-/*\r
- * Jalview - A Sequence Alignment Editor and Viewer\r
- * Copyright (C) 2007 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle\r
- *\r
- * This program is free software; you can redistribute it and/or\r
- * modify it under the terms of the GNU General Public License\r
- * as published by the Free Software Foundation; either version 2\r
- * of the License, or (at your option) any later version.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License\r
- * along with this program; if not, write to the Free Software\r
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA\r
- */\r
-package jalview.util;\r
-\r
-import java.io.*;\r
-import java.lang.reflect.*;\r
-\r
-/**\r
- * BrowserLauncher is a class that provides one static method, openURL, which opens the default\r
- * web browser for the current user of the system to the given URL. It may support other\r
- * protocols depending on the system -- mailto, ftp, etc. -- but that has not been rigorously\r
- * tested and is not guaranteed to work.\r
- * <p>\r
- * Yes, this is platform-specific code, and yes, it may rely on classes on certain platforms\r
- * that are not part of the standard JDK. What we're trying to do, though, is to take something\r
- * that's frequently desirable but inherently platform-specific -- opening a default browser --\r
- * and allow programmers (you, for example) to do so without worrying about dropping into native\r
- * code or doing anything else similarly evil.\r
- * <p>\r
- * Anyway, this code is completely in Java and will run on all JDK 1.1-compliant systems without\r
- * modification or a need for additional libraries. All classes that are required on certain\r
- * platforms to allow this to run are dynamically loaded at runtime via reflection and, if not\r
- * found, will not cause this to do anything other than returning an error when opening the\r
- * browser.\r
- * <p>\r
- * There are certain system requirements for this class, as it's running through Runtime.exec(),\r
- * which is Java's way of making a native system call. Currently, this requires that a Macintosh\r
- * have a Finder which supports the GURL event, which is true for Mac OS 8.0 and 8.1 systems that\r
- * have the Internet Scripting AppleScript dictionary installed in the Scripting Additions folder\r
- * in the Extensions folder (which is installed by default as far as I know under Mac OS 8.0 and\r
- * 8.1), and for all Mac OS 8.5 and later systems. On Windows, it only runs under Win32 systems\r
- * (Windows 95, 98, and NT 4.0, as well as later versions of all). On other systems, this drops\r
- * back from the inherently platform-sensitive concept of a default browser and simply attempts\r
- * to launch Netscape via a shell command.\r
- * <p>\r
- * This code is Copyright 1999-2001 by Eric Albert (ejalbert\@cs.stanford.edu) and may be\r
- * redistributed or modified in any form without restrictions as long as the portion of this\r
- * comment from this paragraph through the end of the comment is not removed. The author\r
- * requests that he be notified of any application, applet, or other binary that makes use of\r
- * this code, but that's more out of curiosity than anything and is not required. This software\r
- * includes no warranty. The author is not repsonsible for any loss of data or functionality\r
- * or any adverse or unexpected effects of using this software.\r
- * <p>\r
- * Credits:\r
- * <br>Steven Spencer, JavaWorld magazine (<a href="http://www.javaworld.com/javaworld/javatips/jw-javatip66.html">Java Tip 66</a>)\r
- * <br>Thanks also to Ron B. Yeh, Eric Shapiro, Ben Engber, Paul Teitlebaum, Andrea Cantatore,\r
- * Larry Barowski, Trevor Bedzek, Frank Miedrich, and Ron Rabakukk\r
- *\r
- * @author Eric Albert (<a href="mailto:ejalbert@cs.stanford.edu">ejalbert@cs.stanford.edu</a>)\r
- * @version 1.4b1 (Released June 20, 2001)\r
- */\r
-public class BrowserLauncher\r
-{\r
- /**\r
- * The Java virtual machine that we are running on. Actually, in most cases we only care\r
- * about the operating system, but some operating systems require us to switch on the VM. */\r
- private static int jvm;\r
-\r
- /** The browser for the system */\r
- private static Object browser;\r
-\r
- /**\r
- * Caches whether any classes, methods, and fields that are not part of the JDK and need to\r
- * be dynamically loaded at runtime loaded successfully.\r
- * <p>\r
- * Note that if this is <code>false</code>, <code>openURL()</code> will always return an\r
- * IOException.\r
- */\r
- private static boolean loadedWithoutErrors;\r
-\r
- /** The com.apple.mrj.MRJFileUtils class */\r
- private static Class mrjFileUtilsClass;\r
-\r
- /** The com.apple.mrj.MRJOSType class */\r
- private static Class mrjOSTypeClass;\r
-\r
- /** The com.apple.MacOS.AEDesc class */\r
- private static Class aeDescClass;\r
-\r
- /** The <init>(int) method of com.apple.MacOS.AETarget */\r
- private static Constructor aeTargetConstructor;\r
-\r
- /** The <init>(int, int, int) method of com.apple.MacOS.AppleEvent */\r
- private static Constructor appleEventConstructor;\r
-\r
- /** The <init>(String) method of com.apple.MacOS.AEDesc */\r
- private static Constructor aeDescConstructor;\r
-\r
- /** The findFolder method of com.apple.mrj.MRJFileUtils */\r
- private static Method findFolder;\r
-\r
- /** The getFileCreator method of com.apple.mrj.MRJFileUtils */\r
- private static Method getFileCreator;\r
-\r
- /** The getFileType method of com.apple.mrj.MRJFileUtils */\r
- private static Method getFileType;\r
-\r
- /** The openURL method of com.apple.mrj.MRJFileUtils */\r
- private static Method openURL;\r
-\r
- /** The makeOSType method of com.apple.MacOS.OSUtils */\r
- private static Method makeOSType;\r
-\r
- /** The putParameter method of com.apple.MacOS.AppleEvent */\r
- private static Method putParameter;\r
-\r
- /** The sendNoReply method of com.apple.MacOS.AppleEvent */\r
- private static Method sendNoReply;\r
-\r
- /** Actually an MRJOSType pointing to the System Folder on a Macintosh */\r
- private static Object kSystemFolderType;\r
-\r
- /** The keyDirectObject AppleEvent parameter type */\r
- private static Integer keyDirectObject;\r
-\r
- /** The kAutoGenerateReturnID AppleEvent code */\r
- private static Integer kAutoGenerateReturnID;\r
-\r
- /** The kAnyTransactionID AppleEvent code */\r
- private static Integer kAnyTransactionID;\r
-\r
- /** The linkage object required for JDirect 3 on Mac OS X. */\r
- private static Object linkage;\r
-\r
- /** The framework to reference on Mac OS X */\r
- private static final String JDirect_MacOSX = "/System/Library/Frameworks/Carbon.framework/Frameworks/HIToolbox.framework/HIToolbox";\r
-\r
- /** JVM constant for MRJ 2.0 */\r
- private static final int MRJ_2_0 = 0;\r
-\r
- /** JVM constant for MRJ 2.1 or later */\r
- private static final int MRJ_2_1 = 1;\r
-\r
- /** JVM constant for Java on Mac OS X 10.0 (MRJ 3.0) */\r
- private static final int MRJ_3_0 = 3;\r
-\r
- /** JVM constant for MRJ 3.1 */\r
- private static final int MRJ_3_1 = 4;\r
-\r
- /** JVM constant for any Windows NT JVM */\r
- private static final int WINDOWS_NT = 5;\r
-\r
- /** JVM constant for any Windows 9x JVM */\r
- private static final int WINDOWS_9x = 6;\r
-\r
- /** JVM constant for any other platform */\r
- private static final int OTHER = -1;\r
-\r
- /**\r
- * The file type of the Finder on a Macintosh. Hardcoding "Finder" would keep non-U.S. English\r
- * systems from working properly.\r
- */\r
- private static final String FINDER_TYPE = "FNDR";\r
-\r
- /**\r
- * The creator code of the Finder on a Macintosh, which is needed to send AppleEvents to the\r
- * application.\r
- */\r
- private static final String FINDER_CREATOR = "MACS";\r
-\r
- /** The name for the AppleEvent type corresponding to a GetURL event. */\r
- private static final String GURL_EVENT = "GURL";\r
-\r
- /**\r
- * The first parameter that needs to be passed into Runtime.exec() to open the default web\r
- * browser on Windows.\r
- */\r
- private static final String FIRST_WINDOWS_PARAMETER = "/c";\r
-\r
- /** The second parameter for Runtime.exec() on Windows. */\r
- private static final String SECOND_WINDOWS_PARAMETER = "start";\r
-\r
- /**\r
- * The third parameter for Runtime.exec() on Windows. This is a "title"\r
- * parameter that the command line expects. Setting this parameter allows\r
- * URLs containing spaces to work.\r
- */\r
- private static final String THIRD_WINDOWS_PARAMETER = "\"\"";\r
-\r
- /**\r
- * The shell parameters for Netscape that opens a given URL in an already-open copy of Netscape\r
- * on many command-line systems.\r
- */\r
- private static final String NETSCAPE_REMOTE_PARAMETER = "-remote";\r
- private static final String NETSCAPE_OPEN_PARAMETER_START = "openURL(";\r
- private static final String NETSCAPE_OPEN_NEW_WINDOW = ", new-window";\r
- private static final String NETSCAPE_OPEN_PARAMETER_END = ")";\r
-\r
- /**\r
- * The message from any exception thrown throughout the initialization process.\r
- */\r
- private static String errorMessage;\r
-\r
- /**\r
- * An initialization block that determines the operating system and loads the necessary\r
- * runtime data.\r
- */\r
- static\r
- {\r
- loadedWithoutErrors = true;\r
-\r
- String osName = System.getProperty("os.name");\r
-\r
- if (osName.startsWith("Mac OS"))\r
- {\r
- String mrjVersion = System.getProperty("mrj.version");\r
- String majorMRJVersion = mrjVersion.substring(0, 3);\r
-\r
- try\r
- {\r
- double version = Double.valueOf(majorMRJVersion).doubleValue();\r
-\r
- if (version == 2)\r
- {\r
- jvm = MRJ_2_0;\r
- }\r
- else if ( (version >= 2.1) && (version < 3))\r
- {\r
- // Assume that all 2.x versions of MRJ work the same. MRJ 2.1 actually\r
- // works via Runtime.exec() and 2.2 supports that but has an openURL() method\r
- // as well that we currently ignore.\r
- jvm = MRJ_2_1;\r
- }\r
- else if (version == 3.0)\r
- {\r
- jvm = MRJ_3_0;\r
- }\r
- else if (version >= 3.1)\r
- {\r
- // Assume that all 3.1 and later versions of MRJ work the same.\r
- jvm = MRJ_3_1;\r
- }\r
- else\r
- {\r
- loadedWithoutErrors = false;\r
- errorMessage = "Unsupported MRJ version: " + version;\r
- }\r
- }\r
- catch (NumberFormatException nfe)\r
- {\r
- loadedWithoutErrors = false;\r
- errorMessage = "Invalid MRJ version: " + mrjVersion;\r
- }\r
- }\r
- else if (osName.startsWith("Windows"))\r
- {\r
- if (osName.indexOf("9") != -1)\r
- {\r
- jvm = WINDOWS_9x;\r
- }\r
- else\r
- {\r
- jvm = WINDOWS_NT;\r
- }\r
- }\r
- else\r
- {\r
- jvm = OTHER;\r
- }\r
-\r
- if (loadedWithoutErrors)\r
- { // if we haven't hit any errors yet\r
- loadedWithoutErrors = loadClasses();\r
- }\r
- }\r
-\r
- /**\r
- * This class should be never be instantiated; this just ensures so.\r
- */\r
- private BrowserLauncher()\r
- {\r
- }\r
-\r
- /**\r
- * Called by a static initializer to load any classes, fields, and methods required at runtime\r
- * to locate the user's web browser.\r
- * @return <code>true</code> if all intialization succeeded\r
- * <code>false</code> if any portion of the initialization failed\r
- */\r
- private static boolean loadClasses()\r
- {\r
- switch (jvm)\r
- {\r
- case MRJ_2_0:\r
-\r
- try\r
- {\r
- Class aeTargetClass = Class.forName("com.apple.MacOS.AETarget");\r
- Class osUtilsClass = Class.forName("com.apple.MacOS.OSUtils");\r
- Class appleEventClass = Class.forName(\r
- "com.apple.MacOS.AppleEvent");\r
- Class aeClass = Class.forName("com.apple.MacOS.ae");\r
- aeDescClass = Class.forName("com.apple.MacOS.AEDesc");\r
-\r
- aeTargetConstructor = aeTargetClass.getDeclaredConstructor(new Class[]\r
- {\r
- int.class\r
- });\r
- appleEventConstructor = appleEventClass.getDeclaredConstructor(new\r
- Class[]\r
- {\r
- int.class, int.class, aeTargetClass, int.class,\r
- int.class\r
- });\r
- aeDescConstructor = aeDescClass.getDeclaredConstructor(new Class[]\r
- {\r
- String.class\r
- });\r
-\r
- makeOSType = osUtilsClass.getDeclaredMethod("makeOSType",\r
- new Class[]\r
- {String.class});\r
- putParameter = appleEventClass.getDeclaredMethod("putParameter",\r
- new Class[]\r
- {int.class, aeDescClass});\r
- sendNoReply = appleEventClass.getDeclaredMethod("sendNoReply",\r
- new Class[]\r
- {});\r
-\r
- Field keyDirectObjectField = aeClass.getDeclaredField(\r
- "keyDirectObject");\r
- keyDirectObject = (Integer) keyDirectObjectField.get(null);\r
-\r
- Field autoGenerateReturnIDField = appleEventClass.getDeclaredField(\r
- "kAutoGenerateReturnID");\r
- kAutoGenerateReturnID = (Integer) autoGenerateReturnIDField.get(null);\r
-\r
- Field anyTransactionIDField = appleEventClass.getDeclaredField(\r
- "kAnyTransactionID");\r
- kAnyTransactionID = (Integer) anyTransactionIDField.get(null);\r
- }\r
- catch (ClassNotFoundException cnfe)\r
- {\r
- errorMessage = cnfe.getMessage();\r
-\r
- return false;\r
- }\r
- catch (NoSuchMethodException nsme)\r
- {\r
- errorMessage = nsme.getMessage();\r
-\r
- return false;\r
- }\r
- catch (NoSuchFieldException nsfe)\r
- {\r
- errorMessage = nsfe.getMessage();\r
-\r
- return false;\r
- }\r
- catch (IllegalAccessException iae)\r
- {\r
- errorMessage = iae.getMessage();\r
-\r
- return false;\r
- }\r
-\r
- break\r
- ;\r
-\r
- case MRJ_2_1:\r
-\r
- try\r
- {\r
- mrjFileUtilsClass = Class.forName("com.apple.mrj.MRJFileUtils");\r
- mrjOSTypeClass = Class.forName("com.apple.mrj.MRJOSType");\r
-\r
- Field systemFolderField = mrjFileUtilsClass.getDeclaredField(\r
- "kSystemFolderType");\r
- kSystemFolderType = systemFolderField.get(null);\r
- findFolder = mrjFileUtilsClass.getDeclaredMethod("findFolder",\r
- new Class[]\r
- {mrjOSTypeClass});\r
- getFileCreator = mrjFileUtilsClass.getDeclaredMethod("getFileCreator",\r
- new Class[]\r
- {File.class});\r
- getFileType = mrjFileUtilsClass.getDeclaredMethod("getFileType",\r
- new Class[]\r
- {File.class});\r
- }\r
- catch (ClassNotFoundException cnfe)\r
- {\r
- errorMessage = cnfe.getMessage();\r
-\r
- return false;\r
- }\r
- catch (NoSuchFieldException nsfe)\r
- {\r
- errorMessage = nsfe.getMessage();\r
-\r
- return false;\r
- }\r
- catch (NoSuchMethodException nsme)\r
- {\r
- errorMessage = nsme.getMessage();\r
-\r
- return false;\r
- }\r
- catch (SecurityException se)\r
- {\r
- errorMessage = se.getMessage();\r
-\r
- return false;\r
- }\r
- catch (IllegalAccessException iae)\r
- {\r
- errorMessage = iae.getMessage();\r
-\r
- return false;\r
- }\r
-\r
- break\r
- ;\r
-\r
- case MRJ_3_0:\r
-\r
- try\r
- {\r
- Class linker = Class.forName("com.apple.mrj.jdirect.Linker");\r
- Constructor constructor = linker.getConstructor(new Class[]\r
- {\r
- Class.class\r
- });\r
- linkage = constructor.newInstance(new Object[]\r
- {\r
- BrowserLauncher.class\r
- });\r
- }\r
- catch (ClassNotFoundException cnfe)\r
- {\r
- errorMessage = cnfe.getMessage();\r
-\r
- return false;\r
- }\r
- catch (NoSuchMethodException nsme)\r
- {\r
- errorMessage = nsme.getMessage();\r
-\r
- return false;\r
- }\r
- catch (InvocationTargetException ite)\r
- {\r
- errorMessage = ite.getMessage();\r
-\r
- return false;\r
- }\r
- catch (InstantiationException ie)\r
- {\r
- errorMessage = ie.getMessage();\r
-\r
- return false;\r
- }\r
- catch (IllegalAccessException iae)\r
- {\r
- errorMessage = iae.getMessage();\r
-\r
- return false;\r
- }\r
-\r
- break\r
- ;\r
-\r
- case MRJ_3_1:\r
-\r
- try\r
- {\r
- mrjFileUtilsClass = Class.forName("com.apple.mrj.MRJFileUtils");\r
- openURL = mrjFileUtilsClass.getDeclaredMethod("openURL",\r
- new Class[]\r
- {String.class});\r
- }\r
- catch (ClassNotFoundException cnfe)\r
- {\r
- errorMessage = cnfe.getMessage();\r
-\r
- return false;\r
- }\r
- catch (NoSuchMethodException nsme)\r
- {\r
- errorMessage = nsme.getMessage();\r
-\r
- return false;\r
- }\r
-\r
- break\r
- ;\r
-\r
- default:\r
- break;\r
- }\r
-\r
- return true;\r
- }\r
-\r
- /**\r
- * Attempts to locate the default web browser on the local system. s results so it\r
- * only locates the browser once for each use of this class per JVM instance.\r
- * @return The browser for the system. Note that this may not be what you would consider\r
- * to be a standard web browser; instead, it's the application that gets called to\r
- * open the default web browser. In some cases, this will be a non-String object\r
- * that provides the means of calling the default browser.\r
- */\r
- private static Object locateBrowser()\r
- {\r
- if (browser != null)\r
- {\r
- return browser;\r
- }\r
-\r
- switch (jvm)\r
- {\r
- case MRJ_2_0:\r
-\r
- try\r
- {\r
- Integer finderCreatorCode = (Integer) makeOSType.invoke(null,\r
- new Object[]\r
- {FINDER_CREATOR});\r
- Object aeTarget = aeTargetConstructor.newInstance(new Object[]\r
- {\r
- finderCreatorCode\r
- });\r
- Integer gurlType = (Integer) makeOSType.invoke(null,\r
- new Object[]\r
- {GURL_EVENT});\r
- Object appleEvent = appleEventConstructor.newInstance(new Object[]\r
- {\r
- gurlType, gurlType, aeTarget, kAutoGenerateReturnID,\r
- kAnyTransactionID\r
- });\r
-\r
- // Don't set browser = appleEvent because then the next time we call\r
- // locateBrowser(), we'll get the same AppleEvent, to which we'll already have\r
- // added the relevant parameter. Instead, regenerate the AppleEvent every time.\r
- // There's probably a way to do this better; if any has any ideas, please let\r
- // me know.\r
- return appleEvent;\r
- }\r
- catch (IllegalAccessException iae)\r
- {\r
- browser = null;\r
- errorMessage = iae.getMessage();\r
-\r
- return browser;\r
- }\r
- catch (InstantiationException ie)\r
- {\r
- browser = null;\r
- errorMessage = ie.getMessage();\r
-\r
- return browser;\r
- }\r
- catch (InvocationTargetException ite)\r
- {\r
- browser = null;\r
- errorMessage = ite.getMessage();\r
-\r
- return browser;\r
- }\r
-\r
- case MRJ_2_1:\r
-\r
- File systemFolder;\r
-\r
- try\r
- {\r
- systemFolder = (File) findFolder.invoke(null,\r
- new Object[]\r
- {kSystemFolderType});\r
- }\r
- catch (IllegalArgumentException iare)\r
- {\r
- browser = null;\r
- errorMessage = iare.getMessage();\r
-\r
- return browser;\r
- }\r
- catch (IllegalAccessException iae)\r
- {\r
- browser = null;\r
- errorMessage = iae.getMessage();\r
-\r
- return browser;\r
- }\r
- catch (InvocationTargetException ite)\r
- {\r
- browser = null;\r
- errorMessage = ite.getTargetException().getClass() + ": " +\r
- ite.getTargetException().getMessage();\r
-\r
- return browser;\r
- }\r
-\r
- String[] systemFolderFiles = systemFolder.list();\r
-\r
- // Avoid a FilenameFilter because that can't be stopped mid-list\r
- for (int i = 0; i < systemFolderFiles.length; i++)\r
- {\r
- try\r
- {\r
- File file = new File(systemFolder, systemFolderFiles[i]);\r
-\r
- if (!file.isFile())\r
- {\r
- continue;\r
- }\r
-\r
- // We're looking for a file with a creator code of 'MACS' and\r
- // a type of 'FNDR'. Only requiring the type results in non-Finder\r
- // applications being picked up on certain Mac OS 9 systems,\r
- // especially German ones, and sending a GURL event to those\r
- // applications results in a logout under Multiple Users.\r
- Object fileType = getFileType.invoke(null,\r
- new Object[]\r
- {file});\r
-\r
- if (FINDER_TYPE.equals(fileType.toString()))\r
- {\r
- Object fileCreator = getFileCreator.invoke(null,\r
- new Object[]\r
- {file});\r
-\r
- if (FINDER_CREATOR.equals(fileCreator.toString()))\r
- {\r
- browser = file.toString(); // Actually the Finder, but that's OK\r
-\r
- return browser;\r
- }\r
- }\r
- }\r
- catch (IllegalArgumentException iare)\r
- {\r
- errorMessage = iare.getMessage();\r
-\r
- return null;\r
- }\r
- catch (IllegalAccessException iae)\r
- {\r
- browser = null;\r
- errorMessage = iae.getMessage();\r
-\r
- return browser;\r
- }\r
- catch (InvocationTargetException ite)\r
- {\r
- browser = null;\r
- errorMessage = ite.getTargetException().getClass() + ": " +\r
- ite.getTargetException().getMessage();\r
-\r
- return browser;\r
- }\r
- }\r
-\r
- browser = null;\r
-\r
- break;\r
-\r
- case MRJ_3_0:\r
- case MRJ_3_1:\r
- browser = ""; // Return something non-null\r
-\r
- break;\r
-\r
- case WINDOWS_NT:\r
- browser = "cmd.exe";\r
-\r
- break;\r
-\r
- case WINDOWS_9x:\r
- browser = "command.com";\r
-\r
- break;\r
-\r
- case OTHER:\r
- default:\r
- browser = jalview.bin.Cache.getDefault("DEFAULT_BROWSER", "firefox");\r
-\r
- break;\r
- }\r
-\r
- return browser;\r
- }\r
-\r
- /**\r
- * used to ensure that browser is up-to-date after a configuration\r
- * change (Unix DEFAULT_BROWSER property change).\r
- */\r
- public static void resetBrowser()\r
- {\r
- browser = null;\r
- }\r
-\r
- /**\r
- * Attempts to open the default web browser to the given URL.\r
- * @param url The URL to open\r
- * @throws IOException If the web browser could not be located or does not run\r
- */\r
- public static void openURL(String url)\r
- throws IOException\r
- {\r
- if (!loadedWithoutErrors)\r
- {\r
- throw new IOException("Exception in finding browser: " +\r
- errorMessage);\r
- }\r
-\r
- Object browser = locateBrowser();\r
-\r
- if (browser == null)\r
- {\r
- throw new IOException("Unable to locate browser: " + errorMessage);\r
- }\r
-\r
- switch (jvm)\r
- {\r
- case MRJ_2_0:\r
-\r
- Object aeDesc = null;\r
-\r
- try\r
- {\r
- aeDesc = aeDescConstructor.newInstance(new Object[]\r
- {url});\r
- putParameter.invoke(browser,\r
- new Object[]\r
- {keyDirectObject, aeDesc});\r
- sendNoReply.invoke(browser, new Object[]\r
- {});\r
- }\r
- catch (InvocationTargetException ite)\r
- {\r
- throw new IOException(\r
- "InvocationTargetException while creating AEDesc: " +\r
- ite.getMessage());\r
- }\r
- catch (IllegalAccessException iae)\r
- {\r
- throw new IOException(\r
- "IllegalAccessException while building AppleEvent: " +\r
- iae.getMessage());\r
- }\r
- catch (InstantiationException ie)\r
- {\r
- throw new IOException(\r
- "InstantiationException while creating AEDesc: " +\r
- ie.getMessage());\r
- }\r
- finally\r
- {\r
- aeDesc = null; // Encourage it to get disposed if it was created\r
- browser = null; // Ditto\r
- }\r
-\r
- break;\r
-\r
- case MRJ_2_1:\r
- Runtime.getRuntime().exec(new String[]\r
- { (String) browser, url});\r
-\r
- break;\r
-\r
- case MRJ_3_0:\r
-\r
- int[] instance = new int[1];\r
- int result = ICStart(instance, 0);\r
-\r
- if (result == 0)\r
- {\r
- int[] selectionStart = new int[]\r
- {\r
- 0};\r
- byte[] urlBytes = url.getBytes();\r
- int[] selectionEnd = new int[]\r
- {\r
- urlBytes.length};\r
- result = ICLaunchURL(instance[0], new byte[]\r
- {0}, urlBytes,\r
- urlBytes.length, selectionStart, selectionEnd);\r
-\r
- if (result == 0)\r
- {\r
- // Ignore the return value; the URL was launched successfully\r
- // regardless of what happens here.\r
- ICStop(instance);\r
- }\r
- else\r
- {\r
- throw new IOException("Unable to launch URL: " + result);\r
- }\r
- }\r
- else\r
- {\r
- throw new IOException(\r
- "Unable to create an Internet Config instance: " + result);\r
- }\r
-\r
- break;\r
-\r
- case MRJ_3_1:\r
-\r
- try\r
- {\r
- openURL.invoke(null, new Object[]\r
- {url});\r
- }\r
- catch (InvocationTargetException ite)\r
- {\r
- throw new IOException(\r
- "InvocationTargetException while calling openURL: " +\r
- ite.getMessage());\r
- }\r
- catch (IllegalAccessException iae)\r
- {\r
- throw new IOException(\r
- "IllegalAccessException while calling openURL: " +\r
- iae.getMessage());\r
- }\r
-\r
- break\r
- ;\r
-\r
- case WINDOWS_NT:\r
- case WINDOWS_9x:\r
-\r
- // Add quotes around the URL to allow ampersands and other special\r
- // characters to work.\r
- Process process = Runtime.getRuntime().exec(new String[]\r
- {\r
- (String) browser, FIRST_WINDOWS_PARAMETER,\r
- SECOND_WINDOWS_PARAMETER, THIRD_WINDOWS_PARAMETER,\r
- '"' + url + '"'\r
- });\r
-\r
- // This avoids a memory leak on some versions of Java on Windows.\r
- // That's hinted at in <http://developer.java.sun.com/developer/qow/archive/68/>.\r
- try\r
- {\r
- process.waitFor();\r
- process.exitValue();\r
- }\r
- catch (InterruptedException ie)\r
- {\r
- throw new IOException(\r
- "InterruptedException while launching browser: " +\r
- ie.getMessage());\r
- }\r
-\r
- break\r
- ;\r
-\r
- case OTHER:\r
-\r
- // Assume that we're on Unix and that Netscape (actually Firefox) is installed\r
- // First, attempt to open the URL in a currently running session of Netscape\r
- // JBPNote log debug\r
-\r
- /* System.out.println("Executing : "+browser+" "+\r
- NETSCAPE_REMOTE_PARAMETER+" "+\r
- NETSCAPE_OPEN_PARAMETER_START +\r
- url +\r
- NETSCAPE_OPEN_NEW_WINDOW +\r
- NETSCAPE_OPEN_PARAMETER_END);\r
- */\r
- process = Runtime.getRuntime().exec(new String[]\r
- {\r
- (String) browser,\r
- NETSCAPE_REMOTE_PARAMETER,\r
-\r
- NETSCAPE_OPEN_PARAMETER_START + url +\r
- NETSCAPE_OPEN_NEW_WINDOW +\r
- NETSCAPE_OPEN_PARAMETER_END\r
- });\r
-\r
- try\r
- {\r
- int exitCode = process.waitFor();\r
-\r
- if (exitCode != 0)\r
- { // if Netscape was not open\r
- Runtime.getRuntime().exec(new String[]\r
- { (String) browser, url});\r
- }\r
- }\r
- catch (InterruptedException ie)\r
- {\r
- throw new IOException(\r
- "InterruptedException while launching browser: " +\r
- ie.getMessage());\r
- }\r
-\r
- break\r
- ;\r
-\r
- default:\r
-\r
- // This should never occur, but if it does, we'll try the simplest thing possible\r
- Runtime.getRuntime().exec(new String[]\r
- { (String) browser, url});\r
-\r
- break;\r
- }\r
- }\r
-\r
- /**\r
- * Methods required for Mac OS X. The presence of native methods does not cause\r
- * any problems on other platforms.\r
- */\r
- private native static int ICStart(int[] instance, int signature);\r
-\r
- private native static int ICStop(int[] instance);\r
-\r
- private native static int ICLaunchURL(int instance, byte[] hint,\r
- byte[] data, int len,\r
- int[] selectionStart,\r
- int[] selectionEnd);\r
-}\r
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.7)
+ * Copyright (C) 2011 J Procter, AM Waterhouse, J Engelhardt, LM Lui, G Barton, M Clamp, S Searle
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * Jalview 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+ */
+package jalview.util;
+
+import java.io.*;
+import java.lang.reflect.*;
+
+/**
+ * BrowserLauncher is a class that provides one static method, openURL, which
+ * opens the default web browser for the current user of the system to the given
+ * URL. It may support other protocols depending on the system -- mailto, ftp,
+ * etc. -- but that has not been rigorously tested and is not guaranteed to
+ * work.
+ * <p>
+ * Yes, this is platform-specific code, and yes, it may rely on classes on
+ * certain platforms that are not part of the standard JDK. What we're trying to
+ * do, though, is to take something that's frequently desirable but inherently
+ * platform-specific -- opening a default browser -- and allow programmers (you,
+ * for example) to do so without worrying about dropping into native code or
+ * doing anything else similarly evil.
+ * <p>
+ * Anyway, this code is completely in Java and will run on all JDK 1.1-compliant
+ * systems without modification or a need for additional libraries. All classes
+ * that are required on certain platforms to allow this to run are dynamically
+ * loaded at runtime via reflection and, if not found, will not cause this to do
+ * anything other than returning an error when opening the browser.
+ * <p>
+ * There are certain system requirements for this class, as it's running through
+ * Runtime.exec(), which is Java's way of making a native system call.
+ * Currently, this requires that a Macintosh have a Finder which supports the
+ * GURL event, which is true for Mac OS 8.0 and 8.1 systems that have the
+ * Internet Scripting AppleScript dictionary installed in the Scripting
+ * Additions folder in the Extensions folder (which is installed by default as
+ * far as I know under Mac OS 8.0 and 8.1), and for all Mac OS 8.5 and later
+ * systems. On Windows, it only runs under Win32 systems (Windows 95, 98, and NT
+ * 4.0, as well as later versions of all). On other systems, this drops back
+ * from the inherently platform-sensitive concept of a default browser and
+ * simply attempts to launch Netscape via a shell command.
+ * <p>
+ * This code is Copyright 1999-2001 by Eric Albert (ejalbert\@cs.stanford.edu)
+ * and may be redistributed or modified in any form without restrictions as long
+ * as the portion of this comment from this paragraph through the end of the
+ * comment is not removed. The author requests that he be notified of any
+ * application, applet, or other binary that makes use of this code, but that's
+ * more out of curiosity than anything and is not required. This software
+ * includes no warranty. The author is not repsonsible for any loss of data or
+ * functionality or any adverse or unexpected effects of using this software.
+ * <p>
+ * Credits: <br>
+ * Steven Spencer, JavaWorld magazine (<a
+ * href="http://www.javaworld.com/javaworld/javatips/jw-javatip66.html">Java Tip
+ * 66</a>) <br>
+ * Thanks also to Ron B. Yeh, Eric Shapiro, Ben Engber, Paul Teitlebaum, Andrea
+ * Cantatore, Larry Barowski, Trevor Bedzek, Frank Miedrich, and Ron Rabakukk
+ *
+ * @author Eric Albert (<a
+ * href="mailto:ejalbert@cs.stanford.edu">ejalbert@cs.stanford.edu</a>)
+ * @version 1.4b1 (Released June 20, 2001)
+ */
+public class BrowserLauncher
+{
+ /**
+ * The Java virtual machine that we are running on. Actually, in most cases we
+ * only care about the operating system, but some operating systems require us
+ * to switch on the VM.
+ */
+ private static int jvm;
+
+ /** The browser for the system */
+ private static Object browser;
+
+ /**
+ * Caches whether any classes, methods, and fields that are not part of the
+ * JDK and need to be dynamically loaded at runtime loaded successfully.
+ * <p>
+ * Note that if this is <code>false</code>, <code>openURL()</code> will always
+ * return an IOException.
+ */
+ private static boolean loadedWithoutErrors;
+
+ /** The com.apple.mrj.MRJFileUtils class */
+ private static Class mrjFileUtilsClass;
+
+ /** The com.apple.mrj.MRJOSType class */
+ private static Class mrjOSTypeClass;
+
+ /** The com.apple.MacOS.AEDesc class */
+ private static Class aeDescClass;
+
+ /** The <init>(int) method of com.apple.MacOS.AETarget */
+ private static Constructor aeTargetConstructor;
+
+ /** The <init>(int, int, int) method of com.apple.MacOS.AppleEvent */
+ private static Constructor appleEventConstructor;
+
+ /** The <init>(String) method of com.apple.MacOS.AEDesc */
+ private static Constructor aeDescConstructor;
+
+ /** The findFolder method of com.apple.mrj.MRJFileUtils */
+ private static Method findFolder;
+
+ /** The getFileCreator method of com.apple.mrj.MRJFileUtils */
+ private static Method getFileCreator;
+
+ /** The getFileType method of com.apple.mrj.MRJFileUtils */
+ private static Method getFileType;
+
+ /** The openURL method of com.apple.mrj.MRJFileUtils */
+ private static Method openURL;
+
+ /** The makeOSType method of com.apple.MacOS.OSUtils */
+ private static Method makeOSType;
+
+ /** The putParameter method of com.apple.MacOS.AppleEvent */
+ private static Method putParameter;
+
+ /** The sendNoReply method of com.apple.MacOS.AppleEvent */
+ private static Method sendNoReply;
+
+ /** Actually an MRJOSType pointing to the System Folder on a Macintosh */
+ private static Object kSystemFolderType;
+
+ /** The keyDirectObject AppleEvent parameter type */
+ private static Integer keyDirectObject;
+
+ /** The kAutoGenerateReturnID AppleEvent code */
+ private static Integer kAutoGenerateReturnID;
+
+ /** The kAnyTransactionID AppleEvent code */
+ private static Integer kAnyTransactionID;
+
+ /** The linkage object required for JDirect 3 on Mac OS X. */
+ private static Object linkage;
+
+ /** The framework to reference on Mac OS X */
+ private static final String JDirect_MacOSX = "/System/Library/Frameworks/Carbon.framework/Frameworks/HIToolbox.framework/HIToolbox";
+
+ /** JVM constant for MRJ 2.0 */
+ private static final int MRJ_2_0 = 0;
+
+ /** JVM constant for MRJ 2.1 or later */
+ private static final int MRJ_2_1 = 1;
+
+ /** JVM constant for Java on Mac OS X 10.0 (MRJ 3.0) */
+ private static final int MRJ_3_0 = 3;
+
+ /** JVM constant for MRJ 3.1 */
+ private static final int MRJ_3_1 = 4;
+
+ /** JVM constant for any Windows NT JVM */
+ private static final int WINDOWS_NT = 5;
+
+ /** JVM constant for any Windows 9x JVM */
+ private static final int WINDOWS_9x = 6;
+
+ /** JVM constant for any other platform */
+ private static final int OTHER = -1;
+
+ /**
+ * The file type of the Finder on a Macintosh. Hardcoding "Finder" would keep
+ * non-U.S. English systems from working properly.
+ */
+ private static final String FINDER_TYPE = "FNDR";
+
+ /**
+ * The creator code of the Finder on a Macintosh, which is needed to send
+ * AppleEvents to the application.
+ */
+ private static final String FINDER_CREATOR = "MACS";
+
+ /** The name for the AppleEvent type corresponding to a GetURL event. */
+ private static final String GURL_EVENT = "GURL";
+
+ /**
+ * The first parameter that needs to be passed into Runtime.exec() to open the
+ * default web browser on Windows.
+ */
+ private static final String FIRST_WINDOWS_PARAMETER = "/c";
+
+ /** The second parameter for Runtime.exec() on Windows. */
+ private static final String SECOND_WINDOWS_PARAMETER = "start";
+
+ /**
+ * The third parameter for Runtime.exec() on Windows. This is a "title"
+ * parameter that the command line expects. Setting this parameter allows URLs
+ * containing spaces to work.
+ */
+ private static final String THIRD_WINDOWS_PARAMETER = "\"\"";
+
+ /**
+ * The shell parameters for Netscape that opens a given URL in an already-open
+ * copy of Netscape on many command-line systems.
+ */
+ private static final String NETSCAPE_REMOTE_PARAMETER = "-remote";
+
+ private static final String NETSCAPE_OPEN_PARAMETER_START = "openURL(";
+
+ private static final String NETSCAPE_OPEN_NEW_WINDOW = ", new-window";
+
+ private static final String NETSCAPE_OPEN_PARAMETER_END = ")";
+
+ /**
+ * The message from any exception thrown throughout the initialization
+ * process.
+ */
+ private static String errorMessage;
+
+ /**
+ * An initialization block that determines the operating system and loads the
+ * necessary runtime data.
+ */
+ static
+ {
+ loadedWithoutErrors = true;
+
+ String osName = System.getProperty("os.name");
+
+ if (osName.startsWith("Mac OS"))
+ {
+ String mrjVersion = System.getProperty("mrj.version");
+ String majorMRJVersion = mrjVersion.substring(0, 3);
+
+ try
+ {
+ double version = Double.valueOf(majorMRJVersion).doubleValue();
+
+ if (version == 2)
+ {
+ jvm = MRJ_2_0;
+ }
+ else if ((version >= 2.1) && (version < 3))
+ {
+ // Assume that all 2.x versions of MRJ work the same. MRJ 2.1 actually
+ // works via Runtime.exec() and 2.2 supports that but has an openURL()
+ // method
+ // as well that we currently ignore.
+ jvm = MRJ_2_1;
+ }
+ else if (version == 3.0)
+ {
+ jvm = MRJ_3_0;
+ }
+ else if (version >= 3.1)
+ {
+ // Assume that all 3.1 and later versions of MRJ work the same.
+ jvm = MRJ_3_1;
+ }
+ else
+ {
+ loadedWithoutErrors = false;
+ errorMessage = "Unsupported MRJ version: " + version;
+ }
+ } catch (NumberFormatException nfe)
+ {
+ loadedWithoutErrors = false;
+ errorMessage = "Invalid MRJ version: " + mrjVersion;
+ }
+ }
+ else if (osName.startsWith("Windows"))
+ {
+ if (osName.indexOf("9") != -1)
+ {
+ jvm = WINDOWS_9x;
+ }
+ else
+ {
+ jvm = WINDOWS_NT;
+ }
+ }
+ else
+ {
+ jvm = OTHER;
+ }
+
+ if (loadedWithoutErrors)
+ { // if we haven't hit any errors yet
+ loadedWithoutErrors = loadClasses();
+ }
+ }
+
+ /**
+ * This class should be never be instantiated; this just ensures so.
+ */
+ private BrowserLauncher()
+ {
+ }
+
+ /**
+ * Called by a static initializer to load any classes, fields, and methods
+ * required at runtime to locate the user's web browser.
+ *
+ * @return <code>true</code> if all intialization succeeded <code>false</code>
+ * if any portion of the initialization failed
+ */
+ private static boolean loadClasses()
+ {
+ switch (jvm)
+ {
+ case MRJ_2_0:
+
+ try
+ {
+ Class aeTargetClass = Class.forName("com.apple.MacOS.AETarget");
+ Class osUtilsClass = Class.forName("com.apple.MacOS.OSUtils");
+ Class appleEventClass = Class.forName("com.apple.MacOS.AppleEvent");
+ Class aeClass = Class.forName("com.apple.MacOS.ae");
+ aeDescClass = Class.forName("com.apple.MacOS.AEDesc");
+
+ aeTargetConstructor = aeTargetClass
+ .getDeclaredConstructor(new Class[]
+ { int.class });
+ appleEventConstructor = appleEventClass
+ .getDeclaredConstructor(new Class[]
+ { int.class, int.class, aeTargetClass, int.class, int.class });
+ aeDescConstructor = aeDescClass.getDeclaredConstructor(new Class[]
+ { String.class });
+
+ makeOSType = osUtilsClass.getDeclaredMethod("makeOSType",
+ new Class[]
+ { String.class });
+ putParameter = appleEventClass.getDeclaredMethod("putParameter",
+ new Class[]
+ { int.class, aeDescClass });
+ sendNoReply = appleEventClass.getDeclaredMethod("sendNoReply",
+ new Class[]
+ {});
+
+ Field keyDirectObjectField = aeClass
+ .getDeclaredField("keyDirectObject");
+ keyDirectObject = (Integer) keyDirectObjectField.get(null);
+
+ Field autoGenerateReturnIDField = appleEventClass
+ .getDeclaredField("kAutoGenerateReturnID");
+ kAutoGenerateReturnID = (Integer) autoGenerateReturnIDField
+ .get(null);
+
+ Field anyTransactionIDField = appleEventClass
+ .getDeclaredField("kAnyTransactionID");
+ kAnyTransactionID = (Integer) anyTransactionIDField.get(null);
+ } catch (ClassNotFoundException cnfe)
+ {
+ errorMessage = cnfe.getMessage();
+
+ return false;
+ } catch (NoSuchMethodException nsme)
+ {
+ errorMessage = nsme.getMessage();
+
+ return false;
+ } catch (NoSuchFieldException nsfe)
+ {
+ errorMessage = nsfe.getMessage();
+
+ return false;
+ } catch (IllegalAccessException iae)
+ {
+ errorMessage = iae.getMessage();
+
+ return false;
+ }
+
+ break;
+
+ case MRJ_2_1:
+
+ try
+ {
+ mrjFileUtilsClass = Class.forName("com.apple.mrj.MRJFileUtils");
+ mrjOSTypeClass = Class.forName("com.apple.mrj.MRJOSType");
+
+ Field systemFolderField = mrjFileUtilsClass
+ .getDeclaredField("kSystemFolderType");
+ kSystemFolderType = systemFolderField.get(null);
+ findFolder = mrjFileUtilsClass.getDeclaredMethod("findFolder",
+ new Class[]
+ { mrjOSTypeClass });
+ getFileCreator = mrjFileUtilsClass.getDeclaredMethod(
+ "getFileCreator", new Class[]
+ { File.class });
+ getFileType = mrjFileUtilsClass.getDeclaredMethod("getFileType",
+ new Class[]
+ { File.class });
+ } catch (ClassNotFoundException cnfe)
+ {
+ errorMessage = cnfe.getMessage();
+
+ return false;
+ } catch (NoSuchFieldException nsfe)
+ {
+ errorMessage = nsfe.getMessage();
+
+ return false;
+ } catch (NoSuchMethodException nsme)
+ {
+ errorMessage = nsme.getMessage();
+
+ return false;
+ } catch (SecurityException se)
+ {
+ errorMessage = se.getMessage();
+
+ return false;
+ } catch (IllegalAccessException iae)
+ {
+ errorMessage = iae.getMessage();
+
+ return false;
+ }
+
+ break;
+
+ case MRJ_3_0:
+
+ try
+ {
+ Class linker = Class.forName("com.apple.mrj.jdirect.Linker");
+ Constructor constructor = linker.getConstructor(new Class[]
+ { Class.class });
+ linkage = constructor.newInstance(new Object[]
+ { BrowserLauncher.class });
+ } catch (ClassNotFoundException cnfe)
+ {
+ errorMessage = cnfe.getMessage();
+
+ return false;
+ } catch (NoSuchMethodException nsme)
+ {
+ errorMessage = nsme.getMessage();
+
+ return false;
+ } catch (InvocationTargetException ite)
+ {
+ errorMessage = ite.getMessage();
+
+ return false;
+ } catch (InstantiationException ie)
+ {
+ errorMessage = ie.getMessage();
+
+ return false;
+ } catch (IllegalAccessException iae)
+ {
+ errorMessage = iae.getMessage();
+
+ return false;
+ }
+
+ break;
+
+ case MRJ_3_1:
+
+ try
+ {
+ mrjFileUtilsClass = Class.forName("com.apple.mrj.MRJFileUtils");
+ openURL = mrjFileUtilsClass.getDeclaredMethod("openURL",
+ new Class[]
+ { String.class });
+ } catch (ClassNotFoundException cnfe)
+ {
+ errorMessage = cnfe.getMessage();
+
+ return false;
+ } catch (NoSuchMethodException nsme)
+ {
+ errorMessage = nsme.getMessage();
+
+ return false;
+ }
+
+ break;
+
+ default:
+ break;
+ }
+
+ return true;
+ }
+
+ /**
+ * Attempts to locate the default web browser on the local system. s results
+ * so it only locates the browser once for each use of this class per JVM
+ * instance.
+ *
+ * @return The browser for the system. Note that this may not be what you
+ * would consider to be a standard web browser; instead, it's the
+ * application that gets called to open the default web browser. In
+ * some cases, this will be a non-String object that provides the
+ * means of calling the default browser.
+ */
+ private static Object locateBrowser()
+ {
+ if (browser != null)
+ {
+ return browser;
+ }
+
+ switch (jvm)
+ {
+ case MRJ_2_0:
+
+ try
+ {
+ Integer finderCreatorCode = (Integer) makeOSType.invoke(null,
+ new Object[]
+ { FINDER_CREATOR });
+ Object aeTarget = aeTargetConstructor.newInstance(new Object[]
+ { finderCreatorCode });
+ Integer gurlType = (Integer) makeOSType.invoke(null, new Object[]
+ { GURL_EVENT });
+ Object appleEvent = appleEventConstructor.newInstance(new Object[]
+ { gurlType, gurlType, aeTarget, kAutoGenerateReturnID,
+ kAnyTransactionID });
+
+ // Don't set browser = appleEvent because then the next time we call
+ // locateBrowser(), we'll get the same AppleEvent, to which we'll
+ // already have
+ // added the relevant parameter. Instead, regenerate the AppleEvent
+ // every time.
+ // There's probably a way to do this better; if any has any ideas,
+ // please let
+ // me know.
+ return appleEvent;
+ } catch (IllegalAccessException iae)
+ {
+ browser = null;
+ errorMessage = iae.getMessage();
+
+ return browser;
+ } catch (InstantiationException ie)
+ {
+ browser = null;
+ errorMessage = ie.getMessage();
+
+ return browser;
+ } catch (InvocationTargetException ite)
+ {
+ browser = null;
+ errorMessage = ite.getMessage();
+
+ return browser;
+ }
+
+ case MRJ_2_1:
+
+ File systemFolder;
+
+ try
+ {
+ systemFolder = (File) findFolder.invoke(null, new Object[]
+ { kSystemFolderType });
+ } catch (IllegalArgumentException iare)
+ {
+ browser = null;
+ errorMessage = iare.getMessage();
+
+ return browser;
+ } catch (IllegalAccessException iae)
+ {
+ browser = null;
+ errorMessage = iae.getMessage();
+
+ return browser;
+ } catch (InvocationTargetException ite)
+ {
+ browser = null;
+ errorMessage = ite.getTargetException().getClass() + ": "
+ + ite.getTargetException().getMessage();
+
+ return browser;
+ }
+
+ String[] systemFolderFiles = systemFolder.list();
+
+ // Avoid a FilenameFilter because that can't be stopped mid-list
+ for (int i = 0; i < systemFolderFiles.length; i++)
+ {
+ try
+ {
+ File file = new File(systemFolder, systemFolderFiles[i]);
+
+ if (!file.isFile())
+ {
+ continue;
+ }
+
+ // We're looking for a file with a creator code of 'MACS' and
+ // a type of 'FNDR'. Only requiring the type results in non-Finder
+ // applications being picked up on certain Mac OS 9 systems,
+ // especially German ones, and sending a GURL event to those
+ // applications results in a logout under Multiple Users.
+ Object fileType = getFileType.invoke(null, new Object[]
+ { file });
+
+ if (FINDER_TYPE.equals(fileType.toString()))
+ {
+ Object fileCreator = getFileCreator.invoke(null, new Object[]
+ { file });
+
+ if (FINDER_CREATOR.equals(fileCreator.toString()))
+ {
+ browser = file.toString(); // Actually the Finder, but that's OK
+
+ return browser;
+ }
+ }
+ } catch (IllegalArgumentException iare)
+ {
+ errorMessage = iare.getMessage();
+
+ return null;
+ } catch (IllegalAccessException iae)
+ {
+ browser = null;
+ errorMessage = iae.getMessage();
+
+ return browser;
+ } catch (InvocationTargetException ite)
+ {
+ browser = null;
+ errorMessage = ite.getTargetException().getClass() + ": "
+ + ite.getTargetException().getMessage();
+
+ return browser;
+ }
+ }
+
+ browser = null;
+
+ break;
+
+ case MRJ_3_0:
+ case MRJ_3_1:
+ browser = ""; // Return something non-null
+
+ break;
+
+ case WINDOWS_NT:
+ browser = "cmd.exe";
+
+ break;
+
+ case WINDOWS_9x:
+ browser = "command.com";
+
+ break;
+
+ case OTHER:
+ default:
+ browser = jalview.bin.Cache.getDefault("DEFAULT_BROWSER", "firefox");
+
+ break;
+ }
+
+ return browser;
+ }
+
+ /**
+ * used to ensure that browser is up-to-date after a configuration change
+ * (Unix DEFAULT_BROWSER property change).
+ */
+ public static void resetBrowser()
+ {
+ browser = null;
+ }
+
+ /**
+ * Attempts to open the default web browser to the given URL.
+ *
+ * @param url
+ * The URL to open
+ * @throws IOException
+ * If the web browser could not be located or does not run
+ */
+ public static void openURL(String url) throws IOException
+ {
+ if (!loadedWithoutErrors)
+ {
+ throw new IOException("Exception in finding browser: " + errorMessage);
+ }
+
+ Object browser = locateBrowser();
+
+ if (browser == null)
+ {
+ throw new IOException("Unable to locate browser: " + errorMessage);
+ }
+
+ switch (jvm)
+ {
+ case MRJ_2_0:
+
+ Object aeDesc = null;
+
+ try
+ {
+ aeDesc = aeDescConstructor.newInstance(new Object[]
+ { url });
+ putParameter.invoke(browser, new Object[]
+ { keyDirectObject, aeDesc });
+ sendNoReply.invoke(browser, new Object[]
+ {});
+ } catch (InvocationTargetException ite)
+ {
+ throw new IOException(
+ "InvocationTargetException while creating AEDesc: "
+ + ite.getMessage());
+ } catch (IllegalAccessException iae)
+ {
+ throw new IOException(
+ "IllegalAccessException while building AppleEvent: "
+ + iae.getMessage());
+ } catch (InstantiationException ie)
+ {
+ throw new IOException(
+ "InstantiationException while creating AEDesc: "
+ + ie.getMessage());
+ } finally
+ {
+ aeDesc = null; // Encourage it to get disposed if it was created
+ browser = null; // Ditto
+ }
+
+ break;
+
+ case MRJ_2_1:
+ Runtime.getRuntime().exec(new String[]
+ { (String) browser, url });
+
+ break;
+
+ case MRJ_3_0:
+
+ int[] instance = new int[1];
+ int result = ICStart(instance, 0);
+
+ if (result == 0)
+ {
+ int[] selectionStart = new int[]
+ { 0 };
+ byte[] urlBytes = url.getBytes();
+ int[] selectionEnd = new int[]
+ { urlBytes.length };
+ result = ICLaunchURL(instance[0], new byte[]
+ { 0 }, urlBytes, urlBytes.length, selectionStart, selectionEnd);
+
+ if (result == 0)
+ {
+ // Ignore the return value; the URL was launched successfully
+ // regardless of what happens here.
+ ICStop(instance);
+ }
+ else
+ {
+ throw new IOException("Unable to launch URL: " + result);
+ }
+ }
+ else
+ {
+ throw new IOException(
+ "Unable to create an Internet Config instance: " + result);
+ }
+
+ break;
+
+ case MRJ_3_1:
+
+ try
+ {
+ openURL.invoke(null, new Object[]
+ { url });
+ } catch (InvocationTargetException ite)
+ {
+ throw new IOException(
+ "InvocationTargetException while calling openURL: "
+ + ite.getMessage());
+ } catch (IllegalAccessException iae)
+ {
+ throw new IOException(
+ "IllegalAccessException while calling openURL: "
+ + iae.getMessage());
+ }
+
+ break;
+
+ case WINDOWS_NT:
+ case WINDOWS_9x:
+
+ // Add quotes around the URL to allow ampersands and other special
+ // characters to work.
+ Process process = Runtime.getRuntime().exec(
+ new String[]
+ { (String) browser, FIRST_WINDOWS_PARAMETER,
+ SECOND_WINDOWS_PARAMETER, THIRD_WINDOWS_PARAMETER,
+ '"' + url + '"' });
+
+ // This avoids a memory leak on some versions of Java on Windows.
+ // That's hinted at in
+ // <http://developer.java.sun.com/developer/qow/archive/68/>.
+ try
+ {
+ process.waitFor();
+ process.exitValue();
+ } catch (InterruptedException ie)
+ {
+ throw new IOException(
+ "InterruptedException while launching browser: "
+ + ie.getMessage());
+ }
+
+ break;
+
+ case OTHER:
+
+ // Assume that we're on Unix and that Netscape (actually Firefox) is
+ // installed
+ // First, attempt to open the URL in a currently running session of
+ // Netscape
+ // JBPNote log debug
+
+ /*
+ * System.out.println("Executing : "+browser+" "+
+ * NETSCAPE_REMOTE_PARAMETER+" "+ NETSCAPE_OPEN_PARAMETER_START + url +
+ * NETSCAPE_OPEN_NEW_WINDOW + NETSCAPE_OPEN_PARAMETER_END);
+ */
+ process = Runtime.getRuntime().exec(
+ new String[]
+ {
+ (String) browser,
+ NETSCAPE_REMOTE_PARAMETER,
+
+ NETSCAPE_OPEN_PARAMETER_START + url
+ + NETSCAPE_OPEN_NEW_WINDOW
+ + NETSCAPE_OPEN_PARAMETER_END });
+
+ try
+ {
+ int exitCode = process.waitFor();
+
+ if (exitCode != 0)
+ { // if Netscape was not open
+ Runtime.getRuntime().exec(new String[]
+ { (String) browser, url });
+ }
+ } catch (InterruptedException ie)
+ {
+ throw new IOException(
+ "InterruptedException while launching browser: "
+ + ie.getMessage());
+ }
+
+ break;
+
+ default:
+
+ // This should never occur, but if it does, we'll try the simplest thing
+ // possible
+ Runtime.getRuntime().exec(new String[]
+ { (String) browser, url });
+
+ break;
+ }
+ }
+
+ /**
+ * Methods required for Mac OS X. The presence of native methods does not
+ * cause any problems on other platforms.
+ */
+ private native static int ICStart(int[] instance, int signature);
+
+ private native static int ICStop(int[] instance);
+
+ private native static int ICLaunchURL(int instance, byte[] hint,
+ byte[] data, int len, int[] selectionStart, int[] selectionEnd);
+}
git://source.jalview.org / jalview.git / blobdiff