Method eventLoop

core/renderwindow.go:392–418

eventLoop runs the event processing loop for the RenderWindow -- grabs system events for the window and dispatches them to receiving nodes, and manages other state etc (popups, etc).

()

// events for the window and dispatches them to receiving nodes, and manages
// other state etc (popups, etc).
func (w *renderWindow) eventLoop() {
	defer func() { system.HandleRecover(recover()) }()

	d := &w.SystemWindow.Events().Deque

	for {
		if w.stopEventLoop {
			w.stopEventLoop = false
			break
		}
		e := d.NextEvent()
		if w.stopEventLoop {
			w.stopEventLoop = false
			break
		}
		w.handleEvent(e)
		if w.noEventsChan != nil && len(d.Back) == 0 && len(d.Front) == 0 {
			w.noEventsChan <- struct{}{}
		}
	}
	if DebugSettings.WinEventTrace {
		fmt.Printf("Win: %v out of event loop\n", w.name)
	}
	windowWait.Done()
	// our last act must be self destruction!
	w.mains.deleteAll()
}

// handleEvent processes given events.Event.
// All event processing operates under a RenderContext.Lock