diff options
author | David Serduke <davidserduke@gmail.com> | 2007-12-19 01:10:20 +0000 |
---|---|---|
committer | David Serduke <davidserduke@gmail.com> | 2007-12-19 01:10:20 +0000 |
commit | 1d7b7b94ef1c0c10cd5b2a976be40ccacbc49581 (patch) | |
tree | 1fa2cb6ae987c9b93174392a45b4ec76680bfb35 /src | |
parent | 7ef40fd19926c779086ae7d79796032708d568e0 (diff) | |
download | jquery-1d7b7b94ef1c0c10cd5b2a976be40ccacbc49581.tar.gz jquery-1d7b7b94ef1c0c10cd5b2a976be40ccacbc49581.zip |
Changed CRLF end of lines to just LF. Other than that there were no changes in this commit. Try svn diff -x --ignore-eol-style -r 4224:4225 to see that.
Diffstat (limited to 'src')
-rw-r--r-- | src/event.js | 1072 |
1 files changed, 536 insertions, 536 deletions
diff --git a/src/event.js b/src/event.js index 6a21fc3a6..02ed088c2 100644 --- a/src/event.js +++ b/src/event.js @@ -1,536 +1,536 @@ -/*
- * A number of helper functions used for managing events.
- * Many of the ideas behind this code orignated from
- * Dean Edwards' addEvent library.
- */
-jQuery.event = {
-
- // Bind an event to an element
- // Original by Dean Edwards
- add: function(elem, types, handler, data) {
- if ( elem.nodeType == 3 || elem.nodeType == 8 )
- return;
-
- // For whatever reason, IE has trouble passing the window object
- // around, causing it to be cloned in the process
- if ( jQuery.browser.msie && elem.setInterval != undefined )
- elem = window;
-
- // Make sure that the function being executed has a unique ID
- if ( !handler.guid )
- handler.guid = this.guid++;
-
- // if data is passed, bind to handler
- if( data != undefined ) {
- // Create temporary function pointer to original handler
- var fn = handler;
-
- // Create unique handler function, wrapped around original handler
- handler = function() {
- // Pass arguments and context to original handler
- return fn.apply(this, arguments);
- };
-
- // Store data in unique handler
- handler.data = data;
-
- // Set the guid of unique handler to the same of original handler, so it can be removed
- handler.guid = fn.guid;
- }
-
- // Init the element's event structure
- var events = jQuery.data(elem, "events") || jQuery.data(elem, "events", {}),
- handle = jQuery.data(elem, "handle") || jQuery.data(elem, "handle", function(){
- // returned undefined or false
- var val;
-
- // Handle the second event of a trigger and when
- // an event is called after a page has unloaded
- if ( typeof jQuery == "undefined" || jQuery.event.triggered )
- return val;
-
- val = jQuery.event.handle.apply(elem, arguments);
-
- return val;
- });
-
- // Handle multiple events seperated by a space
- // jQuery(...).bind("mouseover mouseout", fn);
- jQuery.each(types.split(/\s+/), function(index, type) {
- // Namespaced event handlers
- var parts = type.split(".");
- type = parts[0];
- handler.type = parts[1];
-
- // Get the current list of functions bound to this event
- var handlers = events[type];
-
- // Init the event handler queue
- if (!handlers) {
- handlers = events[type] = {};
-
- // Check for a special event handler
- // Only use addEventListener/attachEvent if the special
- // events handler returns false
- if ( !jQuery.event.special[type] || jQuery.event.special[type].setup.call(elem) === false ) {
- // Bind the global event handler to the element
- if (elem.addEventListener)
- elem.addEventListener(type, handle, false);
- else if (elem.attachEvent)
- elem.attachEvent("on" + type, handle);
- }
- }
-
- // Add the function to the element's handler list
- handlers[handler.guid] = handler;
-
- // Keep track of which events have been used, for global triggering
- jQuery.event.global[type] = true;
- });
- },
-
- guid: 1,
- global: {},
-
- // Detach an event or set of events from an element
- remove: function(elem, types, handler) {
- // don't do events on text and comment nodes
- if ( elem.nodeType == 3 || elem.nodeType == 8 )
- return;
-
- var events = jQuery.data(elem, "events"), ret, index;
-
- if ( events ) {
- // Unbind all events for the element
- if ( !types )
- for ( var type in events )
- this.remove( elem, type );
- else {
- // types is actually an event object here
- if ( types.type ) {
- handler = types.handler;
- types = types.type;
- }
-
- // Handle multiple events seperated by a space
- // jQuery(...).unbind("mouseover mouseout", fn);
- jQuery.each(types.split(/\s+/), function(index, type){
- // Namespaced event handlers
- var parts = type.split(".");
- type = parts[0];
-
- if ( events[type] ) {
- // remove the given handler for the given type
- if ( handler )
- delete events[type][handler.guid];
-
- // remove all handlers for the given type
- else
- for ( handler in events[type] )
- // Handle the removal of namespaced events
- if ( !parts[1] || events[type][handler].type == parts[1] )
- delete events[type][handler];
-
- // remove generic event handler if no more handlers exist
- for ( ret in events[type] ) break;
- if ( !ret ) {
- if ( !jQuery.event.special[type] || jQuery.event.special[type].teardown.call(elem) === false ) {
- if (elem.removeEventListener)
- elem.removeEventListener(type, jQuery.data(elem, "handle"), false);
- else if (elem.detachEvent)
- elem.detachEvent("on" + type, jQuery.data(elem, "handle"));
- }
- ret = null;
- delete events[type];
- }
- }
- });
- }
-
- // Remove the expando if it's no longer used
- for ( ret in events ) break;
- if ( !ret ) {
- jQuery.removeData( elem, "events" );
- jQuery.removeData( elem, "handle" );
- }
- }
- },
-
- trigger: function(type, data, elem, donative, extra) {
- // Clone the incoming data, if any
- data = jQuery.makeArray(data || []);
-
- // Handle a global trigger
- if ( !elem ) {
- // Only trigger if we've ever bound an event for it
- if ( this.global[type] )
- jQuery("*").add([window, document]).trigger(type, data);
-
- // Handle triggering a single element
- } else {
- // don't do events on text and comment nodes
- if ( elem.nodeType == 3 || elem.nodeType == 8 )
- return undefined;
-
- var val, ret, fn = jQuery.isFunction( elem[ type ] || null ),
- // Check to see if we need to provide a fake event, or not
- event = !data[0] || !data[0].preventDefault;
-
- // Pass along a fake event
- if ( event )
- data.unshift( this.fix({ type: type, target: elem }) );
-
- // Enforce the right trigger type
- data[0].type = type;
-
- // Trigger the event
- if ( jQuery.isFunction( jQuery.data(elem, "handle") ) )
- val = jQuery.data(elem, "handle").apply( elem, data );
-
- // Handle triggering native .onfoo handlers
- if ( !fn && elem["on"+type] && elem["on"+type].apply( elem, data ) === false )
- val = false;
-
- // Extra functions don't get the custom event object
- if ( event )
- data.shift();
-
- // Handle triggering of extra function
- if ( extra && jQuery.isFunction( extra ) ) {
- // call the extra function and tack the current return value on the end for possible inspection
- var ret = extra.apply( elem, data.concat( val ) );
- // if anything is returned, give it precedence and have it overwrite the previous value
- if (ret !== undefined)
- val = ret;
- }
-
- // Trigger the native events (except for clicks on links)
- if ( fn && donative !== false && val !== false && !(jQuery.nodeName(elem, 'a') && type == "click") ) {
- this.triggered = true;
- try {
- elem[ type ]();
- // prevent IE from throwing an error for some hidden elements
- } catch (e) {}
- }
-
- this.triggered = false;
- }
-
- return val;
- },
-
- handle: function(event) {
- // returned undefined or false
- var val;
-
- // Empty object is for triggered events with no data
- event = jQuery.event.fix( event || window.event || {} );
-
- // Namespaced event handlers
- var parts = event.type.split(".");
- event.type = parts[0];
-
- var handlers = jQuery.data(this, "events") && jQuery.data(this, "events")[event.type], args = Array.prototype.slice.call( arguments, 1 );
- args.unshift( event );
-
- for ( var j in handlers ) {
- var handler = handlers[j];
- // Pass in a reference to the handler function itself
- // So that we can later remove it
- args[0].handler = handler;
- args[0].data = handler.data;
-
- // Filter the functions by class
- if ( !parts[1] || handler.type == parts[1] ) {
- var ret = handler.apply( this, args );
-
- if ( val !== false )
- val = ret;
-
- if ( ret === false ) {
- event.preventDefault();
- event.stopPropagation();
- }
- }
- }
-
- // Clean up added properties in IE to prevent memory leak
- if (jQuery.browser.msie)
- event.target = event.preventDefault = event.stopPropagation =
- event.handler = event.data = null;
-
- return val;
- },
-
- fix: function(event) {
- // store a copy of the original event object
- // and clone to set read-only properties
- var originalEvent = event;
- event = jQuery.extend({}, originalEvent);
-
- // add preventDefault and stopPropagation since
- // they will not work on the clone
- event.preventDefault = function() {
- // if preventDefault exists run it on the original event
- if (originalEvent.preventDefault)
- originalEvent.preventDefault();
- // otherwise set the returnValue property of the original event to false (IE)
- originalEvent.returnValue = false;
- };
- event.stopPropagation = function() {
- // if stopPropagation exists run it on the original event
- if (originalEvent.stopPropagation)
- originalEvent.stopPropagation();
- // otherwise set the cancelBubble property of the original event to true (IE)
- originalEvent.cancelBubble = true;
- };
-
- // Fix target property, if necessary
- if ( !event.target )
- event.target = event.srcElement || document; // Fixes #1925 where srcElement might not be defined either
-
- // check if target is a textnode (safari)
- if ( event.target.nodeType == 3 )
- event.target = originalEvent.target.parentNode;
-
- // Add relatedTarget, if necessary
- if ( !event.relatedTarget && event.fromElement )
- event.relatedTarget = event.fromElement == event.target ? event.toElement : event.fromElement;
-
- // Calculate pageX/Y if missing and clientX/Y available
- if ( event.pageX == null && event.clientX != null ) {
- var doc = document.documentElement, body = document.body;
- event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc.clientLeft || 0);
- event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc.clientTop || 0);
- }
-
- // Add which for key events
- if ( !event.which && (event.charCode || event.keyCode) )
- event.which = event.charCode || event.keyCode;
-
- // Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs)
- if ( !event.metaKey && event.ctrlKey )
- event.metaKey = event.ctrlKey;
-
- // Add which for click: 1 == left; 2 == middle; 3 == right
- // Note: button is not normalized, so don't use it
- if ( !event.which && event.button )
- event.which = (event.button & 1 ? 1 : ( event.button & 2 ? 3 : ( event.button & 4 ? 2 : 0 ) ));
-
- return event;
- },
-
- special: {
- ready: {
- setup: function() {
- // Make sure the ready event is setup
- bindReady();
- return;
- },
-
- teardown: function() { return; }
- },
-
- mouseenter: {
- setup: function() {
- if ( jQuery.browser.msie ) return false;
- jQuery(this).bind("mouseover", jQuery.event.special.mouseenter.handler);
- return true;
- },
-
- teardown: function() {
- if ( jQuery.browser.msie ) return false;
- jQuery(this).unbind("mouseover", jQuery.event.special.mouseenter.handler);
- return true;
- },
-
- handler: function(event) {
- // If we actually just moused on to a sub-element, ignore it
- if ( withinElement(event, this) ) return true;
- // Execute the right handlers by setting the event type to mouseenter
- arguments[0].type = "mouseenter";
- return jQuery.event.handle.apply(this, arguments);
- }
- },
-
- mouseleave: {
- setup: function() {
- if ( jQuery.browser.msie ) return false;
- jQuery(this).bind("mouseout", jQuery.event.special.mouseleave.handler);
- return true;
- },
-
- teardown: function() {
- if ( jQuery.browser.msie ) return false;
- jQuery(this).unbind("mouseout", jQuery.event.special.mouseleave.handler);
- return true;
- },
-
- handler: function(event) {
- // If we actually just moused on to a sub-element, ignore it
- if ( withinElement(event, this) ) return true;
- // Execute the right handlers by setting the event type to mouseleave
- arguments[0].type = "mouseleave";
- return jQuery.event.handle.apply(this, arguments);
- }
- }
- }
-};
-
-jQuery.fn.extend({
- bind: function( type, data, fn ) {
- return type == "unload" ? this.one(type, data, fn) : this.each(function(){
- jQuery.event.add( this, type, fn || data, fn && data );
- });
- },
-
- one: function( type, data, fn ) {
- return this.each(function(){
- jQuery.event.add( this, type, function(event) {
- jQuery(this).unbind(event);
- return (fn || data).apply( this, arguments);
- }, fn && data);
- });
- },
-
- unbind: function( type, fn ) {
- return this.each(function(){
- jQuery.event.remove( this, type, fn );
- });
- },
-
- trigger: function( type, data, fn ) {
- return this.each(function(){
- jQuery.event.trigger( type, data, this, true, fn );
- });
- },
-
- triggerHandler: function( type, data, fn ) {
- if ( this[0] )
- return jQuery.event.trigger( type, data, this[0], false, fn );
- return undefined;
- },
-
- toggle: function() {
- // Save reference to arguments for access in closure
- var args = arguments;
-
- return this.click(function(event) {
- // Figure out which function to execute
- this.lastToggle = 0 == this.lastToggle ? 1 : 0;
-
- // Make sure that clicks stop
- event.preventDefault();
-
- // and execute the function
- return args[this.lastToggle].apply( this, arguments ) || false;
- });
- },
-
- hover: function(fnOver, fnOut) {
- return this.bind('mouseenter', fnOver).bind('mouseleave', fnOut);
- },
-
- ready: function(fn) {
- // Attach the listeners
- bindReady();
-
- // If the DOM is already ready
- if ( jQuery.isReady )
- // Execute the function immediately
- fn.call( document, jQuery );
-
- // Otherwise, remember the function for later
- else
- // Add the function to the wait list
- jQuery.readyList.push( function() { return fn.call(this, jQuery); } );
-
- return this;
- }
-});
-
-jQuery.extend({
- isReady: false,
- readyList: [],
- // Handle when the DOM is ready
- ready: function() {
- // Make sure that the DOM is not already loaded
- if ( !jQuery.isReady ) {
- // Remember that the DOM is ready
- jQuery.isReady = true;
-
- // If there are functions bound, to execute
- if ( jQuery.readyList ) {
- // Execute all of them
- jQuery.each( jQuery.readyList, function(){
- this.apply( document );
- });
-
- // Reset the list of functions
- jQuery.readyList = null;
- }
-
- // Trigger any bound ready events
- $(document).triggerHandler("ready");
- }
- }
-});
-
-var readyBound = false;
-
-function bindReady(){
- if ( readyBound ) return;
- readyBound = true;
-
- // Mozilla, Opera and webkit nightlies currently support this event
- if ( document.addEventListener )
- // Use the handy event callback
- document.addEventListener( "DOMContentLoaded", jQuery.ready, false );
-
- // If Safari or IE is used
- // Continually check to see if the document is ready
- if (jQuery.browser.msie || jQuery.browser.safari ) (function(){
- try {
- // If IE is used, use the trick by Diego Perini
- // http://javascript.nwbox.com/IEContentLoaded/
- if ( jQuery.browser.msie || document.readyState != "loaded" && document.readyState != "complete" )
- document.documentElement.doScroll("left");
- } catch( error ) {
- return setTimeout( arguments.callee, 0 );
- }
-
- // and execute any waiting functions
- jQuery.ready();
- })();
-
- // A fallback to window.onload, that will always work
- jQuery.event.add( window, "load", jQuery.ready );
-}
-
-jQuery.each( ("blur,focus,load,resize,scroll,unload,click,dblclick," +
- "mousedown,mouseup,mousemove,mouseover,mouseout,change,select," +
- "submit,keydown,keypress,keyup,error").split(","), function(i, name){
-
- // Handle event binding
- jQuery.fn[name] = function(fn){
- return fn ? this.bind(name, fn) : this.trigger(name);
- };
-});
-
-// Checks if an event happened on an element within another element
-// Used in jQuery.event.special.mouseenter and mouseleave handlers
-var withinElement = function(event, elem) {
- // Check if mouse(over|out) are still within the same parent element
- var parent = event.relatedTarget;
- // Traverse up the tree
- while ( parent && parent != elem ) try { parent = parent.parentNode } catch(error) { parent = elem; };
- // Return true if we actually just moused on to a sub-element
- return parent == elem;
-};
-
-// Prevent memory leaks in IE
-// And prevent errors on refresh with events like mouseover in other browsers
-// Window isn't included so as not to unbind existing unload events
-jQuery(window).bind("unload", function() {
- jQuery("*").add(document).unbind();
-});
+/* + * A number of helper functions used for managing events. + * Many of the ideas behind this code orignated from + * Dean Edwards' addEvent library. + */ +jQuery.event = { + + // Bind an event to an element + // Original by Dean Edwards + add: function(elem, types, handler, data) { + if ( elem.nodeType == 3 || elem.nodeType == 8 ) + return; + + // For whatever reason, IE has trouble passing the window object + // around, causing it to be cloned in the process + if ( jQuery.browser.msie && elem.setInterval != undefined ) + elem = window; + + // Make sure that the function being executed has a unique ID + if ( !handler.guid ) + handler.guid = this.guid++; + + // if data is passed, bind to handler + if( data != undefined ) { + // Create temporary function pointer to original handler + var fn = handler; + + // Create unique handler function, wrapped around original handler + handler = function() { + // Pass arguments and context to original handler + return fn.apply(this, arguments); + }; + + // Store data in unique handler + handler.data = data; + + // Set the guid of unique handler to the same of original handler, so it can be removed + handler.guid = fn.guid; + } + + // Init the element's event structure + var events = jQuery.data(elem, "events") || jQuery.data(elem, "events", {}), + handle = jQuery.data(elem, "handle") || jQuery.data(elem, "handle", function(){ + // returned undefined or false + var val; + + // Handle the second event of a trigger and when + // an event is called after a page has unloaded + if ( typeof jQuery == "undefined" || jQuery.event.triggered ) + return val; + + val = jQuery.event.handle.apply(elem, arguments); + + return val; + }); + + // Handle multiple events seperated by a space + // jQuery(...).bind("mouseover mouseout", fn); + jQuery.each(types.split(/\s+/), function(index, type) { + // Namespaced event handlers + var parts = type.split("."); + type = parts[0]; + handler.type = parts[1]; + + // Get the current list of functions bound to this event + var handlers = events[type]; + + // Init the event handler queue + if (!handlers) { + handlers = events[type] = {}; + + // Check for a special event handler + // Only use addEventListener/attachEvent if the special + // events handler returns false + if ( !jQuery.event.special[type] || jQuery.event.special[type].setup.call(elem) === false ) { + // Bind the global event handler to the element + if (elem.addEventListener) + elem.addEventListener(type, handle, false); + else if (elem.attachEvent) + elem.attachEvent("on" + type, handle); + } + } + + // Add the function to the element's handler list + handlers[handler.guid] = handler; + + // Keep track of which events have been used, for global triggering + jQuery.event.global[type] = true; + }); + }, + + guid: 1, + global: {}, + + // Detach an event or set of events from an element + remove: function(elem, types, handler) { + // don't do events on text and comment nodes + if ( elem.nodeType == 3 || elem.nodeType == 8 ) + return; + + var events = jQuery.data(elem, "events"), ret, index; + + if ( events ) { + // Unbind all events for the element + if ( !types ) + for ( var type in events ) + this.remove( elem, type ); + else { + // types is actually an event object here + if ( types.type ) { + handler = types.handler; + types = types.type; + } + + // Handle multiple events seperated by a space + // jQuery(...).unbind("mouseover mouseout", fn); + jQuery.each(types.split(/\s+/), function(index, type){ + // Namespaced event handlers + var parts = type.split("."); + type = parts[0]; + + if ( events[type] ) { + // remove the given handler for the given type + if ( handler ) + delete events[type][handler.guid]; + + // remove all handlers for the given type + else + for ( handler in events[type] ) + // Handle the removal of namespaced events + if ( !parts[1] || events[type][handler].type == parts[1] ) + delete events[type][handler]; + + // remove generic event handler if no more handlers exist + for ( ret in events[type] ) break; + if ( !ret ) { + if ( !jQuery.event.special[type] || jQuery.event.special[type].teardown.call(elem) === false ) { + if (elem.removeEventListener) + elem.removeEventListener(type, jQuery.data(elem, "handle"), false); + else if (elem.detachEvent) + elem.detachEvent("on" + type, jQuery.data(elem, "handle")); + } + ret = null; + delete events[type]; + } + } + }); + } + + // Remove the expando if it's no longer used + for ( ret in events ) break; + if ( !ret ) { + jQuery.removeData( elem, "events" ); + jQuery.removeData( elem, "handle" ); + } + } + }, + + trigger: function(type, data, elem, donative, extra) { + // Clone the incoming data, if any + data = jQuery.makeArray(data || []); + + // Handle a global trigger + if ( !elem ) { + // Only trigger if we've ever bound an event for it + if ( this.global[type] ) + jQuery("*").add([window, document]).trigger(type, data); + + // Handle triggering a single element + } else { + // don't do events on text and comment nodes + if ( elem.nodeType == 3 || elem.nodeType == 8 ) + return undefined; + + var val, ret, fn = jQuery.isFunction( elem[ type ] || null ), + // Check to see if we need to provide a fake event, or not + event = !data[0] || !data[0].preventDefault; + + // Pass along a fake event + if ( event ) + data.unshift( this.fix({ type: type, target: elem }) ); + + // Enforce the right trigger type + data[0].type = type; + + // Trigger the event + if ( jQuery.isFunction( jQuery.data(elem, "handle") ) ) + val = jQuery.data(elem, "handle").apply( elem, data ); + + // Handle triggering native .onfoo handlers + if ( !fn && elem["on"+type] && elem["on"+type].apply( elem, data ) === false ) + val = false; + + // Extra functions don't get the custom event object + if ( event ) + data.shift(); + + // Handle triggering of extra function + if ( extra && jQuery.isFunction( extra ) ) { + // call the extra function and tack the current return value on the end for possible inspection + var ret = extra.apply( elem, data.concat( val ) ); + // if anything is returned, give it precedence and have it overwrite the previous value + if (ret !== undefined) + val = ret; + } + + // Trigger the native events (except for clicks on links) + if ( fn && donative !== false && val !== false && !(jQuery.nodeName(elem, 'a') && type == "click") ) { + this.triggered = true; + try { + elem[ type ](); + // prevent IE from throwing an error for some hidden elements + } catch (e) {} + } + + this.triggered = false; + } + + return val; + }, + + handle: function(event) { + // returned undefined or false + var val; + + // Empty object is for triggered events with no data + event = jQuery.event.fix( event || window.event || {} ); + + // Namespaced event handlers + var parts = event.type.split("."); + event.type = parts[0]; + + var handlers = jQuery.data(this, "events") && jQuery.data(this, "events")[event.type], args = Array.prototype.slice.call( arguments, 1 ); + args.unshift( event ); + + for ( var j in handlers ) { + var handler = handlers[j]; + // Pass in a reference to the handler function itself + // So that we can later remove it + args[0].handler = handler; + args[0].data = handler.data; + + // Filter the functions by class + if ( !parts[1] || handler.type == parts[1] ) { + var ret = handler.apply( this, args ); + + if ( val !== false ) + val = ret; + + if ( ret === false ) { + event.preventDefault(); + event.stopPropagation(); + } + } + } + + // Clean up added properties in IE to prevent memory leak + if (jQuery.browser.msie) + event.target = event.preventDefault = event.stopPropagation = + event.handler = event.data = null; + + return val; + }, + + fix: function(event) { + // store a copy of the original event object + // and clone to set read-only properties + var originalEvent = event; + event = jQuery.extend({}, originalEvent); + + // add preventDefault and stopPropagation since + // they will not work on the clone + event.preventDefault = function() { + // if preventDefault exists run it on the original event + if (originalEvent.preventDefault) + originalEvent.preventDefault(); + // otherwise set the returnValue property of the original event to false (IE) + originalEvent.returnValue = false; + }; + event.stopPropagation = function() { + // if stopPropagation exists run it on the original event + if (originalEvent.stopPropagation) + originalEvent.stopPropagation(); + // otherwise set the cancelBubble property of the original event to true (IE) + originalEvent.cancelBubble = true; + }; + + // Fix target property, if necessary + if ( !event.target ) + event.target = event.srcElement || document; // Fixes #1925 where srcElement might not be defined either + + // check if target is a textnode (safari) + if ( event.target.nodeType == 3 ) + event.target = originalEvent.target.parentNode; + + // Add relatedTarget, if necessary + if ( !event.relatedTarget && event.fromElement ) + event.relatedTarget = event.fromElement == event.target ? event.toElement : event.fromElement; + + // Calculate pageX/Y if missing and clientX/Y available + if ( event.pageX == null && event.clientX != null ) { + var doc = document.documentElement, body = document.body; + event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc.clientLeft || 0); + event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc.clientTop || 0); + } + + // Add which for key events + if ( !event.which && (event.charCode || event.keyCode) ) + event.which = event.charCode || event.keyCode; + + // Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs) + if ( !event.metaKey && event.ctrlKey ) + event.metaKey = event.ctrlKey; + + // Add which for click: 1 == left; 2 == middle; 3 == right + // Note: button is not normalized, so don't use it + if ( !event.which && event.button ) + event.which = (event.button & 1 ? 1 : ( event.button & 2 ? 3 : ( event.button & 4 ? 2 : 0 ) )); + + return event; + }, + + special: { + ready: { + setup: function() { + // Make sure the ready event is setup + bindReady(); + return; + }, + + teardown: function() { return; } + }, + + mouseenter: { + setup: function() { + if ( jQuery.browser.msie ) return false; + jQuery(this).bind("mouseover", jQuery.event.special.mouseenter.handler); + return true; + }, + + teardown: function() { + if ( jQuery.browser.msie ) return false; + jQuery(this).unbind("mouseover", jQuery.event.special.mouseenter.handler); + return true; + }, + + handler: function(event) { + // If we actually just moused on to a sub-element, ignore it + if ( withinElement(event, this) ) return true; + // Execute the right handlers by setting the event type to mouseenter + arguments[0].type = "mouseenter"; + return jQuery.event.handle.apply(this, arguments); + } + }, + + mouseleave: { + setup: function() { + if ( jQuery.browser.msie ) return false; + jQuery(this).bind("mouseout", jQuery.event.special.mouseleave.handler); + return true; + }, + + teardown: function() { + if ( jQuery.browser.msie ) return false; + jQuery(this).unbind("mouseout", jQuery.event.special.mouseleave.handler); + return true; + }, + + handler: function(event) { + // If we actually just moused on to a sub-element, ignore it + if ( withinElement(event, this) ) return true; + // Execute the right handlers by setting the event type to mouseleave + arguments[0].type = "mouseleave"; + return jQuery.event.handle.apply(this, arguments); + } + } + } +}; + +jQuery.fn.extend({ + bind: function( type, data, fn ) { + return type == "unload" ? this.one(type, data, fn) : this.each(function(){ + jQuery.event.add( this, type, fn || data, fn && data ); + }); + }, + + one: function( type, data, fn ) { + return this.each(function(){ + jQuery.event.add( this, type, function(event) { + jQuery(this).unbind(event); + return (fn || data).apply( this, arguments); + }, fn && data); + }); + }, + + unbind: function( type, fn ) { + return this.each(function(){ + jQuery.event.remove( this, type, fn ); + }); + }, + + trigger: function( type, data, fn ) { + return this.each(function(){ + jQuery.event.trigger( type, data, this, true, fn ); + }); + }, + + triggerHandler: function( type, data, fn ) { + if ( this[0] ) + return jQuery.event.trigger( type, data, this[0], false, fn ); + return undefined; + }, + + toggle: function() { + // Save reference to arguments for access in closure + var args = arguments; + + return this.click(function(event) { + // Figure out which function to execute + this.lastToggle = 0 == this.lastToggle ? 1 : 0; + + // Make sure that clicks stop + event.preventDefault(); + + // and execute the function + return args[this.lastToggle].apply( this, arguments ) || false; + }); + }, + + hover: function(fnOver, fnOut) { + return this.bind('mouseenter', fnOver).bind('mouseleave', fnOut); + }, + + ready: function(fn) { + // Attach the listeners + bindReady(); + + // If the DOM is already ready + if ( jQuery.isReady ) + // Execute the function immediately + fn.call( document, jQuery ); + + // Otherwise, remember the function for later + else + // Add the function to the wait list + jQuery.readyList.push( function() { return fn.call(this, jQuery); } ); + + return this; + } +}); + +jQuery.extend({ + isReady: false, + readyList: [], + // Handle when the DOM is ready + ready: function() { + // Make sure that the DOM is not already loaded + if ( !jQuery.isReady ) { + // Remember that the DOM is ready + jQuery.isReady = true; + + // If there are functions bound, to execute + if ( jQuery.readyList ) { + // Execute all of them + jQuery.each( jQuery.readyList, function(){ + this.apply( document ); + }); + + // Reset the list of functions + jQuery.readyList = null; + } + + // Trigger any bound ready events + $(document).triggerHandler("ready"); + } + } +}); + +var readyBound = false; + +function bindReady(){ + if ( readyBound ) return; + readyBound = true; + + // Mozilla, Opera and webkit nightlies currently support this event + if ( document.addEventListener ) + // Use the handy event callback + document.addEventListener( "DOMContentLoaded", jQuery.ready, false ); + + // If Safari or IE is used + // Continually check to see if the document is ready + if (jQuery.browser.msie || jQuery.browser.safari ) (function(){ + try { + // If IE is used, use the trick by Diego Perini + // http://javascript.nwbox.com/IEContentLoaded/ + if ( jQuery.browser.msie || document.readyState != "loaded" && document.readyState != "complete" ) + document.documentElement.doScroll("left"); + } catch( error ) { + return setTimeout( arguments.callee, 0 ); + } + + // and execute any waiting functions + jQuery.ready(); + })(); + + // A fallback to window.onload, that will always work + jQuery.event.add( window, "load", jQuery.ready ); +} + +jQuery.each( ("blur,focus,load,resize,scroll,unload,click,dblclick," + + "mousedown,mouseup,mousemove,mouseover,mouseout,change,select," + + "submit,keydown,keypress,keyup,error").split(","), function(i, name){ + + // Handle event binding + jQuery.fn[name] = function(fn){ + return fn ? this.bind(name, fn) : this.trigger(name); + }; +}); + +// Checks if an event happened on an element within another element +// Used in jQuery.event.special.mouseenter and mouseleave handlers +var withinElement = function(event, elem) { + // Check if mouse(over|out) are still within the same parent element + var parent = event.relatedTarget; + // Traverse up the tree + while ( parent && parent != elem ) try { parent = parent.parentNode } catch(error) { parent = elem; }; + // Return true if we actually just moused on to a sub-element + return parent == elem; +}; + +// Prevent memory leaks in IE +// And prevent errors on refresh with events like mouseover in other browsers +// Window isn't included so as not to unbind existing unload events +jQuery(window).bind("unload", function() { + jQuery("*").add(document).unbind(); +}); |