Implement <select> Popup Menu using PagePopup

Source/core/html/HTMLOptionElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2011 Motorola Mobility, Inc.  All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 154 matching lines @@
         if (!isHTMLOptionElement(*items[i]))
             continue;
         if (items[i].get() == this)
             return optionIndex;
         ++optionIndex;
     }
 
     return 0;
 }
 
+int HTMLOptionElement::listIndex() const
+{
+    HTMLSelectElement* selectElement = ownerSelectElement();

[tkent, 2014/12/15 09:26:04]

if (HTMLSelectElement* selectElement = ownerSelectElement())
    return selectElement->listIndexForOption(*this);
return -1;

is simpler.

[keishi, 2014/12/16 03:53:24]

Done.

+    if (!selectElement)
+        return -1;
+
+    return selectElement->listIndexForOption(*this);
+}
+
 void HTMLOptionElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     if (name == valueAttr) {
         if (HTMLDataListElement* dataList = ownerDataListElement())
             dataList->optionElementChildrenChanged();
     } else if (name == disabledAttr) {
         bool oldDisabled = m_disabled;
         m_disabled = !value.isNull();
         if (oldDisabled != m_disabled) {
             pseudoStateChanged(CSSSelector::PseudoDisabled);
@@ skipping 224 matching lines @@
         ASSERT(parent);
         if (isHTMLOptGroupElement(*parent)) {
             RenderStyle* parentStyle = parent->renderStyle() ? parent->renderStyle() : parent->computedStyle();
             return !parentStyle || parentStyle->display() == NONE;
         }
     }
     return m_style->display() == NONE;
 }
 
 } // namespace blink