dispatch backPressed to the right-most fragment before, if still

unhandled, letting super interpret it as a pop-fragment action.

xwords4/android/XWords4/src/org/eehouse/android/xw4/DelegateBase.java

@@ -87,7 +87,7 @@ public class DelegateBase implements DlgClickNotify,
     protected void onStop() {}
     protected void onDestroy() {}
     protected void onWindowFocusChanged( boolean hasFocus ) {}
-    protected boolean onBackPressed() { return false; }
+    protected boolean handleBackPressed() { return false; }
     public void orientationChanged() {}
     
     protected void requestWindowFeature( int feature ) {}

xwords4/android/XWords4/src/org/eehouse/android/xw4/DictsDelegate.java

@@ -571,7 +571,8 @@ public class DictsDelegate extends ListDelegateBase
         }
     }
 
-    protected boolean onBackPressed() 
+    @Override
+    protected boolean handleBackPressed()
     {
         boolean handled = 0 < m_selDicts.size();
         if ( handled ) {

xwords4/android/XWords4/src/org/eehouse/android/xw4/DualpaneDelegate.java

@@ -59,4 +59,13 @@ public class DualpaneDelegate extends DelegateBase {
         DbgUtils.logf( "DualpaneDelegate.handleNewIntent() => %b", handled );
         return handled;
     }
+
+    @Override
+    protected boolean handleBackPressed()
+    {
+        MainActivity main = (MainActivity)m_activity;
+        boolean handled = main.dispatchBackPressed();
+        DbgUtils.logf( "DualpaneDelegate.handleBackPressed() => %b", handled );
+        return handled;
+    }
 }

xwords4/android/XWords4/src/org/eehouse/android/xw4/DwnldDelegate.java

@@ -307,7 +307,7 @@ public class DwnldDelegate extends ListDelegateBase {
     } // init
 
     @Override
-    protected boolean onBackPressed() 
+    protected boolean handleBackPressed()
     {  
         // cancel any tasks that remain
         for ( Iterator<DownloadFilesTask> iter = m_dfts.iterator(); 
@@ -315,7 +315,7 @@ public class DwnldDelegate extends ListDelegateBase {
             DownloadFilesTask dft = iter.next();
             dft.cancel( true );
         }
-        return super.onBackPressed();
+        return super.handleBackPressed();
     }
 
     private void mkListAdapter()

xwords4/android/XWords4/src/org/eehouse/android/xw4/GameConfigDelegate.java

@@ -755,7 +755,7 @@ public class GameConfigDelegate extends DelegateBase
     } // onClick
 
     @Override
-    protected boolean onBackPressed()
+    protected boolean handleBackPressed()
     {
         boolean consumed = false;
         if ( ! isFinishing() ) {

xwords4/android/XWords4/src/org/eehouse/android/xw4/GamesListDelegate.java

@@ -1303,7 +1303,7 @@ public class GamesListDelegate extends ListDelegateBase
     }
 
     @Override
-    protected boolean onBackPressed()
+    protected boolean handleBackPressed()
     {
         boolean handled = 0 < m_selGames.size() || 0 < m_selGroupIDs.size();
         if ( handled ) {

xwords4/android/XWords4/src/org/eehouse/android/xw4/MainActivity.java

@@ -145,6 +145,19 @@ public class MainActivity extends XWActivity
         return handled;
     }
 
+    /**
+     * The right-most pane only gets a chance to handle on-back-pressed.
+     */
+    protected boolean dispatchBackPressed()
+    {
+        View child = m_root.getChildAt( m_root.getChildCount() - 1 );
+        Fragment frag = getSupportFragmentManager()
+            .findFragmentById( child.getId() );
+        boolean handled = ((XWFragment)frag).getDelegate()
+            .handleBackPressed();
+        return handled;
+    }
+
     //////////////////////////////////////////////////////////////////////
     // Delegator interface
     //////////////////////////////////////////////////////////////////////

xwords4/android/XWords4/src/org/eehouse/android/xw4/StudyListDelegate.java

@@ -86,7 +86,7 @@ public class StudyListDelegate extends ListDelegateBase
     }
 
     @Override
-    protected boolean onBackPressed() 
+    protected boolean handleBackPressed()
     {
         boolean handled = 0 < m_checkeds.size();
         if ( handled ) {

xwords4/android/XWords4/src/org/eehouse/android/xw4/XWActivity.java

@@ -128,7 +128,7 @@ public class XWActivity extends FragmentActivity implements Delegator {
 
     @Override
     public void onBackPressed() {
-        if ( !m_dlgt.onBackPressed() ) {
+        if ( !m_dlgt.handleBackPressed() ) {
             super.onBackPressed();
         }
     }

xwords4/android/XWords4/src/org/eehouse/android/xw4/loc/LocDelegate.java

@@ -56,7 +56,8 @@ public class LocDelegate extends ListDelegateBase
         m_activity = delegator.getActivity();
     }
 
-    protected boolean onBackPressed()
+    @Override
+    protected boolean handleBackPressed()
     {
         LocUtils.saveLocalData( m_activity );
         return false;