/*
* $Id:$
* IzPack - Copyright 2001-2008 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/ http://izpack.codehaus.org/
*
* Copyright 2006 Klaus Bartz
*
* 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 com.izforge.izpack.installer;
/**
* Interface for a gui listener. This interface can be used to modify the installer frame of IzPack.
*
* @author Klaus Bartz
*/
public interface GUIListener
{
/**
* Constant to indicate that method buildGUI has called
*/
static final int GUI_BUILDED = 0;
/**
* Constant to indicate that method blockGUI has called
*/
static final int GUI_BLOCKED = 1;
/**
* Constant to indicate that method releaseGUI has called
*/
static final int GUI_RELEASED = 2;
/**
* Constant to indicate that method switchPanel has called
*/
static final int PANEL_SWITCHED = 3;
/**
* This method will be called from the installer frame at end of the methods buildGUI, blockGUI,
* releaseGUI and switchPanel.<br>
* <p/>
* The param what indicates from what method this listener was called.<br>
* If buildGUI is the calling method, the navigation panel will be set as param. At other
* calling methods param will be null.
*
* @param what identifier for the calling method
* @param param
*/
void guiActionPerformed(int what, Object param);
}