public void DefaultValue()
{
var wrapper = new MediaElementWrapper();
var element = new MediaElement();
Assert.AreEqual(element.Volume, wrapper.Volume);
}
public void DecreaseVolumeWithParameter(object increment, double expected)
{
var wrapper = new MediaElementWrapper();
Assert.AreEqual(0.5, wrapper.Volume);
Assert.AreEqual(0.05, wrapper.VolumeIncrement);
MediaCommands.DecreaseVolume.Execute(increment, wrapper);
Assert.AreEqual(expected, wrapper.Volume);
}
public void SetVolumeToZeroSetsIsMutedToTrue()
{
var wrapper = new MediaElementWrapper();
Assert.AreEqual(false, wrapper.IsMuted);
wrapper.Volume = 0;
Assert.AreEqual(true, wrapper.IsMuted);
wrapper.Volume = 0.5;
Assert.AreEqual(false, wrapper.IsMuted);
}
public void IsMutedCoercesWhenVolumeIsZero()
{
var wrapper = new MediaElementWrapper();
Assert.AreEqual(false, wrapper.IsMuted);
wrapper.Volume = 0.0;
Assert.AreEqual(true, wrapper.IsMuted);
wrapper.IsMuted = false;
Assert.AreEqual(true, wrapper.IsMuted);
wrapper.Volume = 0.5;
Assert.AreEqual(false, wrapper.IsMuted);
}
public static ReadOnlyObservableCollection <PropertyItem> GetPropertyItems(MediaElementWrapper wrapper)
{
var dps = typeof(MediaElementWrapper).GetFields(BindingFlags.Static | BindingFlags.Public)
.Where(f => f.FieldType == typeof(DependencyProperty))
.Select(f => f.GetValue(null))
.OfType <DependencyProperty>()
.OrderBy(x => x.Name)
.ToArray();
var props = dps.Select(dp => PropertyItem.GetOrCreate(wrapper, dp))
.ToArray();
return(new ReadOnlyObservableCollection <PropertyItem>(new ObservableCollection <PropertyItem>(props)));
}
public static PropertyItem GetOrCreate(MediaElementWrapper wrapper, DependencyProperty property)
{
PropertyItem item;
if (!Cache.TryGetValue(property, out item))
{
var proxy = DependencyProperty.RegisterAttached(
property.Name + "Proxy",
typeof(object),
typeof(PropertyItem),
new PropertyMetadata(null, OnProxyPropertyChanged));
item = new PropertyItem(wrapper, property, proxy);
Cache[property] = item;
}
return(item);
}
private PropertyItem(MediaElementWrapper wrapper, DependencyProperty property, DependencyProperty proxyProperty)
{
this.wrapper = wrapper;
this.mediaElement = (MediaElement)MediaElementField.GetValue(wrapper);
this.Property = property;
this.mediaElementProperty = typeof(MediaElement).GetProperty(property.Name);
this.proxyProperty = proxyProperty;
if (property.ReadOnly)
{
var binding = new Binding(property.Name)
{
Source = wrapper, Mode = BindingMode.OneWay
};
BindingOperations.SetBinding(wrapper, this.proxyProperty, binding);
}
else
{
var binding = new Binding(property.Name)
{
Source = wrapper, Mode = BindingMode.TwoWay
};
BindingOperations.SetBinding(wrapper, this.proxyProperty, binding);
}
}
public TestPlayerViewModel(MediaElementWrapper wrapper)
{
this.Properties = MediaElementToPropertyListConverter.GetPropertyItems(wrapper);
}
public virtual void Unload()
{
Debug.WriteLine("MediaElementWrapperStreamingMediaPlugin.Unload()");
MediaPlayer.MediaClosed -= MediaPlayer_MediaClosed;
if (null != _mediaElement)
{
_mediaElement.Cleanup();
_mediaElement = null;
}
}
