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define( [ "./core", "./var/document", "./var/documentElement", "./var/isFunction", "./var/rnothtmlwhite", "./var/slice", "./data/var/dataPriv", "./core/nodeName",
"./core/init", "./selector"], function( jQuery, document, documentElement, isFunction, rnothtmlwhite, slice, dataPriv, nodeName ) {
"use strict";
var rkeyEvent = /^key/, rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/, rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
function returnTrue() { return true;}
function returnFalse() { return false;}
// Support: IE <=9 only
// See #13393 for more info
function safeActiveElement() { try { return document.activeElement; } catch ( err ) { }}
function on( elem, types, selector, data, fn, one ) { var origFn, type;
// Types can be a map of types/handlers
if ( typeof types === "object" ) {
// ( types-Object, selector, data )
if ( typeof selector !== "string" ) {
// ( types-Object, data )
data = data || selector; selector = undefined; } for ( type in types ) { on( elem, type, selector, data, types[ type ], one ); } return elem; }
if ( data == null && fn == null ) {
// ( types, fn )
fn = selector; data = selector = undefined; } else if ( fn == null ) { if ( typeof selector === "string" ) {
// ( types, selector, fn )
fn = data; data = undefined; } else {
// ( types, data, fn )
fn = data; data = selector; selector = undefined; } } if ( fn === false ) { fn = returnFalse; } else if ( !fn ) { return elem; }
if ( one === 1 ) { origFn = fn; fn = function( event ) {
// Can use an empty set, since event contains the info
jQuery().off( event ); return origFn.apply( this, arguments ); };
// Use same guid so caller can remove using origFn
fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ ); } return elem.each( function() { jQuery.event.add( this, types, fn, data, selector ); } );}
/* * Helper functions for managing events -- not part of the public interface. * Props to Dean Edwards' addEvent library for many of the ideas. */jQuery.event = {
global: {},
add: function( elem, types, handler, data, selector ) {
var handleObjIn, eventHandle, tmp, events, t, handleObj, special, handlers, type, namespaces, origType, elemData = dataPriv.get( elem );
// Don't attach events to noData or text/comment nodes (but allow plain objects)
if ( !elemData ) { return; }
// Caller can pass in an object of custom data in lieu of the handler
if ( handler.handler ) { handleObjIn = handler; handler = handleObjIn.handler; selector = handleObjIn.selector; }
// Ensure that invalid selectors throw exceptions at attach time
// Evaluate against documentElement in case elem is a non-element node (e.g., document)
if ( selector ) { jQuery.find.matchesSelector( documentElement, selector ); }
// Make sure that the handler has a unique ID, used to find/remove it later
if ( !handler.guid ) { handler.guid = jQuery.guid++; }
// Init the element's event structure and main handler, if this is the first
if ( !( events = elemData.events ) ) { events = elemData.events = {}; } if ( !( eventHandle = elemData.handle ) ) { eventHandle = elemData.handle = function( e ) {
// Discard the second event of a jQuery.event.trigger() and
// when an event is called after a page has unloaded
return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ? jQuery.event.dispatch.apply( elem, arguments ) : undefined; }; }
// Handle multiple events separated by a space
types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; t = types.length; while ( t-- ) { tmp = rtypenamespace.exec( types[ t ] ) || []; type = origType = tmp[ 1 ]; namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
// There *must* be a type, no attaching namespace-only handlers
if ( !type ) { continue; }
// If event changes its type, use the special event handlers for the changed type
special = jQuery.event.special[ type ] || {};
// If selector defined, determine special event api type, otherwise given type
type = ( selector ? special.delegateType : special.bindType ) || type;
// Update special based on newly reset type
special = jQuery.event.special[ type ] || {};
// handleObj is passed to all event handlers
handleObj = jQuery.extend( { type: type, origType: origType, data: data, handler: handler, guid: handler.guid, selector: selector, needsContext: selector && jQuery.expr.match.needsContext.test( selector ), namespace: namespaces.join( "." ) }, handleObjIn );
// Init the event handler queue if we're the first
if ( !( handlers = events[ type ] ) ) { handlers = events[ type ] = []; handlers.delegateCount = 0;
// Only use addEventListener if the special events handler returns false
if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
if ( elem.addEventListener ) { elem.addEventListener( type, eventHandle ); } } }
if ( special.add ) { special.add.call( elem, handleObj );
if ( !handleObj.handler.guid ) { handleObj.handler.guid = handler.guid; } }
// Add to the element's handler list, delegates in front
if ( selector ) { handlers.splice( handlers.delegateCount++, 0, handleObj ); } else { handlers.push( handleObj ); }
// Keep track of which events have ever been used, for event optimization
jQuery.event.global[ type ] = true; }
},
// Detach an event or set of events from an element
remove: function( elem, types, handler, selector, mappedTypes ) {
var j, origCount, tmp, events, t, handleObj, special, handlers, type, namespaces, origType, elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
if ( !elemData || !( events = elemData.events ) ) { return; }
// Once for each type.namespace in types; type may be omitted
types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; t = types.length; while ( t-- ) { tmp = rtypenamespace.exec( types[ t ] ) || []; type = origType = tmp[ 1 ]; namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
// Unbind all events (on this namespace, if provided) for the element
if ( !type ) { for ( type in events ) { jQuery.event.remove( elem, type + types[ t ], handler, selector, true ); } continue; }
special = jQuery.event.special[ type ] || {}; type = ( selector ? special.delegateType : special.bindType ) || type; handlers = events[ type ] || []; tmp = tmp[ 2 ] && new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
// Remove matching events
origCount = j = handlers.length; while ( j-- ) { handleObj = handlers[ j ];
if ( ( mappedTypes || origType === handleObj.origType ) && ( !handler || handler.guid === handleObj.guid ) && ( !tmp || tmp.test( handleObj.namespace ) ) && ( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) { handlers.splice( j, 1 );
if ( handleObj.selector ) { handlers.delegateCount--; } if ( special.remove ) { special.remove.call( elem, handleObj ); } } }
// Remove generic event handler if we removed something and no more handlers exist
// (avoids potential for endless recursion during removal of special event handlers)
if ( origCount && !handlers.length ) { if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
jQuery.removeEvent( elem, type, elemData.handle ); }
delete events[ type ]; } }
// Remove data and the expando if it's no longer used
if ( jQuery.isEmptyObject( events ) ) { dataPriv.remove( elem, "handle events" ); } },
dispatch: function( nativeEvent ) {
// Make a writable jQuery.Event from the native event object
var event = jQuery.event.fix( nativeEvent );
var i, j, ret, matched, handleObj, handlerQueue, args = new Array( arguments.length ), handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [], special = jQuery.event.special[ event.type ] || {};
// Use the fix-ed jQuery.Event rather than the (read-only) native event
args[ 0 ] = event;
for ( i = 1; i < arguments.length; i++ ) { args[ i ] = arguments[ i ]; }
event.delegateTarget = this;
// Call the preDispatch hook for the mapped type, and let it bail if desired
if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) { return; }
// Determine handlers
handlerQueue = jQuery.event.handlers.call( this, event, handlers );
// Run delegates first; they may want to stop propagation beneath us
i = 0; while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) { event.currentTarget = matched.elem;
j = 0; while ( ( handleObj = matched.handlers[ j++ ] ) && !event.isImmediatePropagationStopped() ) {
// Triggered event must either 1) have no namespace, or 2) have namespace(s)
// a subset or equal to those in the bound event (both can have no namespace).
if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {
event.handleObj = handleObj; event.data = handleObj.data;
ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle || handleObj.handler ).apply( matched.elem, args );
if ( ret !== undefined ) { if ( ( event.result = ret ) === false ) { event.preventDefault(); event.stopPropagation(); } } } } }
// Call the postDispatch hook for the mapped type
if ( special.postDispatch ) { special.postDispatch.call( this, event ); }
return event.result; },
handlers: function( event, handlers ) { var i, handleObj, sel, matchedHandlers, matchedSelectors, handlerQueue = [], delegateCount = handlers.delegateCount, cur = event.target;
// Find delegate handlers
if ( delegateCount &&
// Support: IE <=9
// Black-hole SVG <use> instance trees (trac-13180)
cur.nodeType &&
// Support: Firefox <=42
// Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
// https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
// Support: IE 11 only
// ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
!( event.type === "click" && event.button >= 1 ) ) {
for ( ; cur !== this; cur = cur.parentNode || this ) {
// Don't check non-elements (#13208)
// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) { matchedHandlers = []; matchedSelectors = {}; for ( i = 0; i < delegateCount; i++ ) { handleObj = handlers[ i ];
// Don't conflict with Object.prototype properties (#13203)
sel = handleObj.selector + " ";
if ( matchedSelectors[ sel ] === undefined ) { matchedSelectors[ sel ] = handleObj.needsContext ? jQuery( sel, this ).index( cur ) > -1 : jQuery.find( sel, this, null, [ cur ] ).length; } if ( matchedSelectors[ sel ] ) { matchedHandlers.push( handleObj ); } } if ( matchedHandlers.length ) { handlerQueue.push( { elem: cur, handlers: matchedHandlers } ); } } } }
// Add the remaining (directly-bound) handlers
cur = this; if ( delegateCount < handlers.length ) { handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } ); }
return handlerQueue; },
addProp: function( name, hook ) { Object.defineProperty( jQuery.Event.prototype, name, { enumerable: true, configurable: true,
get: isFunction( hook ) ? function() { if ( this.originalEvent ) { return hook( this.originalEvent ); } } : function() { if ( this.originalEvent ) { return this.originalEvent[ name ]; } },
set: function( value ) { Object.defineProperty( this, name, { enumerable: true, configurable: true, writable: true, value: value } ); } } ); },
fix: function( originalEvent ) { return originalEvent[ jQuery.expando ] ? originalEvent : new jQuery.Event( originalEvent ); },
special: { load: {
// Prevent triggered image.load events from bubbling to window.load
noBubble: true }, focus: {
// Fire native event if possible so blur/focus sequence is correct
trigger: function() { if ( this !== safeActiveElement() && this.focus ) { this.focus(); return false; } }, delegateType: "focusin" }, blur: { trigger: function() { if ( this === safeActiveElement() && this.blur ) { this.blur(); return false; } }, delegateType: "focusout" }, click: {
// For checkbox, fire native event so checked state will be right
trigger: function() { if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) { this.click(); return false; } },
// For cross-browser consistency, don't fire native .click() on links
_default: function( event ) { return nodeName( event.target, "a" ); } },
beforeunload: { postDispatch: function( event ) {
// Support: Firefox 20+
// Firefox doesn't alert if the returnValue field is not set.
if ( event.result !== undefined && event.originalEvent ) { event.originalEvent.returnValue = event.result; } } } }};
jQuery.removeEvent = function( elem, type, handle ) {
// This "if" is needed for plain objects
if ( elem.removeEventListener ) { elem.removeEventListener( type, handle ); }};
jQuery.Event = function( src, props ) {
// Allow instantiation without the 'new' keyword
if ( !( this instanceof jQuery.Event ) ) { return new jQuery.Event( src, props ); }
// Event object
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.defaultPrevented === undefined &&
// Support: Android <=2.3 only
src.returnValue === false ? returnTrue : returnFalse;
// Create target properties
// Support: Safari <=6 - 7 only
// Target should not be a text node (#504, #13143)
this.target = ( src.target && src.target.nodeType === 3 ) ? src.target.parentNode : src.target;
this.currentTarget = src.currentTarget; this.relatedTarget = src.relatedTarget;
// Event type
} else { this.type = src; }
// Put explicitly provided properties onto the event object
if ( props ) { jQuery.extend( this, props ); }
// Create a timestamp if incoming event doesn't have one
this.timeStamp = src && src.timeStamp || Date.now();
// Mark it as fixed
this[ jQuery.expando ] = true;};
// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = { constructor: jQuery.Event, isDefaultPrevented: returnFalse, isPropagationStopped: returnFalse, isImmediatePropagationStopped: returnFalse, isSimulated: false,
preventDefault: function() { var e = this.originalEvent;
this.isDefaultPrevented = returnTrue;
if ( e && !this.isSimulated ) { e.preventDefault(); } }, stopPropagation: function() { var e = this.originalEvent;
this.isPropagationStopped = returnTrue;
if ( e && !this.isSimulated ) { e.stopPropagation(); } }, stopImmediatePropagation: function() { var e = this.originalEvent;
this.isImmediatePropagationStopped = returnTrue;
if ( e && !this.isSimulated ) { e.stopImmediatePropagation(); }
this.stopPropagation(); }};
// Includes all common event props including KeyEvent and MouseEvent specific props
jQuery.each( { altKey: true, bubbles: true, cancelable: true, changedTouches: true, ctrlKey: true, detail: true, eventPhase: true, metaKey: true, pageX: true, pageY: true, shiftKey: true, view: true, "char": true, charCode: true, key: true, keyCode: true, button: true, buttons: true, clientX: true, clientY: true, offsetX: true, offsetY: true, pointerId: true, pointerType: true, screenX: true, screenY: true, targetTouches: true, toElement: true, touches: true,
which: function( event ) { var button = event.button;
// Add which for key events
if ( event.which == null && rkeyEvent.test( event.type ) ) { return event.charCode != null ? event.charCode : event.keyCode; }
// Add which for click: 1 === left; 2 === middle; 3 === right
if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) { if ( button & 1 ) { return 1; }
if ( button & 2 ) { return 3; }
if ( button & 4 ) { return 2; }
return 0; }
return event.which; }}, jQuery.event.addProp );
// Create mouseenter/leave events using mouseover/out and event-time checks
// so that event delegation works in jQuery.
// Do the same for pointerenter/pointerleave and pointerover/pointerout
//
// Support: Safari 7 only
// Safari sends mouseenter too often; see:
// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
// for the description of the bug (it existed in older Chrome versions as well).
jQuery.each( { mouseenter: "mouseover", mouseleave: "mouseout", pointerenter: "pointerover", pointerleave: "pointerout"}, function( orig, fix ) { jQuery.event.special[ orig ] = { delegateType: fix, bindType: fix,
handle: function( event ) { var ret, target = this, related = event.relatedTarget, handleObj = event.handleObj;
// For mouseenter/leave call the handler if related is outside the target.
// NB: No relatedTarget if the mouse left/entered the browser window
if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) { event.type = handleObj.origType; ret = handleObj.handler.apply( this, arguments ); event.type = fix; } return ret; } };} );
jQuery.fn.extend( {
on: function( types, selector, data, fn ) { return on( this, types, selector, data, fn ); }, one: function( types, selector, data, fn ) { return on( this, types, selector, data, fn, 1 ); }, off: function( types, selector, fn ) { var handleObj, type; if ( types && types.preventDefault && types.handleObj ) {
// ( event ) dispatched jQuery.Event
handleObj = types.handleObj; jQuery( types.delegateTarget ).off( handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType, handleObj.selector, handleObj.handler ); return this; } if ( typeof types === "object" ) {
// ( types-object [, selector] )
for ( type in types ) { this.off( type, selector, types[ type ] ); } return this; } if ( selector === false || typeof selector === "function" ) {
// ( types [, fn] )
fn = selector; selector = undefined; } if ( fn === false ) { fn = returnFalse; } return this.each( function() { jQuery.event.remove( this, types, fn, selector ); } ); }} );
return jQuery;} );
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