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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Simon Hausmann (hausmann@kde.org)
* (C) 2001 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004, 2006, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2009 Ericsson AB. 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
* 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 "HTMLIFrameElement.h"
#include "Attribute.h"
#include "CSSPropertyNames.h"
#include "Frame.h"
#include "HTMLDocument.h"
#include "HTMLNames.h"
#include "RenderIFrame.h"
namespace WebCore {
using namespace HTMLNames;
inline HTMLIFrameElement::HTMLIFrameElement(const QualifiedName& tagName, Document* document)
: HTMLFrameElementBase(tagName, document)
{
ASSERT(hasTagName(iframeTag));
}
PassRefPtr<HTMLIFrameElement> HTMLIFrameElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new HTMLIFrameElement(tagName, document));
}
bool HTMLIFrameElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
{
if (attrName == widthAttr || attrName == heightAttr) {
result = eUniversal;
return false;
}
if (attrName == alignAttr) {
result = eReplaced; // Share with <img> since the alignment behavior is the same.
return false;
}
if (attrName == frameborderAttr) {
result = eReplaced;
return false;
}
return HTMLFrameElementBase::mapToEntry(attrName, result);
}
static SandboxFlags parseSandboxAttribute(Attribute* attribute)
{
if (attribute->isNull())
return SandboxNone;
// Parse the unordered set of unique space-separated tokens.
SandboxFlags flags = SandboxAll;
const UChar* characters = attribute->value().characters();
unsigned length = attribute->value().length();
unsigned start = 0;
while (true) {
while (start < length && isASCIISpace(characters[start]))
++start;
if (start >= length)
break;
unsigned end = start + 1;
while (end < length && !isASCIISpace(characters[end]))
++end;
// Turn off the corresponding sandbox flag if it's set as "allowed".
String sandboxToken = String(characters + start, end - start);
if (equalIgnoringCase(sandboxToken, "allow-same-origin"))
flags &= ~SandboxOrigin;
else if (equalIgnoringCase(sandboxToken, "allow-forms"))
flags &= ~SandboxForms;
else if (equalIgnoringCase(sandboxToken, "allow-scripts"))
flags &= ~SandboxScripts;
else if (equalIgnoringCase(sandboxToken, "allow-top-navigation"))
flags &= ~SandboxTopNavigation;
start = end + 1;
}
return flags;
}
void HTMLIFrameElement::parseMappedAttribute(Attribute* attr)
{
if (attr->name() == widthAttr)
addCSSLength(attr, CSSPropertyWidth, attr->value());
else if (attr->name() == heightAttr)
addCSSLength(attr, CSSPropertyHeight, attr->value());
else if (attr->name() == alignAttr)
addHTMLAlignment(attr);
else if (attr->name() == nameAttr) {
const AtomicString& newName = attr->value();
if (inDocument() && document()->isHTMLDocument()) {
HTMLDocument* document = static_cast<HTMLDocument*>(this->document());
document->removeExtraNamedItem(m_name);
document->addExtraNamedItem(newName);
}
m_name = newName;
} else if (attr->name() == frameborderAttr) {
// Frame border doesn't really match the HTML4 spec definition for iframes. It simply adds
// a presentational hint that the border should be off if set to zero.
if (!attr->isNull() && !attr->value().toInt())
// Add a rule that nulls out our border width.
addCSSLength(attr, CSSPropertyBorderWidth, "0");
} else if (attr->name() == sandboxAttr)
setSandboxFlags(parseSandboxAttribute(attr));
else
HTMLFrameElementBase::parseMappedAttribute(attr);
}
bool HTMLIFrameElement::rendererIsNeeded(RenderStyle* style)
{
return isURLAllowed() && style->display() != NONE;
}
RenderObject* HTMLIFrameElement::createRenderer(RenderArena* arena, RenderStyle*)
{
return new (arena) RenderIFrame(this);
}
void HTMLIFrameElement::insertedIntoDocument()
{
if (document()->isHTMLDocument())
static_cast<HTMLDocument*>(document())->addExtraNamedItem(m_name);
HTMLFrameElementBase::insertedIntoDocument();
}
void HTMLIFrameElement::removedFromDocument()
{
if (document()->isHTMLDocument())
static_cast<HTMLDocument*>(document())->removeExtraNamedItem(m_name);
HTMLFrameElementBase::removedFromDocument();
}
bool HTMLIFrameElement::isURLAttribute(Attribute* attr) const
{
return attr->name() == srcAttr;
}
}
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