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Transform $.bindReady into $.ready.promise. It is now possible to use $.ready.promise or $.when( $.ready ) to get the ready promise. Costs *1* byte min/gzipped. Unit test added.

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jaubourg
2012-05-06 01:05:03 +02:00
parent 714b8ffd2b
commit e3cf0e220c
3 changed files with 68 additions and 50 deletions
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96
src/core.js
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@@ -251,11 +251,8 @@ jQuery.fn = jQuery.prototype = {
},
ready: function( fn ) {
// Attach the listeners
jQuery.bindReady();
// Add the callback
readyList.add( fn );
jQuery.ready.promise().done( fn );
return this;
},
@@ -412,7 +409,7 @@ jQuery.extend({
}
// If there are functions bound, to execute
readyList.fireWith( document, [ jQuery ] );
readyList.resolveWith( document, [ jQuery ] );
// Trigger any bound ready events
if ( jQuery.fn.trigger ) {
@@ -421,51 +418,6 @@ jQuery.extend({
}
},
bindReady: function() {
if ( readyList ) {
return;
}
readyList = jQuery.Callbacks( "once memory" );
// Catch cases where $(document).ready() is called after the
// browser event has already occurred.
if ( document.readyState !== "loading" ) {
// Handle it asynchronously to allow scripts the opportunity to delay ready
return setTimeout( jQuery.ready, 1 );
}
// Mozilla, Opera and webkit nightlies currently support this event
if ( document.addEventListener ) {
// Use the handy event callback
document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );
// A fallback to window.onload, that will always work
window.addEventListener( "load", jQuery.ready, false );
// If IE event model is used
} else if ( document.attachEvent ) {
// ensure firing before onload,
// maybe late but safe also for iframes
document.attachEvent( "onreadystatechange", DOMContentLoaded );
// A fallback to window.onload, that will always work
window.attachEvent( "onload", jQuery.ready );
// If IE and not a frame
// continually check to see if the document is ready
var toplevel = false;
try {
toplevel = window.frameElement == null;
} catch(e) {}
if ( document.documentElement.doScroll && toplevel ) {
doScrollCheck();
}
}
},
// See test/unit/core.js for details concerning isFunction.
// Since version 1.3, DOM methods and functions like alert
// aren't supported. They return false on IE (#2968).
@@ -897,6 +849,50 @@ jQuery.extend({
browser: {}
});
jQuery.ready.promise = function( object ) {
if ( !readyList ) {
readyList = jQuery.Deferred();
// Catch cases where $(document).ready() is called after the
// browser event has already occurred.
if ( document.readyState !== "loading" ) {
// Handle it asynchronously to allow scripts the opportunity to delay ready
setTimeout( jQuery.ready, 1 );
// Mozilla, Opera and webkit nightlies currently support this event
} else if ( document.addEventListener ) {
// Use the handy event callback
document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );
// A fallback to window.onload, that will always work
window.addEventListener( "load", jQuery.ready, false );
// If IE event model is used
} else if ( document.attachEvent ) {
// ensure firing before onload,
// maybe late but safe also for iframes
document.attachEvent( "onreadystatechange", DOMContentLoaded );
// A fallback to window.onload, that will always work
window.attachEvent( "onload", jQuery.ready );
// If IE and not a frame
// continually check to see if the document is ready
var toplevel = false;
try {
toplevel = window.frameElement == null;
} catch(e) {}
if ( document.documentElement.doScroll && toplevel ) {
doScrollCheck();
}
}
}
return readyList.promise( object );
};
// Populate the class2type map
jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) {
class2type[ "[object " + name + "]" ] = name.toLowerCase();