How can I trigger a mouseout event for two elements in jQuery?

问题

Let's suppose I have two spearate divs, A and B, which overlap at a corner:

+-----+
|     |
|  A  |
|   +-----+
+---|     |
    |  B  |
    |     |
    +-----+

I want to trigger an event when the mouse leaves both A and B.

I tried this

$("#a, #b").mouseleave(function() { ... });

But this triggers the event if the mouse leaves either node. I want the event to be triggered once the mouse is not over either node.

Is there an easy way to do this? I had an idea that involved global variables keeping track of the mouse state over each div, but I was hoping for something more elegant.

回答1:

I encounter this problem all the time, and my 'quick fix' if it fits what I'm doing is the following;

var timer;

$("#a, #b").mouseleave(function() {
    timer = setTimeout(doSomething, 10);
}).mouseenter(function() {
    clearTimeout(timer);
});


function doSomething() {
    alert('mouse left');
}

Fiddle : http://jsfiddle.net/adeneo/LdDBn/

回答2:

If you nest the second container inside the first there is no need for a complex jQuery solution:

http://jsfiddle.net/5cKSf/3/

HTML

<div class="a">
    This is the A div
    <div class="b">
        This is the B div
    </div>
</div>

CSS

.a {
    background-color: red;
    width: 100px;
    height: 100px;
    position: relative;
}

.b {
    background-color: blue;
    width: 100px;
    height: 100px;
    position:absolute;
    top: 50px;
    left: 50px;
}

$('.a').hover(function() {
   alert('mouseenter'); 
}, function() {
   alert('mouseleave');
});

回答3:

I guess you can achieve this using something like:

var mouseLeftD1 = false;
var mouseLeftD2 = false;

$('#d1').mouseleave(function() {
  mouseLeftD1 = true;
  if(mouseLeftD2 == true) setTimeout(mouseLeftBoth, 10);
}).mouseenter(function() {
  mouseLeftD1 = false;
});

$('#d2').mouseleave(function() {
  mouseLeftD2 = true;
  if(mouseLeftD1 == true) setTimeout(mouseLeftBoth, 10);
}).mouseenter(function() {
  mouseLeftD2 = false;
});

function mouseLeftBoth() {
  if(mouseLeftD1 && mouseLeftD2) {
    // .. your code here ..
  }
}

来源：https://stackoverflow.com/questions/8557492/how-can-i-trigger-a-mouseout-event-for-two-elements-in-jquery

标签

jquery

events

dom

mouseleave