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/*
* Copyright 2006 Mat Gessel <mat.gessel@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.litesoft.GWT.client.widgets.nonpublic.external;
import java.util.*;
import com.google.gwt.user.client.EventListener;
import com.google.gwt.user.client.ui.*;
/**
* An interface implemented by widgets which support event handling via
* controllers.
*/
public interface ControllerSupport extends EventListener
{
/**
* Sets the controllers which will process events on this widget. Clears out
* the current controllers, if any. When the widget is added to the DOM,
* received events will be delegated to each controller which declares the
* event's type via
* {@link asquare.gwt.tk.client.ui.behavior.EventDelegate#getEventBits() getEventBits()}.
*
* @param controllers a list of 0 or more controllers, or <code>null</code>
*/
void setControllers( List controllers );
/**
* Gets a controller with the specified id. The id is often an interface or
* base class, as controllers can have multiple implementations. Used to
* modify the behavior of existing widgets.
*
* @param id a Class identifying the type of controller to get
*
* @return the first controller matching the id, or <code>null</code>
*/
Controller getController( Class id );
/**
* Adds a controller to process events on this widget. Multiple controllers
* may be added.
*
* @param controller a controller to add
*
* @return the widget this call was made on (for convenience)
*/
Widget addController( Controller controller );
/**
* Removes a controller
*
* @param controller a controller to remove
*
* @return the widget this call was made on (for convenience)
*
* @throws IllegalArgumentException if <code>controller</code> is not present
*/
Widget removeController( Controller controller );
}
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Revision |
Author |
Commited |
Message |
2
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GeorgeS
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Sun 07 Feb, 2010 12:50:58 +0000 |
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