Make sure that mousing over Chrome "internal div" elements results in no trigger...
[jquery.git] / src / event.js
index 45f2202..a17cf89 100644 (file)
@@ -1,8 +1,12 @@
+(function( jQuery ) {
+
 var rnamespaces = /\.(.*)$/,
+       rformElems = /^(?:textarea|input|select)$/i,
+       rperiod = /\./g,
+       rspace = / /g,
+       rescape = /[^\w\s.|`]/g,
        fcleanup = function( nm ) {
-               return nm.replace(/[^\w\s\.\|`]/g, function( ch ) {
-                       return "\\" + ch;
-               });
+               return nm.replace(rescape, "\\$&");
        };
 
 /*
@@ -21,12 +25,15 @@ jQuery.event = {
 
                // For whatever reason, IE has trouble passing the window object
                // around, causing it to be cloned in the process
-               if ( elem.setInterval && ( elem !== window && !elem.frameElement ) ) {
+               if ( jQuery.isWindow( elem ) && ( elem !== window && !elem.frameElement ) ) {
                        elem = window;
                }
 
                if ( handler === false ) {
                        handler = returnFalse;
+               } else if ( !handler ) {
+                       // Fixes bug #7229. Fix recommended by jdalton
+                 return;
                }
 
                var handleObjIn, handleObj;
@@ -42,7 +49,7 @@ jQuery.event = {
                }
 
                // Init the element's event structure
-               var elemData = jQuery.data( elem );
+               var elemData = jQuery._data( elem );
 
                // If no elemData is found then we must be trying to bind to one of the
                // banned noData elements
@@ -50,9 +57,13 @@ jQuery.event = {
                        return;
                }
 
-               var events = elemData.events = elemData.events || {},
+               var events = elemData.events,
                        eventHandle = elemData.handle;
 
+               if ( !events ) {
+                       elemData.events = events = {};
+               }
+
                if ( !eventHandle ) {
                        elemData.handle = eventHandle = function() {
                                // Handle the second event of a trigger and when
@@ -115,9 +126,9 @@ jQuery.event = {
                                        }
                                }
                        }
-                       
-                       if ( special.add ) { 
-                               special.add.call( elem, handleObj ); 
+
+                       if ( special.add ) {
+                               special.add.call( elem, handleObj );
 
                                if ( !handleObj.handler.guid ) {
                                        handleObj.handler.guid = handler.guid;
@@ -149,7 +160,7 @@ jQuery.event = {
                }
 
                var ret, type, fn, j, i = 0, all, namespaces, namespace, special, eventType, handleObj, origType,
-                       elemData = jQuery.data( elem ),
+                       elemData = jQuery.hasData( elem ) && jQuery._data( elem ),
                        events = elemData && elemData.events;
 
                if ( !elemData || !events ) {
@@ -188,7 +199,7 @@ jQuery.event = {
                                namespaces = type.split(".");
                                type = namespaces.shift();
 
-                               namespace = new RegExp("(^|\\.)" + 
+                               namespace = new RegExp("(^|\\.)" +
                                        jQuery.map( namespaces.slice(0).sort(), fcleanup ).join("\\.(?:.*\\.)?") + "(\\.|$)");
                        }
 
@@ -237,7 +248,7 @@ jQuery.event = {
                        // remove generic event handler if no more handlers exist
                        if ( eventType.length === 0 || pos != null && eventType.length === 1 ) {
                                if ( !special.teardown || special.teardown.call( elem, namespaces ) === false ) {
-                                       removeEvent( elem, type, elemData.handle );
+                                       jQuery.removeEvent( elem, type, elemData.handle );
                                }
 
                                ret = null;
@@ -256,7 +267,7 @@ jQuery.event = {
                        delete elemData.handle;
 
                        if ( jQuery.isEmptyObject( elemData ) ) {
-                               jQuery.removeData( elem );
+                               jQuery.removeData( elem, undefined, true );
                        }
                }
        },
@@ -288,9 +299,16 @@ jQuery.event = {
 
                                // Only trigger if we've ever bound an event for it
                                if ( jQuery.event.global[ type ] ) {
+                                       // XXX This code smells terrible. event.js should not be directly
+                                       // inspecting the data cache
                                        jQuery.each( jQuery.cache, function() {
-                                               if ( this.events && this.events[type] ) {
-                                                       jQuery.event.trigger( event, data, this.handle.elem );
+                                               // internalKey variable is just used to make it easier to find
+                                               // and potentially change this stuff later; currently it just
+                                               // points to jQuery.expando
+                                               var internalKey = jQuery.expando,
+                                                       internalCache = this[ internalKey ];
+                                               if ( internalCache && internalCache.events && internalCache.events[ type ] ) {
+                                                       jQuery.event.trigger( event, data, internalCache.handle.elem );
                                                }
                                        });
                                }
@@ -315,7 +333,8 @@ jQuery.event = {
                event.currentTarget = elem;
 
                // Trigger the event, it is assumed that "handle" is a function
-               var handle = jQuery.data( elem, "handle" );
+               var handle = jQuery._data( elem, "handle" );
+
                if ( handle ) {
                        handle.apply( elem, data );
                }
@@ -327,6 +346,7 @@ jQuery.event = {
                        if ( !(elem && elem.nodeName && jQuery.noData[elem.nodeName.toLowerCase()]) ) {
                                if ( elem[ "on" + type ] && elem[ "on" + type ].apply( elem, data ) === false ) {
                                        event.result = false;
+                                       event.preventDefault();
                                }
                        }
 
@@ -337,11 +357,13 @@ jQuery.event = {
                        jQuery.event.trigger( event, data, parent, true );
 
                } else if ( !event.isDefaultPrevented() ) {
-                       var target = event.target, old, targetType = type.replace(/\..*$/, ""),
-                               isClick = jQuery.nodeName(target, "a") && targetType === "click",
+                       var old,
+                               target = event.target,
+                               targetType = type.replace( rnamespaces, "" ),
+                               isClick = jQuery.nodeName( target, "a" ) && targetType === "click",
                                special = jQuery.event.special[ targetType ] || {};
 
-                       if ( (!special._default || special._default.call( elem, event ) === false) && 
+                       if ( (!special._default || special._default.call( elem, event ) === false) &&
                                !isClick && !(target && target.nodeName && jQuery.noData[target.nodeName.toLowerCase()]) ) {
 
                                try {
@@ -370,7 +392,9 @@ jQuery.event = {
        },
 
        handle: function( event ) {
-               var all, handlers, namespaces, namespace_sort = [], namespace_re, events, args = jQuery.makeArray( arguments );
+               var all, handlers, namespaces, namespace_re, events,
+                       namespace_sort = [],
+                       args = jQuery.makeArray( arguments );
 
                event = args[0] = jQuery.event.fix( event || window.event );
                event.currentTarget = this;
@@ -387,7 +411,8 @@ jQuery.event = {
 
                event.namespace = event.namespace || namespace_sort.join(".");
 
-               events = jQuery.data(this, "events");
+               events = jQuery._data(this, "events");
+
                handlers = (events || {})[ event.type ];
 
                if ( events && handlers ) {
@@ -404,7 +429,7 @@ jQuery.event = {
                                        event.handler = handleObj.handler;
                                        event.data = handleObj.data;
                                        event.handleObj = handleObj;
-       
+
                                        var ret = handleObj.handler.apply( this, args );
 
                                        if ( ret !== undefined ) {
@@ -425,7 +450,7 @@ jQuery.event = {
                return event.result;
        },
 
-       props: "altKey attrChange attrName bubbles button cancelable charCode clientX clientY ctrlKey currentTarget data detail eventPhase fromElement handler keyCode layerX layerY metaKey newValue offsetX offsetY originalTarget pageX pageY prevValue relatedNode relatedTarget screenX screenY shiftKey srcElement target toElement view wheelDelta which".split(" "),
+       props: "altKey attrChange attrName bubbles button cancelable charCode clientX clientY ctrlKey currentTarget data detail eventPhase fromElement handler keyCode layerX layerY metaKey newValue offsetX offsetY pageX pageY prevValue relatedNode relatedTarget screenX screenY shiftKey srcElement target toElement view wheelDelta which".split(" "),
 
        fix: function( event ) {
                if ( event[ jQuery.expando ] ) {
@@ -444,7 +469,8 @@ jQuery.event = {
 
                // Fix target property, if necessary
                if ( !event.target ) {
-                       event.target = event.srcElement || document; // Fixes #1925 where srcElement might not be defined either
+                       // Fixes #1925 where srcElement might not be defined either
+                       event.target = event.srcElement || document;
                }
 
                // check if target is a textnode (safari)
@@ -459,14 +485,16 @@ jQuery.event = {
 
                // Calculate pageX/Y if missing and clientX/Y available
                if ( event.pageX == null && event.clientX != null ) {
-                       var doc = document.documentElement, body = document.body;
+                       var doc = document.documentElement,
+                               body = document.body;
+
                        event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
                        event.pageY = event.clientY + (doc && doc.scrollTop  || body && body.scrollTop  || 0) - (doc && doc.clientTop  || body && body.clientTop  || 0);
                }
 
                // Add which for key events
-               if ( !event.which && ((event.charCode || event.charCode === 0) ? event.charCode : event.keyCode) ) {
-                       event.which = event.charCode || event.keyCode;
+               if ( event.which == null && (event.charCode != null || event.keyCode != null) ) {
+                       event.which = event.charCode != null ? event.charCode : event.keyCode;
                }
 
                // Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs)
@@ -500,7 +528,7 @@ jQuery.event = {
                        add: function( handleObj ) {
                                jQuery.event.add( this,
                                        liveConvert( handleObj.origType, handleObj.selector ),
-                                       jQuery.extend({}, handleObj, {handler: liveHandler, guid: handleObj.handler.guid}) ); 
+                                       jQuery.extend({}, handleObj, {handler: liveHandler, guid: handleObj.handler.guid}) );
                        },
 
                        remove: function( handleObj ) {
@@ -511,7 +539,7 @@ jQuery.event = {
                beforeunload: {
                        setup: function( data, namespaces, eventHandle ) {
                                // We only want to do this special case on windows
-                               if ( this.setInterval ) {
+                               if ( jQuery.isWindow( this ) ) {
                                        this.onbeforeunload = eventHandle;
                                }
                        },
@@ -525,12 +553,12 @@ jQuery.event = {
        }
 };
 
-var removeEvent = document.removeEventListener ?
+jQuery.removeEvent = document.removeEventListener ?
        function( elem, type, handle ) {
                if ( elem.removeEventListener ) {
                        elem.removeEventListener( type, handle, false );
                }
-       } : 
+       } :
        function( elem, type, handle ) {
                if ( elem.detachEvent ) {
                        elem.detachEvent( "on" + type, handle );
@@ -547,6 +575,12 @@ jQuery.Event = function( src ) {
        if ( src && src.type ) {
                this.originalEvent = src;
                this.type = src.type;
+
+               // Events bubbling up the document may have been marked as prevented
+               // by a handler lower down the tree; reflect the correct value.
+               this.isDefaultPrevented = (src.defaultPrevented || src.returnValue === false ||
+                       src.getPreventDefault && src.getPreventDefault()) ? returnTrue : returnFalse;
+
        // Event type
        } else {
                this.type = src;
@@ -577,13 +611,15 @@ jQuery.Event.prototype = {
                if ( !e ) {
                        return;
                }
-               
+
                // if preventDefault exists run it on the original event
                if ( e.preventDefault ) {
                        e.preventDefault();
-               }
+
                // otherwise set the returnValue property of the original event to false (IE)
-               e.returnValue = false;
+               } else {
+                       e.returnValue = false;
+               }
        },
        stopPropagation: function() {
                this.isPropagationStopped = returnTrue;
@@ -616,13 +652,15 @@ var withinElement = function( event ) {
 
        // Firefox sometimes assigns relatedTarget a XUL element
        // which we cannot access the parentNode property of
+       // Chrome does something similar, the parentNode property
+       // can be accessed but is null.
        try {
                // Traverse up the tree
                while ( parent && parent !== this ) {
                        parent = parent.parentNode;
                }
 
-               if ( parent !== this ) {
+               if ( parent && parent !== this ) {
                        // set the correct event type
                        event.type = event.data;
 
@@ -661,19 +699,23 @@ if ( !jQuery.support.submitBubbles ) {
 
        jQuery.event.special.submit = {
                setup: function( data, namespaces ) {
-                       if ( this.nodeName.toLowerCase() !== "form" ) {
+                       if ( this.nodeName && this.nodeName.toLowerCase() !== "form" ) {
                                jQuery.event.add(this, "click.specialSubmit", function( e ) {
-                                       var elem = e.target, type = elem.type;
+                                       var elem = e.target,
+                                               type = elem.type;
 
                                        if ( (type === "submit" || type === "image") && jQuery( elem ).closest("form").length ) {
+                                               e.liveFired = undefined;
                                                return trigger( "submit", this, arguments );
                                        }
                                });
-        
+
                                jQuery.event.add(this, "keypress.specialSubmit", function( e ) {
-                                       var elem = e.target, type = elem.type;
+                                       var elem = e.target,
+                                               type = elem.type;
 
                                        if ( (type === "text" || type === "password") && jQuery( elem ).closest("form").length && e.keyCode === 13 ) {
+                                               e.liveFired = undefined;
                                                return trigger( "submit", this, arguments );
                                        }
                                });
@@ -693,9 +735,7 @@ if ( !jQuery.support.submitBubbles ) {
 // change delegation, happens here so we have bind.
 if ( !jQuery.support.changeBubbles ) {
 
-       var formElems = /textarea|input|select/i,
-
-       changeFilters,
+       var changeFilters,
 
        getVal = function( elem ) {
                var type = elem.type, val = elem.value;
@@ -720,31 +760,34 @@ if ( !jQuery.support.changeBubbles ) {
        testChange = function testChange( e ) {
                var elem = e.target, data, val;
 
-               if ( !formElems.test( elem.nodeName ) || elem.readOnly ) {
+               if ( !rformElems.test( elem.nodeName ) || elem.readOnly ) {
                        return;
                }
 
-               data = jQuery.data( elem, "_change_data" );
+               data = jQuery._data( elem, "_change_data" );
                val = getVal(elem);
 
                // the current data will be also retrieved by beforeactivate
                if ( e.type !== "focusout" || elem.type !== "radio" ) {
-                       jQuery.data( elem, "_change_data", val );
+                       jQuery._data( elem, "_change_data", val );
                }
-               
+
                if ( data === undefined || val === data ) {
                        return;
                }
 
                if ( data != null || val ) {
                        e.type = "change";
+                       e.liveFired = undefined;
                        return jQuery.event.trigger( e, arguments[1], elem );
                }
        };
 
        jQuery.event.special.change = {
                filters: {
-                       focusout: testChange, 
+                       focusout: testChange,
+
+                       beforedeactivate: testChange,
 
                        click: function( e ) {
                                var elem = e.target, type = elem.type;
@@ -768,10 +811,10 @@ if ( !jQuery.support.changeBubbles ) {
 
                        // Beforeactivate happens also before the previous element is blurred
                        // with this event you can't trigger a change event, but you can store
-                       // information/focus[in] is not needed anymore
+                       // information
                        beforeactivate: function( e ) {
                                var elem = e.target;
-                               jQuery.data( elem, "_change_data", getVal(elem) );
+                               jQuery._data( elem, "_change_data", getVal(elem) );
                        }
                },
 
@@ -784,17 +827,20 @@ if ( !jQuery.support.changeBubbles ) {
                                jQuery.event.add( this, type + ".specialChange", changeFilters[type] );
                        }
 
-                       return formElems.test( this.nodeName );
+                       return rformElems.test( this.nodeName );
                },
 
                teardown: function( namespaces ) {
                        jQuery.event.remove( this, ".specialChange" );
 
-                       return formElems.test( this.nodeName );
+                       return rformElems.test( this.nodeName );
                }
        };
 
        changeFilters = jQuery.event.special.change.filters;
+
+       // Handle when the input is .focus()'d
+       changeFilters.focus = changeFilters.beforeactivate;
 }
 
 function trigger( type, elem, args ) {
@@ -808,13 +854,13 @@ if ( document.addEventListener ) {
                jQuery.event.special[ fix ] = {
                        setup: function() {
                                this.addEventListener( orig, handler, true );
-                       }, 
-                       teardown: function() { 
+                       },
+                       teardown: function() {
                                this.removeEventListener( orig, handler, true );
                        }
                };
 
-               function handler( e ) { 
+               function handler( e ) {
                        e = jQuery.event.fix( e );
                        e.type = fix;
                        return jQuery.event.handle.call( this, e );
@@ -831,7 +877,7 @@ jQuery.each(["bind", "one"], function( i, name ) {
                        }
                        return this;
                }
-               
+
                if ( jQuery.isFunction( data ) || data === false ) {
                        fn = data;
                        data = undefined;
@@ -871,20 +917,20 @@ jQuery.fn.extend({
 
                return this;
        },
-       
+
        delegate: function( selector, types, data, fn ) {
                return this.live( types, data, fn, selector );
        },
-       
+
        undelegate: function( selector, types, fn ) {
                if ( arguments.length === 0 ) {
                                return this.unbind( "live" );
-               
+
                } else {
                        return this.die( types, null, fn, selector );
                }
        },
-       
+
        trigger: function( type, data ) {
                return this.each(function() {
                        jQuery.event.trigger( type, data, this );
@@ -903,7 +949,8 @@ jQuery.fn.extend({
 
        toggle: function( fn ) {
                // Save reference to arguments for access in closure
-               var args = arguments, i = 1;
+               var args = arguments,
+                       i = 1;
 
                // link all the functions, so any of them can unbind this click handler
                while ( i < args.length ) {
@@ -912,8 +959,8 @@ jQuery.fn.extend({
 
                return this.click( jQuery.proxy( fn, function( event ) {
                        // Figure out which function to execute
-                       var lastToggle = ( jQuery.data( this, "lastToggle" + fn.guid ) || 0 ) % i;
-                       jQuery.data( this, "lastToggle" + fn.guid, lastToggle + 1 );
+                       var lastToggle = ( jQuery._data( this, "lastToggle" + fn.guid ) || 0 ) % i;
+                       jQuery._data( this, "lastToggle" + fn.guid, lastToggle + 1 );
 
                        // Make sure that clicks stop
                        event.preventDefault();
@@ -941,6 +988,14 @@ jQuery.each(["live", "die"], function( i, name ) {
                        selector = origSelector || this.selector,
                        context = origSelector ? this : jQuery( this.context );
 
+               if ( typeof types === "object" && !types.preventDefault ) {
+                       for ( var key in types ) {
+                               context[ name ]( key, data, types[key], selector );
+                       }
+
+                       return this;
+               }
+
                if ( jQuery.isFunction( data ) ) {
                        fn = data;
                        data = undefined;
@@ -984,18 +1039,19 @@ jQuery.each(["live", "die"], function( i, name ) {
                                context.unbind( "live." + liveConvert( type, selector ), fn );
                        }
                }
-               
+
                return this;
        };
 });
 
 function liveHandler( event ) {
-       var stop, maxLevel, elems = [], selectors = [],
-               related, match, handleObj, elem, j, i, l, data, close, namespace,
-               events = jQuery.data( this, "events" );
+       var stop, maxLevel, related, match, handleObj, elem, j, i, l, data, close, namespace, ret,
+               elems = [],
+               selectors = [],
+               events = jQuery._data( this, "events" );
 
-       // Make sure we avoid non-left-click bubbling in Firefox (#3861)
-       if ( event.liveFired === this || !events || !events.live || event.button && event.type === "click" ) {
+       // Make sure we avoid non-left-click bubbling in Firefox (#3861) and disabled elements in IE (#6911)
+       if ( event.liveFired === this || !events || !events.live || event.target.disabled || event.button && event.type === "click" ) {
                return;
        }
 
@@ -1062,6 +1118,9 @@ function liveHandler( event ) {
                        if ( ret === false ) {
                                stop = false;
                        }
+                       if ( event.isImmediatePropagationStopped() ) {
+                               break;
+                       }
                }
        }
 
@@ -1069,7 +1128,7 @@ function liveHandler( event ) {
 }
 
 function liveConvert( type, selector ) {
-       return (type && type !== "*" ? type + "." : "") + selector.replace(/\./g, "`").replace(/ /g, "&");
+       return (type && type !== "*" ? type + "." : "") + selector.replace(rperiod, "`").replace(rspace, "&");
 }
 
 jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
@@ -1093,19 +1152,4 @@ jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblcl
        }
 });
 
-// Prevent memory leaks in IE
-// Window isn't included so as not to unbind existing unload events
-// More info:
-//  - http://isaacschlueter.com/2006/10/msie-memory-leaks/
-if ( window.attachEvent && !window.addEventListener ) {
-       window.attachEvent("onunload", function() {
-               for ( var id in jQuery.cache ) {
-                       if ( jQuery.cache[ id ].handle ) {
-                               // Try/Catch is to handle iframes being unloaded, see #4280
-                               try {
-                                       jQuery.event.remove( jQuery.cache[ id ].handle.elem );
-                               } catch(e) {}
-                       }
-               }
-       });
-}
+})( jQuery );