Class zwt.ui.tree.TreeModelEventManager

Extends zwt.event.EventManager.

A tree model event manager is used by a tree model to process tree 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.

Defined in: TreeModelEventManager.js.

Class Summary
Constructor Attributes	Constructor Name and Description
	zwt.ui.tree.TreeModelEventManager(zwt_ui_tree_TreeModel_model) Construct a tree model event manager and attach it to the specified tree model.

Method Summary
Method Attributes	Method Name and Description
	addCollapseHandler(function_handler) Add a collapse handler.
	addDeleteHandler(function_handler) Add a delete handler.
	addExpandHandler(function_handler) Add an expand handler.
	addInsertHandler(function_handler) Add an insert handler.
	addResetHandler(function_handler) Add a reset handler.
	addUpdateHandler(function_handler) Add an update handler.
	onEvent(zwt_ui_tree_TreeModelEvent_event, zwt_ui_tree_TreeModel_overrideModel, object_arg) Dispatch the specified tree model event to the appropriate handlers.
	removeCollapseHandler(function_handler) Remove a collapse handler.
	removeDeleteHandler(function_handler) Remove a delete handler.
	removeExpandHandler(function_handler) Remove an expand handler.
	removeInsertHandler(function_handler) Remove an insert handler.
	removeResetHandler(function_handler) Remove a reset handler.
	removeUpdateHandler(function_handler) Remove an update handler.

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

Class Detail

zwt.ui.tree.TreeModelEventManager(zwt_ui_tree_TreeModel_model)

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

Parameters:
{zwt.ui.tree.TreeModel} zwt_ui_tree_TreeModel_model: The tree model to monitor

See:: zwt.ui.tree.TreeModelEvent

Method Detail

addCollapseHandler(function_handler)

Add a collapse handler.

Parameters:
{Function} function_handler: The handler to add

addDeleteHandler(function_handler)

Add a delete handler.

Parameters:
{Function} function_handler: The handler to add

addExpandHandler(function_handler)

Add an expand handler.

Parameters:
{Function} function_handler: The handler to add

addInsertHandler(function_handler)

Add an insert handler.

Parameters:
{Function} function_handler: The handler to add

addResetHandler(function_handler)

Add a reset handler.

Parameters:
{Function} function_handler: The handler to add

addUpdateHandler(function_handler)

Add an update handler.

Parameters:
{Function} function_handler: The handler to add

onEvent(zwt_ui_tree_TreeModelEvent_event, zwt_ui_tree_TreeModel_overrideModel, object_arg)

Dispatch the specified tree model event to the appropriate handlers.

Parameters:
{zwt.ui.tree.TreeModelEvent} zwt_ui_tree_TreeModelEvent_event: The tree model event to dispatch
{zwt.ui.tree.TreeModel} zwt_ui_tree_TreeModel_overrideModel: If set it overrides the tree model object passed to the handlers which is the tree model managed by the event manager by default
{zwt.Object} object_arg: An optional object to pass to the handler method

removeCollapseHandler(function_handler)

Remove a collapse handler.

Parameters:
{Function} function_handler: The handler to remove

removeDeleteHandler(function_handler)

Remove a delete handler.

Parameters:
{Function} function_handler: The handler to remove

removeExpandHandler(function_handler)

Remove an expand handler.

Parameters:
{Function} function_handler: The handler to remove

removeInsertHandler(function_handler)

Remove an insert handler.

Parameters:
{Function} function_handler: The handler to remove

removeResetHandler(function_handler)

Remove a reset handler.

Parameters:
{Function} function_handler: The handler to remove

removeUpdateHandler(function_handler)

Remove an update handler.

Parameters:
{Function} function_handler: The handler to remove

Classes

Class zwt.ui.tree.TreeModelEventManager