feat(wayland): kde decoration support

src/wayland/decoration.rs

@@ -0,0 +1,34 @@
+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,
+	},
+};
+
+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,
+	) {
+	}
+
+	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
+	}
+}
+delegate_kde_decoration!(WaylandState);