| /* |
| * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package sun.awt.X11; |
| |
| public abstract class XErrorHandler { |
| |
| /* |
| * Called under AWT lock |
| */ |
| public abstract int handleError(long display, XErrorEvent err); |
| |
| /* |
| * Forwards all the errors to saved error handler (which was |
| * set before XToolkit had been initialized). |
| */ |
| public static class XBaseErrorHandler extends XErrorHandler { |
| @Override |
| public int handleError(long display, XErrorEvent err) { |
| return XErrorHandlerUtil.SAVED_XERROR_HANDLER(display, err); |
| } |
| } |
| |
| /* |
| * Instead of validating window id, we simply call XGetWindowProperty, |
| * but temporary install this function as the error handler to ignore |
| * BadWindow error. |
| */ |
| public static class IgnoreBadWindowHandler extends XBaseErrorHandler { |
| @Override |
| public int handleError(long display, XErrorEvent err) { |
| if (err.get_error_code() == XConstants.BadWindow) { |
| return 0; |
| } |
| return super.handleError(display, err); |
| } |
| // Shared instance |
| private static IgnoreBadWindowHandler theInstance = new IgnoreBadWindowHandler(); |
| public static IgnoreBadWindowHandler getInstance() { |
| return theInstance; |
| } |
| } |
| |
| public static class VerifyChangePropertyHandler extends XBaseErrorHandler { |
| @Override |
| public int handleError(long display, XErrorEvent err) { |
| if (err.get_request_code() == XProtocolConstants.X_ChangeProperty) { |
| return 0; |
| } |
| return super.handleError(display, err); |
| } |
| // Shared instance |
| private static VerifyChangePropertyHandler theInstance = new VerifyChangePropertyHandler(); |
| public static VerifyChangePropertyHandler getInstance() { |
| return theInstance; |
| } |
| } |
| } |