event-custom-debug.js revision 5740f3112d19859eebaba7b3b8b95e6bc14beffb
(function() {
/**
* Custom event engine
* @module event-custom
*/
handles: {},
plugins: {}
};
// Y.Env.eventHandles = {};
// Y.Env.eventAdaptors = {};
})();
(function() {
/**
* Custom event engine, DOM event listener abstraction layer, synthetic DOM
* events.
* @module event
*/
/**
* Allows for the insertion of methods that are executed before or after
* a specified method
* @class Do
* @static
*/
var BEFORE = 0,
AFTER = 1;
Y.Do = {
/**
* Cache of objects touched by the utility
* @property objs
* @static
*/
objs: {},
/**
* Execute the supplied method before the specified function
* @method before
* @param fn {Function} the function to execute
* @param obj the object hosting the method to displace
* @param sFn {string} the name of the method to displace
* @param c The execution context for fn
* @return {string} handle for the subscription
* @static
*/
// Y.log('Do before: ' + sFn, 'info', 'event');
var f = fn, a;
if (c) {
}
},
/**
* Execute the supplied method after the specified function
* @method after
* @param fn {Function} the function to execute
* @param obj the object hosting the method to displace
* @param sFn {string} the name of the method to displace
* @param c The execution context for fn
* @return {string} handle for the subscription
* @static
*/
var f = fn, a;
if (c) {
}
},
/**
* Execute the supplied method after the specified function
* @method _inject
* @param when {string} before or after
* @param fn {Function} the function to execute
* @param obj the object hosting the method to displace
* @param sFn {string} the name of the method to displace
* @param c The execution context for fn
* @return {string} handle for the subscription
* @private
* @static
*/
// object id
// create a map entry for the obj if it doesn't exist
}
if (! o[sFn]) {
// create a map entry for the method if it doesn't exist
// re-route the method to our wrapper
function() {
};
}
// subscriber id
// register the callback
},
/**
* Detach a before or after subscription
* @method detach
* @param handle {string} the subscription handle
*/
}
},
}
};
//////////////////////////////////////////////////////////////////////////
/**
* Wrapper for a displaced method with aop enabled
* @class Do.Method
* @constructor
* @param obj The object to operate on
* @param sFn The name of the method to displace
*/
this.methodName = sFn;
// this.before = [];
// this.after = [];
this.before = {};
this.after = {};
};
/**
* Register a aop subscriber
* @method register
* @param sid {string} the subscriber id
* @param fn {Function} the function to execute
* @param when {string} when to execute the function
*/
if (when) {
// this.after.push(fn);
} else {
// this.before.push(fn);
}
};
/**
* Unregister a aop subscriber
* @method delete
* @param sid {string} the subscriber id
* @param fn {Function} the function to execute
* @param when {string} when to execute the function
*/
// Y.log('Y.Do._delete: ' + sid, 'info', 'Event');
};
/**
* Execute the wrapped method
* @method exec
*/
prevented = false;
// execute before
for (i in bf) {
if (bf.hasOwnProperty(i)) {
if (ret) {
switch (ret.constructor) {
break;
prevented = true;
break;
default:
}
}
}
}
// execute method
if (!prevented) {
}
// execute after methods.
for (i in af) {
if (af.hasOwnProperty(i)) {
// Stop processing if a Halt object is returned
// Check for a new return value
}
}
}
return ret;
};
//////////////////////////////////////////////////////////////////////////
/**
* Return an AlterArgs object when you want to change the arguments that
* were passed into the function. An example would be a service that scrubs
* out illegal characters prior to executing the core business logic.
* @class Do.AlterArgs
*/
};
/**
* Return an AlterReturn object when you want to change the result returned
* from the core method to the caller
* @class Do.AlterReturn
*/
};
/**
* Return a Halt object when you want to terminate the execution
* of all subsequent subscribers as well as the wrapped method
* if it has not exectued yet.
* @class Do.Halt
*/
};
/**
* Return a Prevent object when you want to prevent the wrapped function
* from executing, but want the remaining listeners to execute
* @class Do.Prevent
*/
};
/**
* Return an Error object when you want to terminate the execution
* of all subsequent method calls.
* @class Do.Error
* @deprecated
*/
//////////////////////////////////////////////////////////////////////////
// Y["Event"] && Y.Event.addListener(window, "unload", Y.Do._unload, Y.Do);
})();
(function() {
/**
* Wraps and protects a custom event for use when emitFacade is set to true.
* @class EventFacade
* @param e {Event} the custom event
* @param currentTarget {HTMLElement} the element the listener was attached to
*/
/*
var PROPS = {
details: 1,
type: 1,
target: 1,
currentTarget: 1,
stopPropagation: 2,
stopImmediatePropagation: 2,
preventDefault: 2,
halt: 2
};
Y.EventFacade = function(e, currentTarget) {
if (e) {
Y.Object.each(PROPS, function(v, k) {
//this[k] = (v == 2) ? e[k].apply(e, arguments) : e[k];
var val = e[k];
if (val) {
this[k] = (v == 2) ? function() {
if (val) {
val.apply(e, arguments);
}
} : val;
} else {
console.log('missing ' + k);
}
});
}
};
*/
Y.EventFacade = function(e, currentTarget) {
e = e || {};
/**
* The arguments passed to fire
* @property details
* @type Array
*/
/**
* The event type
* @property type
* @type string
*/
//////////////////////////////////////////////////////
/**
* Node reference for the targeted eventtarget
* @propery target
* @type Node
*/
/**
* Node reference for the element that the listener was attached to.
* @propery currentTarget
* @type Node
*/
this.currentTarget = currentTarget;
/**
* Node reference to the relatedTarget
* @propery relatedTarget
* @type Node
*/
this.relatedTarget = e.relatedTarget;
/**
* Stops the propagation to the next bubble target
* @method stopPropagation
*/
this.stopPropagation = function() {
e.stopPropagation();
};
/**
* Stops the propagation to the next bubble target and
* prevents any additional listeners from being exectued
* on the current target.
* @method stopImmediatePropagation
*/
this.stopImmediatePropagation = function() {
};
/**
* Prevents the event's default behavior
* @method preventDefault
*/
this.preventDefault = function() {
e.preventDefault();
};
/**
* 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
*/
};
};
})();
/**
* Custom event engine, DOM event listener abstraction layer, synthetic DOM
* events.
* @module event
*/
/**
* Return value from all subscribe operations
* @class EventHandle
* @constructor
* @param evt {Event.Custom} the custom event
* @param sub {Subscriber} the subscriber
*/
var onsubscribeType = "_event:onsub",
AFTER = 'after',
CONFIGS = [
'broadcast',
'bubbles',
'context',
'configured',
'currentTarget',
'defaultFn',
'details',
'emitFacade',
'fireOnce',
'host',
'preventable',
'preventedFn',
'queuable',
'silent',
'stoppedFn',
'target',
'type'
],
FACADE = new Y.EventFacade(),
YUI3_SIGNATURE = 9;
/**
* The custom event
* @type Event.Custom
*/
/**
* The subscriber object
* @type Subscriber
*/
};
Y.EventHandle.prototype = {
/**
* Detaches this subscriber
* @method detach
*/
detach: function() {
if (this.evt) {
// Y.log('EventHandle.detach: ' + this.sub, 'info', 'Event');
}
}
};
/**
* The Event.Custom class lets you define events for your application
* that can be subscribed to by one or more independent component.
*
* @param {String} type The type of event, which is passed to the callback
* when the event fires
* @param o configuration object
* @class Event.Custom
* @constructor
*/
Y.CustomEvent = function(type, o) {
// if (arguments.length > 2) {
// this.log('CustomEvent context and silent are now in the config', 'warn', 'Event');
// }
o = o || {};
/**
* The type of event, returned to subscribers when the event fires
* @property type
* @type string
*/
/**
* The context the the event will fire from by default. Defaults to the YUI
* instance.
* @property context
* @type object
*/
this.context = Y;
/**
* If 0, this event does not broadcast. If 1, the YUI instance is notified
* every time this event fires. If 2, the YUI instance and the YUI global
* (if event is enabled on the global) are notified every time this event
* fires.
* @property broadcast
* @type int
*/
this.broadcast = 0;
/**
* By default all custom events are logged in the debug build, set silent
* to true to disable debug outpu for this event.
* @property silent
* @type boolean
*/
// this.queuable = !(this.logSystem);
this.queuable = false;
/**
* The subscribers to this event
* @property subscribers
* @type Subscriber{}
*/
this.subscribers = {};
/*
* The publisher has configured this event
* @property configured
* @type boolean
* @default true
*/
// this.configured = true;
/**
* 'After' subscribers
* @property afters
* @type Subscriber{}
*/
this.afters = {};
/**
* This event has fired if true
*
* @property fired
* @type boolean
* @default false;
*/
this.fired = false;
/**
* This event should only fire one time if true, and if
* it has fired, any new subscribers should be notified
* immediately.
*
* @property fireOnce
* @type boolean
* @default false;
*/
this.fireOnce = false;
/**
* Flag for stopPropagation that is modified during fire()
* 1 means to stop propagation to bubble targets. 2 means
* to also stop additional subscribers on this target.
* @property stopped
* @type int
*/
this.stopped = 0;
/**
* Flag for preventDefault that is modified during fire().
* if it is not 0, the default behavior for this event
* @property prevented
* @type int
*/
this.prevented = 0;
/**
* Specifies the host for this custom event. This is used
* to enable event bubbling
* @property host
* @type Event.Target
*/
this.host = null;
/**
* The default function to execute after event listeners
* have fire, but only if the default action was not
* prevented.
* @property defaultFn
* @type Function
*/
this.defaultFn = null;
/**
* The function to execute if a subscriber calls
* stopPropagation or stopImmediatePropagation
* @property stoppedFn
* @type Function
*/
this.stoppedFn = null;
/**
* The function to execute if a subscriber calls
* preventDefault
* @property preventedFn
* @type Function
*/
this.preventedFn = null;
/**
* Specifies whether or not this event's default function
* can be cancelled by a subscriber by executing preventDefault()
* on the event facade
* @property preventable
* @type boolean
* @default true
*/
this.preventable = true;
/**
* Specifies whether or not a subscriber can stop the event propagation
* via stopPropagation(), stopImmediatePropagation(), or halt()
* @property bubbles
* @type boolean
* @default true
*/
this.bubbles = true;
/**
* Supports multiple options for listener signatures in order to
* port YUI 2 apps.
* @property signature
* @type int
* @default 9
*/
this.signature = YUI3_SIGNATURE;
/**
* If set to true, the custom event will deliver an EventFacade object
* that is similar to a DOM event object.
* @property emitFacade
* @type boolean
* @default false
*/
this.emitFacade = false;
this.applyConfig(o, true);
// Only add subscribe events for events that are not generated by
// Event.Custom
if (type !== onsubscribeType) {
/**
* Custom events provide a custom event that fires whenever there is
* a new subscriber to the event. This provides an opportunity to
* handle the case where there is a non-repeating event that has
* already fired has a new subscriber.
*
* @event subscribeEvent
* @type Event.Custom
* @param {Function} fn The function to execute
* @param {Object} obj An object to be passed along when the event
* fires
* @param {boolean|Object} override If true, the obj passed in becomes
* the execution context of the listener.
* if an object, that object becomes the
* the execution context.
*/
context: this,
silent: true
});
}
};
Y.CustomEvent.prototype = {
_YUI_EVENT: true,
/**
* Apply configuration properties. Only applies the CONFIG whitelist
* @method applyConfig
* @param o hash of properties to apply
* @param force {boolean} if true, properties that exist on the event
* will be overwritten.
*/
applyConfig: function(o, force) {
if (o) {
}
},
if (!fn) {
}
var se = this.subscribeEvent, s;
if (se) {
}
// this._notify(s);
}
} else {
this.subscribers[s.id] = s;
}
return new Y.EventHandle(this, s);
},
/**
* Listen for this event
* @method subscribe
* @param {Function} fn The function to execute
* @return {EventHandle|EventTarget} unsubscribe handle or a
* chainable event target depending on the 'chain' config.
* @deprecated use on
*/
},
/**
* Listen for this event
* @method on
* @param {Function} fn The function to execute
* @return {EventHandle|EventTarget} unsubscribe handle or a
* chainable event target depending on the 'chain' config.
*/
},
/**
* Listen for this event after the normal subscribers have been notified and
* the default behavior has been applied. If a normal subscriber prevents the
* default behavior, it also prevents after listeners from firing.
* @method after
* @param {Function} fn The function to execute
* @return {EventHandle|EventTarget} unsubscribe handle or a
* chainable event target depending on the 'chain' config.
*/
},
/**
* Detach listeners.
* @method detach
* @param {Function} fn The subscribed function to remove, if not supplied
* all will be removed
* @param {Object} context The context object passed to subscribe.
* @return {boolean|EventTarget} returns a chainable event target
* or a boolean for legacy detach support.
*/
// if arg[0] typeof unsubscribe handle
}
if (!fn) {
return this.unsubscribeAll();
}
for (i in subs) {
if (subs.hasOwnProperty(i)) {
s = subs[i];
this._delete(s);
found = true;
}
}
}
return found;
},
/**
* Detach listeners.
* @method unsubscribe
* @param {Function} fn The subscribed function to remove, if not supplied
* all will be removed
* @param {Object} context The context object passed to subscribe.
* @return {boolean|EventTarget} returns a chainable event target
* or a boolean for legacy detach support.
* @deprecated use detach
*/
unsubscribe: function() {
},
_getFacade: function() {
if (!ef) {
}
// if the first argument is an object literal, apply the
// properties to the event facade
o2 = {};
// protect the event facade properties
// mix the data
// restore ef
}
// update the details field with the arguments
// ef.type = this.type;
return this._facade;
},
/**
* Notify a single subscriber
* @method _notify
* @param s {Subscriber} the subscriber
* @param args {Array} the arguments array to apply to the listener
* @private
*/
// emit an EventFacade if this is that sort of event
if (this.emitFacade) {
// @TODO object literal support to fire makes it possible for
// config info to be passed if we wish.
if (!ef) {
} else {
}
}
}
// the listener was bound to.
// @TODO this breaks some expectations documented here:
// confirm that their isn't a case that the bubbled
// context should be used.
// ct = (args && Y.Lang.isObject(args[0]) && args[0].currentTarget);
return false;
}
return true;
},
/**
* Logger abstraction to centralize the application of the silent flag
* @method log
* @param msg {string} message to log
* @param cat {string} log category
*/
if (!this.silent) {
}
},
/**
* Notifies the subscribers. The callback functions will be executed
* from the context specified when the event was created, and with the
* following parameters:
* <ul>
* <li>The type of event</li>
* <li>All of the arguments fire() was executed with as an array</li>
* <li>The custom object (if any) that was passed into the subscribe()
* method</li>
* </ul>
* @method fire
* @param {Object*} arguments an arbitrary set of parameters to pass to
* the handler.
* @return {boolean} false if one of the subscribers returned false,
* true otherwise
*/
fire: function() {
if (es) {
// var b = this.bubbles, h = this.host;
// if (b && h) {
// b = (h._yuievt.targets.length);
// }
// es.silent = (es.silent || this.silent);
// queue this event if the current item in the queue bubbles
// if (b && this.queuable && this.type != es.next.type) {
return true;
}
} else {
Y.Env._eventstack = {
// id of the first event in the stack
next: this,
stopped: 0,
prevented: 0,
queue: []
};
}
} else {
// var subs = this.subscribers.slice(), len=subs.length,
this.stopped = 0;
this.prevented = 0;
events = new Y.EventTarget({
fireOnce: true,
});
if (this.preventedFn) {
}
if (this.stoppedFn) {
}
this.fired = true;
// this.log("Firing " + this + ", " + "args: " + args);
hasSub = false;
ef = null;
if (this.emitFacade) {
// this.fire({
// foo: 1
// bar: 2
// }
// this.fire({
// bar: 2
// } // foo is still 1 unless we create a new facade
this._facade = null;
} else {
}
}
for (i in subs) {
if (subs.hasOwnProperty(i)) {
if (!hasSub) {
hasSub = true;
}
// stopImmediatePropagation
if (this.stopped == 2) {
break;
}
s = subs[i];
if (s && s.fn) {
if (false === ret) {
this.stopped = 2;
}
}
}
}
// bubble if this is hosted in an event target and propagation has not been stopped
// @TODO check if we need to worry about defaultFn order
}
// execute the default behavior if not prevented
// @TODO need context
}
// process after listeners. If the default behavior was
// prevented, the after events don't fire.
for (i in subs) {
if (subs.hasOwnProperty(i)) {
if (!hasSub) {
hasSub = true;
}
// stopImmediatePropagation
if (this.stopped == 2) {
break;
}
s = subs[i];
if (s && s.fn) {
if (false === ret) {
this.stopped = 2;
}
}
}
}
}
}
// console.log('clearing stack: ' + es.id + ', ' + this);
// reset propragation properties while processing the rest of the queue
// process queued events
// q[0] = the event, q[1] = arguments to fire
ce = q[0];
// Y.log('firing queued event ' + ce.type + ', from ' + this);
// set up stack to allow the next item to be processed
}
Y.Env._eventstack = null;
}
return (ret !== false);
},
/**
* Removes all listeners
* @method unsubscribeAll
* @return {int} The number of listeners unsubscribed
* @deprecated use detachAll
*/
unsubscribeAll: function() {
},
/**
* Removes all listeners
* @method detachAll
* @return {int} The number of listeners unsubscribed
*/
detachAll: function() {
for (i in subs) {
if (subs.hasOwnProperty(i)) {
l++;
}
}
this.subscribers={};
return l;
},
/**
* @method _delete
* @param subscriber object
* @private
*/
_delete: function(s) {
if (s) {
delete s.fn;
delete s.context;
delete this.subscribers[s.id];
}
},
/**
* @method toString
*/
toString: function() {
// return "{ CE '" + this.type + "' " + "id: " + this.id +
// ", host: " + (this.host && Y.stamp(this.host) + " }");
return this.type;
},
/**
* Stop propagation to bubble targets
* @method stopPropagation
*/
stopPropagation: function() {
this.stopped = 1;
},
/**
* Stops propagation to bubble targets, and prevents any remaining
* subscribers on the current target from executing.
* @method stopImmediatePropagation
*/
stopImmediatePropagation: function() {
this.stopped = 2;
},
/**
* Prevents the execution of this event's defaultFn
* @method preventDefault
*/
preventDefault: function() {
if (this.preventable) {
this.prevented = 1;
}
},
/**
* 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
*/
if (immediate) {
this.stopImmediatePropagation();
} else {
this.stopPropagation();
}
this.preventDefault();
}
};
/////////////////////////////////////////////////////////////////////
/**
* Stores the subscriber information to be used when the event fires.
* @param {Function} fn The wrapped function to execute
* @param {Object} context The value of the keyword 'this' in the listener
* @param {Array} args* 0..n additional arguments to supply the listener
*
* @class Subscriber
* @constructor
*/
/**
* The callback that will be execute when the event fires
* This is wrapped by Y.rbind if obj was supplied.
* @property fn
* @type Function
*/
/**
* Optional 'this' keyword for the listener
* @property context
* @type Object
*/
/**
* Unique subscriber id
* @property id
* @type String
*/
/**
* Optional additional arguments supplied to subscribe(). If present,
* these will be appended to the arguments supplied to fire()
* @property args
* @type Array
*/
// this.args = args;
/**
* }
* fn bound to obj with additional arguments applied via Y.rbind
* @property wrappedFn
* @type Function
*/
/**
* Custom events for a given fire transaction.
* @property events
* @type {EventTarget}
*/
this.events = null;
if (context) {
}
};
Y.Subscriber.prototype = {
/**
* Executes the subscriber.
* @method notify
* @param defaultContext The execution context if not overridden
* by the subscriber
* @param args {Array} Arguments array for the subscriber
* @param ce {Event.Custom} The custom event that sent the notification
*/
f = function() {
case 0:
break;
case 1:
break;
default:
}
};
// Ease debugging by only catching errors if we will not re-throw
// them.
f.call(this);
} else {
try {
f.call(this);
} catch(e) {
}
}
return ret;
},
/**
* Returns true if the fn and obj match this objects properties.
* Used by the unsubscribe method to match the right subscriber.
*
* @method contains
* @param {Function} fn the function to execute
* @param {Object} context optional 'this' keyword for the listener
* @return {boolean} true if the supplied arguments match this
* subscriber's signature.
*/
if (context) {
} else {
}
},
/**
* @method toString
*/
toString: function() {
return "Subscriber " + this.id;
}
};
// FACADE = new Y.EventFacade(new Y.CustomEvent('x'));
(function() {
/**
* Custom event engine, DOM event listener abstraction layer, synthetic DOM
* events.
* @module event
*/
/**
* EventTarget is designed to be used with Y.augment to wrap
* EventCustom in an interface that allows events to be listened to
* and fired by name. This makes it possible for implementing code to
* subscribe to an event that either has not been created yet, or will
* not be created at all.
*
* @Class Event.Target
*/
var L = Y.Lang,
PREFIX_DELIMITER = ':',
AFTER_PREFIX = '~AFTER~',
/**
* If the instance has a prefix attribute and the
* event type is not prefixed, the instance prefix is
* applied to the supplied type.
* @method _getType
*/
return type;
}
var t = type,
// Y.log("pre: " + pre, 'info', 'event');
t = pre + PREFIX_DELIMITER + t;
}
// Y.log("type: " + t, 'info', 'event');
return t;
},
/**
* Returns an array with the detach key (if provided),
* and the prefixed event name from _getType
* Y.on('detachkey, menu:click', fn)
* @method _parseType
* @private
*/
return type;
}
if (i > -1) {
after = true;
// Y.log(t);
}
t = parts[1];
}
},
/**
* An event target can fire events and be targeted by events.
* @class EventTarget
* @param opts a configuration object
* @config emitFacade {boolean} if true, all events will emit event
* facade payloads by default (default false)
* @config prefix {string} the prefix to apply to non-prefixed event names
* chaining, otherwise they return an EventHandle (default false)
*/
// console.log('Event.Target constructor executed: ' + this._yuid);
this._yuievt = {
events: {},
targets: {},
config: o,
defaults: {
context: this,
host: this,
emitFacade: o.emitFacade,
}
};
};
/**
* Subscribe to a custom event hosted by this object
* @method on
* @param type {string} The type of the event
* @param fn {Function} The callback
* @return the event target or a detach handle per 'chain' config
*/
f = fn;
c = context;
ret = {};
if (v) {
c = v.context || c;
}
args[1] = f;
args[2] = c;
}, this);
} else if (L.isFunction(type)) {
}
if (this instanceof YUI) {
// check for the existance of an event adaptor
// check to see if the target is an Event.Target. If so,
// delegate to it (the Event.Target should handle whether
// or not the prefix was included);
// } else if (o && !(o instanceof YUI) && o.getEvent) {
// a = Y.Array(arguments, 0, true);
// a.splice(2, 1);
// return o.on.apply(o, a);
}
}
// Y.log('parts: ' + parts);
if (detachkey) {
}
// Y.log('storing: ' + key);
}
},
/**
* subscribe to an event
* @method subscribe
* @deprecated use on
*/
subscribe: function() {
},
/**
* Detach one or more listeners the from the specified event
* @method detach
* @param type {string|Object} Either the handle to the subscriber or the
* type of event. If the type
* is not specified, it will attempt to remove
* the listener from all hosted events.
* @param fn {Function} The subscribed function to unsubscribe, if not
* supplied, all subscribers will be removed.
* @param context {Object} The custom object passed to subscribe. This is
* optional, but if supplied will be used to
* disambiguate multiple listeners that are the same
* (e.g., you subscribe many object using a function
* that lives on the prototype)
* @return {EventTarget} the host
*/
if (detachkey) {
if (details) {
}
}
// If this is an event handle, use it to detach
}
// The YUI instance handles DOM events and adaptors
if (this instanceof YUI) {
// use the adaptor specific detach code if
// DOM event fork
}
}
if (type) {
if (ce) {
}
} else {
for (i in evts) {
if (evts.hasOwnProperty(i)) {
}
}
return ret;
}
},
/**
* detach a listener
* @method unsubscribe
* @deprecated use detach
*/
unsubscribe: function() {
},
/**
* Removes all listeners from the specified event. If the event type
* is not specified, all listeners from all hosted custom events will
* be removed.
* @method unsubscribeAll
* @param type {string} The type, or name of the event
*/
},
/**
* Removes all listeners from the specified event. If the event type
* is not specified, all listeners from all hosted custom events will
* be removed.
* @method unsubscribeAll
* @param type {string} The type, or name of the event
* @deprecated use detachAll
*/
unsubscribeAll: function() {
},
/**
* Creates a new custom event of the specified type. If a custom event
* by that name already exists, it will not be re-created. In either
* case the custom event is returned.
*
* @method publish
*
* @param type {string} the type, or name of the event
* @param opts {object} optional config params. Valid properties are:
*
* <ul>
* <li>
* 'broadcast': whether or not the YUI instance and YUI global are notified when the event is fired (false)
* </li>
* <li>
* 'bubbles': whether or not this event bubbles (true)
* </li>
* <li>
* 'context': the default execution context for the listeners (this)
* </li>
* <li>
* 'defaultFn': the default function to execute when this event fires if preventDefault was not called
* </li>
* <li>
* 'emitFacade': whether or not this event emits a facade (false)
* </li>
* <li>
* 'prefix': the prefix for this targets events, e.g., 'menu' in 'menu:click'
* </li>
* <li>
* 'fireOnce': if an event is configured to fire once, new subscribers after
* the fire will be notified immediately.
* </li>
* <li>
* 'preventable': whether or not preventDefault() has an effect (true)
* </li>
* <li>
* 'preventedFn': a function that is executed when preventDefault is called
* </li>
* <li>
* 'queuable': whether or not this event can be queued during bubbling (false)
* </li>
* <li>
* 'silent': if silent is true, debug messages are not provided for this event.
* </li>
* <li>
* 'stoppedFn': a function that is executed when stopPropagation is called
* </li>
* <li>
* 'type': the event type (valid option if not provided as the first parameter to publish)
* </li>
* </ul>
*
* @return {Event.Custom} the custom event
*
*/
ret = {};
}, this);
return ret;
}
//if (ce && !ce.configured) {
if (ce) {
// ce.log("publish applying config to published event: '"+type+"' exists", 'info', 'event');
// This event could have been published
// ce.configured = true;
} else {
o = opts || {};
// apply defaults
if (o.onSubscribeCallback) {
}
}
},
/**
* Registers another Event.Target as a bubble target. Bubble order
* is determined by the order registered. Multiple targets can
* be specified.
* @method addTarget
* @param o {Event.Target} the target to add
*/
addTarget: function(o) {
this._yuievt.hasTargets = true;
},
/**
* Removes a bubble target
* @method removeTarget
* @param o {Event.Target} the target to remove
*/
removeTarget: function(o) {
},
/**
* Fire a custom event by name. The callback functions will be executed
* from the context specified when the event was created, and with the
* following parameters.
*
* If the custom event object hasn't been created, then the event hasn't
* been published and it has no subscribers. For performance sake, we
* immediate exit in this case. This means the event won't bubble, so
* if the intention is that a bubble target be notified, the event must
* be published on this object first.
*
* @method fire
* @param type {String|Object} The type of the event, or an object that contains
* a 'type' property.
* @param arguments {Object*} an arbitrary set of parameters to pass to
* the handler.
* @return {boolean} the return value from Event.Custom.fire
*
*/
t = _getType(this, t);
// this event has not been published or subscribed to
if (!ce) {
// if this object has bubble targets, we need to publish the
// event in order for it to bubble.
if (this._yuievt.hasTargets) {
}
// otherwise there is nothing to be done
ret = true;
} else {
// clear target for next fire()
}
},
/**
* Returns the custom event of the provided type has been created, a
* falsy value otherwise
* @method getEvent
* @param type {string} the type, or name of the event
* @return {Event.Custom} the custom event or null
*/
},
/**
* Propagate an event
* @method bubble
* @param evt {Event.Custom} the custom event to propagate
* @return {boolean} the aggregated return value from Event.Custom.fire
*/
// Y.log('Bubbling ' + evt.type);
for (i in targs) {
if (targs.hasOwnProperty(i)) {
t = targs[i];
// if this event was not published on the bubble target,
// publish it with sensible default properties
if (!ce) {
// publish the event on the bubble target using this event
// for its configuration
// ce.configured = false;
// set the host and context appropriately
// clear handlers if specified on this event
ce.preventedFn = null;
}
ce.currentTarget = t;
// ce.target = evt.target;
// stopPropagation() was called
break;
}
}
}
}
return ret;
},
/**
* Subscribe to a custom event hosted by this object. The
* supplied callback will execute after any listeners add
* via the subscribe method, and after the default function,
* if configured for the event, has executed.
* @method after
* @param type {string} The type of the event
* @param fn {Function} The callback
* @return the event target or a detach handle per 'chain' config
*/
var a = Y.Array(arguments, 0, true);
case 'function':
case 'object':
a[0]._after = true;
break;
default:
}
},
/**
* Executes the callback before a DOM event, custom event
* or method. If the first argument is a function, it
* is assumed the target is a method. For DOM and custom
* events, this is an alias for Y.on.
*
* For DOM and custom events:
* type, callback, context, 1-n arguments
*
* For methods:
* callback, object (method host), methodName, context, 1-n arguments
*
* @method before
* @return detach handle
* @deprecated use the on method
*/
before: function() {
}
};
Y.EventTarget = ET;
// make Y an event target
bubbles: false
});
})();