init

lib/ewmh.lua

@@ -0,0 +1,61 @@
+-- This source code form is subject to the terms of the MPL-v2 https://mozilla.org/MPL/2.0/ --
+--* Handles Extended Window Manager Hint (https://specifications.freedesktop.org/wm-spec/latest/) stuff that doesn't really fit in Tree
+local Tree
+local X = require("x")
+local EWMH = {}
+
+local pid = tonumber(io.open("/proc/self/stat"):read(8):match("%d+"))
+
+--* init(str name) Sets up properties to the root and support check windows
+function EWMH.init(name)
+	Tree = require("tree")
+	local supported = {
+		X.getAtoms(
+			"_NET_SUPPORTED",              "_NET_SUPPORTING_WM_CHECK",   "_NET_WM_NAME",                "_NET_WM_PID",              "_NET_WM_WINDOW_TYPE",
+			"_NET_WM_WINDOW_TYPE_DESKTOP", "_NET_WM_WINDOW_TYPE_DOCK",   "_NET_WM_WINDOW_TYPE_TOOLBAR", "_NET_WM_WINDOW_TYPE_MENU",
+			"_NET_WM_WINDOW_TYPE_UTILITY", "_NET_WM_WINDOW_TYPE_SPLASH", "_NET_WM_WINDOW_TYPE_DIALOG",  "_NET_WM_WINDOW_TYPE_NORMAL"
+		)
+	}
+	local supportWin = X.createWindow()
+	X.setProperty(supportWin, X.getAtoms("WM_CLASS"),                 X.getAtoms("STRING"),      8,  X.PropModeReplace, { name, name })
+	X.setProperty(supportWin, X.getAtoms("_NET_WM_NAME"),             X.getAtoms("UTF8_STRING"), 8,  X.PropModeReplace, name)
+	X.setProperty(supportWin, X.getAtoms("_NET_SUPPORTING_WM_CHECK"), X.getAtoms("WINDOW"),      32, X.PropModeReplace, supportWin)
+	X.setProperty(supportWin, X.getAtoms("_NET_WM_PID"),              X.getAtoms("CARDINAL"),    32, X.PropModeReplace, pid)
+	X.setProperty(X.root,     X.getAtoms("_NET_SUPPORTING_WM_CHECK"), X.getAtoms("WINDOW"),      32, X.PropModeReplace, supportWin)
+	X.setProperty(X.root,     X.getAtoms("_NET_SUPPORTED"),           X.getAtoms("ATOM"),        32, X.PropModeReplace, supported)
+end
+
+--* bool should shouldManage(table win) Returns a boolean on whether the WM should manage the window
+function EWMH.shouldManage(win)
+	local winTypeAtom = X.getProperty(win.id, X.getAtoms("_NET_WM_WINDOW_TYPE"), 0, X.getAtoms("ATOM"))
+	if not winTypeAtom then return true end
+	local winType = X.getAtomNames(winTypeAtom)
+	if winType == "_NET_WM_WINDOW_TYPE_DOCK" then
+		local attrs = X.getWindowAttributes(win.id)
+		win.winType = "dock"
+		if attrs.y == 0 then
+			-- print(inspect(Tree))
+			local m = Tree.focusedMonitor.margins
+			-- print("HHIHIHII", inspect(m))
+			-- print("m", inspect(attrs))
+			Tree.focusedMonitor.dockMargins = { top = attrs.height, bottom = 0, left = 0, right = 0 }
+			Tree.focusedMonitor:setMargins(Tree.focusedMonitor.margins)
+		end
+		return false
+	elseif winType == "_NET_WM_WINDOW_TYPE_SPLASH" then
+		return false
+	else
+		win.winType = winType or "normal"
+	end
+	return true
+end
+
+--* bool should shouldTile(table win) Returns a boolean on whether the WM should tile the window by default
+function EWMH.shouldTile(win)
+	if win.winType == "_NET_WM_WINDOW_TYPE_DIALOG" then
+		return false
+	end
+	return true
+end
+
+return EWMH