author | ohair |
Tue, 28 Dec 2010 15:53:50 -0800 | |
changeset 7668 | d4a77089c587 |
parent 5506 | 202f599c92aa |
child 17679 | a81555868357 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.awt.X11; |
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public abstract class XErrorHandler { |
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/* |
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* Called under AWT lock |
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*/ |
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public abstract int handleError(long display, XErrorEvent err); |
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/* |
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* Forwards all the errors to saved error handler (which was |
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* set before XToolkit had been initialized). |
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*/ |
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public static class XBaseErrorHandler extends XErrorHandler { |
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@Override |
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public int handleError(long display, XErrorEvent err) { |
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return XToolkit.SAVED_ERROR_HANDLER(display, err); |
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} |
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} |
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/* |
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* Instead of validating window id, we simply call XGetWindowProperty, |
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* but temporary install this function as the error handler to ignore |
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* BadWindow error. |
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*/ |
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public static class IgnoreBadWindowHandler extends XBaseErrorHandler { |
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@Override |
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public int handleError(long display, XErrorEvent err) { |
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if (err.get_error_code() == XConstants.BadWindow) { |
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return 0; |
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} |
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return super.handleError(display, err); |
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} |
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// Shared instance |
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private static IgnoreBadWindowHandler theInstance = new IgnoreBadWindowHandler(); |
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public static IgnoreBadWindowHandler getInstance() { |
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return theInstance; |
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} |
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} |
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public static class VerifyChangePropertyHandler extends XBaseErrorHandler { |
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@Override |
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public int handleError(long display, XErrorEvent err) { |
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if (err.get_request_code() == XProtocolConstants.X_ChangeProperty) { |
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return 0; |
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} |
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return super.handleError(display, err); |
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} |
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// Shared instance |
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private static VerifyChangePropertyHandler theInstance = new VerifyChangePropertyHandler(); |
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public static VerifyChangePropertyHandler getInstance() { |
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return theInstance; |
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} |
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} |
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} |