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//
// $Id$
//
// Narya library - tools for developing networked games
// Copyright (C) 2002-2012 Three Rings Design, Inc., All Rights Reserved
// http://code.google.com/p/narya/
//
// This library is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package com.threerings.crowd.client {
import com.threerings.crowd.data.PlaceConfig;
import com.threerings.crowd.data.PlaceObject;
import com.threerings.crowd.util.CrowdContext;
/**
* Provides an extensible mechanism for encapsulating delegated
* functionality that works with the place services.
*
* <p> Thanks to Java's lack of multiple inheritance, it will likely
* become necessary to factor certain services that might be used by a
* variety of {@link PlaceController} derived classes into delegate
* classes because they do not fit into the single inheritance hierarchy
* that makes sense for a particular application. To facilitate this
* process, this delegate class is provided which the standard place
* controller can be made to call out to for all of the standard methods.
*/
public class PlaceControllerDelegate
{
/**
* Constructs the delegate with the controller for which it is
* delegating.
*/
public function PlaceControllerDelegate (controller :PlaceController)
{
_controller = controller;
}
/**
* Called to initialize the delegate.
*/
public function init (ctx :CrowdContext, config :PlaceConfig) :void
{
}
/**
* Called to let the delegate know that we're entering a place.
*/
public function willEnterPlace (plobj :PlaceObject) :void
{
}
/**
* Called before a request is submitted to the server to leave the
* current place. The request to leave may be rejected, but if a place
* controller needs to make a final communication to the place manager
* before it leaves, it should so do here. This is the only place in
* which the controller is guaranteed to be able to communicate to the
* place manager, as by the time {@link #didLeavePlace} is called, the
* place manager may have already been destroyed.
*/
public function mayLeavePlace (plobj :PlaceObject) :void
{
}
/**
* Called to let the delegate know that we've left the place.
*/
public function didLeavePlace (plobj :PlaceObject) :void
{
}
/**
* Called to give the delegate a chance to handle controller actions
* that weren't handled by the main controller.
*/
public function handleAction (cmd :String, arg :Object) :Boolean
{
return false;
}
/** A reference to the controller for which we are delegating. */
protected var _controller :PlaceController;
}
}
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