public void When_Null_Target()
{
var mr1 = WeakReferencePool.RentWeakReference(this, null);
WeakReferencePool.ReturnWeakReference(this, mr1);
Assert.AreEqual(1, WeakReferencePool.PooledReferences);
}
public TextBoxView(TextBox owner)
: base(ContextHelper.Current)
{
_ownerRef = WeakReferencePool.RentWeakReference(this, owner);
InitializeBinder();
base.SetSingleLine(true);
//This Background color is set to remove the native android underline on the EditText.
this.SetBackgroundColor(Colors.Transparent);
//Remove default native padding.
this.SetPadding(0, 0, 0, 0);
if (FeatureConfiguration.TextBox.HideCaret)
{
SetCursorVisible(false);
}
_isInitialized = true;
// This ensures the TextBoxView gets resized as Text changes
LayoutParameters = new Android.Views.ViewGroup.LayoutParams(
Android.Views.ViewGroup.LayoutParams.WrapContent,
Android.Views.ViewGroup.LayoutParams.WrapContent
);
}
internal void SetDirectManipulationStateChangeHandler(IDirectManipulationStateChangeHandler?handler)
{
_directManipulationHandlerSubscription?.Dispose();
if (handler is null)
{
return;
}
var weakHandler = WeakReferencePool.RentWeakReference(this, handler);
UpdatesMode = ScrollViewerUpdatesMode.Synchronous;
ViewChanged += OnViewChanged;
_directManipulationHandlerSubscription = Disposable.Create(() =>
{
ViewChanged -= OnViewChanged;
WeakReferencePool.ReturnWeakReference(this, weakHandler);
});
void OnViewChanged(object?sender, ScrollViewerViewChangedEventArgs args)
{
if (args.IsIntermediate)
{
return;
}
if (weakHandler.Target is IDirectManipulationStateChangeHandler h)
{
h.NotifyStateChange(DMManipulationState.DMManipulationCompleted, default, default, default, default, default, default, default, default);
public AttachedDependencyObject(object owner)
{
InitializeBinder();
Owner = owner;
OwnerWeakReference = WeakReferencePool.RentWeakReference(this, owner);
}
public void RegisterName(string name, object scopedElement)
{
if (_names.ContainsKey(name))
{
this.Log().Warn($"The name [{name}] already exists in the current XAML scope");
}
_names[name] = WeakReferencePool.RentWeakReference(this, scopedElement);
}
public void When_Empty()
{
var target = new object();
var mr1 = WeakReferencePool.RentWeakReference(this, target);
Assert.AreEqual(target, mr1.GetUnsafeTargetHandle().Target);
Assert.AreEqual(this, mr1.Owner);
}
public void When_Null_Target_And_Owner()
{
var o1 = new Object();
var mr1 = WeakReferencePool.RentWeakReference(null, null);
WeakReferencePool.ReturnWeakReference(null, mr1);
Assert.AreEqual(0, WeakReferencePool.PooledReferences);
}
private void AttachDismissCommand(IFrameworkElement control)
{
var b = control.FindName("DismissButton") as Button;
if (b != null && b.Command == null)
{
var wr = WeakReferencePool.RentWeakReference(this, this);
b.Command = new DelegateCommand(() => (wr.Target as TimePickerFlyout)?.Dismiss());
}
}
public void When_IWeakReferenceProvider()
{
var target = new MyProvider();
var mr1 = WeakReferencePool.RentWeakReference(this, target);
Assert.AreEqual(target, mr1.GetUnsafeTargetHandle().Target);
Assert.ReferenceEquals(target.WeakReference.GetUnsafeTargetHandle(), mr1.GetUnsafeTargetHandle());
Assert.AreEqual(target, mr1.Owner);
}
public void When_WeakReferenceProvider_Collected()
{
var o1 = new Object();
void test1()
{
var mr1 = WeakReferencePool.RentWeakReference(this, o1);
WeakReferencePool.ReturnWeakReference(this, mr1);
}
test1();
Assert.AreEqual(2, WeakReferencePool.PooledReferences);
void test2()
{
var mr2 = WeakReferencePool.RentWeakReference(this, o1);
WeakReferencePool.ReturnWeakReference(this, mr2);
}
test2();
Assert.AreEqual(2, WeakReferencePool.PooledReferences);
(WeakReference refref, WeakReference ownerRef, WeakReference targetRef) CreateUnreferenced()
{
var o2 = new Object();
var mr2 = WeakReferencePool.RentWeakReference(o1, o2);
return(new WeakReference(mr2), new WeakReference(mr2.GetUnsafeOwnerHandle()), new WeakReference(mr2.GetUnsafeTargetHandle()));
}
var r = CreateUnreferenced();
Assert.IsNotNull(r.ownerRef.Target);
Assert.IsNotNull(r.targetRef.Target);
Assert.IsNotNull(r.refref.Target);
Assert.AreEqual(0, WeakReferencePool.PooledReferences);
GCCondition(5, () => r.refref.Target == null);
Assert.IsNull(r.refref.Target);
GCCondition(5, () => r.ownerRef.Target == null && r.targetRef.Target == null);
Assert.IsNull(r.ownerRef.Target);
Assert.IsNull(r.targetRef.Target);
Assert.AreEqual(0, WeakReferencePool.PooledReferences);
}
public FrameworkTemplate(object?owner, FrameworkTemplateBuilder?factory)
{
InitializeBinder();
_viewFactory = factory;
_ownerRef = WeakReferencePool.RentWeakReference(this, owner);
// Compute the hash for this template once, it will be used a lot
// in the ControlPool's internal dictionary.
_hashCode = (factory?.Target?.GetHashCode() ?? 0) ^ (factory?.Method.GetHashCode() ?? 0);
_xamlScope = ResourceResolver.CurrentScope;
}
public void When_WeakReferenceProvider_Reused()
{
var o1 = new Object();
var mr1 = WeakReferencePool.RentWeakReference(this, o1);
WeakReferencePool.ReturnWeakReference(this, mr1);
var target = new MyProvider();
Assert.AreEqual(target, target.WeakReference.Target);
var mr2 = WeakReferencePool.RentWeakReference(target, o1);
WeakReferencePool.ReturnWeakReference(target, mr2);
Assert.AreEqual(target, target.WeakReference.Target);
}
public void When_Not_Owned_Returned()
{
var target1 = new object();
var target2 = new object();
var mr1 = WeakReferencePool.RentWeakReference(target1, target1);
var wr = mr1.GetUnsafeTargetHandle();
Assert.AreEqual(target1, mr1.GetUnsafeTargetHandle().Target);
Assert.AreEqual(target1, mr1.Owner);
WeakReferencePool.ReturnWeakReference(this, mr1);
var mr2 = WeakReferencePool.RentWeakReference(this, target2);
Assert.AreEqual(target2, mr2.GetUnsafeTargetHandle().Target);
Assert.AreEqual(this, mr2.Owner);
Assert.AreNotSame(wr, mr2.GetUnsafeTargetHandle());
}
private object Wrap(object value)
=> _hasWeakStorage && value != null && value != DependencyProperty.UnsetValue
? WeakReferencePool.RentWeakReference(this, value)
: value;
public void RegisterName(string name, object scopedElement)
{
_names.Add(name, WeakReferencePool.RentWeakReference(this, scopedElement));
}
public WeakResourceInitializer(object owner, ResourceInitializerWithOwner initializer)
{
_owner = WeakReferencePool.RentWeakReference(this, owner);
Initializer = () => initializer(_owner?.Target);
}