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/*
* Copyright (C) 2006-2023 Apple Inc. All rights reserved.
* Copyright (C) 2013-2016 Google 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.
*
*/
#pragma once
#include "Frame.h"
#include "HTMLElement.h"
#include "ReferrerPolicy.h"
#include "SecurityContext.h"
#include <wtf/HashCountedSet.h>
#include <wtf/NeverDestroyed.h>
namespace WebCore {
class RenderWidget;
class HTMLFrameOwnerElement : public HTMLElement {
WTF_MAKE_ISO_ALLOCATED(HTMLFrameOwnerElement);
public:
virtual ~HTMLFrameOwnerElement();
Frame* contentFrame() const { return m_contentFrame.get(); }
WEBCORE_EXPORT WindowProxy* contentWindow() const;
WEBCORE_EXPORT Document* contentDocument() const;
WEBCORE_EXPORT void setContentFrame(Frame&);
void clearContentFrame();
void disconnectContentFrame();
// Most subclasses use RenderWidget (either RenderEmbeddedObject or RenderIFrame)
// except for HTMLObjectElement and HTMLEmbedElement which may return any
// RenderElement when using fallback content.
RenderWidget* renderWidget() const;
Document* getSVGDocument() const;
virtual ScrollbarMode scrollingMode() const { return ScrollbarMode::Auto; }
SandboxFlags sandboxFlags() const { return m_sandboxFlags; }
WEBCORE_EXPORT void scheduleInvalidateStyleAndLayerComposition();
virtual bool canLoadScriptURL(const URL&) const = 0;
virtual ReferrerPolicy referrerPolicy() const { return ReferrerPolicy::EmptyString; }
virtual bool shouldLoadFrameLazily() { return false; }
virtual bool isLazyLoadObserverActive() const { return false; }
protected:
constexpr static auto CreateHTMLFrameOwnerElement = CreateHTMLElement;
HTMLFrameOwnerElement(const QualifiedName& tagName, Document&, ConstructionType = CreateHTMLFrameOwnerElement);
void setSandboxFlags(SandboxFlags);
bool isProhibitedSelfReference(const URL&) const;
bool isKeyboardFocusable(KeyboardEvent*) const override;
private:
bool isFrameOwnerElement() const final { return true; }
WeakPtr<Frame> m_contentFrame;
SandboxFlags m_sandboxFlags { SandboxNone };
};
class SubframeLoadingDisabler {
public:
explicit SubframeLoadingDisabler(ContainerNode* root)
: m_root(root)
{
if (m_root)
disabledSubtreeRoots().add(m_root);
}
~SubframeLoadingDisabler()
{
if (m_root)
disabledSubtreeRoots().remove(m_root);
}
static bool canLoadFrame(HTMLFrameOwnerElement&);
private:
static HashCountedSet<ContainerNode*>& disabledSubtreeRoots()
{
static NeverDestroyed<HashCountedSet<ContainerNode*>> nodes;
return nodes;
}
ContainerNode* m_root;
};
inline HTMLFrameOwnerElement* Frame::ownerElement() const
{
return m_ownerElement.get();
}
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::HTMLFrameOwnerElement)
static bool isType(const WebCore::Node& node) { return node.isFrameOwnerElement(); }
SPECIALIZE_TYPE_TRAITS_END()
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