Change slide show operations related to its starting.

Do not start a slide show when it is already started.

Change-Id: I2cd1df48c07f60ddedb63f93973a0bda029bbd3f

android/sdremote/src/org/libreoffice/impressremote/activity/SlideShowActivity.java

@@ -118,6 +118,11 @@ public class SlideShowActivity extends SherlockFragmentActivity implements Servi
     }
 
     private void startSlideShow() {
+        if (mCommunicationService.getSlideShow().isRunning()) {
+            setUpSlideShowInformation();
+            return;
+        }
+
         mCommunicationService.getTransmitter().startPresentation();
     }
 

android/sdremote/src/org/libreoffice/impressremote/communication/CommunicationService.java

@@ -186,6 +186,7 @@ public class CommunicationService extends Service implements Runnable, MessagesL
     public void onSlideShowStart(int aSlidesCount, int aCurrentSlideIndex) {
         mSlideShow = new SlideShow(mTimer);
         mSlideShow.setSlidesCount(aSlidesCount);
+        mSlideShow.setRunning(true);
 
         Intent aIntent = Intents.buildSlideShowRunningIntent();
         LocalBroadcastManager.getInstance(this).sendBroadcast(aIntent);

android/sdremote/src/org/libreoffice/impressremote/communication/SlideShow.java

@@ -12,6 +12,8 @@ import android.util.SparseArray;
 
 
 public class SlideShow {
+    private boolean mRunning;
+
     private int mSlidesCount;
     private int mCurrentSlideIndex;
 
@@ -21,13 +23,23 @@ public class SlideShow {
     private final Timer mTimer;
 
     public SlideShow(Timer aTimer) {
-        this.mSlidesCount = 0;
-        this.mCurrentSlideIndex = 0;
+        mRunning = false;
 
-        this.mSlidePreviewsBytes = new SparseArray<byte[]>();
-        this.mSlideNotes = new SparseArray<String>();
+        mSlidesCount = 0;
+        mCurrentSlideIndex = 0;
 
-        this.mTimer = aTimer;
+        mSlidePreviewsBytes = new SparseArray<byte[]>();
+        mSlideNotes = new SparseArray<String>();
+
+        mTimer = aTimer;
+    }
+
+    public void setRunning(boolean aRunning) {
+        mRunning = aRunning;
+    }
+
+    public boolean isRunning() {
+        return mRunning;
     }
 
     public void setSlidesCount(int aSlidesCount) {

android/sdremote/src/org/libreoffice/impressremote/fragment/SlidesPagerFragment.java

@@ -132,7 +132,9 @@ public class SlidesPagerFragment extends SherlockFragment implements ServiceConn
 
     @Override
     public void onPageSelected(int aPosition) {
-        mCommunicationService.getTransmitter().setCurrentSlide(aPosition);
+        if (mCommunicationService.getSlideShow().getCurrentSlideIndex() != aPosition) {
+            mCommunicationService.getTransmitter().setCurrentSlide(aPosition);
+        }
 
         setUpSlideNotes(aPosition);
     }