event-debug.js revision 011173392d3a1a59092095d5a24857134cb16f93
if (!GLOBAL_ENV._ready) {
GLOBAL_ENV._ready = function() {
GLOBAL_ENV.DOMReady = true;
};
// if (!YUI.UA.ie) {
// }
}
/*
* DOM event listener abstraction layer
* @module event
* @submodule event-base
*/
/**
* The domready event fires at the moment the browser's DOM is
* usable. In most cases, this is before images are fully
* downloaded, allowing you to provide a more responsive user
* interface.
*
* In YUI 3, domready subscribers will be notified immediately if
* that moment has already passed when the subscription is created.
*
* One exception is if the yui.js file is dynamically injected into
* the page. If this is done, you must tell the YUI instance that
* you did this in order for DOMReady (and window load events) to
* fire normally. That configuration option is 'injected' -- set
* it to true if the yui.js script is not included inline.
*
* This method is part of the 'event-ready' module, which is a
* submodule of 'event'.
*
* @event domready
* @for YUI
*/
Y.publish('domready', {
fireOnce: true,
async: true
});
if (GLOBAL_ENV.DOMReady) {
Y.fire('domready');
} else {
}
/**
* Custom event engine, DOM event listener abstraction layer, synthetic DOM
* events.
* @module event
* @submodule event-base
*/
/**
* Wraps a DOM event, properties requiring browser abstraction are
* fixed here. Provids a security layer when required.
* @class DOMEventFacade
* @param ev {Event} the DOM event
* @param currentTarget {HTMLElement} the element the listener was attached to
* @param wrapper {Event.Custom} the custom event wrapper for this DOM event
*/
EMPTY = {},
/**
* webkit key remapping required for Safari < 3.1
* @property webkitKeymap
* @private
*/
webkitKeymap = {
63232: 38, // up
63233: 40, // down
63234: 37, // left
63235: 39, // right
63276: 33, // page up
63277: 34, // page down
25: 9, // SHIFT-TAB (Safari provides a different key code in
// this case, even though the shiftKey modifier is set)
63272: 46, // delete
63273: 36, // home
63275: 35 // end
},
/**
* Returns a wrapped node. Intended to be used on event targets,
* so it will return the node's parent if the target is a text
* node.
*
* If accessing a property of the node throws an error, this is
* probably the anonymous div wrapper Gecko adds inside text
* nodes. This likely will only occur when attempting to access
* the relatedTarget. In this case, we now return null because
* the anonymous div is completely useless and we do not know
* what the related target was because we can't even get to
* the element's parent node.
*
* @method resolve
* @private
*/
resolve = function(n) {
if (!n) {
return n;
}
try {
if (n && 3 == n.nodeType) {
n = n.parentNode;
}
} catch(e) {
return null;
}
return Y.one(n);
},
this._currentTarget = currentTarget;
// if not lazy init
this.init();
};
Y.extend(DOMEventFacade, Object, {
init: function() {
var e = this._event,
x = e.pageX,
y = e.pageY,
c,
currentTarget = this._currentTarget;
this.pageX = x;
this.pageY = y;
c = webkitKeymap[c];
}
this.keyCode = c;
this.charCode = c;
this.wheelDelta = (e.detail) ? (e.detail * -1) : Math.round(e.wheelDelta / 80) || ((e.wheelDelta < 0) ? -1 : 1);
}
if (this._touch) {
}
},
stopPropagation: function() {
this._event.stopPropagation();
this.stopped = 1;
},
stopImmediatePropagation: function() {
var e = this._event;
if (e.stopImmediatePropagation) {
} else {
this.stopPropagation();
}
this.stopped = 2;
},
preventDefault: function(returnValue) {
var e = this._event;
e.preventDefault();
e.returnValue = returnValue || false;
this.prevented = 1;
},
if (immediate) {
this.stopImmediatePropagation();
} else {
this.stopPropagation();
}
this.preventDefault();
}
});
/**
* The native event
* @property _event
*/
/**
* The X location of the event on the page (including scroll)
* @property pageX
* @type int
*/
/**
* The Y location of the event on the page (including scroll)
* @property pageY
* @type int
*/
/**
* The keyCode for key events. Uses charCode if keyCode is not available
* @property keyCode
* @type int
*/
/**
* The charCode for key events. Same as keyCode
* @property charCode
* @type int
*/
/**
* The button that was pushed.
* @property button
* @type int
*/
/**
* The button that was pushed. Same as button.
* @property which
* @type int
*/
/**
* Node reference for the targeted element
* @propery target
* @type Node
*/
/**
* Node reference for the element that the listener was attached to.
* @propery currentTarget
* @type Node
*/
/**
* Node reference to the relatedTarget
* @propery relatedTarget
* @type Node
*/
/**
* Number representing the direction and velocity of the movement of the mousewheel.
* Negative is down, the higher the number, the faster. Applies to the mousewheel event.
* @property wheelDelta
* @type int
*/
/**
* Stops the propagation to the next bubble target
* @method stopPropagation
*/
/**
* Stops the propagation to the next bubble target and
* prevents any additional listeners from being exectued
* on the current target.
* @method stopImmediatePropagation
*/
/**
* Prevents the event's default behavior
* @method preventDefault
* @param returnValue {string} sets the returnValue of the event to this value
* (rather than the default false value). This can be used to add a customized
* confirmation query to the beforeunload event).
*/
/**
* Stops the event propagation and prevents the default
* event behavior.
* @method halt
* @param immediate {boolean} if true additional listeners
* on the current target will not be executed
*/
(function() {
/**
* DOM event listener abstraction layer
* @module event
* @submodule event-base
*/
/**
* The event utility provides functions to add and remove event listeners,
* event cleansing. It also tries to automatically remove listeners it
* registers during the unload event.
*
* @class Event
* @static
*/
onLoad = function() {
},
onUnload = function() {
},
EVENT_READY = 'domready',
COMPAT_ARG = '~yui|2|compat~',
shouldIterate = function(o) {
try {
} catch(ex) {
return false;
}
},
Event = function() {
/**
* True after the onload event has fired
* @property _loadComplete
* @type boolean
* @static
* @private
*/
var _loadComplete = false,
/**
* The number of times to poll after window.onload. This number is
* increased if additional late-bound handlers are requested after
* the page load.
* @property _retryCount
* @static
* @private
*/
_retryCount = 0,
/**
* onAvailable listeners
* @property _avail
* @static
* @private
*/
_avail = [],
/**
* Custom event wrappers for DOM events. Key is
* 'event:' + Element uid stamp + event type
* @property _wrappers
* @type Y.Event.Custom
* @static
* @private
*/
_windowLoadKey = null,
/**
* Custom event wrapper map DOM events. Key is
* Element uid stamp. Each item is a hash of custom event
* wrappers as provided in the _wrappers collection. This
* provides the infrastructure for getListeners.
* @property _el_events
* @static
* @private
*/
return {
/**
* The number of times we should look for elements that are not
* in the DOM at the time the event is requested after the document
* has been loaded. The default is 1000@amp;40 ms, so it will poll
* for 40 seconds or until all outstanding handlers are bound
* (whichever comes first).
* @property POLL_RETRYS
* @type int
* @static
* @final
*/
POLL_RETRYS: 1000,
/**
* The poll interval in milliseconds
* @property POLL_INTERVAL
* @type int
* @static
* @final
*/
POLL_INTERVAL: 40,
/**
* addListener/removeListener can throw errors in unexpected scenarios.
* These errors are suppressed, the method returns false, and this property
* is set
* @property lastError
* @static
* @type Error
*/
lastError: null,
/**
* poll handle
* @property _interval
* @static
* @private
*/
_interval: null,
/**
* document readystate poll handle
* @property _dri
* @static
* @private
*/
_dri: null,
/**
* True when the document is initially usable
* @property DOMReady
* @type boolean
* @static
*/
DOMReady: false,
/**
* @method startInterval
* @static
* @private
*/
startInterval: function() {
}
},
/**
* Executes the supplied callback when the item with the supplied
* id is found. This is meant to be used to execute behavior as
* soon as possible as the page loads. If you use this after the
* initial page load it will poll for a fixed time for the element.
* The number of times it will poll and the frequency are
* configurable. By default it will poll for 10 seconds.
*
* <p>The callback is executed with a single parameter:
* the custom object parameter, if provided.</p>
*
* @method onAvailable
*
* @param {string||string[]} id the id of the element, or an array
* of ids to look for.
* @param {function} fn what to execute when the element is found.
* @param {object} p_obj an optional object to be passed back as
* a parameter to fn.
* @param {boolean|object} p_override If set to true, fn will execute
* in the context of p_obj, if set to an object it
* will execute in the context of that object
* @param checkContent {boolean} check child node readiness (onContentReady)
* @static
* @deprecated Use Y.on("available")
*/
// @TODO fix arguments
var a = Y.Array(id), i, availHandle;
// Y.log('onAvailable registered for: ' + id);
id: a[i],
});
}
_retryCount = this.POLL_RETRYS;
// We want the first test to be immediate, but async
availHandle = new Y.EventHandle({
_delete: function() {
// set by the event system for lazy DOM listeners
if (availHandle.handle) {
return;
}
var i, j;
// otherwise try to remove the onAvailable listener(s)
for (i = 0; i < a.length; i++) {
}
}
}
}
});
return availHandle;
},
/**
* Works the same way as onAvailable, but additionally checks the
* state of sibling elements to determine if the content of the
* available element is safe to modify.
*
* <p>The callback is executed with a single parameter:
* the custom object parameter, if provided.</p>
*
* @method onContentReady
*
* @param {string} id the id of the element to look for.
* @param {function} fn what to execute when the element is ready.
* @param {object} obj an optional object to be passed back as
* a parameter to fn.
* @param {boolean|object} override If set to true, fn will execute
* in the context of p_obj. If an object, fn will
* exectute in the context of that object
*
* @static
* @deprecated Use Y.on("contentready")
*/
// @TODO fix arguments
},
/**
* Adds an event listener
*
* @method attach
*
* @param {String} type The type of event to append
* @param {Function} fn The method the event invokes
* @param {String|HTMLElement|Array|NodeList} el An id, an element
* listener to.
* @param {Object} context optional context object
* @param {Boolean|object} args 0..n arguments to pass to the callback
* @return {EventHandle} an object to that can be used to detach the listener
*
* @static
*/
},
var cewrapper,
if (false === facade) {
key += 'native';
}
if (capture) {
key += 'capture';
}
if (!cewrapper) {
// create CE wrapper
silent: true,
bubbles: false,
contextFn: function() {
if (compat) {
} else {
}
}
});
// for later removeListener calls
};
// window load happens once
}
}
return cewrapper;
},
var compat,
compat = true;
// trimmedArgs.pop();
}
// throw new TypeError(type + " attach call failed, callback undefined");
return false;
}
// The el argument can be an array of elements or element ids.
if (shouldIterate(el)) {
handles=[];
args[2] = v;
});
// return (handles.length === 1) ? handles[0] : handles;
return new Y.EventHandle(handles);
// If the el argument is a string, we assume it is
// actually the id of the element. If the page is loaded
// we convert el to the actual element, otherwise we
// defer attaching the event until the element is
// ready
// oEl = (compat) ? Y.DOM.byId(el) : Y.Selector.query(el);
if (compat) {
} else {
case 0:
oEl = null;
break;
case 1:
break;
default:
}
}
if (oEl) {
// Not found = defer adding the event until the element is available
} else {
// Y.log(el + ' not found');
// Y.log('lazy attach: ' + args);
return ret;
}
}
// Element should be an html element or node
if (!el) {
return false;
}
}
if (overrides) {
}
// if the load is complete, fire immediately.
// all subscribers, including the current one
// will be notified.
fireNow = true;
}
}
if (compat) {
}
// set context to the Node if not specified
// ret = cewrapper.on.apply(cewrapper, trimmedArgs);
if (fireNow) {
}
return ret;
},
/**
* Removes an event listener. Supports the signature the event was bound
* with, but the preferred way to remove listeners is using the handle
* that is returned when using Y.on
*
* @method detach
*
* @param {String} type the type of event to remove.
* @param {Function} fn the method the event invokes. If fn is
* undefined, then all event handlers for the type of event are
* removed.
* @param {String|HTMLElement|Array|NodeList|EventHandle} el An
* event handle, an id, an element reference, or a collection
* @return {boolean} true if the unbind was successful, false otherwise.
* @static
*/
compat = true;
// args.pop();
}
}
// The el argument can be a string
if (typeof el == "string") {
// el = (compat) ? Y.DOM.byId(el) : Y.all(el);
if (compat) {
} else {
if (l < 1) {
el = null;
} else if (l == 1) {
}
}
// return Event.detach.apply(Event, args);
}
if (!el) {
return false;
}
// The el argument can be an array of elements or element ids.
} else if (shouldIterate(el)) {
ok = true;
}
return ok;
}
}
if (ce) {
} else {
return false;
}
},
/**
* Finds the event in the window object, the caller's arguments, or
* in the arguments of another method in the callstack. This is
* executed automatically for events registered through the event
* manager, so the implementer should not normally need to execute
* this function at all.
* @method getEvent
* @param {Event} e the event parameter from the handler
* @param {HTMLElement} el the element the listener was attached to
* @return {Event} the event
* @static
*/
},
/**
* Generates an unique ID for the element if it does not already
* have one.
* @method generateId
* @param el the element to create the id for
* @return {string} the resulting id of the element
* @static
*/
generateId: function(el) {
if (!id) {
}
return id;
},
/**
* We want to be able to use getElementsByTagName as a collection
* to attach a group of events to. Unfortunately, different
* browsers return different types of collections. This function
* tests to determine if the object is array-like. It will also
* fail if the object is an array, but is empty.
* @method _isValidCollection
* @param o the object to test
* @return {boolean} true if the object is array-like and populated
* @deprecated was not meant to be used directly
* @static
* @private
*/
/**
* hook up any deferred listeners
* @method _load
* @static
* @private
*/
_load: function(e) {
if (!_loadComplete) {
// Y.log('Load Complete', 'info', 'event');
_loadComplete = true;
// Just in case DOMReady did not go off for some reason
// E._ready();
if (Y.fire) {
Y.fire(EVENT_READY);
}
// Available elements may not have been detected before the
// window load event fires. Try to find them now so that the
// the user is more likely to get the onAvailable notifications
// before the window load notification
}
},
/**
* Polling function that runs before the onload event fires,
* attempting to attach to DOM Nodes as soon as they are
* available
* @method _poll
* @static
* @private
*/
_poll: function() {
return;
}
// Hold off if DOMReady has not fired and check current
// readyState to protect against the IE operation aborted
// issue.
return;
}
// Y.log.debug("poll");
// keep trying until after the page is loaded. We need to
// check the page load state prior to trying to bind the
// elements so that we can be certain all elements have been
// tested appropriately
if (!tryAgain) {
}
// onAvailable
notAvail = [];
if (ov === true) {
} else {
}
} else {
}
} else {
}
};
// onAvailable
// el = (item.compat) ? Y.DOM.byId(item.id) : Y.one(item.id);
if (el) {
// Y.log('avail: ' + el);
_avail[i] = null;
} else {
// Y.log('NOT avail: ' + el);
}
}
}
// onContentReady
// el = (item.compat) ? Y.DOM.byId(item.id) : Y.one(item.id);
if (el) {
// The element is available, but not necessarily ready
// @todo should we test parentNode.nextSibling?
_avail[i] = null;
}
} else {
}
}
}
if (tryAgain) {
// we may need to strip the nulled out items here
} else {
}
return;
},
/**
* Removes all listeners attached to the given element via addListener.
* Optionally, the node's children can also be purged.
* Optionally, you can specify a specific type of event to remove.
* @method purgeElement
* @param {HTMLElement} el the element to purge
* @param {boolean} recurse recursively purge this element's children
* as well. Use with caution.
* @param {string} type optional type of listener to purge. If
* left out, all listeners will be removed
* @static
*/
// var oEl = (Y.Lang.isString(el)) ? Y.one(el) : el,
i = 0;
for (; i < len; ++i) {
if (child) {
}
}
}
if (lis) {
i = 0;
for (; i < len; ++i) {
}
}
},
/**
* Returns all listeners attached to the given element via addListener.
* Optionally, you can specify a specific type of event to return.
* @method getListeners
* @param el {HTMLElement|string} the element or element id to inspect
* @param type {string} optional type of listener to return. If
* left out, all listeners will be returned
* @return {Y.Custom.Event} the custom event wrapper for the DOM event(s)
* @static
*/
if (!evts) {
return null;
}
if (key) {
// look for synthetic events
key += '_synth';
}
}
// get native events as well
key += 'native';
}
} else {
});
}
},
/**
* Removes all listeners registered by pe.event. Called
* automatically during the unload event.
* @method _unload
* @static
* @private
*/
_unload: function(e) {
v.detachAll();
delete _wrappers[k];
delete _el_events[v.domkey][k];
});
},
/**
* Adds a DOM event directly without the caching, cleanup, context adj, etc
*
* @method nativeAdd
* @param {HTMLElement} el the element to bind the handler to
* @param {string} type the type of event handler
* @param {function} fn the callback to invoke
* @param {boolen} capture capture or bubble phase
* @static
* @private
*/
/**
* Basic remove listener
*
* @method nativeRemove
* @param {HTMLElement} el the element to bind the handler to
* @param {string} type the type of event handler
* @param {function} fn the callback to invoke
* @param {boolen} capture capture or bubble phase
* @static
* @private
*/
};
}();
onLoad();
} else {
}
// Process onAvailable/onContentReady items when when the DOM is ready in IE
}
})();
/**
* DOM event listener abstraction layer
* @module event
* @submodule event-base
*/
/**
* Executes the callback as soon as the specified element
* is detected in the DOM.
* @event available
* @param type {string} 'available'
* @param fn {function} the callback function to execute.
* @param el {string|HTMLElement|collection} the element(s) to attach
* @param context optional argument that specifies what 'this' refers to.
* @param args* 0..n additional arguments to pass on to the callback function.
* These arguments will be added after the event object.
* @return {EventHandle} the detach handle
* @for YUI
*/
}
};
/**
* Executes the callback as soon as the specified element
* is detected in the DOM with a nextSibling property
* (indicating that the element's children are available)
* @event contentready
* @param type {string} 'contentready'
* @param fn {function} the callback function to execute.
* @param el {string|HTMLElement|collection} the element(s) to attach
* @param context optional argument that specifies what 'this' refers to.
* @param args* 0..n additional arguments to pass on to the callback function.
* These arguments will be added after the event object.
* @return {EventHandle} the detach handle
* @for YUI
*/
}
};
/**
* Adds event delegation support to the library.
*
* @module event
* @submodule event-delegate
*/
var toArray = Y.Array,
/**
* <p>Sets up event delegation on a container element. The delegated event
* will use a supplied selector or filtering function to test if the event
* references at least one node that should trigger the subscription
* callback.</p>
*
* <p>Selector string filters will trigger the callback if the event originated
* from a node that matches it or is contained in a node that matches it.
* Function filters are called for each Node up the parent axis to the
* subscribing container node, and receive at each level the Node and the event
* object. The function should return true (or a truthy value) if that Node
* should trigger the subscription callback. Note, it is possible for filters
* to match multiple Nodes for a single event. In this case, the delegate
* callback will be executed for each matching Node.</p>
*
* <p>For each matching Node, the callback will be executed with its 'this'
* object set to the Node matched by the filter (unless a specific context was
* provided during subscription), and the provided event's
* <code>currentTarget</code> will also be set to the matching Node. The
* containing Node from which the subscription was originally made can be
* referenced as <code>e.container</code>.
*
* @method delegate
* @param type {String} the event type to delegate
* @param fn {Function} the callback function to execute. This function
* will be provided the event object for the delegated event.
* @param el {String|node} the element that is the delegation container
* @param spec {string|Function} a selector that must match the target of the
* event or a function to test target and its parents for a match
* @param context optional argument that specifies what 'this' refers to.
* @param args* 0..n additional arguments to pass on to the callback function.
* These arguments will be added after the event object.
* @return {EventHandle} the detach handle
* @for YUI
*/
}
}
if (!handle) {
return;
}
}, el);
}
}
}
}
return handle;
}
/**
* Overrides the <code>_notify</code> method on the normal DOM subscription to
* inject the filtering logic and only proceed in the case of a match.
*
* @method delegate.notifySub
* @param thisObj {Object} default 'this' object for the callback
* @param args {Array} arguments passed to the event's <code>fire()</code>
* @param ce {CustomEvent} the custom event managing the DOM subscriptions for
* the subscribed event on the subscribing node.
* @return {Boolean} false if the event was stopped
* @private
* @static
* @since 3.2.0
*/
// Preserve args for other subscribers
if (this.args) {
}
// Only notify subs if the event occurred on a targeted element
//container = e.currentTarget,
e, i, ret;
if (currentTarget) {
// Support multiple matches up the the container subtree
// The second arg is the currentTarget, but we'll be reusing this
// facade, replacing the currentTarget for each use, so it doesn't
// matter what element we seed it with.
if (ret === false) { // stop further notifications
break;
}
}
return ret;
}
};
/**
* <p>Compiles a selector string into a filter function to identify whether
* Nodes along the parent axis of an event's target should trigger event
* notification.</p>
*
* <p>This function is memoized, so previously compiled filter functions are
* returned if the same selector string is provided.</p>
*
* <p>This function may be useful when defining synthetic events for delegate
* handling.</p>
*
* @method delegate.compileFilter
* @param selector {String} the selector string to base the filtration on
* @return {Function}
* @since 3.2.0
* @static
*/
return function (target, e) {
};
});
/**
* Walks up the parent axis of an event's target, and tests each element
* against a supplied filter function. If any Nodes satisfy the filter, the
* delegated callback will be triggered for each.
*
* @method delegate._applyFilter
* @param filter {Function} boolean function to test for inclusion in event
* notification
* @param args {Array} the arguments that would be passed to subscribers
* @param ce {CustomEvent} the DOM event wrapper
* @return {Node|Node[]|undefined} The Node or Nodes that satisfy the filter
* @protected
*/
var e = args[0],
//container = e.currentTarget,
match = [];
// Resolve text nodes to their containing element
}
// passing target as the first arg rather than leaving well enough alone
// making 'this' in the filter function refer to the target. This is to
// support bound filter functions.
}
}
} else {
// filter functions are implementer code and should receive wrappers
// filter(target, e, extra args...) - this === target
}
}
}
}
// remove the target
return match;
};
/**
* Sets up event delegation on a container element. The delegated event
* will use a supplied filter to test if the callback should be executed.
* This filter can be either a selector string or a function that returns
* a Node to use as the currentTarget for the event.
*
* The event object for the delegated event is supplied to the callback
* function. It is modified slightly in order to support all properties
* that may be needed for event delegation. 'currentTarget' is set to
* the element that matched the selector string filter or the Node returned
* from the filter function. 'container' is set to the element that the
* listener is delegated from (this normally would be the 'currentTarget').
*
* Filter functions will be called with the arguments that would be passed to
* the callback function, including the event object as the first parameter.
* The function should return false (or a falsey value) if the success criteria
* aren't met, and the Node to use as the event's currentTarget and 'this'
* object if they are.
*
* @method delegate
* @param type {string} the event type to delegate
* @param fn {function} the callback function to execute. This function
* will be provided the event object for the delegated event.
* @param el {string|node} the element that is the delegation container
* @param filter {string|function} a selector that must match the target of the
* event or a function that returns a Node or false.
* @param context optional argument that specifies what 'this' refers to.
* @param args* 0..n additional arguments to pass on to the callback function.
* These arguments will be added after the event object.
* @return {EventHandle} the detach handle
* @for YUI
*/
/**
* Define new DOM events that can be subscribed to from Nodes.
*
* @module event
* @submodule event-synthetic
*/
toArray = Y.Array,
noop = function () {};
/**
* <p>The triggering mechanism used by SyntheticEvents.</p>
*
* <p>Implementers should not instantiate these directly. Use the Notifier
* provided to the event's implemented <code>on(node, sub, notifier)</code> or
* <code>delegate(node, sub, notifier, filter)</code> methods.</p>
*
* @class SyntheticEvent.Notifier
* @constructor
* @param handle {EventHandle} the detach handle for the subscription to an
* internal custom event used to execute the callback passed to
* on(..) or delegate(..)
* @param emitFacade {Boolean} take steps to ensure the first arg received by
* the subscription callback is an event facade
* @private
* @since 3.2.0
*/
this.emitFacade = emitFacade;
}
/**
* <p>Executes the subscription callback, passing the firing arguments as the
* first parameters to that callback. For events that are configured with
* emitFacade=true, it is common practice to pass the triggering DOMEventFacade
* as the first parameter. Barring a proper DOMEventFacade or EventFacade
* (from a CustomEvent), a new EventFacade will be generated. In that case, if
* fire() is called with a simple object, it will be mixed into the facade.
* Otherwise, the facade will be prepended to the callback parameters.</p>
*
* <p>For notifiers provided to delegate logic, the first argument should be an
* object with a "currentTarget" property to identify what object to
* default as 'this' in the callback. Typically this is gleaned from the
* DOMEventFacade or EventFacade, but if configured with emitFacade=false, an
* object must be provided. In that case, the object will be removed from the
* callback parameters.</p>
*
* <p>Additional arguments passed during event subscription will be
* automatically added after those passed to fire().</p>
*
* @method fire
* @param e {EventFacade|DOMEventFacade|Object|any} (see description)
* @param arg* {any} additional arguments received by all subscriptions
* @private
*/
// first arg to delegate notifier should be an object with currentTarget
event = e || {};
if (this.emitFacade) {
if (!e || !e.preventDefault) {
if (isObject(e) && !e.preventDefault) {
} else {
}
}
if (delegate) {
}
}
};
/**
* <p>Wrapper class for the integration of new events into the YUI event
* infrastructure. Don't instantiate this object directly, use
* <code>Y.Event.define(type, config)</code>. See that method for details.</p>
*
* <p>Properties that MAY or SHOULD be specified in the configuration are noted
* below and in the description of <code>Y.Event.define</code>.</p>
*
* @class SyntheticEvent
* @constructor
* @param cfg {Object} Implementation pieces and configuration
* @since 3.1.0
* @in event-synthetic
*/
function SyntheticEvent() {
}
Y.mix(SyntheticEvent, {
/**
* Returns the array of subscription handles for a node for the given event
* type. Passing true as the third argument will create a registry entry
* in the event system's DOM map to host the array if one doesn't yet exist.
*
* @method getRegistry
* @param node {Node} the node
* @param type {String} the event
* @param create {Boolean} create a registration entry to host a new array
* if one doesn't exist.
* @return {Array}
* @static
* @protected
* @since 3.2.0
*/
type : '_synth',
capture : false,
notifiers : [],
detachAll : function () {
while (--i >= 0) {
}
}
};
}
},
/**
* Alternate <code>_delete()</code> method for the CustomEvent object
* created to manage SyntheticEvent subscriptions.
*
* @method _deleteSub
* @param sub {Subscription} the subscription to clean up
* @private
* @since 3.2.0
*/
_deleteSub: function (sub) {
this.subscribers = {};
this.subCount = 0;
}
},
prototype: {
/**
* Construction logic for the event.
*
* @method _init
* @protected
*/
_init: function () {
// The notification mechanism handles facade creation
true;
config.emitFacade = false;
},
/**
* <p>Implementers MAY provide this method definition.</p>
*
* <p>Implement this function if the event supports a different
* subscription signature. This function is used by both
* <code>on()</code> and <code>delegate()</code>. The second parameter
* indicates that the event is being subscribed via
* <code>delegate()</code>.</p>
*
* <p>Implementations must remove extra arguments from the args list
* before returning. The required args for <code>on()</code>
* subscriptions are</p>
* <pre><code>[type, callback, target, context, argN...]</code></pre>
*
* <p>The required args for <code>delegate()</code>
* subscriptions are</p>
*
* <pre><code>[type, callback, target, filter, context, argN...]</code></pre>
*
* <p>The return value from this function will be stored on the
* subscription in the '_extra' property for reference elsewhere.</p>
*
* @method processArgs
* @param args {Array} parmeters passed to Y.on(..) or Y.delegate(..)
* @param delegate {Boolean} true if the subscription is from Y.delegate
* @return {any}
*/
/**
* <p>Implementers MAY override this property.</p>
*
* <p>Whether to prevent multiple subscriptions to this event that are
* classified as being the same. By default, this means the subscribed
* callback is the same function. See the <code>subMatch</code>
* method. Setting this to true will impact performance for high volume
* events.</p>
*
* @property preventDups
* @type {Boolean}
* @default false
*/
//preventDups : false,
/**
* <p>Implementers SHOULD provide this method definition.</p>
*
* Implementation logic for subscriptions done via <code>node.on(type,
* fn)</code> or <code>Y.on(type, fn, target)</code>. This
* function should set up the monitor(s) that will eventually fire the
* event. Typically this involves subscribing to at least one DOM
* event. It is recommended to store detach handles from any DOM
* subscriptions to make for easy cleanup in the <code>detach</code>
* method. Typically these handles are added to the <code>sub</code>
* object. Also for SyntheticEvents that leverage a single DOM
* subscription under the hood, it is recommended to pass the DOM event
* object to <code>notifier.fire(e)</code>. (The event name on the
* object will be updated).
*
* @method on
* @param node {Node} the node the subscription is being applied to
* @param sub {Subscription} the object to track this subscription
* @param notifier {SyntheticEvent.Notifier} call notifier.fire(..) to
* trigger the execution of the subscribers
*/
/**
* <p>Implementers SHOULD provide this method definition.</p>
*
* <p>Implementation logic for detaching subscriptions done via
* <code>node.on(type, fn)</code>. This function should clean up any
* subscriptions made in the <code>on()</code> phase.</p>
*
* @method detach
* @param node {Node} the node the subscription was applied to
* @param sub {Subscription} the object tracking this subscription
* @param notifier {SyntheticEvent.Notifier} the Notifier used to
* trigger the execution of the subscribers
*/
/**
* <p>Implementers SHOULD provide this method definition.</p>
*
* <p>Implementation logic for subscriptions done via
* <code>node.delegate(type, fn, filter)</code> or
* <code>Y.delegate(type, fn, container, filter)</code>. Like with
* <code>on()</code> above, this function should monitor the environment
* for the event being fired, and trigger subscription execution by
* calling <code>notifier.fire(e)</code>.</p>
*
* <p>This function receives a fourth argument, which is the filter
* used to identify which Node's are of interest to the subscription.
* The filter will be either a boolean function that accepts a target
* Node for each hierarchy level as the event bubbles, or a selector
* string. To translate selector strings into filter functions, use
* <code>Y.delegate.compileFilter(filter)</code>.</p>
*
* @method delegate
* @param node {Node} the node the subscription is being applied to
* @param sub {Subscription} the object to track this subscription
* @param notifier {SyntheticEvent.Notifier} call notifier.fire(..) to
* trigger the execution of the subscribers
* @param filter {String|Function} Selector string or function that
* accepts an event object and returns null, a Node, or an
* array of Nodes matching the criteria for processing.
* @since 3.2.0
*/
/**
* <p>Implementers SHOULD provide this method definition.</p>
*
* <p>Implementation logic for detaching subscriptions done via
* <code>node.delegate(type, fn, filter)</code> or
* <code>Y.delegate(type, fn, container, filter)</code>. This function
* should clean up any subscriptions made in the
* <code>delegate()</code> phase.</p>
*
* @method detachDelegate
* @param node {Node} the node the subscription was applied to
* @param sub {Subscription} the object tracking this subscription
* @param notifier {SyntheticEvent.Notifier} the Notifier used to
* trigger the execution of the subscribers
* @param filter {String|Function} Selector string or function that
* accepts an event object and returns null, a Node, or an
* array of Nodes matching the criteria for processing.
* @since 3.2.0
*/
/**
* Sets up the boilerplate for detaching the event and facilitating the
* execution of subscriber callbacks.
*
* @method _on
* @param args {Array} array of arguments passed to
* <code>Y.on(...)</code> or <code>Y.delegate(...)</code>
* @param delegate {Boolean} true if called from
* <code>Y.delegate(...)</code>
* @return {EventHandle} the detach handle for this subscription
* @private
* since 3.2.0
*/
var handles = [],
// Can't just use Y.all because it doesn't support window (yet?)
}, selector);
return handle;
}
if (node) {
if (delegate) {
}
// (type, fn, el, thisObj, ...) => (fn, thisObj, ...)
}
}
}, this);
handles[0] :
new Y.EventHandle(handles);
},
/**
* Creates a new Notifier object for use by this event's
* <code>on(...)</code> or <code>delegate(...)</code> implementation.
*
* @method _getNotifier
* @param node {Node} the Node hosting the event
* @param args {Array} the subscription arguments passed to either
* <code>Y.on(...)</code> or <code>Y.delegate(...)</code>
* after running through <code>processArgs(args)</code> to
* normalize the argument signature
* @param extra {any} Extra data parsed from
* <code>processArgs(args)</code>
* @param filter {String|Function} the selector string or function
* filter passed to <code>Y.delegate(...)</code> (not
* present when called from <code>Y.on(...)</code>)
* @return {SyntheticEvent.Notifier}
* @private
* @since 3.2.0
*/
Y.mix(dispatcher, {
eventDef : this,
}, true);
return handle;
},
/**
* Removes the subscription from the Notifier registry.
*
* @method _unregisterSub
* @param sub {Subscription} the subscription
* @private
* @since 3.2.0
*/
_unregisterSub: function (sub) {
i;
if (notifiers) {
break;
}
}
}
},
/**
* Removes the subscription(s) from the internal subscription dispatch
* mechanism. See <code>SyntheticEvent._deleteSub</code>.
*
* @method _detach
* @param args {Array} The arguments passed to
* <code>node.detach(...)</code>
* @private
* @since 3.2.0
*/
// Can't use Y.all because it doesn't support window (yet?)
// TODO: Does Y.all support window now?
// (type, fn, el, context, filter?) => (type, fn, context, filter?)
if (node) {
if (handles) {
}
}
}
}
},
/**
* Returns the detach handles of subscriptions on a node that satisfy a
* <code>subMatch</code> method.
*
* @method getSubs
* @param node {Node} the node hosting the event
* @param args {Array} the array of original subscription args passed
* to <code>Y.on(...)</code> (before
* <code>processArgs</code>
* @param filter {Function} function used to identify a subscription
* for inclusion in the returned array
* @param first {Boolean} stop after the first match (used to check for
* duplicate subscriptions)
* @return {Array} detach handles for the matching subscriptions
*/
handles = [],
if (notifiers) {
if (!filter) {
}
if (first) {
return handle;
} else {
}
}
}
}
},
/**
* <p>Implementers MAY override this to define what constitutes a
* "same" subscription. Override implementations should
* consider the lack of a comparator as a match, so calling
* <code>getSubs()</code> with no arguments will return all subs.</p>
*
* <p>Compares a set of subscription arguments against a Subscription
* object to determine if they match. The default implementation
* compares the callback function against the second argument passed to
* <code>Y.on(...)</code> or <code>node.detach(...)</code> etc.</p>
*
* @method subMatch
* @param sub {Subscription} the existing subscription
* @param args {Array} the calling arguments passed to
* <code>Y.on(...)</code> etc.
* @return {Boolean} true if the sub can be described by the args
* present
* @since 3.2.0
*/
// Default detach cares only about the callback matching
}
}
}, true);
/**
* <p>Defines a new event in the DOM event system. Implementers are
* responsible for monitoring for a scenario whereby the event is fired. A
* notifier object is provided to the functions identified below. When the
* criteria defining the event are met, call notifier.fire( [args] ); to
* execute event subscribers.</p>
*
* <p>The first parameter is the name of the event. The second parameter is a
* configuration object which define the behavior of the event system when the
* new event is subscribed to or detached from. The methods that should be
* defined in this configuration object are <code>on</code>,
* <code>detach</code>, <code>delegate</code>, and <code>detachDelegate</code>.
* You are free to define any other methods or properties needed to define your
* event. Be aware, however, that since the object is used to subclass
* SyntheticEvent, you should avoid method names used by SyntheticEvent unless
* your intention is to override the default behavior.</p>
*
* <p>This is a list of properties and methods that you can or should specify
* in the configuration object:</p>
*
* <dl>
* <dt><code>on</code></dt>
* <dd><code>function (node, subscription, notifier)</code> The
* implementation logic for subscription. Any special setup you need to
* do to create the environment for the event being fired--E.g. native
* DOM event subscriptions. Store subscription related objects and
* state on the <code>subscription</code> object. When the
* criteria have been met to fire the synthetic event, call
* <code>notifier.fire(e)</code>. See Notifier's <code>fire()</code>
* method for details about what to pass as parameters.</dd>
*
* <dt><code>detach</code></dt>
* <dd><code>function (node, subscription, notifier)</code> The
* implementation logic for cleaning up a detached subscription. E.g.
* detach any DOM subscriptions added in <code>on</code>.</dd>
*
* <dt><code>delegate</code></dt>
* <dd><code>function (node, subscription, notifier, filter)</code> The
* implementation logic for subscription via <code>Y.delegate</code> or
* <code>node.delegate</code>. The filter is typically either a selector
* string or a function. You can use
* <code>Y.delegate.compileFilter(selectorString)</code> to create a
* filter function from a selector string if needed. The filter function
* expects an event object as input and should output either null, a
* matching Node, or an array of matching Nodes. Otherwise, this acts
* like <code>on</code> DOM event subscriptions. Store subscription
* related objects and information on the <code>subscription</code>
* object. When the criteria have been met to fire the synthetic event,
* call <code>notifier.fire(e)</code> as noted above.</dd>
*
* <dt><code>detachDelegate</code></dt>
* <dd><code>function (node, subscription, notifier)</code> The
* implementation logic for cleaning up a detached delegate subscription.
* E.g. detach any DOM delegate subscriptions added in
* <code>delegate</code>.</dd>
*
* <dt><code>publishConfig</code></dt>
* <dd>(Object) The configuration object that will be used to instantiate
* the underlying CustomEvent. See Notifier's <code>fire</code> method
* for details.</dd>
*
* <dt><code>processArgs</code></dt
* <dd>
* <p><code>function (argArray, fromDelegate)</code> Optional method
* to extract any additional arguments from the subscription
* signature. Using this allows <code>on</code> or
* <code>delegate</code> signatures like
* <code>node.on("hover", overCallback,
* outCallback)</code>.</p>
* <p>When processing an atypical argument signature, make sure the
* args array is returned to the normal signature before returning
* from the function. For example, in the "hover" example
* above, the <code>outCallback</code> needs to be <code>splice</code>d
* out of the array. The expected signature of the args array for
* <code>on()</code> subscriptions is:</p>
* <pre>
* <code>[type, callback, target, contextOverride, argN...]</code>
* </pre>
* <p>And for <code>delegate()</code>:</p>
* <pre>
* <code>[type, callback, target, filter, contextOverride, argN...]</code>
* </pre>
* <p>where <code>target</code> is the node the event is being
* subscribed for. You can see these signatures documented for
* <code>Y.on()</code> and <code>Y.delegate()</code> respectively.</p>
* <p>Whatever gets returned from the function will be stored on the
* <code>subscription</code> object under
* <code>subscription._extra</code>.</p></dd>
* <dt><code>subMatch</code></dt>
* <dd>
* <p><code>function (sub, args)</code> Compares a set of
* subscription arguments against a Subscription object to determine
* if they match. The default implementation compares the callback
* function against the second argument passed to
* <code>Y.on(...)</code> or <code>node.detach(...)</code> etc.</p>
* </dd>
* </dl>
*
* @method Event.define
* @param type {String} the name of the event
* @param config {Object} the prototype definition for the new event (see above)
* @param force {Boolean} override an existing event (use with caution)
* @static
* @return {SyntheticEvent} the subclass implementation instance created to
* handle event subscriptions of this type
* @for Event
* @since 3.1.0
* @in event-synthetic
*/
if (!config) {
config = {};
}
Impl = function () {
};
on: function () {
},
delegate: function () {
},
detach: function () {
}
};
}
return synth;
};
/**
* Adds mousewheel event support
* @module event
* @submodule event-mousewheel
*/
var DOM_MOUSE_SCROLL = 'DOMMouseScroll',
a[0] = DOM_MOUSE_SCROLL;
} else {
}
if (a.length < 3) {
a[2] = target;
} else {
}
return a;
};
/**
* Mousewheel event. This listener is automatically attached to the
* correct target, so one should not be supplied. Mouse wheel
* direction and velocity is stored in the 'mouseDelta' field.
* @event mousewheel
* @param type {string} 'mousewheel'
* @param fn {function} the callback to execute
* @param context optional context object
* @param args 0..n additional arguments to provide to the listener.
* @return {EventHandle} the detach handle
* @for YUI
*/
on: function() {
},
detach: function() {
}
};
/**
* <p>Adds subscription and delegation support for mouseenter and mouseleave
* events. Unlike mouseover and mouseout, these events aren't fired from child
* elements of a subscribed node.</p>
*
* <p>This avoids receiving three mouseover notifications from a setup like</p>
*
* <pre><code>div#container > p > a[href]</code></pre>
*
* <p>where</p>
*
* <pre><code>Y.one('#container').on('mouseover', callback)</code></pre>
*
* <p>When the mouse moves over the link, one mouseover event is fired from
* #container, then when the mouse moves over the p, another mouseover event is
* fired and bubbles to #container, causing a second notification, and finally
* when the mouse moves over the link, a third mouseover event is fired and
* bubbles to #container for a third notification.</p>
*
* <p>By contrast, using mouseenter instead of mouseover, the callback would be
* executed only once when the mouse moves over #container.</p>
*
* @module event
* @submodule event-mouseenter
*/
var current = e.currentTarget,
related = e.relatedTarget;
}
}
var config = {
proxyType: "mouseover",
},
},
},
}
};
/**
* Functionality to listen for one or more specific key combinations.
* @module event
* @submodule event-key
*/
/**
* Add a key listener. The listener will only be notified if the
* keystroke detected meets the supplied specification. The
* spec consists of the key event type, followed by a colon,
* followed by zero or more comma separated key codes, followed
* by zero or more modifiers delimited by a plus sign. Ex:
* press:12,65+shift+ctrl
* @event key
* @for YUI
* @param type {string} 'key'
* @param fn {function} the function to execute
* @param id {string|HTMLElement|collection} the element(s) to bind
* @param spec {string} the keyCode and modifier specification
* @param o optional context object
* @param args 0..n additional arguments to provide to the listener.
* @return {Event.Handle} the detach handle
*/
}
// key event type: 'down', 'up', or 'press'
// list of key codes optionally followed by modifiers
// the name of the custom event that will be created for the spec
// subscribe spec validator to the DOM event
// Y.log('keylistener: ' + e.keyCode);
// pass this section if any supplied keyCode
// is found
// Y.log('passed: ' + crit);
passed = true;
} else {
failed = true;
// Y.log('failed: ' + crit);
}
// only check modifier if no keyCode was specified
// or the keyCode check was successful. pass only
// if every modifier passes
// Y.log(crit + ": " + passed);
}
}
// fire spec custom event if spec if met
if (passed) {
}
}, id);
}
// subscribe supplied listener to custom event for spec validator
// remove element and spec.
a[0] = ename;
}
};
/**
* Adds bubbling and delegation support to DOM events focus and blur.
*
* @module event
* @submodule event-focus
*/
}, el]);
} else {
{ capture: true });
}
},
// Maintain a list to handle subscriptions from nested
// containers div#a>div#b>input #a.on(focus..) #b.on(focus..),
// use one focus or blur subscription that fires notifiers from
// #b then #a to emulate bubble sequence.
if (!notifiers) {
notifiers = {};
// only subscribe to the element's focus if the target is
// not the current target (
if (defer) {
}
}
}
if (!defer) {
this._notify(e);
}
}
},
var node = e.currentTarget,
// document.get('ownerDocument') returns null
nots = [],
if (notifiers) {
// Walk up the parent axis until the origin node,
}
} else {
delete e.container;
}
}
// clear the notifications list (mainly for delegation)
}
},
},
},
}
},
}
}, true);
}
// For IE, we need to defer to focusin rather than focus because
// `el.focus(); doSomething();` executes el.onbeforeactivate, el.onactivate,
// el.onfocusin, doSomething, then el.onfocus. All others support capture
// phase focus, which executes before doSomething. To guarantee consistent
// behavior for this use case, IE's direct subscriptions are made against
// focusin so subscribers will be notified before js following el.focus() is
// executed.
if (useActivate) {
// name capture phase direct subscription
} else {
}
/**
* Adds a window resize event that has its behavior normalized to fire at the
* end of the resize rather than constantly during the resize.
* @module event
* @submodule event-resize
*/
(function() {
var detachHandle,
CE_NAME = 'window:resize',
handler = function(e) {
} else {
if (timerHandle) {
}
});
}
};
/**
* Firefox fires the window resize event once when the resize action
* finishes, other browsers fire the event periodically during the
* resize. This code uses timeout logic to simulate the Firefox
* behavior in other browsers.
* @event windowresize
* @for YUI
*/
// check for single window listener and add if needed
if (!detachHandle) {
}
var a = Y.Array(arguments, 0, true);
a[0] = CE_NAME;
}
};
})();
YUI.add('event', function(Y){}, '@VERSION@' ,{use:['event-base', 'event-delegate', 'event-synthetic', 'event-mousewheel', 'event-mouseenter', 'event-key', 'event-focus', 'event-resize']});