如何覆盖NSTextView中的3手指点击行为？

问题描述

在Mac OS X上，对单词进行3指点击，会弹出一个带有该单词定义的窗口。

On Mac OS X, doing a 3-finger tap on a word pops up a window with a definition of the word.

在Xcode中，对符号进行3指点击显示其文档，非常像是已经被alt +单击。

This idiom is also used in Xcode, where doing a 3-finger tap over a symbol shows its documentation, much like if it had been alt+clicked.

我想做类似的事情并且当我的应用程序的用户在 NSTextView 中对某些令牌进行3指点击时显示定义。但是，我找不到如何检测用3个手指完成敲击。

I would like to do something similar to that and display definitions when users of my application do a 3-finger tap on certain tokens in a NSTextView. However, I can't find how to detect that a tap has been done with 3 fingers. Could someone help me with that?

编辑如果这提醒任何人，三个事件（通过覆盖 NSApplication sendEvent：] ）在你做这种敲击时触发：

EDIT If this reminds anything to anyone, three events (caught by overriding [NSApplication sendEvent:]) are triggered when you do this kind of tap:

NSEvent: type=SysDefined loc=(270.918,250.488) time=417954.6 flags=0x100 win=0x0 winNum=28293 ctxt=0x0 subtype=6 data1=1818981744 data2=1818981744
NSEvent: type=SysDefined loc=(270.918,250.488) time=417954.6 flags=0x100 win=0x0 winNum=28293 ctxt=0x0 subtype=9 data1=1818981744 data2=1818981744
NSEvent: type=Kitdefined loc=(0,263) time=417954.8 flags=0x100 win=0x0 winNum=28306 ctxt=0x0 subtype=4 data1=1135411200 data2=1132691456

推荐答案

通过覆盖 NSTextView reference / applicationkit / classes / NSResponder_Class / Reference / Reference.html＃// apple_ref / occ / instm / NSResponder / quickLookWithEvent％3arel =nofollow> quickLookWithEvent： / a>。

Reacting on a triple tap in a NSTextView can most easily be done by overriding quickLookWithEvent:.

-(void)quickLookWithEvent:(NSEvent *)event
{
    NSLog(@"Look at me! %@", event);
}

它还教会了你可以三次点击任何东西来调用Quick Look 。

It also taught me that you can triple tap anything to invoke Quick Look on it.

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