Make SearchView RTL aware

- see bug #5429822 UI should be mirrored for RTL locales (Arabic, Hebrew, farsi)

Change-Id: I7e7b51dccdd3b111e0594509334579b0502d24c8

Author: Fabrice Di Meglio

core/java/android/widget/AutoCompleteTextView.java

@@ -1078,6 +1078,7 @@ public void showDropDown() {
             mPopup.setInputMethodMode(ListPopupWindow.INPUT_METHOD_NEEDED);
             mPopup.setListItemExpandMax(EXPAND_MAX);
         }
+        mPopup.setLayoutDirection(getResolvedLayoutDirection());
         mPopup.show();
         mPopup.getListView().setOverScrollMode(View.OVER_SCROLL_ALWAYS);
     }

core/java/android/widget/ListPopupWindow.java

@@ -1121,6 +1121,12 @@ public void onNothingSelected(AdapterView<?> parent) {
         return listContent + otherHeights;
     }
 
+    public void setLayoutDirection(int resolvedLayoutDirection) {
+        if (mDropDownList != null) {
+            mDropDownList.setLayoutDirection(resolvedLayoutDirection);
+        }
+    }
+
     /**
      * <p>Wrapper class for a ListView. This wrapper can hijack the focus to
      * make sure the list uses the appropriate drawables and states when

core/java/android/widget/SearchView.java

@@ -326,7 +326,6 @@ public void onLayoutChange(View v, int left, int top, int right, int bottom,
                         int oldLeft, int oldTop, int oldRight, int oldBottom) {
                     adjustDropDownSizeAndPosition();
                 }
-
             });
         }
 
@@ -1285,15 +1284,22 @@ private void adjustDropDownSizeAndPosition() {
             Resources res = getContext().getResources();
             int anchorPadding = mSearchPlate.getPaddingLeft();
             Rect dropDownPadding = new Rect();
+            final boolean isLayoutRtl = isLayoutRtl();
             int iconOffset = mIconifiedByDefault
                     ? res.getDimensionPixelSize(R.dimen.dropdownitem_icon_width)
                     + res.getDimensionPixelSize(R.dimen.dropdownitem_text_padding_left)
                     : 0;
             mQueryTextView.getDropDownBackground().getPadding(dropDownPadding);
-            mQueryTextView.setDropDownHorizontalOffset(-(dropDownPadding.left + iconOffset)
-                    + anchorPadding);
-            mQueryTextView.setDropDownWidth(mDropDownAnchor.getWidth() + dropDownPadding.left
-                    + dropDownPadding.right + iconOffset - (anchorPadding));
+            int offset;
+            if (isLayoutRtl) {
+                offset = - dropDownPadding.left;
+            } else {
+                offset = anchorPadding - (dropDownPadding.left + iconOffset);
+            }
+            mQueryTextView.setDropDownHorizontalOffset(offset);
+            final int width = mDropDownAnchor.getWidth() + dropDownPadding.left
+                    + dropDownPadding.right + iconOffset - anchorPadding;
+            mQueryTextView.setDropDownWidth(width);
         }
     }
 
@@ -1347,6 +1353,11 @@ public void onNothingSelected(AdapterView<?> parent) {
         }
     };
 
+    @Override
+    public void onResolvedLayoutDirectionChanged() {
+        mQueryTextView.setLayoutDirection(getResolvedLayoutDirection());
+    }
+
     /**
      * Query rewriting.
      */