我可以创建在WPF键序列的键绑定？ [英] Can I create a KeyBinding for a sequence of keys in WPF?

问题描述

是否有可能在WPF定义键绑定关键presses像在Visual Studio例如快捷键序列<大骨节病>控制 + <大骨节病>研究，<大骨节病>控制 + <大骨节病> A 运行在当前解决方案中的所有测试

Is it possible to define key bindings in WPF for a sequence of key presses like the shortcuts in Visual Studio e.g. Ctrl + R, Ctrl + A is run all tests in current solution

据我可以看到我只能绑定如单组合键<大骨节病>控制 + <大骨节病>取值使用元素。我可以绑定使用此序列或我将不得不手动处理的关键presses做到这一点？

As far as I can see I can only bind single key combinations like Ctrl + S using the element. Can I bind sequences using this or will I have to manually handle the key presses to do this?

推荐答案

您需要创建自己的 InputGesture ，通过重写的 匹配 方法。

You need to create your own InputGesture, by overriding the Matches method.

类似的东西：

public class MultiInputGesture : InputGesture
{
    public MultiInputGesture()
    {
        Gestures = new InputGestureCollection();
    }

    public InputGestureCollection Gestures { get; private set; }

    private int _currentMatchIndex = 0;

    public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
    {
        if (_currentMatchIndex < Gestures.Count)
        {
            if (Gestures[_currentMatchIndex].Matches(targetElement, inputEventArgs))
            {
                _currentMatchIndex++;
                return (_currentMatchIndex == Gestures.Count);
            }
        }
        _currentMatchIndex = 0;
        return false;
    }
}

这可能需要不止一点点，就像忽略某些事件（如的KeyUp 的KeyDown 之间的事件事件不该T重置 _currentMatchIndex ），但你得到的图片...

It probably needs a little more than that, like ignoring certain events (e.g. KeyUp events between KeyDown events shouldn't reset _currentMatchIndex), but you get the picture...

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