If an element has unicode-bidi: plaintext and no strong directional characters. By default it shoul…

Source/core/html/HTMLElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2011 Motorola Mobility. All rights reserved.
  *
  * 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 28 matching lines @@
 #include "core/dom/EventListener.h"
 #include "core/dom/EventNames.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/KeyboardEvent.h"
 #include "core/dom/NodeTraversal.h"
 #include "core/dom/Text.h"
 #include "core/editing/markup.h"
 #include "core/html/HTMLBRElement.h"
 #include "core/html/HTMLFormElement.h"
 #include "core/html/HTMLTemplateElement.h"
+#include "core/html/HTMLTextAreaElement.h"
 #include "core/html/HTMLTextFormControlElement.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "core/loader/FrameLoader.h"
 #include "core/page/Frame.h"
 #include "core/page/Settings.h"
 #include "core/rendering/RenderWordBreak.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/text/CString.h"
 
 namespace WebCore {
@@ skipping 780 matching lines @@
         isAuto = false;
         return LTR;
     }
 
     isAuto = true;
     return directionality();
 }
 
 TextDirection HTMLElement::directionality(Node** strongDirectionalityTextNode) const
 {
-    if (isHTMLTextFormControlElement(this)) {
+    if (isHTMLTextFormControlElement(this) && !isHTMLTextAreaElement(this)) {

[eseidel, 2013/08/22 23:32:12]

Can we get rid of this code for all other elements eventually?

Also, I would add a comment explaining why textarea is excluded here, noting
that it uses plaintext instead in html.css.

         HTMLTextFormControlElement* textElement = toHTMLTextFormControlElement(const_cast<HTMLElement*>(this));
         bool hasStrongDirectionality;
         Unicode::Direction textDirection = textElement->value().defaultWritingDirection(&hasStrongDirectionality);
         if (strongDirectionalityTextNode)
             *strongDirectionalityTextNode = hasStrongDirectionality ? textElement : 0;
         return (textDirection == Unicode::LeftToRight) ? LTR : RTL;
     }
 
     Node* node = firstChild();
     while (node) {
@@ skipping 238 matching lines @@
 #ifndef NDEBUG
 
 // For use in the debugger
 void dumpInnerHTML(WebCore::HTMLElement*);
 
 void dumpInnerHTML(WebCore::HTMLElement* element)
 {
     printf("%s\n", element->innerHTML().ascii().data());
 }
 #endif