new ol.Observable()
Fires:
-
change(ol.events.Event) - Generic change event. Triggered when the revision counter is increased.
Subclasses
Extends
Methods
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ol.Observable.unByKey(key)
src/ol/observable.js, line 43 -
Removes an event listener using the key returned by
on()oronce().Name Type Description keyol.EventsKey | Array.<ol.EventsKey> The key returned by
on()oronce()(or an array of keys). -
changed()
src/ol/observable.js, line 58 -
Increases the revision counter and dispatches a 'change' event.
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dispatchEvent(event)
src/ol/observable.js, line 75 -
Dispatches an event and calls all listeners listening for events of this type. The event parameter can either be a string or an Object with a
typeproperty.Name Type Description eventObject | ol.events.Event | string Event object.
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getRevision(){number}
src/ol/observable.js, line 84 -
Get the version number for this object. Each time the object is modified, its version number will be incremented.
Returns:
Revision.
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Listen for a certain type of event.
Name Type Description typestring | Array.<string> The event type or array of event types.
listenerfunction The listener function.
thisObject The object to use as
thisinlistener.Returns:
Unique key for the listener. If called with an array of event types as the first argument, the return will be an array of keys.
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Listen once for a certain type of event.
Name Type Description typestring | Array.<string> The event type or array of event types.
listenerfunction The listener function.
thisObject The object to use as
thisinlistener.Returns:
Unique key for the listener. If called with an array of event types as the first argument, the return will be an array of keys.
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un(type, listener, opt_this)
src/ol/observable.js, line 147 -
Unlisten for a certain type of event.
Name Type Description typestring | Array.<string> The event type or array of event types.
listenerfunction The listener function.
thisObject The object which was used as
thisby thelistener.
OpenLayers