//private BitmapFrame getVideoCache(Uri uri)
//{
// VideoDrawing vd = new VideoDrawing();
// vd.
//}
private MediaElement createMediaElement(Uri uri)
{
MediaElement retMediaElement = null;
RoutedEventHandler mediaElementOpened = null;
mediaElementOpened = (o, e) =>
{
retMediaElement.RemoveHandler(MediaElement.MediaOpenedEvent, mediaElementOpened);
MediaInterval = retMediaElement.NaturalDuration.TimeSpan;
};
RoutedEventHandler mediaElementEnded = null;
mediaElementEnded = (o, e) =>
{
Pause();
if (mediaElement != null)
{
mediaElement.Position = TimeSpan.FromSeconds(1);
}
};
retMediaElement = new MediaElement()
{
LoadedBehavior = MediaState.Manual,
ScrubbingEnabled = true,
Source = uri,
Cursor = Cursors.Hand
};
retMediaElement.AddHandler(MediaElement.MediaOpenedEvent, mediaElementOpened);
retMediaElement.AddHandler(MediaElement.MediaEndedEvent, mediaElementEnded);
retMediaElement.MouseDown += new MouseButtonEventHandler((o, e) => { Pause(); });
return(retMediaElement);
}
public void AddRemoveHandler()
{
Delegate eh = new EventHandler((object sender, EventArgs ea) => { });
Delegate keh = new KeyEventHandler((object sender, KeyEventArgs ea) => { });
Delegate meh = new MouseButtonEventHandler((object sender, MouseButtonEventArgs ea) => { });
Delegate weh = new MouseWheelEventHandler((object sender, MouseWheelEventArgs ea) => { });
Delegate teh = new TextCompositionEventHandler((object sender, TextCompositionEventArgs ea) => { });
// OK
RoutedEvent [] events1 = new RoutedEvent [] { UIElement.KeyDownEvent, UIElement.KeyUpEvent, UIElement.MouseLeftButtonDownEvent, UIElement.MouseLeftButtonUpEvent, UIElement.MouseWheelEvent, UIElement.TextInputEvent, UIElement.TextInputStartEvent, UIElement.TextInputUpdateEvent };
Delegate [] handlers1 = new Delegate [] { keh, keh, meh, meh, weh, teh, teh, teh };
// ArgumentNullException
RoutedEvent [] events2 = new RoutedEvent [] { null, UIElement.KeyUpEvent };
Delegate [] handlers2 = new Delegate [] { keh, null };
// ArgumentException
RoutedEvent [] events3 = new RoutedEvent [] { FrameworkElement.LoadedEvent, UIElement.KeyUpEvent, UIElement.MouseLeftButtonUpEvent, UIElement.MouseLeftButtonUpEvent, UIElement.TextInputUpdateEvent, UIElement.MouseWheelEvent };
Delegate [] handlers3 = new Delegate [] { eh, meh, keh, teh, eh, meh };
// NotImplementedException
RoutedEvent [] events4 = new RoutedEvent [] { UIElement.ManipulationCompletedEvent, UIElement.ManipulationDeltaEvent, UIElement.ManipulationStartedEvent };
Delegate [] handlers4 = new Delegate [] { eh, eh, eh };
UIElement ctrl = new MediaElement();
// AddHandler
for (int i = 0; i < events1.Length; i++)
{
ctrl.AddHandler(events1 [i], handlers1 [i], false);
}
for (int i = 0; i < events2.Length; i++)
{
Assert.Throws <ArgumentNullException> (() => ctrl.AddHandler(events2 [i], handlers2 [i], false));
}
for (int i = 0; i < events3.Length; i++)
{
Assert.Throws <ArgumentException> (() => ctrl.AddHandler(events3 [i], handlers3 [i], false));
}
for (int i = 0; i < events4.Length; i++)
{
Assert.Throws <NotImplementedException> (() => ctrl.AddHandler(events4 [i], handlers4 [i], false));
}
// RemoveHandler
for (int i = 0; i < events1.Length; i++)
{
ctrl.RemoveHandler(events1 [i], handlers1 [i]);
}
for (int i = 0; i < events2.Length; i++)
{
Assert.Throws <ArgumentNullException> (() => ctrl.RemoveHandler(events2 [i], handlers2 [i]));
}
for (int i = 0; i < events3.Length; i++)
{
Assert.Throws <ArgumentException> (() => ctrl.RemoveHandler(events3 [i], handlers3 [i]));
}
for (int i = 0; i < events4.Length; i++)
{
Assert.Throws <NotImplementedException> (() => ctrl.RemoveHandler(events4 [i], handlers4 [i]));
}
}
