| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.cocoon.forms.formmodel; |
| |
| import org.apache.cocoon.forms.FormsException; |
| import org.apache.cocoon.forms.event.ActionEvent; |
| import org.apache.cocoon.forms.event.ActionListener; |
| import org.apache.cocoon.forms.event.WidgetEventMulticaster; |
| |
| /** |
| * The {@link WidgetDefinition} part of a Action widget, see {@link Action} for more information. |
| * |
| * @version $Id$ |
| */ |
| public class ActionDefinition extends AbstractWidgetDefinition { |
| private String actionCommand; |
| private ActionListener listener; |
| |
| public void setActionCommand(String actionCommand) { |
| this.actionCommand = actionCommand; |
| } |
| |
| /** |
| * initialize this definition with the other, sort of like a copy constructor |
| */ |
| public void initializeFrom(WidgetDefinition definition) throws Exception { |
| super.initializeFrom(definition); |
| |
| if (!(definition instanceof ActionDefinition)) { |
| throw new FormsException("Ancestor definition " + definition.getClass().getName() + " is not an ActionDefinition.", |
| getLocation()); |
| } |
| |
| ActionDefinition other = (ActionDefinition) definition; |
| |
| this.actionCommand = other.actionCommand; |
| this.listener = other.listener; |
| } |
| |
| public String getActionCommand() { |
| return actionCommand; |
| } |
| |
| public Widget createInstance() { |
| return new Action(this); |
| } |
| |
| public void addActionListener(ActionListener listener) { |
| checkMutable(); |
| this.listener = WidgetEventMulticaster.add(this.listener, listener); |
| } |
| |
| public void fireActionEvent(ActionEvent event) { |
| if (this.listener != null) { |
| this.listener.actionPerformed(event); |
| } |
| } |
| |
| public boolean hasActionListeners() { |
| return this.listener != null; |
| } |
| } |