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Diffstat (limited to 'odk/examples/DevelopersGuide/Accessibility/RegistrationThread.java')
| -rw-r--r-- | odk/examples/DevelopersGuide/Accessibility/RegistrationThread.java | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/odk/examples/DevelopersGuide/Accessibility/RegistrationThread.java b/odk/examples/DevelopersGuide/Accessibility/RegistrationThread.java deleted file mode 100644 index b6a64e439f38..000000000000 --- a/odk/examples/DevelopersGuide/Accessibility/RegistrationThread.java +++ /dev/null @@ -1,147 +0,0 @@ -/************************************************************************* - * - * The Contents of this file are made available subject to the terms of - * the BSD license. - * - * Copyright 2000, 2010 Oracle and/or its affiliates. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of Sun Microsystems, Inc. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR - * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE - * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *************************************************************************/ - -import com.sun.star.uno.UnoRuntime; -import com.sun.star.accessibility.*; - -/** This class is used as a thread and registers or unregsiters a listener - given the constructor at all nodes of a tree of accessibility objects. -*/ -public class RegistrationThread - implements Runnable -{ - /** Start a new thread that adds or removes the given listener at all - accessible objects in the sub-tree rooted in the given accessible - object. - @param aListener - The listener that is added or removed. - @param xRoot - The root of the sub-tree of accessibility objects. - @param bRegister - This flag decides whether to add or remove the listener. - */ - public RegistrationThread ( - EventListenerProxy aListener, - XAccessibleContext xRoot, - boolean bRegister, - boolean bShowMessages) - { - maListener = aListener; - mxRoot = xRoot; - mbRegister = bRegister; - mbShowMessages = bShowMessages; - - if (mxRoot != null) - { - if (mbShowMessages) - MessageArea.println ("starting to register at " + mxRoot.getAccessibleName()); - new Thread (this, "RegistrationThread").start(); - } - } - - - - public void run () - { - System.out.println ("starting registration"); - long nNodeCount = traverseTree (mxRoot); - System.out.println ("ending registration"); - if (mbShowMessages) - { - if ( ! mbRegister) - MessageArea.print ("un"); - MessageArea.println ("registered at " + nNodeCount - + " objects in accessibility tree of " + mxRoot.getAccessibleName()); - } - } - - - - - /** Register this object as listener for accessibility events at all nodes - of the given tree. - @param xRoot - The root node of the tree at which to register. - */ - public long traverseTree (XAccessibleContext xRoot) - { - long nNodeCount = 0; - if (xRoot != null) - { - // Register the root node. - XAccessibleEventBroadcaster xBroadcaster = - (XAccessibleEventBroadcaster) UnoRuntime.queryInterface ( - XAccessibleEventBroadcaster.class, - xRoot); - if (xBroadcaster != null) - { - if (mbRegister) - xBroadcaster.addAccessibleEventListener (maListener); - else - xBroadcaster.removeAccessibleEventListener (maListener); - nNodeCount += 1; - } - - // Call this method recursively to register all sub-trees. - try - { - int nChildCount = xRoot.getAccessibleChildCount(); - for (int i=0; i<nChildCount; i++) - { - XAccessible xChild = xRoot.getAccessibleChild (i); - if (xChild != null) - nNodeCount += traverseTree (xChild.getAccessibleContext()); - } - } - catch (com.sun.star.lang.IndexOutOfBoundsException aException) - { - // The set of children has changed since our last call to - // getAccesibleChildCount(). Don't try any further on this - // sub-tree. - } - catch (com.sun.star.lang.DisposedException aException) - { - // The child has been destroyed since our last call to - // getAccesibleChildCount(). That is OK. Don't try any - // further on this sub-tree. - } - } - return nNodeCount; - } - - private EventListenerProxy maListener; - private XAccessibleContext mxRoot; - private boolean mbRegister; - private boolean mbShowMessages; -} |