private static AnimationClock Animate(
DependencyObject animatable,
DependencyProperty prop,
AnimationTimeline anim,
int duration,
double?accel,
double?decel,
EventHandler func)
{
anim.AccelerationRatio = accel.GetValueOrDefault(0.0);
anim.DecelerationRatio = decel.GetValueOrDefault(0.0);
anim.Duration = (Duration)TimeSpan.FromMilliseconds((double)duration);
anim.Freeze();
AnimationClock animClock = anim.CreateClock();
animClock.Completed += new EventHandler(animClock_Completed);
if (func != null)
{
animClock.Completed += func;
}
animClock.Controller.Begin();
Animator.ClearAnimation(animatable, prop);
((IAnimatable)animatable).ApplyAnimationClock(prop, animClock);
return(animClock);
void animClock_Completed(object sender, EventArgs e)
{
Animator.ClearAnimation(animatable, prop);
// ISSUE: method pointer
animClock.Completed -= new EventHandler((object)this, __methodptr(\u003CAnimate\u003Eg__animClock_Completed\u007C0));
}
}
private static AnimationClock Animate(
DependencyObject animatable,
DependencyProperty prop,
AnimationTimeline anim,
int duration,
double?acceleration,
double?deceleration,
EventHandler func
)
{
if (acceleration.HasValue)
{
anim.AccelerationRatio = acceleration.GetValueOrDefault(0);
}
if (deceleration.HasValue)
{
anim.DecelerationRatio = deceleration.GetValueOrDefault(0);
}
anim.Duration = TimeSpan.FromMilliseconds(duration);
anim.Freeze();
AnimationClock animClock = anim.CreateClock();
// When animation is complete, remove animation and set the animation's "To"
// value as the new value of the property.
EventHandler eh = null;
eh = delegate(object sender, EventArgs e)
{
animatable.SetValue(prop, animatable.GetValue(prop));
((IAnimatable)animatable).ApplyAnimationClock(prop, null);
animClock.Completed -= eh;
};
animClock.Completed += eh;
// assign completed eventHandler, if defined
if (func != null)
{
animClock.Completed += func;
}
animClock.Controller.Begin();
// goferit
((IAnimatable)animatable).ApplyAnimationClock(prop, animClock);
return(animClock);
}
private void ConstructAnim()
{
NavigationCommands.BrowseBack.InputGestures.Clear();
_outAnimation.Completed += delegate
{
_isInTransition = false;
if (_transitionTarget == BackTarget)
{
GoBack();
}
else
{
Navigate(_transitionTarget);
}
};
_outAnimation.Freeze();
_resizeAnimation.Completed += (s, e) => SizeToContent = SizeToContent.WidthAndHeight;
Navigating += delegate(object sender, NavigatingCancelEventArgs e)
{
// FIX (jods): prevent further navigation when a navigation is already in progress
// (e.g. double-click a button in the main menu). This would break the transitions.
if (_isInTransition)
{
e.Cancel = true;
return;
}
if (_transitionTarget != null)
{
_transitionTarget = null;
return;
}
var page = Content as Page;
if (page == null)
{
return;
}
if (Math.Abs(_clientWidth - 0) < double.Epsilon)
{
_clientWidth = page.ActualWidth;
_bordersHeight = ActualHeight - page.ActualHeight;
}
SizeToContent = SizeToContent.Manual;
e.Cancel = true;
_isInTransition = true;
_transitionTarget = e.NavigationMode == NavigationMode.Back ? BackTarget : e.Content;
page.BeginAnimation(OpacityProperty, _outAnimation, HandoffBehavior.SnapshotAndReplace);
};
Navigated += delegate
{
var page = Content as Page;
if (page == null)
{
return;
}
if (_isFirstLoad)
{
_isFirstLoad = false;
return;
}
page.Opacity = 0;
page.Measure(new Size(_clientWidth, double.PositiveInfinity));
_resizeAnimation.To = page.DesiredSize.Height + _bordersHeight;
BeginAnimation(HeightProperty, _resizeAnimation);
page.BeginAnimation(OpacityProperty, _inAnimation);
};
}
