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using Microsoft.Xaml.Behaviors;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
namespace FLY.ControlLibrary.UI.OSK
{
/// <summary>
/// 为textbox 添加 虚拟键盘
/// </summary>
public class KeyboardBehavior : Behavior<FrameworkElement>
{
/// <summary>
/// 使能 点击 textbox 弹出虚拟键盘
/// </summary>
public static bool Enable = true;
/// <summary>
/// 使能 鼠标点击 textbox 弹出虚拟键盘, 只是为了测试！！！！
/// </summary>
public static bool EnableMouseDown = false;
/// <summary>
/// 虚拟键盘正在显示
/// </summary>
public static bool IsKeyboardOnShow = false;
/// <summary>
///
/// </summary>
public KeyboardBehavior()
{
}
/// <summary>
/// 创建控件时调用
/// </summary>
protected override void OnAttached()
{
base.OnAttached();
//DependencyObject dobj = AssociatedObject;//它是Border
//do
//{
// if (dobj is System.Windows.Controls.TextBox)
// {
// break;
// }
// dobj = System.Windows.Media.VisualTreeHelper.GetParent(dobj);
//} while (dobj != null);
//TextBox tb = dobj as TextBox;
TextBox tb = COMMON.GetParent<TextBox>(AssociatedObject);
if (!tb.AcceptsReturn) //它不能通过按 Enter 键触发换行。 使按Enter 能实现LostFocus
{
tb.KeyDown += AssociatedObject_KeyDown;
}
//不能在 textbox 添加点击事件， 它根本不触发。。。
//tb.TouchDown += AssociatedObject_TouchDown;
//tb.MouseDown += AssociatedObject_MouseDown;
AssociatedObject.TouchUp += AssociatedObject_TouchDown;
AssociatedObject.MouseDown += AssociatedObject_MouseDown;
}
void AssociatedObject_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)
{
if (e.Key == System.Windows.Input.Key.Enter)
{
TextBox tb = sender as TextBox;
if (tb.AcceptsReturn)
return;
//触发失去焦点事件！！！！！！！
//让 绑定的 property 生效
tb.RaiseEvent(new RoutedEventArgs(TextBox.LostFocusEvent));
}
}
/// <summary>
/// 销毁控件时调用
/// </summary>
protected override void OnDetaching()
{
//DependencyObject dobj = AssociatedObject;
//do
//{
// if (dobj is System.Windows.Controls.TextBox)
// {
// break;
// }
// dobj = System.Windows.Media.VisualTreeHelper.GetParent(dobj);
//} while (dobj != null);
//TextBox tb = dobj as TextBox;
TextBox tb = COMMON.GetParent<TextBox>(AssociatedObject);
tb.KeyDown -= AssociatedObject_KeyDown;
//border
AssociatedObject.TouchDown -= AssociatedObject_TouchDown;
AssociatedObject.MouseDown -= AssociatedObject_MouseDown;
base.OnDetaching();
}
void AssociatedObject_TouchDown(object sender, System.Windows.Input.TouchEventArgs e)
{
if (IsKeyboardOnShow)//虚拟键盘已经打开
return;
//press release 都会调用
if (!Enable)
return;
DependencyObject dobj = sender as DependencyObject;
popPad(dobj);
//不能在 press 时 handle = true。 这样会导致焦点没法落在 textbox 上，而且也没有了 release
//e.Handled = true;
}
void AssociatedObject_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
if (IsKeyboardOnShow)//虚拟键盘已经打开
return;
//press release 都会调用
if (e.ButtonState == System.Windows.Input.MouseButtonState.Released)
return;
if (!Enable)
return;
if (!EnableMouseDown)
return;
DependencyObject dobj = sender as DependencyObject;
popPad(dobj);
//不能在 press 时 handle = true。 这样会导致焦点没法落在 textbox 上，而且也没有了 release
//e.Handled = true;
}
void popPad(DependencyObject dobj)
{
TextBox tb = COMMON.GetParent<TextBox>(dobj);
if (tb != null)
{
KeyboardBehavior.PopPad(tb);
}
}
public static void PopPad(TextBox tb)
{
IVirtualKeyboard kb;
string param = "";
if ((tb.Tag is string))
param = (string)tb.Tag;
param = param.ToLower();
if (param.Contains("full"))
{
var fkb = new WdFullKeyboard();
if (param.Contains("password") || param.Contains("pw"))
fkb.IsPwMode = true;
kb = fkb;
}
else
kb = new WdNumKeyboard();
Window w = (Window)kb;
Window window = COMMON.GetWindow(tb);
w.Owner = window;
IsKeyboardOnShow = true;
w.Closed += (s, e) => {
IsKeyboardOnShow = false;
if (window == null)
return;
if (window.WindowState == WindowState.Normal) {
//当window 为2级时， 关闭虚拟键盘，window有概率不刷新
//移动一下界面。 强制令它刷新
//window.UpdateLayout() 无效
window.Left += 1;
}
};
kb.Open(tb);
}
public static void PopPad(TextBox tb,Window parentWindow)
{
IVirtualKeyboard kb;
string param = "";
if ((tb.Tag is string))
param = (string)tb.Tag;
param = param.ToLower();
if (param.Contains("full"))
{
var fkb = new WdFullKeyboard();
if (param.Contains("password") || param.Contains("pw"))
fkb.IsPwMode = true;
kb = fkb;
}
else
kb = new WdNumKeyboard();
Window w = (Window)kb;
Window window = parentWindow;
w.Owner = parentWindow;
IsKeyboardOnShow = true;
w.Closed += (s, e) => {
IsKeyboardOnShow = false;
if (window == null)
return;
if (window.WindowState == WindowState.Normal)
{
//当window 为2级时， 关闭虚拟键盘，window有概率不刷新
//移动一下界面。 强制令它刷新
//window.UpdateLayout() 无效
window.Left += 1;
}
};
kb.Open(tb);
}
}
}