| /************************************************************** |
| * |
| * 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 com.sun.star.accessibility.XAccessibleContext; |
| |
| import java.util.HashMap; |
| |
| abstract class NodeMapCallback |
| { |
| public abstract void Apply (AccTreeNode aNode); |
| } |
| |
| /** This map translates from XAccessible objects to our internal |
| representations. |
| */ |
| class NodeMap |
| { |
| public NodeMap () |
| { |
| maXAccessibleToNode = new HashMap (); |
| } |
| |
| /** Clear the whole map. |
| */ |
| public void Clear () |
| { |
| maXAccessibleToNode.clear(); |
| } |
| |
| /** @return |
| whether the new node was different from a previous one |
| repspectively was the first one set. |
| */ |
| public boolean InsertNode (XAccessibleContext xContext, AccessibleTreeNode aNode) |
| { |
| AccessibleTreeNode aPreviousNode = (AccessibleTreeNode)maXAccessibleToNode.put ( |
| xContext, |
| aNode); |
| return aPreviousNode != aNode; |
| } |
| |
| protected void RemoveNode (AccessibleTreeNode aNode) |
| { |
| try |
| { |
| if ((aNode != null) && (aNode instanceof AccTreeNode)) |
| { |
| maXAccessibleToNode.remove (((AccTreeNode)aNode).getContext()); |
| } |
| } |
| catch (Exception e) |
| { |
| System.out.println ("caught exception while removing node " |
| + aNode + " : " + e); |
| e.printStackTrace(); |
| } |
| } |
| |
| |
| public void ForEach (NodeMapCallback aFunctor) |
| { |
| Object[] aNodes = maXAccessibleToNode.values().toArray(); |
| for (int i=0; i<aNodes.length; i++) |
| { |
| if (aNodes[i] != null && (aNodes[i] instanceof AccTreeNode)) |
| { |
| try |
| { |
| aFunctor.Apply ((AccTreeNode)aNodes[i]); |
| } |
| catch (Exception e) |
| { |
| System.out.println ("caught exception applying functor to " |
| + i + "th node " + aNodes[i] + " : " + e); |
| e.printStackTrace(); |
| } |
| } |
| } |
| } |
| |
| AccessibleTreeNode GetNode (XAccessibleContext xContext) |
| { |
| return (AccessibleTreeNode)maXAccessibleToNode.get (xContext); |
| } |
| |
| AccessibleTreeNode GetNode (Object aObject) |
| { |
| if (aObject instanceof XAccessibleContext) |
| return GetNode ((XAccessibleContext)aObject); |
| else |
| return null; |
| } |
| |
| XAccessibleContext GetAccessible (AccessibleTreeNode aNode) |
| { |
| if ((aNode != null) && (aNode instanceof AccTreeNode)) |
| return ((AccTreeNode)aNode).getContext(); |
| else |
| return null; |
| } |
| |
| boolean IsMember (XAccessibleContext xContext) |
| { |
| return maXAccessibleToNode.containsKey(xContext); |
| } |
| |
| boolean ValueIsMember (AccessibleTreeNode aNode) |
| { |
| return maXAccessibleToNode.containsValue(aNode); |
| } |
| |
| |
| |
| private HashMap maXAccessibleToNode; |
| } |