assets.lib.jquery.src.event.js Maven / Gradle / Ivy
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define([
"./core",
"./var/strundefined",
"./var/rnotwhite",
"./var/hasOwn",
"./var/slice",
"./event/support",
"./data/var/data_priv",
"./core/init",
"./data/accepts",
"./selector"
], function( jQuery, strundefined, rnotwhite, hasOwn, slice, support, data_priv ) {
var
rkeyEvent = /^key/,
rmouseEvent = /^(?:mouse|pointer|contextmenu)|click/,
rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
function returnTrue() {
return true;
}
function returnFalse() {
return false;
}
function safeActiveElement() {
try {
return document.activeElement;
} catch ( err ) { }
}
/*
* 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 = data_priv.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;
}
// 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 !== strundefined && jQuery.event.triggered !== e.type ?
jQuery.event.dispatch.apply( elem, arguments ) : undefined;
};
}
// Handle multiple events separated by a space
types = ( types || "" ).match( rnotwhite ) || [ "" ];
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, false );
}
}
}
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 = data_priv.hasData( elem ) && data_priv.get( elem );
if ( !elemData || !(events = elemData.events) ) {
return;
}
// Once for each type.namespace in types; type may be omitted
types = ( types || "" ).match( rnotwhite ) || [ "" ];
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 the expando if it's no longer used
if ( jQuery.isEmptyObject( events ) ) {
delete elemData.handle;
data_priv.remove( elem, "events" );
}
},
trigger: function( event, data, elem, onlyHandlers ) {
var i, cur, tmp, bubbleType, ontype, handle, special,
eventPath = [ elem || document ],
type = hasOwn.call( event, "type" ) ? event.type : event,
namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : [];
cur = tmp = elem = elem || document;
// Don't do events on text and comment nodes
if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
return;
}
// focus/blur morphs to focusin/out; ensure we're not firing them right now
if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
return;
}
if ( type.indexOf(".") >= 0 ) {
// Namespaced trigger; create a regexp to match event type in handle()
namespaces = type.split(".");
type = namespaces.shift();
namespaces.sort();
}
ontype = type.indexOf(":") < 0 && "on" + type;
// Caller can pass in a jQuery.Event object, Object, or just an event type string
event = event[ jQuery.expando ] ?
event :
new jQuery.Event( type, typeof event === "object" && event );
// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
event.isTrigger = onlyHandlers ? 2 : 3;
event.namespace = namespaces.join(".");
event.namespace_re = event.namespace ?
new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :
null;
// Clean up the event in case it is being reused
event.result = undefined;
if ( !event.target ) {
event.target = elem;
}
// Clone any incoming data and prepend the event, creating the handler arg list
data = data == null ?
[ event ] :
jQuery.makeArray( data, [ event ] );
// Allow special events to draw outside the lines
special = jQuery.event.special[ type ] || {};
if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
return;
}
// Determine event propagation path in advance, per W3C events spec (#9951)
// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
bubbleType = special.delegateType || type;
if ( !rfocusMorph.test( bubbleType + type ) ) {
cur = cur.parentNode;
}
for ( ; cur; cur = cur.parentNode ) {
eventPath.push( cur );
tmp = cur;
}
// Only add window if we got to document (e.g., not plain obj or detached DOM)
if ( tmp === (elem.ownerDocument || document) ) {
eventPath.push( tmp.defaultView || tmp.parentWindow || window );
}
}
// Fire handlers on the event path
i = 0;
while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {
event.type = i > 1 ?
bubbleType :
special.bindType || type;
// jQuery handler
handle = ( data_priv.get( cur, "events" ) || {} )[ event.type ] && data_priv.get( cur, "handle" );
if ( handle ) {
handle.apply( cur, data );
}
// Native handler
handle = ontype && cur[ ontype ];
if ( handle && handle.apply && jQuery.acceptData( cur ) ) {
event.result = handle.apply( cur, data );
if ( event.result === false ) {
event.preventDefault();
}
}
}
event.type = type;
// If nobody prevented the default action, do it now
if ( !onlyHandlers && !event.isDefaultPrevented() ) {
if ( (!special._default || special._default.apply( eventPath.pop(), data ) === false) &&
jQuery.acceptData( elem ) ) {
// Call a native DOM method on the target with the same name name as the event.
// Don't do default actions on window, that's where global variables be (#6170)
if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {
// Don't re-trigger an onFOO event when we call its FOO() method
tmp = elem[ ontype ];
if ( tmp ) {
elem[ ontype ] = null;
}
// Prevent re-triggering of the same event, since we already bubbled it above
jQuery.event.triggered = type;
elem[ type ]();
jQuery.event.triggered = undefined;
if ( tmp ) {
elem[ ontype ] = tmp;
}
}
}
}
return event.result;
},
dispatch: function( event ) {
// Make a writable jQuery.Event from the native event object
event = jQuery.event.fix( event );
var i, j, ret, matched, handleObj,
handlerQueue = [],
args = slice.call( arguments ),
handlers = ( data_priv.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;
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.namespace_re || event.namespace_re.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, matches, sel, handleObj,
handlerQueue = [],
delegateCount = handlers.delegateCount,
cur = event.target;
// Find delegate handlers
// Black-hole SVG