| /************************************************************** |
| * |
| * 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 org.openoffice.accessibility.misc.AccessibleEventMulticaster; |
| |
| import javax.swing.tree.DefaultMutableTreeNode; |
| import javax.swing.SwingUtilities; |
| |
| import com.sun.star.accessibility.AccessibleEventId; |
| import com.sun.star.accessibility.AccessibleEventObject; |
| import com.sun.star.accessibility.XAccessible; |
| import com.sun.star.accessibility.XAccessibleContext; |
| import com.sun.star.accessibility.XAccessibleEventBroadcaster; |
| import com.sun.star.accessibility.XAccessibleEventListener; |
| |
| import com.sun.star.uno.UnoRuntime; |
| |
| class AccessibilityNode extends DefaultMutableTreeNode implements XAccessible, |
| XAccessibleEventListener, XAccessibleEventBroadcaster { |
| |
| protected AccessibilityModel treeModel; |
| protected XAccessibleContext unoAccessibleContext; |
| |
| private XAccessibleEventListener listener; |
| |
| public AccessibilityNode(AccessibilityModel treeModel) { |
| this.treeModel = treeModel; |
| } |
| |
| protected void finalize() throws java.lang.Throwable { |
| if (userObject != null) { |
| treeModel.removeNode(userObject); |
| } |
| } |
| |
| /** Sets the XAccessibleContext object of this node */ |
| public void setAccessibleContext(XAccessibleContext xAccessibleContext) { |
| unoAccessibleContext = xAccessibleContext; |
| } |
| |
| /** Returns the XAccessibleContext object of this node */ |
| public XAccessibleContext getAccessibleContext() { |
| return unoAccessibleContext; |
| } |
| |
| /** Attaches or Detaches the itself as listener to unoAccessibleContext */ |
| protected void setAttached(boolean attach) { |
| XAccessibleContext xAccessibleContext = unoAccessibleContext; |
| if (xAccessibleContext != null) { |
| try { |
| XAccessibleEventBroadcaster xAccessibleEventBroadcaster = |
| UnoRuntime.queryInterface( XAccessibleEventBroadcaster.class, xAccessibleContext ); |
| if (xAccessibleEventBroadcaster != null) { |
| if (attach) { |
| xAccessibleEventBroadcaster.addEventListener(this); |
| } else { |
| xAccessibleEventBroadcaster.removeEventListener(this); |
| } |
| } |
| } catch (com.sun.star.uno.RuntimeException e) { |
| // FIXME: error message ! |
| } |
| } |
| } |
| |
| public void disposing(com.sun.star.lang.EventObject eventObject) { |
| XAccessibleEventListener localListener = this.listener; |
| if (localListener != null) { |
| localListener.disposing(eventObject); |
| } |
| |
| treeModel.removeNode(userObject); |
| userObject = null; |
| unoAccessibleContext = null; |
| // FIXME: mark the object as being disposed in the tree view ! |
| } |
| |
| protected void handleChildRemoved(XAccessible xAccessible) { |
| final AccessibilityNode node = treeModel.findNode(xAccessible); |
| if (node != null) { |
| SwingUtilities.invokeLater(new java.lang.Runnable() { |
| public void run() { |
| treeModel.removeNodeFromParent(node); |
| } |
| }); |
| } |
| } |
| |
| protected void handleChildAdded(XAccessible xAccessible) { |
| final AccessibilityNode parent = this; |
| final AccessibilityNode node = treeModel.createNode(xAccessible); |
| if (node != null) { |
| SwingUtilities.invokeLater(new java.lang.Runnable() { |
| public void run() { |
| try { |
| XAccessibleContext xAC = node.getAccessibleContext(); |
| if (xAC != null) { |
| treeModel.insertNodeInto(node, parent, |
| xAC.getAccessibleIndexInParent()); |
| } |
| } catch (com.sun.star.uno.RuntimeException e) { |
| // FIXME: output |
| } |
| } |
| }); |
| } |
| } |
| |
| public void notifyEvent(AccessibleEventObject accessibleEventObject) { |
| if (accessibleEventObject.EventId == AccessibleEventId.CHILD) { |
| XAccessible xAccessible = UnoRuntime.queryInterface( XAccessible.class, accessibleEventObject.OldValue ); |
| if (xAccessible != null) { |
| handleChildRemoved(xAccessible); |
| } |
| |
| xAccessible = UnoRuntime.queryInterface( XAccessible.class, accessibleEventObject.NewValue ); |
| if (xAccessible != null) { |
| handleChildAdded(xAccessible); |
| } |
| } |
| |
| XAccessibleEventListener localListener = this.listener; |
| if (localListener != null) { |
| localListener.notifyEvent(accessibleEventObject); |
| } |
| } |
| |
| public synchronized void addEventListener(com.sun.star.accessibility.XAccessibleEventListener xAccessibleEventListener) { |
| listener = AccessibleEventMulticaster.add(listener, xAccessibleEventListener); |
| } |
| |
| public synchronized void removeEventListener(com.sun.star.accessibility.XAccessibleEventListener xAccessibleEventListener) { |
| listener = AccessibleEventMulticaster.remove(listener, xAccessibleEventListener); |
| } |
| } |
| |
| |