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/*
* Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.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
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "OptionElement.h"
#include "Document.h"
#include "Element.h"
#include "HTMLNames.h"
#include "HTMLOptionElement.h"
#include "OptionGroupElement.h"
#include "ScriptElement.h"
#include "SelectElement.h"
#include <wtf/Assertions.h>
#if ENABLE(WML)
#include "WMLOptionElement.h"
#include "WMLNames.h"
#endif
namespace WebCore {
void OptionElement::setSelectedState(OptionElementData& data, Element* element, bool selected)
{
if (data.selected() == selected)
return;
data.setSelected(selected);
element->setNeedsStyleRecalc();
}
int OptionElement::optionIndex(SelectElement* selectElement, const Element* element)
{
if (!selectElement)
return 0;
// Let's do this dynamically. Might be a bit slow, but we're sure
// we won't forget to update a member variable in some cases...
const Vector<Element*>& items = selectElement->listItems();
int length = items.size();
int optionIndex = 0;
for (int i = 0; i < length; ++i) {
if (!isOptionElement(items[i]))
continue;
if (items[i] == element)
return optionIndex;
++optionIndex;
}
return 0;
}
String OptionElement::collectOptionLabelOrText(const OptionElementData& data, const Element* element)
{
Document* document = element->document();
String text;
// WinIE does not use the label attribute, so as a quirk, we ignore it.
if (!document->inQuirksMode())
text = data.label();
if (text.isEmpty())
text = collectOptionInnerText(element);
return normalizeText(document, text);
}
String OptionElement::collectOptionInnerText(const Element* element)
{
String text;
Node* n = element->firstChild();
while (n) {
if (n->nodeType() == Node::TEXT_NODE || n->nodeType() == Node::CDATA_SECTION_NODE)
text += n->nodeValue();
// skip script content
if (n->isElementNode() && toScriptElement(static_cast<Element*>(n)))
n = n->traverseNextSibling(element);
else
n = n->traverseNextNode(element);
}
return text;
}
String OptionElement::normalizeText(const Document* document, const String& src)
{
String text = document->displayStringModifiedByEncoding(src);
// In WinIE, leading and trailing whitespace is ignored in options and optgroups. We match this behavior.
text = text.stripWhiteSpace();
// We want to collapse our whitespace too. This will match other browsers.
text = text.simplifyWhiteSpace();
return text;
}
String OptionElement::collectOptionTextRespectingGroupLabel(const OptionElementData& data, const Element* element)
{
Element* parentElement = static_cast<Element*>(element->parentNode());
if (parentElement && toOptionGroupElement(parentElement))
return " " + collectOptionLabelOrText(data, element);
return collectOptionLabelOrText(data, element);
}
String OptionElement::collectOptionValue(const OptionElementData& data, const Element* element)
{
String value = data.value();
if (!value.isNull())
return value;
// Use the text if the value wasn't set.
return collectOptionInnerText(element).stripWhiteSpace();
}
// OptionElementData
OptionElementData::OptionElementData()
: m_selected(false)
{
}
OptionElementData::~OptionElementData()
{
}
OptionElement* toOptionElement(Element* element)
{
if (element->isHTMLElement() && element->hasTagName(HTMLNames::optionTag))
return static_cast<HTMLOptionElement*>(element);
#if ENABLE(WML)
if (element->isWMLElement() && element->hasTagName(WMLNames::optionTag))
return static_cast<WMLOptionElement*>(element);
#endif
return 0;
}
bool isOptionElement(Element* element)
{
return element->hasLocalName(HTMLNames::optionTag)
#if ENABLE(WML)
|| element->hasLocalName(WMLNames::optionTag)
#endif
;
}
}
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