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+/*************************************************************************
+ *
+ * $RCSfile: ToolkitNode.java,v $
+ *
+ * $Revision: 1.1 $
+ *
+ * last change: $Author: obr $ $Date: 2003/09/19 09:21:41 $
+ *
+ * The Contents of this file are made available subject to the terms of
+ * either of the following licenses
+ *
+ * - GNU Lesser General Public License Version 2.1
+ * - Sun Industry Standards Source License Version 1.1
+ *
+ * Sun Microsystems Inc., October, 2000
+ *
+ * GNU Lesser General Public License Version 2.1
+ * =============================================
+ * Copyright 2000 by Sun Microsystems, Inc.
+ * 901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ *
+ * Sun Industry Standards Source License Version 1.1
+ * =================================================
+ * The contents of this file are subject to the Sun Industry Standards
+ * Source License Version 1.1 (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.openoffice.org/license.html.
+ *
+ * Software provided under this License is provided on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ * See the License for the specific provisions governing your rights and
+ * obligations concerning the Software.
+ *
+ * The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ * Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ * All Rights Reserved.
+ *
+ * Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+package org.openoffice.accessibility.awb.tree;
+
+import com.sun.star.accessibility.AccessibleRole;
+import com.sun.star.accessibility.XAccessible;
+import com.sun.star.accessibility.XAccessibleContext;
+
+import com.sun.star.awt.XExtendedToolkit;
+import com.sun.star.awt.XTopWindow;
+
+import com.sun.star.uno.UnoRuntime;
+
+import javax.swing.SwingUtilities;
+import javax.swing.tree.DefaultMutableTreeNode;
+
+/**
+ *
+ */
+public class ToolkitNode extends DefaultMutableTreeNode
+ implements com.sun.star.awt.XTopWindowListener {
+
+ protected XExtendedToolkit xToolkit;
+
+ private AccessibilityModel treeModel;
+
+ /** Creates a new instance of TopWindowListener */
+ public ToolkitNode(XExtendedToolkit xToolkit, AccessibilityModel treeModel) {
+ super("<connected>");
+ this.xToolkit = xToolkit;
+ this.treeModel = treeModel;
+
+ // Initially fill the child list
+ try {
+ for (int i=0,j=xToolkit.getTopWindowCount(); i<j; i++) {
+ XTopWindow xTopWindow = xToolkit.getTopWindow(i);
+ if (xTopWindow != null) {
+ AccessibilityNode an = getTopWindowNode(xTopWindow);
+ if (an != null) {
+ add(an);
+ // Calling oneway methods from an UNO thread may cause
+ // deadlocks, so adding the listeners here.
+ an.setAttached(true);
+ }
+ }
+ }
+ } catch (com.sun.star.lang.IndexOutOfBoundsException e) {
+ // This should never happen since we properly check the count
+ // before - anyway returning what we got so far.
+ }
+ }
+
+ /** Returns an AccessibilityNode if xAccessible has a valid toplevel */
+ private AccessibilityNode getTopWindowNode(XAccessible xAccessible) {
+ XAccessibleContext xAC = xAccessible.getAccessibleContext();
+ if (xAC != null) {
+ short role = xAC.getAccessibleRole();
+ if ((role == AccessibleRole.FRAME) || (role == AccessibleRole.DIALOG) || (role == AccessibleRole.WINDOW)) {
+ return treeModel.createWindowNode(xAccessible, xAC);
+ }
+ }
+ return null;
+ }
+
+ /** Returns an AccessibilityNode if xAccessible has a valid toplevel */
+ private AccessibilityNode getTopWindowNode(XAccessible xAccessible, XAccessibleContext xAC) {
+ if (xAC != null) {
+ short role = xAC.getAccessibleRole();
+ if ((role == AccessibleRole.FRAME) || (role == AccessibleRole.DIALOG) || (role == AccessibleRole.WINDOW)) {
+ AccessibilityNode parent = treeModel.createWindowNode(xAccessible, xAC);
+ if (parent != null) {
+ try {
+ int n = xAC.getAccessibleChildCount();
+ for (int i=0; i<n; i++) {
+ AccessibilityNode child = treeModel.createNode(xAC.getAccessibleChild(i));
+ if (child != null) {
+ parent.add(child);
+ }
+ }
+ } catch (com.sun.star.lang.IndexOutOfBoundsException e) {
+
+ }
+ }
+ return parent;
+ }
+ }
+ return null;
+ }
+
+ /** Returns the XAccessible interface corresponding to the toplevel window */
+ private AccessibilityNode getTopWindowNode(XTopWindow w) {
+ XAccessible xAccessible = (XAccessible)
+ UnoRuntime.queryInterface(XAccessible.class, w);
+ if (xAccessible != null) {
+ // XTopWindows usually have an accessible parent, which is the
+ // native container window ..
+ XAccessibleContext xAC = xAccessible.getAccessibleContext();
+ if (xAC != null) {
+ XAccessible xParent = xAC.getAccessibleParent();
+ if (xParent != null) {
+ AccessibilityNode parent = getTopWindowNode(xParent);
+ AccessibilityNode child = treeModel.createNode(xAccessible);
+ if (parent != null && child != null) {
+ parent.add(child);
+ }
+ return parent;
+ } else {
+ return getTopWindowNode(xAccessible, xAC);
+ }
+ }
+ }
+ return null;
+ }
+
+ public void disposing(com.sun.star.lang.EventObject eventObject) {
+ // FIXME : message
+ // prevent setRoot from removing this as event listener
+ xToolkit = null;
+ treeModel.setRoot(treeModel.disconnectedRootNode);
+ }
+
+ public void windowActivated(com.sun.star.lang.EventObject eventObject) {
+ }
+
+ public void windowClosed(com.sun.star.lang.EventObject eventObject) {
+ XAccessible xAccessible = (XAccessible) UnoRuntime.queryInterface(
+ XAccessible.class, eventObject.Source);
+ if (xAccessible != null) {
+ AccessibilityNode node = treeModel.findNode(xAccessible);
+
+ // The object implementing XTopWindow is often not the toplevel
+ // accessible object.
+ if (node != null && node.getParent() != this) {
+ node = (AccessibilityNode) node.getParent();
+ }
+
+ if (node != null) {
+ final AccessibilityNode an = node;
+ Runnable removeRun = new Runnable() {
+ public void run() {
+ try {
+ treeModel.removeNodeFromParent(an);
+ // Calling oneway methods from an UNO thread may cause
+ // deadlocks, so removing the listeners here.
+ an.setAttached(false);
+ } catch (IllegalArgumentException e) {
+ // for some toplevel we get more than one event -
+ // ignoring
+ }
+ }
+ };
+ SwingUtilities.invokeLater(removeRun);
+ }
+ }
+ }
+
+ public void windowClosing(com.sun.star.lang.EventObject eventObject) {
+ }
+
+ public void windowDeactivated(com.sun.star.lang.EventObject eventObject) {
+ }
+
+ public void windowMinimized(com.sun.star.lang.EventObject eventObject) {
+ }
+
+ public void windowNormalized(com.sun.star.lang.EventObject eventObject) {
+ }
+
+ public void windowOpened(com.sun.star.lang.EventObject eventObject) {
+ final XTopWindow xTopWindow = (XTopWindow) UnoRuntime.queryInterface(
+ XTopWindow.class, eventObject.Source);
+ if (xTopWindow != null) {
+ final ToolkitNode tn = this;
+ Runnable addNodeRun = new Runnable() {
+ public void run() {
+ // Note: UNO does not allow to make synchronous callbacks
+ // to oneway calls, so we have to fetch the node here.
+ AccessibilityNode an = getTopWindowNode(xTopWindow);
+ if (an != null) {
+ treeModel.addNodeInto(an, tn);
+ // Calling oneway methods from an UNO thread may cause
+ // deadlocks, so adding the listeners here.
+ an.setAttached(true);
+ }
+ }
+ };
+ SwingUtilities.invokeLater(addNodeRun);
+ }
+ }
+}