Class: EventEmitter

F. EventEmitter

new EventEmitter()

Provides observer pattern for basic eventing. Directly uses Backbone.Events
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Methods

listenTo(other, event, callback)

An inversion-of-control version of on. Tell this object to listen to an event in another object keeping track of what it's listening to.
Parameters:
Name Type Description
other Object The object to listen to
event String Name of the event to listen to
callback Function Callback to execute when the event is triggered
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off(event, callback, context)

Remove one or many callbacks. If context is null, removes all callbacks with that function. If callback is null, removes all callbacks for the event. If events is null, removes all bound callbacks for all events.
Parameters:
Name Type Argument Description
event String <optional>
 Name of the event that is being listened to
callback Function <optional>
 Callback to remove
context Object <optional>
 Remove callbacks with the specified context
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on(event, callback, context)

Bind one or more space separated events, or an events map, to a callback function. Passing "all" will bind the callback to all events fired.
Parameters:
Name Type Argument Description
event String Event to listen to
callback Function Callback to execute when the event is triggered
context Object <optional>
 The value of this when the callback runs
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once(event, callback, context)

Bind events to only be triggered a single time. After the first time the callback is invoked, it will be removed.
Parameters:
Name Type Argument Description
event String Name of the event to listen to
callback Function Callback to execute when the event is triggered
context Object <optional>
 The value of this when the callback runs
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stopListening(other, event, callback)

Tell this object to stop listening to either specific events or to every object it's currently listening to.
Parameters:
Name Type Argument Description
other Object <optional>
 The object that is being listened to
event String <optional>
 Name of the event that is being listened to
callback Function <optional>
 Callback to remove
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trigger(event, args)

Trigger one or many events, firing all bound callbacks. Callbacks are passed the same arguments as trigger is, apart from the event name (unless you're listening on "all", which will cause your callback to receive the true name of the event as the first argument).
Parameters:
Name Type Argument Description
event String Name of the event to trigger
args Mixed <optional>
<repeatable>
 Arguments to pass to callback functions
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