| /************************************************************** |
| * |
| * 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. |
| * |
| *************************************************************/ |
| |
| |
| import javax.swing.tree.TreeModel; |
| import javax.swing.tree.TreePath; |
| import javax.swing.event.TreeModelListener; |
| import javax.swing.event.TreeModelEvent; |
| |
| import java.util.Vector; |
| import java.util.HashMap; |
| import java.util.Enumeration; |
| |
| import com.sun.star.accessibility.*; |
| import com.sun.star.uno.*; |
| |
| import com.sun.star.uno.UnoRuntime; |
| import com.sun.star.uno.XInterface; |
| import com.sun.star.uno.Any; |
| import com.sun.star.lang.EventObject; |
| import com.sun.star.lang.XServiceInfo; |
| import com.sun.star.lang.XServiceName; |
| |
| /** Objects of this class (usually one, singleton?) listen to accessible |
| events of all objects in all trees. |
| */ |
| public class EventListener |
| { |
| public boolean mbVerbose = false; |
| |
| public EventListener (AccessibilityTreeModel aTreeModel) |
| { |
| maTreeModel = aTreeModel; |
| } |
| |
| |
| private static String objectToString(Object aObject) |
| { |
| if (aObject == null) |
| return null; |
| else |
| return aObject.toString(); |
| } |
| |
| |
| |
| /** This method handles accessibility objects that are being disposed. |
| */ |
| public void disposing (XAccessibleContext xContext) |
| { |
| if (mbVerbose) |
| System.out.println("disposing " + xContext); |
| maTreeModel.removeNode (xContext); |
| } |
| |
| /** This method is called from accessible objects that broadcast |
| modifications of themselves or from their children. The event is |
| processed only, except printing some messages, if the tree is not |
| locked. It should be locked during changes to its internal |
| structure like expanding nodes. |
| */ |
| public void notifyEvent (AccessibleEventObject aEvent) |
| { |
| EventHandler aHandler; |
| |
| switch (aEvent.EventId) |
| { |
| case AccessibleEventId.CHILD: |
| aHandler = new ChildEventHandler (aEvent, maTreeModel); |
| break; |
| |
| case AccessibleEventId.BOUNDRECT_CHANGED: |
| case AccessibleEventId.VISIBLE_DATA_CHANGED: |
| aHandler = new GeometryEventHandler (aEvent, maTreeModel); |
| break; |
| |
| |
| case AccessibleEventId.NAME_CHANGED: |
| case AccessibleEventId.DESCRIPTION_CHANGED: |
| case AccessibleEventId.STATE_CHANGED: |
| case AccessibleEventId.SELECTION_CHANGED: |
| aHandler = new ContextEventHandler (aEvent, maTreeModel); |
| break; |
| |
| case AccessibleEventId.TABLE_MODEL_CHANGED: |
| case AccessibleEventId.TABLE_CAPTION_CHANGED: |
| case AccessibleEventId.TABLE_COLUMN_DESCRIPTION_CHANGED: |
| case AccessibleEventId.TABLE_COLUMN_HEADER_CHANGED: |
| case AccessibleEventId.TABLE_ROW_DESCRIPTION_CHANGED: |
| case AccessibleEventId.TABLE_ROW_HEADER_CHANGED: |
| case AccessibleEventId.TABLE_SUMMARY_CHANGED: |
| aHandler = new TableEventHandler (aEvent, maTreeModel); |
| break; |
| |
| case AccessibleEventId.ACTION_CHANGED: |
| aHandler = new EventHandler (aEvent, maTreeModel); |
| break; |
| |
| case AccessibleEventId.HYPERTEXT_CHANGED: |
| aHandler = new EventHandler (aEvent, maTreeModel); |
| break; |
| |
| case AccessibleEventId.ACTIVE_DESCENDANT_CHANGED: |
| case AccessibleEventId.CARET_CHANGED: |
| case AccessibleEventId.TEXT_CHANGED: |
| case AccessibleEventId.VALUE_CHANGED: |
| aHandler = new EventHandler (aEvent, maTreeModel); |
| break; |
| |
| default: |
| aHandler = null; |
| break; |
| } |
| |
| if (aHandler == null) |
| System.out.println (" unhandled event"); |
| else |
| { |
| if (mbVerbose) |
| aHandler.Print (System.out); |
| aHandler.Process (); |
| } |
| } |
| |
| |
| private AccessibilityTreeModel maTreeModel; |
| } |