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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:51:28 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:51:28 +0000
commit940b4d1848e8c70ab7642901a68594e8016caffc (patch)
treeeb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /toolkit/test/accessibility/AccessibilityTree.java
parentInitial commit. (diff)
downloadlibreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.tar.xz
libreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.zip
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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-rw-r--r--toolkit/test/accessibility/AccessibilityTree.java379
1 files changed, 379 insertions, 0 deletions
diff --git a/toolkit/test/accessibility/AccessibilityTree.java b/toolkit/test/accessibility/AccessibilityTree.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.awt.Cursor;
+import java.awt.event.ActionEvent;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.util.ArrayList;
+
+import javax.swing.AbstractAction;
+import javax.swing.JPopupMenu;
+import javax.swing.JTree;
+import javax.swing.event.TreeExpansionEvent;
+import javax.swing.event.TreeExpansionListener;
+import javax.swing.event.TreeWillExpandListener;
+import javax.swing.tree.TreePath;
+
+import com.sun.star.accessibility.XAccessibleContext;
+
+
+
+/** This is the tree component that is responsible for displaying the
+ contents of the tree model on the screen.
+*/
+public class AccessibilityTree
+ implements TreeExpansionListener, TreeWillExpandListener
+{
+ /** Create a new accessibility tree. Use the specified message display
+ for displaying messages and the specified canvas to draw the
+ graphical representations of accessible objects on.
+ */
+ public AccessibilityTree ()
+ {
+ maTree = new JTree ();
+
+ AccessibilityTreeModel aModel =
+ new AccessibilityTreeModel (
+ new StringNode ("Please press Update button", null));
+ maTree.setModel (aModel);
+
+ maTree.addMouseListener (new MouseListener (this));
+
+ // Listen to expansions and collapses to change the mouse cursor.
+ mnExpandLevel = 0;
+ maTree.addTreeWillExpandListener (this);
+ maTree.addTreeExpansionListener (this);
+ }
+
+ public JTree getComponent ()
+ {
+ return maTree;
+ }
+
+ // Change cursor during expansions to show the user that this is a
+ // lengthy operation.
+ public void treeWillExpand (TreeExpansionEvent e)
+ {
+ if (mnExpandLevel == 0)
+ {
+ maTree.setCursor (new Cursor (Cursor.WAIT_CURSOR));
+ }
+ mnExpandLevel += 1;
+ }
+ public void treeWillCollapse (TreeExpansionEvent e)
+ {
+ if (mnExpandLevel == 0)
+ {
+ maTree.setCursor (new Cursor (Cursor.WAIT_CURSOR));
+ }
+ mnExpandLevel += 1;
+ }
+ public void treeExpanded (TreeExpansionEvent e)
+ {
+ mnExpandLevel -= 1;
+ if (mnExpandLevel == 0)
+ {
+ maTree.setCursor (new Cursor (Cursor.DEFAULT_CURSOR));
+ }
+ }
+ public void treeCollapsed (TreeExpansionEvent e)
+ {
+ mnExpandLevel -= 1;
+ if (mnExpandLevel == 0)
+ {
+ maTree.setCursor (new Cursor (Cursor.DEFAULT_CURSOR));
+ }
+ }
+
+
+
+ public void SetCanvas (Canvas aCanvas)
+ {
+ ((AccessibilityTreeModel)maTree.getModel()).setCanvas(aCanvas);
+ }
+
+ /** Expand the nodes in the subtree rooted in aNode according to the
+ specified expander. The tree is locked during the expansion.
+ */
+ private void expandTree (AccessibleTreeNode aNode, Expander aExpander)
+ {
+ if (mnExpandLevel == 0)
+ {
+ maTree.setEnabled (false);
+ }
+ mnExpandLevel += 1;
+
+ ((AccessibilityTreeModel)maTree.getModel()).lock ();
+
+ try
+ {
+ expandTree (new TreePath (aNode.createPath()), aExpander);
+ }
+ catch (Exception e)
+ {
+ // Ignore
+ }
+
+ mnExpandLevel -= 1;
+ if (mnExpandLevel == 0)
+ {
+ maTree.setEnabled (true);
+ ((AccessibilityTreeModel)maTree.getModel()).unlock (aNode);
+ }
+ }
+
+ private TreePath expandTree( TreePath aPath, Expander aExpander )
+ {
+ // return first expanded object
+ TreePath aFirst = null;
+
+ try
+ {
+ // get 'our' object
+ Object aObj = aPath.getLastPathComponent();
+
+ // expand this object, if the Expander tells us so
+ if( aExpander.expand( aObj ) )
+ {
+ maTree.expandPath (aPath);
+ aFirst = aPath;
+ }
+
+ // visit all children
+ if (aObj instanceof AccessibleTreeNode)
+ {
+ AccessibleTreeNode aNode = (AccessibleTreeNode)aObj;
+ int nLength = aNode.getChildCount();
+ for( int i = 0; i < nLength; i++ )
+ {
+ TreePath aRet = expandTree(
+ aPath.pathByAddingChild( aNode.getChild( i ) ),
+ aExpander );
+ if( aFirst == null )
+ aFirst = aRet;
+ }
+ }
+ }
+ catch (Exception e)
+ {
+ System.out.println ("caught exception while expanding tree path "
+ + aPath + ": " + e);
+ e.printStackTrace ();
+ }
+
+ return aFirst;
+ }
+
+
+ /** Expand all nodes and their subtrees that represent shapes. Call
+ * this method from the outside. */
+ public void expandShapes ()
+ {
+ expandShapes ((AccessibleTreeNode)maTree.getModel().getRoot());
+ }
+ private void expandShapes (AccessibleTreeNode aNode)
+ {
+ expandTree (aNode, new ShapeExpander());
+ }
+
+ /** Expand all nodes */
+ public void expandAll ()
+ {
+ expandAll ((AccessibleTreeNode)maTree.getModel().getRoot());
+ }
+ private void expandAll (AccessibleTreeNode aNode)
+ {
+ expandTree (aNode, new AllExpander());
+ }
+
+
+
+ /*
+ public Dimension getPreferredSize ()
+ {
+ Dimension aPreferredSize = super.getPreferredSize();
+ Dimension aMinimumSize = super.getMinimumSize();
+ if (aPreferredSize.width < aMinimumSize.width)
+ aPreferredSize.width = aMinimumSize.width;
+ return aPreferredSize;
+ }
+ */
+
+ private class MouseListener extends MouseAdapter
+ {
+ public MouseListener (AccessibilityTree aTree)
+ {
+ maTree=aTree;
+ }
+ @Override
+ public void mousePressed(MouseEvent e) { popupTrigger(e); }
+ @Override
+ public void mouseClicked(MouseEvent e) { popupTrigger(e); }
+ @Override
+ public void mouseEntered(MouseEvent e) { popupTrigger(e); }
+ @Override
+ public void mouseExited(MouseEvent e) { popupTrigger(e); }
+ @Override
+ public void mouseReleased(MouseEvent e) { popupTrigger(e); }
+
+ private boolean popupTrigger( MouseEvent e )
+ {
+ boolean bIsPopup = e.isPopupTrigger();
+ if( !bIsPopup )
+ return false;
+
+ int selRow = maTree.getComponent().getRowForLocation(e.getX(), e.getY());
+ if (selRow == -1)
+ return bIsPopup;
+
+ TreePath aPath = maTree.getComponent().getPathForLocation(e.getX(), e.getY());
+
+ // check for actions
+ Object aObject = aPath.getLastPathComponent();
+ JPopupMenu aMenu = new JPopupMenu();
+ if( aObject instanceof AccTreeNode )
+ {
+ AccTreeNode aNode = (AccTreeNode)aObject;
+
+ ArrayList<String> aActions = new ArrayList<String>();
+ aMenu.add (new AccessibilityTree.ShapeExpandAction(maTree, aNode));
+ aMenu.add (new AccessibilityTree.SubtreeExpandAction(maTree, aNode));
+
+ aNode.getActions(aActions);
+ for( int i = 0; i < aActions.size(); i++ )
+ {
+ aMenu.add( new NodeAction(
+ aActions.get(i),
+ aNode, i ) );
+ }
+ }
+ else if (aObject instanceof AccessibleTreeNode)
+ {
+ AccessibleTreeNode aNode = (AccessibleTreeNode)aObject;
+ String[] aActionNames = aNode.getActions();
+ int nCount=aActionNames.length;
+ if (nCount > 0)
+ {
+ for (int i=0; i<nCount; i++)
+ aMenu.add( new NodeAction(
+ aActionNames[i],
+ aNode,
+ i));
+ }
+ else
+ aMenu = null;
+ }
+ if (aMenu != null)
+ aMenu.show (maTree.getComponent(),
+ e.getX(), e.getY());
+
+ return bIsPopup;
+ }
+
+ private final AccessibilityTree maTree;
+ }
+
+ private class NodeAction extends AbstractAction
+ {
+ private final int mnIndex;
+ private final AccessibleTreeNode maNode;
+
+ private NodeAction( String aName, AccessibleTreeNode aNode, int nIndex )
+ {
+ super( aName );
+ maNode = aNode;
+ mnIndex = nIndex;
+ }
+
+ public void actionPerformed(ActionEvent e)
+ {
+ maNode.performAction(mnIndex);
+ }
+ }
+
+ // This action expands all shapes in the subtree rooted in the specified node.
+ private class ShapeExpandAction extends AbstractAction
+ {
+ private final AccessibilityTree maTree;
+ private final AccTreeNode maNode;
+ public ShapeExpandAction (AccessibilityTree aTree, AccTreeNode aNode)
+ {
+ super ("Expand Shapes");
+ maTree = aTree;
+ maNode = aNode;
+ }
+ public void actionPerformed (ActionEvent e)
+ {
+ maTree.expandShapes (maNode);
+ }
+ }
+
+ // This action expands all nodes in the subtree rooted in the specified node.
+ private class SubtreeExpandAction extends AbstractAction
+ {
+ private final AccessibilityTree maTree;
+ private final AccTreeNode maNode;
+ public SubtreeExpandAction (AccessibilityTree aTree, AccTreeNode aNode)
+ {
+ super ("Expand Subtree");
+ maTree = aTree;
+ maNode = aNode;
+ }
+ public void actionPerformed (ActionEvent e)
+ {
+ maTree.expandAll (maNode);
+ }
+ }
+
+ /** Predicate class to determine whether a node should be expanded
+ * For use with expandTree method */
+ private abstract class Expander
+ {
+ abstract public boolean expand (Object aObject);
+ }
+
+ /** expand all nodes */
+ private class AllExpander extends Expander
+ {
+ @Override
+ public boolean expand(Object aObject) { return true; }
+ }
+
+ /** expand all nodes with accessibility roles > 100 */
+ private class ShapeExpander extends Expander
+ {
+ @Override
+ public boolean expand (Object aObject)
+ {
+ if (aObject instanceof AccTreeNode)
+ {
+ AccTreeNode aNode = (AccTreeNode)aObject;
+ XAccessibleContext xContext = aNode.getContext();
+ if (xContext != null && xContext.getAccessibleRole() >= 100)
+ return true;
+ }
+ return false;
+ }
+ }
+
+
+
+ private final JTree maTree;
+ private int mnExpandLevel;
+}