Move caret to correct position when dir=auto

Source/core/rendering/RenderText.cpp

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 676 matching lines @@
         break;
     case JUSTIFY:
     case TASTART:
         rightAligned = !cbStyle->isLeftToRightDirection();
         break;
     case TAEND:
         rightAligned = cbStyle->isLeftToRightDirection();
         break;
     }
 
+    // for dir=auto, use inlineBoxBidiLevel() to test the correct direction for the cursor.
+    if (rightAligned && (node() && node()->selfOrAncestorHasDirAutoAttribute())) {
+        if (inlineBox->bidiLevel()%2 != 1)
+            rightAligned = false;
+    }
+
     if (rightAligned) {
         left = std::max(left, leftEdge);
         left = std::min(left, rootRight - caretWidth);
     } else {
         left = std::min(left, rightEdge - caretWidthRightOfOffset);
         left = std::max(left, rootLeft);
     }
 
     return style()->isHorizontalWritingMode() ? IntRect(left, top, caretWidth, height) : IntRect(top, left, height, caretWidth);
 }
@@ skipping 1166 matching lines @@
     }
     secureTextTimer->restartWithNewText(lastTypedCharacterOffset);
 }
 
 PassRefPtr<AbstractInlineTextBox> RenderText::firstAbstractInlineTextBox()
 {
     return AbstractInlineTextBox::getOrCreate(this, m_firstTextBox);
 }
 
 } // namespace blink