Class zwt.model.ModelEventManager

A model event manager is used by a model to process model events and dispatch them to the appropriate handlers.

Handlers are methods previously registered on the event manager to handle a specific type of event. A typical handler method has two input parameters: the object that triggered the event and the event. An optional object argument may also be passed to the handler if it was provided when dispatching the event to the event manager (see zwt.event.EventManager#onEvent).

Defined in: ModelEventManager.js.

Class Summary
Constructor Attributes	Constructor Name and Description
	zwt.model.ModelEventManager(zwt_model_Model_model) Construct a model event manager and attach it to the specified model.

Method Summary
Method Attributes	Method Name and Description
	addNotifyHandler(function_handler) Add a model notify handler.
	onEvent(zwt_model_ModelEvent_event, zwt_model_Model_overrideModel, object_arg) Dispatch the specified model event to the appropriate handlers.
	removeNotifyHandler(function_handler) Remove a model notify handler.

Methods borrowed from class zwt.event.EventManager:: addHandler, addHandlers, removeHandler, removeHandlers

Class Detail

zwt.model.ModelEventManager(zwt_model_Model_model)

Construct a model event manager and attach it to the specified model.
Author: Jeremy KUHN.

Parameters:
{zwt.model.Model} zwt_model_Model_model: The model to monitor

See:: zwt.model.ModelEvent

Method Detail

addNotifyHandler(function_handler)

Add a model notify handler.

Parameters:
{Function} function_handler: The handler to add

onEvent(zwt_model_ModelEvent_event, zwt_model_Model_overrideModel, object_arg)

Dispatch the specified model event to the appropriate handlers.

Parameters:
{zwt.model.ModelEvent} zwt_model_ModelEvent_event: The event to dispatch
{zwt.model.Model} zwt_model_Model_overrideModel: If set it overrides the model object passed to the handlers which is the model managed by the event manager by default
{zwt.Object} object_arg: An optional object to pass to the handler method

removeNotifyHandler(function_handler)

Remove a model notify handler.

Parameters:
{Function} function_handler: The handler to add

Classes

Class zwt.model.ModelEventManager