- * 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. + * 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. *
- * 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. + * 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. *
- * 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. + * 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. *
- * 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. + * 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. *
- * Credits:
- *
Steven Spencer, JavaWorld magazine (Java Tip 66)
- *
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 (ejalbert@cs.stanford.edu)
+ * Credits:
+ * Steven Spencer, JavaWorld magazine (Java Tip
+ * 66)
+ * 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 (ejalbert@cs.stanford.edu)
* @version 1.4b1 (Released June 20, 2001)
*/
-public class BrowserLauncher {
+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 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;
- /** 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.
+ *
+ * Note that if this is false, openURL() will always
+ * return an IOException.
+ */
+ private static boolean loadedWithoutErrors;
- /**
- * Caches whether any classes, methods, and fields that are not part of the JDK and need to
- * be dynamically loaded at runtime loaded successfully.
- *
- * Note that if this is false, openURL() will always return an
- * IOException.
- */
- private static boolean loadedWithoutErrors;
+ /** The com.apple.mrj.MRJFileUtils class */
+ private static Class mrjFileUtilsClass;
- /** The com.apple.mrj.MRJFileUtils class */
- private static Class mrjFileUtilsClass;
+ /** The com.apple.mrj.MRJOSType class */
+ private static Class mrjOSTypeClass;
- /** The com.apple.mrj.MRJOSType class */
- private static Class mrjOSTypeClass;
+ /** The com.apple.MacOS.AEDesc class */
+ private static Class aeDescClass;
- /** 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) 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>(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 <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 findFolder method of com.apple.mrj.MRJFileUtils */
- private static Method findFolder;
+ /** The getFileCreator method of com.apple.mrj.MRJFileUtils */
+ private static Method getFileCreator;
- /** 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 getFileType method of com.apple.mrj.MRJFileUtils */
- private static Method getFileType;
+ /** The openURL method of com.apple.mrj.MRJFileUtils */
+ private static Method openURL;
- /** 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 makeOSType method of com.apple.MacOS.OSUtils */
- private static Method makeOSType;
+ /** The putParameter method of com.apple.MacOS.AppleEvent */
+ private static Method putParameter;
- /** The putParameter method of com.apple.MacOS.AppleEvent */
- private static Method putParameter;
+ /** The sendNoReply method of com.apple.MacOS.AppleEvent */
+ private static Method sendNoReply;
- /** 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();
- }
- }
+ /** Actually an MRJOSType pointing to the System Folder on a Macintosh */
+ private static Object kSystemFolderType;
- /**
- * 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 true if all intialization succeeded
- * false 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;
- }
+ /** The keyDirectObject AppleEvent parameter type */
+ private static Integer keyDirectObject;
- /**
- * Attempts to locate the default web browser on the local system. Caches 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) {
- browser = browser;
- 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.applicationProperties.getProperty("jalview.browser");
- if (browser==null) {
- // hope netscape exists :-/
- browser = "netscape";
- }
- break;
- }
- return browser;
- }
+ /** 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";
- /**
- * 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 true if all intialization succeeded false
+ * 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(MessageManager.formatMessage("exception.browser_not_found", new String[]{errorMessage}));
+ }
+
+ Object browser = locateBrowser();
+
+ if (browser == null)
+ {
+ throw new IOException(MessageManager.formatMessage("exception.browser_unable_to_locate", new String[]{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(MessageManager.formatMessage("exception.invocation_target_exception_creating_aedesc", new String[]{ite.getMessage()}));
+ } catch (IllegalAccessException iae)
+ {
+ throw new IOException(MessageManager.formatMessage("exception.illegal_access_building_apple_evt", new String[]{iae.getMessage()}));
+ } catch (InstantiationException ie)
+ {
+ throw new IOException(MessageManager.formatMessage("exception.illegal_access_building_apple_evt", new String[]{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(MessageManager.formatMessage("exception.unable_to_launch_url", new String[]{Integer.valueOf(result).toString()}));
+ }
+ }
+ else
+ {
+ throw new IOException(MessageManager.formatMessage("exception.unable_to_create_internet_config", new String[]{Integer.valueOf(result).toString()}));
+ }
+
+ break;
+
+ case MRJ_3_1:
+
+ try
+ {
+ openURL.invoke(null, new Object[]
+ { url });
+ } catch (InvocationTargetException ite)
+ {
+ throw new IOException(MessageManager.formatMessage("exception.invocation_target_calling_url", new String[]{ite.getMessage()}));
+ } catch (IllegalAccessException iae)
+ {
+ throw new IOException(MessageManager.formatMessage("exception.illegal_access_calling_url", new String[]{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
+ //