Global macOS hotkey for Wezterm

init.lua

-- Function: Center and focus the main window of an application
function centerAndFocusMainWindow(app)
	local mainWindow = app:mainWindow()
	if mainWindow then
		mainWindow:centerOnScreen(nil, true, 0)
		mainWindow:focus()
	end
end

-- Function: Watch for a specific application launch and execute a callback when launched
function watchForAppLaunch(appName, callback)
	local watcher
	watcher = hs.application.watcher.new(function(name, event, app)
		if event == hs.application.watcher.launched and name == appName then
			callback(app)
			if watcher then
				watcher:stop()
			end
		end
	end)
	watcher:start()
end

-- Function: Set up a watcher for an application to listen for window creation and execute a callback
function appNewWindowWatcher(app, callback)
	if not app or not app:isRunning() then
		return
	end

	local watcher = app:newWatcher(function(element, event)
		if event == hs.uielement.watcher.windowCreated then
			-- Execute the provided callback function
			callback(app)
			-- Optionally stop the watcher if you no longer need to listen for new windows
			-- watcher:stop()
		end
	end)

	-- Start watching for window creation events
	watcher:start({ hs.uielement.watcher.windowCreated })
end

-- Main keybinding to toggle WezTerm
hs.hotkey.bind({ "cmd" }, "\\", function()
	app = hs.application.find("WezTerm", true)
	if app then
		if app:isFrontmost() then
			app:hide()
		else
			app:activate()
		end
	else
		hs.application.launchOrFocus("/Applications/WezTerm.app")
	end
end)