public static async Task SlideAndFadeInAsync(this FrameworkElement element, AnimationSlideDirection direction, bool firstLoad, float seconds = 0.3f, bool keepMargin = true, int size = 0)
{
var sb = new Storyboard();
switch (direction)
{
// Add slide from left animation
case AnimationSlideDirection.Left:
sb.AddSlideFromLeft(seconds, size == 0 ? element.ActualWidth : size, keepMargin: keepMargin);
break;
// Add slide from right animation
case AnimationSlideDirection.Right:
sb.AddSlideFromRight(seconds, size == 0 ? element.ActualWidth : size, keepMargin: keepMargin);
break;
// Add slide from top animation
case AnimationSlideDirection.Top:
sb.AddSlideFromTop(seconds, size == 0 ? element.ActualHeight : size, keepMargin: keepMargin);
break;
// Add slide from bottom animation
case AnimationSlideDirection.Bottom:
sb.AddSlideFromBottom(seconds, size == 0 ? element.ActualHeight : size, keepMargin: keepMargin);
break;
}
sb.AddFadeIn(seconds);
sb.Begin(element);
if (seconds != 0 || firstLoad)
{
element.Visibility = Visibility.Visible;
}
await Task.Delay((int)(seconds * 1000));
}
/// <summary>
/// Slides an element out
/// </summary>
/// <param name="element">The element to animate</param>
/// <param name="direction">The direction of the slide (this is for the reverse slide out action, so Left would slide out to left)</param>
/// <param name="seconds">The time the animation will take</param>
/// <param name="keepMargin">Whether to keep the element at the same width during animation</param>
/// <param name="size">The animation width/height to animate to. If not specified the elements size is used</param>
/// <returns></returns>
public static async Task SlideAndFadeOutAsync(this FrameworkElement element, AnimationSlideDirection direction, float seconds = 0.3f, bool keepMargin = true, int size = 0)
{
// Create the storyboard
var sb = new Storyboard();
// Slide in the correct direction
switch (direction)
{
// Add slide to left animation
case AnimationSlideDirection.Left:
sb.AddSlideToLeft(seconds, size == 0 ? element.ActualWidth : size, keepMargin: keepMargin);
break;
// Add slide to right animation
case AnimationSlideDirection.Right:
sb.AddSlideToRight(seconds, size == 0 ? element.ActualWidth : size, keepMargin: keepMargin);
break;
// Add slide to top animation
case AnimationSlideDirection.Top:
sb.AddSlideToTop(seconds, size == 0 ? element.ActualHeight : size, keepMargin: keepMargin);
break;
// Add slide to bottom animation
case AnimationSlideDirection.Bottom:
sb.AddSlideToBottom(seconds, size == 0 ? element.ActualHeight : size, keepMargin: keepMargin);
break;
}
// Add fade in animation
sb.AddFadeOut(seconds);
// Start animating
sb.Begin(element);
// Make page visible only if we are animating
if (seconds != 0)
{
element.Visibility = Visibility.Visible;
}
// Wait for it to finish
await Task.Delay((int)(seconds * 1000));
// Make element invisible
element.Visibility = Visibility.Hidden;
}
private static ThicknessAnimation MakeThicknessAnimation(float duration, double offset, float deceleration, AnimationSlideLocation location, AnimationSlideDirection direction, bool keepMargin)
{
var from = new Thickness();
var to = new Thickness();
switch (location)
{
case AnimationSlideLocation.Left:
switch (direction)
{
case AnimationSlideDirection.In:
from = new Thickness(-offset, 0, keepMargin ? offset : 0, 0);
to = new Thickness(0);
break;
case AnimationSlideDirection.Out:
from = new Thickness(0);
to = new Thickness(-offset, 0, keepMargin ? offset : 0, 0);
break;
}
break;
case AnimationSlideLocation.Right:
switch (direction)
{
case AnimationSlideDirection.In:
from = new Thickness(keepMargin ? offset : 0, 0, -offset, 0);
to = new Thickness(0);
break;
case AnimationSlideDirection.Out:
from = new Thickness(0);
to = new Thickness(keepMargin ? offset : 0, 0, -offset, 0);
break;
}
break;
case AnimationSlideLocation.Top:
switch (direction)
{
case AnimationSlideDirection.Down:
from = new Thickness(0, -offset, 0, keepMargin ? offset : 0);
to = new Thickness(0);
break;
case AnimationSlideDirection.Up:
from = new Thickness(0);
to = new Thickness(0, -offset, 0, keepMargin ? offset : 0);
break;
}
break;
case AnimationSlideLocation.Bottom:
switch (direction)
{
case AnimationSlideDirection.Down:
from = new Thickness(0);
to = new Thickness(0, keepMargin ? offset : 0, 0, -offset);
break;
case AnimationSlideDirection.Up:
from = new Thickness(0, keepMargin ? offset : 0, 0, -offset);
to = new Thickness(0);
break;
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(direction), direction, null);
}
return(new ThicknessAnimation
{
Duration = new Duration(TimeSpan.FromSeconds(duration)),
From = from,
To = to,
DecelerationRatio = deceleration
});
}
