public override void OnApplyTemplate()
{
if (_button != null)
{
_button.Click -= OnClick;
}
base.OnApplyTemplate();
_root = MoreVisualTreeExtensions.FindFirstChildOfType <Grid>(this);
if (null == _root)
{
throw new NotSupportedException("Must include a Grid for manipulating.");
}
_button = GetTemplateChild("_button") as Button;
if (_button != null)
{
_button.Click += OnClick;
}
TransformAnimator.EnsureAnimator(_root, ref _ta);
OpacityAnimator.EnsureAnimator(_root, ref _oa);
if (_oa != null)
{
_root.Opacity = 0;
_oa.GoTo(1.0, new Duration(TimeSpan.FromSeconds(.5)));
}
}
/// <summary>
/// Ensures and creates if needed the animator for an element. Will also
/// verify that a translate transform is present.
/// </summary>
/// <param name="targetElement">The target element.</param>
/// <param name="animator">The animator reference.</param>
public static void EnsureAnimator(UIElement targetElement, ref OpacityAnimator animator)
{
if (animator == null)
{
animator = new OpacityAnimator(targetElement);
}
if (animator == null)
{
throw new InvalidOperationException("The animation system could not be prepared for the target element.");
}
}
public void ApplyTemplate(DataTemplate template, bool animateIn)
{
if (Presenter != null)
{
Presenter.ContentTemplate = template;
if (animateIn)
{
Presenter.Opacity = 0;
OpacityAnimator oa = null;
OpacityAnimator.EnsureAnimator(Presenter, ref oa);
if (oa != null)
{
oa.GoTo(1.0, new Duration(TimeSpan.FromSeconds(.75)));
}
}
Presenter.Content = Content;
_shown = true;
}
}
/// <summary>
/// Ensures and creates if needed the animator for an element. Will also
/// verify that a translate transform is present.
/// </summary>
/// <param name="targetElement">The target element.</param>
/// <param name="animator">The animator reference.</param>
public static void EnsureAnimator(UIElement targetElement, ref OpacityAnimator animator)
{
if (animator == null)
{
animator = new OpacityAnimator(targetElement);
}
if (animator == null)
{
throw new InvalidOperationException("The animation system could not be prepared for the target element.");
}
}
private static void HandleCompletion(PendingCompletion pendingCompletion)
{
// fadeClear, clearFade, clear, fadeRemoveSiblings are all specific
// side effects that met my needs when building 4th & Mayor. At
// this time I'm keeping these around.
var bitmap = new BitmapImage();
try
{
bitmap.SetSource(pendingCompletion.Stream);
pendingCompletion.Image.Source = bitmap;
var tag = pendingCompletion.Image.Tag as string;
if (tag != null && tag == "clear")
{
var img = pendingCompletion.Image;
ClearParentBackground(img);
}
else if (tag != null && (tag == "fadeClear" || tag == "clearFade"))
{
var img = pendingCompletion.Image;
OpacityAnimator oa = null;
OpacityAnimator.EnsureAnimator(img, ref oa);
if (img != null)
{
img.Opacity = 0;
oa.GoTo(1.0, new Duration(TimeSpan.FromSeconds(1)), () =>
{
ClearParentBackground(img);
oa = null;
});
}
}
else if (tag != null && tag == "fadeRemoveSiblings")
{
// Specialized for badge display.
var img = pendingCompletion.Image;
OpacityAnimator oa = null;
OpacityAnimator.EnsureAnimator(img, ref oa);
if (img != null)
{
img.Opacity = 0;
oa.GoTo(1.0, new Duration(TimeSpan.FromSeconds(1)), () =>
{
ClearNonImageSiblings(img);
oa = null;
});
}
}
}
catch (Exception)
{
// Ignore image decode exceptions (ex: invalid image)
// TODO: Consider what to do here.
//QuietWatson.ReportException(ex);
}
finally
{
// Dispose of response stream
if (pendingCompletion.Stream != null)
{
pendingCompletion.Stream.Dispose();
}
}
}