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Cleaned up a bunch of the event code, removed .oneEvent() and .unEvent().

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This commit is contained in:
John Resig 2007-01-02 16:43:05 +00:00
parent 07612d92da
commit 0ae7198b9e
1 changed files with 26 additions and 39 deletions
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63
src/event/event.js
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@ -93,7 +93,8 @@ jQuery.event = {
handle: function(event) {
if ( typeof jQuery == "undefined" ) return false;
event = jQuery.event.fix( event || window.event || {} ); // Empty object is for triggered events with no data
// Empty object is for triggered events with no data
event = jQuery.event.fix( event || window.event || {} );
// returned undefined or false
var returnValue;
@ -136,14 +137,16 @@ jQuery.event = {
// check if target is a textnode (safari)
if (event.target.nodeType == 3) {
// store a copy of the original event object and clone because target is read only
// store a copy of the original event object
// and clone because target is read only
var originalEvent = event;
event = jQuery.extend({}, originalEvent);
// get parentnode from textnode
event.target = originalEvent.target.parentNode;
// add preventDefault and stopPropagation since they will not work on the clone
// add preventDefault and stopPropagation since
// they will not work on the clone
event.preventDefault = function() {
return originalEvent.preventDefault();
};
@ -153,17 +156,15 @@ jQuery.event = {
}
// fix preventDefault and stopPropagation
if (!event.preventDefault) {
if (!event.preventDefault)
event.preventDefault = function() {
this.returnValue = false;
};
}
if (!event.stopPropagation) {
if (!event.stopPropagation)
event.stopPropagation = function() {
this.cancelBubble = true;
};
}
return event;
}
@ -1032,35 +1033,16 @@ new function(){
return f ? this.bind(o, f) : this.trigger(o);
};
// Handle event unbinding
// TODO remove
jQuery.fn["un"+o] = function(f){ return this.unbind(o, f); };
// Finally, handle events that only fire once
// TODO remove
jQuery.fn["one"+o] = function(f){
// save cloned reference to this
var element = jQuery(this);
var handler = function() {
// unbind itself when executed
element.unbind(o, handler);
element = null;
// apply original handler with the same arguments
return f.apply(this, arguments);
};
return this.bind(o, handler);
};
};
// If Mozilla is used
if ( jQuery.browser.mozilla || jQuery.browser.opera ) {
if ( jQuery.browser.mozilla || jQuery.browser.opera )
// Use the handy event callback
document.addEventListener( "DOMContentLoaded", jQuery.ready, false );
// If IE is used, use the excellent hack by Matthias Miller
// http://www.outofhanwell.com/blog/index.php?title=the_window_onload_problem_revisited
} else if ( jQuery.browser.msie ) {
else if ( jQuery.browser.msie ) {
// Only works if you document.write() it
document.write("<scr" + "ipt id=__ie_init defer=true " +
@ -1068,7 +1050,9 @@ new function(){
// Use the defer script hack
var script = document.getElementById("__ie_init");
if (script) // script does not exist if jQuery is loaded dynamically
// script does not exist if jQuery is loaded dynamically
if ( script )
script.onreadystatechange = function() {
if ( this.readyState != "complete" ) return;
this.parentNode.removeChild( this );
@ -1079,7 +1063,7 @@ new function(){
script = null;
// If Safari is used
} else if ( jQuery.browser.safari ) {
} else if ( jQuery.browser.safari )
// Continually check to see if the document.readyState is valid
jQuery.safariTimer = setInterval(function(){
// loaded and complete are both valid states
@ -1094,7 +1078,6 @@ new function(){
jQuery.ready();
}
}, 10);
}
// A fallback to window.onload, that will always work
jQuery.event.add( window, "load", jQuery.ready );
@ -1102,10 +1085,14 @@ new function(){
};
// Clean up after IE to avoid memory leaks
if (jQuery.browser.msie) jQuery(window).unload(function() {
var event = jQuery.event, global = event.global;
for (var type in global) {
var els = global[type], i = els.length;
if (i>0) do if (type != 'unload') event.remove(els[i-1], type); while (--i);
}
});
if (jQuery.browser.msie)
jQuery(window).bind("unload", function() {
var global = jQuery.event.global;
for ( var type in global ) {
var els = global[type], i = els.length;
if ( i && type != 'unload' )
do
jQuery.event.remove(els[i-1], type);
while (--i);
}
});