dispatch onActivityResult() from DualpaneDelegate

Inviting didn't work because it's done by a separate activity whose
onActivityResult() was dropped because DualpaneDelegate was the
recipient. That now handles it by asking MainActivity to sent it to a
contained Delegate. Currently will go only to the top (rightmost) one.

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

@@ -111,7 +111,8 @@ public class DelegateBase implements DlgClickNotify,
     protected void onActivityResult( RequestCode requestCode, int resultCode,
                                      Intent data )
     {
-        DbgUtils.logf( "DelegateBase.onActivityResult(): subclass responsibility!!!" );
+        DbgUtils.logf( "%s.onActivityResult(): subclass responsibility!!!", 
+                       getClass().getSimpleName() );
     }
 
     protected void onResume()

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

@@ -68,4 +68,11 @@ public class DualpaneDelegate extends DelegateBase {
         DbgUtils.logf( "DualpaneDelegate.handleBackPressed() => %b", handled );
         return handled;
     }
+
+    @Override
+    protected void onActivityResult( RequestCode requestCode, int resultCode, Intent data )
+    {
+        MainActivity main = (MainActivity)m_activity;
+        main.dispatchOnActivityResult( requestCode, resultCode, data );
+    }
 }

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

@@ -185,14 +185,25 @@ public class MainActivity extends XWActivity
      */
     protected boolean dispatchBackPressed()
     {
-        View child = m_root.getChildAt( m_root.getChildCount() - 1 );
+        XWFragment frag = getTopFragment();
-        Fragment frag = getSupportFragmentManager()
-            .findFragmentById( child.getId() );
         boolean handled = null != frag
-            &&((XWFragment)frag).getDelegate().handleBackPressed();
+            && frag.getDelegate().handleBackPressed();
         return handled;
     }
 
+    protected void dispatchOnActivityResult( RequestCode requestCode, 
+                                             int resultCode, Intent data )
+    {
+        XWFragment frag = getTopFragment();
+
+        if ( null != frag ) {
+            frag.onActivityResult( requestCode.ordinal(), resultCode, data );
+        } else {
+            DbgUtils.logdf( "dispatchOnActivityResult(): can't dispatch %s", 
+                            requestCode.toString() );
+        }
+    }
+
     protected Point getFragmentSize()
     {
         Rect rect = new Rect();
@@ -305,6 +316,14 @@ public class MainActivity extends XWActivity
     // Dualpane mode stuff
     ////////////////////////////////////////////////////////////////////////
 
+    private XWFragment getTopFragment()
+    {
+        View child = m_root.getChildAt( m_root.getChildCount() - 1 );
+        XWFragment frag = (XWFragment)getSupportFragmentManager()
+            .findFragmentById( child.getId() );
+        return frag;
+    }
+
     // Walk all Fragment children and if they care notify of change.
     private void tellOrientationChanged()
     {

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

@@ -90,6 +90,8 @@ public class XWFragment extends Fragment implements Delegator {
     @Override
     public void onResume()
     {
+        DbgUtils.logdf( "%s.onResume() called",
+                        this.getClass().getSimpleName() );
         super.onResume();
         m_dlgt.onResume();
     }