diff options
Diffstat (limited to 'desktop/source/registration/com/sun/star/servicetag/BrowserSupport.java')
| -rwxr-xr-x | desktop/source/registration/com/sun/star/servicetag/BrowserSupport.java | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/desktop/source/registration/com/sun/star/servicetag/BrowserSupport.java b/desktop/source/registration/com/sun/star/servicetag/BrowserSupport.java new file mode 100755 index 000000000000..87d83d5339ac --- /dev/null +++ b/desktop/source/registration/com/sun/star/servicetag/BrowserSupport.java @@ -0,0 +1,201 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +package com.sun.star.servicetag; + +import java.lang.reflect.Field; +import java.lang.reflect.Method; +import java.lang.reflect.InvocationTargetException; +import java.io.IOException; +import java.net.URI; + +/** + * BrowserSupport class. + * + * The implementation of the com.sun.servicetag API needs to be + * compiled with JDK 5 as well since the consumer of this API + * may require to support JDK 5 (e.g. NetBeans). + * + * The Desktop.browse() method can be backported in this class + * if needed. The current implementation only supports JDK 6. + */ +class BrowserSupport { + private static boolean isBrowseSupported = false; + private static Method browseMethod = null; + private static Object desktop = null; + private static volatile Boolean result = false; + + + private static void initX() { + if (desktop != null) { + return; + } + boolean supported = false; + Method browseM = null; + Object desktopObj = null; + try { + // Determine if java.awt.Desktop is supported + Class desktopCls = Class.forName("java.awt.Desktop", true, null); + Method getDesktopM = desktopCls.getMethod("getDesktop"); + browseM = desktopCls.getMethod("browse", URI.class); + + Class actionCls = Class.forName("java.awt.Desktop$Action", true, null); + final Method isDesktopSupportedMethod = desktopCls.getMethod("isDesktopSupported"); + Method isSupportedMethod = desktopCls.getMethod("isSupported", actionCls); + Field browseField = actionCls.getField("BROWSE"); + // isDesktopSupported calls getDefaultToolkit which can block + // infinitely, see 6636099 for details, to workaround we call + // in a thread and time it out, noting that the issue is specific + // to X11, it does not hurt for Windows. + Thread xthread = new Thread() { + public void run() { + try { + // support only if Desktop.isDesktopSupported() and + // Desktop.isSupported(Desktop.Action.BROWSE) return true. + result = (Boolean) isDesktopSupportedMethod.invoke(null); + } catch (IllegalAccessException e) { + // should never reach here + InternalError x = + new InternalError("Desktop.getDesktop() method not found"); + x.initCause(e); + } catch (InvocationTargetException e) { + // browser not supported + if (Util.isVerbose()) { + e.printStackTrace(); + } + } + } + }; + // set it to daemon, so that the vm will exit. + xthread.setDaemon(true); + xthread.start(); + try { + xthread.join(5 * 1000); + } catch (InterruptedException ie) { + // ignore the exception + } + if (result.booleanValue()) { + desktopObj = getDesktopM.invoke(null); + result = (Boolean) isSupportedMethod.invoke(desktopObj, browseField.get(null)); + supported = result.booleanValue(); + } + } catch (ClassNotFoundException e) { + // browser not supported + if (Util.isVerbose()) { + e.printStackTrace(); + } + } catch (NoSuchMethodException e) { + // browser not supported + if (Util.isVerbose()) { + e.printStackTrace(); + } + } catch (NoSuchFieldException e) { + // browser not supported + if (Util.isVerbose()) { + e.printStackTrace(); + } + } catch (IllegalAccessException e) { + // should never reach here + InternalError x = + new InternalError("Desktop.getDesktop() method not found"); + x.initCause(e); + throw x; + } catch (InvocationTargetException e) { + // browser not supported + if (Util.isVerbose()) { + e.printStackTrace(); + } + } + isBrowseSupported = supported; + browseMethod = browseM; + desktop = desktopObj; + } + + static boolean isSupported() { + initX(); + return isBrowseSupported; + } + + /** + * Launches the default browser to display a {@code URI}. + * If the default browser is not able to handle the specified + * {@code URI}, the application registered for handling + * {@code URIs} of the specified type is invoked. The application + * is determined from the protocol and path of the {@code URI}, as + * defined by the {@code URI} class. + * <p> + * This method calls the Desktop.getDesktop().browse() method. + * <p> + * @param uri the URI to be displayed in the user default browser + * + * @throws NullPointerException if {@code uri} is {@code null} + * @throws UnsupportedOperationException if the current platform + * does not support the {@link Desktop.Action#BROWSE} action + * @throws IOException if the user default browser is not found, + * or it fails to be launched, or the default handler application + * failed to be launched + * @throws IllegalArgumentException if the necessary permissions + * are not available and the URI can not be converted to a {@code URL} + */ + static void browse(URI uri) throws IOException { + if (uri == null) { + throw new NullPointerException("null uri"); + } + if (!isSupported()) { + throw new UnsupportedOperationException("Browse operation is not supported"); + } + + // Call Desktop.browse() method + try { + if (Util.isVerbose()) { + System.out.println("desktop: " + desktop + ":browsing..." + uri); + } + browseMethod.invoke(desktop, uri); + } catch (IllegalAccessException e) { + // should never reach here + InternalError x = + new InternalError("Desktop.getDesktop() method not found"); + x.initCause(e); + throw x; + } catch (InvocationTargetException e) { + Throwable x = e.getCause(); + if (x != null) { + if (x instanceof UnsupportedOperationException) { + throw (UnsupportedOperationException) x; + } else if (x instanceof IllegalArgumentException) { + throw (IllegalArgumentException) x; + } else if (x instanceof IOException) { + throw (IOException) x; + } else if (x instanceof SecurityException) { + throw (SecurityException) x; + } else { + // ignore + } + } + } + } +} |