INTEGRATION: CWS vcl07 (1.7.2); FILE ADDED

2003/04/08 14:29:06 obr 1.7.2.1: re-added accessibility workbench

1 files changed, 203 insertions, 0 deletions

diff --git a/toolkit/test/accessibility/TopWindowListener.java b/toolkit/test/accessibility/TopWindowListener.java
new file mode 100644
index 000000000000..d9dfae58b874
--- /dev/null
+++ b/toolkit/test/accessibility/TopWindowListener.java
@@ -0,0 +1,203 @@
+import com.sun.star.awt.XWindow;
+import drafts.com.sun.star.awt.XExtendedToolkit;
+import drafts.com.sun.star.accessibility.XAccessible;
+import drafts.com.sun.star.accessibility.XAccessibleContext;
+import com.sun.star.uno.XInterface;
+import com.sun.star.uno.UnoRuntime;
+import javax.swing.event.TreeModelEvent;
+
+/** Listen for top window events and create or delete children of the tree
+    model accordingly.
+*/
+class TopWindowListener
+{
+    TopWindowListener (AccessibilityTreeModel aModel, SimpleOffice aOffice)
+    {
+        maModel = aModel;
+        maOffice = aOffice;
+    }
+
+
+
+
+    /** Use this function to initially fill the accessibility object tree
+        view with nodes for top level windows.
+    */
+    public void Initialize ()
+    {
+        XExtendedToolkit xToolkit = maOffice.getExtendedToolkit();
+        if (xToolkit != null)
+        {
+            maModel.lock ();
+            int nTopWindowCount = xToolkit.getTopWindowCount();
+            for (int i=0; i<nTopWindowCount; i++)
+            {
+                try
+                {
+                    XAccessible xAccessible = maOffice.getAccessibleObject(
+                        xToolkit.getTopWindow (i));
+                    // Uncomment the following line to get the real root of
+                    //   the accessible tree that xAccessible belongs to.
+                    // xAccessible = maOffice.getAccessibleRoot(xAccessible);
+                    AddTopLevelNode (xAccessible);
+                }
+                catch (Exception e)
+                {
+                    System.out.println ("caught exception: " + e);
+                    e.printStackTrace();
+                }
+            }
+            maModel.unlock ((AccessibleTreeNode)maModel.getRoot());
+        }
+    }
+
+
+
+    /** Add a new top level node which, to be exact, will be placed on the
+        second layer of the tree.
+        @param xNewTopLevelObject
+            The accessible object of the new top level window.
+    */
+    private void AddTopLevelNode (XAccessible xNewTopLevelObject)
+    {
+        if (xNewTopLevelObject != null)
+        {
+            XAccessibleContext xContext = xNewTopLevelObject.getAccessibleContext();
+            if (xContext == null)
+                System.out.println ("top level window not accessible");
+            else
+            {
+                if ( ! FilterTopLevelNode (xContext))
+                {
+                    Object aRootObject = maModel.getRoot();
+                    if (aRootObject instanceof VectorNode)
+                    {
+                        VectorNode aRoot = (VectorNode) aRootObject;
+                        AccessibleTreeNode aNode =
+                            NodeFactory.Instance().createDefaultNode (xNewTopLevelObject, aRoot);
+                        aRoot.addChild (aNode);
+                        maModel.fireTreeNodesInserted (maModel.createEvent (aRoot, aNode));
+                    }
+                }
+            }
+        }
+    }
+
+    /** Ignore windows that have no accessible name, i.e. do not represent
+        document windows.
+        @return
+            Returns <true/> when the given object should not be displayed,
+            i.e. filtered out.
+    */
+    private boolean FilterTopLevelNode (XAccessibleContext xContext)
+    {
+        // No filtering at the moment.
+        return false;
+        //        return xContext.getAccessibleName().length() == 0;
+    }
+
+
+
+
+    /** Remove an existing top level node from the tree.
+        @param xNewTopLevelObject
+            The accessible object to remove.
+    */
+    private void RemoveTopLevelNode (XAccessible xTopLevelObject)
+    {
+        Object aObject = maModel.getRoot();
+        if (aObject instanceof VectorNode && xTopLevelObject != null)
+        {
+            System.out.println ("removing node " + xTopLevelObject);
+            VectorNode aRoot = (VectorNode) aObject;
+            maModel.removeNode (xTopLevelObject.getAccessibleContext());
+        }
+    }
+
+
+
+
+
+    /**  This method exists for debugging.  It prints a list of all top
+         level windows.
+    */
+    private void ShowAllTopLevelWindows ()
+    {
+        XExtendedToolkit xToolkit = maOffice.getExtendedToolkit();
+        if (xToolkit != null)
+        {
+            int nTopWindowCount = xToolkit.getTopWindowCount();
+            for (int i=0; i<nTopWindowCount; i++)
+            {
+                try
+                {
+                    System.out.println (i + " : " + xToolkit.getTopWindow (i));
+                }
+                catch (Exception e)
+                {
+                    System.out.println ("caught exception; " + e);
+                }
+            }
+        }
+    }
+
+
+
+
+    // XTopWindowListener
+    public void windowOpened (final com.sun.star.lang.EventObject aEvent)
+        throws RuntimeException
+    {
+        if (maModel != null)
+        {
+            XWindow xWindow = (XWindow) UnoRuntime.queryInterface(
+                XWindow.class, aEvent.Source);
+            if (xWindow == null)
+                System.out.println ("event source is no XWindow");
+            else
+            {
+                XAccessible xAccessible = maOffice.getAccessibleObject(xWindow);
+                if (xAccessible == null)
+                    System.out.println ("event source is no XAccessible");
+                else
+                    AddTopLevelNode (xAccessible);
+            }
+        }
+    }
+
+
+
+
+    public void windowClosed (final com.sun.star.lang.EventObject aEvent)
+        throws RuntimeException
+    {
+        if (maModel != null)
+        {
+            XWindow xWindow = (XWindow) UnoRuntime.queryInterface(
+                XWindow.class, aEvent.Source);
+            if (xWindow == null)
+                System.out.println ("event source is no XWindow");
+            else
+            {
+                XAccessible xAccessible = maOffice.getAccessibleObject(xWindow);
+                if (xAccessible == null)
+                    System.out.println ("event source is no XAccessible");
+                else
+                    RemoveTopLevelNode (xAccessible);
+            }
+        }
+    }
+
+    public void disposing (final com.sun.star.lang.EventObject aEvent)
+    {
+        System.out.println ("Top window disposed: " + aEvent);
+    }
+
+
+
+
+    private AccessibilityTreeModel
+        maModel;
+    private SimpleOffice
+        maOffice;
+}