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update InputClickHelper

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This commit is contained in:
NaBian 2020-06-23 00:28:30 +08:00
parent 089aa7d2e8
commit f9614d3b17
2 changed files with 29 additions and 43 deletions
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2
src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
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@ -346,7 +346,7 @@
<Compile Include="$(MSBuildThisFileDirectory)Tools\Helper\DesignerHelper.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Tools\Helper\DpiHelper.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Tools\Helper\IconHelper.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Tools\Helper\Input\InputClickHelper.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Tools\Helper\InputClickHelper.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Tools\Helper\ResourceHelper.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Tools\Helper\ScreenHelper.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Tools\Helper\SecurityHelper.cs" />

70
src/Shared/HandyControl_Shared/Tools/Helper/Input/InputClickHelper.cs → src/Shared/HandyControl_Shared/Tools/Helper/InputClickHelper.cs
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@ -2,15 +2,22 @@
using System.Windows;
using System.Windows.Input;
namespace HandyControl.Tools.Input
namespace HandyControl.Tools
{
/// <summary>
/// 输入层点击帮助类
/// 输入层点击帮助类
/// </summary>
public static class InputClickHelper
{
private static readonly DependencyProperty InputInfoProperty = DependencyProperty.RegisterAttached(
"InputInfo", typeof(InputInfo), typeof(InputClickHelper), new PropertyMetadata(default(InputInfo)));
private static void SetInputInfo(DependencyObject element, InputInfo value) => element.SetValue(InputInfoProperty, value);
private static InputInfo GetInputInfo(DependencyObject element) => (InputInfo)element.GetValue(InputInfoProperty);
/// <summary>
/// 将 MouseDown MouseMove MouseUp 封装为点击事件
/// 将 MouseDown MouseMove MouseUp 封装为点击事件
/// </summary>
/// <param name="element">要被附加的元素</param>
/// <param name="clickEventHandler">点击的事件</param>
@ -34,7 +41,7 @@ namespace HandyControl.Tools.Input
}
/// <summary>
/// 去掉对 <paramref name="element"/> 的点击时间的监听
/// 去掉对 <paramref name="element" /> 的点击时间的监听
/// </summary>
/// <param name="element"></param>
/// <param name="clickEventHandler">点击的事件</param>
@ -43,10 +50,7 @@ namespace HandyControl.Tools.Input
EventHandler dragStarted = null)
{
var inputInfo = GetInputInfo(element);
if (inputInfo == null)
{
return;
}
if (inputInfo == null) return;
inputInfo.ClickEventHandler -= clickEventHandler;
inputInfo.DragStarted -= dragStarted;
@ -63,34 +67,28 @@ namespace HandyControl.Tools.Input
private static void Element_LostMouseCapture(object sender, MouseEventArgs e)
{
var element = (UIElement) sender;
var element = (UIElement)sender;
GetInputInfo(element)?.LostCapture();
}
private static void Element_MouseUp(object sender, MouseButtonEventArgs e)
{
var element = (UIElement) sender;
var element = (UIElement)sender;
GetInputInfo(element)?.Up(e.GetPosition(element));
}
private static void Element_MouseMove(object sender, MouseEventArgs e)
{
var element = (UIElement) sender;
var element = (UIElement)sender;
GetInputInfo(element)?.Move(e.GetPosition(element));
}
private static void Element_MouseDown(object sender, MouseButtonEventArgs e)
{
var element = (UIElement) sender;
var element = (UIElement)sender;
GetInputInfo(element)?.Down(e.GetPosition(element));
}
private static readonly DependencyProperty InputInfoProperty = DependencyProperty.RegisterAttached(
"InputInfo", typeof(InputInfo), typeof(InputClickHelper), new PropertyMetadata(default(InputInfo)));
private static InputInfo GetOrCreateInputInfo(UIElement element)
{
var inputInfo = GetInputInfo(element);
@ -103,18 +101,18 @@ namespace HandyControl.Tools.Input
return inputInfo;
}
private static void SetInputInfo(DependencyObject element, InputInfo value)
{
element.SetValue(InputInfoProperty, value);
}
private static InputInfo GetInputInfo(DependencyObject element)
{
return (InputInfo) element.GetValue(InputInfoProperty);
}
private class InputInfo
{
private const double ToleranceSquared = 0.01;
private Point _downedPosition;
private bool _isClick;
public event EventHandler ClickEventHandler;
public event EventHandler DragStarted;
public void Down(Point position)
{
_downedPosition = position;
@ -134,8 +132,7 @@ namespace HandyControl.Tools.Input
public void Up(Point position)
{
_isClick = _isClick
&& (position - _downedPosition).LengthSquared <= ToleranceSquared;
_isClick = _isClick && (position - _downedPosition).LengthSquared <= ToleranceSquared;
if (!_isClick) return;
@ -144,20 +141,9 @@ namespace HandyControl.Tools.Input
_isClick = false;
}
public void LostCapture()
{
_isClick = false;
}
public double ToleranceSquared { set; get; } = 0.01;
public event EventHandler ClickEventHandler;
public event EventHandler DragStarted;
public void LostCapture() => _isClick = false;
public bool IsEmpty() => ClickEventHandler is null && DragStarted is null;
private Point _downedPosition;
private bool _isClick;
}
}
}