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If no listeners are registered, triggerEvent does nothing now.

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This commit is contained in:
ahocevar
2012-06-25 06:30:54 +02:00
parent 87459deb65
commit f962b78caa
1 changed files with 14 additions and 11 deletions
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9
src/ol/event/Events.js
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@@ -248,11 +248,13 @@ ol.event.Events.prototype.unregister = function(type, listener, opt_scope,
* an 'object' property referencing this Events instance.
*
* @return {boolean} The last listener return. If a listener returns false,
* the chain of listeners will stop getting called.
* the chain of listeners will stop getting called. Returns undefined if
* called for an event type that has no listeners.
*/
ol.event.Events.prototype.triggerEvent = function(type, opt_evt) {
var returnValue,
listeners = goog.events.getListeners(this, type, true)
var returnValue;
if (this.listenerCount_[type] > 0) {
var listeners = goog.events.getListeners(this, type, true)
.concat(goog.events.getListeners(this, type, false));
if (arguments.length === 1) {
opt_evt = {'type': type};
@@ -264,6 +266,7 @@ ol.event.Events.prototype.triggerEvent = function(type, opt_evt) {
break;
}
}
}
return returnValue;
};