jquery/src/event.js

1187 lines
31 KiB
JavaScript
Raw Normal View History

(function( jQuery ) {
var rnamespaces = /\.(.*)$/,
rformElems = /^(?:textarea|input|select)$/i,
rperiod = /\./g,
rspace = / /g,
rescape = /[^\w\s.|`]/g,
fcleanup = function( nm ) {
return nm.replace(rescape, "\\$&");
};
/*
* A number of helper functions used for managing events.
* Many of the ideas behind this code originated from
* Dean Edwards' addEvent library.
*/
jQuery.event = {
// Bind an event to an element
// Original by Dean Edwards
2009-04-30 01:26:09 +00:00
add: function( elem, types, handler, data ) {
if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
return;
2009-04-30 01:26:09 +00:00
}
// TODO :: Use a try/catch until it's safe to pull this out (likely 1.6)
// Minor release fix for bug #8018
try {
// For whatever reason, IE has trouble passing the window object
// around, causing it to be cloned in the process
if ( jQuery.isWindow( elem ) && ( elem !== window && !elem.frameElement ) ) {
elem = window;
}
2009-04-30 01:26:09 +00:00
}
catch ( e ) {}
if ( handler === false ) {
handler = returnFalse;
2010-10-24 16:18:33 +00:00
} else if ( !handler ) {
// Fixes bug #7229. Fix recommended by jdalton
2011-02-15 21:03:23 +00:00
return;
}
var handleObjIn, handleObj;
if ( handler.handler ) {
handleObjIn = handler;
handler = handleObjIn.handler;
}
// Make sure that the function being executed has a unique ID
2009-04-30 01:26:09 +00:00
if ( !handler.guid ) {
2009-12-31 20:06:45 +00:00
handler.guid = jQuery.guid++;
2009-04-30 01:26:09 +00:00
}
// Init the element's event structure
var elemData = jQuery._data( elem );
// If no elemData is found then we must be trying to bind to one of the
// banned noData elements
if ( !elemData ) {
return;
}
var events = elemData.events,
eventHandle = elemData.handle;
2010-12-26 20:28:13 +00:00
if ( !events ) {
elemData.events = events = {};
}
if ( !eventHandle ) {
elemData.handle = eventHandle = function( e ) {
// Handle the second event of a trigger and when
// an event is called after a page has unloaded
return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
jQuery.event.handle.apply( eventHandle.elem, arguments ) :
undefined;
};
}
// Add elem as a property of the handle function
// This is to prevent a memory leak with non-native events in IE.
eventHandle.elem = elem;
// Handle multiple events separated by a space
// jQuery(...).bind("mouseover mouseout", fn);
types = types.split(" ");
var type, i = 0, namespaces;
2009-04-30 01:26:09 +00:00
while ( (type = types[ i++ ]) ) {
handleObj = handleObjIn ?
jQuery.extend({}, handleObjIn) :
{ handler: handler, data: data };
// Namespaced event handlers
if ( type.indexOf(".") > -1 ) {
namespaces = type.split(".");
type = namespaces.shift();
handleObj.namespace = namespaces.slice(0).sort().join(".");
} else {
namespaces = [];
handleObj.namespace = "";
}
handleObj.type = type;
if ( !handleObj.guid ) {
handleObj.guid = handler.guid;
}
// Get the current list of functions bound to this event
var handlers = events[ type ],
special = jQuery.event.special[ type ] || {};
// Init the event handler queue
2009-04-30 01:26:09 +00:00
if ( !handlers ) {
handlers = events[ type ] = [];
// Check for a special event handler
// Only use addEventListener/attachEvent if the special
// events handler returns false
if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
// Bind the global event handler to the element
2009-04-30 01:26:09 +00:00
if ( elem.addEventListener ) {
elem.addEventListener( type, eventHandle, false );
2009-04-30 01:26:09 +00:00
} else if ( elem.attachEvent ) {
elem.attachEvent( "on" + type, eventHandle );
2009-04-30 01:26:09 +00:00
}
}
}
2010-12-26 20:28:13 +00:00
if ( special.add ) {
special.add.call( elem, handleObj );
if ( !handleObj.handler.guid ) {
handleObj.handler.guid = handler.guid;
}
}
// Add the function to the element's handler list
handlers.push( handleObj );
// Keep track of which events have been used, for global triggering
jQuery.event.global[ type ] = true;
2009-04-30 01:26:09 +00:00
}
// Nullify elem to prevent memory leaks in IE
elem = null;
},
global: {},
// Detach an event or set of events from an element
remove: function( elem, types, handler, pos ) {
// don't do events on text and comment nodes
2009-04-30 01:26:09 +00:00
if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
return;
2009-04-30 01:26:09 +00:00
}
if ( handler === false ) {
handler = returnFalse;
}
var ret, type, fn, j, i = 0, all, namespaces, namespace, special, eventType, handleObj, origType,
elemData = jQuery.hasData( elem ) && jQuery._data( elem ),
events = elemData && elemData.events;
if ( !elemData || !events ) {
return;
}
2010-12-26 20:28:13 +00:00
// types is actually an event object here
if ( types && types.type ) {
handler = types.handler;
types = types.type;
}
// Unbind all events for the element
if ( !types || typeof types === "string" && types.charAt(0) === "." ) {
types = types || "";
for ( type in events ) {
jQuery.event.remove( elem, type + types );
}
return;
}
// Handle multiple events separated by a space
// jQuery(...).unbind("mouseover mouseout", fn);
types = types.split(" ");
while ( (type = types[ i++ ]) ) {
origType = type;
handleObj = null;
all = type.indexOf(".") < 0;
namespaces = [];
if ( !all ) {
// Namespaced event handlers
namespaces = type.split(".");
type = namespaces.shift();
2010-12-26 20:28:13 +00:00
namespace = new RegExp("(^|\\.)" +
jQuery.map( namespaces.slice(0).sort(), fcleanup ).join("\\.(?:.*\\.)?") + "(\\.|$)");
}
eventType = events[ type ];
if ( !eventType ) {
continue;
}
if ( !handler ) {
for ( j = 0; j < eventType.length; j++ ) {
handleObj = eventType[ j ];
if ( all || namespace.test( handleObj.namespace ) ) {
jQuery.event.remove( elem, origType, handleObj.handler, j );
eventType.splice( j--, 1 );
}
}
continue;
}
2009-03-23 01:55:17 +00:00
special = jQuery.event.special[ type ] || {};
for ( j = pos || 0; j < eventType.length; j++ ) {
handleObj = eventType[ j ];
if ( handler.guid === handleObj.guid ) {
// remove the given handler for the given type
if ( all || namespace.test( handleObj.namespace ) ) {
if ( pos == null ) {
eventType.splice( j--, 1 );
}
if ( special.remove ) {
special.remove.call( elem, handleObj );
}
}
if ( pos != null ) {
break;
}
2009-04-30 01:26:09 +00:00
}
}
// 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 ) {
jQuery.removeEvent( elem, type, elemData.handle );
}
ret = null;
delete events[ type ];
2009-04-30 01:26:09 +00:00
}
}
// Remove the expando if it's no longer used
if ( jQuery.isEmptyObject( events ) ) {
var handle = elemData.handle;
if ( handle ) {
handle.elem = null;
}
delete elemData.events;
delete elemData.handle;
if ( jQuery.isEmptyObject( elemData ) ) {
jQuery.removeData( elem, undefined, true );
}
}
},
// bubbling is internal
2009-05-10 14:38:35 +00:00
trigger: function( event, data, elem /*, bubbling */ ) {
// Event object or event type
2009-05-10 14:38:35 +00:00
var type = event.type || event,
bubbling = arguments[3];
2009-04-30 01:26:09 +00:00
if ( !bubbling ) {
event = typeof event === "object" ?
// jQuery.Event object
event[ jQuery.expando ] ? event :
// Object literal
jQuery.extend( jQuery.Event(type), event ) :
// Just the event type (string)
jQuery.Event(type);
if ( type.indexOf("!") >= 0 ) {
event.type = type = type.slice(0, -1);
event.exclusive = true;
}
// Handle a global trigger
if ( !elem ) {
// Don't bubble custom events when global (to avoid too much overhead)
event.stopPropagation();
// 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() {
// 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 );
2009-04-30 01:26:09 +00:00
}
});
2009-04-30 01:26:09 +00:00
}
}
// Handle triggering a single element
// don't do events on text and comment nodes
2009-04-30 01:26:09 +00:00
if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 ) {
return undefined;
2009-04-30 01:26:09 +00:00
}
2009-03-23 01:55:17 +00:00
// Clean up in case it is reused
event.result = undefined;
event.target = elem;
2009-03-23 01:55:17 +00:00
// Clone the incoming data, if any
2009-04-30 01:26:09 +00:00
data = jQuery.makeArray( data );
data.unshift( event );
}
event.currentTarget = elem;
// Trigger the event, it is assumed that "handle" is a function
var handle = jQuery._data( elem, "handle" );
2009-04-30 01:26:09 +00:00
if ( handle ) {
handle.apply( elem, data );
2009-04-30 01:26:09 +00:00
}
var parent = elem.parentNode || elem.ownerDocument;
// Trigger an inline bound script
try {
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();
}
}
// prevent IE from throwing an error for some elements with some event types, see #3533
} catch (inlineError) {}
if ( !event.isPropagationStopped() && parent ) {
jQuery.event.trigger( event, data, parent, true );
} else if ( !event.isDefaultPrevented() ) {
var old,
target = event.target,
targetType = type.replace( rnamespaces, "" ),
isClick = jQuery.nodeName( target, "a" ) && targetType === "click",
special = jQuery.event.special[ targetType ] || {};
2010-12-26 20:28:13 +00:00
if ( (!special._default || special._default.call( elem, event ) === false) &&
!isClick && !(target && target.nodeName && jQuery.noData[target.nodeName.toLowerCase()]) ) {
try {
if ( target[ targetType ] ) {
// Make sure that we don't accidentally re-trigger the onFOO events
old = target[ "on" + targetType ];
if ( old ) {
target[ "on" + targetType ] = null;
}
jQuery.event.triggered = event.type;
target[ targetType ]();
}
// prevent IE from throwing an error for some elements with some event types, see #3533
} catch (triggerError) {}
if ( old ) {
target[ "on" + targetType ] = old;
}
jQuery.event.triggered = undefined;
2009-04-30 01:26:09 +00:00
}
}
},
2009-04-30 01:26:09 +00:00
handle: function( event ) {
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;
2009-03-23 01:55:17 +00:00
// Namespaced event handlers
all = event.type.indexOf(".") < 0 && !event.exclusive;
if ( !all ) {
namespaces = event.type.split(".");
event.type = namespaces.shift();
namespace_sort = namespaces.slice(0).sort();
namespace_re = new RegExp("(^|\\.)" + namespace_sort.join("\\.(?:.*\\.)?") + "(\\.|$)");
}
event.namespace = event.namespace || namespace_sort.join(".");
events = jQuery._data(this, "events");
handlers = (events || {})[ event.type ];
if ( events && handlers ) {
// Clone the handlers to prevent manipulation
handlers = handlers.slice(0);
for ( var j = 0, l = handlers.length; j < l; j++ ) {
var handleObj = handlers[ j ];
// Filter the functions by class
if ( all || namespace_re.test( handleObj.namespace ) ) {
// Pass in a reference to the handler function itself
// So that we can later remove it
event.handler = handleObj.handler;
event.data = handleObj.data;
event.handleObj = handleObj;
2010-12-26 20:28:13 +00:00
var ret = handleObj.handler.apply( this, args );
if ( ret !== undefined ) {
event.result = ret;
if ( ret === false ) {
event.preventDefault();
event.stopPropagation();
}
}
if ( event.isImmediatePropagationStopped() ) {
break;
}
2009-04-30 01:26:09 +00:00
}
}
}
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 pageX pageY prevValue relatedNode relatedTarget screenX screenY shiftKey srcElement target toElement view wheelDelta which".split(" "),
2009-04-30 01:26:09 +00:00
fix: function( event ) {
if ( event[ jQuery.expando ] ) {
return event;
2009-04-30 01:26:09 +00:00
}
// store a copy of the original event object
// and "clone" to set read-only properties
var originalEvent = event;
event = jQuery.Event( originalEvent );
2009-04-30 01:26:09 +00:00
for ( var i = this.props.length, prop; i; ) {
prop = this.props[ --i ];
event[ prop ] = originalEvent[ prop ];
}
// Fix target property, if necessary
2009-04-30 01:26:09 +00:00
if ( !event.target ) {
// Fixes #1925 where srcElement might not be defined either
event.target = event.srcElement || document;
2009-04-30 01:26:09 +00:00
}
// check if target is a textnode (safari)
2009-04-30 01:26:09 +00:00
if ( event.target.nodeType === 3 ) {
event.target = event.target.parentNode;
2009-04-30 01:26:09 +00:00
}
// Add relatedTarget, if necessary
2009-04-30 01:26:09 +00:00
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;
2009-05-01 00:21:29 +00:00
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 == null && (event.charCode != null || event.keyCode != null) ) {
event.which = event.charCode != null ? event.charCode : event.keyCode;
2009-04-30 01:26:09 +00:00
}
// Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs)
2009-04-30 01:26:09 +00:00
if ( !event.metaKey && event.ctrlKey ) {
event.metaKey = event.ctrlKey;
2009-04-30 01:26:09 +00:00
}
// 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 !== undefined ) {
event.which = (event.button & 1 ? 1 : ( event.button & 2 ? 3 : ( event.button & 4 ? 2 : 0 ) ));
2009-04-30 01:26:09 +00:00
}
return event;
},
// Deprecated, use jQuery.guid instead
guid: 1E8,
// Deprecated, use jQuery.proxy instead
2009-12-31 20:06:45 +00:00
proxy: jQuery.proxy,
special: {
ready: {
// Make sure the ready event is setup
setup: jQuery.bindReady,
teardown: jQuery.noop
},
2009-05-06 01:24:22 +00:00
live: {
add: function( handleObj ) {
jQuery.event.add( this,
liveConvert( handleObj.origType, handleObj.selector ),
2010-12-26 20:28:13 +00:00
jQuery.extend({}, handleObj, {handler: liveHandler, guid: handleObj.handler.guid}) );
},
2009-05-06 01:24:22 +00:00
remove: function( handleObj ) {
jQuery.event.remove( this, liveConvert( handleObj.origType, handleObj.selector ), handleObj );
}
},
beforeunload: {
setup: function( data, namespaces, eventHandle ) {
// We only want to do this special case on windows
if ( jQuery.isWindow( this ) ) {
this.onbeforeunload = eventHandle;
}
},
teardown: function( namespaces, eventHandle ) {
if ( this.onbeforeunload === eventHandle ) {
this.onbeforeunload = null;
}
}
}
}
};
jQuery.removeEvent = document.removeEventListener ?
function( elem, type, handle ) {
if ( elem.removeEventListener ) {
elem.removeEventListener( type, handle, false );
}
2010-12-26 20:28:13 +00:00
} :
function( elem, type, handle ) {
if ( elem.detachEvent ) {
elem.detachEvent( "on" + type, handle );
}
};
jQuery.Event = function( src ) {
// Allow instantiation without the 'new' keyword
2009-04-30 01:26:09 +00:00
if ( !this.preventDefault ) {
return new jQuery.Event( src );
}
2009-03-23 01:55:17 +00:00
// Event object
2009-04-30 01:26:09 +00:00
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
2009-04-30 01:26:09 +00:00
} else {
this.type = src;
2009-04-30 01:26:09 +00:00
}
// timeStamp is buggy for some events on Firefox(#3843)
// So we won't rely on the native value
this.timeStamp = jQuery.now();
2009-03-23 01:55:17 +00:00
// Mark it as fixed
this[ jQuery.expando ] = true;
};
2009-04-30 01:26:09 +00:00
function returnFalse() {
return false;
}
2009-04-30 01:26:09 +00:00
function returnTrue() {
return true;
}
// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {
preventDefault: function() {
this.isDefaultPrevented = returnTrue;
var e = this.originalEvent;
2009-04-30 01:26:09 +00:00
if ( !e ) {
return;
2009-04-30 01:26:09 +00:00
}
2010-12-26 20:28:13 +00:00
// if preventDefault exists run it on the original event
2009-04-30 01:26:09 +00:00
if ( e.preventDefault ) {
e.preventDefault();
// otherwise set the returnValue property of the original event to false (IE)
} else {
e.returnValue = false;
}
},
stopPropagation: function() {
this.isPropagationStopped = returnTrue;
var e = this.originalEvent;
2009-04-30 01:26:09 +00:00
if ( !e ) {
return;
2009-04-30 01:26:09 +00:00
}
// if stopPropagation exists run it on the original event
2009-04-30 01:26:09 +00:00
if ( e.stopPropagation ) {
e.stopPropagation();
2009-04-30 01:26:09 +00:00
}
// otherwise set the cancelBubble property of the original event to true (IE)
e.cancelBubble = true;
},
stopImmediatePropagation: function() {
this.isImmediatePropagationStopped = returnTrue;
this.stopPropagation();
},
isDefaultPrevented: returnFalse,
isPropagationStopped: returnFalse,
isImmediatePropagationStopped: returnFalse
};
// Checks if an event happened on an element within another element
// Used in jQuery.event.special.mouseenter and mouseleave handlers
2009-04-30 01:26:09 +00:00
var withinElement = function( event ) {
// Check if mouse(over|out) are still within the same parent element
var parent = event.relatedTarget;
// Firefox sometimes assigns relatedTarget a XUL element
// which we cannot access the parentNode property of
try {
// Chrome does something similar, the parentNode property
// can be accessed but is null.
if ( parent && parent !== document && !parent.parentNode ) {
return;
}
// Traverse up the tree
while ( parent && parent !== this ) {
parent = parent.parentNode;
}
2009-03-23 01:55:17 +00:00
if ( parent !== this ) {
// set the correct event type
event.type = event.data;
// handle event if we actually just moused on to a non sub-element
jQuery.event.handle.apply( this, arguments );
}
// assuming we've left the element since we most likely mousedover a xul element
} catch(e) { }
},
// In case of event delegation, we only need to rename the event.type,
// liveHandler will take care of the rest.
delegate = function( event ) {
event.type = event.data;
jQuery.event.handle.apply( this, arguments );
};
2009-03-23 01:55:17 +00:00
// Create mouseenter and mouseleave events
2009-03-23 01:55:17 +00:00
jQuery.each({
mouseenter: "mouseover",
mouseleave: "mouseout"
2009-04-30 01:26:09 +00:00
}, function( orig, fix ) {
jQuery.event.special[ orig ] = {
setup: function( data ) {
jQuery.event.add( this, fix, data && data.selector ? delegate : withinElement, orig );
},
teardown: function( data ) {
jQuery.event.remove( this, fix, data && data.selector ? delegate : withinElement );
}
2009-03-23 01:55:17 +00:00
};
});
// submit delegation
if ( !jQuery.support.submitBubbles ) {
jQuery.event.special.submit = {
setup: function( data, namespaces ) {
if ( this.nodeName && this.nodeName.toLowerCase() !== "form" ) {
jQuery.event.add(this, "click.specialSubmit", function( e ) {
var elem = e.target,
type = elem.type;
if ( (type === "submit" || type === "image") && jQuery( elem ).closest("form").length ) {
trigger( "submit", this, arguments );
}
});
2010-12-26 20:28:13 +00:00
jQuery.event.add(this, "keypress.specialSubmit", function( e ) {
var elem = e.target,
type = elem.type;
if ( (type === "text" || type === "password") && jQuery( elem ).closest("form").length && e.keyCode === 13 ) {
trigger( "submit", this, arguments );
}
});
} else {
return false;
}
},
teardown: function( namespaces ) {
jQuery.event.remove( this, ".specialSubmit" );
}
};
}
// change delegation, happens here so we have bind.
if ( !jQuery.support.changeBubbles ) {
var changeFilters,
getVal = function( elem ) {
var type = elem.type, val = elem.value;
if ( type === "radio" || type === "checkbox" ) {
val = elem.checked;
} else if ( type === "select-multiple" ) {
val = elem.selectedIndex > -1 ?
jQuery.map( elem.options, function( elem ) {
return elem.selected;
}).join("-") :
"";
} else if ( elem.nodeName.toLowerCase() === "select" ) {
val = elem.selectedIndex;
}
return val;
},
testChange = function testChange( e ) {
var elem = e.target, data, val;
if ( !rformElems.test( elem.nodeName ) || elem.readOnly ) {
return;
}
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 );
}
2010-12-26 20:28:13 +00:00
if ( data === undefined || val === data ) {
return;
}
if ( data != null || val ) {
e.type = "change";
e.liveFired = undefined;
jQuery.event.trigger( e, arguments[1], elem );
}
};
jQuery.event.special.change = {
filters: {
2010-12-26 20:28:13 +00:00
focusout: testChange,
beforedeactivate: testChange,
click: function( e ) {
var elem = e.target, type = elem.type;
if ( type === "radio" || type === "checkbox" || elem.nodeName.toLowerCase() === "select" ) {
testChange.call( this, e );
}
},
// Change has to be called before submit
// Keydown will be called before keypress, which is used in submit-event delegation
keydown: function( e ) {
var elem = e.target, type = elem.type;
if ( (e.keyCode === 13 && elem.nodeName.toLowerCase() !== "textarea") ||
(e.keyCode === 32 && (type === "checkbox" || type === "radio")) ||
type === "select-multiple" ) {
testChange.call( this, e );
}
},
// Beforeactivate happens also before the previous element is blurred
// with this event you can't trigger a change event, but you can store
// information
beforeactivate: function( e ) {
var elem = e.target;
jQuery._data( elem, "_change_data", getVal(elem) );
}
},
setup: function( data, namespaces ) {
if ( this.type === "file" ) {
return false;
}
for ( var type in changeFilters ) {
jQuery.event.add( this, type + ".specialChange", changeFilters[type] );
}
return rformElems.test( this.nodeName );
},
teardown: function( namespaces ) {
jQuery.event.remove( this, ".specialChange" );
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 ) {
// Piggyback on a donor event to simulate a different one.
// Fake originalEvent to avoid donor's stopPropagation, but if the
// simulated event prevents default then we do the same on the donor.
// Don't pass args or remember liveFired; they apply to the donor event.
var event = jQuery.extend( {}, args[ 0 ] );
event.type = type;
event.originalEvent = {};
event.liveFired = undefined;
jQuery.event.handle.call( elem, event );
if ( event.isDefaultPrevented() ) {
args[ 0 ].preventDefault();
}
}
// Create "bubbling" focus and blur events
if ( document.addEventListener ) {
jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
// Attach a single capturing handler while someone wants focusin/focusout
var attaches = 0;
jQuery.event.special[ fix ] = {
setup: function() {
if ( attaches++ === 0 ) {
document.addEventListener( orig, handler, true );
}
},
teardown: function() {
if ( --attaches === 0 ) {
document.removeEventListener( orig, handler, true );
}
}
};
function handler( donor ) {
// Donor event is always a native one; fix it and switch its type.
// Let focusin/out handler cancel the donor focus/blur event.
var e = jQuery.event.fix( donor );
e.type = fix;
e.originalEvent = {};
jQuery.event.trigger( e, null, e.target );
if ( e.isDefaultPrevented() ) {
donor.preventDefault();
}
}
});
}
jQuery.each(["bind", "one"], function( i, name ) {
jQuery.fn[ name ] = function( type, data, fn ) {
// Handle object literals
if ( typeof type === "object" ) {
for ( var key in type ) {
this[ name ](key, data, type[key], fn);
}
return this;
}
2010-12-26 20:28:13 +00:00
if ( jQuery.isFunction( data ) || data === false ) {
fn = data;
data = undefined;
}
var handler = name === "one" ? jQuery.proxy( fn, function( event ) {
jQuery( this ).unbind( event, handler );
return fn.apply( this, arguments );
}) : fn;
if ( type === "unload" && name !== "one" ) {
this.one( type, data, fn );
} else {
for ( var i = 0, l = this.length; i < l; i++ ) {
jQuery.event.add( this[i], type, handler, data );
}
}
return this;
};
});
jQuery.fn.extend({
unbind: function( type, fn ) {
// Handle object literals
if ( typeof type === "object" && !type.preventDefault ) {
for ( var key in type ) {
this.unbind(key, type[key]);
}
} else {
for ( var i = 0, l = this.length; i < l; i++ ) {
jQuery.event.remove( this[i], type, fn );
}
}
return this;
},
2010-12-26 20:28:13 +00:00
delegate: function( selector, types, data, fn ) {
return this.live( types, data, fn, selector );
},
2010-12-26 20:28:13 +00:00
undelegate: function( selector, types, fn ) {
if ( arguments.length === 0 ) {
return this.unbind( "live" );
2010-12-26 20:28:13 +00:00
} else {
return this.die( types, null, fn, selector );
}
},
2010-12-26 20:28:13 +00:00
trigger: function( type, data ) {
return this.each(function() {
jQuery.event.trigger( type, data, this );
});
},
triggerHandler: function( type, data ) {
2009-04-30 01:26:09 +00:00
if ( this[0] ) {
var event = jQuery.Event( type );
event.preventDefault();
event.stopPropagation();
jQuery.event.trigger( event, data, this[0] );
return event.result;
2009-03-23 01:55:17 +00:00
}
},
toggle: function( fn ) {
// Save reference to arguments for access in closure
var args = arguments,
i = 1;
// link all the functions, so any of them can unbind this click handler
while ( i < args.length ) {
jQuery.proxy( fn, args[ i++ ] );
2009-04-30 01:26:09 +00:00
}
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 );
// Make sure that clicks stop
event.preventDefault();
// and execute the function
return args[ lastToggle ].apply( this, arguments ) || false;
}));
},
2009-04-30 01:26:09 +00:00
hover: function( fnOver, fnOut ) {
return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
}
});
var liveMap = {
focus: "focusin",
blur: "focusout",
mouseenter: "mouseover",
mouseleave: "mouseout"
};
jQuery.each(["live", "die"], function( i, name ) {
jQuery.fn[ name ] = function( types, data, fn, origSelector /* Internal Use Only */ ) {
var type, i = 0, match, namespaces, preType,
selector = origSelector || this.selector,
context = origSelector ? this : jQuery( this.context );
2010-12-26 20:28:13 +00:00
if ( typeof types === "object" && !types.preventDefault ) {
for ( var key in types ) {
context[ name ]( key, data, types[key], selector );
}
2010-12-26 20:28:13 +00:00
return this;
}
if ( jQuery.isFunction( data ) ) {
fn = data;
data = undefined;
}
types = (types || "").split(" ");
while ( (type = types[ i++ ]) != null ) {
match = rnamespaces.exec( type );
namespaces = "";
if ( match ) {
namespaces = match[0];
type = type.replace( rnamespaces, "" );
}
if ( type === "hover" ) {
types.push( "mouseenter" + namespaces, "mouseleave" + namespaces );
continue;
}
preType = type;
if ( type === "focus" || type === "blur" ) {
types.push( liveMap[ type ] + namespaces );
type = type + namespaces;
} else {
type = (liveMap[ type ] || type) + namespaces;
}
if ( name === "live" ) {
// bind live handler
for ( var j = 0, l = context.length; j < l; j++ ) {
jQuery.event.add( context[j], "live." + liveConvert( type, selector ),
{ data: data, selector: selector, handler: fn, origType: type, origHandler: fn, preType: preType } );
}
2009-03-23 01:55:17 +00:00
} else {
// unbind live handler
context.unbind( "live." + liveConvert( type, selector ), fn );
}
}
2010-12-26 20:28:13 +00:00
return this;
};
});
2009-04-30 01:26:09 +00:00
function liveHandler( event ) {
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) and disabled elements in IE (#6911)
if ( event.liveFired === this || !events || !events.live || event.target.disabled || event.button && event.type === "click" ) {
return;
}
2010-12-26 20:28:13 +00:00
if ( event.namespace ) {
namespace = new RegExp("(^|\\.)" + event.namespace.split(".").join("\\.(?:.*\\.)?") + "(\\.|$)");
}
event.liveFired = this;
var live = events.live.slice(0);
for ( j = 0; j < live.length; j++ ) {
handleObj = live[j];
if ( handleObj.origType.replace( rnamespaces, "" ) === event.type ) {
selectors.push( handleObj.selector );
} else {
live.splice( j--, 1 );
}
}
match = jQuery( event.target ).closest( selectors, event.currentTarget );
for ( i = 0, l = match.length; i < l; i++ ) {
close = match[i];
for ( j = 0; j < live.length; j++ ) {
handleObj = live[j];
if ( close.selector === handleObj.selector && (!namespace || namespace.test( handleObj.namespace )) && !close.elem.disabled ) {
elem = close.elem;
related = null;
// Those two events require additional checking
if ( handleObj.preType === "mouseenter" || handleObj.preType === "mouseleave" ) {
event.type = handleObj.preType;
related = jQuery( event.relatedTarget ).closest( handleObj.selector )[0];
}
if ( !related || related !== elem ) {
elems.push({ elem: elem, handleObj: handleObj, level: close.level });
}
2009-04-30 01:26:09 +00:00
}
}
}
for ( i = 0, l = elems.length; i < l; i++ ) {
match = elems[i];
if ( maxLevel && match.level > maxLevel ) {
break;
}
event.currentTarget = match.elem;
event.data = match.handleObj.data;
event.handleObj = match.handleObj;
ret = match.handleObj.origHandler.apply( match.elem, arguments );
if ( ret === false || event.isPropagationStopped() ) {
maxLevel = match.level;
if ( ret === false ) {
stop = false;
}
if ( event.isImmediatePropagationStopped() ) {
break;
}
2009-04-30 01:26:09 +00:00
}
}
return stop;
}
2009-04-30 01:26:09 +00:00
function liveConvert( type, selector ) {
return (type && type !== "*" ? type + "." : "") + selector.replace(rperiod, "`").replace(rspace, "&");
}
jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
"change select submit keydown keypress keyup error").split(" "), function( i, name ) {
// Handle event binding
jQuery.fn[ name ] = function( data, fn ) {
if ( fn == null ) {
fn = data;
data = null;
}
return arguments.length > 0 ?
this.bind( name, data, fn ) :
this.trigger( name );
};
if ( jQuery.attrFn ) {
jQuery.attrFn[ name ] = true;
}
});
})( jQuery );