Merge branch 'feature/JAL-3187linkedFeatures' into feature/JAL-3251biotypedMappings

[jalview.git] / src / jalview / gui / APQHandlers.java

diff --git a/src/jalview/gui/APQHandlers.java b/src/jalview/gui/APQHandlers.java
new file mode 100644 (file)
index 0000000..05f5e08
--- /dev/null
+++ b/src/jalview/gui/APQHandlers.java
@@ -0,0 +1,151 @@
+package jalview.gui;
+
+import jalview.util.MessageManager;
+import jalview.util.Platform;
+
+import java.awt.Desktop;
+import java.awt.desktop.AboutEvent;
+import java.awt.desktop.AboutHandler;
+import java.awt.desktop.PreferencesEvent;
+import java.awt.desktop.PreferencesHandler;
+import java.awt.desktop.QuitEvent;
+import java.awt.desktop.QuitHandler;
+import java.awt.desktop.QuitResponse;
+import java.awt.desktop.QuitStrategy;
+
+import javax.swing.JOptionPane;
+
+public class APQHandlers
+{
+  private static boolean setAPQHandlers = false;
+
+  public APQHandlers() {
+  }
+
+  protected static boolean setAPQHandlers(jalview.gui.Desktop jalviewDesktop)
+  {
+    // flagging this test to avoid unnecessary reflection
+    if (!setAPQHandlers)
+    {
+      // see if the Quit, About and Preferences handlers are available
+      Class desktopClass = Desktop.class;
+      Desktop hdesktop = Desktop.getDesktop();
+
+      try
+      {
+        Float specversion = Float.parseFloat(
+                System.getProperty("java.specification.version"));
+
+        if (specversion >= 9)
+        {
+          if (Platform.isAMac())
+          {
+            if (desktopClass.getDeclaredMethod("setAboutHandler",
+                    new Class[]
+                    { AboutHandler.class }) != null)
+            {
+
+              hdesktop.setAboutHandler(new AboutHandler()
+              {
+                @Override
+                public void handleAbout(AboutEvent e)
+                {
+                  jalviewDesktop.aboutMenuItem_actionPerformed(null);
+                }
+              });
+
+            }
+
+            if (desktopClass.getDeclaredMethod("setPreferencesHandler",
+                    new Class[]
+                    { PreferencesHandler.class }) != null)
+            {
+
+              hdesktop.setPreferencesHandler(
+                      new PreferencesHandler()
+              {
+                        @Override
+                        public void handlePreferences(
+                                PreferencesEvent e)
+                        {
+                          jalviewDesktop.preferences_actionPerformed(null);
+                        }
+                      });
+
+            }
+
+            if (desktopClass.getDeclaredMethod("setQuitHandler",
+                    new Class[]
+                    { QuitHandler.class }) != null)
+            {
+
+              hdesktop.setQuitHandler(new QuitHandler()
+              {
+                @Override
+                public void handleQuitRequestWith(
+                        QuitEvent e, QuitResponse r)
+                {
+                  boolean confirmQuit = jalview.bin.Cache
+                          .getDefault(
+                                  jalview.gui.Desktop.CONFIRM_KEYBOARD_QUIT,
+                                  true);
+                  int n;
+                  if (confirmQuit)
+                  {
+                    n = JOptionPane.showConfirmDialog(null,
+                            MessageManager.getString("label.quit_jalview"),
+                            MessageManager.getString("action.quit"),
+                            JOptionPane.OK_CANCEL_OPTION,
+                            JOptionPane.PLAIN_MESSAGE, null);
+                  }
+                  else
+                  {
+                    n = JOptionPane.OK_OPTION;
+                  }
+                  if (n == JOptionPane.OK_OPTION)
+                  {
+                    System.out.println("Shortcut Quit confirmed by user");
+                    jalviewDesktop.quit();
+                    r.performQuit(); // probably won't reach this line, but just
+                                     // in
+                                     // case
+                  }
+                  else
+                  {
+                    r.cancelQuit();
+                    System.out.println("Shortcut Quit cancelled by user");
+                  }
+                }
+              });
+              hdesktop.setQuitStrategy(
+                      QuitStrategy.CLOSE_ALL_WINDOWS);
+
+            }
+          }
+          setAPQHandlers = true;
+        }
+        else
+        {
+          System.out.println(
+                  "Not going to try setting APQ Handlers as java.spec.version is "
+                          + specversion);
+        }
+
+      } catch (Exception e)
+      {
+        System.out.println(
+                "Exception when looking for About, Preferences, Quit Handlers");
+        // e.printStackTrace();
+      } catch (Throwable t)
+      {
+        System.out.println(
+                "Throwable when looking for About, Preferences, Quit Handlers");
+        // t.printStackTrace();
+      }
+
+    }
+    
+    return setAPQHandlers;
+  }
+
+}