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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
commit | 940b4d1848e8c70ab7642901a68594e8016caffc (patch) | |
tree | eb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /toolkit/test/accessibility/AccessibleTreeHandler.java | |
parent | Initial commit. (diff) | |
download | libreoffice-upstream/1%7.0.4.tar.xz libreoffice-upstream/1%7.0.4.zip |
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'toolkit/test/accessibility/AccessibleTreeHandler.java')
-rw-r--r-- | toolkit/test/accessibility/AccessibleTreeHandler.java | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/toolkit/test/accessibility/AccessibleTreeHandler.java b/toolkit/test/accessibility/AccessibleTreeHandler.java new file mode 100644 index 000000000..e022dbae8 --- /dev/null +++ b/toolkit/test/accessibility/AccessibleTreeHandler.java @@ -0,0 +1,130 @@ +/* + * 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 com.sun.star.accessibility.XAccessible; +import com.sun.star.accessibility.XAccessibleContext; +import com.sun.star.lang.IndexOutOfBoundsException; + + +/** + * Map the tree of accessibility objects into their + * AccessibilityTreeModel counterparts. + */ +class AccessibleTreeHandler + extends NodeHandler +{ + private XAccessibleContext mxContext; + + @Override + public NodeHandler createHandler (XAccessibleContext xContext) + { + if (xContext != null) + return new AccessibleTreeHandler (xContext); + else + return null; + } + + public AccessibleTreeHandler () + { + super(); + mxContext = null; + } + + private AccessibleTreeHandler (XAccessibleContext xContext) + { + super(); + mxContext = xContext; + if (mxContext != null) + // Add one to the number of children to include the string node + // that tells you how many children there are. + synchronized (maChildList) + { + maChildList.setSize (1 + mxContext.getAccessibleChildCount()); + } + } + + @Override + public AccessibleTreeNode createChild (AccessibleTreeNode aParent, int nIndex) + { + AccessibleTreeNode aChild = null; + if (mxContext != null) + { + if (nIndex == 0) + aChild = new StringNode ("Child count: " + mxContext.getAccessibleChildCount(), + aParent); + else + { + // Lower index to skip the string node. + nIndex -= 1; + try + { + XAccessible xChild = mxContext.getAccessibleChild (nIndex); + aChild = NodeFactory.Instance().createDefaultNode ( + xChild, aParent); + } + catch( IndexOutOfBoundsException e ) + { + aChild = new StringNode ("ERROR: no child with index " + nIndex, aParent); + } + } + } + else + aChild = new StringNode ("XAccessibleContext interface not supported", aParent); + return aChild; + } + + /** Try to add the specified accessible child into the lists of + children. The insertion position is determined from the + getIndexInParent method of the child. + */ + public AccessibleTreeNode addAccessibleChild (AccessibleTreeNode aParent, XAccessible xChild) + { + AccessibleTreeNode aChild = null; + + if (xChild != null) + { + XAccessibleContext xContext = xChild.getAccessibleContext(); + if (xContext != null) + { + int nIndex = xContext.getAccessibleIndexInParent() + 1; + synchronized (maChildList) + { + if ((nIndex >= 0) || (nIndex <= maChildList.size())) + { + aChild = NodeFactory.Instance().createDefaultNode (xChild, aParent); + maChildList.add (nIndex, aChild); + } + } + } + } + return aChild; + } + + + /** Update only the child count node. Trust on other ways to update the + accessible children. + */ + @Override + public void update (AccessibleTreeNode aNode) + { + synchronized (maChildList) + { + maChildList.set (0, null); + } + } +} |