// I don't want our code to dispose of this class I'd rather just let the natural
// process manage the life cycle so we don't dispose of this too early
void Invalidate(AView androidView)
{
if (androidView.IsAlive())
{
try
{
androidView.ViewTreeObserver.RemoveOnGlobalLayoutListener(this);
}
catch
{
// just in case something along the call path here is disposed of
}
}
try
{
// If the androidView itself becomes disposed of the listener will survive the life of the view
// and it will get moved to the root views tree observer
if (this.IsAlive())
{
_mainActivity?.Window?.DecorView?.RootView?.ViewTreeObserver?.RemoveOnGlobalLayoutListener(this);
}
}
catch
{
// just in case something along the call path here is disposed of
}
_callback = null;
_view = null;
}
internal static void SetAutomationId(AView control, Element element, string value = null)
{
if (!control.IsAlive() || element == null)
{
return;
}
SetAutomationId(control, element.AutomationId, value);
}
partial void DisconnectingHandler(NativeView nativeView)
{
if (nativeView.IsAlive() &&
ViewCompat.GetAccessibilityDelegate(nativeView) is MauiAccessibilityDelegateCompat ad)
{
ad.Handler = null;
ViewCompat.SetAccessibilityDelegate(nativeView, null);
}
}
public static void SetClipToOutline(this AView view, bool value)
{
if (!view.IsAlive())
{
return;
}
view.ClipToOutline = value;
}
public static bool GetClipToOutline(this AView view)
{
if (!view.IsAlive())
{
return(false);
}
return(view.ClipToOutline);
}
public static bool SetElevation(this AView view, float value)
{
if (!view.IsAlive())
{
return(false);
}
view.Elevation = value;
return(true);
}
public static void EnsureId(this AView view)
{
if (!view.IsAlive())
{
return;
}
if (view.Id == AView.NoId)
{
view.Id = global::Android.Views.View.GenerateViewId();
}
}
internal static void SetAutomationId(AView control, string automationId, string value = null)
{
if (!control.IsAlive())
{
return;
}
automationId = value ?? automationId;
if (!string.IsNullOrEmpty(automationId))
{
control.ContentDescription = automationId;
}
}
partial void DisconnectingHandler(PlatformView platformView)
{
if (platformView.IsAlive())
{
platformView.FocusChange -= OnPlatformViewFocusChange;
if (ViewCompat.GetAccessibilityDelegate(platformView) is MauiAccessibilityDelegateCompat ad)
{
ad.Handler = null;
ViewCompat.SetAccessibilityDelegate(platformView, null);
}
}
}
public void OnGlobalLayout()
{
if (_view == null || _callback == null)
{
return;
}
Action invokeMe = null;
AView view = null;
if (!_view.TryGetTarget(out view) || !view.IsAlive())
{
Invalidate(view);
}
else if (_callback.TryGetTarget(out invokeMe))
{
invokeMe();
}
else
{
Invalidate(view);
}
}
private static object GetParent(View view)
{
if (!view.IsAlive())
return null;
if (view.Id == global::Android.Resource.Id.Content)
return view.Context.GetActivity();
object parent = view.Parent;
if (parent != null)
return parent;
var activity = view.Context.GetActivity();
if (!activity.IsAlive())
return null;
var w = activity.Window;
if (!w.IsAlive())
return null;
var d = w.DecorView;
if (d.IsAlive() && ReferenceEquals(view, d.RootView))
return activity;
return null;
}
private static void TrySetActivated(View view, bool value)
{
if (PlatformExtensions.IsApiGreaterThan10 && view.IsAlive())
view.Activated = value;
}
