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1   /*
2    * Copyright 2004-2008 the Seasar Foundation and the Others.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
13   * either express or implied. See the License for the specific language
14   * governing permissions and limitations under the License.
15   */
16  package org.seasar.uruma.binding.method.impl;
17  
18  import org.eclipse.jface.viewers.StructuredViewer;
19  import org.seasar.uruma.annotation.EventListenerType;
20  import org.seasar.uruma.binding.method.EventListenerDef;
21  import org.seasar.uruma.binding.method.GenericDoubleClickListener;
22  import org.seasar.uruma.binding.method.GenericSelectionChangedListener;
23  import org.seasar.uruma.binding.method.ListenerBinder;
24  import org.seasar.uruma.binding.method.MethodBinding;
25  import org.seasar.uruma.context.PartContext;
26  import org.seasar.uruma.context.WidgetHandle;
27  
28  /**
29   * {@link StructuredViewer} のための {@link ListenerBinder} です。<br />
30   * 
31   * @author y-komori
32   */
33  public class StructuredViewerListenerBinder implements ListenerBinder {
34      private static final EventListenerType[] SUPPORT_TYPES = new EventListenerType[] {
35              EventListenerType.SELECTION, EventListenerType.MOUSE_DOUBLE_CLICK };
36  
37      /*
38       * @see org.seasar.uruma.binding.method.ListenerBinder#bindListener(org.seasar.uruma.context.WidgetHandle,
39       *      org.seasar.uruma.context.PartContext,
40       *      org.seasar.uruma.binding.method.MethodBinding,
41       *      org.seasar.uruma.binding.method.EventListenerDef)
42       */
43      public Class<?> bindListener(final WidgetHandle handle,
44              final PartContext context, final MethodBinding binding,
45              final EventListenerDef def) {
46          StructuredViewer viewer = handle.<StructuredViewer> getCastWidget();
47          if (def.getType() == EventListenerType.SELECTION) {
48              GenericSelectionChangedListener listener = new GenericSelectionChangedListener(
49                      context, binding);
50              viewer.addSelectionChangedListener(listener);
51              return GenericSelectionChangedListener.class;
52          } else if (def.getType() == EventListenerType.MOUSE_DOUBLE_CLICK) {
53              GenericDoubleClickListener listener = new GenericDoubleClickListener(
54                      context, binding);
55              viewer.addDoubleClickListener(listener);
56              return GenericDoubleClickListener.class;
57          }
58          return null;
59      }
60  
61      /*
62       * @see org.seasar.uruma.binding.method.ListenerBinder#getEventTypes()
63       */
64      public EventListenerType[] getEventTypes() {
65          return SUPPORT_TYPES;
66      }
67  
68      /*
69       * @see org.seasar.uruma.binding.method.ListenerBinder#getTargetCLass()
70       */
71      public Class<?> getTargetCLass() {
72          return StructuredViewer.class;
73      }
74  
75  }