| /************************************************************** |
| * |
| * 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.openoffice.accessibility.awb.tree; |
| |
| import javax.swing.SwingUtilities; |
| import javax.swing.tree.TreeNode; |
| import javax.swing.tree.MutableTreeNode; |
| import javax.swing.tree.DefaultMutableTreeNode; |
| |
| import com.sun.star.uno.UnoRuntime; |
| import com.sun.star.awt.XExtendedToolkit; |
| import com.sun.star.awt.XTopWindow; |
| import com.sun.star.awt.XTopWindowListener; |
| import com.sun.star.accessibility.AccessibleRole; |
| import com.sun.star.accessibility.XAccessible; |
| import com.sun.star.accessibility.XAccessibleContext; |
| import com.sun.star.accessibility.XAccessibleEventBroadcaster; |
| import com.sun.star.accessibility.XAccessibleEventListener; |
| |
| /** |
| * |
| */ |
| public abstract class AccessibilityModel extends javax.swing.tree.DefaultTreeModel { |
| |
| protected java.util.Hashtable nodeList; |
| protected static DefaultMutableTreeNode disconnectedRootNode = |
| new DefaultMutableTreeNode("<not connected>"); |
| |
| /** Creates a new instance of AccessibilityModel */ |
| public AccessibilityModel() { |
| super(disconnectedRootNode, false); |
| nodeList = new java.util.Hashtable(); |
| } |
| |
| /* Convenience method that creates a new Toolkit node from xToolkit |
| * and sets as the new root object of the tree. |
| */ |
| public synchronized void setRoot(XExtendedToolkit xToolkit) { |
| if (xToolkit != null) { |
| try { |
| // remove old root node as topwindow listener |
| if (getRoot() instanceof ToolkitNode) { |
| ToolkitNode tn = (ToolkitNode) getRoot(); |
| if (tn.xToolkit != null) { |
| tn.xToolkit.removeTopWindowListener(tn); |
| } |
| } |
| nodeList.clear(); |
| setRoot(new ToolkitNode(xToolkit, this)); |
| xToolkit.addTopWindowListener((ToolkitNode) getRoot()); |
| } catch (com.sun.star.uno.RuntimeException e) { |
| // FIXME: error message ! |
| } |
| } |
| } |
| |
| /* Appends the new child to parent's child list */ |
| public void addNodeInto(MutableTreeNode newChild, MutableTreeNode parent) { |
| int index = parent.getChildCount(); |
| if (newChild != null && newChild.getParent() == parent) { |
| index -= 1; |
| } |
| insertNodeInto(newChild, parent, index); |
| } |
| |
| /** Adds listener to the listener chain of node */ |
| public static void addEventListener(TreeNode node, XAccessibleEventListener listener) { |
| if (node instanceof AccessibilityNode) { |
| ((AccessibilityNode) node).addEventListener(listener); |
| } |
| } |
| |
| /** Removes listener from the listener chain of node */ |
| public static void removeEventListener(TreeNode node, XAccessibleEventListener listener) { |
| if (node instanceof AccessibilityNode) { |
| ((AccessibilityNode) node).removeEventListener(listener); |
| } |
| } |
| |
| protected abstract AccessibilityNode createWindowNode(XAccessible xAccessible, |
| XAccessibleContext xAccessibleContext); |
| protected abstract AccessibilityNode createNode(XAccessible xAccessible); |
| |
| /** Adds xAccessible,node to the internal hashtable */ |
| public AccessibilityNode putNode(XAccessible xAccessible, AccessibilityNode node) { |
| if (xAccessible != null) { |
| String oid = UnoRuntime.generateOid(xAccessible); |
| java.lang.ref.WeakReference ref = (java.lang.ref.WeakReference) |
| nodeList.put(oid, new java.lang.ref.WeakReference(node)); |
| if (ref != null) { |
| return (AccessibilityNode) ref.get(); |
| } |
| } |
| return null; |
| } |
| |
| /** Returns the AccessibilityNode for xAccessible */ |
| public AccessibilityNode findNode(XAccessible xAccessible) { |
| if (xAccessible != null) { |
| String oid = UnoRuntime.generateOid(xAccessible); |
| java.lang.ref.WeakReference ref = |
| (java.lang.ref.WeakReference) nodeList.get(oid); |
| if (ref != null) { |
| return (AccessibilityNode) ref.get(); |
| } |
| } |
| return null; |
| } |
| |
| /** Removes the AccessibilityNode for xAccessible from the internal hashtable */ |
| public AccessibilityNode removeNode(XAccessible xAccessible) { |
| if (xAccessible != null) { |
| String oid = UnoRuntime.generateOid(xAccessible); |
| java.lang.ref.WeakReference ref = |
| (java.lang.ref.WeakReference) nodeList.remove(oid); |
| if (ref != null) { |
| return (AccessibilityNode) ref.get(); |
| } |
| } |
| return null; |
| } |
| |
| public AccessibilityNode removeNode(Object o) { |
| if (o instanceof XAccessible) { |
| return removeNode((XAccessible) o); |
| } |
| return null; |
| } |
| } |