blob: 3e9fc8a9ad8a0f66024a80d9865be31cf7ab9b6d [file] [log] [blame]
/*
* 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) 2004-2019 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 "CSSPropertyNames.h"
#include "DOMTokenList.h"
#include "Frame.h"
#include "HTMLNames.h"
#include "RenderIFrame.h"
#include "RuntimeEnabledFeatures.h"
#include "ScriptableDocumentParser.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLIFrameElement);
using namespace HTMLNames;
inline HTMLIFrameElement::HTMLIFrameElement(const QualifiedName& tagName, Document& document)
: HTMLFrameElementBase(tagName, document)
{
ASSERT(hasTagName(iframeTag));
}
Ref<HTMLIFrameElement> HTMLIFrameElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new HTMLIFrameElement(tagName, document));
}
int HTMLIFrameElement::defaultTabIndex() const
{
return 0;
}
DOMTokenList& HTMLIFrameElement::sandbox()
{
if (!m_sandbox) {
m_sandbox = makeUnique<DOMTokenList>(*this, sandboxAttr, [](Document&, StringView token) {
return SecurityContext::isSupportedSandboxPolicy(token);
});
}
return *m_sandbox;
}
bool HTMLIFrameElement::isPresentationAttribute(const QualifiedName& name) const
{
if (name == widthAttr || name == heightAttr || name == frameborderAttr)
return true;
return HTMLFrameElementBase::isPresentationAttribute(name);
}
void HTMLIFrameElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomString& value, MutableStyleProperties& style)
{
if (name == widthAttr)
addHTMLLengthToStyle(style, CSSPropertyWidth, value);
else if (name == heightAttr)
addHTMLLengthToStyle(style, CSSPropertyHeight, value);
else if (name == alignAttr)
applyAlignmentAttributeToStyle(value, style);
else if (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 (!value.toInt()) {
// Add a rule that nulls out our border width.
addPropertyToPresentationAttributeStyle(style, CSSPropertyBorderWidth, 0, CSSUnitType::CSS_PX);
}
} else
HTMLFrameElementBase::collectStyleForPresentationAttribute(name, value, style);
}
void HTMLIFrameElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
if (name == sandboxAttr) {
if (m_sandbox)
m_sandbox->associatedAttributeValueChanged(value);
String invalidTokens;
setSandboxFlags(value.isNull() ? SandboxNone : SecurityContext::parseSandboxPolicy(value, invalidTokens));
if (!invalidTokens.isNull())
document().addConsoleMessage(MessageSource::Other, MessageLevel::Error, "Error while parsing the 'sandbox' attribute: " + invalidTokens);
} else if (name == allowAttr || name == allowfullscreenAttr || name == webkitallowfullscreenAttr)
m_featurePolicy = WTF::nullopt;
else
HTMLFrameElementBase::parseAttribute(name, value);
}
bool HTMLIFrameElement::rendererIsNeeded(const RenderStyle& style)
{
return style.display() != DisplayType::None && canLoad();
}
RenderPtr<RenderElement> HTMLIFrameElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
{
return createRenderer<RenderIFrame>(*this, WTFMove(style));
}
void HTMLIFrameElement::setReferrerPolicyForBindings(const AtomString& value)
{
setAttributeWithoutSynchronization(referrerpolicyAttr, value);
}
String HTMLIFrameElement::referrerPolicyForBindings() const
{
return referrerPolicyToString(referrerPolicy());
}
ReferrerPolicy HTMLIFrameElement::referrerPolicy() const
{
if (RuntimeEnabledFeatures::sharedFeatures().referrerPolicyAttributeEnabled())
return parseReferrerPolicy(attributeWithoutSynchronization(referrerpolicyAttr), ReferrerPolicySource::ReferrerPolicyAttribute).valueOr(ReferrerPolicy::EmptyString);
return ReferrerPolicy::EmptyString;
}
const FeaturePolicy& HTMLIFrameElement::featurePolicy() const
{
if (!m_featurePolicy)
m_featurePolicy = FeaturePolicy::parse(document(), *this, attributeWithoutSynchronization(allowAttr));
return *m_featurePolicy;
}
}