确定焦点事件:单击或tabstop

How to determine the focus event on jQuery if the focus is fired on click event or tabstop? I have this focus event that if the focus is fired by a tabstop I will execute something and if it is a click I will not execute it.

如果焦点在单击事件或tabstop上触发，如何确定jQuery上的焦点事件?我有一个焦点事件，如果焦点被tabstop触发，我将执行一些东西，如果是点击，我将不会执行它。

Here's a pseudo code

这是一个伪代码

$('a').focus(function(){
    if(ThisIsTabStop()) {
         IWillExecuteThis();
    }
});

1 个解决方案

#1

If an element is clicked, the mousedown event fires before focus. You just need to set a data attribute, and check it in the focus event.

如果单击了一个元素，那么mousedown事件将在focus之前触发。您只需要设置一个数据属性，并在焦点事件中检查它。

Try this demo: http://jsfiddle.net/KcGcF/1/

试试这个演示:http://jsfiddle.net/KcGcF/1/

$('a').mousedown(function(e){
    var $this = $(this);

    // Only set the data attribute if it's not already focused, as the
    // focus event wouldn't fire afterwards, leaving the flag set.
    if(!$this.is(':focus')){
        $this.data('mdown',true);
    }
});

$('a').focus(function(e){
    var $this = $(this);
    var mdown = $this.data('mdown');

    // Remove the flag so we don't have it set next time if the user
    // uses the tab key to come back.
    $this.removeData('mdown');

    // Check if the mousedown event fired before the focus
    if(mdown){
        // Click
    } else {
        // Tab
    }
});

1 个解决方案

#1

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