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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"
#include "ScriptableDocumentParser.h"
namespace WebCore {
using namespace HTMLNames;
inline HTMLIFrameElement::HTMLIFrameElement(const QualifiedName& tagName, Document& document)
: HTMLFrameElementBase(tagName, document)
{
ASSERT(hasTagName(iframeTag));
setHasCustomStyleResolveCallbacks();
}
PassRefPtr<HTMLIFrameElement> HTMLIFrameElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(new HTMLIFrameElement(tagName, document));
}
bool HTMLIFrameElement::isPresentationAttribute(const QualifiedName& name) const
{
if (name == widthAttr || name == heightAttr || name == alignAttr || name == frameborderAttr || name == seamlessAttr)
return true;
return HTMLFrameElementBase::isPresentationAttribute(name);
}
void HTMLIFrameElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& 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, CSSPrimitiveValue::CSS_PX);
}
} else
HTMLFrameElementBase::collectStyleForPresentationAttribute(name, value, style);
}
void HTMLIFrameElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (name == sandboxAttr) {
String invalidTokens;
setSandboxFlags(value.isNull() ? SandboxNone : SecurityContext::parseSandboxPolicy(value, invalidTokens));
if (!invalidTokens.isNull())
document().addConsoleMessage(OtherMessageSource, ErrorMessageLevel, "Error while parsing the 'sandbox' attribute: " + invalidTokens);
} else if (name == seamlessAttr) {
// If we're adding or removing the seamless attribute, we need to force the content document to recalculate its StyleResolver.
if (contentDocument())
contentDocument()->styleResolverChanged(DeferRecalcStyle);
} else
HTMLFrameElementBase::parseAttribute(name, value);
}
bool HTMLIFrameElement::rendererIsNeeded(const RenderStyle& style)
{
return isURLAllowed() && style.display() != NONE;
}
RenderPtr<RenderElement> HTMLIFrameElement::createElementRenderer(PassRef<RenderStyle> style)
{
return createRenderer<RenderIFrame>(*this, std::move(style));
}
bool HTMLIFrameElement::shouldDisplaySeamlessly() const
{
return contentDocument() && contentDocument()->shouldDisplaySeamlesslyWithParent();
}
void HTMLIFrameElement::didRecalcStyle(Style::Change styleChange)
{
if (!shouldDisplaySeamlessly())
return;
Document* childDocument = contentDocument();
if (styleChange >= Style::Inherit || childDocument->childNeedsStyleRecalc() || childDocument->needsStyleRecalc())
contentDocument()->recalcStyle(styleChange == Style::Detach ? Style::Force : styleChange);
}
}
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