// Bind an event to an element
// Original by Dean Edwards
- add: function(element, types, handler, data) {
- if ( element.nodeType == 3 || element.nodeType == 8 )
+ 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 && element.setInterval != undefined )
- element = window;
+ if ( jQuery.browser.msie && elem.setInterval != undefined )
+ elem = window;
// Make sure that the function being executed has a unique ID
if ( !handler.guid )
}
// Init the element's event structure
- var events = jQuery.data(element, "events") || jQuery.data(element, "events", {}),
- handle = jQuery.data(element, "handle") || jQuery.data(element, "handle", function(){
- // returned undefined or false
- var val;
-
+ var events = jQuery.data(elem, "events") || jQuery.data(elem, "events", {}),
+ handle = jQuery.data(elem, "handle") || jQuery.data(elem, "handle", function(){
// 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(element, arguments);
-
- return val;
+ if ( typeof jQuery != "undefined" && !jQuery.event.triggered )
+ return jQuery.event.handle.apply(arguments.callee.elem, arguments);
});
+ // Add elem as a property of the handle function
+ // This is to prevent a memory leak with non-native
+ // event in IE.
+ handle.elem = elem;
// Handle multiple events seperated by a space
// jQuery(...).bind("mouseover mouseout", fn);
// 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(element) === false ) {
+ if ( !jQuery.event.special[type] || jQuery.event.special[type].setup.call(elem) === false ) {
// Bind the global event handler to the element
- if (element.addEventListener)
- element.addEventListener(type, handle, false);
- else if (element.attachEvent)
- element.attachEvent("on" + type, handle);
+ if (elem.addEventListener)
+ elem.addEventListener(type, handle, false);
+ else if (elem.attachEvent)
+ elem.attachEvent("on" + type, handle);
}
}
// Keep track of which events have been used, for global triggering
jQuery.event.global[type] = true;
});
+
+ // Nullify elem to prevent memory leaks in IE
+ elem = null;
},
guid: 1,
global: {},
// Detach an event or set of events from an element
- remove: function(element, types, handler) {
+ remove: function(elem, types, handler) {
// don't do events on text and comment nodes
- if ( element.nodeType == 3 || element.nodeType == 8 )
+ if ( elem.nodeType == 3 || elem.nodeType == 8 )
return;
- var events = jQuery.data(element, "events"), ret, index;
+ var events = jQuery.data(elem, "events"), ret, index;
if ( events ) {
// Unbind all events for the element
- if ( !types )
+ if ( types == undefined || (typeof types == "string" && types.charAt(0) == ".") )
for ( var type in events )
- this.remove( element, type );
+ this.remove( elem, type + (types || "") );
else {
// types is actually an event object here
if ( types.type ) {
// 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(this, element) === false ) {
- if (element.removeEventListener)
- element.removeEventListener(type, jQuery.data(element, "handle"), false);
- else if (element.detachEvent)
- element.detachEvent("on" + type, jQuery.data(element, "handle"));
+ 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( element, "events" );
- jQuery.removeData( element, "handle" );
+ var handle = jQuery.data( elem, "handle" );
+ if ( handle ) handle.elem = null;
+ jQuery.removeData( elem, "events" );
+ jQuery.removeData( elem, "handle" );
}
}
},
- trigger: function(type, data, element, donative, extra) {
+ trigger: function(type, data, elem, donative, extra) {
// Clone the incoming data, if any
- data = jQuery.makeArray(data || []);
+ data = jQuery.makeArray(data);
+
+ if ( type.indexOf("!") >= 0 ) {
+ type = type.slice(0, -1);
+ var exclusive = true;
+ }
// Handle a global trigger
- if ( !element ) {
+ 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 ( element.nodeType == 3 || element.nodeType == 8 )
+ if ( elem.nodeType == 3 || elem.nodeType == 8 )
return undefined;
- var val, ret, fn = jQuery.isFunction( element[ type ] || null ),
+ 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: element }) );
+ if ( event ) {
+ data.unshift({
+ type: type,
+ target: elem,
+ preventDefault: function(){},
+ stopPropagation: function(){},
+ timeStamp: +new Date
+ });
+ data[0][expando] = true; // no need to fix fake event
+ }
// Enforce the right trigger type
data[0].type = type;
+ if ( exclusive )
+ data[0].exclusive = true;
- // Trigger the event
- if ( jQuery.isFunction( jQuery.data(element, "handle") ) )
- val = jQuery.data(element, "handle").apply( element, data );
+ // Trigger the event, it is assumed that "handle" is a function
+ var handle = jQuery.data(elem, "handle");
+ if ( handle )
+ val = handle.apply( elem, data );
- // Handle triggering native .onfoo handlers
- if ( !fn && element["on"+type] && element["on"+type].apply( element, data ) === false )
+ // Handle triggering native .onfoo handlers (and on links since we don't call .click() for links)
+ if ( (!fn || (jQuery.nodeName(elem, 'a') && type == "click")) && elem["on"+type] && elem["on"+type].apply( elem, data ) === false )
val = false;
// Extra functions don't get the custom event object
data.shift();
// Handle triggering of extra function
- if ( extra ) {
+ 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( element, data.concat( val ) );
+ ret = extra.apply( elem, val == null ? data : 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(element, 'a') && type == "click") ) {
+ if ( fn && donative !== false && val !== false && !(jQuery.nodeName(elem, 'a') && type == "click") ) {
this.triggered = true;
try {
- element[ type ]();
+ elem[ type ]();
// prevent IE from throwing an error for some hidden elements
} catch (e) {}
}
handle: function(event) {
// returned undefined or false
- var val;
+ var val, ret, namespace, all, handlers;
- // Empty object is for triggered events with no data
- event = jQuery.event.fix( event || window.event || {} );
+ event = arguments[0] = jQuery.event.fix( event || window.event );
// Namespaced event handlers
- var parts = event.type.split(".");
- event.type = parts[0];
+ namespace = event.type.split(".");
+ event.type = namespace[0];
+ namespace = namespace[1];
+ all = !namespace && !event.exclusive; //cache this now, all = true means, any handler
- var handlers = jQuery.data(this, "events") && jQuery.data(this, "events")[event.type], args = Array.prototype.slice.call( arguments, 1 );
- args.unshift( event );
+ handlers = ( jQuery.data(this, "events") || {} )[event.type];
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 ( all || handler.type == namespace ) {
+ // Pass in a reference to the handler function itself
+ // So that we can later remove it
+ event.handler = handler;
+ event.data = handler.data;
+
+ ret = handler.apply( this, arguments );
if ( val !== false )
val = ret;
}
}
- // 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) {
+ if ( event[expando] == true )
+ return event;
+
// store a copy of the original event object
- // and clone to set read-only properties
+ // and "clone" to set read-only properties
var originalEvent = event;
- event = jQuery.extend({}, originalEvent);
+ event = { originalEvent: originalEvent };
+ var props = "altKey attrChange attrName bubbles button cancelable charCode clientX clientY ctrlKey currentTarget data detail eventPhase fromElement handler keyCode metaKey newValue pageX pageY prevValue relatedNode relatedTarget screenX screenY shiftKey srcElement target timeStamp toElement type view wheelDelta which".split(" ");
+ for ( var i=props.length; i; i-- )
+ event[ props[i] ] = originalEvent[ props[i] ];
+
+ // Mark it as fixed
+ event[expando] = true;
// add preventDefault and stopPropagation since
// they will not work on the clone
originalEvent.cancelBubble = true;
};
+ // Fix timeStamp
+ event.timeStamp = event.timeStamp || +new Date;
+
// 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;
+ event.target = event.target.parentNode;
// Add relatedTarget, if necessary
if ( !event.relatedTarget && event.fromElement )
}
// Add which for key events
- if ( !event.which && (event.charCode || event.keyCode) )
+ if ( !event.which && ((event.charCode || event.charCode === 0) ? 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)
special: {
ready: {
setup: function() {
- var handler = jQuery.event.special.ready.handler;
-
- // Mozilla, Opera and webkit nightlies currently support this event
- if ( document.addEventListener )
- // Use the handy event callback
- document.addEventListener( "DOMContentLoaded", handler, 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 ) {
- setTimeout( arguments.callee, 0 );
- return;
- }
-
- // and execute any waiting functions
- handler();
- })();
-
- // A fallback to window.onload, that will always work
- jQuery.event.add( window, "load", handler );
+ // Make sure the ready event is setup
+ bindReady();
+ return;
},
- teardown: function() {return;},
-
- handler: function() {
- // Make sure that the DOM is not already loaded
- if ( !jQuery.isReady ) {
- // Remember that the DOM is ready
- jQuery.isReady = true;
- jQuery(document).triggerHandler("ready");
- jQuery(document).unbind("ready");
- }
- }
+ teardown: function() { return; }
},
mouseenter: {
setup: function() {
- if (jQuery.browser.msie) return false;
- jQuery(this).bind('mouseover', jQuery.event.special.mouseenter.handler);
+ 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);
+ if ( jQuery.browser.msie ) return false;
+ jQuery(this).unbind("mouseover", jQuery.event.special.mouseenter.handler);
return true;
},
handler: function(event) {
- var args = Array.prototype.slice.call( arguments, 1 );
// 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
- event.type = 'mouseenter';
- // Include the event object as the first argument
- args.unshift(event);
- var val = jQuery.event.handle.apply(this, args);
- return val;
+ 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);
+ 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);
+ if ( jQuery.browser.msie ) return false;
+ jQuery(this).unbind("mouseout", jQuery.event.special.mouseleave.handler);
return true;
},
handler: function(event) {
- var args = Array.prototype.slice.call( arguments, 1 );
// 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
- event.type = 'mouseleave';
- // Include the event object as the first argument
- args.unshift(event);
- var val = jQuery.event.handle.apply(this, args);
- return val;
+ arguments[0].type = "mouseleave";
+ return jQuery.event.handle.apply(this, arguments);
}
}
}
return this.click(function(event) {
// Figure out which function to execute
- this.lastToggle = 0 == this.lastToggle ? 1 : 0;
+ this.lastToggle = ( this.lastToggle || 0 ) % args.length;
// Make sure that clicks stop
event.preventDefault();
// and execute the function
- return args[this.lastToggle].apply( this, arguments ) || false;
+ 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
+ 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
+ jQuery(document).triggerHandler("ready");
+ }
+ }
});
-jQuery.each( ("blur,focus,load,ready,resize,scroll,unload,click,dblclick," +
+var readyBound = false;
+
+function bindReady(){
+ if ( readyBound ) return;
+ readyBound = true;
+
+ // Mozilla, Opera (see further below for it) and webkit nightlies currently support this event
+ if ( document.addEventListener && !jQuery.browser.opera)
+ // Use the handy event callback
+ document.addEventListener( "DOMContentLoaded", jQuery.ready, false );
+
+ // If IE is used and is not in a frame
+ // Continually check to see if the document is ready
+ if ( jQuery.browser.msie && window == top ) (function(){
+ if (jQuery.isReady) return;
+ try {
+ // If IE is used, use the trick by Diego Perini
+ // http://javascript.nwbox.com/IEContentLoaded/
+ document.documentElement.doScroll("left");
+ } catch( error ) {
+ setTimeout( arguments.callee, 0 );
+ return;
+ }
+ // and execute any waiting functions
+ jQuery.ready();
+ })();
+
+ if ( jQuery.browser.opera )
+ document.addEventListener( "DOMContentLoaded", function () {
+ if (jQuery.isReady) return;
+ for (var i = 0; i < document.styleSheets.length; i++)
+ if (document.styleSheets[i].disabled) {
+ setTimeout( arguments.callee, 0 );
+ return;
+ }
+ // and execute any waiting functions
+ jQuery.ready();
+ }, false);
+
+ if ( jQuery.browser.safari ) {
+ var numStyles;
+ (function(){
+ if (jQuery.isReady) return;
+ if ( document.readyState != "loaded" && document.readyState != "complete" ) {
+ setTimeout( arguments.callee, 0 );
+ return;
+ }
+ if ( numStyles === undefined )
+ numStyles = jQuery("style, link[rel=stylesheet]").length;
+ if ( document.styleSheets.length != numStyles ) {
+ setTimeout( arguments.callee, 0 );
+ return;
+ }
+ // 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){
// Checks if an event happened on an element within another element
// Used in jQuery.event.special.mouseenter and mouseleave handlers
-var withinElement = function(event, element) {
+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 != element ) try { parent = parent.parentNode } catch(error) { parent = element; };
+ 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 == element;
+ return parent == elem;
};
// Prevent memory leaks in IE
git.asbjorn.biz / jquery.git / blobdiff