Merge branch 'fix7762' into jquery master. Fixes #7762.

diff --combined src/event.js
index c904734,b66cfab..675e5ff
--- 1/src/event.js
--- 2/src/event.js
+++ b/src/event.js
@@@ -63,7 -63,7 +63,7 @@@ jQuery.event = 
                var eventKey = elem.nodeType ? "events" : "__events__",
                        events = elemData[ eventKey ],
                        eventHandle = elemData.handle;
-                       
+ 
                if ( typeof events === "function" ) {
                        // On plain objects events is a fn that holds the the data
                        // which prevents this data from being JSON serialized
@@@ -143,9 -143,9 +143,9 @@@
                                        }
                                }
                        }
-                       
-                       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;
@@@ -184,7 -184,7 +184,7 @@@
                if ( !elemData || !events ) {
                        return;
                }
-               
+ 
                if ( typeof events === "function" ) {
                        elemData = events;
                        events = events.events;
@@@ -222,7 -222,7 +222,7 @@@
                                namespaces = type.split(".");
                                type = namespaces.shift();
  
-                               namespace = new RegExp("(^|\\.)" + 
+                               namespace = new RegExp("(^|\\.)" +
                                        jQuery.map( namespaces.slice(0).sort(), fcleanup ).join("\\.(?:.*\\.)?") + "(\\.|$)");
                        }
  
@@@ -384,7 -384,7 +384,7 @@@
                                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 {
@@@ -454,7 -454,7 +454,7 @@@
                                        event.handler = handleObj.handler;
                                        event.data = handleObj.data;
                                        event.handleObj = handleObj;
-       
+ 
                                        var ret = handleObj.handler.apply( this, args );
  
                                        if ( ret !== undefined ) {
@@@ -553,7 -553,7 +553,7 @@@
                        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 ) {
@@@ -583,7 -583,7 +583,7 @@@ jQuery.removeEvent = document.removeEve
                if ( elem.removeEventListener ) {
                        elem.removeEventListener( type, handle, false );
                }
-       } : 
+       } :
        function( elem, type, handle ) {
                if ( elem.detachEvent ) {
                        elem.detachEvent( "on" + type, handle );
@@@ -600,12 -600,6 +600,12 @@@ 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;
@@@ -636,7 -630,7 +636,7 @@@ jQuery.Event.prototype = 
                if ( !e ) {
                        return;
                }
-               
+ 
                // if preventDefault exists run it on the original event
                if ( e.preventDefault ) {
                        e.preventDefault();
@@@ -732,7 -726,7 +732,7 @@@ if ( !jQuery.support.submitBubbles ) 
                                                return trigger( "submit", this, arguments );
                                        }
                                });
-        
+ 
                                jQuery.event.add(this, "keypress.specialSubmit", function( e ) {
                                        var elem = e.target,
                                                type = elem.type;
@@@ -794,7 -788,7 +794,7 @@@ if ( !jQuery.support.changeBubbles ) 
                if ( e.type !== "focusout" || elem.type !== "radio" ) {
                        jQuery.data( elem, "_change_data", val );
                }
-               
+ 
                if ( data === undefined || val === data ) {
                        return;
                }
@@@ -808,7 -802,7 +808,7 @@@
  
        jQuery.event.special.change = {
                filters: {
-                       focusout: testChange, 
+                       focusout: testChange,
  
                        beforedeactivate: testChange,
  
@@@ -879,15 -873,15 +879,15 @@@ if ( document.addEventListener ) 
                                if ( focusCounts[fix]++ === 0 ) {
                                        document.addEventListener( orig, handler, true );
                                }
-                       }, 
-                       teardown: function() { 
+                       },
+                       teardown: function() {
                                if ( --focusCounts[fix] === 0 ) {
                                        document.removeEventListener( orig, handler, true );
                                }
                        }
                };
  
-               function handler( e ) { 
+               function handler( e ) {
                        e = jQuery.event.fix( e );
                        e.type = fix;
                        return jQuery.event.trigger( e, null, e.target );
@@@ -904,7 -898,7 +904,7 @@@ jQuery.each(["bind", "one"], function( 
                        }
                        return this;
                }
-               
+ 
                if ( jQuery.isFunction( data ) || data === false ) {
                        fn = data;
                        data = undefined;
@@@ -944,20 -938,20 +944,20 @@@ 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 );
@@@ -1014,12 -1008,12 +1014,12 @@@ jQuery.each(["live", "die"], function( 
                var type, i = 0, match, namespaces, preType,
                        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;
                }
  
@@@ -1066,7 -1060,7 +1066,7 @@@
                                context.unbind( "live." + liveConvert( type, selector ), fn );
                        }
                }
-               
+ 
                return this;
        };
  });
@@@ -1085,7 -1079,7 +1085,7 @@@ function liveHandler( event ) 
        if ( event.liveFired === this || !events || !events.live || event.target.disabled || event.button && event.type === "click" ) {
                return;
        }
-       
+ 
        if ( event.namespace ) {
                namespace = new RegExp("(^|\\.)" + event.namespace.split(".").join("\\.(?:.*\\.)?") + "(\\.|$)");
        }
@@@ -1183,21 -1177,4 +1183,4 @@@ jQuery.each( ("blur focus focusin focus
        }
  });
  
- // 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 ) {
-       jQuery(window).bind("unload", 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 );