| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 1999, 2000 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "The Jakarta Project", "Ant", and "Apache Software |
| * Foundation" must not be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| package org.apache.tools.ant.gui.event; |
| import org.apache.tools.ant.gui.acs.*; |
| import org.apache.tools.ant.gui.command.Command; |
| import org.apache.tools.ant.gui.command.DisplayErrorCmd; |
| import org.apache.tools.ant.gui.core.AppContext; |
| |
| import java.lang.reflect.Array; |
| import java.util.*; |
| |
| /** |
| * Event indicating that the current set of selected targets has changed. |
| * |
| * @version $Revision$ |
| * @author Simeon Fitch |
| */ |
| public class ElementSelectionEvent extends AntEvent { |
| |
| /** New set of selected elements. */ |
| private ACSElement[] _selected = null; |
| |
| /** |
| * Standard ctor. |
| * |
| * @param context application context. |
| * @param selected the selected Elements. |
| */ |
| protected ElementSelectionEvent(AppContext context, |
| ACSElement[] selected) { |
| super(context); |
| _selected = selected; |
| } |
| |
| /** |
| * Current set of selected elements. |
| * |
| * @return selected element set. |
| */ |
| public ACSElement[] getSelectedElements() { |
| return _selected; |
| } |
| |
| |
| /** |
| * Get only those events of a specific type. |
| * |
| * @param type Specific type to get values for, or null if none. |
| */ |
| protected ACSElement[] getFiltered(Class type) { |
| ACSElement[] retval = null; |
| List vals = new ArrayList(1); |
| if(_selected != null) { |
| for(int i = 0; i < _selected.length; i++) { |
| if(type.isInstance(_selected[i])) { |
| vals.add(_selected[i]); |
| } |
| } |
| } |
| |
| if(vals.size() > 0) { |
| retval = (ACSElement[]) Array.newInstance(type, vals.size()); |
| vals.toArray(retval); |
| } |
| return retval; |
| } |
| |
| /** |
| * Factory method for creating the appropriate specialization of this |
| * for communicating an element selection. |
| * |
| * @param context App context. |
| * @param selected The set of selected events. The last elemetn in the |
| * array is used to determine the specialization of this |
| * that should be returned. |
| * @return Event to communicate selection to. |
| */ |
| public static ElementSelectionEvent createEvent(AppContext context, |
| ACSElement[] selected) { |
| ElementSelectionEvent retval = null; |
| |
| if(selected != null && selected.length > 0) { |
| Class type = selected[selected.length - 1].getClass(); |
| if(type.isAssignableFrom(ACSTargetElement.class)) { |
| retval = new TargetSelectionEvent(context, selected); |
| } |
| else if(type.isAssignableFrom(ACSTaskElement.class)) { |
| retval = new TaskSelectionEvent(context, selected); |
| } |
| else if(type.isAssignableFrom(ACSPropertyElement.class)) { |
| retval = new PropertySelectionEvent(context, selected); |
| } |
| else if(type.isAssignableFrom(ACSProjectElement.class)) { |
| retval = new ProjectSelectedEvent( |
| context, (ACSProjectElement) selected[0]); |
| } |
| else { |
| // For elements without a specific event |
| // type just send and instance of this. |
| retval = new ElementSelectionEvent(context, selected); |
| } |
| } |
| else { |
| retval = new NullSelectionEvent(context); |
| } |
| |
| return retval; |
| } |
| } |