void EnableVisibilityEvent(WindowFrameEvent ev)
{
if (!VisibilityEventsEnabled())
{
// TODO
}
}
void IBackend.EnableEvent(object eventId)
{
if (eventId is WindowFrameEvent)
{
var @event = (WindowFrameEvent)eventId;
switch (@event)
{
case WindowFrameEvent.BoundsChanged:
Window.DidResize += HandleDidResize;
Window.DidMove += HandleDidResize;
break;
case WindowFrameEvent.Hidden:
EnableVisibilityEvent(@event);
Window.WillClose += OnWillClose;
break;
case WindowFrameEvent.Shown:
EnableVisibilityEvent(@event);
break;
case WindowFrameEvent.CloseRequested:
Window.WindowShouldClose = OnShouldClose;
break;
}
eventsEnabled |= @event;
}
}
void DisableVisibilityEvent(WindowFrameEvent ev)
{
if (eventsEnabled.HasFlag(ev))
{
eventsEnabled ^= ev;
if (!VisibilityEventsEnabled())
{
ContentView.RemoveObserver(this, HiddenProperty);
}
}
}
void EnableVisibilityEvent(WindowFrameEvent ev)
{
if (!VisibilityEventsEnabled())
{
ContentView.AddObserver(this, HiddenProperty, NSKeyValueObservingOptions.New, IntPtr.Zero);
}
if (!eventsEnabled.HasFlag(ev))
{
eventsEnabled |= ev;
}
}
void IBackend.DisableEvent(object eventId)
{
if (eventId is WindowFrameEvent)
{
var @event = (WindowFrameEvent)eventId;
eventsEnabled &= ~@event;
switch (@event)
{
case WindowFrameEvent.Hidden:
case WindowFrameEvent.Shown:
if (!VisibilityEventsEnabled())
{
ContentView.RemoveObserver(this, HiddenProperty);
}
break;
}
}
}
void IBackend.EnableEvent(object eventId)
{
if (eventId is WindowFrameEvent)
{
var @event = (WindowFrameEvent)eventId;
switch (@event)
{
case WindowFrameEvent.Hidden:
case WindowFrameEvent.Shown:
if (!VisibilityEventsEnabled())
{
ContentView.AddObserver(this, HiddenProperty, NSKeyValueObservingOptions.New, IntPtr.Zero);
}
break;
}
eventsEnabled |= @event;
}
}
void IBackend.DisableEvent(object eventId)
{
if (eventId is WindowFrameEvent)
{
var @event = (WindowFrameEvent)eventId;
eventsEnabled &= ~@event;
switch (@event)
{
case WindowFrameEvent.BoundsChanged:
NSNotificationCenter.DefaultCenter.RemoveObservers(new [] { didResizeObserver, didMoveObserver });
break;
case WindowFrameEvent.Hidden:
NSNotificationCenter.DefaultCenter.RemoveObserver(willCloseObserver);
DisableVisibilityEvent();
break;
case WindowFrameEvent.Shown:
DisableVisibilityEvent();
break;
}
}
}
void IBackend.DisableEvent(object eventId)
{
if (eventId is WindowFrameEvent)
{
var @event = (WindowFrameEvent)eventId;
eventsEnabled &= ~@event;
switch (@event)
{
case WindowFrameEvent.BoundsChanged:
Window.DidResize -= HandleDidResize;
Window.DidMove -= HandleDidResize;
break;
case WindowFrameEvent.Hidden:
Window.WillClose -= OnWillClose;
DisableVisibilityEvent();
break;
case WindowFrameEvent.Shown:
DisableVisibilityEvent();
break;
}
}
}
void IBackend.EnableEvent(object eventId)
{
if (eventId is WindowFrameEvent)
{
var @event = (WindowFrameEvent)eventId;
switch (@event)
{
case WindowFrameEvent.BoundsChanged:
didResizeObserver = NSNotificationCenter.DefaultCenter.AddObserver(NSWindow.ResizedNotification, HandleDidResize, Window);
didMoveObserver = NSNotificationCenter.DefaultCenter.AddObserver(NSWindow.MovedNotification, HandleDidResize, Window);
break;
case WindowFrameEvent.Hidden:
EnableVisibilityEvent(@event);
willCloseObserver = NSNotificationCenter.DefaultCenter.AddObserver(NSWindow.WillCloseNotification, OnWillClose, Window);
break;
case WindowFrameEvent.Shown:
EnableVisibilityEvent(@event);
break;
case WindowFrameEvent.CloseRequested:
// NOTE: this works only if the wrapped window has no delegate
if (!hasExternalDelegate) // don't replace existing delegates
{
Window.WindowShouldClose = OnShouldClose;
}
else
{
return; // skip eventEnabled update to avoid touching WindowShouldClose when disabling events
}
break;
}
eventsEnabled |= @event;
}
}
void DisableVisibilityEvent (WindowFrameEvent ev)
{
if (eventsEnabled.HasFlag (ev)) {
eventsEnabled ^= ev;
if (!VisibilityEventsEnabled ()) {
ContentView.RemoveObserver (this, HiddenProperty);
}
}
}
void EnableVisibilityEvent (WindowFrameEvent ev)
{
if (!VisibilityEventsEnabled ()) {
ContentView.AddObserver (this, HiddenProperty, NSKeyValueObservingOptions.New, IntPtr.Zero);
}
if (!eventsEnabled.HasFlag (ev)) {
eventsEnabled |= ev;
}
}
