JAL-629 Opening files in new windows. not working yet
[jalview.git] / src / jalview / bin / Jalview.java
index 08a8c5b..bc8c997 100755 (executable)
@@ -26,7 +26,9 @@ import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.io.OutputStream;
 import java.io.OutputStreamWriter;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.net.MalformedURLException;
 import java.net.URI;
@@ -40,22 +42,37 @@ import java.security.Policy;
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
+import java.util.Properties;
 import java.util.Vector;
 import java.util.logging.ConsoleHandler;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import javax.swing.JDialog;
+import javax.swing.JFrame;
+import javax.swing.JOptionPane;
+import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
 import javax.swing.UIManager.LookAndFeelInfo;
+import javax.swing.UnsupportedLookAndFeelException;
 
+import com.formdev.flatlaf.FlatLightLaf;
+import com.formdev.flatlaf.themes.FlatMacLightLaf;
+import com.formdev.flatlaf.util.SystemInfo;
 import com.threerings.getdown.util.LaunchUtil;
 
+//import edu.stanford.ejalbert.launching.IBrowserLaunching;
 import groovy.lang.Binding;
 import groovy.util.GroovyScriptEngine;
+import jalview.bin.argparser.Arg;
+import jalview.bin.argparser.ArgParser;
+import jalview.bin.argparser.BootstrapArgs;
 import jalview.ext.so.SequenceOntology;
 import jalview.gui.AlignFrame;
 import jalview.gui.Desktop;
 import jalview.gui.PromptUserConfig;
+import jalview.gui.QuitHandler;
+import jalview.gui.QuitHandler.QResponse;
 import jalview.io.AppletFormatAdapter;
 import jalview.io.BioJsHTMLOutput;
 import jalview.io.DataSourceType;
@@ -72,6 +89,7 @@ import jalview.schemes.ColourSchemeI;
 import jalview.schemes.ColourSchemeProperty;
 import jalview.util.ChannelProperties;
 import jalview.util.HttpUtils;
+import jalview.util.LaunchUtils;
 import jalview.util.MessageManager;
 import jalview.util.Platform;
 import jalview.ws.jws2.Jws2Discoverer;
@@ -96,6 +114,10 @@ public class Jalview
   static
   {
     Platform.getURLCommandArguments();
+    Platform.addJ2SDirectDatabaseCall("https://www.jalview.org");
+    Platform.addJ2SDirectDatabaseCall("http://www.jalview.org");
+    Platform.addJ2SDirectDatabaseCall("http://www.compbio.dundee.ac.uk");
+    Platform.addJ2SDirectDatabaseCall("https://www.compbio.dundee.ac.uk");
   }
 
   /*
@@ -105,6 +127,8 @@ public class Jalview
 
   private Desktop desktop;
 
+  protected Commands cmds;
+
   public static AlignFrame currentAlignFrame;
 
   static
@@ -263,12 +287,57 @@ public class Jalview
       System.setSecurityManager(null);
     }
 
+    // Move any new getdown-launcher-new.jar into place over old
+    // getdown-launcher.jar
+    String appdirString = System.getProperty("getdownappdir");
+    if (appdirString != null && appdirString.length() > 0)
+    {
+      final File appdir = new File(appdirString);
+      new Thread()
+      {
+        @Override
+        public void run()
+        {
+          LaunchUtil.upgradeGetdown(
+                  new File(appdir, "getdown-launcher-old.jar"),
+                  new File(appdir, "getdown-launcher.jar"),
+                  new File(appdir, "getdown-launcher-new.jar"));
+        }
+      }.start();
+    }
+
+    // get args needed before proper ArgParser
+    BootstrapArgs bootstrapArgs = BootstrapArgs.getBootstrapArgs(args);
+
+    if (!Platform.isJS())
+    {
+      // are we being --quiet ?
+      if (bootstrapArgs.contains(Arg.QUIET))
+      {
+        OutputStream devNull = new OutputStream()
+        {
+          @Override
+          public void write(int b)
+          {
+            // DO NOTHING
+          }
+        };
+        System.setOut(new PrintStream(devNull));
+        // redirecting stderr not working
+        if (bootstrapArgs.getList(Arg.QUIET).size() > 1)
+        {
+          System.setErr(new PrintStream(devNull));
+        }
+      }
+    }
+
     System.out
             .println("Java version: " + System.getProperty("java.version"));
     System.out.println("Java Home: " + System.getProperty("java.home"));
     System.out.println(System.getProperty("os.arch") + " "
             + System.getProperty("os.name") + " "
             + System.getProperty("os.version"));
+
     String val = System.getProperty("sys.install4jVersion");
     if (val != null)
     {
@@ -285,20 +354,88 @@ public class Jalview
       System.out.println("Launcher version: " + val);
     }
 
+    if (Platform.isLinux() && LaunchUtils.getJavaVersion() < 11)
+    {
+      System.setProperty("flatlaf.uiScale", "1");
+    }
+
+    // get bootstrap properties (mainly for the logger level)
+    Properties bootstrapProperties = Cache
+            .bootstrapProperties(bootstrapArgs.get(Arg.PROPS));
+
     // report Jalview version
     Cache.loadBuildProperties(true);
 
+    // old ArgsParser
     ArgsParser aparser = new ArgsParser(args);
+
+    // old
     boolean headless = false;
+    // new
+    boolean headlessArg = false;
+
+    try
+    {
+      String logLevel = bootstrapArgs.contains(Arg.DEBUG) ? "DEBUG" : null;
+      if (logLevel == null && !(bootstrapProperties == null))
+      {
+        logLevel = bootstrapProperties.getProperty(Cache.JALVIEWLOGLEVEL);
+      }
+      Console.initLogger(logLevel);
+    } catch (NoClassDefFoundError error)
+    {
+      error.printStackTrace();
+      String message = "\nEssential logging libraries not found."
+              + "\nUse: java -classpath \"$PATH_TO_LIB$/*:$PATH_TO_CLASSES$\" jalview.bin.Jalview";
+      Jalview.exit(message, 0);
+    }
+
+    // register SIGTERM listener
+    Runtime.getRuntime().addShutdownHook(new Thread()
+    {
+      public void run()
+      {
+        Console.debug("Running shutdown hook");
+        if (QuitHandler.gotQuitResponse() == QResponse.CANCEL_QUIT)
+        {
+          // Got to here by a SIGTERM signal.
+          // Note we will not actually cancel the quit from here -- it's too
+          // late -- but we can wait for saving files.
+          Console.debug("Checking for saving files");
+          QuitHandler.getQuitResponse(false);
+        }
+        else
+        {
+          Console.debug("Nothing more to do");
+        }
+        Console.debug("Exiting, bye!");
+        // shutdownHook cannot be cancelled, JVM will now halt
+      }
+    });
 
-    String usrPropsFile = aparser.getValue("props");
-    Cache.loadProperties(usrPropsFile); // must do this before
+    String usrPropsFile = bootstrapArgs.contains(Arg.PROPS)
+            ? bootstrapArgs.get(Arg.PROPS)
+            : aparser.getValue("props");
     if (usrPropsFile != null)
     {
+      Cache.loadProperties(usrPropsFile);
       System.out.println(
               "CMD [-props " + usrPropsFile + "] executed successfully!");
     }
 
+    // new ArgParser
+    ArgParser argparser;
+    // --argfile=... -- OVERRIDES ALL NON-BOOTSTRAP ARGS
+    if (bootstrapArgs.contains(Arg.ARGFILE))
+    {
+      argparser = ArgParser
+              .parseArgFiles(bootstrapArgs.getList(Arg.ARGFILE));
+    }
+    else
+    {
+      argparser = new ArgParser(args);
+    }
+
     if (!Platform.isJS())
     /**
      * Java only
@@ -306,19 +443,31 @@ public class Jalview
      * @j2sIgnore
      */
     {
-      if (aparser.contains("help") || aparser.contains("h"))
+      if (aparser.contains("help") || aparser.contains("h")
+              || argparser.getBool(Arg.HELP))
       {
         showUsage();
-        System.exit(0);
+        Jalview.exit(null, 0);
+      }
+
+      if (bootstrapArgs.contains(Arg.HEADLESS))
+      {
+        System.setProperty("java.awt.headless", "true");
+        // new
+        headlessArg = argparser.getBool(Arg.HEADLESS);
       }
       if (aparser.contains("nodisplay") || aparser.contains("nogui")
               || aparser.contains("headless"))
       {
         System.setProperty("java.awt.headless", "true");
+        // old
         headless = true;
       }
       // anything else!
 
+      // allow https handshakes to download intermediate certs if necessary
+      System.setProperty("com.sun.security.enableAIAcaIssuers", "true");
+
       final String jabawsUrl = aparser.getValue("jabaws");
       if (jabawsUrl != null)
       {
@@ -363,20 +512,23 @@ public class Jalview
     }
     System.setProperty("http.agent",
             "Jalview Desktop/" + Cache.getDefault("VERSION", "Unknown"));
+
     try
     {
-      Cache.initLogger();
-    } catch (NoClassDefFoundError error)
+      Console.initLogger();
+    } catch (
+
+    NoClassDefFoundError error)
     {
       error.printStackTrace();
-      System.out.println("\nEssential logging libraries not found."
-              + "\nUse: java -classpath \"$PATH_TO_LIB$/*:$PATH_TO_CLASSES$\" jalview.bin.Jalview");
-      System.exit(0);
+      String message = "\nEssential logging libraries not found."
+              + "\nUse: java -classpath \"$PATH_TO_LIB$/*:$PATH_TO_CLASSES$\" jalview.bin.Jalview";
+      Jalview.exit(message, 0);
     }
-
     desktop = null;
 
-    setLookAndFeel();
+    if (!(headless || headlessArg))
+      setLookAndFeel();
 
     /*
      * configure 'full' SO model if preferences say to, else use the default (full SO)
@@ -388,7 +540,7 @@ public class Jalview
       SequenceOntologyFactory.setInstance(new SequenceOntology());
     }
 
-    if (!headless)
+    if (!(headless || headlessArg))
     {
       Desktop.nosplash = aparser.contains("nosplash");
       desktop = new Desktop();
@@ -399,13 +551,13 @@ public class Jalview
         JalviewTaskbar.setTaskbar(this);
       } catch (Exception e)
       {
-        Cache.log.info("Cannot set Taskbar");
-        Cache.log.error(e.getMessage());
+        Console.info("Cannot set Taskbar");
+        Console.error(e.getMessage());
         // e.printStackTrace();
       } catch (Throwable t)
       {
-        Cache.log.info("Cannot set Taskbar");
-        Cache.log.error(t.getMessage());
+        Console.info("Cannot set Taskbar");
+        Console.error(t.getMessage());
         // t.printStackTrace();
       }
 
@@ -421,6 +573,35 @@ public class Jalview
        * @j2sIgnore
        */
       {
+
+        /**
+         * Check to see that the JVM version being run is suitable for the Java
+         * version this Jalview was compiled for. Popup a warning if not.
+         */
+        if (!LaunchUtils.checkJavaVersion())
+        {
+          Console.warn("The Java version being used (Java "
+                  + LaunchUtils.getJavaVersion()
+                  + ") may lead to problems. This installation of Jalview should be used with Java "
+                  + LaunchUtils.getJavaCompileVersion() + ".");
+
+          if (!LaunchUtils
+                  .getBooleanUserPreference("IGNORE_JVM_WARNING_POPUP"))
+          {
+            Object[] options = {
+                MessageManager.getString("label.continue") };
+            JOptionPane.showOptionDialog(null,
+                    MessageManager.formatMessage(
+                            "warning.wrong_jvm_version_message",
+                            LaunchUtils.getJavaVersion(),
+                            LaunchUtils.getJavaCompileVersion()),
+                    MessageManager
+                            .getString("warning.wrong_jvm_version_title"),
+                    JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE,
+                    null, options, options[0]);
+          }
+        }
+
         if (!aparser.contains("nowebservicediscovery"))
         {
           desktop.startServiceDiscovery();
@@ -441,7 +622,7 @@ public class Jalview
           {
             // Start the desktop questionnaire prompter with the specified
             // questionnaire
-            Cache.log.debug("Starting questionnaire url at " + url);
+            Console.debug("Starting questionnaire url at " + url);
             desktop.checkForQuestionnaire(url);
             System.out.println("CMD questionnaire[-" + url
                     + "] executed successfully!");
@@ -456,7 +637,7 @@ public class Jalview
               // "http://anaplog.compbio.dundee.ac.uk/cgi-bin/questionnaire.pl";
               // //
               String defurl = "https://www.jalview.org/cgi-bin/questionnaire.pl";
-              Cache.log.debug(
+              Console.debug(
                       "Starting questionnaire with default url: " + defurl);
               desktop.checkForQuestionnaire(defurl);
             }
@@ -468,37 +649,57 @@ public class Jalview
                   .println("CMD [-noquestionnaire] executed successfully!");
         }
 
-        if (!aparser.contains("nonews"))
+        if ((!aparser.contains("nonews")
+                && Cache.getProperty("NONEWS") == null
+                && !"false".equals(bootstrapArgs.get(Arg.NEWS)))
+                || "true".equals(bootstrapArgs.get(Arg.NEWS)))
         {
           desktop.checkForNews();
         }
 
-        BioJsHTMLOutput.updateBioJS();
+        if (!aparser.contains("nohtmltemplates")
+                && Cache.getProperty("NOHTMLTEMPLATES") == null)
+        {
+          BioJsHTMLOutput.updateBioJS();
+        }
       }
     }
-
-    // Move any new getdown-launcher-new.jar into place over old
-    // getdown-launcher.jar
-    String appdirString = System.getProperty("getdownappdir");
-    if (appdirString != null && appdirString.length() > 0)
+    // Run Commands from cli
+    cmds = new Commands(argparser, headlessArg);
+    boolean commandsSuccess = cmds.argsWereParsed();
+    if (commandsSuccess)
     {
-      final File appdir = new File(appdirString);
-      new Thread()
+      if (headlessArg)
       {
-        @Override
-        public void run()
-        {
-          LaunchUtil.upgradeGetdown(
-                  new File(appdir, "getdown-launcher-old.jar"),
-                  new File(appdir, "getdown-launcher.jar"),
-                  new File(appdir, "getdown-launcher-new.jar"));
-        }
-      }.start();
+        Jalview.exit("Successfully completed commands in headless mode", 0);
+      }
+      Console.info("Successfully completed commands");
+    }
+    else
+    {
+      if (headlessArg)
+      {
+        Jalview.exit("Error when running Commands in headless mode", 1);
+      }
+      Console.warn("Error when running commands");
+    }
+
+    // Check if JVM and compile version might cause problems and log if it
+    // might.
+    if (headless && !Platform.isJS() && !LaunchUtils.checkJavaVersion())
+    {
+      Console.warn("The Java version being used (Java "
+              + LaunchUtils.getJavaVersion()
+              + ") may lead to problems. This installation of Jalview should be used with Java "
+              + LaunchUtils.getJavaCompileVersion() + ".");
     }
 
     String file = null, data = null;
+
     FileFormatI format = null;
+
     DataSourceType protocol = null;
+
     FileLoader fileLoader = new FileLoader(!headless);
 
     String groovyscript = null; // script to execute after all loading is
@@ -507,11 +708,11 @@ public class Jalview
     groovyscript = aparser.getValue("groovy", true);
     file = aparser.getValue("open", true);
 
-    if (file == null && desktop == null)
+    if (file == null && desktop == null && !commandsSuccess)
     {
-      System.out.println("No files to open!");
-      System.exit(1);
+      Jalview.exit("No files to open!", 1);
     }
+
     long progress = -1;
     // Finally, deal with the remaining input data.
     if (file != null)
@@ -536,11 +737,12 @@ public class Jalview
         {
           if (!(new File(file)).exists())
           {
-            System.out.println("Can't find " + file);
             if (headless)
             {
-              System.exit(1);
+              Jalview.exit(
+                      "Can't find file '" + file + "' in headless mode", 1);
             }
+            Console.warn("Can't find file'" + file + "'");
           }
         }
       }
@@ -575,7 +777,7 @@ public class Jalview
           if (cs != null)
           {
             System.out.println(
-                    "CMD [-color " + data + "] executed successfully!");
+                    "CMD [-colour " + data + "] executed successfully!");
           }
           af.changeColour(cs);
         }
@@ -771,25 +973,28 @@ public class Jalview
         }
       }
     }
+
     AlignFrame startUpAlframe = null;
     // We'll only open the default file if the desktop is visible.
     // And the user
     // ////////////////////
 
     if (!Platform.isJS() && !headless && file == null
-            && Cache.getDefault("SHOW_STARTUP_FILE", true))
+            && Cache.getDefault("SHOW_STARTUP_FILE", true)
+            && !cmds.commandArgsProvided())
+    // don't open the startup file if command line args have been processed
+    // (&& !Commands.commandArgsProvided())
     /**
      * Java only
      * 
      * @j2sIgnore
      */
     {
-      file = jalview.bin.Cache.getDefault("STARTUP_FILE",
-              jalview.bin.Cache.getDefault("www.jalview.org",
-                      "https://www.jalview.org")
+      file = Cache.getDefault("STARTUP_FILE",
+              Cache.getDefault("www.jalview.org", "https://www.jalview.org")
                       + "/examples/exampleFile_2_7.jvp");
-      if (file.equals(
-              "http://www.jalview.org/examples/exampleFile_2_3.jar") || file.equals(
+      if (file.equals("http://www.jalview.org/examples/exampleFile_2_3.jar")
+              || file.equals(
                       "http://www.jalview.org/examples/exampleFile_2_7.jar"))
       {
         file.replace("http:", "https:");
@@ -819,6 +1024,10 @@ public class Jalview
 
       startUpAlframe = fileLoader.LoadFileWaitTillLoaded(file, protocol,
               format);
+      // don't ask to save when quitting if only the startup file has been
+      // opened
+      Console.debug("Resetting up-to-date flag for startup file");
+      startUpAlframe.getViewport().setSavedUpToDate(true);
       // extract groovy arguments before anything else.
     }
 
@@ -872,76 +1081,62 @@ public class Jalview
       lafSet = setCrossPlatformLookAndFeel();
       if (!lafSet)
       {
-        Cache.log.error("Could not set requested laf=" + laf);
+        Console.error("Could not set requested laf=" + laf);
       }
       break;
     case "system":
       lafSet = setSystemLookAndFeel();
       if (!lafSet)
       {
-        Cache.log.error("Could not set requested laf=" + laf);
+        Console.error("Could not set requested laf=" + laf);
       }
       break;
     case "gtk":
       lafSet = setGtkLookAndFeel();
       if (!lafSet)
       {
-        Cache.log.error("Could not set requested laf=" + laf);
+        Console.error("Could not set requested laf=" + laf);
       }
       break;
     case "metal":
       lafSet = setMetalLookAndFeel();
       if (!lafSet)
       {
-        Cache.log.error("Could not set requested laf=" + laf);
+        Console.error("Could not set requested laf=" + laf);
       }
       break;
     case "nimbus":
       lafSet = setNimbusLookAndFeel();
       if (!lafSet)
       {
-        Cache.log.error("Could not set requested laf=" + laf);
+        Console.error("Could not set requested laf=" + laf);
       }
       break;
     case "flat":
       lafSet = setFlatLookAndFeel();
       if (!lafSet)
       {
-        Cache.log.error("Could not set requested laf=" + laf);
-      }
-      break;
-    case "quaqua":
-      lafSet = setQuaquaLookAndFeel();
-      if (!lafSet)
-      {
-        Cache.log.error("Could not set requested laf=" + laf);
-      }
-      break;
-    case "vaqua":
-      lafSet = setVaquaLookAndFeel();
-      if (!lafSet)
-      {
-        Cache.log.error("Could not set requested laf=" + laf);
+        Console.error("Could not set requested laf=" + laf);
       }
       break;
     case "mac":
       lafSet = setMacLookAndFeel();
       if (!lafSet)
       {
-        Cache.log.error("Could not set requested laf=" + laf);
+        Console.error("Could not set requested laf=" + laf);
       }
       break;
     case "none":
       break;
     default:
-      Cache.log.error("Requested laf=" + laf + " not implemented");
+      Console.error("Requested laf=" + laf + " not implemented");
     }
     if (!lafSet)
     {
       setSystemLookAndFeel();
       if (Platform.isLinux())
       {
-        setFlatLookAndFeel();
+        setLinuxLookAndFeel();
       }
       if (Platform.isMac())
       {
@@ -960,9 +1155,9 @@ public class Jalview
       set = true;
     } catch (Exception ex)
     {
-      Cache.log.error("Unexpected Look and Feel Exception");
-      Cache.log.error(ex.getMessage());
-      Cache.log.debug(Cache.getStackTraceString(ex));
+      Console.error("Unexpected Look and Feel Exception");
+      Console.error(ex.getMessage());
+      Console.debug(Cache.getStackTraceString(ex));
     }
     return set;
   }
@@ -976,9 +1171,9 @@ public class Jalview
       set = true;
     } catch (Exception ex)
     {
-      Cache.log.error("Unexpected Look and Feel Exception");
-      Cache.log.error(ex.getMessage());
-      Cache.log.debug(Cache.getStackTraceString(ex));
+      Console.error("Unexpected Look and Feel Exception");
+      Console.error(ex.getMessage());
+      Console.debug(Cache.getStackTraceString(ex));
     }
     return set;
   }
@@ -994,7 +1189,8 @@ public class Jalview
         if (info.getName() != null && nameStartsWith
                 ? info.getName().toLowerCase(Locale.ROOT)
                         .startsWith(name.toLowerCase(Locale.ROOT))
-                : info.getName().toLowerCase(Locale.ROOT).equals(name.toLowerCase(Locale.ROOT)))
+                : info.getName().toLowerCase(Locale.ROOT)
+                        .equals(name.toLowerCase(Locale.ROOT)))
         {
           className = info.getClassName();
           break;
@@ -1004,9 +1200,9 @@ public class Jalview
       set = true;
     } catch (Exception ex)
     {
-      Cache.log.error("Unexpected Look and Feel Exception");
-      Cache.log.error(ex.getMessage());
-      Cache.log.debug(Cache.getStackTraceString(ex));
+      Console.error("Unexpected Look and Feel Exception");
+      Console.error(ex.getMessage());
+      Console.debug(Cache.getStackTraceString(ex));
     }
     return set;
   }
@@ -1031,35 +1227,113 @@ public class Jalview
 
   private static boolean setFlatLookAndFeel()
   {
-    boolean set = setSpecificLookAndFeel("flatlaf light",
-            "com.formdev.flatlaf.FlatLightLaf", false);
+    boolean set = false;
+    if (SystemInfo.isMacOS)
+    {
+      try
+      {
+        UIManager.setLookAndFeel(
+                "com.formdev.flatlaf.themes.FlatMacLightLaf");
+        set = true;
+        Console.debug("Using FlatMacLightLaf");
+      } catch (ClassNotFoundException | InstantiationException
+              | IllegalAccessException | UnsupportedLookAndFeelException e)
+      {
+        Console.debug("Exception loading FlatLightLaf", e);
+      }
+      System.setProperty("apple.laf.useScreenMenuBar", "true");
+      System.setProperty("apple.awt.application.name",
+              ChannelProperties.getProperty("app_name"));
+      System.setProperty("apple.awt.application.appearance", "system");
+      if (SystemInfo.isMacFullWindowContentSupported
+              && Desktop.desktop != null)
+      {
+        Console.debug("Setting transparent title bar");
+        Desktop.desktop.getRootPane()
+                .putClientProperty("apple.awt.fullWindowContent", true);
+        Desktop.desktop.getRootPane()
+                .putClientProperty("apple.awt.transparentTitleBar", true);
+        Desktop.desktop.getRootPane()
+                .putClientProperty("apple.awt.fullscreenable", true);
+      }
+      SwingUtilities.invokeLater(() -> {
+        FlatMacLightLaf.setup();
+      });
+      Console.debug("Using FlatMacLightLaf");
+      set = true;
+    }
+    if (!set)
+    {
+      try
+      {
+        UIManager.setLookAndFeel("com.formdev.flatlaf.FlatLightLaf");
+        set = true;
+        Console.debug("Using FlatLightLaf");
+      } catch (ClassNotFoundException | InstantiationException
+              | IllegalAccessException | UnsupportedLookAndFeelException e)
+      {
+        Console.debug("Exception loading FlatLightLaf", e);
+      }
+      // Windows specific properties here
+      SwingUtilities.invokeLater(() -> {
+        FlatLightLaf.setup();
+      });
+      Console.debug("Using FlatLightLaf");
+      set = true;
+    }
+    else if (SystemInfo.isLinux)
+    {
+      try
+      {
+        UIManager.setLookAndFeel("com.formdev.flatlaf.FlatLightLaf");
+        set = true;
+        Console.debug("Using FlatLightLaf");
+      } catch (ClassNotFoundException | InstantiationException
+              | IllegalAccessException | UnsupportedLookAndFeelException e)
+      {
+        Console.debug("Exception loading FlatLightLaf", e);
+      }
+      // enable custom window decorations
+      JFrame.setDefaultLookAndFeelDecorated(true);
+      JDialog.setDefaultLookAndFeelDecorated(true);
+      SwingUtilities.invokeLater(() -> {
+        FlatLightLaf.setup();
+      });
+      Console.debug("Using FlatLightLaf");
+      set = true;
+    }
+
+    if (!set)
+    {
+      try
+      {
+        UIManager.setLookAndFeel("com.formdev.flatlaf.FlatLightLaf");
+        set = true;
+        Console.debug("Using FlatLightLaf");
+      } catch (ClassNotFoundException | InstantiationException
+              | IllegalAccessException | UnsupportedLookAndFeelException e)
+      {
+        Console.debug("Exception loading FlatLightLaf", e);
+      }
+    }
+
     if (set)
     {
+      UIManager.put("TabbedPane.tabType", "card");
       UIManager.put("TabbedPane.showTabSeparators", true);
+      UIManager.put("TabbedPane.showContentSeparator", true);
       UIManager.put("TabbedPane.tabSeparatorsFullHeight", true);
       UIManager.put("TabbedPane.tabsOverlapBorder", true);
-      //UIManager.put("TabbedPane.hasFullBorder", true);
+      UIManager.put("TabbedPane.hasFullBorder", true);
       UIManager.put("TabbedPane.tabLayoutPolicy", "scroll");
       UIManager.put("TabbedPane.scrollButtonsPolicy", "asNeeded");
       UIManager.put("TabbedPane.smoothScrolling", true);
       UIManager.put("TabbedPane.tabWidthMode", "compact");
       UIManager.put("TabbedPane.selectedBackground", Color.white);
     }
-    return set;
-  }
-
-  private static boolean setQuaquaLookAndFeel()
-  {
-    return setSpecificLookAndFeel("quaqua",
-            ch.randelshofer.quaqua.QuaquaManager.getLookAndFeel().getClass()
-                    .getName(),
-            false);
-  }
 
-  private static boolean setVaquaLookAndFeel()
-  {
-    return setSpecificLookAndFeel("vaqua",
-            "org.violetlib.aqua.AquaLookAndFeel", false);
+    Desktop.setLiveDragMode(Cache.getDefault("FLAT_LIVE_DRAG_MODE", true));
+    return set;
   }
 
   private static boolean setMacLookAndFeel()
@@ -1068,12 +1342,28 @@ public class Jalview
     System.setProperty("com.apple.mrj.application.apple.menu.about.name",
             ChannelProperties.getProperty("app_name"));
     System.setProperty("apple.laf.useScreenMenuBar", "true");
+    /*
+     * broken native LAFs on (ARM?) macbooks
     set = setQuaquaLookAndFeel();
     if ((!set) || !UIManager.getLookAndFeel().getClass().toString()
             .toLowerCase(Locale.ROOT).contains("quaqua"))
     {
       set = setVaquaLookAndFeel();
     }
+     */
+    set = setFlatLookAndFeel();
+    return set;
+  }
+
+  private static boolean setLinuxLookAndFeel()
+  {
+    boolean set = false;
+    set = setFlatLookAndFeel();
+    if (!set)
+      set = setMetalLookAndFeel();
+    // avoid GtkLookAndFeel -- not good results especially on HiDPI
+    if (!set)
+      set = setNimbusLookAndFeel();
     return set;
   }
 
@@ -1135,17 +1425,17 @@ public class Jalview
               @Override
               public void run()
               {
-                Cache.log.debug(
+                Console.debug(
                         "Initialising googletracker for usage stats.");
                 Cache.initGoogleTracker();
-                Cache.log.debug("Tracking enabled.");
+                Console.debug("Tracking enabled.");
               }
             }, new Runnable()
             {
               @Override
               public void run()
               {
-                Cache.log.debug("Not enabling Google Tracking.");
+                Console.debug("Not enabling Google Tracking.");
               }
             }, null, true);
     desktop.addDialogThread(prompter);
@@ -1287,19 +1577,12 @@ public class Jalview
   }
 
   /**
-   * Quit method delegates to Desktop.quit - unless running in headless mode
-   * when it just ends the JVM
+   * jalview.bin.Jalview.quit() will just run the non-GUI shutdownHook and exit
    */
   public void quit()
   {
-    if (desktop != null)
-    {
-      desktop.quit();
-    }
-    else
-    {
-      System.exit(0);
-    }
+    // System.exit will run the shutdownHook first
+    Jalview.exit("Quitting now. Bye!", 0);
   }
 
   public static AlignFrame getCurrentAlignFrame()
@@ -1311,4 +1594,21 @@ public class Jalview
   {
     Jalview.currentAlignFrame = currentAlignFrame;
   }
+
+  protected Commands getCommands()
+  {
+    return cmds;
+  }
+
+  public static void exit(String message, int exitcode)
+  {
+    Console.debug("Using Jalview.exit");
+    if (message != null)
+      if (exitcode == 0)
+        Console.info(message);
+      else
+        Console.error(message);
+    if (exitcode > -1)
+      System.exit(exitcode);
+  }
 }