Some groundwork for shift+tab cycling backwards in tab completers

issue 643

Change-Id: I820293095b11f8e46be29983ee9e9b1d7fd7ec5b
Reviewed-on: http://gerrit.dmdirc.com/593
Automatic-Compile: Gregory Holmes <greg@dmdirc.com>
Reviewed-by: Shane Mc Cormack <shane@dmdirc.com>

src/com/dmdirc/addons/ui_swing/components/SwingInputHandler.java

                     @Override
                     protected Object doInBackground() throws Exception {
                         localTarget.setEditable(false);
-                        doTabCompletion();
+                        doTabCompletion(false);
+                        return null;
+                    }
+
+                    /** {@inheritDoc} */
+                    @Override
+                    protected void done() {
+                        localTarget.setEditable(true);
+                    }
+                }.execute();
+            }
+        });
+        localTarget.getActionMap().put("insert-shift-tab", new AbstractAction() {
+
+            /**
+             * A version number for this class. It should be changed whenever the class
+             * structure is changed (or anything else that would prevent serialized
+             * objects being unserialized with the new class).
+             */
+            private static final long serialVersionUID = 1;
+
+            /** {@inheritDoc} */
+            @Override
+            public void actionPerformed(final ActionEvent e) {
+                new LoggingSwingWorker() {
+
+                    /** {@inheritDoc} */
+                    @Override
+                    protected Object doInBackground() throws Exception {
+                        localTarget.setEditable(false);
+                        doTabCompletion(true);
                         return null;
                     }
 
         });
         localTarget.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).
                 put(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0), "insert-tab");
+        localTarget.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).
+                put(KeyStroke.getKeyStroke(KeyEvent.VK_TAB,
+                KeyEvent.SHIFT_MASK), "insert-shift-tab");
     }
 
     /** {@inheritDoc} */

src/com/dmdirc/addons/ui_swing/dialogs/NewServerDialog.java

                     }
                 }.execute();
             } else {
-                final com.dmdirc.ui.interfaces.Window active = mainFrame.getActiveFrame();
-                final Server server = ServerManager.getServerManager().getServerFromFrame(active);
+                final Server server = mainFrame.getActiveFrame().getContainer().getServer();
 
                 new LoggingSwingWorker() {
 
+                    /** {@inheritDoc} */
                     @Override
                     protected Object doInBackground() throws Exception {
                         if (server == null) {