static void OnBehaviorChanged(DependencyObject obj, IMediaControlBehavior oldValue, IMediaControlBehavior newValue)
{
if (oldValue != null)
{
var contentControl = obj as ContentControl;
if (contentControl != null)
{
var buttonBase = obj as ButtonBase;
if (buttonBase != null)
{
buttonBase.Command = null;
}
#if !SILVERLIGHT && !WINDOWS80
var appbarButton = buttonBase as AppBarButton;
if (appbarButton != null)
{
appbarButton.Label = "";
appbarButton.Icon = null;
}
else
{
var appbarToggleButton = buttonBase as AppBarToggleButton;
if (appbarToggleButton != null)
{
appbarToggleButton.Label = "";
appbarToggleButton.Icon = null;
}
else
{
contentControl.Content = null;
}
}
#else
contentControl.Content = null;
#endif
}
else
{
var textBlock = obj as TextBlock;
if (textBlock != null)
{
textBlock.Text = null;
}
}
AutomationProperties.SetName(obj, "");
ToolTipService.SetToolTip(obj, null);
}
if (oldValue is IElementAwareMediaBehavior)
{
((IElementAwareMediaBehavior)oldValue).Element = null;
}
if (newValue is IElementAwareMediaBehavior)
{
((IElementAwareMediaBehavior)newValue).Element = obj;
}
if (newValue != null)
{
var contentControl = obj as ContentControl;
if (contentControl != null)
{
var buttonBase = obj as ButtonBase;
if (buttonBase != null)
{
buttonBase.Command = newValue.Command ?? buttonBase.Command;
}
#if !SILVERLIGHT && !WINDOWS80
var appbarButton = buttonBase as AppBarButton;
if (appbarButton != null)
{
appbarButton.SetBinding(AppBarButton.LabelProperty, new Binding()
{
Path = new PropertyPath("Label"), Source = newValue, Converter = newValue.LabelConverter
});
appbarButton.SetBinding(AppBarButton.IconProperty, new Binding()
{
Path = new PropertyPath("Content"), Source = newValue, Converter = newValue.ContentConverter
});
}
else
{
var appbarToggleButton = buttonBase as AppBarToggleButton;
if (appbarToggleButton != null)
{
appbarToggleButton.SetBinding(AppBarToggleButton.LabelProperty, new Binding()
{
Path = new PropertyPath("Label"), Source = newValue, Converter = newValue.LabelConverter
});
appbarToggleButton.SetBinding(AppBarToggleButton.IconProperty, new Binding()
{
Path = new PropertyPath("Content"), Source = newValue, Converter = newValue.ContentConverter
});
}
else
{
contentControl.SetBinding(ContentControl.ContentProperty, new Binding()
{
Path = new PropertyPath("Content"), Source = newValue, Converter = newValue.ContentConverter
});
}
}
#else
contentControl.SetBinding(ContentControl.ContentProperty, new Binding()
{
Path = new PropertyPath("Content"), Source = newValue, Converter = newValue.ContentConverter
});
#endif
}
else
{
var textBlock = obj as TextBlock;
if (textBlock != null)
{
textBlock.SetBinding(TextBlock.TextProperty, new Binding()
{
Path = new PropertyPath("Content"), Source = newValue, Converter = newValue.ContentConverter
});
}
}
BindingOperations.SetBinding(obj, AutomationProperties.NameProperty, new Binding()
{
Path = new PropertyPath("Label"), Source = newValue, Converter = newValue.LabelConverter
});
if (GetIsToolTipEnabled(obj))
{
BindingOperations.SetBinding(obj, ToolTipService.ToolTipProperty, new Binding()
{
Path = new PropertyPath("Label"), Source = newValue, Converter = newValue.LabelConverter
});
}
}
}
/// <summary>
/// Sets the behavior on an object.
/// </summary>
/// <param name="obj">The object to set the behavior on.</param>
/// <param name="value">The behavior to be associated with the object.</param>
public static void SetBehavior(DependencyObject obj, IMediaControlBehavior value)
{
obj.SetValue(BehaviorProperty, value);
}
