1 files changed, 346 insertions, 0 deletions
diff --git a/toolkit/test/accessibility/AccTreeNode.java b/toolkit/test/accessibility/AccTreeNode.java
new file mode 100644
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+++ b/toolkit/test/accessibility/AccTreeNode.java
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+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+import com.sun.star.accessibility.XAccessible;
+import com.sun.star.accessibility.XAccessibleComponent;
+import com.sun.star.accessibility.XAccessibleContext;
+import com.sun.star.accessibility.XAccessibleEditableText;
+import com.sun.star.accessibility.XAccessibleSelection;
+import com.sun.star.accessibility.XAccessibleTable;
+import com.sun.star.accessibility.XAccessibleText;
+import com.sun.star.uno.UnoRuntime;
+
+/**
+ * The node type for the AccessibleTreeModel.
+ * This implements all the child-handling based on the appropriate
+ * NodeHandlers. Trivial nodes can be implemented by any Object
+ * type.
+ */
+class AccTreeNode
+    extends AccessibleTreeNode
+{
+    private class HandlerDescriptor
+    {
+        private HandlerDescriptor (NodeHandler aHandler)
+        {
+            maHandler = aHandler;
+            mnChildCount = -1;
+        }
+        private NodeHandler maHandler;
+        private int mnChildCount;
+    }
+    /// NodeHandlers for this node
+    private ArrayList<HandlerDescriptor> maHandlers;
+
+    // The accessible context of this node.
+    private XAccessibleContext mxContext;
+    private XAccessibleComponent mxComponent;
+    private XAccessibleText mxText;
+    private XAccessibleTable mxTable;
+
+    public AccTreeNode (XAccessibleContext xContext, Object aDisplay, AccessibleTreeNode aParent)
+    {
+        super (aDisplay, aParent);
+
+        maHandlers = new ArrayList<HandlerDescriptor>(5);
+        mxContext = xContext;
+    }
+
+    /** Update the internal data extracted from the corresponding accessible
+        object.  This is done by replacing every handler by a new one.  An
+        update method at each handler would be better of course.
+    */
+    @Override
+    public void update ()
+    {
+        for (int i=0; i<maHandlers.size(); i++)
+        {
+            System.out.println ("replacing handler " + i);
+            HandlerDescriptor aDescriptor = maHandlers.get(i);
+            aDescriptor.maHandler = aDescriptor.maHandler.createHandler (mxContext);
+            aDescriptor.mnChildCount =
+                    aDescriptor.maHandler.getChildCount ();
+        }
+    }
+
+    public XAccessibleContext getContext ()
+    {
+        return mxContext;
+    }
+
+    public XAccessibleComponent getComponent ()
+    {
+        if (mxComponent == null && mxContext != null)
+            mxComponent = UnoRuntime.queryInterface(
+                XAccessibleComponent.class, mxContext);
+        return mxComponent;
+    }
+
+    public XAccessibleText getText ()
+    {
+        if (mxText == null && mxContext != null)
+            mxText = UnoRuntime.queryInterface(
+                XAccessibleText.class, mxContext);
+        return mxText;
+    }
+
+    public XAccessibleEditableText getEditText ()
+    {
+        return UnoRuntime.queryInterface(
+                XAccessibleEditableText.class, mxContext);
+    }
+
+    public XAccessibleTable getTable ()
+    {
+        if (mxTable == null && mxContext != null)
+            mxTable = UnoRuntime.queryInterface(
+                XAccessibleTable.class, mxContext);
+        return mxTable;
+    }
+
+
+    public XAccessibleSelection getSelection ()
+    {
+        return UnoRuntime.queryInterface(
+                XAccessibleSelection.class, mxContext);
+    }
+
+    public void addHandler( NodeHandler aHandler )
+    {
+        if (aHandler != null)
+            maHandlers.add (new HandlerDescriptor (aHandler));
+    }
+
+
+    /** iterate over handlers and return child sum */
+    private HandlerDescriptor getHandlerDescriptor (int i)
+    {
+        HandlerDescriptor aDescriptor = maHandlers.get(i);
+        if (aDescriptor.mnChildCount < 0)
+            aDescriptor.mnChildCount =
+                    aDescriptor.maHandler.getChildCount ();
+        return aDescriptor;
+    }
+
+    @Override
+    public int getChildCount()
+    {
+        int nChildCount = 0;
+        for (int i = 0; i < maHandlers.size(); i++)
+        {
+            HandlerDescriptor aDescriptor = getHandlerDescriptor (i);
+            nChildCount += aDescriptor.mnChildCount;
+        }
+        return nChildCount;
+    }
+
+    /** iterate over handlers until the child is found */
+    @Override
+    public AccessibleTreeNode getChild (int nIndex)
+        throws IndexOutOfBoundsException
+    {
+        if( nIndex >= 0 )
+        {
+            for(int i = 0; i < maHandlers.size(); i++)
+            {
+                // check if this handler has the child, and if not
+                // search with next handler
+                HandlerDescriptor aDescriptor = getHandlerDescriptor (i);
+                if (nIndex < aDescriptor.mnChildCount)
+                    return aDescriptor.maHandler.getChild (this, nIndex);
+                else
+                    nIndex -= aDescriptor.mnChildCount;
+            }
+        }
+        else
+            throw new IndexOutOfBoundsException();
+
+        // nothing found?
+        return null;
+    }
+
+    @Override
+    public AccessibleTreeNode getChildNoCreate (int nIndex)
+        throws IndexOutOfBoundsException
+    {
+        if( nIndex >= 0 )
+        {
+            for(int i = 0; i < maHandlers.size(); i++)
+            {
+                // check if this handler has the child, and if not
+                // search with next handler
+                HandlerDescriptor aDescriptor = getHandlerDescriptor (i);
+                if (nIndex < aDescriptor.mnChildCount)
+                    return aDescriptor.maHandler.getChildNoCreate (nIndex);
+                else
+                    nIndex -= aDescriptor.mnChildCount;
+            }
+        }
+        else
+            throw new IndexOutOfBoundsException();
+
+        // nothing found?
+        return null;
+    }
+
+    @Override
+    public boolean removeChild (int nIndex)
+        throws IndexOutOfBoundsException
+    {
+        boolean bStatus = false;
+        if (nIndex >= 0)
+        {
+            for (int i=0; i<maHandlers.size(); i++)
+            {
+                // check if this handler has the child, and if not
+                // search with next handler
+                HandlerDescriptor aDescriptor = getHandlerDescriptor (i);
+                if (nIndex < aDescriptor.mnChildCount)
+                {
+                    bStatus = aDescriptor.maHandler.removeChild (nIndex);
+                    aDescriptor.mnChildCount = aDescriptor.maHandler.getChildCount ();
+                    break;
+                }
+                else
+                    nIndex -= aDescriptor.mnChildCount;
+            }
+        }
+        else
+            throw new IndexOutOfBoundsException();
+
+        return bStatus;
+    }
+
+
+    @Override
+    public int indexOf (AccessibleTreeNode aNode)
+    {
+        int nBaseIndex = 0;
+        if (aNode != null)
+        {
+            for (int i=0; i<maHandlers.size(); i++)
+            {
+                HandlerDescriptor aDescriptor = getHandlerDescriptor (i);
+                int nIndex = aDescriptor.maHandler.indexOf (aNode);
+                if (nIndex >= 0)
+                    return nBaseIndex + nIndex;
+                else
+                    nBaseIndex += aDescriptor.mnChildCount;
+            }
+        }
+
+        return -1;
+    }
+
+    /** this node is a leaf if have no handlers, or is those
+            handlers show no children */
+    @Override
+    public boolean isLeaf()
+    {
+        return maHandlers.isEmpty();
+    }
+
+    @Override
+    public boolean equals (Object aOther)
+    {
+        return (this == aOther) || (aOther!=null && aOther.equals(mxContext));
+    }
+
+
+    /** iterate over handlers until the child is found */
+    public void getActions(java.util.List<String> aActions)
+    {
+        for(int i = 0; i < maHandlers.size(); i++)
+        {
+            HandlerDescriptor aDescriptor = getHandlerDescriptor (i);
+            NodeHandler aHandler = aDescriptor.maHandler;
+            String[] aHandlerActions = aHandler.getActions (this);
+            aActions.addAll(Arrays.asList(aHandlerActions));
+        }
+    }
+
+    @Override
+    public void performAction( int nIndex )
+    {
+        if( nIndex >= 0 )
+        {
+            for(int i = 0; i < maHandlers.size(); i++)
+            {
+                // check if this handler has the child, and if not
+                // search with next handler
+                HandlerDescriptor aDescriptor = getHandlerDescriptor (i);
+                NodeHandler aHandler = aDescriptor.maHandler;
+                int nCount = aHandler.getActions(this).length;
+                if( nCount > nIndex )
+                {
+                    aHandler.performAction(this, nIndex );
+                    return;
+                }
+                else
+                    nIndex -= nCount;
+            }
+        }
+    }
+
+    /** Try to add the specified accessible object as new accessible child of the
+        AccessibleTreeHandler.
+        Note that child is used in another context than
+        it is used in the other methods of this class.
+    */
+    public AccessibleTreeNode addAccessibleChild (XAccessible xChild)
+    {
+        for(int i = 0; i < maHandlers.size(); i++)
+        {
+            HandlerDescriptor aDescriptor = getHandlerDescriptor (i);
+            if (aDescriptor.maHandler instanceof AccessibleTreeHandler)
+            {
+                AccessibleTreeHandler aHandler = (AccessibleTreeHandler)aDescriptor.maHandler;
+                AccessibleTreeNode aNode = aHandler.addAccessibleChild (this, xChild);
+                aDescriptor.mnChildCount = aHandler.getChildCount ();
+                return aNode;
+            }
+        }
+        return null;
+    }
+
+    public java.util.List<Integer> updateChildren (java.lang.Class class1, java.lang.Class<AccessibleExtendedComponentHandler> class2)
+    {
+        ArrayList<Integer> aChildIndices = new ArrayList<Integer>();
+        int nOffset = 0;
+        for(int i=0; i < maHandlers.size(); i++)
+        {
+            HandlerDescriptor aDescriptor = getHandlerDescriptor (i);
+            if ((class1.isInstance(aDescriptor.maHandler))
+                || (class2 !=null && class2.isInstance(aDescriptor.maHandler)))
+            {
+                aDescriptor.maHandler.update(this);
+                // Get updated number of children.
+                int nChildCount = aDescriptor.maHandler.getChildCount ();
+                aDescriptor.mnChildCount = nChildCount;
+                // Fill in the indices of the updated children.
+                for (int j=0; j<nChildCount; j++)
+                    aChildIndices.add(j+nOffset);
+            }
+            nOffset += aDescriptor.mnChildCount;
+        }
+        return aChildIndices;
+    }
+}