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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Markup;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Tango.SharedUI.Helpers;
namespace Tango.Touch.Components
{
[ContentProperty(nameof(Content))]
[TemplatePart(Name = PART_EllipseName, Type = typeof(Ellipse))]
[TemplatePart(Name = PART_ScaleName, Type = typeof(ScaleTransform))]
public class Ripple : Control
{
private const String PART_ScaleName = "PART_scale";
private const String PART_EllipseName = "PART_ellipse";
private ScaleTransform _scale;
private Ellipse _ellipse;
private bool _isAnimating;
public UIElement Content
{
get { return (UIElement)GetValue(ContentProperty); }
set { SetValue(ContentProperty, value); }
}
public static readonly DependencyProperty ContentProperty =
DependencyProperty.Register("Content", typeof(UIElement), typeof(Ripple), new PropertyMetadata(null));
public CornerRadius CornerRadius
{
get { return (CornerRadius)GetValue(CornerRadiusProperty); }
set { SetValue(CornerRadiusProperty, value); }
}
public static readonly DependencyProperty CornerRadiusProperty =
DependencyProperty.Register("CornerRadius", typeof(CornerRadius), typeof(Ripple), new PropertyMetadata(new CornerRadius()));
public Brush RippleBrush
{
get { return (Brush)GetValue(RippleBrushProperty); }
set { SetValue(RippleBrushProperty, value); }
}
public static readonly DependencyProperty RippleBrushProperty =
DependencyProperty.Register("RippleBrush", typeof(Brush), typeof(Ripple), new PropertyMetadata(null));
public ScrollViewer SynchedScrollViewer
{
get { return (ScrollViewer)GetValue(SynchedScrollViewerProperty); }
set { SetValue(SynchedScrollViewerProperty, value); }
}
public static readonly DependencyProperty SynchedScrollViewerProperty =
DependencyProperty.Register("SynchedScrollViewer", typeof(ScrollViewer), typeof(Ripple), new PropertyMetadata(null));
static Ripple()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(Ripple), new FrameworkPropertyMetadata(typeof(Ripple)));
}
public Ripple()
{
this.Loaded += Ripple_Loaded;
}
private void Ripple_Loaded(object sender, RoutedEventArgs e)
{
if (SynchedScrollViewer != null)
{
SynchedScrollViewer.ScrollChanged += (_, __) => CancelRipple(true);
}
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
_scale = GetTemplateChild(PART_ScaleName) as ScaleTransform;
_ellipse = GetTemplateChild(PART_EllipseName) as Ellipse;
FrameworkElement parent = UIHelper.FindAncestor<Button>(this);
if (parent == null)
{
parent = UIHelper.FindAncestor<ListBoxItem>(this);
}
if (parent == null)
{
parent = UIHelper.FindAncestor<FrameworkElement>(this);
}
//parent.PreviewTouchDown += Parent_PreviewTouchDown;
//parent.TouchMove += (_, __) => CancelRipple();
//parent.PreviewTouchUp += Parent_PreviewTouchUp;
//parent.PreviewMouseDown += Parent_PreviewMouseDown;
parent.PreviewTouchDown += Parent_PreviewTouchDown;
//parent.TouchMove += (_, __) => CancelRipple();
//parent.PreviewMouseUp += Parent_PreviewMouseUp;
parent.PreviewTouchUp += Parent_PreviewTouchUp;
}
private void Parent_PreviewMouseUp(object sender, MouseButtonEventArgs e)
{
OnRippleUp(new Point(e.GetPosition(this).X, e.GetPosition(this).Y));
}
private void Parent_PreviewTouchUp(object sender, TouchEventArgs e)
{
OnRippleUp(new Point(e.GetTouchPoint(this).Position.X, e.GetTouchPoint(this).Position.Y));
}
private void Parent_PreviewMouseDown(object sender, MouseButtonEventArgs e)
{
OnRippleDown(new Point(e.GetPosition(this).X, e.GetPosition(this).Y));
}
private void Parent_PreviewTouchDown(object sender, TouchEventArgs e)
{
OnRippleDown(new Point(e.GetTouchPoint(this).Position.X, e.GetTouchPoint(this).Position.Y));
}
private void CancelRipple(bool immidiate = false)
{
if (_isAnimating)
{
_isAnimating = false;
DoubleAnimation ani = new DoubleAnimation();
ani.To = 0;
ani.Duration = TimeSpan.FromSeconds(immidiate ? 0 : 0.1);
_scale.BeginAnimation(ScaleTransform.ScaleXProperty, ani);
_scale.BeginAnimation(ScaleTransform.ScaleYProperty, ani);
}
}
private void OnRippleUp(Point position)
{
if (!(position.X >= 0 && position.X <= ActualWidth && position.Y >= 0 && position.Y <= ActualHeight))
{
CancelRipple();
}
}
private void OnRippleDown(Point position)
{
_isAnimating = true;
Canvas.SetLeft(_ellipse, position.X - (_ellipse.Width / 2));
Canvas.SetTop(_ellipse, position.Y - (_ellipse.Height / 2));
DoubleAnimation ani = new DoubleAnimation();
ani.From = 0;
ani.To = 5;
ani.AutoReverse = true;
ani.Duration = TimeSpan.FromSeconds(0.5);
ani.AccelerationRatio = 0.2;
ani.DecelerationRatio = 0.2;
_scale.BeginAnimation(ScaleTransform.ScaleXProperty, ani);
_scale.BeginAnimation(ScaleTransform.ScaleYProperty, ani);
}
}
}
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