neural window manager

2020-05-04 16:45:31 -06:00
parent caa525e31d
commit 8f13a0932e
4 changed files with 377 additions and 212 deletions
--- a/neural/nwm.lua
+++ b/neural/nwm.lua
@@ -0,0 +1,160 @@
+--[[
+	A simplistic window manager for glasses.
+	TODO: support moving windows via mouse drag.
+]]
+
+local Config  = require('opus.config')
+local Glasses = require('neural.glasses')
+local UI      = require('opus.ui')
+local Util    = require('opus.util')
+
+local kernel     = _G.kernel
+local multishell = _ENV.multishell
+local shell      = _ENV.shell
+
+local sandbox = Util.shallowCopy(_ENV)
+
+-- TODO: figure out how to better define scaling
+local scale = .5
+local xs, ys = 6 * scale, 9 * scale
+
+local events = {
+	glasses_click = 'mouse_click',
+	glasses_up = 'mouse_up',
+	glasses_drag = 'mouse_drag',
+	glasses_scroll = 'mouse_scroll',
+}
+
+local hookEvents = { 'glasses_click', 'glasses_up', 'glasses_drag', 'glasses_scroll' }
+
+local function hook(e, eventData)
+	local currentTab = kernel.getFocused()
+	local x = math.floor(eventData[2] / xs)
+	local y = math.floor(eventData[3] / ys)
+	local clickedTab
+
+	for _,tab in ipairs(kernel.routines) do
+		if tab.window.type == 'glasses' then
+			local wx, wy = tab.window.getPosition()
+			local ww, wh = tab.window.getSize()
+
+			if x >= wx and x <= wx + ww and y >= wy and y <= wy + wh then
+				clickedTab = tab
+				x = x - wx
+				y = y - wy
+				break
+			end
+		end
+	end
+
+	if clickedTab then
+		if clickedTab ~= currentTab then
+			clickedTab.window.raise()
+			multishell.setFocus(clickedTab.uid)
+		end
+
+		kernel.event(events[e], {
+			eventData[1], x, y, clickedTab.window.side,
+		})
+
+	end
+	return true
+end
+
+local config = Config.load('nwm', { session = { } })
+
+local function run(args)
+	local window = Glasses.create('glasses', args.x, args.y, args.w, args.h)
+
+	local env = Util.shallowCopy(sandbox)
+	_G.requireInjector(env)
+
+	multishell.openTab({
+		path = args.path,
+		args = args.args,
+		env = env,
+		focused = false,
+		hidden = true,
+		onDestroy = function()
+			Util.removeByValue(config.session, args)
+			Config.update('nwm', config)
+			window.destroy()
+		end,
+		window = window,
+	})
+end
+
+kernel.hook(hookEvents, hook)
+
+UI:setPage(UI.Page {
+	form = UI.Form {
+		values = {
+			x = 1, y = 25, w = 51, h = 19,
+		},
+		path = UI.TextEntry {
+			y = 5,
+			formKey = 'path', formLabel = 'Run', required = true,
+		},
+		args = UI.TextEntry {
+			y = 7,
+			formKey = 'args', formLabel = 'Args',
+		},
+		UI.Text {
+			x = 7, y = 5,
+			textColor = 'yellow',
+			value = ' x       y'
+		},
+		wx = UI.TextEntry {
+			x = 7, y = 6, width = 7, limit = 3,
+			transform = 'number',
+			formKey = 'x', required = true,
+		},
+		wy = UI.TextEntry {
+			x = 15, y = 6, width = 7, limit = 4,
+			transform = 'number',
+			formKey = 'y', required = true,
+		},
+		UI.Text {
+			x = 7, y = 8,
+			textColor = 'yellow',
+			value = ' width   height'
+		},
+		ww = UI.TextEntry {
+			x = 7, y = 9, width = 7, limit = 4,
+			transform = 'number',
+			formKey = 'w', required = true,
+		},
+		wh = UI.TextEntry {
+			x = 15, y = 9, width = 7, limit = 4,
+			transform = 'number',
+			formKey = 'h', required = true,
+		},
+	},
+	notification = UI.Notification { },
+	eventHandler = function(self, event)
+		if event.type == 'form_complete' then
+			local args = Util.shallowCopy(event.values)
+			args.path = shell.resolveProgram(args.path)
+			if not args.path then
+				self.notification:error('Invalid program')
+			else
+				if args.args then
+					args.args = Util.split(args.args, '(.-) ')
+				end
+				table.insert(config.session, args)
+				Config.update('nwm', config)
+				run(args)
+				self.notification:success('Started program')
+			end
+		end
+		return UI.Page.eventHandler(self, event)
+	end,
+})
+
+for _,v in pairs(config.session) do
+	run(v)
+end
+
+UI:start()
+
+kernel.unhook(hookEvents, hook)