Bug 769237: Menu popup arrow position doesn't need to be calculated. [r=mfinkle]

--HG--
extra : rebase_source : ae4e17c08a73223d49adfe55bb989261abb00f67

mobile/android/base/BrowserToolbar.java

@@ -548,7 +548,7 @@ public class BrowserToolbar implements ViewSwitcher.ViewFactory,
             return false;
 
         if (mMenuPopup != null && !mMenuPopup.isShowing())
-            mMenuPopup.show(mMenu);
+            mMenuPopup.showAsDropDown(mMenu);
 
         return true;
     }
@@ -565,7 +565,6 @@ public class BrowserToolbar implements ViewSwitcher.ViewFactory,
 
     // MenuPopup holds the MenuPanel in Honeycomb/ICS devices with no hardware key
     public class MenuPopup extends PopupWindow {
-        private ImageView mArrow;
         private RelativeLayout mPanel;
 
         public MenuPopup(Context context) {
@@ -581,7 +580,6 @@ public class BrowserToolbar implements ViewSwitcher.ViewFactory,
             RelativeLayout layout = (RelativeLayout) inflater.inflate(R.layout.menu_popup, null);
             setContentView(layout);
 
-            mArrow = (ImageView) layout.findViewById(R.id.menu_arrow);
             mPanel = (RelativeLayout) layout.findViewById(R.id.menu_panel);
         }
 
@@ -589,32 +587,5 @@ public class BrowserToolbar implements ViewSwitcher.ViewFactory,
             mPanel.removeAllViews();
             mPanel.addView(view);
         }
-
-        public void show(View anchor) {
-            showAsDropDown(anchor);
-
-            int location[] = new int[2];
-            anchor.getLocationOnScreen(location);
-
-            int menuButtonWidth = anchor.getWidth();
-            int arrowWidth = mArrow.getWidth();
-
-            int rightMostEdge = location[0] + menuButtonWidth;
-
-            DisplayMetrics metrics = new DisplayMetrics();
-            GeckoApp.mAppContext.getWindowManager().getDefaultDisplay().getMetrics(metrics);
-
-            int leftMargin = (int)(240 * metrics.density) - (metrics.widthPixels - location[0] - menuButtonWidth/2);
-
-            RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) mArrow.getLayoutParams();
-            RelativeLayout.LayoutParams newParams = new RelativeLayout.LayoutParams(params);
-            newParams.setMargins(leftMargin,
-                                 params.topMargin,
-                                 0,
-                                 params.bottomMargin);
-
-            // From the left of popup, the arrow should move half of (menuButtonWidth - arrowWidth)
-            mArrow.setLayoutParams(newParams);
-        }
     }
 }

mobile/android/base/resources/layout/menu_popup.xml

@@ -10,6 +10,7 @@
     <RelativeLayout android:id="@+id/menu_panel"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
+                    android:layout_alignParentRight="true"
                     android:background="@drawable/menu_popup_bg">
 
         <!-- MenuPanel will be added here dynamically -->
@@ -20,7 +21,8 @@
                android:layout_width="28dip"
                android:layout_height="10dip"
                android:layout_marginTop="2dip"
-               android:layout_alignParentRight="true"
+               android:layout_marginRight="8dip"
+               android:layout_alignRight="@id/menu_panel"
                android:src="@drawable/menu_popup_arrow"
                android:scaleType="fitXY"/>