Initial work on adding remaining animations

samples/CommunityToolkit.Maui.Sample/Pages/Behaviors/AnimationBehaviorPage.xaml

@@ -86,7 +86,62 @@
                     </mct:AnimationBehavior.AnimationType>
                 </mct:AnimationBehavior>
             </Frame.Behaviors>
-            <Label Text="Click this Frame" HorizontalOptions="Center"/>
+            <Label Text="Click to Fade this Frame" HorizontalOptions="Center"/>
+        </Frame>
+
+        <Frame BackgroundColor="LightGreen" Margin="16,0">
+            <Frame.Behaviors>
+                <mct:AnimationBehavior Command="{Binding AnimationCommand}">
+                    <mct:AnimationBehavior.AnimationType>
+                        <mct:FlipHorizontalAnimation />
+                    </mct:AnimationBehavior.AnimationType>
+                </mct:AnimationBehavior>
+            </Frame.Behaviors>
+            <Label Text="Click to Flip this Frame horizontally" HorizontalOptions="Center"/>
+        </Frame>
+
+        <Frame BackgroundColor="LightGreen" Margin="16,0">
+            <Frame.Behaviors>
+                <mct:AnimationBehavior Command="{Binding AnimationCommand}">
+                    <mct:AnimationBehavior.AnimationType>
+                        <mct:FlipVerticalAnimation />
+                    </mct:AnimationBehavior.AnimationType>
+                </mct:AnimationBehavior>
+            </Frame.Behaviors>
+            <Label Text="Click to Flip this Frame vertically" HorizontalOptions="Center"/>
+        </Frame>
+
+        <Frame BackgroundColor="LightGreen" Margin="16,0">
+            <Frame.Behaviors>
+                <mct:AnimationBehavior Command="{Binding AnimationCommand}">
+                    <mct:AnimationBehavior.AnimationType>
+                        <mct:RotateAnimation />
+                    </mct:AnimationBehavior.AnimationType>
+                </mct:AnimationBehavior>
+            </Frame.Behaviors>
+            <Label Text="Click to Rotate this Frame" HorizontalOptions="Center"/>
+        </Frame>
+
+        <Frame BackgroundColor="LightGreen" Margin="16,0">
+            <Frame.Behaviors>
+                <mct:AnimationBehavior Command="{Binding AnimationCommand}">
+                    <mct:AnimationBehavior.AnimationType>
+                        <mct:ScaleAnimation />
+                    </mct:AnimationBehavior.AnimationType>
+                </mct:AnimationBehavior>
+            </Frame.Behaviors>
+            <Label Text="Click to Scale this Frame" HorizontalOptions="Center"/>
+        </Frame>
+
+        <Frame BackgroundColor="LightGreen" Margin="16,0">
+            <Frame.Behaviors>
+                <mct:AnimationBehavior Command="{Binding AnimationCommand}">
+                    <mct:AnimationBehavior.AnimationType>
+                        <mct:ShakeAnimation />
+                    </mct:AnimationBehavior.AnimationType>
+                </mct:AnimationBehavior>
+            </Frame.Behaviors>
+            <Label Text="Click to Shake this Frame" HorizontalOptions="Center"/>
         </Frame>
 
         <Button Text="Animate the frame above" Command="{Binding TriggerAnimationCommand}" />

src/CommunityToolkit.Maui.UnitTests/Animations/BaseAnimationTests.cs

@@ -0,0 +1,33 @@
+using System.Diagnostics;
+using CommunityToolkit.Maui.Animations;
+using CommunityToolkit.Maui.UnitTests.Mocks;
+using FluentAssertions;
+using Xunit;
+
+namespace CommunityToolkit.Maui.UnitTests.Animations;
+
+public abstract class BaseAnimationTests<TAnimation> : BaseTest where TAnimation : BaseAnimation, new()
+{
+	protected virtual TAnimation CreateAnimation() => new();
+
+	[Fact]
+	public async Task LengthShouldDictateFullAnimationLength()
+	{
+		var animation = CreateAnimation();
+
+		Label label = new();
+
+		label.EnableAnimations();
+
+		var stopwatch = new Stopwatch();
+		stopwatch.Start();
+		await animation.Animate(label);
+		stopwatch.Stop();
+
+		double allowance = (animation.Length * 0.1) + 50;
+
+		stopwatch.ElapsedMilliseconds.Should().BeCloseTo(animation.Length, (uint)allowance);
+
+		stopwatch.Reset();
+	}
+}

src/CommunityToolkit.Maui.UnitTests/Animations/FadeAnimationTests.cs

@@ -5,12 +5,12 @@
 
 namespace CommunityToolkit.Maui.UnitTests.Animations;
 
-public class FadeAnimationTests : BaseTest
+public class FadeAnimationTests : BaseAnimationTests<FadeAnimation>
 {
 	[Fact(Timeout = (int)TestDuration.Short)]
 	public async Task AnimateShouldThrowWithNullView()
 	{
-		FadeAnimation animation = new();
+		FadeAnimation animation = CreateAnimation();
 
 #pragma warning disable CS8625 // Cannot convert null literal to non-nullable reference type.
 		await Assert.ThrowsAsync<ArgumentNullException>(() => animation.Animate(null, CancellationToken.None));
@@ -54,7 +54,7 @@ public async Task CancellationTokenExpired()
 	[Fact(Timeout = (int)TestDuration.Medium)]
 	public async Task AnimateShouldReturnToOriginalOpacity()
 	{
-		FadeAnimation animation = new();
+		FadeAnimation animation = CreateAnimation();
 
 		var label = new Label
 		{

src/CommunityToolkit.Maui.UnitTests/Animations/FlipHorizontalAnimationTests.cs

@@ -0,0 +1,7 @@
+using CommunityToolkit.Maui.Animations;
+
+namespace CommunityToolkit.Maui.UnitTests.Animations;
+
+public class FlipHorizontalAnimationTests : BaseAnimationTests<FlipHorizontalAnimation>
+{
+}

src/CommunityToolkit.Maui.UnitTests/Animations/FlipVerticalAnimationTests.cs

@@ -0,0 +1,7 @@
+using CommunityToolkit.Maui.Animations;
+
+namespace CommunityToolkit.Maui.UnitTests.Animations;
+
+public class FlipVerticalAnimationTests : BaseAnimationTests<FlipVerticalAnimation>
+{
+}

src/CommunityToolkit.Maui.UnitTests/Animations/RotateAnimationTests.cs

@@ -0,0 +1,7 @@
+using CommunityToolkit.Maui.Animations;
+
+namespace CommunityToolkit.Maui.UnitTests.Animations;
+
+public class RotateAnimationTests : BaseAnimationTests<RotateAnimation>
+{
+}

src/CommunityToolkit.Maui.UnitTests/Animations/ScaleAnimationTests.cs

@@ -0,0 +1,7 @@
+using CommunityToolkit.Maui.Animations;
+
+namespace CommunityToolkit.Maui.UnitTests.Animations;
+
+public class ScaleAnimationTests : BaseAnimationTests<ScaleAnimation>
+{
+}

src/CommunityToolkit.Maui.UnitTests/Animations/ShakeAnimationTests.cs

@@ -0,0 +1,8 @@
+using CommunityToolkit.Maui.Animations;
+
+namespace CommunityToolkit.Maui.UnitTests.Animations;
+
+public class ShakeAnimationTests : BaseAnimationTests<ShakeAnimation>
+{
+
+}

src/CommunityToolkit.Maui/Animations/BaseAnimation.shared.cs

@@ -1,4 +1,5 @@
 namespace CommunityToolkit.Maui.Animations;
+
 /// <summary>
 /// Abstract class for animation types to inherit.
 /// </summary>

src/CommunityToolkit.Maui/Animations/FadeAnimation.shared.cs

@@ -20,7 +20,7 @@ public class FadeAnimation : BaseAnimation
 	/// <summary>
 	/// Initializes a new instance of <see cref="FadeAnimation"/>.
 	/// </summary>
-	public FadeAnimation() : base(300)
+	public FadeAnimation() : base(600)
 	{
 
 	}
@@ -41,7 +41,9 @@ public override async Task Animate(VisualElement view, CancellationToken token =
 
 		var originalOpacity = view.Opacity;
 
-		await view.FadeTo(Opacity, Length, Easing).WaitAsync(token);
-		await view.FadeTo(originalOpacity, Length, Easing).WaitAsync(token);
+		var duration = Length / 2;
+
+		await view.FadeTo(Opacity, duration, Easing).WaitAsync(token);
+		await view.FadeTo(originalOpacity, duration, Easing).WaitAsync(token);
 	}
 }

src/CommunityToolkit.Maui/Animations/FlipHorizontalAnimation.shared.cs

@@ -0,0 +1,31 @@
+using Microsoft.Maui.Controls;
+
+namespace CommunityToolkit.Maui.Animations;
+
+/// <summary>
+/// Animation that will flip the supplied view horizontally.
+/// </summary>
+public class FlipHorizontalAnimation : RotateAnimation
+{
+	/// <summary>
+	/// Initializes a new instance of <see cref="FlipHorizontalAnimation"/>.
+	/// </summary>
+	public FlipHorizontalAnimation() : base(600)
+	{
+
+	}
+
+	/// <inheritdoc />
+	protected override double DefaultRotation { get; set; } = 90;
+
+	/// <inheritdoc />
+	public override async Task Animate(VisualElement view)
+	{
+		ArgumentNullException.ThrowIfNull(view);
+
+		var duration = Length / 2;
+
+		await view.RotateYTo(Rotation, duration, Easing);
+		await view.RotateYTo(0, duration, Easing);
+	}
+}

src/CommunityToolkit.Maui/Animations/FlipVerticalAnimation.shared.cs

@@ -0,0 +1,29 @@
+namespace CommunityToolkit.Maui.Animations;
+
+/// <summary>
+/// Animation that will flip the supplied view vertically.
+/// </summary>
+public class FlipVerticalAnimation : RotateAnimation
+{
+	/// <summary>
+	/// Initializes a new instance of <see cref="FlipVerticalAnimation"/>.
+	/// </summary>
+	public FlipVerticalAnimation() : base(600)
+	{
+
+	}
+
+	/// <inheritdoc />
+	protected override double DefaultRotation { get; set; } = 90;
+
+	/// <inheritdoc />
+	public override async Task Animate(VisualElement view)
+	{
+		ArgumentNullException.ThrowIfNull(view);
+
+		var duration = Length / 2;
+
+		await view.RotateXTo(Rotation, duration, Easing);
+		await view.RotateXTo(0, duration, Easing);
+	}
+}

src/CommunityToolkit.Maui/Animations/RotateAnimation.shared.cs

@@ -0,0 +1,61 @@
+namespace CommunityToolkit.Maui.Animations;
+
+/// <summary>
+/// Animation that will rotate the supplied view by the specified <see cref="Rotation"/>.
+/// </summary>
+public class RotateAnimation : BaseAnimation
+{
+	/// <summary>
+	/// Backing BindableProperty for the <see cref="Rotation"/> property.
+	/// </summary>
+	public static readonly BindableProperty RotationProperty =
+		BindableProperty.Create(
+			nameof(Rotation),
+			typeof(double),
+			typeof(RotateAnimation),
+			180.0,
+			BindingMode.TwoWay,
+			defaultValueCreator: GetDefaultRotationProperty);
+
+	/// <summary>
+	/// Gets or sets the rotation used by the animation.
+	/// </summary>
+	public double Rotation
+	{
+		get => (double)GetValue(RotationProperty);
+		set => SetValue(RotationProperty, value);
+	}
+
+	static object GetDefaultRotationProperty(BindableObject bindable)
+		=> ((RotateAnimation)bindable).DefaultRotation;
+
+	/// <summary>
+	/// Initializes a new instance of <see cref="RotateAnimation"/>.
+	/// </summary>
+	public RotateAnimation() : base(200)
+	{
+	}
+
+	/// <summary>
+	/// Initializes a new instance of <see cref="RotateAnimation"/>.
+	/// </summary>
+	/// <param name="defaultLength">The default length of the animation.</param>
+	protected RotateAnimation(uint defaultLength) : base(defaultLength)
+	{
+	}
+
+	/// <summary>
+	/// Gets or sets the default rotation used by the animation.
+	/// </summary>
+	protected virtual double DefaultRotation { get; set; } = 180.0;
+
+	/// <inheritdoc />
+	public override async Task Animate(VisualElement view)
+	{
+		ArgumentNullException.ThrowIfNull(view);
+
+		await view.RotateTo(Rotation, Length, Easing);
+		view.Rotation = 0;
+	}
+}
+

src/CommunityToolkit.Maui/Animations/ScaleAnimation.shared.cs

@@ -0,0 +1,48 @@
+namespace CommunityToolkit.Maui.Animations;
+
+/// <summary>
+/// Animation that will scale the supplied view to the specified <see cref="Scale"/> and then back down to its original scale.
+/// </summary>
+public class ScaleAnimation : BaseAnimation
+{
+	/// <summary>
+	/// Backing BindableProperty for the <see cref="Scale"/> property.
+	/// </summary>
+	public static readonly BindableProperty ScaleProperty =
+		BindableProperty.Create(
+			nameof(Scale),
+			typeof(double),
+			typeof(ScaleAnimation),
+			1.2,
+			BindingMode.TwoWay);
+
+	/// <summary>
+	/// Gets or sets the scale to animate to before returning to the element's current scale.
+	/// </summary>
+	public double Scale
+	{
+		get => (double)GetValue(ScaleProperty);
+		set => SetValue(ScaleProperty, value);
+	}
+
+	/// <summary>
+	/// Initializes a new instance of <see cref="ScaleAnimation"/>.
+	/// </summary>
+	public ScaleAnimation() : base(340)
+	{
+
+	}
+
+	/// <inheritdoc />
+	public override async Task Animate(VisualElement view)
+	{
+		ArgumentNullException.ThrowIfNull(view);
+
+		var originalScale = view.Scale;
+
+		var duration = Length / 2;
+
+		await view.ScaleTo(Scale, duration, Easing);
+		await view.ScaleTo(originalScale, duration, Easing);
+	}
+}