private void HidePivotHeadersControl()
{
_pivotHeadersControl = _pivotHeadersControl ?? VisualTreeExtensions.FindChildOfType <PivotHeadersControl>(Items);
if (_pivotHeadersControl == null)
{
return;
}
_pivotHeadersControl.RenderTransform = new TranslateTransform();
_pivotHeadersControl.CacheMode = new BitmapCache();
Items.IsLocked = true;
var storyboard = new Storyboard {
BeginTime = TimeSpan.FromSeconds(0.2)
};
var transformAnimaion2 = new DoubleAnimation {
Duration = TimeSpan.FromSeconds(0.2), From = 0.0, To = -72.0, EasingFunction = new ExponentialEase {
EasingMode = EasingMode.EaseIn, Exponent = 6.0
}
};
Storyboard.SetTarget(transformAnimaion2, _pivotHeadersControl);
Storyboard.SetTargetProperty(transformAnimaion2, new PropertyPath("(UIElement.RenderTransform).(TranslateTransform.Y)"));
storyboard.Children.Add(transformAnimaion2);
var opacityAnimaion2 = new DoubleAnimation {
Duration = TimeSpan.FromSeconds(0.2), From = 1.0, To = 0.0
};
Storyboard.SetTarget(opacityAnimaion2, _pivotHeadersControl);
Storyboard.SetTargetProperty(opacityAnimaion2, new PropertyPath("Opacity"));
storyboard.Children.Add(opacityAnimaion2);
var opacityAnimaion = new DoubleAnimation {
Duration = TimeSpan.FromSeconds(0.2), From = 0.0, To = 1.0
};
Storyboard.SetTarget(opacityAnimaion, SelectionCaption);
Storyboard.SetTargetProperty(opacityAnimaion, new PropertyPath("Opacity"));
storyboard.Children.Add(opacityAnimaion);
Execute.BeginOnUIThread(storyboard.Begin);
}
private void ShowPivotHeadersControl()
{
_pivotHeadersControl = _pivotHeadersControl ?? VisualTreeExtensions.FindChildOfType <PivotHeadersControl>(Items);
if (_pivotHeadersControl == null)
{
return;
}
var storyboard = new Storyboard();
var transformAnimaion2 = new DoubleAnimation {
From = -72.0, To = 0.0, Duration = TimeSpan.FromSeconds(0.2), EasingFunction = new ExponentialEase {
EasingMode = EasingMode.EaseOut, Exponent = 6.0
}
};
Storyboard.SetTarget(transformAnimaion2, _pivotHeadersControl);
Storyboard.SetTargetProperty(transformAnimaion2, new PropertyPath("(UIElement.RenderTransform).(TranslateTransform.Y)"));
storyboard.Children.Add(transformAnimaion2);
var opacityAnimaion2 = new DoubleAnimation {
From = 0.0, To = 1.0, Duration = TimeSpan.FromSeconds(0.2)
};
Storyboard.SetTarget(opacityAnimaion2, _pivotHeadersControl);
Storyboard.SetTargetProperty(opacityAnimaion2, new PropertyPath("Opacity"));
storyboard.Children.Add(opacityAnimaion2);
var opacityAnimaion = new DoubleAnimation {
From = 1.0, To = 0.0, Duration = TimeSpan.FromSeconds(0.2)
};
Storyboard.SetTarget(opacityAnimaion, SelectionCaption);
Storyboard.SetTargetProperty(opacityAnimaion, new PropertyPath("Opacity"));
storyboard.Children.Add(opacityAnimaion);
storyboard.Completed += (o, e) =>
{
Items.IsLocked = false;
};
Execute.BeginOnUIThread(storyboard.Begin);
}
private void FadeOutHeaders()
{
if (_header == null)
{
_header = FindHeader(this);
}
CreateAnimationInformation();
foreach (HeaderAnimationInfo anim in _animInfo)
{
anim.opacityAnimator.GoTo(
0.0,
_animTime
);
anim.transformAnimator.GoTo(
_animOffset + anim.originalX,
_animTime
);
}
}
private void FadeOutHeaders()
{
if (_header == null)
{
_header = FindHeader(this);
}
CreateAnimationInformation();
foreach (HeaderAnimationInfo anim in _animInfo)
{
// headerItem should not be hittestable when it is faded out.
anim.headerItem.IsHitTestVisible = false;
anim.opacityAnimator.GoTo(
0.0,
_animTime
);
anim.transformAnimator.GoTo(
_animOffset + anim.originalX,
_animTime
);
}
}
private void FadeOutHeaders()
{
if (_header == null)
{
_header = FindHeader(this);
}
CreateAnimationInformation();
foreach (HeaderAnimationInfo anim in _animInfo)
{
// headerItem should not be hittestable when it is faded out.
anim.headerItem.IsHitTestVisible = false;
anim.opacityAnimator.GoTo(
0.0,
_animTime
);
anim.transformAnimator.GoTo(
_animOffset + anim.originalX,
_animTime
);
}
}
private void FadeOutHeaders()
{
if (_header == null)
{
_header = FindHeader(this);
}
CreateAnimationInformation();
foreach (HeaderAnimationInfo anim in _animInfo)
{
anim.opacityAnimator.GoTo(
0.0,
_animTime
);
anim.transformAnimator.GoTo(
_animOffset + anim.originalX,
_animTime
);
}
}
/// <summary>
/// Returns the set of weak references to the items
/// that must be animated.
/// </summary>
/// <returns>
/// A set of weak references to items sorted by their feathering index.
/// </returns>
private static IList <WeakReference> GetTargetsToAnimate()
{
List <WeakReference> references;
List <WeakReference> targets = new List <WeakReference>();
PhoneApplicationPage page = null;
PhoneApplicationFrame frame = Application.Current.RootVisual as PhoneApplicationFrame;
if (frame != null)
{
page = frame.Content as PhoneApplicationPage;
}
if (page == null)
{
return(null);
}
if (!_pagesToReferences.TryGetValue(page, out references))
{
return(null);
}
foreach (WeakReference r in references)
{
FrameworkElement target = r.Target as FrameworkElement;
// If target is null, skip.
if (target == null)
{
continue;
}
// If target is not on the screen, skip.
if (!IsOnScreen(target))
{
continue;
}
ListBox listBox = r.Target as ListBox;
LongListSelector longListSelector = r.Target as LongListSelector;
Pivot pivot = r.Target as Pivot;
if (listBox != null)
{
// If the target is a ListBox, feather its items individually.
ItemsControlExtensions.GetItemsInViewPort(listBox, targets);
}
else if (longListSelector != null)
{
#if WP7
// If the target is a LongListSelector, feather its items individually.
ListBox child = TemplatedVisualTreeExtensions.GetFirstLogicalChildByType <ListBox>(longListSelector, false);
if (child != null)
{
ItemsControlExtensions.GetItemsInViewPort(child, targets);
}
#else
LongListSelectorExtensions.GetItemsInViewPort(longListSelector, targets);
#endif
}
else if (pivot != null)
{
// If the target is a Pivot, feather the title and the headers individually.
ContentPresenter title = TemplatedVisualTreeExtensions.GetFirstLogicalChildByType <ContentPresenter>(pivot, false);
if (title != null)
{
targets.Add(new WeakReference(title));
}
PivotHeadersControl headers = TemplatedVisualTreeExtensions.GetFirstLogicalChildByType <PivotHeadersControl>(pivot, false);
if (headers != null)
{
targets.Add(new WeakReference(headers));
}
}
else
{
// Else, feather the target as a whole.
targets.Add(r);
}
}
return(targets);
}
