blob: 7c574157a1855d995660cbaa4b86d5acf8a23b0a [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.
*
* 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 "HTMLFrameElementBase.h"
#include "Document.h"
#include "ElementInlines.h"
#include "FocusController.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameView.h"
#include "HTMLNames.h"
#include "HTMLParserIdioms.h"
#include "JSDOMBindingSecurity.h"
#include "Page.h"
#include "RenderWidget.h"
#include "ScriptController.h"
#include "Settings.h"
#include "SubframeLoader.h"
#include <wtf/IsoMallocInlines.h>
#include <wtf/URL.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLFrameElementBase);
using namespace HTMLNames;
HTMLFrameElementBase::HTMLFrameElementBase(const QualifiedName& tagName, Document& document)
: HTMLFrameOwnerElement(tagName, document)
{
setHasCustomStyleResolveCallbacks();
}
bool HTMLFrameElementBase::canLoadScriptURL(const URL& scriptURL) const
{
return canLoadURL(scriptURL);
}
bool HTMLFrameElementBase::canLoad() const
{
// FIXME: Why is it valuable to return true when m_frameURL is empty?
// FIXME: After openURL replaces an empty URL with the blank URL, this may no longer necessarily return true.
return m_frameURL.isEmpty() || canLoadURL(m_frameURL);
}
bool HTMLFrameElementBase::canLoadURL(const String& relativeURL) const
{
return canLoadURL(document().completeURL(relativeURL));
}
// Note that unlike HTMLPlugInImageElement::canLoadURL this uses ScriptController::canAccessFromCurrentOrigin.
bool HTMLFrameElementBase::canLoadURL(const URL& completeURL) const
{
if (completeURL.protocolIsJavaScript()) {
RefPtr<Document> contentDocument = this->contentDocument();
if (contentDocument && !ScriptController::canAccessFromCurrentOrigin(contentDocument->frame(), document()))
return false;
}
return !isProhibitedSelfReference(completeURL);
}
void HTMLFrameElementBase::openURL(LockHistory lockHistory, LockBackForwardList lockBackForwardList)
{
if (!canLoad())
return;
if (m_frameURL.isEmpty())
m_frameURL = aboutBlankURL().string();
if (shouldLoadFrameLazily())
return;
RefPtr<Frame> parentFrame = document().frame();
if (!parentFrame)
return;
document().willLoadFrameElement(document().completeURL(m_frameURL));
String frameName = getNameAttribute();
if (frameName.isNull() && UNLIKELY(document().settings().needsFrameNameFallbackToIdQuirk()))
frameName = getIdAttribute();
parentFrame->loader().subframeLoader().requestFrame(*this, m_frameURL, frameName, lockHistory, lockBackForwardList);
}
void HTMLFrameElementBase::parseAttribute(const QualifiedName& name, const AtomString& value)
{
if (name == srcdocAttr) {
if (value.isNull()) {
const AtomString& srcValue = attributeWithoutSynchronization(srcAttr);
if (!srcValue.isNull())
setLocation(stripLeadingAndTrailingHTMLSpaces(srcValue));
} else
setLocation("about:srcdoc");
} else if (name == srcAttr && !hasAttributeWithoutSynchronization(srcdocAttr))
setLocation(stripLeadingAndTrailingHTMLSpaces(value));
else
HTMLFrameOwnerElement::parseAttribute(name, value);
}
Node::InsertedIntoAncestorResult HTMLFrameElementBase::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree)
{
HTMLFrameOwnerElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
if (insertionType.connectedToDocument)
return InsertedIntoAncestorResult::NeedsPostInsertionCallback;
return InsertedIntoAncestorResult::Done;
}
void HTMLFrameElementBase::didFinishInsertingNode()
{
if (!isConnected())
return;
// DocumentFragments don't kick off any loads.
if (!document().frame())
return;
if (!SubframeLoadingDisabler::canLoadFrame(*this))
return;
if (!renderer())
invalidateStyleAndRenderersForSubtree();
openURL();
}
void HTMLFrameElementBase::didAttachRenderers()
{
if (RenderWidget* part = renderWidget()) {
if (RefPtr<Frame> frame = contentFrame())
part->setWidget(frame->view());
}
}
URL HTMLFrameElementBase::location() const
{
if (hasAttributeWithoutSynchronization(srcdocAttr))
return aboutSrcDocURL();
return document().completeURL(attributeWithoutSynchronization(srcAttr));
}
void HTMLFrameElementBase::setLocation(const String& str)
{
if (document().settings().needsAcrobatFrameReloadingQuirk() && m_frameURL == str)
return;
m_frameURL = AtomString(str);
if (isConnected())
openURL(LockHistory::No, LockBackForwardList::No);
}
void HTMLFrameElementBase::setLocation(JSC::JSGlobalObject& state, const String& newLocation)
{
if (WTF::protocolIsJavaScript(stripLeadingAndTrailingHTMLSpaces(newLocation))) {
if (!BindingSecurity::shouldAllowAccessToNode(state, contentDocument()))
return;
}
setLocation(newLocation);
}
bool HTMLFrameElementBase::supportsFocus() const
{
return true;
}
void HTMLFrameElementBase::setFocus(bool received, FocusVisibility visibility)
{
HTMLFrameOwnerElement::setFocus(received, visibility);
if (Page* page = document().page()) {
CheckedRef focusController { page->focusController() };
if (received)
focusController->setFocusedFrame(contentFrame());
else if (focusController->focusedFrame() == contentFrame()) // Focus may have already been given to another frame, don't take it away.
focusController->setFocusedFrame(nullptr);
}
}
bool HTMLFrameElementBase::isURLAttribute(const Attribute& attribute) const
{
return attribute.name() == srcAttr || attribute.name() == longdescAttr || HTMLFrameOwnerElement::isURLAttribute(attribute);
}
bool HTMLFrameElementBase::isHTMLContentAttribute(const Attribute& attribute) const
{
return attribute.name() == srcdocAttr || HTMLFrameOwnerElement::isHTMLContentAttribute(attribute);
}
int HTMLFrameElementBase::width()
{
document().updateLayoutIgnorePendingStylesheets();
if (!renderBox())
return 0;
return renderBox()->width();
}
int HTMLFrameElementBase::height()
{
document().updateLayoutIgnorePendingStylesheets();
if (!renderBox())
return 0;
return renderBox()->height();
}
ScrollbarMode HTMLFrameElementBase::scrollingMode() const
{
auto scrollingAttribute = attributeWithoutSynchronization(scrollingAttr);
return equalLettersIgnoringASCIICase(scrollingAttribute, "no")
|| equalLettersIgnoringASCIICase(scrollingAttribute, "noscroll")
|| equalLettersIgnoringASCIICase(scrollingAttribute, "off")
? ScrollbarMode::AlwaysOff : ScrollbarMode::Auto;
}
} // namespace WebCore