, position: bool, rotation: bool, scale: bool) -> Mat4 {
+	let position = position
+		.then_some(transform.translation)
+		.flatten()
+		.unwrap_or_else(|| Vector3::from([0.0; 3]));
+	let rotation = rotation
+		.then_some(transform.rotation)
+		.flatten()
+		.unwrap_or_else(|| Quat::IDENTITY.into());
+	let scale = scale
+		.then_some(transform.scale)
+		.flatten()
+		.unwrap_or_else(|| Vector3::from([1.0; 3]));
+
+	Mat4::from_scale_rotation_translation(scale.into(), rotation.into(), position.into())
+}
+
+pub struct SpatialInterface;
+impl InterfaceAspect for SpatialInterface {
+	fn create_spatial(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		zoneable: bool,
+	) -> Result<()> {
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = parse_transform(transform, true, true, true);
+		let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, zoneable);
+		Ok(())
+	}
+	fn create_zone(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		field: Arc<Node>,
+	) -> Result<()> {
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = parse_transform(transform, true, true, false);
+		let field = field.get_aspect::<Field>()?;
+
+		let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+		let space = Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Zone::add_to(&node, space, field);
+		Ok(())
+	}
+
+	async fn import_spatial_ref(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		uid: u64,
+	) -> Result<Arc<Node>> {
+		EXPORTED_SPATIALS
+			.lock()
+			.get(&uid)
+			.map(|s| {
+				Alias::create(
+					s,
+					&calling_client,
+					SPATIAL_REF_ASPECT_ALIAS_INFO.clone(),
+					None,
+				)
+				.unwrap()
+			})
+			.ok_or_eyre("Couldn't find spatial with that ID")
+	}
+}
+
+create_interface!(SpatialInterface);

src/nodes/spatial/zone.rs

@@ -0,0 +1,162 @@
+use super::{
+	Spatial, ZoneAspect, SPATIAL_ASPECT_ALIAS_INFO, SPATIAL_REF_ASPECT_ALIAS_INFO,
+	ZONEABLE_REGISTRY,
+};
+use crate::{
+	core::{client::Client, registry::Registry},
+	nodes::{
+		alias::{get_original, Alias, AliasList},
+		fields::{Field, FieldTrait},
+		Aspect, Node,
+	},
+};
+use color_eyre::eyre::Result;
+use glam::vec3a;
+use std::sync::{Arc, Weak};
+
+pub fn capture(spatial: &Arc<Spatial>, zone: &Arc<Zone>) {
+	let old_distance = spatial.zone_distance();
+	let new_distance = zone.field.distance(spatial, vec3a(0.0, 0.0, 0.0));
+	if new_distance.abs() < old_distance.abs() {
+		release(spatial);
+		*spatial.old_parent.lock() = spatial.get_parent();
+		*spatial.zone.lock() = Arc::downgrade(zone);
+		let Some(zone_node) = zone.spatial.node.upgrade() else {
+			return;
+		};
+		let Some(spatial_node) = spatial.node.upgrade() else {
+			return;
+		};
+		let Ok(spatial_alias) = Alias::create(
+			&spatial_node,
+			&zone_node.get_client().unwrap(),
+			SPATIAL_ASPECT_ALIAS_INFO.clone(),
+			Some(&zone.captured),
+		) else {
+			return;
+		};
+		let _ = super::zone_client::capture(&zone_node, &spatial_alias);
+	}
+}
+pub fn release(spatial: &Spatial) {
+	let Some(spatial_node) = spatial.node.upgrade() else {
+		return;
+	};
+	let spatial = spatial_node.get_aspect::<Spatial>().unwrap();
+
+	let _ = spatial.set_spatial_parent_in_place(spatial.old_parent.lock().take().as_ref());
+	let mut spatial_zone = spatial.zone.lock();
+
+	if let Some(spatial_zone) = spatial_zone.upgrade() {
+		spatial_zone.captured.remove_aspect(spatial.as_ref());
+		let Some(node) = spatial_zone.spatial.node.upgrade() else {
+			return;
+		};
+		let _ = super::zone_client::release(&node, spatial_node.id);
+	}
+	*spatial_zone = Weak::new();
+}
+
+pub struct Zone {
+	spatial: Arc<Spatial>,
+	pub field: Arc<Field>,
+	intersecting_spatials: Registry<Spatial>,
+	intersecting: AliasList,
+	captured: AliasList,
+}
+impl Zone {
+	pub fn add_to(node: &Arc<Node>, spatial: Arc<Spatial>, field: Arc<Field>) -> Arc<Zone> {
+		let zone = Arc::new(Zone {
+			spatial,
+			field,
+			intersecting_spatials: Registry::default(),
+			intersecting: AliasList::default(),
+			captured: AliasList::default(),
+		});
+		<Zone as ZoneAspect>::add_node_members(node);
+		node.add_aspect_raw(zone.clone());
+		zone
+	}
+	pub fn update(&self) -> Result<()> {
+		let node = self.spatial.node().unwrap();
+
+		let current_zoneables = Registry::new();
+		for zoneable in ZONEABLE_REGISTRY.get_valid_contents() {
+			let distance = self.field.distance(&zoneable, [0.0; 3].into());
+			if distance > 0.0 {
+				continue;
+			}
+			if let Some(zone) = zoneable.zone.lock().upgrade() {
+				let zoneable_distance = zone.field.distance(&zoneable, [0.0; 3].into());
+				if zoneable_distance < distance {
+					continue;
+				}
+			}
+			current_zoneables.add_raw(&zoneable);
+		}
+
+		let (added, removed) =
+			Registry::get_changes(&self.intersecting_spatials, &current_zoneables);
+		for added in added {
+			let Some(added_node) = added.node() else {
+				continue;
+			};
+			let Ok(alias) = Alias::create(
+				&added_node,
+				&self.spatial.node().unwrap().get_client().unwrap(),
+				SPATIAL_REF_ASPECT_ALIAS_INFO.clone(),
+				Some(&self.intersecting),
+			) else {
+				continue;
+			};
+			let _ = super::zone_client::enter(&node, &alias);
+		}
+		for removed in removed {
+			let Some(removed_node) = removed.node() else {
+				continue;
+			};
+			release(&removed);
+			let _ = super::zone_client::leave(&node, removed_node.id);
+			self.intersecting.remove_aspect(removed.as_ref());
+		}
+		self.intersecting_spatials.set(&current_zoneables);
+
+		Ok(())
+	}
+}
+impl Aspect for Zone {
+	const NAME: &'static str = "Zone";
+}
+impl ZoneAspect for Zone {
+	fn update(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let zone = node.get_aspect::<Zone>()?;
+		let _ = zone.update();
+		Ok(())
+	}
+
+	fn capture(node: Arc<Node>, _calling_client: Arc<Client>, spatial: Arc<Node>) -> Result<()> {
+		let zone = node.get_aspect::<Zone>()?;
+		let spatial = spatial.get_aspect()?;
+		capture(&spatial, &zone);
+		Ok(())
+	}
+
+	fn release(_node: Arc<Node>, _calling_client: Arc<Client>, spatial: Arc<Node>) -> Result<()> {
+		let spatial = spatial.get_aspect()?;
+		release(&spatial);
+		Ok(())
+	}
+}
+impl Drop for Zone {
+	fn drop(&mut self) {
+		for captured in self
+			.captured
+			.get_aliases()
+			.into_iter()
+			.filter_map(|n| get_original(n, false))
+			.filter_map(|n| n.get_aspect::<Spatial>().ok())
+		{
+			release(&captured);
+		}
+	}
+}

src/nodes/startup.rs

@@ -1,76 +0,0 @@
-use crate::core::client::Client;
-
-use super::Node;
-use anyhow::{anyhow, Result};
-use glam::Mat4;
-use parking_lot::Mutex;
-use rustc_hash::FxHashMap;
-use std::sync::Arc;
-
-lazy_static::lazy_static! {
-	pub static ref DESKTOP_STARTUP_IDS: Mutex<FxHashMap<String, StartupSettings>> = Default::default();
-}
-
-#[derive(Debug, Default, Clone)]
-pub struct StartupSettings {
-	pub transform: Mat4,
-}
-impl StartupSettings {
-	pub fn add_to(node: &Arc<Node>) {
-		node.startup_settings
-			.set(Mutex::new(StartupSettings::default()))
-			.unwrap();
-	}
-
-	fn set_root_flex(node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		let startup_id = flexbuffers::Reader::get_root(data)?.get_str()?;
-		let spatial_node = calling_client
-			.scenegraph
-			.get_node(startup_id)
-			.ok_or_else(|| anyhow!("Root spatial node does not exist"))?;
-		let spatial = spatial_node
-			.spatial
-			.get()
-			.ok_or_else(|| anyhow!("Root spatial node is not a spatial"))?;
-		node.startup_settings.get().unwrap().lock().transform = spatial.global_transform();
-
-		Ok(())
-	}
-
-	fn generate_desktop_startup_id_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		_data: &[u8],
-	) -> Result<Vec<u8>> {
-		let id = nanoid::nanoid!();
-		let data = flexbuffers::singleton(id.as_str());
-		DESKTOP_STARTUP_IDS
-			.lock()
-			.insert(id, node.startup_settings.get().unwrap().lock().clone());
-		Ok(data)
-	}
-}
-
-pub fn create_interface(client: &Arc<Client>) {
-	let node = Node::create(client, "", "startup", false);
-	node.add_local_signal("createStartupSettings", create_startup_settings_flex);
-	node.add_to_scenegraph();
-}
-
-pub fn create_startup_settings_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	data: &[u8],
-) -> Result<()> {
-	let name = flexbuffers::Reader::get_root(data)?.get_str()?;
-	let node = Node::create(&calling_client, "/startup/settings", name, true).add_to_scenegraph();
-	StartupSettings::add_to(&node);
-
-	node.add_local_signal("setRoot", StartupSettings::set_root_flex);
-	node.add_local_method(
-		"generateDesktopStartupID",
-		StartupSettings::generate_desktop_startup_id_flex,
-	);
-
-	Ok(())
-}

src/objects/input/eye_pointer.rs

@@ -0,0 +1,106 @@
+use crate::{
+	core::client::INTERNAL_CLIENT,
+	nodes::{
+		fields::{FieldTrait, Ray},
+		input::{InputDataType, InputMethod, Pointer, INPUT_HANDLER_REGISTRY},
+		spatial::Spatial,
+		Node, OwnedNode,
+	},
+};
+use color_eyre::eyre::Result;
+use glam::{vec3, Mat4};
+use serde::{Deserialize, Serialize};
+use stardust_xr::values::Datamap;
+use std::sync::Arc;
+use stereokit_rust::system::Input;
+
+#[derive(Default, Deserialize, Serialize)]
+pub struct EyeDatamap {
+	eye: u32,
+}
+
+#[derive(Debug, Clone, Serialize)]
+pub struct KeyboardEvent {
+	pub keyboard: String,
+	pub keymap: Option<String>,
+	pub keys_up: Option<Vec<u32>>,
+	pub keys_down: Option<Vec<u32>>,
+}
+
+pub struct EyePointer {
+	node: OwnedNode,
+	spatial: Arc<Spatial>,
+	pointer: Arc<InputMethod>,
+}
+impl EyePointer {
+	pub fn new() -> Result<Self> {
+		let node = Node::generate(&INTERNAL_CLIENT, false).add_to_scenegraph_owned()?;
+		let spatial = Spatial::add_to(&node.0, None, Mat4::IDENTITY, false);
+		let pointer = InputMethod::add_to(
+			&node.0,
+			InputDataType::Pointer(Pointer::default()),
+			Datamap::from_typed(EyeDatamap::default())?,
+		)
+		.unwrap();
+
+		Ok(EyePointer {
+			node,
+			spatial,
+			pointer,
+		})
+	}
+	pub fn update(&self) {
+		let ray = Input::get_eyes();
+		self.spatial
+			.set_local_transform(Mat4::from_rotation_translation(
+				ray.orientation.into(),
+				ray.position.into(),
+			));
+		{
+			// Set pointer input datamap
+			*self.pointer.datamap.lock() = Datamap::from_typed(EyeDatamap { eye: 2 }).unwrap();
+		}
+
+		// send input to all the input handlers that are the closest to the ray as possible
+		let rx = INPUT_HANDLER_REGISTRY
+			.get_valid_contents()
+			.into_iter()
+			// filter out all the disabled handlers
+			.filter(|handler| {
+				let Some(node) = handler.spatial.node() else {
+					return false;
+				};
+				node.enabled()
+			})
+			// ray march to all the enabled handlers' fields
+			.map(|handler| {
+				let result = handler.field.ray_march(Ray {
+					origin: vec3(0.0, 0.0, 0.0),
+					direction: vec3(0.0, 0.0, -1.0),
+					space: self.spatial.clone(),
+				});
+				(vec![handler], result)
+			})
+			// make sure the field isn't at the pointer origin and that it's being hit
+			.filter(|(_, result)| result.deepest_point_distance > 0.01 && result.min_distance < 0.0)
+			// .inspect(|(_, result)| {
+			// 	dbg!(result);
+			// })
+			// now collect all handlers that are same distance if they're the closest
+			.reduce(|(mut handlers_a, result_a), (handlers_b, result_b)| {
+				if (result_a.deepest_point_distance - result_b.deepest_point_distance).abs() < 0.001
+				{
+					// distance is basically the same
+					handlers_a.extend(handlers_b);
+					(handlers_a, result_a)
+				} else if result_a.deepest_point_distance < result_b.deepest_point_distance {
+					(handlers_a, result_a)
+				} else {
+					(handlers_b, result_b)
+				}
+			})
+			.map(|(rx, _)| rx)
+			.unwrap_or_default();
+		self.pointer.set_handler_order(rx.iter());
+	}
+}

src/objects/input/mod.rs

@@ -1,3 +1,98 @@
+pub mod eye_pointer;
 pub mod mouse_pointer;
 pub mod sk_controller;
 pub mod sk_hand;
+
+use crate::nodes::{
+	fields::{Field, FieldTrait, Ray},
+	input::{InputDataTrait, InputDataType, InputHandler, InputMethod, INPUT_HANDLER_REGISTRY},
+	spatial::Spatial,
+};
+use glam::vec3;
+use std::sync::Arc;
+
+#[derive(Default)]
+pub struct CaptureManager {
+	pub capture: Option<Arc<InputHandler>>,
+}
+impl CaptureManager {
+	pub fn update_capture(&mut self, pointer: &InputMethod) {
+		if let Some(capture) = &self.capture {
+			if !pointer
+				.internal_capture_requests
+				.get_valid_contents()
+				.contains(capture)
+			{
+				self.capture.take();
+			}
+		}
+	}
+	pub fn set_new_capture(
+		&mut self,
+		pointer: &InputMethod,
+		distance_calculator: DistanceCalculator,
+	) {
+		if self.capture.is_none() {
+			self.capture = find_closest_capture(pointer, distance_calculator);
+		}
+	}
+	pub fn apply_capture(&self, method: &InputMethod) {
+		method.captures.clear();
+		if let Some(capture) = &self.capture {
+			method.set_handler_order([capture].into_iter());
+			method.captures.add_raw(capture);
+		}
+	}
+}
+
+type DistanceCalculator = fn(&Arc<Spatial>, &InputDataType, &Field) -> Option<f32>;
+
+pub fn find_closest_capture(
+	method: &InputMethod,
+	distance_calculator: DistanceCalculator,
+) -> Option<Arc<InputHandler>> {
+	method
+		.internal_capture_requests
+		.get_valid_contents()
+		.into_iter()
+		.filter_map(|h| {
+			distance_calculator(&method.spatial, &method.data.lock(), &h.field)
+				.map(|dist| (h.clone(), dist))
+		})
+		.min_by(|(_, dist_a), (_, dist_b)| dist_a.partial_cmp(dist_b).unwrap())
+		.map(|(handler, _)| handler)
+}
+
+pub fn get_sorted_handlers(
+	method: &InputMethod,
+	distance_calculator: DistanceCalculator,
+) -> Vec<Arc<InputHandler>> {
+	INPUT_HANDLER_REGISTRY
+		.get_valid_contents()
+		.into_iter()
+		.filter(|handler| handler.spatial.node().map_or(false, |node| node.enabled()))
+		.filter(|handler| {
+			handler
+				.field
+				.spatial
+				.node()
+				.map_or(false, |node| node.enabled())
+		})
+		.filter_map(|handler| {
+			distance_calculator(&method.spatial, &method.data.lock(), &handler.field)
+				.map(|distance| (vec![handler], distance))
+		})
+		.filter(|(_, distance)| *distance > 0.0)
+		.reduce(|(mut handlers_a, distance_a), (handlers_b, distance_b)| {
+			if (distance_a - distance_b).abs() < 0.001 {
+				handlers_a.extend(handlers_b);
+				(handlers_a, distance_a)
+			} else if distance_a < distance_b {
+				(handlers_a, distance_a)
+			} else {
+				(handlers_b, distance_b)
+			}
+		})
+		.map(|(handlers, _)| handlers)
+		.unwrap_or_default()
+}

src/objects/input/mouse_pointer.rs

@@ -1,59 +1,314 @@
-use crate::nodes::{
-	input::{pointer::Pointer, InputMethod, InputType},
-	spatial::Spatial,
-};
-use glam::{vec3, Mat4};
-use stardust_xr::{schemas::flat::Datamap, values::Transform};
-use std::sync::{Arc, Weak};
-use stereokit::{
-	input::{ButtonState, Key, Ray},
-	StereoKit,
+use crate::{
+	core::client::INTERNAL_CLIENT,
+	nodes::{
+		data::{
+			mask_matches, pulse_receiver_client, PulseSender, KEYMAPS, PULSE_RECEIVER_REGISTRY,
+		},
+		fields::{FieldTrait, Ray},
+		input::{InputDataType, InputHandler, InputMethod, Pointer, INPUT_HANDLER_REGISTRY},
+		spatial::Spatial,
+		Node, OwnedNode,
+	},
 };
+use color_eyre::eyre::Result;
+use glam::{vec3, Mat4, Vec3};
+use mint::Vector2;
+use serde::{Deserialize, Serialize};
+use slotmap::{DefaultKey, Key as SlotKey};
+use stardust_xr::values::Datamap;
+use std::sync::Arc;
+use stereokit_rust::system::{Input, Key};
+use xkbcommon_rs::{xkb_keymap::CompileFlags, Context, Keymap, KeymapFormat};
 
+use super::{get_sorted_handlers, CaptureManager, DistanceCalculator};
+
+#[derive(Debug, Deserialize, Serialize)]
+struct MouseEvent {
+	select: f32,
+	middle: f32,
+	context: f32,
+	grab: f32,
+	scroll_continuous: Vector2<f32>,
+	scroll_discrete: Vector2<f32>,
+	raw_input_events: Vec<u32>,
+}
+impl Default for MouseEvent {
+	fn default() -> Self {
+		MouseEvent {
+			select: 0.0,
+			middle: 0.0,
+			context: 0.0,
+			grab: 0.0,
+			scroll_continuous: [0.0; 2].into(),
+			scroll_discrete: [0.0; 2].into(),
+			raw_input_events: vec![],
+		}
+	}
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize, Default)]
+pub struct KeyboardEvent {
+	pub keyboard: (),
+	pub xkbv1: (),
+	pub keymap_id: u64,
+	pub keys: Vec<i32>,
+}
+
+#[allow(unused)]
 pub struct MousePointer {
+	node: OwnedNode,
+	keymap: DefaultKey,
+	spatial: Arc<Spatial>,
 	pointer: Arc<InputMethod>,
+	capture_manager: CaptureManager,
+	mouse_datamap: MouseEvent,
+	keyboard_datamap: KeyboardEvent,
+	keyboard_sender: Arc<PulseSender>,
 }
 impl MousePointer {
-	pub fn new() -> Self {
-		MousePointer {
-			pointer: InputMethod::new(
-				Spatial::new(Weak::new(), None, Mat4::IDENTITY),
-				InputType::Pointer(Pointer::default()),
-			),
-		}
+	pub fn new() -> Result<Self> {
+		let node = Node::generate(&INTERNAL_CLIENT, false).add_to_scenegraph_owned()?;
+		let spatial = Spatial::add_to(&node.0, None, Mat4::IDENTITY, false);
+		let pointer = InputMethod::add_to(
+			&node.0,
+			InputDataType::Pointer(Pointer::default()),
+			Datamap::from_typed(MouseEvent::default())?,
+		)?;
+
+		let context = Context::new(0).unwrap();
+		let keymap = KEYMAPS.lock().insert(
+			Keymap::new_from_names(context, None, CompileFlags::NO_FLAGS)
+				.unwrap()
+				.get_as_string(KeymapFormat::TextV1)
+				.unwrap(),
+		);
+
+		let keyboard_sender = PulseSender::add_to(
+			&node.0,
+			Datamap::from_typed(KeyboardEvent::default()).unwrap(),
+		)
+		.unwrap();
+
+		Ok(MousePointer {
+			node,
+			spatial,
+			pointer,
+			capture_manager: CaptureManager::default(),
+			mouse_datamap: Default::default(),
+			keyboard_datamap: KeyboardEvent {
+				keyboard: (),
+				xkbv1: (),
+				keymap_id: keymap.data().as_ffi(),
+				keys: vec![],
+			},
+			keymap,
+			keyboard_sender,
+		})
 	}
-	pub fn update(&self, sk: &StereoKit) {
-		if let Some(ray) = Ray::from_mouse(sk.input_mouse()) {
-			self.pointer.spatial.set_local_transform_components(
-				None,
-				Transform {
-					position: Some(ray.pos),
-					rotation: Some(
-						glam::Quat::from_rotation_arc(vec3(0.0, 0.0, 1.0), ray.dir.into()).into(),
-					),
-					scale: None,
-				},
-			);
+	pub fn update(&mut self) {
+		let mouse = Input::get_mouse();
+
+		let ray = mouse.get_ray();
+		self.spatial.set_local_transform(
+			Mat4::look_to_rh(
+				Vec3::from(ray.position),
+				Vec3::from(ray.direction),
+				vec3(0.0, 1.0, 0.0),
+			)
+			.inverse(),
+		);
+		{
+			// Set pointer input datamap
+			self.mouse_datamap = MouseEvent {
+				select: Input::key(Key::MouseLeft).is_active() as u32 as f32,
+				middle: Input::key(Key::MouseCenter).is_active() as u32 as f32,
+				context: Input::key(Key::MouseRight).is_active() as u32 as f32,
+				grab: (Input::key(Key::Backtick).is_active() && Input::key(Key::Shift).is_active()) as u32 as f32, // Was Mouse 5
+				scroll_continuous: [0.0, mouse.scroll_change / 120.0].into(),
+				scroll_discrete: [0.0, mouse.scroll_change / 120.0].into(),
+				raw_input_events: vec![],
+			};
+			*self.pointer.datamap.lock() = Datamap::from_typed(&self.mouse_datamap).unwrap();
+		}
+		self.target_pointer_input();
+		self.send_keyboard_input();
+	}
+	fn target_pointer_input(&mut self) {
+		let distance_calculator: DistanceCalculator = |space, data, field| {
+			let result = field.ray_march(Ray {
+				origin: vec3(0.0, 0.0, 0.0),
+				direction: vec3(0.0, 0.0, -1.0),
+				space: space.clone(),
+			});
+			let valid =
+				result.deepest_point_distance > 0.0 && result.min_distance.is_sign_negative();
+			valid.then_some(result.deepest_point_distance)
+		};
+
+		self.capture_manager.update_capture(&self.pointer);
+		self.capture_manager
+			.set_new_capture(&self.pointer, distance_calculator);
+		self.capture_manager.apply_capture(&self.pointer);
+
+		if self.capture_manager.capture.is_some() {
+			return;
+		}
+
+		let sorted_handlers = get_sorted_handlers(&self.pointer, distance_calculator);
+		self.pointer.set_handler_order(sorted_handlers.iter());
+	}
+
+	fn send_keyboard_input(&mut self) {
+		let rx = PULSE_RECEIVER_REGISTRY
+			.get_valid_contents()
+			.into_iter()
+			.filter(|rx| mask_matches(&rx.mask, &self.keyboard_sender.mask))
+			.map(|rx| {
+				let result = rx.field.ray_march(Ray {
+					origin: vec3(0.0, 0.0, 0.0),
+					direction: vec3(0.0, 0.0, -1.0),
+					space: self.spatial.clone(),
+				});
+				(rx, result)
+			})
+			.filter(|(_rx, result)| {
+				result.deepest_point_distance > 0.0 && result.min_distance < 0.05
+			})
+			.reduce(|(rx_a, result_a), (rx_b, result_b)| {
+				if result_a.deepest_point_distance < result_b.deepest_point_distance {
+					(rx_a, result_a)
+				} else {
+					(rx_b, result_b)
+				}
+			})
+			.map(|(rx, _)| rx);
+
+		if let Some(rx) = rx {
+			let keys = (8_u32..254)
+				.map(|i| unsafe { std::mem::transmute(i) })
+				.filter_map(|k| Some((map_key(k)?, Input::key(k))))
+				.filter_map(|(i, k)| {
+					if k.is_just_active() {
+						Some(i as i32)
+					} else if k.is_just_inactive() {
+						Some(-(i as i32))
+					} else {
+						None
+					}
+				})
+				.collect();
+
+			self.keyboard_datamap.keys = keys;
+			if !self.keyboard_datamap.keys.is_empty() {
+				pulse_receiver_client::data(
+					&rx.node.upgrade().unwrap(),
+					&self.node.0,
+					&Datamap::from_typed(&self.keyboard_datamap).unwrap(),
+				)
+				.unwrap();
+			}
 		}
-		let mut fbb = flexbuffers::Builder::default();
-		let mut map = fbb.start_map();
-		map.push(
-			"select",
-			if sk.input_key(Key::MouseLeft).contains(ButtonState::Active) {
-				1.0f32
-			} else {
-				0.0f32
-			},
-		);
-		map.push(
-			"grab",
-			if sk.input_key(Key::MouseRight).contains(ButtonState::Active) {
-				1.0f32
-			} else {
-				0.0f32
-			},
-		);
-		map.end_map();
-		*self.pointer.datamap.lock() = Datamap::new(fbb.take_buffer()).ok();
+	}
+}
+
+fn map_key(key: Key) -> Option<u32> {
+	match key {
+		Key::Backspace => Some(input_event_codes::KEY_BACKSPACE!()),
+		Key::Tab => Some(input_event_codes::KEY_TAB!()),
+		Key::Return => Some(input_event_codes::KEY_ENTER!()),
+		Key::Shift => Some(input_event_codes::KEY_LEFTSHIFT!()),
+		Key::Ctrl => Some(input_event_codes::KEY_LEFTCTRL!()),
+		Key::Alt => Some(input_event_codes::KEY_LEFTALT!()),
+		Key::CapsLock => Some(input_event_codes::KEY_CAPSLOCK!()),
+		Key::Esc => Some(input_event_codes::KEY_ESC!()),
+		Key::Space => Some(input_event_codes::KEY_SPACE!()),
+		Key::End => Some(input_event_codes::KEY_END!()),
+		Key::Home => Some(input_event_codes::KEY_HOME!()),
+		Key::Left => Some(input_event_codes::KEY_LEFT!()),
+		Key::Right => Some(input_event_codes::KEY_RIGHT!()),
+		Key::Up => Some(input_event_codes::KEY_UP!()),
+		Key::Down => Some(input_event_codes::KEY_DOWN!()),
+		Key::PageUp => Some(input_event_codes::KEY_PAGEUP!()),
+		Key::PageDown => Some(input_event_codes::KEY_PAGEDOWN!()),
+		Key::PrintScreen => Some(input_event_codes::KEY_PRINT!()),
+		Key::KeyInsert => Some(input_event_codes::KEY_INSERT!()),
+		Key::Del => Some(input_event_codes::KEY_DELETE!()),
+		Key::Key0 => Some(input_event_codes::KEY_0!()),
+		Key::Key1 => Some(input_event_codes::KEY_1!()),
+		Key::Key2 => Some(input_event_codes::KEY_2!()),
+		Key::Key3 => Some(input_event_codes::KEY_3!()),
+		Key::Key4 => Some(input_event_codes::KEY_4!()),
+		Key::Key5 => Some(input_event_codes::KEY_5!()),
+		Key::Key6 => Some(input_event_codes::KEY_6!()),
+		Key::Key7 => Some(input_event_codes::KEY_7!()),
+		Key::Key8 => Some(input_event_codes::KEY_8!()),
+		Key::Key9 => Some(input_event_codes::KEY_9!()),
+		Key::A => Some(input_event_codes::KEY_A!()),
+		Key::B => Some(input_event_codes::KEY_B!()),
+		Key::C => Some(input_event_codes::KEY_C!()),
+		Key::D => Some(input_event_codes::KEY_D!()),
+		Key::E => Some(input_event_codes::KEY_E!()),
+		Key::F => Some(input_event_codes::KEY_F!()),
+		Key::G => Some(input_event_codes::KEY_G!()),
+		Key::H => Some(input_event_codes::KEY_H!()),
+		Key::I => Some(input_event_codes::KEY_I!()),
+		Key::J => Some(input_event_codes::KEY_J!()),
+		Key::K => Some(input_event_codes::KEY_K!()),
+		Key::L => Some(input_event_codes::KEY_L!()),
+		Key::M => Some(input_event_codes::KEY_M!()),
+		Key::N => Some(input_event_codes::KEY_N!()),
+		Key::O => Some(input_event_codes::KEY_O!()),
+		Key::P => Some(input_event_codes::KEY_P!()),
+		Key::Q => Some(input_event_codes::KEY_Q!()),
+		Key::R => Some(input_event_codes::KEY_R!()),
+		Key::S => Some(input_event_codes::KEY_S!()),
+		Key::T => Some(input_event_codes::KEY_T!()),
+		Key::U => Some(input_event_codes::KEY_U!()),
+		Key::V => Some(input_event_codes::KEY_V!()),
+		Key::W => Some(input_event_codes::KEY_W!()),
+		Key::X => Some(input_event_codes::KEY_X!()),
+		Key::Y => Some(input_event_codes::KEY_Y!()),
+		Key::Z => Some(input_event_codes::KEY_Z!()),
+		Key::Numpad0 => Some(input_event_codes::KEY_NUMERIC_0!()),
+		Key::Numpad1 => Some(input_event_codes::KEY_NUMERIC_1!()),
+		Key::Numpad2 => Some(input_event_codes::KEY_NUMERIC_2!()),
+		Key::Numpad3 => Some(input_event_codes::KEY_NUMERIC_3!()),
+		Key::Numpad4 => Some(input_event_codes::KEY_NUMERIC_4!()),
+		Key::Numpad5 => Some(input_event_codes::KEY_NUMERIC_5!()),
+		Key::Numpad6 => Some(input_event_codes::KEY_NUMERIC_6!()),
+		Key::Numpad7 => Some(input_event_codes::KEY_NUMERIC_7!()),
+		Key::Numpad8 => Some(input_event_codes::KEY_NUMERIC_8!()),
+		Key::Numpad9 => Some(input_event_codes::KEY_NUMERIC_9!()),
+		Key::F1 => Some(input_event_codes::KEY_F1!()),
+		Key::F2 => Some(input_event_codes::KEY_F2!()),
+		Key::F3 => Some(input_event_codes::KEY_F3!()),
+		Key::F4 => Some(input_event_codes::KEY_F4!()),
+		Key::F5 => Some(input_event_codes::KEY_F5!()),
+		// Key::F6 => Some(input_event_codes::KEY_F6!()),
+		// Key::F7 => Some(input_event_codes::KEY_F7!()),
+		// Key::F8 => Some(input_event_codes::KEY_F8!()),
+		Key::F9 => Some(input_event_codes::KEY_F9!()),
+		Key::F10 => Some(input_event_codes::KEY_F10!()),
+		Key::F11 => Some(input_event_codes::KEY_F11!()),
+		Key::F12 => Some(input_event_codes::KEY_F12!()),
+		Key::Comma => Some(input_event_codes::KEY_COMMA!()),
+		Key::Period => Some(input_event_codes::KEY_DOT!()),
+		Key::SlashFwd => Some(input_event_codes::KEY_SLASH!()),
+		Key::SlashBack => Some(input_event_codes::KEY_BACKSLASH!()),
+		Key::Semicolon => Some(input_event_codes::KEY_SEMICOLON!()),
+		Key::Apostrophe => Some(input_event_codes::KEY_APOSTROPHE!()),
+		Key::BracketOpen => Some(input_event_codes::KEY_LEFTBRACE!()),
+		Key::BracketClose => Some(input_event_codes::KEY_RIGHTBRACE!()),
+		Key::Minus => Some(input_event_codes::KEY_MINUS!()),
+		Key::Equals => Some(input_event_codes::KEY_EQUAL!()),
+		Key::Backtick => Some(input_event_codes::KEY_GRAVE!()),
+		Key::LCmd => Some(input_event_codes::KEY_LEFTMETA!()),
+		Key::RCmd => Some(input_event_codes::KEY_RIGHTMETA!()),
+		Key::Multiply => Some(input_event_codes::KEY_NUMERIC_STAR!()),
+		Key::Add => Some(input_event_codes::KEY_KPPLUS!()),
+		Key::Subtract => Some(input_event_codes::KEY_MINUS!()),
+		Key::Decimal => Some(input_event_codes::KEY_DOT!()),
+		Key::Divide => Some(input_event_codes::KEY_SLASH!()),
+		_ => None,
 	}
 }

src/objects/input/sk_controller.rs

@@ -1,47 +1,128 @@
-use crate::nodes::{
-	input::{tip::Tip, InputMethod, InputType},
-	spatial::Spatial,
+use super::{get_sorted_handlers, CaptureManager};
+use crate::{
+	core::client::INTERNAL_CLIENT,
+	nodes::{
+		fields::{Field, FieldTrait},
+		input::{InputDataType, InputHandler, InputMethod, Tip, INPUT_HANDLER_REGISTRY},
+		spatial::Spatial,
+		Node, OwnedNode,
+	},
+	objects::{ObjectHandle, SpatialRef},
 };
-use glam::Mat4;
-use stardust_xr::{schemas::flat::Datamap, values::Transform};
-use std::sync::{Arc, Weak};
-use stereokit::{
-	input::{ButtonState, Handed},
-	StereoKit,
+use color_eyre::eyre::Result;
+use glam::{Mat4, Vec2, Vec3};
+use serde::{Deserialize, Serialize};
+use stardust_xr::values::Datamap;
+use std::sync::Arc;
+use stereokit_rust::{
+	material::Material,
+	model::Model,
+	sk::MainThreadToken,
+	system::{Handed, Input},
+	util::Color128,
 };
+use zbus::Connection;
+
+#[derive(Default, Debug, Deserialize, Serialize)]
+struct ControllerDatamap {
+	select: f32,
+	middle: f32,
+	context: f32,
+	grab: f32,
+	scroll: Vec2,
+}
 
 pub struct SkController {
-	tip: Arc<InputMethod>,
+	object_handle: ObjectHandle<SpatialRef>,
+	input: Arc<InputMethod>,
 	handed: Handed,
+	model: Model,
+	material: Material,
+	capture_manager: CaptureManager,
+	datamap: ControllerDatamap,
 }
 impl SkController {
-	pub fn new(handed: Handed) -> Self {
-		SkController {
-			tip: InputMethod::new(
-				Spatial::new(Weak::new(), None, Mat4::IDENTITY),
-				InputType::Tip(Tip::default()),
-			),
+	pub fn new(connection: &Connection, handed: Handed) -> Result<Self> {
+		let (spatial, object_handle) = SpatialRef::create(
+			connection,
+			&("/org/stardustxr/Controller/".to_string()
+				+ match handed {
+					Handed::Left => "left",
+					_ => "right",
+				}),
+		);
+		let model = Model::copy(Model::from_memory(
+			"cursor.glb",
+			include_bytes!("cursor.glb"),
+			None,
+		)?);
+		let model_nodes = model.get_nodes();
+		let mut model_node = model_nodes.visuals().next().unwrap();
+		let material = Material::copy(&model_node.get_material().unwrap());
+		model_node.material(&material);
+		let tip = InputDataType::Tip(Tip::default());
+		let input = InputMethod::add_to(
+			&spatial.node().unwrap(),
+			tip,
+			Datamap::from_typed(ControllerDatamap::default())?,
+		)?;
+		Ok(SkController {
+			object_handle,
+			input,
 			handed,
-		}
+			model,
+			material,
+			capture_manager: CaptureManager::default(),
+			datamap: Default::default(),
+		})
 	}
-	pub fn update(&mut self, sk: &StereoKit) {
-		let controller = sk.input_controller(self.handed);
-		*self.tip.enabled.lock() = controller.tracked.contains(ButtonState::Active);
-		if *self.tip.enabled.lock() {
-			self.tip.spatial.set_local_transform_components(
-				None,
-				Transform {
-					position: Some(controller.pose.position),
-					rotation: Some(controller.pose.orientation),
-					scale: None,
-				},
+	pub fn update(&mut self, token: &MainThreadToken) {
+		let controller = Input::controller(self.handed);
+		let input_node = self.input.spatial.node().unwrap();
+		input_node.set_enabled(controller.tracked.is_active());
+		if input_node.enabled() {
+			let world_transform = Mat4::from_rotation_translation(
+				controller.aim.orientation.into(),
+				controller.aim.position.into(),
 			);
+			self.material
+				.color_tint(if self.capture_manager.capture.is_none() {
+					Color128::new_rgb(1.0, 1.0, 1.0)
+				} else {
+					Color128::new_rgb(0.0, 1.0, 0.75)
+				});
+			self.model.draw(
+				token,
+				world_transform * Mat4::from_scale(Vec3::ONE * 0.02),
+				None,
+				None,
+			);
+			self.input.spatial.set_local_transform(world_transform);
 		}
-		let mut fbb = flexbuffers::Builder::default();
-		let mut map = fbb.start_map();
-		map.push("select", controller.trigger);
-		map.push("grab", controller.grip);
-		map.end_map();
-		*self.tip.datamap.lock() = Datamap::new(fbb.take_buffer()).ok();
+
+		self.datamap = ControllerDatamap {
+			select: controller.trigger,
+			middle: controller.stick_click.is_active() as u32 as f32,
+			context: controller.is_x2_pressed() as u32 as f32,
+			grab: controller.grip,
+			scroll: controller.stick.into(),
+		};
+		*self.input.datamap.lock() = Datamap::from_typed(&self.datamap).unwrap();
+
+		let distance_calculator = |space: &Arc<Spatial>, _data: &InputDataType, field: &Field| {
+			Some(field.distance(space, [0.0; 3].into()).abs())
+		};
+
+		self.capture_manager.update_capture(&self.input);
+		self.capture_manager
+			.set_new_capture(&self.input, distance_calculator);
+		self.capture_manager.apply_capture(&self.input);
+
+		if self.capture_manager.capture.is_some() {
+			return;
+		}
+
+		let sorted_handlers = get_sorted_handlers(&self.input, distance_calculator);
+		self.input.set_handler_order(sorted_handlers.iter());
 	}
 }

src/objects/input/sk_hand.rs

@@ -1,60 +1,102 @@
+use crate::core::client::INTERNAL_CLIENT;
+use crate::nodes::fields::{Field, FieldTrait};
+use crate::nodes::input::{InputDataType, InputHandler, INPUT_HANDLER_REGISTRY};
+use crate::nodes::OwnedNode;
 use crate::nodes::{
-	input::{hand::Hand, InputMethod, InputType},
+	input::{Hand, InputMethod, Joint},
 	spatial::Spatial,
+	Node,
 };
-use glam::Mat4;
-use stardust_xr::schemas::flat::{Datamap, Hand as FlatHand, Joint};
-use std::sync::{Arc, Weak};
-use stereokit::{
-	input::{ButtonState, Handed, Joint as SkJoint},
-	StereoKit,
-};
+use crate::objects::{ObjectHandle, SpatialRef};
+use color_eyre::eyre::Result;
+use glam::{Mat4, Quat, Vec3};
+use serde::{Deserialize, Serialize};
+use stardust_xr::values::Datamap;
+use std::f32::INFINITY;
+use std::sync::Arc;
+use stereokit_rust::sk::{DisplayMode, MainThreadToken, Sk};
+use stereokit_rust::system::{HandJoint, HandSource, Handed, Input, LinePoint, Lines};
+use stereokit_rust::util::Color128;
+use zbus::Connection;
 
-fn convert_joint(joint: SkJoint) -> Joint {
+use super::{get_sorted_handlers, CaptureManager};
+
+fn convert_joint(joint: HandJoint) -> Joint {
 	Joint {
-		position: joint.position,
-		rotation: joint.orientation,
+		position: Vec3::from(joint.position).into(),
+		rotation: Quat::from(joint.orientation).into(),
 		radius: joint.radius,
+		distance: 0.0,
 	}
 }
 
+#[derive(Default, Deserialize, Serialize)]
+struct HandDatamap {
+	pinch_strength: f32,
+	grab_strength: f32,
+}
+
 pub struct SkHand {
-	hand: Arc<InputMethod>,
+	_node: OwnedNode,
+	palm_spatial: Arc<Spatial>,
+	palm_object: ObjectHandle<SpatialRef>,
 	handed: Handed,
+	input: Arc<InputMethod>,
+	capture_manager: CaptureManager,
+	datamap: HandDatamap,
 }
 impl SkHand {
-	pub fn new(handed: Handed) -> Self {
-		SkHand {
-			hand: InputMethod::new(
-				Spatial::new(Weak::new(), None, Mat4::IDENTITY),
-				InputType::Hand(Box::new(Hand {
-					base: FlatHand {
-						right: handed == Handed::Right,
-						..Default::default()
-					},
-				})),
-			),
-			handed,
-		}
-	}
-	pub fn update(&mut self, sk: &StereoKit) {
-		let sk_hand = sk.input_hand(self.handed);
-		if let InputType::Hand(hand) = &mut *self.hand.specialization.lock() {
-			let controller = sk.input_controller(self.handed);
-			*self.hand.enabled.lock() = controller.tracked.contains(ButtonState::Inactive)
-				&& sk_hand.tracked_state.contains(ButtonState::Active);
-			if *self.hand.enabled.lock() {
-				hand.base.thumb.tip = convert_joint(sk_hand.fingers[0][4]);
-				hand.base.thumb.distal = convert_joint(sk_hand.fingers[0][3]);
-				hand.base.thumb.proximal = convert_joint(sk_hand.fingers[0][2]);
-				hand.base.thumb.metacarpal = convert_joint(sk_hand.fingers[0][1]);
+	pub fn new(connection: &Connection, handed: Handed) -> Result<Self> {
+		let (palm_spatial, palm_object) = SpatialRef::create(
+			connection,
+			&("/org/stardustxr/Hand/".to_string()
+				+ match handed {
+					Handed::Left => "left",
+					_ => "right",
+				} + "/palm"),
+		);
+		let _node = Node::generate(&INTERNAL_CLIENT, false).add_to_scenegraph_owned()?;
+		Spatial::add_to(&_node.0, None, Mat4::IDENTITY, false);
+		let hand = InputDataType::Hand(Hand {
+			right: handed == Handed::Right,
+			..Default::default()
+		});
+		let datamap = Datamap::from_typed(HandDatamap::default())?;
+		let input = InputMethod::add_to(&_node.0, hand, datamap)?;
 
-				for (finger, sk_finger) in [
-					(&mut hand.base.index, sk_hand.fingers[1]),
-					(&mut hand.base.middle, sk_hand.fingers[2]),
-					(&mut hand.base.ring, sk_hand.fingers[3]),
-					(&mut hand.base.little, sk_hand.fingers[4]),
+		Input::hand_visible(handed, false);
+		Ok(SkHand {
+			_node,
+			palm_spatial,
+			palm_object,
+			handed,
+			input,
+			capture_manager: CaptureManager::default(),
+			datamap: Default::default(),
+		})
+	}
+	pub fn update(&mut self, sk: &Sk, token: &MainThreadToken) {
+		let sk_hand = Input::hand(self.handed);
+		let real_hand = Input::hand_source(self.handed) as u32 == HandSource::Articulated as u32;
+		if let InputDataType::Hand(hand) = &mut *self.input.data.lock() {
+			let input_node = self.input.spatial.node().unwrap();
+			input_node.set_enabled(
+				(real_hand || sk.get_active_display_mode() == DisplayMode::Flatscreen)
+					&& sk_hand.tracked.is_active(),
+			);
+			if input_node.enabled() {
+				hand.thumb.tip = convert_joint(sk_hand.fingers[0][4]);
+				hand.thumb.distal = convert_joint(sk_hand.fingers[0][3]);
+				hand.thumb.proximal = convert_joint(sk_hand.fingers[0][2]);
+				hand.thumb.metacarpal = convert_joint(sk_hand.fingers[0][1]);
+
+				for (finger, mut sk_finger) in [
+					(&mut hand.index, sk_hand.fingers[1]),
+					(&mut hand.middle, sk_hand.fingers[2]),
+					(&mut hand.ring, sk_hand.fingers[3]),
+					(&mut hand.little, sk_hand.fingers[4]),
 				] {
+					sk_finger[4].radius = 0.0;
 					finger.tip = convert_joint(sk_finger[4]);
 					finger.distal = convert_joint(sk_finger[3]);
 					finger.intermediate = convert_joint(sk_finger[2]);
@@ -62,24 +104,134 @@ impl SkHand {
 					finger.metacarpal = convert_joint(sk_finger[0]);
 				}
 
-				hand.base.palm.position = sk_hand.palm.position;
-				hand.base.palm.rotation = sk_hand.palm.orientation;
-				hand.base.palm.radius =
+				hand.palm.position = Vec3::from(sk_hand.palm.position).into();
+				hand.palm.rotation = Quat::from(sk_hand.palm.orientation).into();
+				hand.palm.radius =
 					(sk_hand.fingers[2][0].radius + sk_hand.fingers[2][1].radius) * 0.5;
 
-				hand.base.wrist.position = sk_hand.wrist.position;
-				hand.base.wrist.rotation = sk_hand.wrist.orientation;
-				hand.base.wrist.radius =
+				self.palm_spatial
+					.set_local_transform(Mat4::from_rotation_translation(
+						hand.palm.rotation.into(),
+						hand.palm.position.into(),
+					));
+
+				hand.wrist.position = Vec3::from(sk_hand.wrist.position).into();
+				hand.wrist.rotation = Quat::from(sk_hand.wrist.orientation).into();
+				hand.wrist.radius =
 					(sk_hand.fingers[0][0].radius + sk_hand.fingers[4][0].radius) * 0.5;
 
-				hand.base.elbow = None;
+				hand.elbow = None;
+
+				self.draw(
+					token,
+					if self.capture_manager.capture.is_none() {
+						Color128::new_rgb(1.0, 1.0, 1.0)
+					} else {
+						Color128::new_rgb(0.0, 1.0, 0.75)
+					},
+					hand,
+				);
 			}
 		}
-		let mut fbb = flexbuffers::Builder::default();
-		let mut map = fbb.start_map();
-		map.push("grabStrength", sk_hand.grip_activation);
-		map.push("pinchStrength", sk_hand.pinch_activation);
-		map.end_map();
-		*self.hand.datamap.lock() = Datamap::new(fbb.take_buffer()).ok();
+		self.datamap.pinch_strength = sk_hand.pinch_activation;
+		self.datamap.grab_strength = sk_hand.grip_activation;
+		*self.input.datamap.lock() = Datamap::from_typed(&self.datamap).unwrap();
+
+		let distance_calculator = |space: &Arc<Spatial>, data: &InputDataType, field: &Field| {
+			let InputDataType::Hand(hand) = data else {
+				return None;
+			};
+			let thumb_tip_distance = field.distance(space, hand.thumb.tip.position.into());
+			let index_tip_distance = field.distance(space, hand.index.tip.position.into());
+			let middle_tip_distance = field.distance(space, hand.middle.tip.position.into());
+			let ring_tip_distance = field.distance(space, hand.ring.tip.position.into());
+
+			Some(
+				(thumb_tip_distance * 0.3)
+					+ (index_tip_distance * 0.4)
+					+ (middle_tip_distance * 0.15)
+					+ (ring_tip_distance * 0.15),
+			)
+		};
+
+		self.capture_manager.update_capture(&self.input);
+		self.capture_manager
+			.set_new_capture(&self.input, distance_calculator);
+		self.capture_manager.apply_capture(&self.input);
+
+		if self.capture_manager.capture.is_some() {
+			return;
+		}
+
+		let sorted_handlers = get_sorted_handlers(&self.input, distance_calculator);
+		self.input.set_handler_order(sorted_handlers.iter());
+	}
+
+	fn draw(&self, token: &MainThreadToken, color: Color128, hand: &Hand) {
+		// thumb
+		Lines::add_list(
+			token,
+			&[
+				joint_to_line_point(&hand.thumb.tip, color),
+				joint_to_line_point(&hand.thumb.distal, color),
+				joint_to_line_point(&hand.thumb.proximal, color),
+				joint_to_line_point(&hand.thumb.metacarpal, color),
+			],
+		);
+		// index
+		Lines::add_list(
+			token,
+			&[
+				joint_to_line_point(&hand.index.tip, color),
+				joint_to_line_point(&hand.index.distal, color),
+				joint_to_line_point(&hand.index.intermediate, color),
+				joint_to_line_point(&hand.index.proximal, color),
+				joint_to_line_point(&hand.index.metacarpal, color),
+			],
+		);
+		// middle
+		Lines::add_list(
+			token,
+			&[
+				joint_to_line_point(&hand.middle.tip, color),
+				joint_to_line_point(&hand.middle.distal, color),
+				joint_to_line_point(&hand.middle.intermediate, color),
+				joint_to_line_point(&hand.middle.proximal, color),
+				joint_to_line_point(&hand.middle.metacarpal, color),
+			],
+		);
+		// ring
+		Lines::add_list(
+			token,
+			&[
+				joint_to_line_point(&hand.ring.tip, color),
+				joint_to_line_point(&hand.ring.distal, color),
+				joint_to_line_point(&hand.ring.intermediate, color),
+				joint_to_line_point(&hand.ring.proximal, color),
+				joint_to_line_point(&hand.ring.metacarpal, color),
+			],
+		);
+
+		// palm
+		Lines::add_list(
+			token,
+			&[
+				joint_to_line_point(&hand.wrist, color),
+				joint_to_line_point(&hand.thumb.metacarpal, color),
+				joint_to_line_point(&hand.index.metacarpal, color),
+				joint_to_line_point(&hand.middle.metacarpal, color),
+				joint_to_line_point(&hand.ring.metacarpal, color),
+				joint_to_line_point(&hand.little.metacarpal, color),
+				joint_to_line_point(&hand.wrist, color),
+			],
+		);
+	}
+}
+
+fn joint_to_line_point(joint: &Joint, color: Color128) -> LinePoint {
+	LinePoint {
+		pt: Vec3::from(joint.position).into(),
+		thickness: joint.radius * 2.0,
+		color: color.into(),
 	}
 }

src/objects/mod.rs

@@ -1 +1,274 @@
+#![allow(unused)]
+
+use crate::{
+	core::client::INTERNAL_CLIENT,
+	nodes::{
+		fields::{Field, Shape, EXPORTED_FIELDS},
+		spatial::{Spatial, EXPORTED_SPATIALS},
+		Node, OwnedNode,
+	},
+};
+use glam::{vec3, Mat4};
+use input::{
+	eye_pointer::EyePointer, mouse_pointer::MousePointer, sk_controller::SkController,
+	sk_hand::SkHand,
+};
+use play_space::PlaySpaceBounds;
+use std::{marker::PhantomData, sync::Arc};
+use stereokit_rust::{
+	sk::{DisplayMode, MainThreadToken, Sk},
+	system::{Handed, Input, Key, World},
+	util::Device,
+};
+use zbus::{interface, object_server::Interface, zvariant::OwnedObjectPath, Connection};
+
 pub mod input;
+pub mod play_space;
+
+enum Inputs {
+	XR {
+		controller_left: SkController,
+		controller_right: SkController,
+		hand_left: SkHand,
+		hand_right: SkHand,
+		eye_pointer: Option<EyePointer>,
+	},
+	MousePointer(MousePointer),
+	// Controllers((SkController, SkController)),
+	Hands {
+		left: SkHand,
+		right: SkHand,
+	},
+}
+
+pub struct ServerObjects {
+	connection: Connection,
+	hmd: (Arc<Spatial>, ObjectHandle<SpatialRef>),
+	play_space: Option<(Arc<Spatial>, ObjectHandle<SpatialRef>)>,
+	inputs: Inputs,
+	disable_controllers: bool,
+	disable_hands: bool,
+}
+impl ServerObjects {
+	pub fn new(
+		connection: Connection,
+		sk: &Sk,
+		disable_controllers: bool,
+		disable_hands: bool,
+	) -> ServerObjects {
+		let hmd = SpatialRef::create(&connection, "/org/stardustxr/HMD");
+
+		let play_space = (World::has_bounds()
+			&& World::get_bounds_size().x != 0.0
+			&& World::get_bounds_size().y != 0.0)
+			.then(|| SpatialRef::create(&connection, "/org/stardustxr/PlaySpace"));
+		if play_space.is_some() {
+			let dbus_connection = connection.clone();
+			tokio::task::spawn(async move {
+				PlaySpaceBounds::create(&dbus_connection).await;
+				dbus_connection
+					.request_name("org.stardustxr.PlaySpace")
+					.await
+					.unwrap();
+			});
+		}
+
+		tokio::task::spawn({
+			let connection = connection.clone();
+			async move {
+				connection
+					.request_name("org.stardustxr.Controllers")
+					.await
+					.unwrap();
+				connection
+					.request_name("org.stardustxr.Hands")
+					.await
+					.unwrap();
+			}
+		});
+
+		let inputs = if sk.get_active_display_mode() == DisplayMode::MixedReality {
+			Inputs::XR {
+				controller_left: SkController::new(&connection, Handed::Left).unwrap(),
+				controller_right: SkController::new(&connection, Handed::Right).unwrap(),
+				hand_left: SkHand::new(&connection, Handed::Left).unwrap(),
+				hand_right: SkHand::new(&connection, Handed::Right).unwrap(),
+				eye_pointer: Device::has_eye_gaze()
+					.then(EyePointer::new)
+					.transpose()
+					.unwrap(),
+			}
+		} else {
+			Inputs::MousePointer(MousePointer::new().unwrap())
+		};
+
+		ServerObjects {
+			connection,
+			hmd,
+			play_space,
+			inputs,
+			disable_controllers,
+			disable_hands,
+		}
+	}
+
+	pub fn update(&mut self, sk: &Sk, token: &MainThreadToken) {
+		let hmd_pose = Input::get_head();
+		self.hmd
+			.0
+			.set_local_transform(Mat4::from_scale_rotation_translation(
+				vec3(1.0, 1.0, 1.0),
+				hmd_pose.orientation.into(),
+				hmd_pose.position.into(),
+			));
+
+		if let Some(play_space) = self.play_space.as_ref() {
+			let pose = World::get_bounds_pose();
+			play_space
+				.0
+				.set_local_transform(Mat4::from_rotation_translation(
+					pose.orientation.into(),
+					pose.position.into(),
+				));
+		}
+
+		if sk.get_active_display_mode() != DisplayMode::MixedReality {
+			if Input::key(Key::F6).is_just_inactive() {
+				self.inputs = Inputs::MousePointer(MousePointer::new().unwrap());
+			}
+			// if Input::key(Key::F7).is_just_inactive() {
+			// 	self.inputs = Inputs::Controllers((
+			// 		SkController::new(Handed::Left).unwrap(),
+			// 		SkController::new(Handed::Right).unwrap(),
+			// 	));
+			// }
+			if Input::key(Key::F8).is_just_inactive() {
+				self.inputs = Inputs::Hands {
+					left: SkHand::new(&self.connection, Handed::Left).unwrap(),
+					right: SkHand::new(&self.connection, Handed::Right).unwrap(),
+				};
+			}
+		}
+
+		match &mut self.inputs {
+			Inputs::XR {
+				controller_left,
+				controller_right,
+				hand_left,
+				hand_right,
+				eye_pointer,
+			} => {
+				if !self.disable_controllers {
+					controller_left.update(token);
+					controller_right.update(token);
+				}
+				if !self.disable_hands {
+					hand_left.update(sk, token);
+					hand_right.update(sk, token);
+				}
+				if let Some(eye_pointer) = eye_pointer {
+					eye_pointer.update();
+				}
+			}
+			Inputs::MousePointer(mouse_pointer) => mouse_pointer.update(),
+			// Inputs::Controllers((left, right)) => {
+			// 	left.update(token);
+			// 	right.update(token);
+			// }
+			Inputs::Hands { left, right } => {
+				left.update(sk, token);
+				right.update(sk, token);
+			}
+		}
+	}
+}
+
+pub struct ObjectHandle<I: Interface>(Connection, OwnedObjectPath, PhantomData<I>);
+impl<I: Interface> Drop for ObjectHandle<I> {
+	fn drop(&mut self) {
+		let connection = self.0.clone();
+		let object_path = self.1.clone();
+		tokio::task::spawn(async move {
+			connection.object_server().remove::<I, _>(object_path);
+		});
+	}
+}
+
+pub struct SpatialRef(u64, OwnedNode);
+impl SpatialRef {
+	pub fn create(connection: &Connection, path: &str) -> (Arc<Spatial>, ObjectHandle<SpatialRef>) {
+		let node = OwnedNode(Arc::new(Node::generate(&INTERNAL_CLIENT, false)));
+		let spatial = Spatial::add_to(&node.0, None, Mat4::IDENTITY, false);
+		let uid: u64 = rand::random();
+		EXPORTED_SPATIALS.lock().insert(uid, node.0.clone());
+
+		tokio::task::spawn({
+			let connection = connection.clone();
+			let path = path.to_string();
+			async move {
+				connection
+					.object_server()
+					.at(path, Self(uid, node))
+					.await
+					.unwrap();
+			}
+		});
+		(
+			spatial,
+			ObjectHandle(
+				connection.clone(),
+				OwnedObjectPath::try_from(path.to_string()).unwrap(),
+				PhantomData,
+			),
+		)
+	}
+}
+#[interface(name = "org.stardustxr.SpatialRef")]
+impl SpatialRef {
+	#[zbus(property)]
+	fn uid(&self) -> u64 {
+		self.0
+	}
+}
+
+pub struct FieldRef(u64, OwnedNode);
+impl FieldRef {
+	pub fn create(
+		connection: &Connection,
+		path: &str,
+		shape: Shape,
+	) -> (Arc<Field>, ObjectHandle<FieldRef>) {
+		let node = OwnedNode(Arc::new(Node::generate(&INTERNAL_CLIENT, false)));
+		Spatial::add_to(&node.0, None, Mat4::IDENTITY, false);
+		let field = Field::add_to(&node.0, shape).unwrap();
+		let uid: u64 = rand::random();
+		EXPORTED_FIELDS.lock().insert(uid, node.0.clone());
+
+		tokio::task::spawn({
+			let connection = connection.clone();
+			let path = path.to_string();
+			async move {
+				connection
+					.object_server()
+					.at(path, Self(uid, node))
+					.await
+					.unwrap();
+			}
+		});
+		(
+			field,
+			ObjectHandle(
+				connection.clone(),
+				OwnedObjectPath::try_from(path.to_string()).unwrap(),
+				PhantomData,
+			),
+		)
+	}
+}
+#[interface(name = "org.stardustxr.FieldRef")]
+impl FieldRef {
+	#[zbus(property)]
+	fn uid(&self) -> u64 {
+		self.0
+	}
+}

src/objects/play_space.rs

@@ -0,0 +1,26 @@
+use stereokit_rust::system::World;
+use zbus::{interface, Connection, ObjectServer};
+
+pub struct PlaySpaceBounds;
+impl PlaySpaceBounds {
+	pub async fn create(connection: &Connection) {
+		connection
+			.object_server()
+			.at("/org/stardustxr/PlaySpace", Self)
+			.await
+			.unwrap();
+	}
+}
+#[interface(name = "org.stardustxr.PlaySpace")]
+impl PlaySpaceBounds {
+	#[zbus(property)]
+	fn bounds(&self) -> Vec<(f64, f64)> {
+		let bounds = World::get_bounds_size();
+		vec![
+			((bounds.x).into(), (bounds.y).into()),
+			((bounds.x).into(), (-bounds.y).into()),
+			((-bounds.x).into(), (-bounds.y).into()),
+			((-bounds.x).into(), (bounds.y).into()),
+		]
+	}
+}

src/session.rs

@@ -0,0 +1,114 @@
+use crate::core::client::CLIENTS;
+use crate::core::client_state::ClientStateParsed;
+#[cfg(feature = "wayland")]
+use crate::wayland::WAYLAND_DISPLAY;
+use crate::{CliArgs, STARDUST_INSTANCE};
+use directories::ProjectDirs;
+use rustc_hash::FxHashMap;
+use std::os::unix::fs::PermissionsExt;
+use std::path::Path;
+use std::process::{Child, Command, Stdio};
+use std::time::Duration;
+use tokio::task::LocalSet;
+use tracing::info;
+
+pub async fn save_session(project_dirs: &ProjectDirs) {
+	let session_id = nanoid::nanoid!();
+	let state_dir = project_dirs.state_dir().unwrap();
+	let session_dir = state_dir.join(&session_id);
+	std::fs::create_dir_all(&session_dir).unwrap();
+	let _ = std::fs::remove_dir_all(state_dir.join("latest"));
+	std::os::unix::fs::symlink(&session_dir, state_dir.join("latest")).unwrap();
+
+	let local_set = LocalSet::new();
+	for client in CLIENTS.get_vec() {
+		let session_dir = session_dir.clone();
+		local_set.spawn_local(async move {
+			tokio::select! {
+				biased;
+				s = client.save_state() => {if let Some(s) = s { s.to_file(&session_dir) }},
+				_ = tokio::time::sleep(Duration::from_millis(100)) => (),
+			}
+		});
+	}
+	local_set.await;
+	info!("Session ID for restore is {session_id}");
+}
+
+pub fn launch_start(cli_args: &CliArgs, project_dirs: &ProjectDirs) -> Vec<Child> {
+	match (&cli_args.restore, &cli_args.startup_script) {
+		(Some(session_id), _) => restore_session(
+			&project_dirs.state_dir().unwrap().join(session_id),
+			cli_args.debug_launched_clients,
+		),
+		(None, Some(startup_script)) => run_script(
+			&startup_script.clone().canonicalize().unwrap_or_default(),
+			cli_args.debug_launched_clients,
+		),
+		(None, None) => run_script(
+			&project_dirs.config_dir().join("startup"),
+			cli_args.debug_launched_clients,
+		),
+	}
+}
+
+pub fn restore_session(session_dir: &Path, debug_launched_clients: bool) -> Vec<Child> {
+	let Ok(clients) = session_dir.read_dir() else {
+		return Vec::new();
+	};
+	clients
+		.filter_map(Result::ok)
+		.filter_map(|c| ClientStateParsed::from_file(&c.path()))
+		.filter_map(ClientStateParsed::launch_command)
+		.filter_map(|c| run_client(c, debug_launched_clients))
+		.collect()
+}
+
+pub fn run_script(script_path: &Path, debug_launched_clients: bool) -> Vec<Child> {
+	let _ = std::fs::set_permissions(script_path, std::fs::Permissions::from_mode(0o755));
+	let startup_command = Command::new(script_path);
+	run_client(startup_command, debug_launched_clients)
+		.map(|c| vec![c])
+		.unwrap_or_default()
+}
+
+pub fn run_client(mut command: Command, debug_launched_clients: bool) -> Option<Child> {
+	command.stdin(Stdio::null());
+	if !debug_launched_clients {
+		command.stdout(Stdio::null());
+		command.stderr(Stdio::null());
+	}
+	for (var, value) in connection_env() {
+		command.env(var, value);
+	}
+	let child = command.spawn().ok()?;
+	Some(child)
+}
+
+pub fn connection_env() -> FxHashMap<String, String> {
+	macro_rules! var_env_insert {
+		($env:ident, $name:ident) => {
+			$env.insert(stringify!($name).to_string(), $name.get().unwrap().clone());
+		};
+	}
+
+	let mut env: FxHashMap<String, String> = FxHashMap::default();
+	var_env_insert!(env, STARDUST_INSTANCE);
+
+	if let Some(flat_wayland_display) = std::env::var_os("WAYLAND_DISPLAY") {
+		env.insert(
+			"FLAT_WAYLAND_DISPLAY".to_string(),
+			flat_wayland_display.to_string_lossy().into_owned(),
+		);
+	}
+	#[cfg(feature = "wayland")]
+	{
+		var_env_insert!(env, WAYLAND_DISPLAY);
+		env.insert("GDK_BACKEND".to_string(), "wayland".to_string());
+		env.insert("QT_QPA_PLATFORM".to_string(), "wayland".to_string());
+		env.insert("MOZ_ENABLE_WAYLAND".to_string(), "1".to_string());
+		env.insert("CLUTTER_BACKEND".to_string(), "wayland".to_string());
+		env.insert("SDL_VIDEODRIVER".to_string(), "wayland".to_string());
+	}
+	env
+}

src/wayland/compositor.rs

@@ -1,9 +1,25 @@
-use super::{state::WaylandState, surface::CoreSurface};
-use smithay::{
-	delegate_compositor,
-	reexports::wayland_server::protocol::wl_surface::WlSurface,
-	wayland::compositor::{self, CompositorHandler, CompositorState},
+use super::{
+	state::{ClientState, WaylandState},
+	utils::{ChildInfoExt, WlSurfaceExt},
+	xdg_shell::surface_panel_item,
 };
+use crate::{
+	nodes::items::panel::{ChildInfo, Geometry, SurfaceId},
+	wayland::surface::CoreSurface,
+};
+use parking_lot::Mutex;
+use portable_atomic::{AtomicU32, Ordering};
+use rand::Rng;
+use smithay::{
+	backend::renderer::utils::{on_commit_buffer_handler, RendererSurfaceStateUserData},
+	delegate_compositor,
+	reexports::wayland_server::{protocol::wl_surface::WlSurface, Client},
+	wayland::compositor::{
+		self, add_post_commit_hook, CompositorClientState, CompositorHandler, CompositorState,
+	},
+};
+use std::sync::Arc;
+use tracing::debug;
 
 impl CompositorHandler for WaylandState {
 	fn compositor_state(&mut self) -> &mut CompositorState {
@@ -11,17 +27,101 @@ impl CompositorHandler for WaylandState {
 	}
 
 	fn commit(&mut self, surface: &WlSurface) {
+		debug!(?surface, "Surface commit");
+
+		on_commit_buffer_handler::<WaylandState>(surface);
+		let mut count = 0;
 		compositor::with_states(surface, |data| {
-			data.data_map.insert_if_missing_threadsafe(|| {
-				CoreSurface::new(
-					&self.weak_ref.upgrade().unwrap(),
-					&self.display,
-					self.display_handle.clone(),
-					surface,
-				)
-			})
+			let count_new = data
+				.data_map
+				.insert_if_missing_threadsafe(|| AtomicU32::new(0));
+			if !count_new {
+				if let Some(stored_count) = data.data_map.get::<AtomicU32>() {
+					count = stored_count.fetch_add(1, Ordering::Relaxed);
+				}
+			}
+
+			data.data_map.get::<Arc<CoreSurface>>().cloned()
 		});
 	}
+
+	fn client_compositor_state<'a>(&self, client: &'a Client) -> &'a CompositorClientState {
+		&client.get_data::<ClientState>().unwrap().compositor_state
+	}
+
+	fn new_subsurface(&mut self, surface: &WlSurface, parent: &WlSurface) {
+		let id = rand::thread_rng().gen_range(0..u64::MAX);
+		surface.insert_data(SurfaceId::Child(id));
+		CoreSurface::add_to(surface);
+		let Some(parent_surface_id) = parent.get_data::<SurfaceId>() else {
+			return;
+		};
+		surface.insert_data(Mutex::new(ChildInfo {
+			id,
+			parent: parent_surface_id,
+			geometry: Geometry {
+				origin: [0; 2].into(),
+				size: [256; 2].into(),
+			},
+			z_order: 1,
+			receives_input: false,
+		}));
+
+		let Some(panel_item) = surface_panel_item(parent) else {
+			return;
+		};
+		let panel_item_weak = Arc::downgrade(&panel_item);
+		add_post_commit_hook(surface, move |_: &mut WaylandState, _dh, surf| {
+			if surface_panel_item(surf).is_some() {
+				return;
+			}
+			surf.insert_data(panel_item_weak.clone());
+
+			let Some(panel_item) = surface_panel_item(surf) else {
+				return;
+			};
+			panel_item.backend.new_child(surf);
+		});
+
+		add_post_commit_hook(surface, move |_: &mut WaylandState, _dh, surf| {
+			let Some(view) = surf
+				.get_data_raw::<RendererSurfaceStateUserData, _, _>(|s| s.lock().ok()?.view())
+				.flatten()
+			else {
+				return;
+			};
+			let mut changed = false;
+			surf.with_child_info(|info| {
+				if info.geometry.origin.x != view.offset.x
+					&& info.geometry.origin.y != view.offset.y
+				{
+					changed = true;
+				}
+				if info.geometry.size.x != view.dst.w as u32
+					&& info.geometry.size.y != view.dst.h as u32
+				{
+					changed = true;
+				}
+				info.geometry.size = [view.dst.w as u32, view.dst.h as u32].into();
+			});
+
+			let Some(panel_item) = surface_panel_item(surf) else {
+				return;
+			};
+			if changed {
+				panel_item.backend.reposition_child(surf);
+			}
+		});
+	}
+
+	fn destroyed(&mut self, surface: &WlSurface) {
+		let Some(panel_item) = surface_panel_item(surface) else {
+			return;
+		};
+		if surface.get_child_info().is_some() {
+			panel_item.backend.drop_child(surface);
+		}
+	}
 }
 
 delegate_compositor!(WaylandState);

src/wayland/decoration.rs

@@ -1,34 +1,97 @@
 use super::state::WaylandState;
 use smithay::{
-	delegate_kde_decoration, delegate_xdg_decoration,
-	reexports::wayland_protocols::xdg::decoration::zv1::server::zxdg_toplevel_decoration_v1::Mode,
-	wayland::shell::{
-		self, kde::decoration::KdeDecorationHandler, xdg::decoration::XdgDecorationHandler,
+	delegate_kde_decoration,
+	reexports::{
+		wayland_protocols::xdg::{
+			decoration::zv1::server::{
+				zxdg_decoration_manager_v1::{self, ZxdgDecorationManagerV1},
+				zxdg_toplevel_decoration_v1::{self, Mode, ZxdgToplevelDecorationV1},
+			},
+			shell::server::xdg_toplevel::XdgToplevel,
+		},
+		wayland_protocols_misc::server_decoration::server::org_kde_kwin_server_decoration::{
+			Mode as KdeMode, OrgKdeKwinServerDecoration,
+		},
+		wayland_server::{
+			protocol::wl_surface::WlSurface, Client, DataInit, Dispatch, DisplayHandle,
+			GlobalDispatch, New, Resource, WEnum, Weak,
+		},
 	},
+	wayland::shell::{self, kde::decoration::KdeDecorationHandler},
 };
 
-impl XdgDecorationHandler for WaylandState {
-	fn new_decoration(&mut self, toplevel: smithay::wayland::shell::xdg::ToplevelSurface) {
-		toplevel.with_pending_state(|state| {
-			state.decoration_mode = Some(Mode::ServerSide);
-		});
-		toplevel.send_configure();
-	}
-
-	fn request_mode(
-		&mut self,
-		_toplevel: smithay::wayland::shell::xdg::ToplevelSurface,
-		_mode: smithay::reexports::wayland_protocols::xdg::decoration::zv1::server::zxdg_toplevel_decoration_v1::Mode,
+impl GlobalDispatch<ZxdgDecorationManagerV1, (), WaylandState> for WaylandState {
+	fn bind(
+		_state: &mut WaylandState,
+		_handle: &DisplayHandle,
+		_client: &Client,
+		resource: New<ZxdgDecorationManagerV1>,
+		_global_data: &(),
+		data_init: &mut DataInit<'_, WaylandState>,
 	) {
+		data_init.init(resource, ());
+	}
+}
+
+impl Dispatch<ZxdgDecorationManagerV1, (), WaylandState> for WaylandState {
+	fn request(
+		_state: &mut WaylandState,
+		_client: &Client,
+		_resource: &ZxdgDecorationManagerV1,
+		request: zxdg_decoration_manager_v1::Request,
+		_data: &(),
+		_dhandle: &DisplayHandle,
+		data_init: &mut DataInit<'_, WaylandState>,
+	) {
+		match request {
+			zxdg_decoration_manager_v1::Request::Destroy => (),
+			zxdg_decoration_manager_v1::Request::GetToplevelDecoration { id, toplevel } => {
+				data_init.init(id, toplevel.downgrade());
+			}
+			_ => unreachable!(),
+		}
+	}
+}
+impl Dispatch<ZxdgToplevelDecorationV1, Weak<XdgToplevel>, WaylandState> for WaylandState {
+	fn request(
+		_state: &mut WaylandState,
+		_client: &Client,
+		resource: &ZxdgToplevelDecorationV1,
+		request: zxdg_toplevel_decoration_v1::Request,
+		_data: &Weak<XdgToplevel>,
+		_dhandle: &DisplayHandle,
+		_data_init: &mut DataInit<'_, WaylandState>,
+	) {
+		match request {
+			zxdg_toplevel_decoration_v1::Request::SetMode { mode: _ } => {
+				resource.configure(Mode::ServerSide);
+			}
+			zxdg_toplevel_decoration_v1::Request::UnsetMode => {
+				resource.configure(Mode::ServerSide);
+			}
+			zxdg_toplevel_decoration_v1::Request::Destroy => (),
+			_ => unreachable!(),
+		}
 	}
-
-	fn unset_mode(&mut self, _toplevel: smithay::wayland::shell::xdg::ToplevelSurface) {}
 }
-delegate_xdg_decoration!(WaylandState);
 
 impl KdeDecorationHandler for WaylandState {
 	fn kde_decoration_state(&self) -> &shell::kde::decoration::KdeDecorationState {
 		&self.kde_decoration_state
 	}
+
+	fn new_decoration(&mut self, _surface: &WlSurface, decoration: &OrgKdeKwinServerDecoration) {
+		decoration.mode(KdeMode::Server);
+	}
+
+	fn request_mode(
+		&mut self,
+		_surface: &WlSurface,
+		decoration: &OrgKdeKwinServerDecoration,
+		mode: WEnum<KdeMode>,
+	) {
+		let Ok(mode) = mode.into_result() else { return };
+		decoration.mode(mode);
+	}
 }
 delegate_kde_decoration!(WaylandState);

src/wayland/drm.rs

@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+// Re-export only the actual code, and then only use this re-export
+// The `generated` module below is just some boilerplate to properly isolate stuff
+// and avoid exposing internal details.
+//
+// You can use all the types from my_protocol as if they went from `wayland_client::protocol`.
+pub use generated::wl_drm;
+
+#[allow(non_upper_case_globals, non_camel_case_types)]
+mod generated {
+	use smithay::reexports::wayland_server::{self, protocol::*};
+
+	pub mod __interfaces {
+		use smithay::reexports::wayland_server::protocol::__interfaces::*;
+		wayland_scanner::generate_interfaces!("src/wayland/wayland-drm.xml");
+	}
+	use self::__interfaces::*;
+
+	wayland_scanner::generate_server_code!("src/wayland/wayland-drm.xml");
+}
+
+use super::state::WaylandState;
+use smithay::{
+	backend::allocator::{
+		dmabuf::{Dmabuf, DmabufFlags},
+		Fourcc, Modifier,
+	},
+	reexports::wayland_server::{
+		Client, DataInit, Dispatch, DisplayHandle, GlobalDispatch, New, Resource,
+	},
+};
+use std::convert::TryFrom;
+
+impl GlobalDispatch<wl_drm::WlDrm, (), WaylandState> for WaylandState {
+	fn bind(
+		state: &mut WaylandState,
+		_dh: &DisplayHandle,
+		_client: &Client,
+		resource: New<wl_drm::WlDrm>,
+		_global_data: &(),
+		data_init: &mut DataInit<'_, WaylandState>,
+	) {
+		let drm_instance = data_init.init(resource, ());
+
+		drm_instance.device("/dev/dri/renderD128".to_string());
+		if drm_instance.version() >= 2 {
+			drm_instance.capabilities(wl_drm::Capability::Prime as u32);
+		}
+		for format in state.drm_formats.iter() {
+			if let Ok(converted) = wl_drm::Format::try_from(*format as u32) {
+				drm_instance.format(converted as u32);
+			}
+		}
+	}
+
+	fn can_view(_client: Client, _global_dataa: &()) -> bool {
+		true
+	}
+}
+
+impl Dispatch<wl_drm::WlDrm, (), WaylandState> for WaylandState {
+	fn request(
+		state: &mut WaylandState,
+		_client: &Client,
+		drm: &wl_drm::WlDrm,
+		request: wl_drm::Request,
+		_data: &(),
+		_dh: &DisplayHandle,
+		data_init: &mut DataInit<'_, WaylandState>,
+	) {
+		match request {
+			wl_drm::Request::Authenticate { .. } => drm.authenticated(),
+			wl_drm::Request::CreateBuffer { .. } => drm.post_error(
+				wl_drm::Error::InvalidName,
+				String::from("Flink handles are unsupported, use PRIME"),
+			),
+			wl_drm::Request::CreatePlanarBuffer { .. } => drm.post_error(
+				wl_drm::Error::InvalidName,
+				String::from("Flink handles are unsupported, use PRIME"),
+			),
+			wl_drm::Request::CreatePrimeBuffer {
+				id,
+				name,
+				width,
+				height,
+				format,
+				offset0,
+				stride0,
+				..
+			} => {
+				let format = match Fourcc::try_from(format) {
+					Ok(format) => {
+						if !state.drm_formats.contains(&format) {
+							drm.post_error(
+								wl_drm::Error::InvalidFormat,
+								String::from("Format not advertised by wl_drm"),
+							);
+							return;
+						}
+						format
+					}
+					Err(_) => {
+						drm.post_error(
+							wl_drm::Error::InvalidFormat,
+							String::from("Format unknown / not advertised by wl_drm"),
+						);
+						return;
+					}
+				};
+
+				if width < 1 || height < 1 {
+					drm.post_error(
+						wl_drm::Error::InvalidFormat,
+						String::from("width or height not positive"),
+					);
+					return;
+				}
+
+				let mut dma = Dmabuf::builder(
+					(width, height),
+					format,
+					Modifier::Invalid,
+					DmabufFlags::empty(),
+				);
+				dma.add_plane(name, 0, offset0 as u32, stride0 as u32);
+				match dma.build() {
+					Some(dmabuf) => {
+						state.dmabuf_tx.send((dmabuf.clone(), None)).unwrap();
+						data_init.init(id, dmabuf);
+					}
+					None => {
+						// Buffer import failed. The protocol documentation heavily implies killing the
+						// client is the right thing to do here.
+						drm.post_error(
+							wl_drm::Error::InvalidName,
+							"dmabuf global was destroyed on server",
+						);
+					}
+				}
+			}
+		}
+	}
+}

src/wayland/mod.rs

@@ -1,38 +1,45 @@
-pub mod compositor;
+mod compositor;
 mod data_device;
-pub mod decoration;
-pub mod panel_item;
-pub mod seat;
-pub mod shaders;
-pub mod state;
-pub mod surface;
-pub mod xdg_activation;
-pub mod xdg_shell;
+mod decoration;
+mod seat;
+mod state;
+mod surface;
+// mod xdg_activation;
+mod drm;
+mod utils;
+mod xdg_shell;
 
-use self::{panel_item::PanelItem, state::WaylandState, surface::CORE_SURFACES};
-use crate::wayland::state::ClientState;
-use anyhow::{ensure, Result};
+use self::{state::WaylandState, surface::CORE_SURFACES};
+use crate::{core::task, wayland::state::ClientState};
+use color_eyre::eyre::{ensure, Result};
 use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
-use slog::Logger;
-use smithay::{
-	backend::{egl::EGLContext, renderer::gles2::Gles2Renderer},
-	reexports::wayland_server::{backend::GlobalId, Display, ListeningSocket, Resource},
-};
+use smithay::backend::allocator::dmabuf::Dmabuf;
+use smithay::backend::egl::EGLContext;
+use smithay::backend::renderer::gles::GlesRenderer;
+use smithay::backend::renderer::{ImportDma, Renderer};
+use smithay::output::Output;
+use smithay::reexports::wayland_server::backend::ClientId;
+use smithay::reexports::wayland_server::DisplayHandle;
+use smithay::reexports::wayland_server::{Display, ListeningSocket};
+use smithay::wayland::dmabuf;
+use std::ffi::OsStr;
+use std::os::fd::{IntoRawFd, OwnedFd};
 use std::os::unix::prelude::AsRawFd;
 use std::{
 	ffi::c_void,
-	os::unix::{
-		net::UnixListener,
-		prelude::{FromRawFd, RawFd},
-	},
+	os::unix::{net::UnixListener, prelude::FromRawFd},
 	sync::Arc,
 };
-use stereokit as sk;
-use stereokit::StereoKit;
+use stereokit_rust::system::{Backend, BackendGraphics};
+use tokio::io::unix::AsyncFdReadyGuard;
+use tokio::sync::mpsc::UnboundedReceiver;
 use tokio::{
 	io::unix::AsyncFd, net::UnixListener as AsyncUnixListener, sync::mpsc, task::JoinHandle,
 };
+use tracing::{debug_span, info, instrument};
+
+pub static WAYLAND_DISPLAY: OnceCell<String> = OnceCell::new();
 
 struct EGLRawHandles {
 	display: *const c_void,
@@ -41,136 +48,167 @@ struct EGLRawHandles {
 }
 fn get_sk_egl() -> Result<EGLRawHandles> {
 	ensure!(
-		unsafe { sk::sys::backend_graphics_get() }
-			== sk::sys::backend_graphics__backend_graphics_opengles_egl,
+		Backend::graphics() == BackendGraphics::OpenGLESEGL,
 		"StereoKit is not running using EGL!"
 	);
 
 	Ok(unsafe {
 		EGLRawHandles {
-			display: sk::sys::backend_opengl_egl_get_display() as *const c_void,
-			config: sk::sys::backend_opengl_egl_get_config() as *const c_void,
-			context: sk::sys::backend_opengl_egl_get_context() as *const c_void,
+			display: stereokit_rust::system::backend_opengl_egl_get_display() as *const c_void,
+			config: stereokit_rust::system::backend_opengl_egl_get_config() as *const c_void,
+			context: stereokit_rust::system::backend_opengl_egl_get_context() as *const c_void,
 		}
 	})
 }
 
-static GLOBAL_DESTROY_QUEUE: OnceCell<mpsc::Sender<GlobalId>> = OnceCell::new();
+pub struct DisplayWrapper(Mutex<Display<WaylandState>>, DisplayHandle);
+impl DisplayWrapper {
+	pub fn handle(&self) -> DisplayHandle {
+		self.1.clone()
+	}
+	pub fn dispatch_clients(&self, state: &mut WaylandState) -> Result<usize, std::io::Error> {
+		self.0.lock().dispatch_clients(state)
+	}
+	pub fn flush_clients(&self, client: Option<ClientId>) {
+		if let Some(mut lock) = self.0.try_lock() {
+			let _ = lock.backend().flush(client);
+		}
+	}
+	pub fn poll_fd(&self) -> Result<OwnedFd, std::io::Error> {
+		self.0.lock().backend().poll_fd().try_clone_to_owned()
+	}
+}
+
+struct UnownedFd(Option<AsyncFd<OwnedFd>>);
+impl UnownedFd {
+	async fn readable(&self) -> std::io::Result<AsyncFdReadyGuard<'_, OwnedFd>> {
+		self.0.as_ref().unwrap().readable().await
+	}
+}
+impl Drop for UnownedFd {
+	fn drop(&mut self) {
+		self.0.take().unwrap().into_inner().into_raw_fd();
+	}
+}
 
 pub struct Wayland {
-	log: slog::Logger,
-
-	display: Arc<Mutex<Display<WaylandState>>>,
+	display: Arc<DisplayWrapper>,
+	pub socket_name: Option<String>,
 	join_handle: JoinHandle<Result<()>>,
-	renderer: Gles2Renderer,
-	state: Arc<Mutex<WaylandState>>,
+	renderer: GlesRenderer,
+	output: Output,
+	dmabuf_rx: UnboundedReceiver<(Dmabuf, Option<dmabuf::ImportNotifier>)>,
 }
 impl Wayland {
-	pub fn new(log: Logger) -> Result<Self> {
+	pub fn new() -> Result<Self> {
 		let egl_raw_handles = get_sk_egl()?;
 		let renderer = unsafe {
-			Gles2Renderer::new(
-				EGLContext::from_raw(
-					egl_raw_handles.display,
-					egl_raw_handles.config,
-					egl_raw_handles.context,
-					log.clone(),
-				)?,
-				log.clone(),
-			)?
+			GlesRenderer::new(EGLContext::from_raw(
+				egl_raw_handles.display,
+				egl_raw_handles.config,
+				egl_raw_handles.context,
+			)?)?
 		};
 
 		let display: Display<WaylandState> = Display::new()?;
 		let display_handle = display.handle();
 
-		let display = Arc::new(Mutex::new(display));
-		let state = WaylandState::new(log.clone(), display.clone(), display_handle);
+		let (dmabuf_tx, dmabuf_rx) = mpsc::unbounded_channel();
+		let display = Arc::new(DisplayWrapper(Mutex::new(display), display_handle.clone()));
 
-		let (global_destroy_queue_in, global_destroy_queue) = mpsc::channel(8);
-		GLOBAL_DESTROY_QUEUE.set(global_destroy_queue_in).unwrap();
+		let wayland_state = WaylandState::new(display_handle.clone(), &renderer, dmabuf_tx);
+		let output = wayland_state.lock().output.clone();
 
-		let join_handle =
-			Wayland::start_loop(display.clone(), state.clone(), global_destroy_queue)?;
+		let socket = ListeningSocket::bind_auto("wayland", 0..33)?;
+		let socket_name = socket
+			.socket_name()
+			.and_then(OsStr::to_str)
+			.map(ToString::to_string);
+		if let Some(socket_name) = &socket_name {
+			let _ = WAYLAND_DISPLAY.set(socket_name.clone());
+		}
+		info!(socket_name, "Wayland active");
+
+		let join_handle = Wayland::start_loop(display.clone(), socket, wayland_state)?;
 
 		Ok(Wayland {
-			log,
 			display,
+			socket_name,
 			join_handle,
 			renderer,
-			state,
+			output,
+			dmabuf_rx,
 		})
 	}
 
 	fn start_loop(
-		display: Arc<Mutex<Display<WaylandState>>>,
+		display: Arc<DisplayWrapper>,
+		socket: ListeningSocket,
 		state: Arc<Mutex<WaylandState>>,
-		mut global_destroy_queue: mpsc::Receiver<GlobalId>,
 	) -> Result<JoinHandle<Result<()>>> {
-		let socket = ListeningSocket::bind_auto("wayland", 0..33)?;
-		if let Some(socket_name) = socket.socket_name() {
-			println!("Wayland compositor {:?} active", socket_name);
-		}
-
 		let listen_async =
 			AsyncUnixListener::from_std(unsafe { UnixListener::from_raw_fd(socket.as_raw_fd()) })?;
 
-		let dispatch_poll_fd: RawFd = display.lock().backend().poll_fd();
-		let dispatch_poll_listener = AsyncFd::new(dispatch_poll_fd)?;
+		let dispatch_poll_fd = display.poll_fd()?;
+		let dispatch_poll_listener = UnownedFd(Some(AsyncFd::new(dispatch_poll_fd)?));
 
-		let dh1 = display.lock().handle();
+		let dh1 = display.handle();
 		let mut dh2 = dh1.clone();
 
-		Ok(tokio::task::spawn(async move {
+		task::new(|| "wayland loop", async move {
 			let _socket = socket; // Keep the socket alive
 			loop {
 				tokio::select! {
-					e = global_destroy_queue.recv() => { // New global to destroy
-						dh1.remove_global::<WaylandState>(e.unwrap());
-					}
 					acc = listen_async.accept() => { // New client connected
 						let (stream, _) = acc?;
-						let client = dh2.insert_client(stream.into_std()?, Arc::new(ClientState))?;
-
-						state.lock().new_client(client.id(), &dh2);
+						let client_state = Arc::new(ClientState {
+							pid: stream.peer_cred().ok().and_then(|c| c.pid()),
+							id: OnceCell::new(),
+							compositor_state: Default::default(),
+							seat: state.lock().seat.clone(),
+						});
+						let _client = dh2.insert_client(stream.into_std()?, client_state.clone())?;
 					}
 					e = dispatch_poll_listener.readable() => { // Dispatch
 						let mut guard = e?;
-						let mut display = display.lock();
-						display.dispatch_clients(&mut *state.lock())?;
-						display.flush_clients()?;
+						debug_span!("Dispatch wayland event").in_scope(|| -> Result<(), color_eyre::Report> {
+							display.dispatch_clients(&mut state.lock())?;
+							display.flush_clients(None);
+							Ok(())
+						})?;
 						guard.clear_ready();
 					}
 				}
 			}
-		}))
+		})
 	}
 
-	pub fn frame(&mut self, sk: &StereoKit) {
-		let time_ms = (sk.time_getf() * 1000.) as u32;
-
-		for core_surface in CORE_SURFACES.get_valid_contents() {
-			let client_id = core_surface.wl_surface().client_id().unwrap();
-			let seat_data = self.state.lock().seats.get(&client_id).unwrap().clone();
-			core_surface.process(
-				sk,
-				&mut self.renderer,
-				time_ms,
-				&self.log,
-				|data| {
-					PanelItem::on_mapped(&core_surface, data, seat_data);
-				},
-				|data| {
-					PanelItem::if_mapped(&core_surface, data);
-				},
-			);
+	#[instrument(level = "debug", name = "Wayland frame", skip(self))]
+	pub fn update(&mut self) {
+		while let Ok((dmabuf, notifier)) = self.dmabuf_rx.try_recv() {
+			if self.renderer.import_dmabuf(&dmabuf, None).is_err() {
+				if let Some(notifier) = notifier {
+					notifier.failed();
+				}
+			}
 		}
+		for core_surface in CORE_SURFACES.get_valid_contents() {
+			core_surface.process(&mut self.renderer);
+		}
+		let _ = self.renderer.cleanup_texture_cache();
 
-		self.display.lock().flush_clients().unwrap();
+		self.display.flush_clients(None);
+	}
+
+	pub fn frame_event(&self) {
+		for core_surface in CORE_SURFACES.get_valid_contents() {
+			core_surface.frame(self.output.clone());
+		}
 	}
 
 	pub fn make_context_current(&self) {
 		unsafe {
-			self.renderer.egl_context().make_current().unwrap();
+			let _ = self.renderer.egl_context().make_current();
 		}
 	}
 }

src/wayland/panel_item.rs

@@ -1,506 +0,0 @@
-use super::{
-	seat::{KeyboardInfo, SeatData},
-	surface::CoreSurface,
-};
-use crate::{
-	core::{
-		client::{Client, INTERNAL_CLIENT},
-		registry::Registry,
-	},
-	nodes::{
-		items::{register_item_ui_flex, Item, ItemSpecialization, ItemType, TypeInfo},
-		spatial::Spatial,
-		Node,
-	},
-};
-use anyhow::{anyhow, bail, Result};
-use glam::Mat4;
-use lazy_static::lazy_static;
-use mint::Vector2;
-use nanoid::nanoid;
-use serde::Deserialize;
-use smithay::{
-	reexports::wayland_server::protocol::wl_pointer::{Axis, ButtonState},
-	utils::Size,
-	wayland::{compositor::SurfaceData, shell::xdg::XdgToplevelSurfaceData},
-};
-use stardust_xr::schemas::flex::{deserialize, serialize};
-use std::sync::{Arc, Weak};
-use xkbcommon::xkb::{self, ffi::XKB_KEYMAP_FORMAT_TEXT_V1, Keymap};
-
-lazy_static! {
-	static ref ITEM_TYPE_INFO_PANEL: TypeInfo = TypeInfo {
-		type_name: "panel",
-		aliased_local_signals: vec![
-			"applySurfaceMaterial",
-			"applyCursorMaterial",
-			"pointerDeactivate",
-			"pointerScroll",
-			"pointerButton",
-			"pointerMotion",
-			"keyboardSetActive",
-			"keyboardSetKeyState",
-			"keyboardSetModifiers",
-			"resize",
-			"close",
-		],
-		aliased_local_methods: vec![],
-		aliased_remote_signals: vec!["resize", "setCursor",],
-		aliased_remote_methods: vec![],
-		ui: Default::default(),
-		items: Registry::new(),
-		acceptors: Registry::new(),
-	};
-}
-
-pub struct PanelItem {
-	node: Weak<Node>,
-	core_surface: Weak<CoreSurface>,
-	seat_data: SeatData,
-}
-impl PanelItem {
-	pub fn create(core_surface: &Arc<CoreSurface>, seat_data: SeatData) -> Arc<Node> {
-		let node = Arc::new(Node::create(
-			&INTERNAL_CLIENT,
-			"/item/panel/item",
-			&nanoid!(),
-			true,
-		));
-		Spatial::add_to(&node, None, Mat4::IDENTITY).unwrap();
-
-		let specialization = ItemType::Panel(PanelItem {
-			node: Arc::downgrade(&node),
-			core_surface: Arc::downgrade(core_surface),
-			seat_data,
-		});
-		let item = Item::add_to(&node, &ITEM_TYPE_INFO_PANEL, specialization);
-		if let ItemType::Panel(panel) = &item.specialization {
-			let _ = panel.seat_data.panel_item.set(Arc::downgrade(&item));
-		}
-
-		node.add_local_signal(
-			"applySurfaceMaterial",
-			PanelItem::apply_surface_material_flex,
-		);
-		node.add_local_signal("applyCursorMaterial", PanelItem::apply_cursor_material_flex);
-		node.add_local_signal("pointerDeactivate", PanelItem::pointer_deactivate_flex);
-		node.add_local_signal("pointerScroll", PanelItem::pointer_scroll_flex);
-		node.add_local_signal("pointerButton", PanelItem::pointer_button_flex);
-		node.add_local_signal("pointerMotion", PanelItem::pointer_motion_flex);
-		node.add_local_signal(
-			"keyboardActivateString",
-			PanelItem::keyboard_activate_string_flex,
-		);
-		node.add_local_signal(
-			"keyboardActivateNames",
-			PanelItem::keyboard_activate_names_flex,
-		);
-		node.add_local_signal("keyboardDeactivate", PanelItem::keyboard_deactivate_flex);
-		node.add_local_signal("keyboardKeyState", PanelItem::keyboard_key_state_flex);
-		node.add_local_signal("resize", PanelItem::resize_flex);
-		node
-	}
-
-	pub fn from_node(node: &Node) -> &PanelItem {
-		match &node.item.get().unwrap().specialization {
-			ItemType::Panel(panel_item) => panel_item,
-			_ => unreachable!(),
-		}
-	}
-
-	fn apply_surface_material_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		data: &[u8],
-	) -> Result<()> {
-		#[derive(Deserialize)]
-		struct SurfaceMaterialInfo<'a> {
-			model_path: &'a str,
-			idx: u32,
-		}
-		let info: SurfaceMaterialInfo = deserialize(data)?;
-		let model_node = calling_client
-			.scenegraph
-			.get_node(info.model_path)
-			.ok_or_else(|| anyhow!("Model node not found"))?;
-		let model = model_node
-			.model
-			.get()
-			.ok_or_else(|| anyhow!("Node is not a model"))?;
-
-		if let ItemType::Panel(panel_item) = &node.item.get().unwrap().specialization {
-			if let Some(core_surface) = panel_item.core_surface.upgrade() {
-				core_surface.apply_material(model.clone(), info.idx);
-			}
-		}
-
-		Ok(())
-	}
-
-	fn apply_cursor_material_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		data: &[u8],
-	) -> Result<()> {
-		#[derive(Deserialize)]
-		struct SurfaceMaterialInfo<'a> {
-			model_path: &'a str,
-			idx: u32,
-		}
-		let info: SurfaceMaterialInfo = deserialize(data)?;
-		let model_node = calling_client
-			.scenegraph
-			.get_node(info.model_path)
-			.ok_or_else(|| anyhow!("Model node not found"))?;
-		let model = model_node
-			.model
-			.get()
-			.ok_or_else(|| anyhow!("Node is not a model"))?;
-
-		if let ItemType::Panel(panel_item) = &node.item.get().unwrap().specialization {
-			if let Some(cursor) = &*panel_item.seat_data.cursor.lock() {
-				if let Some(core_surface) = cursor.lock().core_surface.upgrade() {
-					core_surface.apply_material(model.clone(), info.idx);
-				}
-			}
-		}
-
-		Ok(())
-	}
-
-	pub fn on_mapped(
-		core_surface: &Arc<CoreSurface>,
-		surface_data: &SurfaceData,
-		seat_data: SeatData,
-	) {
-		if surface_data
-			.data_map
-			.get::<XdgToplevelSurfaceData>()
-			.is_some()
-		{
-			surface_data
-				.data_map
-				.insert_if_missing_threadsafe(|| PanelItem::create(core_surface, seat_data));
-		}
-	}
-
-	pub fn if_mapped(_core_surface: &Arc<CoreSurface>, surface_data: &SurfaceData) {
-		if let Some(panel_node) = surface_data.data_map.get::<Arc<Node>>() {
-			let panel_item = PanelItem::from_node(panel_node);
-
-			// core_surface.with_data(|core_surface_data| {
-			// 	panel_item.resize();
-			// });
-
-			panel_item.set_cursor();
-		}
-	}
-
-	pub fn resize(&self) {
-		self.core_surface.upgrade().unwrap().with_data(|data| {
-			let _ = self
-				.node
-				.upgrade()
-				.unwrap()
-				.send_remote_signal("resize", &serialize(data.size).unwrap());
-		});
-	}
-
-	pub fn set_cursor(&self) {
-		let mut cursor_changed = self.seat_data.cursor_changed.lock();
-		if !*cursor_changed {
-			return;
-		}
-		let mut data = serialize(()).unwrap();
-
-		if let Some(cursor) = &*self.seat_data.cursor.lock() {
-			let cursor = cursor.lock();
-			if let Some(core_surface) = cursor.core_surface.upgrade() {
-				if let Some(mapped_data) = &*core_surface.mapped_data.lock() {
-					data = serialize((mapped_data.size, cursor.hotspot)).unwrap();
-				} else {
-					return;
-				};
-			} else {
-				return;
-			}
-		}
-
-		let _ = self
-			.node
-			.upgrade()
-			.unwrap()
-			.send_remote_signal("setCursor", &data);
-		*cursor_changed = false;
-	}
-
-	fn pointer_deactivate_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		_data: &[u8],
-	) -> Result<()> {
-		let panel_item = PanelItem::from_node(node);
-		if *panel_item.seat_data.pointer_active.lock() {
-			if let Some(core_surface) = panel_item.core_surface.upgrade() {
-				if let Some(pointer) = panel_item.seat_data.pointer() {
-					pointer.leave(0, &core_surface.wl_surface());
-					*panel_item.seat_data.pointer_active.lock() = false;
-					pointer.frame();
-					core_surface.flush_clients();
-				}
-			}
-		}
-
-		Ok(())
-	}
-
-	fn pointer_motion_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		if let ItemType::Panel(panel_item) = &node.item.get().unwrap().specialization {
-			if let Some(pointer) = panel_item.seat_data.pointer() {
-				if let Some(core_surface) = panel_item.core_surface.upgrade() {
-					if let Some(size) = core_surface.with_data(|data| data.size) {
-						let mut position: Vector2<f64> = deserialize(data)?;
-						position.x = position.x.clamp(0.0, size.x as f64);
-						position.y = position.y.clamp(0.0, size.y as f64);
-						let mut pointer_active = panel_item.seat_data.pointer_active.lock();
-						if *pointer_active {
-							pointer.motion(0, position.x, position.y);
-						} else {
-							pointer.enter(0, &core_surface.wl_surface(), position.x, position.y);
-							*pointer_active = true;
-						}
-						pointer.frame();
-						core_surface.flush_clients();
-					}
-				}
-			}
-		}
-
-		Ok(())
-	}
-
-	fn pointer_button_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		if let ItemType::Panel(panel_item) = &node.item.get().unwrap().specialization {
-			if let Some(pointer) = panel_item.seat_data.pointer() {
-				if *panel_item.seat_data.pointer_active.lock() {
-					if let Some(core_surface) = panel_item.core_surface.upgrade() {
-						let (button, state): (u32, u32) = deserialize(data)?;
-						pointer.button(
-							0,
-							0,
-							button,
-							match state {
-								0 => ButtonState::Released,
-								1 => ButtonState::Pressed,
-								_ => {
-									bail!("Button state is out of bounds")
-								}
-							},
-						);
-						pointer.frame();
-						core_surface.flush_clients();
-					}
-				}
-			}
-		}
-
-		Ok(())
-	}
-
-	fn pointer_scroll_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		#[derive(Deserialize)]
-		struct PointerScrollArgs {
-			axis_continuous: Vector2<f32>,
-			axis_discrete: Option<Vector2<f32>>,
-		}
-		let args: PointerScrollArgs = deserialize(data)?;
-		if let ItemType::Panel(panel_item) = &node.item.get().unwrap().specialization {
-			if let Some(pointer) = panel_item.seat_data.pointer() {
-				if *panel_item.seat_data.pointer_active.lock() {
-					if let Some(core_surface) = panel_item.core_surface.upgrade() {
-						let flex = flexbuffers::Reader::get_root(data)?;
-						if flex.flexbuffer_type().is_null() {
-							pointer.axis_stop(0, Axis::HorizontalScroll);
-							pointer.axis_stop(0, Axis::VerticalScroll);
-						} else {
-							pointer.axis(0, Axis::HorizontalScroll, args.axis_continuous.x as f64);
-							pointer.axis(0, Axis::VerticalScroll, args.axis_continuous.y as f64);
-							if let Some(axis_discrete_vec) = args.axis_discrete {
-								pointer.axis_discrete(
-									Axis::HorizontalScroll,
-									axis_discrete_vec.x as i32,
-								);
-								pointer.axis_discrete(
-									Axis::VerticalScroll,
-									axis_discrete_vec.y as i32,
-								);
-							}
-						}
-						pointer.frame();
-						core_surface.flush_clients();
-					}
-				}
-			}
-		}
-
-		Ok(())
-	}
-
-	fn keyboard_activate_string_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		data: &[u8],
-	) -> Result<()> {
-		let context = xkb::Context::new(0);
-		let keymap =
-			Keymap::new_from_string(&context, deserialize(data)?, XKB_KEYMAP_FORMAT_TEXT_V1, 0)
-				.ok_or_else(|| anyhow!("Keymap is not valid"))?;
-
-		PanelItem::keyboard_activate_flex(node, &keymap)
-	}
-
-	fn keyboard_activate_names_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		data: &[u8],
-	) -> Result<()> {
-		#[derive(Deserialize)]
-		struct Names<'a> {
-			rules: &'a str,
-			model: &'a str,
-			layout: &'a str,
-			variant: &'a str,
-			options: Option<String>,
-		}
-		let names: Names = deserialize(data)?;
-		let context = xkb::Context::new(0);
-		let keymap = Keymap::new_from_names(
-			&context,
-			names.rules,
-			names.model,
-			names.layout,
-			names.variant,
-			names.options,
-			XKB_KEYMAP_FORMAT_TEXT_V1,
-		)
-		.ok_or_else(|| anyhow!("Keymap is not valid"))?;
-
-		PanelItem::keyboard_activate_flex(node, &keymap)
-	}
-
-	fn keyboard_activate_flex(node: &Node, keymap: &Keymap) -> Result<()> {
-		if let ItemType::Panel(panel_item) = &node.item.get().unwrap().specialization {
-			if let Some(keyboard) = panel_item.seat_data.keyboard() {
-				if let Some(core_surface) = panel_item.core_surface.upgrade() {
-					let mut keyboard_info = panel_item.seat_data.keyboard_info.lock();
-					if keyboard_info.is_none() {
-						keyboard.enter(0, &core_surface.wl_surface(), vec![]);
-						keyboard.repeat_info(0, 0);
-					}
-					keyboard_info.replace(KeyboardInfo::new(keymap));
-					keyboard_info.as_ref().unwrap().keymap.send(keyboard)?;
-				}
-			}
-		}
-
-		Ok(())
-	}
-
-	fn keyboard_deactivate_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		_data: &[u8],
-	) -> Result<()> {
-		if let ItemType::Panel(panel_item) = &node.item.get().unwrap().specialization {
-			if let Some(keyboard) = panel_item.seat_data.keyboard() {
-				if let Some(core_surface) = panel_item.core_surface.upgrade() {
-					let mut keyboard_info = panel_item.seat_data.keyboard_info.lock();
-					if keyboard_info.is_some() {
-						keyboard.leave(0, &core_surface.wl_surface());
-						*keyboard_info = None;
-					}
-				}
-			}
-		}
-
-		Ok(())
-	}
-
-	fn keyboard_key_state_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		data: &[u8],
-	) -> Result<()> {
-		if let ItemType::Panel(panel_item) = &node.item.get().unwrap().specialization {
-			if let Some(keyboard) = panel_item.seat_data.keyboard() {
-				let mut keyboard_info = panel_item.seat_data.keyboard_info.lock();
-				if let Some(keyboard_info) = &mut *keyboard_info {
-					let (key, state): (u32, u32) = deserialize(data)?;
-					keyboard_info.process(key, state, keyboard)?;
-				}
-			}
-		}
-
-		Ok(())
-	}
-
-	fn resize_flex(node: &Node, _calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
-		if let ItemType::Panel(panel_item) = &node.item.get().unwrap().specialization {
-			if let Some(core_surface) = panel_item.core_surface.upgrade() {
-				let size: Vector2<u32> = deserialize(data)?;
-
-				let toplevel_surface = core_surface
-					.wayland_state()
-					.lock()
-					.xdg_shell_state
-					.toplevel_surfaces(|surfaces| {
-						surfaces
-							.iter()
-							.find(|surf| surf.wl_surface().clone() == core_surface.wl_surface())
-							.cloned()
-					});
-
-				if let Some(toplevel_surface) = toplevel_surface {
-					let mut size_set = false;
-					toplevel_surface.with_pending_state(|state| {
-						state.size = Some(Size::default());
-						state.size.as_mut().unwrap().w = size.x as i32;
-						state.size.as_mut().unwrap().h = size.y as i32;
-						size_set = true;
-					});
-					if size_set {
-						toplevel_surface.send_configure();
-					}
-				}
-			}
-		}
-		Ok(())
-	}
-}
-impl ItemSpecialization for PanelItem {
-	fn serialize_start_data(&self, id: &str) -> Vec<u8> {
-		// Panel size
-		let panel_size = self
-			.core_surface
-			.upgrade()
-			.unwrap()
-			.with_data(|data| data.size);
-
-		let cursor_lock = (*self.seat_data.cursor.lock()).clone();
-		let cursor_size = cursor_lock
-			.clone()
-			.and_then(|cursor| cursor.lock().core_surface.upgrade())
-			.and_then(|surf| surf.with_data(|data| data.size));
-		let cursor_hotspot = cursor_lock.map(|cursor| cursor.lock().hotspot);
-
-		serialize((id, (panel_size, cursor_size.zip(cursor_hotspot)))).unwrap()
-	}
-}
-
-pub fn register_panel_item_ui_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	_data: &[u8],
-) -> Result<()> {
-	register_item_ui_flex(calling_client, &ITEM_TYPE_INFO_PANEL)
-}

src/wayland/seat.rs

@@ -1,284 +1,307 @@
-use super::{state::WaylandState, surface::CoreSurface, GLOBAL_DESTROY_QUEUE};
-use crate::nodes::items::Item;
-use anyhow::Result;
-use mint::Vector2;
-use nanoid::nanoid;
-use once_cell::sync::OnceCell;
-use parking_lot::Mutex;
-use smithay::{
-	input::keyboard::{KeymapFile, ModifiersState},
-	reexports::wayland_server::{
-		backend::{ClientId, GlobalId},
-		delegate_dispatch, delegate_global_dispatch,
-		protocol::{
-			wl_keyboard::{self, KeyState, WlKeyboard},
-			wl_pointer::{self, WlPointer},
-			wl_seat::{self, Capability, WlSeat, EVT_NAME_SINCE},
-			wl_touch::{self, WlTouch},
-		},
-		Client, DataInit, Dispatch, DisplayHandle, GlobalDispatch, New, Resource,
+use super::{state::WaylandState, surface::CoreSurface, utils::WlSurfaceExt};
+use crate::{
+	core::task,
+	nodes::{
+		data::KEYMAPS,
+		items::panel::{Backend, Geometry, PanelItem},
 	},
+};
+use mint::Vector2;
+use parking_lot::Mutex;
+use rustc_hash::FxHashMap;
+use slotmap::KeyData;
+use smithay::{
+	backend::input::{AxisRelativeDirection, ButtonState, KeyState},
+	delegate_seat,
+	input::{
+		keyboard::{FilterResult, LedState},
+		pointer::{AxisFrame, ButtonEvent, CursorImageStatus, MotionEvent},
+		touch::{self, DownEvent, UpEvent},
+		Seat, SeatHandler,
+	},
+	reexports::wayland_server::{protocol::wl_surface::WlSurface, Resource, Weak as WlWeak},
+	utils::SERIAL_COUNTER,
 	wayland::compositor,
 };
-use std::sync::Arc;
-use std::{ops::Deref, sync::Weak};
-use xkbcommon::xkb::{self, Keymap};
+use std::sync::{Arc, Weak};
+use tokio::sync::watch;
 
-pub struct Cursor {
-	pub core_surface: Weak<CoreSurface>,
-	pub hotspot: Vector2<i32>,
+impl SeatHandler for WaylandState {
+	type PointerFocus = WlSurface;
+	type KeyboardFocus = WlSurface;
+	type TouchFocus = WlSurface;
+
+	fn seat_state(&mut self) -> &mut smithay::input::SeatState<Self> {
+		&mut self.seat_state
+	}
+	fn focus_changed(&mut self, _seat: &Seat<Self>, _focused: Option<&Self::KeyboardFocus>) {}
+	fn cursor_image(&mut self, _seat: &Seat<Self>, image: CursorImageStatus) {
+		self.seat.cursor_info_tx.send_modify(|c| match image {
+			CursorImageStatus::Hidden => c.surface = None,
+			CursorImageStatus::Surface(surface) => {
+				CoreSurface::add_to(&surface);
+				compositor::with_states(&surface, |data| {
+					if let Some(core_surface) = data.data_map.get::<Arc<CoreSurface>>() {
+						core_surface.set_material_offset(1);
+					}
+				});
+				c.surface = Some(surface.downgrade())
+			}
+			_ => (),
+		});
+	}
+	fn led_state_changed(&mut self, _seat: &Seat<Self>, _led_state: LedState) {}
+}
+delegate_seat!(WaylandState);
+
+pub fn handle_cursor<B: Backend>(
+	panel_item: &Arc<PanelItem<B>>,
+	mut cursor: watch::Receiver<CursorInfo>,
+) {
+	let panel_item_weak = Arc::downgrade(panel_item);
+	let _ = task::new(|| "cursor handler", async move {
+		while cursor.changed().await.is_ok() {
+			let Some(panel_item) = panel_item_weak.upgrade() else {
+				continue;
+			};
+			let cursor_info = cursor.borrow();
+			panel_item.set_cursor(cursor_info.cursor_data());
+		}
+	});
+}
+pub struct CursorInfo {
+	pub surface: Option<WlWeak<WlSurface>>,
+	pub hotspot_x: i32,
+	pub hotspot_y: i32,
+}
+impl CursorInfo {
+	pub fn cursor_data(&self) -> Option<Geometry> {
+		let cursor_size = self.surface.as_ref()?.upgrade().ok()?.get_size()?;
+		Some(Geometry {
+			origin: [self.hotspot_x, self.hotspot_y].into(),
+			size: cursor_size,
+		})
+	}
 }
 
-pub struct KeyboardInfo {
-	pub keymap: KeymapFile,
-	pub state: xkb::State,
-	pub mods: ModifiersState,
+pub struct SeatWrapper {
+	wayland_state: Weak<Mutex<WaylandState>>,
+	cursor_info_tx: watch::Sender<CursorInfo>,
+	pub cursor_info_rx: watch::Receiver<CursorInfo>,
+	seat: Seat<WaylandState>,
+	touches: Mutex<FxHashMap<u32, WlWeak<WlSurface>>>,
 }
-impl KeyboardInfo {
-	pub fn new(keymap: &Keymap) -> Self {
-		KeyboardInfo {
-			state: xkb::State::new(keymap),
-			keymap: KeymapFile::new(keymap, None),
-			mods: ModifiersState::default(),
+impl SeatWrapper {
+	pub fn new(wayland_state: Weak<Mutex<WaylandState>>, seat: Seat<WaylandState>) -> Self {
+		let (cursor_info_tx, cursor_info_rx) = watch::channel(CursorInfo {
+			surface: None,
+			hotspot_x: 0,
+			hotspot_y: 0,
+		});
+		SeatWrapper {
+			wayland_state,
+			cursor_info_tx,
+			cursor_info_rx,
+			seat,
+			touches: Mutex::new(FxHashMap::default()),
 		}
 	}
-	pub fn process(&mut self, key: u32, state: u32, keyboard: &WlKeyboard) -> Result<()> {
-		let wl_key_state = match state {
-			0 => KeyState::Released,
-			1 => KeyState::Pressed,
-			_ => anyhow::bail!("Invalid key state!"),
+	pub fn unfocus(&self, surface: &WlSurface, state: &mut WaylandState) {
+		let pointer = self.seat.get_pointer().unwrap();
+		if pointer.current_focus() == Some(surface.clone()) {
+			pointer.motion(
+				state,
+				None,
+				&MotionEvent {
+					location: (0.0, 0.0).into(),
+					serial: SERIAL_COUNTER.next_serial(),
+					time: 0,
+				},
+			)
+		}
+		let keyboard = self.seat.get_keyboard().unwrap();
+		if keyboard.current_focus() == Some(surface.clone()) {
+			keyboard.set_focus(state, None, SERIAL_COUNTER.next_serial());
+		}
+		for (id, touch_surface) in self.touches.lock().iter() {
+			if touch_surface.id() == surface.id() {
+				self.touch_up(*id);
+			}
+		}
+	}
+
+	pub fn pointer_motion(&self, surface: WlSurface, position: Vector2<f32>) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
 		};
-		let xkb_key_state = match state {
-			0 => xkb::KeyDirection::Up,
-			1 => xkb::KeyDirection::Down,
-			_ => anyhow::bail!("Invalid key state!"),
+		let mut state = state.lock();
+		let Some(pointer) = self.seat.get_pointer() else {
+			return;
 		};
-		let state_components = self.state.update_key(key + 8, xkb_key_state);
-		if state_components != 0 {
-			self.mods.update_with(&self.state);
-			keyboard.modifiers(
-				0,
-				self.mods.serialized.depressed,
-				self.mods.serialized.latched,
-				self.mods.serialized.locked,
+		pointer.motion(
+			&mut state,
+			Some((surface, (0.0, 0.0).into())),
+			&MotionEvent {
+				location: (position.x as f64, position.y as f64).into(),
+				serial: SERIAL_COUNTER.next_serial(),
+				time: 0,
+			},
+		);
+		pointer.frame(&mut state);
+	}
+	pub fn pointer_button(&self, button: u32, pressed: bool) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let mut state = state.lock();
+		let Some(pointer) = self.seat.get_pointer() else {
+			return;
+		};
+		pointer.button(
+			&mut state,
+			&ButtonEvent {
+				button,
+				state: if pressed {
+					ButtonState::Pressed
+				} else {
+					ButtonState::Released
+				},
+				serial: SERIAL_COUNTER.next_serial(),
+				time: 0,
+			},
+		);
+		pointer.frame(&mut state);
+	}
+	pub fn pointer_scroll(
+		&self,
+		scroll_distance: Option<Vector2<f32>>,
+		scroll_steps: Option<Vector2<f32>>,
+	) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let mut state = state.lock();
+		let Some(pointer) = self.seat.get_pointer() else {
+			return;
+		};
+		pointer.axis(
+			&mut state,
+			AxisFrame {
+				source: None,
+				relative_direction: (
+					AxisRelativeDirection::Identical,
+					AxisRelativeDirection::Identical,
+				),
+				time: 0,
+				axis: scroll_distance
+					.map(|d| (d.x as f64, d.y as f64))
+					.unwrap_or((0.0, 0.0)),
+				v120: scroll_steps.map(|d| ((d.x * 120.0) as i32, (d.y * 120.0) as i32)),
+				stop: (false, false),
+			},
+		);
+		pointer.frame(&mut state);
+	}
+
+	pub fn keyboard_keys(&self, surface: WlSurface, keymap_id: u64, keys: Vec<i32>) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let Some(keyboard) = self.seat.get_keyboard() else {
+			return;
+		};
+		let keymaps = KEYMAPS.lock();
+		let Some(keymap) = keymaps.get(KeyData::from_ffi(keymap_id).into()).cloned() else {
+			return;
+		};
+
+		keyboard.set_focus(
+			&mut state.lock(),
+			Some(surface),
+			SERIAL_COUNTER.next_serial(),
+		);
+		if keyboard
+			.set_keymap_from_string(&mut state.lock(), keymap)
+			.is_err()
+		{
+			return;
+		}
+		for key in keys {
+			keyboard.input(
+				&mut state.lock(),
+				key.unsigned_abs(),
+				if key > 0 {
+					KeyState::Pressed
+				} else {
+					KeyState::Released
+				},
+				SERIAL_COUNTER.next_serial(),
 				0,
+				|_, _, _| FilterResult::Forward::<()>,
 			);
 		}
-		keyboard.key(0, 0, key, wl_key_state);
-		Ok(())
-	}
-}
-unsafe impl Send for KeyboardInfo {}
-
-pub struct SeatDelegate;
-
-#[derive(Clone)]
-pub struct SeatData(Arc<SeatDataInner>);
-impl SeatData {
-	pub fn new(dh: &DisplayHandle, client: ClientId) -> Self {
-		let seat_data = SeatData(Arc::new(SeatDataInner {
-			client,
-			global_id: OnceCell::new(),
-			panel_item: OnceCell::new(),
-			cursor: Mutex::new(None),
-			cursor_changed: Mutex::new(false),
-			pointer: OnceCell::new(),
-			pointer_active: Mutex::new(false),
-			keyboard: OnceCell::new(),
-			keyboard_info: Mutex::new(None),
-			touch: OnceCell::new(),
-		}));
-
-		seat_data
-			.global_id
-			.set(dh.create_global::<WaylandState, _, _>(7, seat_data.clone()))
-			.unwrap();
-
-		seat_data
-	}
-}
-impl Deref for SeatData {
-	type Target = SeatDataInner;
-
-	fn deref(&self) -> &Self::Target {
-		&self.0
-	}
-}
-
-pub struct SeatDataInner {
-	client: ClientId,
-	pub global_id: OnceCell<GlobalId>,
-	pub panel_item: OnceCell<Weak<Item>>,
-	pub cursor: Mutex<Option<Arc<Mutex<Cursor>>>>,
-	pub cursor_changed: Mutex<bool>,
-	pointer: OnceCell<WlPointer>,
-	pub pointer_active: Mutex<bool>,
-	keyboard: OnceCell<WlKeyboard>,
-	pub keyboard_info: Mutex<Option<KeyboardInfo>>,
-	touch: OnceCell<WlTouch>,
-}
-impl SeatDataInner {
-	pub fn pointer(&self) -> Option<&WlPointer> {
-		self.pointer.get()
-	}
-	pub fn keyboard(&self) -> Option<&WlKeyboard> {
-		self.keyboard.get()
-	}
-	#[allow(dead_code)]
-	pub fn touch(&self) -> Option<&WlTouch> {
-		self.touch.get()
-	}
-}
-impl Drop for SeatDataInner {
-	fn drop(&mut self) {
-		let id = self.global_id.take().unwrap();
-		tokio::spawn(async move { GLOBAL_DESTROY_QUEUE.get().unwrap().send(id).await });
-	}
-}
-
-impl GlobalDispatch<WlSeat, SeatData, WaylandState> for SeatDelegate {
-	fn bind(
-		_state: &mut WaylandState,
-		_handle: &DisplayHandle,
-		_client: &Client,
-		resource: New<WlSeat>,
-		data: &SeatData,
-		data_init: &mut DataInit<'_, WaylandState>,
-	) {
-		let resource = data_init.init(resource, data.clone());
-
-		if resource.version() >= EVT_NAME_SINCE {
-			resource.name(nanoid!());
-		}
-
-		resource.capabilities(Capability::Pointer | Capability::Keyboard);
 	}
 
-	fn can_view(client: Client, data: &SeatData) -> bool {
-		client.id() == data.0.client
+	pub fn touch_down(&self, surface: WlSurface, id: u32, position: Vector2<f32>) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let Some(touch) = self.seat.get_touch() else {
+			return;
+		};
+		touch.down(
+			&mut state.lock(),
+			Some((surface, (0.0, 0.0).into())),
+			&DownEvent {
+				slot: Some(id).into(),
+				location: (position.x as f64, position.y as f64).into(),
+				serial: SERIAL_COUNTER.next_serial(),
+				time: 0,
+			},
+		);
+		touch.frame(&mut state.lock());
 	}
-}
-delegate_global_dispatch!(WaylandState: [WlSeat: SeatData] => SeatDelegate);
-
-impl Dispatch<WlSeat, SeatData, WaylandState> for SeatDelegate {
-	fn request(
-		_state: &mut WaylandState,
-		_client: &Client,
-		_resource: &WlSeat,
-		request: <WlSeat as Resource>::Request,
-		data: &SeatData,
-		_dh: &DisplayHandle,
-		data_init: &mut DataInit<'_, WaylandState>,
-	) {
-		match request {
-			wl_seat::Request::GetPointer { id } => {
-				let _ = data.0.pointer.set(data_init.init(id, data.clone()));
-			}
-			wl_seat::Request::GetKeyboard { id } => {
-				let keyboard = data_init.init(id, data.clone());
-				keyboard.repeat_info(0, 0);
-				let _ = data.0.keyboard.set(keyboard);
-			}
-			wl_seat::Request::GetTouch { id } => {
-				let _ = data.0.touch.set(data_init.init(id, data.clone()));
-			}
-			wl_seat::Request::Release => (),
-			_ => unreachable!(),
+	pub fn touch_move(&self, id: u32, position: Vector2<f32>) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let Some(surface) = self.touches.lock().get(&id).and_then(|c| c.upgrade().ok()) else {
+			return;
+		};
+		let Some(touch) = self.seat.get_touch() else {
+			return;
+		};
+		touch.motion(
+			&mut state.lock(),
+			Some((surface, (0.0, 0.0).into())),
+			&touch::MotionEvent {
+				slot: Some(id).into(),
+				location: (position.x as f64, position.y as f64).into(),
+				time: 0,
+			},
+		);
+		touch.frame(&mut state.lock());
+	}
+	pub fn touch_up(&self, id: u32) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let Some(touch) = self.seat.get_touch() else {
+			return;
+		};
+		touch.up(
+			&mut state.lock(),
+			&UpEvent {
+				slot: Some(id).into(),
+				serial: SERIAL_COUNTER.next_serial(),
+				time: 0,
+			},
+		);
+		touch.frame(&mut state.lock());
+	}
+	pub fn reset_input(&self) {
+		for id in self.touches.lock().keys() {
+			self.touch_up(*id)
 		}
 	}
 }
-delegate_dispatch!(WaylandState: [WlSeat: SeatData] => SeatDelegate);
-
-impl Dispatch<WlPointer, SeatData, WaylandState> for SeatDelegate {
-	fn request(
-		state: &mut WaylandState,
-		_client: &Client,
-		_resource: &WlPointer,
-		request: <WlPointer as Resource>::Request,
-		seat_data: &SeatData,
-		dh: &DisplayHandle,
-		_data_init: &mut DataInit<'_, WaylandState>,
-	) {
-		match request {
-			wl_pointer::Request::SetCursor {
-				serial: _,
-				surface,
-				hotspot_x,
-				hotspot_y,
-			} => {
-				if !*seat_data.pointer_active.lock() {
-					return;
-				}
-				*seat_data.0.cursor_changed.lock() = true;
-				if let Some(surface) = surface.as_ref() {
-					compositor::with_states(surface, |data| {
-						data.data_map.insert_if_missing_threadsafe(|| {
-							CoreSurface::new(
-								&state.weak_ref.upgrade().unwrap(),
-								&state.display,
-								dh.clone(),
-								surface,
-							)
-						});
-						if !data.data_map.insert_if_missing_threadsafe(|| {
-							Arc::new(Mutex::new(Cursor {
-								core_surface: Arc::downgrade(
-									data.data_map.get::<Arc<CoreSurface>>().unwrap(),
-								),
-								hotspot: Vector2::from([hotspot_x, hotspot_y]),
-							}))
-						}) {
-							let mut cursor =
-								data.data_map.get::<Arc<Mutex<Cursor>>>().unwrap().lock();
-							cursor.hotspot = Vector2::from([hotspot_x, hotspot_y]);
-						}
-					})
-				}
-				*seat_data.cursor.lock() = surface.and_then(|surf| {
-					compositor::with_states(&surf, |data| {
-						data.data_map.get::<Arc<Mutex<Cursor>>>().cloned()
-					})
-				});
-			}
-			wl_pointer::Request::Release => (),
-			_ => unreachable!(),
-		}
-	}
-}
-delegate_dispatch!(WaylandState: [WlPointer: SeatData] => SeatDelegate);
-
-impl Dispatch<WlKeyboard, SeatData, WaylandState> for SeatDelegate {
-	fn request(
-		_state: &mut WaylandState,
-		_client: &Client,
-		_resource: &WlKeyboard,
-		request: <WlKeyboard as Resource>::Request,
-		_data: &SeatData,
-		_dh: &DisplayHandle,
-		_data_init: &mut DataInit<'_, WaylandState>,
-	) {
-		match request {
-			wl_keyboard::Request::Release => (),
-			_ => unreachable!(),
-		}
-	}
-}
-delegate_dispatch!(WaylandState: [WlKeyboard: SeatData] => SeatDelegate);
-
-impl Dispatch<WlTouch, SeatData, WaylandState> for SeatDelegate {
-	fn request(
-		_state: &mut WaylandState,
-		_client: &Client,
-		_resource: &WlTouch,
-		request: <WlTouch as Resource>::Request,
-		_data: &SeatData,
-		_dh: &DisplayHandle,
-		_data_init: &mut DataInit<'_, WaylandState>,
-	) {
-		match request {
-			wl_touch::Request::Release => (),
-			_ => unreachable!(),
-		}
-	}
-}
-delegate_dispatch!(WaylandState: [WlTouch: SeatData] => SeatDelegate);

src/wayland/shaders/mod.rs

@@ -1,7 +0,0 @@
-#![allow(dead_code)]
-
-// Basic gamma correction shader
-// pub const PANEL_SHADER_BYTES: &[u8] = include_bytes!("shader_unlit_gamma.sks");
-
-// Simula shader with fancy lanzcos sampling
-pub const PANEL_SHADER_BYTES: &[u8] = include_bytes!("shader_unlit_simula.sks");

src/wayland/state.rs

@@ -1,41 +1,64 @@
-use crate::wayland::seat::SeatData;
+use super::seat::SeatWrapper;
+use crate::wayland::drm::wl_drm::WlDrm;
+use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
-use rustc_hash::FxHashMap;
-use slog::Logger;
 use smithay::{
-	delegate_output, delegate_shm,
-	output::{Output, Scale, Subpixel},
+	backend::{
+		allocator::{dmabuf::Dmabuf, Fourcc},
+		egl::EGLDevice,
+		renderer::gles::GlesRenderer,
+	},
+	delegate_dmabuf, delegate_output, delegate_shm,
+	input::{keyboard::XkbConfig, SeatState},
+	output::{Mode, Output, Scale, Subpixel},
 	reexports::{
-		wayland_protocols_misc::server_decoration::server::org_kde_kwin_server_decoration_manager::Mode,
+		wayland_protocols::xdg::{
+			decoration::zv1::server::zxdg_decoration_manager_v1::ZxdgDecorationManagerV1,
+			shell::server::xdg_toplevel::WmCapabilities,
+		},
+		wayland_protocols_misc::server_decoration::server::org_kde_kwin_server_decoration_manager::Mode as DecorationMode,
 		wayland_server::{
 			backend::{ClientData, ClientId, DisconnectReason},
-			protocol::wl_data_device_manager::WlDataDeviceManager,
-			Display, DisplayHandle,
+			protocol::{
+				wl_buffer::WlBuffer, wl_data_device_manager::WlDataDeviceManager,
+				wl_output::WlOutput,
+			},
+			DisplayHandle,
 		},
 	},
-	utils::Size,
+	utils::{Size, Transform},
 	wayland::{
 		buffer::BufferHandler,
-		compositor::CompositorState,
-		output::OutputManagerState,
+		compositor::{CompositorClientState, CompositorState},
+		dmabuf::{
+			self, DmabufFeedback, DmabufFeedbackBuilder, DmabufGlobal, DmabufHandler, DmabufState,
+		},
+		output::OutputHandler,
 		shell::{
 			kde::decoration::KdeDecorationState,
-			xdg::{decoration::XdgDecorationState, XdgShellState},
+			xdg::{WmCapabilitySet, XdgShellState},
 		},
 		shm::{ShmHandler, ShmState},
-		xdg_activation::XdgActivationState,
 	},
 };
-use std::sync::{Arc, Weak};
+use std::sync::Arc;
+use tokio::sync::mpsc::UnboundedSender;
+use tracing::{info, warn};
 
-pub struct ClientState;
+pub struct ClientState {
+	pub pid: Option<i32>,
+	pub id: OnceCell<ClientId>,
+	pub compositor_state: CompositorClientState,
+	pub seat: Arc<SeatWrapper>,
+}
 impl ClientData for ClientState {
 	fn initialized(&self, client_id: ClientId) {
-		println!("Wayland client {:?} connected", client_id);
+		info!("Wayland client {:?} connected", client_id);
+		let _ = self.id.set(client_id);
 	}
 
 	fn disconnected(&self, client_id: ClientId, reason: DisconnectReason) {
-		println!(
+		info!(
 			"Wayland client {:?} disconnected because {:#?}",
 			client_id, reason
 		);
@@ -43,35 +66,75 @@ impl ClientData for ClientState {
 }
 
 pub struct WaylandState {
-	pub weak_ref: Weak<Mutex<WaylandState>>,
-	pub display: Arc<Mutex<Display<WaylandState>>>,
-	pub display_handle: DisplayHandle,
-
 	pub compositor_state: CompositorState,
-	pub xdg_activation_state: XdgActivationState,
-	pub xdg_decoration_state: XdgDecorationState,
+	// pub xdg_activation_state: XdgActivationState,
 	pub kde_decoration_state: KdeDecorationState,
-	pub xdg_shell_state: XdgShellState,
 	pub shm_state: ShmState,
-	pub output_manager_state: OutputManagerState,
+	dmabuf_state: (DmabufState, DmabufGlobal, Option<DmabufFeedback>),
+	pub drm_formats: Vec<Fourcc>,
+	pub dmabuf_tx: UnboundedSender<(Dmabuf, Option<dmabuf::ImportNotifier>)>,
+	pub seat_state: SeatState<Self>,
+	pub seat: Arc<SeatWrapper>,
+	pub xdg_shell: XdgShellState,
 	pub output: Output,
-	pub seats: FxHashMap<ClientId, SeatData>,
 }
 
 impl WaylandState {
 	pub fn new(
-		log: Logger,
-		display: Arc<Mutex<Display<WaylandState>>>,
 		display_handle: DisplayHandle,
+		renderer: &GlesRenderer,
+		dmabuf_tx: UnboundedSender<(Dmabuf, Option<dmabuf::ImportNotifier>)>,
 	) -> Arc<Mutex<Self>> {
-		let compositor_state = CompositorState::new::<Self, _>(&display_handle, log.clone());
-		let xdg_activation_state = XdgActivationState::new::<Self, _>(&display_handle, log.clone());
-		let xdg_shell_state = XdgShellState::new::<Self, _>(&display_handle, log.clone());
-		let xdg_decoration_state = XdgDecorationState::new::<Self, _>(&display_handle, log.clone());
+		let compositor_state = CompositorState::new::<Self>(&display_handle);
+		// let xdg_activation_state = XdgActivationState::new::<Self, _>(&display_handle);
 		let kde_decoration_state =
-			KdeDecorationState::new::<Self, _>(&display_handle, Mode::Server, log.clone());
-		let shm_state = ShmState::new::<Self, _>(&display_handle, vec![], log.clone());
-		let output_manager_state = OutputManagerState::new_with_xdg_output::<Self>(&display_handle);
+			KdeDecorationState::new::<Self>(&display_handle, DecorationMode::Server);
+		let shm_state = ShmState::new::<Self>(&display_handle, vec![]);
+		let render_node = EGLDevice::device_for_display(renderer.egl_context().display())
+			.and_then(|device| device.try_get_render_node());
+		let dmabuf_formats = renderer
+			.egl_context()
+			.dmabuf_render_formats()
+			.iter()
+			.cloned()
+			.collect::<Vec<_>>();
+		let drm_formats = dmabuf_formats.iter().map(|f| f.code).collect();
+
+		let dmabuf_default_feedback = match render_node {
+			Ok(Some(node)) => DmabufFeedbackBuilder::new(node.dev_id(), dmabuf_formats.clone())
+				.build()
+				.ok(),
+			Ok(None) => {
+				warn!("failed to query render node, dmabuf will use v3");
+				None
+			}
+			Err(err) => {
+				warn!(?err, "failed to egl device for display, dmabuf will use v3");
+				None
+			}
+		};
+		// if we failed to build dmabuf feedback we fall back to dmabuf v3
+		// Note: egl on Mesa requires either v4 or wl_drm (initialized with bind_wl_display)
+		let dmabuf_state = if let Some(default_feedback) = dmabuf_default_feedback {
+			let mut dmabuf_state = DmabufState::new();
+			let dmabuf_global = dmabuf_state.create_global_with_default_feedback::<WaylandState>(
+				&display_handle,
+				&default_feedback,
+			);
+			(dmabuf_state, dmabuf_global, Some(default_feedback))
+		} else {
+			let mut dmabuf_state = DmabufState::new();
+			let dmabuf_global =
+				dmabuf_state.create_global::<WaylandState>(&display_handle, dmabuf_formats.clone());
+			(dmabuf_state, dmabuf_global, None)
+		};
+
+		let mut seat_state = SeatState::new();
+		let mut seat = seat_state.new_wl_seat(&display_handle, "seat0");
+		seat.add_pointer();
+		seat.add_keyboard(XkbConfig::default(), 200, 25).unwrap();
+		seat.add_touch();
+
 		let output = Output::new(
 			"1x".to_owned(),
 			smithay::output::PhysicalProperties {
@@ -80,54 +143,80 @@ impl WaylandState {
 				make: "Virtual XR Display".to_owned(),
 				model: "Your Headset Name Here".to_owned(),
 			},
-			log.clone(),
 		);
-		let _global = output.create_global::<Self>(&display_handle);
-		output.change_current_state(None, None, Some(Scale::Integer(2)), None);
-		display_handle.create_global::<Self, WlDataDeviceManager, _>(3, ());
+		let _output_global = output.create_global::<Self>(&display_handle);
+		let mode = Mode {
+			size: (1024, 1024).into(),
+			refresh: 60000,
+		};
+		output.change_current_state(
+			Some(mode),
+			Some(Transform::Normal),
+			Some(Scale::Integer(2)),
+			None,
+		);
+		output.set_preferred(mode);
 
-		println!("Init Wayland compositor");
+		let mut xdg_shell = XdgShellState::new::<Self>(&display_handle);
+		let mut capabilities = WmCapabilitySet::default();
+		capabilities.set(WmCapabilities::Maximize);
+		capabilities.set(WmCapabilities::Fullscreen);
+		capabilities.unset(WmCapabilities::Minimize);
+		capabilities.unset(WmCapabilities::WindowMenu);
+		xdg_shell.replace_capabilities(capabilities);
+		display_handle.create_global::<Self, WlDataDeviceManager, _>(3, ());
+		display_handle.create_global::<Self, ZxdgDecorationManagerV1, _>(1, ());
+		display_handle.create_global::<Self, WlDrm, _>(2, ());
+
+		info!("Init Wayland compositor");
 
 		Arc::new_cyclic(|weak| {
 			Mutex::new(WaylandState {
-				weak_ref: weak.clone(),
-				display,
-				display_handle,
-
 				compositor_state,
-				xdg_activation_state,
-				xdg_decoration_state,
+				// xdg_activation_state,
 				kde_decoration_state,
-				xdg_shell_state,
 				shm_state,
-				output_manager_state,
+				drm_formats,
+				dmabuf_state,
+				dmabuf_tx,
+				seat_state,
+				seat: Arc::new(SeatWrapper::new(weak.clone(), seat)),
+				xdg_shell,
 				output,
-				seats: FxHashMap::default(),
 			})
 		})
 	}
-
-	pub fn new_client(&mut self, client: ClientId, dh: &DisplayHandle) {
-		let seat_data = SeatData::new(dh, client.clone());
-		self.seats.insert(client, seat_data);
-	}
 }
 impl Drop for WaylandState {
 	fn drop(&mut self) {
-		println!("Cleanly shut down the Wayland compositor");
+		info!("Cleanly shut down the Wayland compositor");
 	}
 }
 impl BufferHandler for WaylandState {
-	fn buffer_destroyed(
-		&mut self,
-		_buffer: &smithay::reexports::wayland_server::protocol::wl_buffer::WlBuffer,
-	) {
-	}
+	fn buffer_destroyed(&mut self, _buffer: &WlBuffer) {}
 }
 impl ShmHandler for WaylandState {
-	fn shm_state(&self) -> &smithay::wayland::shm::ShmState {
+	fn shm_state(&self) -> &ShmState {
 		&self.shm_state
 	}
 }
+impl DmabufHandler for WaylandState {
+	fn dmabuf_state(&mut self) -> &mut DmabufState {
+		&mut self.dmabuf_state.0
+	}
+
+	fn dmabuf_imported(
+		&mut self,
+		_global: &DmabufGlobal,
+		dmabuf: Dmabuf,
+		notifier: dmabuf::ImportNotifier,
+	) {
+		self.dmabuf_tx.send((dmabuf, Some(notifier))).unwrap();
+	}
+}
+impl OutputHandler for WaylandState {
+	fn output_bound(&mut self, _output: Output, _wl_output: WlOutput) {}
+}
+delegate_dmabuf!(WaylandState);
 delegate_shm!(WaylandState);
 delegate_output!(WaylandState);

src/wayland/surface.rs

@@ -1,220 +1,206 @@
-use super::{shaders::PANEL_SHADER_BYTES, state::WaylandState};
+use super::utils::WlSurfaceExt;
 use crate::{
-	core::{destroy_queue, registry::Registry},
-	nodes::drawable::model::Model,
+	core::{delta::Delta, destroy_queue, registry::Registry},
+	nodes::{
+		drawable::{
+			model::{MaterialWrapper, ModelPart},
+			shaders::PANEL_SHADER_BYTES,
+		},
+		items::camera::TexWrapper,
+	},
 };
-use mint::Vector2;
+use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
 use send_wrapper::SendWrapper;
-use slog::Logger;
 use smithay::{
 	backend::renderer::{
-		gles2::{Gles2Renderer, Gles2Texture},
-		utils::{import_surface_tree, on_commit_buffer_handler, RendererSurfaceStateUserData},
-		Texture,
+		gles::{GlesRenderer, GlesTexture},
+		utils::{import_surface_tree, RendererSurfaceStateUserData},
+		Renderer, Texture,
 	},
 	desktop::utils::send_frames_surface_tree,
-	reexports::wayland_server::{
-		backend::ObjectId, protocol::wl_surface::WlSurface, Display, DisplayHandle, Resource,
-	},
-	wayland::compositor::{self, SurfaceData},
+	output::Output,
+	reexports::wayland_server::{self, protocol::wl_surface::WlSurface, Resource},
 };
-use std::sync::{Arc, Weak};
-use stereokit::{
+use std::{ffi::c_void, sync::Arc, time::Duration};
+use stereokit_rust::{
 	material::{Material, Transparency},
 	shader::Shader,
-	texture::{Texture as SKTexture, TextureAddress, TextureFormat, TextureSample, TextureType},
-	StereoKit,
+	tex::{Tex, TexAddress, TexFormat, TexSample, TexType},
+	util::Time,
 };
 
 pub static CORE_SURFACES: Registry<CoreSurface> = Registry::new();
 
 pub struct CoreSurfaceData {
-	wl_tex: Option<SendWrapper<Gles2Texture>>,
-	sk_tex: Option<SendWrapper<SKTexture>>,
-	sk_mat: Option<Arc<SendWrapper<Material>>>,
-	pub size: Vector2<u32>,
-}
-impl CoreSurfaceData {
-	fn new(sk: &StereoKit) -> Self {
-		let sk_tex = SendWrapper::new(
-			SKTexture::create(sk, TextureType::ImageNoMips, TextureFormat::RGBA32).unwrap(),
-		);
-		let sk_mat = {
-			let shader = Shader::from_mem(sk, PANEL_SHADER_BYTES).unwrap();
-			let mat = Material::create(sk, &shader).unwrap();
-			mat.set_parameter("diffuse", &*sk_tex);
-			mat.set_transparency(Transparency::Blend);
-			Arc::new(SendWrapper::new(mat))
-		};
-		CoreSurfaceData {
-			wl_tex: None,
-			sk_tex: Some(sk_tex),
-			sk_mat: Some(sk_mat),
-			size: Vector2::from([0, 0]),
-		}
-	}
-	fn update_tex(&mut self, data: &RendererSurfaceStateUserData, renderer: &Gles2Renderer) {
-		if let Some(surface_size) = data.borrow().surface_size() {
-			self.size = Vector2::from([surface_size.w as u32, surface_size.h as u32]);
-		}
-		self.wl_tex = data
-			.borrow()
-			.texture(renderer)
-			.cloned()
-			.map(SendWrapper::new);
-		if let Some(smithay_tex) = self.wl_tex.as_ref() {
-			let sk_tex = self.sk_tex.as_ref().unwrap();
-			unsafe {
-				sk_tex.set_native(
-					smithay_tex.tex_id() as usize,
-					smithay::backend::renderer::gles2::ffi::RGBA8.into(),
-					TextureType::Image,
-					smithay_tex.width(),
-					smithay_tex.height(),
-					false,
-				);
-				sk_tex.set_sample(TextureSample::Point);
-				sk_tex.set_address_mode(TextureAddress::Clamp);
-			}
-		}
-	}
+	wl_tex: Option<SendWrapper<GlesTexture>>,
 }
 impl Drop for CoreSurfaceData {
 	fn drop(&mut self) {
 		destroy_queue::add(self.wl_tex.take());
-		destroy_queue::add(self.sk_tex.take());
-		destroy_queue::add(self.sk_mat.take());
 	}
 }
 
 pub struct CoreSurface {
-	display: Weak<Mutex<Display<WaylandState>>>,
-	pub state: Weak<Mutex<WaylandState>>,
-	pub dh: DisplayHandle,
-	pub surface_id: ObjectId,
-	pub mapped_data: Mutex<Option<CoreSurfaceData>>,
-	pub pending_material_applications: Mutex<Vec<(Arc<Model>, u32)>>,
+	pub weak_surface: wayland_server::Weak<WlSurface>,
+	mapped_data: Mutex<Option<CoreSurfaceData>>,
+	sk_tex: OnceCell<Mutex<TexWrapper>>,
+	sk_mat: OnceCell<Mutex<MaterialWrapper>>,
+	material_offset: Mutex<Delta<u32>>,
+	pub pending_material_applications: Registry<ModelPart>,
 }
 
 impl CoreSurface {
-	pub fn new(
-		state: &Arc<Mutex<WaylandState>>,
-		display: &Arc<Mutex<Display<WaylandState>>>,
-		dh: DisplayHandle,
-		surface: &WlSurface,
-	) -> Arc<Self> {
-		CORE_SURFACES.add(CoreSurface {
-			display: Arc::downgrade(display),
-			state: Arc::downgrade(state),
-			dh,
-			surface_id: surface.id(),
+	pub fn add_to(surface: &WlSurface) {
+		let core_surface = CORE_SURFACES.add(CoreSurface {
+			weak_surface: surface.downgrade(),
 			mapped_data: Mutex::new(None),
-			pending_material_applications: Mutex::new(Vec::new()),
-		})
+			sk_tex: OnceCell::new(),
+			sk_mat: OnceCell::new(),
+			material_offset: Mutex::new(Delta::new(0)),
+			pending_material_applications: Registry::new(),
+		});
+		surface.insert_data(core_surface);
 	}
 
-	pub fn process<F: FnOnce(&SurfaceData), M: FnOnce(&SurfaceData)>(
-		&self,
-		sk: &StereoKit,
-		renderer: &mut Gles2Renderer,
-		time_ms: u32,
-		log: &Logger,
-		on_mapped: F,
-		if_mapped: M,
-	) {
-		// Let Smithay handle all the buffer maintenance
-		on_commit_buffer_handler(&self.wl_surface());
-		// Import all surface buffers into textures
-		import_surface_tree(renderer, &self.wl_surface(), log).unwrap();
+	pub fn from_wl_surface(surf: &WlSurface) -> Option<Arc<CoreSurface>> {
+		surf.get_data()
+	}
 
-		let mapped = compositor::with_states(&self.wl_surface(), |data| {
-			data.data_map
-				.get::<RendererSurfaceStateUserData>()
-				.map(|surface_states| surface_states.borrow().wl_buffer().is_some())
-				.unwrap_or(false)
+	pub fn process(&self, renderer: &mut GlesRenderer) {
+		let Some(wl_surface) = self.wl_surface() else {
+			return;
+		};
+
+		let sk_tex = self.sk_tex.get_or_init(|| {
+			Mutex::new(TexWrapper(Tex::new(
+				TexType::ImageNomips,
+				TexFormat::RGBA32Linear,
+				nanoid::nanoid!(),
+			)))
 		});
+		self.sk_mat.get_or_init(|| {
+			let shader = Shader::from_memory(PANEL_SHADER_BYTES).unwrap();
+			// let _ = renderer.with_context(|c| unsafe {
+			// 	shader_inject(c, &mut shader, SIMULA_VERT_STR, SIMULA_FRAG_STR)
+			// });
+
+			let mut mat = Material::new(shader, None);
+			mat.diffuse_tex(&sk_tex.lock().0);
+			mat.transparency(Transparency::Blend);
+			Mutex::new(MaterialWrapper(mat))
+		});
+
+		// Import all surface buffers into textures
+		if import_surface_tree(renderer, &wl_surface).is_err() {
+			return;
+		}
+
+		self.update_textures(renderer);
+		self.apply_surface_materials();
+	}
+
+	pub fn update_textures(&self, renderer: &mut GlesRenderer) {
+		let Some(wl_surface) = self.wl_surface() else {
+			return;
+		};
+		let mapped = wl_surface
+			.get_data_raw::<RendererSurfaceStateUserData, _, _>(|surface_states| {
+				surface_states.lock().unwrap().buffer().is_some()
+			})
+			.unwrap_or(false);
 
 		if !mapped {
 			return;
 		}
 
 		let mut mapped_data = self.mapped_data.lock();
-		let just_mapped = mapped_data.is_none();
-		if just_mapped {
-			*mapped_data = Some(CoreSurfaceData::new(sk));
+
+		let Some(smithay_tex) = wl_surface
+			.get_data_raw::<RendererSurfaceStateUserData, _, _>(|surface_states| {
+				surface_states
+					.lock()
+					.unwrap()
+					.texture::<GlesRenderer>(renderer.id())
+					.cloned()
+			})
+			.flatten()
+		else {
+			return;
+		};
+
+		let Some(sk_tex) = self.sk_tex.get() else {
+			return;
+		};
+		let Some(sk_mat) = self.sk_mat.get() else {
+			return;
+		};
+		sk_tex
+			.lock()
+			.0
+			.set_native_surface(
+				smithay_tex.tex_id() as usize as *mut c_void,
+				TexType::ImageNomips,
+				smithay::backend::renderer::gles::ffi::RGBA8.into(),
+				smithay_tex.width() as i32,
+				smithay_tex.height() as i32,
+				1,
+				false,
+			)
+			.sample_mode(TexSample::Point)
+			.address_mode(TexAddress::Clamp);
+
+		if let Some(material_offset) = self.material_offset.lock().delta() {
+			sk_mat.lock().0.queue_offset(*material_offset as i32);
 		}
-		drop(mapped_data);
-		self.with_states(|data| {
-			self.with_data(|mapped_data| {
-				mapped_data.update_tex(
-					data.data_map.get::<RendererSurfaceStateUserData>().unwrap(),
-					renderer,
-				);
-			});
-			self.apply_surface_materials();
 
-			if just_mapped {
-				on_mapped(data);
-			}
-			if_mapped(data);
-		});
-
-		send_frames_surface_tree(&self.wl_surface(), time_ms);
+		let new_mapped_data = CoreSurfaceData {
+			wl_tex: Some(SendWrapper::new(smithay_tex)),
+		};
+		*mapped_data = Some(new_mapped_data);
 	}
 
-	pub fn apply_material(&self, model: Arc<Model>, material_idx: u32) {
-		self.pending_material_applications
-			.lock()
-			.push((model, material_idx));
+	pub fn frame(&self, output: Output) {
+		let Some(wl_surface) = self.wl_surface() else {
+			return;
+		};
+
+		send_frames_surface_tree(
+			&wl_surface,
+			&output,
+			Duration::from_secs_f64(Time::get_total_unscaled()),
+			None,
+			|_, _| Some(output.clone()),
+		);
+	}
+
+	pub fn set_material_offset(&self, material_offset: u32) {
+		*self.material_offset.lock().value_mut() = material_offset;
+	}
+
+	pub fn apply_material(&self, model_part: &Arc<ModelPart>) {
+		self.pending_material_applications.add_raw(model_part)
 	}
 
 	fn apply_surface_materials(&self) {
-		self.with_data(|mapped_data| {
-			let mut pending_material_applications = self.pending_material_applications.lock();
-			for (model, material_idx) in &*pending_material_applications {
-				model
-					.pending_material_replacements
-					.lock()
-					.insert(*material_idx, mapped_data.sk_mat.clone().unwrap());
+		if let Some(sk_mat) = self.sk_mat.get() {
+			let sk_mat = sk_mat.lock();
+			for model_node in self.pending_material_applications.get_valid_contents() {
+				model_node.replace_material_now(&sk_mat.0);
 			}
-			pending_material_applications.clear();
-		});
+			self.pending_material_applications.clear();
+		}
 	}
 
-	pub fn wayland_state(&self) -> Arc<Mutex<WaylandState>> {
-		self.state.upgrade().unwrap()
-	}
-
-	pub fn wl_surface(&self) -> WlSurface {
-		WlSurface::from_id(&self.dh, self.surface_id.clone()).unwrap()
-	}
-
-	pub fn with_states<F, T>(&self, f: F) -> T
-	where
-		F: FnOnce(&SurfaceData) -> T,
-	{
-		compositor::with_states(&self.wl_surface(), f)
-	}
-
-	pub fn with_data<F, T>(&self, f: F) -> Option<T>
-	where
-		F: FnOnce(&mut CoreSurfaceData) -> T,
-	{
-		self.mapped_data.lock().as_mut().map(f)
-	}
-
-	pub fn flush_clients(&self) {
-		self.display
-			.upgrade()
-			.unwrap()
-			.lock()
-			.flush_clients()
-			.unwrap();
+	pub fn wl_surface(&self) -> Option<WlSurface> {
+		self.weak_surface.upgrade().ok()
 	}
 }
 impl Drop for CoreSurface {
 	fn drop(&mut self) {
 		CORE_SURFACES.remove(self);
+
+		destroy_queue::add(self.sk_tex.take());
+		destroy_queue::add(self.sk_mat.take());
 	}
 }

src/wayland/utils.rs

@@ -0,0 +1,121 @@
+use mint::Vector2;
+use parking_lot::Mutex;
+use smithay::{
+	backend::renderer::utils::RendererSurfaceStateUserData,
+	reexports::wayland_server::protocol::wl_surface::WlSurface,
+	wayland::{
+		compositor,
+		shell::xdg::{SurfaceCachedState, XdgToplevelSurfaceData},
+	},
+};
+
+use crate::nodes::items::panel::{ChildInfo, Geometry, ToplevelInfo};
+
+use super::xdg_shell::surface_panel_item;
+pub trait WlSurfaceExt {
+	fn insert_data<T: Send + Sync + 'static>(&self, data: T) -> bool;
+	fn get_data<T: Send + Sync + Clone + 'static>(&self) -> Option<T>;
+	fn get_data_raw<T: Send + Sync + 'static, O, F: FnOnce(&T) -> O>(&self, f: F) -> Option<O>;
+	fn get_current_surface_state(&self) -> SurfaceCachedState;
+	fn get_pending_surface_state(&self) -> SurfaceCachedState;
+	fn get_size(&self) -> Option<Vector2<u32>>;
+	fn get_geometry(&self) -> Option<Geometry>;
+}
+impl WlSurfaceExt for WlSurface {
+	fn insert_data<T: Send + Sync + 'static>(&self, data: T) -> bool {
+		compositor::with_states(self, |d| {
+			d.data_map.insert_if_missing_threadsafe(move || data)
+		})
+	}
+	fn get_data<T: Send + Sync + Clone + 'static>(&self) -> Option<T> {
+		compositor::with_states(self, |d| d.data_map.get::<T>().cloned())
+	}
+	fn get_data_raw<T: Send + Sync + 'static, O, F: FnOnce(&T) -> O>(&self, f: F) -> Option<O> {
+		compositor::with_states(self, |d| Some((f)(d.data_map.get::<T>()?)))
+	}
+	fn get_current_surface_state(&self) -> SurfaceCachedState {
+		compositor::with_states(self, |states| {
+			*states.cached_state.get::<SurfaceCachedState>().current()
+		})
+	}
+	fn get_pending_surface_state(&self) -> SurfaceCachedState {
+		compositor::with_states(self, |states| {
+			*states.cached_state.get::<SurfaceCachedState>().pending()
+		})
+	}
+	fn get_size(&self) -> Option<Vector2<u32>> {
+		self.get_data_raw::<RendererSurfaceStateUserData, _, _>(|surface_states| {
+			surface_states.lock().unwrap().surface_size()
+		})
+		.flatten()
+		.map(|size| Vector2::from([size.w as u32, size.h as u32]))
+	}
+	fn get_geometry(&self) -> Option<Geometry> {
+		self.get_current_surface_state().geometry.map(|r| r.into())
+	}
+}
+
+pub trait ToplevelInfoExt {
+	fn get_toplevel_info(&self) -> Option<ToplevelInfo>;
+	fn with_toplevel_info<O, F: FnOnce(&mut ToplevelInfo) -> O>(&self, f: F) -> Option<O>;
+
+	fn get_parent(&self) -> Option<u64>;
+	fn get_app_id(&self) -> Option<String>;
+	fn get_title(&self) -> Option<String>;
+	fn min_size(&self) -> Option<Vector2<u32>>;
+	fn max_size(&self) -> Option<Vector2<u32>>;
+}
+impl ToplevelInfoExt for WlSurface {
+	fn get_toplevel_info(&self) -> Option<ToplevelInfo> {
+		self.get_data_raw::<Mutex<ToplevelInfo>, _, _>(|c| c.lock().clone())
+	}
+	fn with_toplevel_info<O, F: FnOnce(&mut ToplevelInfo) -> O>(&self, f: F) -> Option<O> {
+		self.get_data_raw::<Mutex<ToplevelInfo>, _, _>(|r| (f)(&mut r.lock()))
+	}
+
+	fn get_parent(&self) -> Option<u64> {
+		self.get_data_raw::<XdgToplevelSurfaceData, _, _>(|d| d.lock().unwrap().parent.clone())
+			.flatten()
+			.and_then(|p| surface_panel_item(&p))
+			.and_then(|p| p.node.upgrade())
+			.map(|p| p.get_id())
+	}
+	fn get_app_id(&self) -> Option<String> {
+		self.get_data_raw::<XdgToplevelSurfaceData, _, _>(|d| d.lock().ok()?.app_id.clone())
+			.flatten()
+	}
+	fn get_title(&self) -> Option<String> {
+		self.get_data_raw::<XdgToplevelSurfaceData, _, _>(|d| d.lock().ok()?.title.clone())
+			.flatten()
+	}
+	fn min_size(&self) -> Option<Vector2<u32>> {
+		let state = self.get_pending_surface_state();
+		let size = state.min_size;
+		if size.w == 0 && size.h == 0 {
+			None
+		} else {
+			Some(Vector2::from([size.w as u32, size.h as u32]))
+		}
+	}
+	fn max_size(&self) -> Option<Vector2<u32>> {
+		let state = self.get_pending_surface_state();
+		let size = state.max_size;
+		if size.w == 0 && size.h == 0 {
+			None
+		} else {
+			Some(Vector2::from([size.w as u32, size.h as u32]))
+		}
+	}
+}
+pub trait ChildInfoExt {
+	fn get_child_info(&self) -> Option<ChildInfo>;
+	fn with_child_info<O, F: FnOnce(&mut ChildInfo) -> O>(&self, f: F) -> Option<O>;
+}
+impl ChildInfoExt for WlSurface {
+	fn get_child_info(&self) -> Option<ChildInfo> {
+		self.get_data_raw::<Mutex<ChildInfo>, _, _>(|c| c.lock().clone())
+	}
+	fn with_child_info<O, F: FnOnce(&mut ChildInfo) -> O>(&self, f: F) -> Option<O> {
+		self.get_data_raw::<Mutex<ChildInfo>, _, _>(|r| (f)(&mut r.lock()))
+	}
+}

src/wayland/wayland-drm.xml

@@ -0,0 +1,189 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="drm">
+
+    <copyright>
+        Copyright © 2008-2011 Kristian Høgsberg
+        Copyright © 2010-2011 Intel Corporation
+
+        Permission to use, copy, modify, distribute, and sell this
+        software and its documentation for any purpose is hereby granted
+        without fee, provided that\n the above copyright notice appear in
+        all copies and that both that copyright notice and this permission
+        notice appear in supporting documentation, and that the name of
+        the copyright holders not be used in advertising or publicity
+        pertaining to distribution of the software without specific,
+        written prior permission. The copyright holders make no
+        representations about the suitability of this software for any
+        purpose. It is provided "as is" without express or implied
+        warranty.
+
+        THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+        SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+        FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+        SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+        WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+        AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+        ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+        THIS SOFTWARE.
+    </copyright>
+
+    <!-- drm support. This object is created by the server and published
+       using the display's global event. -->
+    <interface name="wl_drm" version="2">
+        <enum name="error">
+            <entry name="authenticate_fail" value="0" />
+            <entry name="invalid_format" value="1" />
+            <entry name="invalid_name" value="2" />
+        </enum>
+
+        <enum name="format">
+            <!-- The drm format codes match the #defines in drm_fourcc.h.
+           The formats actually supported by the compositor will be
+           reported by the format event. New codes must not be added,
+           unless directly taken from drm_fourcc.h. -->
+            <entry name="c8" value="0x20203843" />
+            <entry name="rgb332" value="0x38424752" />
+            <entry name="bgr233" value="0x38524742" />
+            <entry name="xrgb4444" value="0x32315258" />
+            <entry name="xbgr4444" value="0x32314258" />
+            <entry name="rgbx4444" value="0x32315852" />
+            <entry name="bgrx4444" value="0x32315842" />
+            <entry name="argb4444" value="0x32315241" />
+            <entry name="abgr4444" value="0x32314241" />
+            <entry name="rgba4444" value="0x32314152" />
+            <entry name="bgra4444" value="0x32314142" />
+            <entry name="xrgb1555" value="0x35315258" />
+            <entry name="xbgr1555" value="0x35314258" />
+            <entry name="rgbx5551" value="0x35315852" />
+            <entry name="bgrx5551" value="0x35315842" />
+            <entry name="argb1555" value="0x35315241" />
+            <entry name="abgr1555" value="0x35314241" />
+            <entry name="rgba5551" value="0x35314152" />
+            <entry name="bgra5551" value="0x35314142" />
+            <entry name="rgb565" value="0x36314752" />
+            <entry name="bgr565" value="0x36314742" />
+            <entry name="rgb888" value="0x34324752" />
+            <entry name="bgr888" value="0x34324742" />
+            <entry name="xrgb8888" value="0x34325258" />
+            <entry name="xbgr8888" value="0x34324258" />
+            <entry name="rgbx8888" value="0x34325852" />
+            <entry name="bgrx8888" value="0x34325842" />
+            <entry name="argb8888" value="0x34325241" />
+            <entry name="abgr8888" value="0x34324241" />
+            <entry name="rgba8888" value="0x34324152" />
+            <entry name="bgra8888" value="0x34324142" />
+            <entry name="xrgb2101010" value="0x30335258" />
+            <entry name="xbgr2101010" value="0x30334258" />
+            <entry name="rgbx1010102" value="0x30335852" />
+            <entry name="bgrx1010102" value="0x30335842" />
+            <entry name="argb2101010" value="0x30335241" />
+            <entry name="abgr2101010" value="0x30334241" />
+            <entry name="rgba1010102" value="0x30334152" />
+            <entry name="bgra1010102" value="0x30334142" />
+            <entry name="yuyv" value="0x56595559" />
+            <entry name="yvyu" value="0x55595659" />
+            <entry name="uyvy" value="0x59565955" />
+            <entry name="vyuy" value="0x59555956" />
+            <entry name="ayuv" value="0x56555941" />
+            <entry name="xyuv8888" value="0x56555958" />
+            <entry name="nv12" value="0x3231564e" />
+            <entry name="nv21" value="0x3132564e" />
+            <entry name="nv16" value="0x3631564e" />
+            <entry name="nv61" value="0x3136564e" />
+            <entry name="yuv410" value="0x39565559" />
+            <entry name="yvu410" value="0x39555659" />
+            <entry name="yuv411" value="0x31315559" />
+            <entry name="yvu411" value="0x31315659" />
+            <entry name="yuv420" value="0x32315559" />
+            <entry name="yvu420" value="0x32315659" />
+            <entry name="yuv422" value="0x36315559" />
+            <entry name="yvu422" value="0x36315659" />
+            <entry name="yuv444" value="0x34325559" />
+            <entry name="yvu444" value="0x34325659" />
+            <entry name="abgr16f" value="0x48344241" />
+            <entry name="xbgr16f" value="0x48344258" />
+        </enum>
+
+        <!-- Call this request with the magic received from drmGetMagic().
+         It will be passed on to the drmAuthMagic() or
+         DRIAuthConnection() call.  This authentication must be
+         completed before create_buffer could be used. -->
+        <request name="authenticate">
+            <arg name="id" type="uint" />
+        </request>
+
+        <!-- Create a wayland buffer for the named DRM buffer.  The DRM
+         surface must have a name using the flink ioctl -->
+        <request name="create_buffer">
+            <arg name="id" type="new_id" interface="wl_buffer" />
+            <arg name="name" type="uint" />
+            <arg name="width" type="int" />
+            <arg name="height" type="int" />
+            <arg name="stride" type="uint" />
+            <arg name="format" type="uint" />
+        </request>
+
+        <!-- Create a wayland buffer for the named DRM buffer.  The DRM
+         surface must have a name using the flink ioctl -->
+        <request name="create_planar_buffer">
+            <arg name="id" type="new_id" interface="wl_buffer" />
+            <arg name="name" type="uint" />
+            <arg name="width" type="int" />
+            <arg name="height" type="int" />
+            <arg name="format" type="uint" />
+            <arg name="offset0" type="int" />
+            <arg name="stride0" type="int" />
+            <arg name="offset1" type="int" />
+            <arg name="stride1" type="int" />
+            <arg name="offset2" type="int" />
+            <arg name="stride2" type="int" />
+        </request>
+
+        <!-- Notification of the path of the drm device which is used by
+         the server.  The client should use this device for creating
+         local buffers.  Only buffers created from this device should
+         be be passed to the server using this drm object's
+         create_buffer request. -->
+        <event name="device">
+            <arg name="name" type="string" />
+        </event>
+
+        <event name="format">
+            <arg name="format" type="uint" />
+        </event>
+
+        <!-- Raised if the authenticate request succeeded -->
+        <event name="authenticated" />
+
+        <enum name="capability" since="2">
+            <description summary="wl_drm capability bitmask">
+                Bitmask of capabilities.
+            </description>
+            <entry name="prime" value="1" summary="wl_drm prime available" />
+        </enum>
+
+        <event name="capabilities">
+            <arg name="value" type="uint" />
+        </event>
+
+        <!-- Version 2 additions -->
+
+        <!-- Create a wayland buffer for the prime fd.  Use for regular and planar
+         buffers.  Pass 0 for offset and stride for unused planes. -->
+        <request name="create_prime_buffer" since="2">
+            <arg name="id" type="new_id" interface="wl_buffer" />
+            <arg name="name" type="fd" />
+            <arg name="width" type="int" />
+            <arg name="height" type="int" />
+            <arg name="format" type="uint" />
+            <arg name="offset0" type="int" />
+            <arg name="stride0" type="int" />
+            <arg name="offset1" type="int" />
+            <arg name="stride1" type="int" />
+            <arg name="offset2" type="int" />
+            <arg name="stride2" type="int" />
+        </request>
+
+    </interface>
+
+</protocol>

src/wayland/xdg_shell.rs

@@ -1,69 +1,540 @@
-use std::sync::Arc;
-
-use crate::nodes::Node;
-
-use super::{panel_item::PanelItem, state::WaylandState, surface::CoreSurface};
+use super::{
+	seat::{handle_cursor, SeatWrapper},
+	state::{ClientState, WaylandState},
+	surface::CoreSurface,
+	utils::*,
+};
+use crate::nodes::{
+	drawable::model::ModelPart,
+	items::panel::{
+		Backend, ChildInfo, Geometry, PanelItem, PanelItemInitData, SurfaceId, ToplevelInfo,
+	},
+};
+use color_eyre::eyre::{eyre, Result};
+use mint::Vector2;
+use parking_lot::Mutex;
+use rand::Rng;
+use rustc_hash::FxHashMap;
 use smithay::{
 	delegate_xdg_shell,
 	reexports::{
 		wayland_protocols::xdg::{
 			decoration::zv1::server::zxdg_toplevel_decoration_v1::Mode,
-			shell::server::xdg_toplevel::State,
+			shell::server::xdg_toplevel::{ResizeEdge, State},
+		},
+		wayland_server::{
+			protocol::{wl_output::WlOutput, wl_seat::WlSeat, wl_surface::WlSurface},
+			Resource,
 		},
-		wayland_server::protocol::{wl_seat::WlSeat, wl_surface::WlSurface},
 	},
-	utils::Serial,
+	utils::{Logical, Rectangle, Serial},
 	wayland::{
-		compositor,
+		compositor::add_post_commit_hook,
 		shell::xdg::{
-			Configure, PopupSurface, PositionerState, ToplevelSurface, XdgShellHandler,
+			PopupSurface, PositionerState, ShellClient, ToplevelSurface, XdgShellHandler,
 			XdgShellState,
 		},
 	},
 };
+use std::sync::{Arc, Weak};
+use tracing::warn;
+
+fn get_unconstrained_popup_geometry(positioner: &PositionerState) -> Geometry {
+	positioner
+		.get_unconstrained_geometry(Rectangle {
+			loc: (-100000, -100000).into(),
+			size: (200000, 200000).into(),
+		})
+		.into()
+}
+
+impl From<Rectangle<i32, Logical>> for Geometry {
+	fn from(value: Rectangle<i32, Logical>) -> Self {
+		Geometry {
+			origin: [value.loc.x, value.loc.y].into(),
+			size: [value.size.w as u32, value.size.h as u32].into(),
+		}
+	}
+}
+
+pub fn surface_panel_item(wl_surface: &WlSurface) -> Option<Arc<PanelItem<XdgBackend>>> {
+	let panel_item = wl_surface
+		.get_data::<Weak<PanelItem<XdgBackend>>>()
+		.as_ref()
+		.and_then(Weak::upgrade);
+	if panel_item.is_none() {
+		warn!("Couldn't get panel item");
+	}
+	panel_item
+}
 
 impl XdgShellHandler for WaylandState {
 	fn xdg_shell_state(&mut self) -> &mut XdgShellState {
-		&mut self.xdg_shell_state
+		&mut self.xdg_shell
 	}
 
-	fn new_toplevel(&mut self, surface: ToplevelSurface) {
-		self.output
-			.enter(&self.display_handle, surface.wl_surface());
-		surface.with_pending_state(|state| {
-			state.states.set(State::Maximized);
-			state.states.set(State::Activated);
-			state.decoration_mode = Some(Mode::ServerSide);
+	fn new_client(&mut self, _client: ShellClient) {}
+	fn client_destroyed(&mut self, _client: ShellClient) {}
+
+	fn new_toplevel(&mut self, toplevel: ToplevelSurface) {
+		toplevel.wl_surface().insert_data(SurfaceId::Toplevel(()));
+		toplevel.with_pending_state(|s| {
+			s.decoration_mode = Some(Mode::ServerSide);
+			s.states.set(State::TiledTop);
+			s.states.set(State::TiledBottom);
+			s.states.set(State::TiledLeft);
+			s.states.set(State::TiledRight);
+			s.states.set(State::Maximized);
+			s.states.unset(State::Fullscreen);
 		});
-		surface.send_configure();
-	}
-	fn ack_configure(&mut self, surface: WlSurface, configure: Configure) {
-		match configure {
-			Configure::Toplevel(config) => {
-				if let Some(size) = config.state.size {
-					compositor::with_states(&surface, |data| {
-						if let Some(panel_node) = data.data_map.get::<Arc<Node>>() {
-							if let Some(core_surface) = data.data_map.get::<Arc<CoreSurface>>() {
-								let panel_item = PanelItem::from_node(panel_node);
-								let has_data = core_surface
-									.with_data(|data| {
-										data.size.x = size.w as u32;
-										data.size.y = size.h as u32;
-									})
-									.is_some();
-								if has_data {
-									panel_item.resize();
-								}
-							}
-						}
-					})
+		toplevel.send_configure();
+
+		let initial_size = toplevel
+			.wl_surface()
+			.get_size()
+			.unwrap_or(Vector2::from([0; 2]));
+
+		let initial_toplevel_info = ToplevelInfo {
+			parent: toplevel.wl_surface().get_parent(),
+			title: toplevel.wl_surface().get_title(),
+			app_id: toplevel.wl_surface().get_app_id(),
+			size: initial_size,
+			min_size: toplevel
+				.wl_surface()
+				.min_size()
+				.map(|s| Vector2::from([s.x as f32, s.y as f32])),
+			max_size: toplevel
+				.wl_surface()
+				.max_size()
+				.map(|s| Vector2::from([s.x as f32, s.y as f32])),
+			logical_rectangle: toplevel.wl_surface().get_geometry().unwrap_or(Geometry {
+				origin: [0; 2].into(),
+				size: initial_size,
+			}),
+		};
+		toplevel
+			.wl_surface()
+			.insert_data(Mutex::new(initial_toplevel_info));
+
+		CoreSurface::add_to(toplevel.wl_surface());
+
+		add_post_commit_hook(
+			toplevel.wl_surface(),
+			|_state: &mut WaylandState, _dh, surf| {
+				let parent = surf.get_parent();
+				let new_size = surf.get_size().unwrap_or(Vector2::from([0; 2]));
+				let min_size = surf
+					.min_size()
+					.map(|s| Vector2::from([s.x as f32, s.y as f32]));
+				let max_size = surf
+					.max_size()
+					.map(|s| Vector2::from([s.x as f32, s.y as f32]));
+				let logical_rectangle = surf.get_geometry().unwrap_or_default();
+
+				let mut size_changed = false;
+				surf.with_toplevel_info(|info| {
+					info.parent = parent;
+					if new_size != info.size {
+						info.size = new_size;
+						size_changed = true;
+					}
+					info.min_size = min_size;
+					info.max_size = max_size;
+					info.logical_rectangle = logical_rectangle;
+				});
+
+				if size_changed {
+					let Some(panel_item) = surface_panel_item(surf) else {
+						return;
+					};
+					if let Some(toplevel_info) = surf.get_toplevel_info() {
+						panel_item.toplevel_size_changed(toplevel_info.size);
+					}
 				}
-			}
-			Configure::Popup(_) => (),
+			},
+		);
+
+		add_post_commit_hook(
+			toplevel.wl_surface(),
+			|state: &mut WaylandState, _dh, surf| {
+				if surface_panel_item(surf).is_some() {
+					return;
+				}
+				let client = surf.client().unwrap();
+				let client_state = client.get_data::<ClientState>().unwrap();
+				let Some(toplevel) = state
+					.xdg_shell
+					.toplevel_surfaces()
+					.iter()
+					.find(|s| s.wl_surface() == surf)
+				else {
+					return;
+				};
+				let (node, panel_item) = PanelItem::create(
+					Box::new(XdgBackend::create(
+						toplevel.clone(),
+						client_state.seat.clone(),
+					)),
+					client_state.pid,
+				);
+				handle_cursor(&panel_item, panel_item.backend.seat.cursor_info_rx.clone());
+				surf.insert_data(Arc::downgrade(&panel_item));
+				surf.insert_data(node);
+			},
+		);
+	}
+	fn toplevel_destroyed(&mut self, toplevel: ToplevelSurface) {
+		let Some(panel_item) = surface_panel_item(toplevel.wl_surface()) else {
+			return;
+		};
+		panel_item.backend.seat.unfocus(toplevel.wl_surface(), self);
+		panel_item.backend.toplevel.lock().take();
+		panel_item.backend.children.lock().clear();
+	}
+	fn app_id_changed(&mut self, toplevel: ToplevelSurface) {
+		let wl_surface = toplevel.wl_surface();
+		let Some(app_id) = wl_surface.get_app_id() else {
+			return;
+		};
+
+		wl_surface.with_toplevel_info(|info| {
+			info.app_id = Some(app_id.clone());
+		});
+
+		let Some(panel_item) = surface_panel_item(wl_surface) else {
+			return;
+		};
+		panel_item.toplevel_app_id_changed(&app_id)
+	}
+
+	fn title_changed(&mut self, toplevel: ToplevelSurface) {
+		let wl_surface = toplevel.wl_surface();
+		let Some(title) = wl_surface.get_title() else {
+			return;
+		};
+
+		wl_surface.with_toplevel_info(|info| {
+			info.title = Some(title.clone());
+		});
+
+		let Some(panel_item) = surface_panel_item(wl_surface) else {
+			return;
+		};
+		panel_item.toplevel_title_changed(&title)
+	}
+
+	fn new_popup(&mut self, popup: PopupSurface, positioner: PositionerState) {
+		let id = rand::thread_rng().gen_range(0..u64::MAX);
+		popup.wl_surface().insert_data(SurfaceId::Child(id));
+		let Some(parent) = popup.get_parent_surface() else {
+			return;
+		};
+		let _ = popup.send_configure();
+		CoreSurface::add_to(popup.wl_surface());
+
+		popup.wl_surface().insert_data(Mutex::new(ChildInfo {
+			id,
+			parent: parent.get_data::<SurfaceId>().unwrap(),
+			geometry: get_unconstrained_popup_geometry(&positioner),
+			z_order: 1,
+			receives_input: true,
+		}));
+
+		let Some(panel_item) = surface_panel_item(&parent) else {
+			return;
+		};
+		let panel_item_weak = Arc::downgrade(&panel_item);
+		add_post_commit_hook(
+			popup.wl_surface(),
+			move |_: &mut WaylandState, _dh, surf| {
+				if surface_panel_item(surf).is_some() {
+					return;
+				}
+				surf.insert_data(panel_item_weak.clone());
+				let Some(panel) = surface_panel_item(surf) else {
+					return;
+				};
+				panel.backend.new_child(surf);
+			},
+		);
+	}
+	fn reposition_request(
+		&mut self,
+		popup: PopupSurface,
+		positioner: PositionerState,
+		_token: u32,
+	) {
+		let Some(panel_item) = surface_panel_item(popup.wl_surface()) else {
+			return;
+		};
+
+		popup.wl_surface().with_child_info(|ci| {
+			ci.geometry = get_unconstrained_popup_geometry(&positioner);
+		});
+
+		panel_item.backend.reposition_child(popup.wl_surface());
+	}
+	fn popup_destroyed(&mut self, popup: PopupSurface) {
+		let Some(panel_item) = surface_panel_item(popup.wl_surface()) else {
+			return;
+		};
+		panel_item.backend.seat.unfocus(popup.wl_surface(), self);
+		panel_item.backend.drop_child(popup.wl_surface());
+	}
+
+	fn grab(&mut self, _popup: PopupSurface, _seat: WlSeat, _serial: Serial) {}
+
+	fn move_request(&mut self, toplevel: ToplevelSurface, _seat: WlSeat, _serial: Serial) {
+		let Some(panel_item) = surface_panel_item(toplevel.wl_surface()) else {
+			return;
+		};
+		panel_item.toplevel_move_request();
+	}
+	fn resize_request(
+		&mut self,
+		toplevel: ToplevelSurface,
+		_seat: WlSeat,
+		_serial: Serial,
+		edges: ResizeEdge,
+	) {
+		let Some(panel_item) = surface_panel_item(toplevel.wl_surface()) else {
+			return;
+		};
+		let (up, down, left, right) = match edges {
+			ResizeEdge::None => (false, false, false, false),
+			ResizeEdge::Top => (true, false, false, false),
+			ResizeEdge::Bottom => (false, true, false, false),
+			ResizeEdge::Left => (false, false, true, false),
+			ResizeEdge::TopLeft => (true, false, true, false),
+			ResizeEdge::BottomLeft => (false, true, true, false),
+			ResizeEdge::Right => (false, false, false, true),
+			ResizeEdge::TopRight => (true, false, false, true),
+			ResizeEdge::BottomRight => (false, true, false, true),
+			_ => (false, false, false, false),
+		};
+		panel_item.toplevel_resize_request(up, down, left, right);
+	}
+
+	fn maximize_request(&mut self, toplevel: ToplevelSurface) {
+		toplevel.with_pending_state(|s| {
+			s.states.set(State::Maximized);
+			s.states.unset(State::Fullscreen);
+		});
+		toplevel.send_configure();
+
+		let Some(panel_item) = surface_panel_item(toplevel.wl_surface()) else {
+			return;
+		};
+		panel_item.toplevel_fullscreen_active(false);
+	}
+	fn fullscreen_request(&mut self, toplevel: ToplevelSurface, _output: Option<WlOutput>) {
+		toplevel.with_pending_state(|s| {
+			s.states.set(State::Fullscreen);
+			s.states.unset(State::Maximized);
+		});
+		toplevel.send_configure();
+
+		let Some(panel_item) = surface_panel_item(toplevel.wl_surface()) else {
+			return;
+		};
+		panel_item.toplevel_fullscreen_active(true);
+	}
+}
+delegate_xdg_shell!(WaylandState);
+
+pub struct XdgBackend {
+	toplevel: Mutex<Option<ToplevelSurface>>,
+	pub children: Mutex<FxHashMap<u64, WlSurface>>,
+	seat: Arc<SeatWrapper>,
+}
+impl XdgBackend {
+	pub fn create(toplevel: ToplevelSurface, seat: Arc<SeatWrapper>) -> Self {
+		XdgBackend {
+			toplevel: Mutex::new(Some(toplevel)),
+			children: Mutex::new(FxHashMap::default()),
+			seat,
+		}
+	}
+	fn wl_surface_from_id(&self, id: &SurfaceId) -> Option<WlSurface> {
+		match id {
+			SurfaceId::Toplevel(_) => Some(self.toplevel.lock().clone()?.wl_surface().clone()),
+			SurfaceId::Child(id) => self.children.lock().get(id).cloned(),
+		}
+	}
+	fn panel_item(&self) -> Option<Arc<PanelItem<XdgBackend>>> {
+		surface_panel_item(self.toplevel.lock().clone()?.wl_surface())
+	}
+
+	pub fn new_child(&self, surface: &WlSurface) {
+		let Some(panel_item) = self.panel_item() else {
+			return;
+		};
+		let Some(child_info) = surface.get_child_info() else {
+			return;
+		};
+
+		self.children.lock().insert(child_info.id, surface.clone());
+		panel_item.create_child(child_info.id, &child_info);
+	}
+	pub fn reposition_child(&self, surface: &WlSurface) {
+		let Some(panel_item) = self.panel_item() else {
+			return;
+		};
+		let Some(child_info) = surface.get_child_info() else {
+			return;
+		};
+
+		panel_item.reposition_child(child_info.id, &child_info.geometry);
+	}
+	pub fn drop_child(&self, surface: &WlSurface) {
+		let Some(panel_item) = self.panel_item() else {
+			return;
+		};
+		let Some(child_info) = surface.get_child_info() else {
+			return;
+		};
+		panel_item.destroy_child(child_info.id);
+		self.children.lock().remove(&child_info.id);
+	}
+}
+impl Backend for XdgBackend {
+	fn start_data(&self) -> Result<PanelItemInitData> {
+		let cursor = self
+			.seat
+			.cursor_info_rx
+			.borrow()
+			.surface
+			.clone()
+			.and_then(|s| s.upgrade().ok())
+			.as_ref()
+			.and_then(|c| c.get_size())
+			.map(|size| Geometry {
+				origin: [0; 2].into(),
+				size,
+			});
+
+		let toplevel_info = self
+			.toplevel
+			.lock()
+			.as_ref()
+			.and_then(|toplevel| toplevel.wl_surface().get_toplevel_info())
+			.ok_or(eyre!("Internal: no toplevel or ToplevelInfo"))?;
+
+		let children = self
+			.children
+			.lock()
+			.values()
+			.filter_map(|v| v.get_child_info())
+			.collect();
+
+		Ok(PanelItemInitData {
+			cursor,
+			toplevel: toplevel_info,
+			children,
+			pointer_grab: None,
+			keyboard_grab: None,
+		})
+	}
+	fn apply_cursor_material(&self, model_part: &Arc<ModelPart>) {
+		let Some(surface) = self
+			.seat
+			.cursor_info_rx
+			.borrow()
+			.surface
+			.clone()
+			.and_then(|s| s.upgrade().ok())
+		else {
+			return;
+		};
+
+		let Some(core_surface) = CoreSurface::from_wl_surface(&surface) else {
+			return;
+		};
+		core_surface.apply_material(model_part);
+	}
+	fn apply_surface_material(&self, surface: SurfaceId, model_part: &Arc<ModelPart>) {
+		let Some(surface) = self.wl_surface_from_id(&surface) else {
+			return;
+		};
+		let Some(core_surface) = CoreSurface::from_wl_surface(&surface) else {
+			return;
+		};
+		core_surface.apply_material(model_part);
+	}
+
+	fn close_toplevel(&self) {
+		if let Some(toplevel) = self.toplevel.lock().clone() {
+			toplevel.send_close();
 		}
 	}
 
-	fn new_popup(&mut self, _surface: PopupSurface, _positioner: PositionerState) {}
-	fn grab(&mut self, _surface: PopupSurface, _seat: WlSeat, _serial: Serial) {}
+	fn auto_size_toplevel(&self) {
+		let Some(toplevel) = self.toplevel.lock().clone() else {
+			return;
+		};
+		toplevel.with_pending_state(|s| s.size = None);
+		toplevel.send_configure();
+	}
+	fn set_toplevel_size(&self, size: Vector2<u32>) {
+		let Some(toplevel) = self.toplevel.lock().clone() else {
+			return;
+		};
+		toplevel.with_pending_state(|s| {
+			s.size = Some((size.x.max(16) as i32, size.y.max(16) as i32).into())
+		});
+		toplevel.send_pending_configure();
+	}
+	fn set_toplevel_focused_visuals(&self, focused: bool) {
+		let Some(toplevel) = self.toplevel.lock().clone() else {
+			return;
+		};
+		toplevel.with_pending_state(|s| {
+			if focused {
+				s.states.set(State::Activated);
+			} else {
+				s.states.unset(State::Activated);
+			}
+		})
+	}
+
+	fn pointer_motion(&self, surface: &SurfaceId, position: Vector2<f32>) {
+		let Some(surface) = self.wl_surface_from_id(surface) else {
+			return;
+		};
+		self.seat.pointer_motion(surface, position)
+	}
+	fn pointer_button(&self, _surface: &SurfaceId, button: u32, pressed: bool) {
+		self.seat.pointer_button(button, pressed)
+	}
+	fn pointer_scroll(
+		&self,
+		_surface: &SurfaceId,
+		scroll_distance: Option<Vector2<f32>>,
+		scroll_steps: Option<Vector2<f32>>,
+	) {
+		self.seat.pointer_scroll(scroll_distance, scroll_steps)
+	}
+
+	fn keyboard_keys(&self, surface: &SurfaceId, keymap_id: u64, keys: Vec<i32>) {
+		let Some(surface) = self.wl_surface_from_id(surface) else {
+			return;
+		};
+		self.seat.keyboard_keys(surface, keymap_id, keys)
+	}
+
+	fn touch_down(&self, surface: &SurfaceId, id: u32, position: Vector2<f32>) {
+		let Some(surface) = self.wl_surface_from_id(surface) else {
+			return;
+		};
+		self.seat.touch_down(surface, id, position)
+	}
+	fn touch_move(&self, id: u32, position: Vector2<f32>) {
+		self.seat.touch_move(id, position)
+	}
+	fn touch_up(&self, id: u32) {
+		self.seat.touch_up(id)
+	}
+	fn reset_input(&self) {
+		self.seat.reset_input()
+	}
 }
-delegate_xdg_shell!(WaylandState);

stardust-xr-server.desktop

@@ -0,0 +1,5 @@
+[Desktop Entry]
+Name=Stardust XR
+Comment=FOSS XR system UI (display server) project
+Exec=stardust-xr-server
+Type=Application