Add action bar button for reconnection.

Change-Id: I8729dcd2b179b7301ae85528a615195e907cf443

android/sdremote/res/layout/fragment_computer_connection.xml

@@ -7,7 +7,7 @@
               android:layout_height="match_parent">
 
     <ProgressBar
-        android:id="@android:id/progress"
+        android:id="@+id/progress_bar"
         style="?android:progressBarStyleLarge"
         android:layout_gravity="center"
         android:layout_width="wrap_content"

android/sdremote/res/menu/menu_action_bar_computer_connection.xml

+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:id="@+id/menu_reconnect"
+        android:title="@string/menu_reconnect"
+        android:icon="@drawable/ic_action_reconnect"
+        android:showAsAction="always"/>
+
+</menu>
\ No newline at end of file

android/sdremote/res/values/strings.xml

@@ -72,6 +72,7 @@
     <string name="title_connection">Connection</string>
 
     <string name="menu_licenses">Open source licenses</string>
+    <string name="menu_reconnect">Reconnect</string>
 
     <string name="message_impress_pin_validation">Go to “Slide Show → Impress Remote” in LibreOffice Impress and enter the code.</string>
     <string name="message_connection_failed_title">Connection failed</string>

android/sdremote/src/org/libreoffice/impressremote/ComputerConnectionFragment.java

@@ -13,10 +13,14 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.LinearLayout;
+import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.ViewAnimator;
 
 import com.actionbarsherlock.app.SherlockFragment;
+import com.actionbarsherlock.view.Menu;
+import com.actionbarsherlock.view.MenuInflater;
+import com.actionbarsherlock.view.MenuItem;
 import org.libreoffice.impressremote.communication.CommunicationService;
 import org.libreoffice.impressremote.communication.Server;
 
@@ -47,6 +51,12 @@ public class ComputerConnectionFragment extends SherlockFragment implements Serv
         super.onCreate(aSavedInstance);
 
         mComputer = getArguments().getParcelable("COMPUTER");
+
+        setUpActionBarMenu();
+    }
+
+    private void setUpActionBarMenu() {
+        setHasOptionsMenu(true);
     }
 
     @Override
@@ -73,6 +83,14 @@ public class ComputerConnectionFragment extends SherlockFragment implements Serv
 
         mCommunicationService = aServiceBinder.getService();
 
+        connectToComputer();
+    }
+
+    private void connectToComputer() {
+        if (!isServiceBound()) {
+            return;
+        }
+
         mCommunicationService.connectTo(mComputer);
     }
 
@@ -188,6 +206,31 @@ public class ComputerConnectionFragment extends SherlockFragment implements Serv
         aViewAnimator.setDisplayedChild(aViewAnimator.indexOfChild(aMessageLayout));
     }
 
+    @Override
+    public void onCreateOptionsMenu(Menu aMenu, MenuInflater aMenuInflater) {
+        aMenuInflater.inflate(R.menu.menu_action_bar_computer_connection, aMenu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem aMenuItem) {
+        switch (aMenuItem.getItemId()) {
+            case R.id.menu_reconnect:
+                showProgressBar();
+                connectToComputer();
+                return true;
+
+            default:
+                return super.onOptionsItemSelected(aMenuItem);
+        }
+    }
+
+    private void showProgressBar() {
+        ViewAnimator aViewAnimator = (ViewAnimator) getView().findViewById(R.id.view_animator);
+        ProgressBar aProgressBar = (ProgressBar) getView().findViewById(R.id.progress_bar);
+
+        aViewAnimator.setDisplayedChild(aViewAnimator.indexOfChild(aProgressBar));
+    }
+
     @Override
     public void onPause() {
         super.onPause();