public void Attach(TopLevel topLevel)
{
var resources = new List<IDisposable>();
var initialClientSize = topLevel.PlatformImpl.ClientSize;
var queueManager = ((IRenderRoot)topLevel).RenderQueueManager;
if (queueManager == null)
return;
var viewport = PlatformManager.CreateRenderTarget(topLevel.PlatformImpl);
resources.Add(viewport);
//resources.Add(queueManager.RenderNeeded.Subscribe(_
// =>
// Dispatcher.UIThread.InvokeAsync(() => topLevel.PlatformImpl.Invalidate(new Rect(topLevel.ClientSize)))));
Action pendingInvalidation = null;
resources.Add(queueManager.RenderNeeded.Subscribe(_ =>
{
if (pendingInvalidation == null)
{
pendingInvalidation = () =>
{
topLevel.PlatformImpl.Invalidate(new Rect(topLevel.ClientSize));
pendingInvalidation = null;
};
Dispatcher.UIThread.InvokeAsync(pendingInvalidation);
}
}
));
topLevel.PlatformImpl.Paint = rect =>
{
viewport.Render(topLevel);
queueManager.RenderFinished();
};
topLevel.Closed += delegate
{
foreach (var disposable in resources)
disposable.Dispose();
resources.Clear();
};
}
public void SetOwner(TopLevel owner)
{
this.owner = owner;
}
public void SetOwner(TopLevel owner)
{
_owner = owner;
}
private void OnParentChanged(IControl control)
{
Unregister();
_root = (TopLevel) control;
Register();
}
private void OnParentChanged(IControl control)
{
Unregister();
_root = (TopLevel)control;
Register();
}
/// <summary>
/// Called when the control is removed to the visual tree.
/// </summary>
/// <param name="root">THe root of the visual tree.</param>
protected override void OnDetachedFromVisualTree(IRenderRoot root)
{
base.OnDetachedFromVisualTree(root);
this.topLevel = null;
}
/// <summary>
/// Called when the control is added to the visual tree.
/// </summary>
/// <param name="root">THe root of the visual tree.</param>
protected override void OnAttachedToVisualTree(IRenderRoot root)
{
base.OnAttachedToVisualTree(root);
this.topLevel = root as TopLevel;
}
