1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
<!DOCTYPE html>
<html lang='en'><head><meta http-equiv='content-type' content='text/html; charset=UTF-8' /></head><body>
<div class="entry-content">
<div class="entry-title roundTop">
<h1 class="jq-clearfix">.triggerHandler()</h1>
<div class="entry-meta jq-clearfix">
Categories:
<span class="category"><a href="http://api.jquery.com/category/events/" title="View all posts in Events">Events</a> > <a href="http://api.jquery.com/category/events/event-handler-attachment/" title="View all posts in Event Handler Attachment">Event Handler Attachment</a></span>
</div>
</div>
<div id="triggerHandler1" class="entry method">
<h2 class="jq-clearfix roundTop section-title">
<span class="name">.triggerHandler( eventType, extraParameters )</span> <span class="returns">Returns: <a class="return" href="http://api.jquery.com/Types/#Object">Object</a></span>
</h2>
<div class="jq-box roundBottom entry-details">
<p class="desc"><strong>Description: </strong>Execute all handlers attached to an element for an event.</p>
<ul class="signatures"><li class="signature" id="triggerHandler-eventType-extraParameters">
<h4 class="name">
<span class="versionAdded">version added: <a href="/category/version/1.2/">1.2</a></span>.triggerHandler( eventType, extraParameters )</h4>
<p class="arguement"><strong>eventType</strong>A string containing a JavaScript event type, such as <code>click</code> or <code>submit</code>.</p>
<p class="arguement"><strong>extraParameters</strong>An array of additional parameters to pass along to the event handler.</p>
</li></ul>
<div class="longdesc">
<p>The <code>.triggerHandler()</code> method behaves similarly to <code>.trigger()</code>, with the following exceptions:</p>
<ul>
<li>The <code>.triggerHandler()</code> method does not cause the default behavior of an event to occur (such as a form submission).</li>
<li>While <code>.trigger()</code> will operate on all elements matched by the jQuery object, <code>.triggerHandler()</code> only affects the first matched element.</li>
<li>Events created with <code>.triggerHandler()</code> do not bubble up the DOM hierarchy; if they are not handled by the target element directly, they do nothing.</li>
<li>Instead of returning the jQuery object (to allow chaining), <code>.triggerHandler()</code> returns whatever value was returned by the last handler it caused to be executed. If no handlers are triggered, it returns <code>undefined</code>
</li>
</ul>
<p>For more information on this method, see the discussion for <code><a href="/trigger">.trigger()</a></code>.</p>
</div>
<h3>Example:</h3>
<div class="entry-examples" id="entry-examples"><div id="example-0">
<h4><span class="desc">If you called .triggerHandler() on a focus event - the browser's default focus action would not be triggered, only the event handlers bound to the focus event.</span></h4>
<pre class="prettyprint"><code class="example demo-code"><!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-1.7rc2.js"></script>
</head>
<body>
<button id="old">.trigger("focus")</button>
<button id="new">.triggerHandler("focus")</button><br/><br/>
<input type="text" value="To Be Focused"/>
<script>
$("#old").click(function(){
$("input").trigger("focus");
});
$("#new").click(function(){
$("input").triggerHandler("focus");
});
$("input").focus(function(){
$("<span>Focused!</span>").appendTo("body").fadeOut(1000);
});
</script>
</body>
</html></code></pre>
<h4>Demo:</h4>
<div class="demo code-demo"></div>
</div></div>
</div>
</div>
</div>
</body></html>
|
