1
|
define([
|
2
|
"../core",
|
3
|
"../core/init",
|
4
|
"../deferred"
|
5
|
], function( jQuery ) {
|
6
|
|
7
|
// The deferred used on DOM ready
|
8
|
var readyList;
|
9
|
|
10
|
jQuery.fn.ready = function( fn ) {
|
11
|
// Add the callback
|
12
|
jQuery.ready.promise().done( fn );
|
13
|
|
14
|
return this;
|
15
|
};
|
16
|
|
17
|
jQuery.extend({
|
18
|
// Is the DOM ready to be used? Set to true once it occurs.
|
19
|
isReady: false,
|
20
|
|
21
|
// A counter to track how many items to wait for before
|
22
|
// the ready event fires. See #6781
|
23
|
readyWait: 1,
|
24
|
|
25
|
// Hold (or release) the ready event
|
26
|
holdReady: function( hold ) {
|
27
|
if ( hold ) {
|
28
|
jQuery.readyWait++;
|
29
|
} else {
|
30
|
jQuery.ready( true );
|
31
|
}
|
32
|
},
|
33
|
|
34
|
// Handle when the DOM is ready
|
35
|
ready: function( wait ) {
|
36
|
|
37
|
// Abort if there are pending holds or we're already ready
|
38
|
if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
|
39
|
return;
|
40
|
}
|
41
|
|
42
|
// Remember that the DOM is ready
|
43
|
jQuery.isReady = true;
|
44
|
|
45
|
// If a normal DOM Ready event fired, decrement, and wait if need be
|
46
|
if ( wait !== true && --jQuery.readyWait > 0 ) {
|
47
|
return;
|
48
|
}
|
49
|
|
50
|
// If there are functions bound, to execute
|
51
|
readyList.resolveWith( document, [ jQuery ] );
|
52
|
|
53
|
// Trigger any bound ready events
|
54
|
if ( jQuery.fn.triggerHandler ) {
|
55
|
jQuery( document ).triggerHandler( "ready" );
|
56
|
jQuery( document ).off( "ready" );
|
57
|
}
|
58
|
}
|
59
|
});
|
60
|
|
61
|
/**
|
62
|
* The ready event handler and self cleanup method
|
63
|
*/
|
64
|
function completed() {
|
65
|
document.removeEventListener( "DOMContentLoaded", completed, false );
|
66
|
window.removeEventListener( "load", completed, false );
|
67
|
jQuery.ready();
|
68
|
}
|
69
|
|
70
|
jQuery.ready.promise = function( obj ) {
|
71
|
if ( !readyList ) {
|
72
|
|
73
|
readyList = jQuery.Deferred();
|
74
|
|
75
|
// Catch cases where $(document).ready() is called after the browser event has already occurred.
|
76
|
// We once tried to use readyState "interactive" here, but it caused issues like the one
|
77
|
// discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15
|
78
|
if ( document.readyState === "complete" ) {
|
79
|
// Handle it asynchronously to allow scripts the opportunity to delay ready
|
80
|
setTimeout( jQuery.ready );
|
81
|
|
82
|
} else {
|
83
|
|
84
|
// Use the handy event callback
|
85
|
document.addEventListener( "DOMContentLoaded", completed, false );
|
86
|
|
87
|
// A fallback to window.onload, that will always work
|
88
|
window.addEventListener( "load", completed, false );
|
89
|
}
|
90
|
}
|
91
|
return readyList.promise( obj );
|
92
|
};
|
93
|
|
94
|
// Kick off the DOM ready check even if the user does not
|
95
|
jQuery.ready.promise();
|
96
|
|
97
|
});
|