Make select drop down popup RTL aware

Source/web/PopupListBox.cpp

 /*
  * Copyright (c) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 274 matching lines @@
     return true;
 }
 
 HostWindow* PopupListBox::hostWindow() const
 {
     // Our parent is the root ScrollView, so it is the one that has a
     // HostWindow. FrameView::hostWindow() works similarly.
     return parent() ? parent()->hostWindow() : 0;
 }
 
+bool PopupListBox::shouldPlaceVerticalScrollbarOnLeft() const
+{
+    return m_popupClient->menuStyle().textDirection() == RTL;
+}
+
 // From HTMLSelectElement.cpp
 static String stripLeadingWhiteSpace(const String& string)
 {
     int length = string.length();
     int i;
     for (i = 0; i < length; ++i)
         if (string[i] != noBreakSpace
             && (string[i] <= 0x7F ? !isASCIISpace(string[i]) : (direction(string[i]) != WhiteSpaceNeutral)))
             break;
 
@@ skipping 47 matching lines @@
             selectIndex(index);
             return;
         }
     }
 }
 
 void PopupListBox::paint(GraphicsContext* gc, const IntRect& rect)
 {
     // Adjust coords for scrolled frame.
     IntRect r = intersection(rect, frameRect());
-    int tx = x() - scrollX();
+    int tx = x() - scrollX() + ((shouldPlaceVerticalScrollbarOnLeft() && verticalScrollbar()) ? verticalScrollbar()->width() : 0);
     int ty = y() - scrollY();
 
     r.move(-tx, -ty);
 
     // Set clip rect to match revised damage rect.
     gc->save();
     gc->translate(static_cast<float>(tx), static_cast<float>(ty));
     gc->clip(r);
 
     // FIXME: Can we optimize scrolling to not require repainting the entire
@@ skipping 291 matching lines @@
     return IntRect(0, m_items[index]->yOffset, visibleWidth(), getRowHeight(index));
 }
 
 void PopupListBox::invalidateRow(int index)
 {
     if (index < 0)
         return;
 
     // Invalidate in the window contents, as FramelessScrollView::invalidateRect
     // paints in the window coordinates.
-    invalidateRect(contentsToWindow(getRowBounds(index)));
+    IntRect clipRect = contentsToWindow(getRowBounds(index));
+    if (shouldPlaceVerticalScrollbarOnLeft() && verticalScrollbar())
+        clipRect.move(verticalScrollbar()->width(), 0);
+    invalidateRect(clipRect);
 }
 
 void PopupListBox::scrollToRevealRow(int index)
 {
     if (index < 0)
         return;
 
     IntRect rowRect = getRowBounds(index);
 
     if (rowRect.y() < scrollY()) {
@@ skipping 244 matching lines @@
 {
     return numItems() && IntRect(0, 0, width(), height()).contains(point);
 }
 
 int PopupListBox::popupContentHeight() const
 {
     return height();
 }
 
 } // namespace WebCore