blob: aa5db05f0f0fd57d8d01644ef3f1e1c6badf595d [file] [log] [blame]
/*
* Copyright (C) 2006, 2007, 2009 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.
*
*/
#ifndef HTMLFrameOwnerElement_h
#define HTMLFrameOwnerElement_h
#include "core/html/HTMLElement.h"
#include "wtf/HashCountedSet.h"
namespace WebCore {
class DOMWindow;
class ExceptionState;
class Frame;
class RenderPart;
class SVGDocument;
class HTMLFrameOwnerElement : public HTMLElement {
public:
virtual ~HTMLFrameOwnerElement();
Frame* contentFrame() const { return m_contentFrame; }
DOMWindow* contentWindow() const;
Document* contentDocument() const;
void setContentFrame(Frame*);
void clearContentFrame();
void disconnectContentFrame();
// Most subclasses use RenderPart (either RenderEmbeddedObject or RenderIFrame)
// except for HTMLObjectElement and HTMLEmbedElement which may return any
// RenderObject when using fallback content.
RenderPart* renderPart() const;
SVGDocument* getSVGDocument(ExceptionState&) const;
virtual ScrollbarMode scrollingMode() const { return ScrollbarAuto; }
SandboxFlags sandboxFlags() const { return m_sandboxFlags; }
virtual bool loadedNonEmptyDocument() const { return false; }
virtual void didLoadNonEmptyDocument() { }
protected:
HTMLFrameOwnerElement(const QualifiedName& tagName, Document*);
void setSandboxFlags(SandboxFlags);
bool loadOrRedirectSubframe(const KURL&, const AtomicString& frameName, bool lockBackForwardList);
virtual bool allowScrollingInContentFrame() { return true; }
virtual int marginWidth() const { return -1; }
virtual int marginHeight() const { return -1; }
private:
virtual bool isKeyboardFocusable() const OVERRIDE;
virtual bool isFrameOwnerElement() const OVERRIDE { return true; }
Frame* m_contentFrame;
SandboxFlags m_sandboxFlags;
};
inline HTMLFrameOwnerElement* toHTMLFrameOwnerElement(Node* node)
{
ASSERT_WITH_SECURITY_IMPLICATION(!node || node->isFrameOwnerElement());
return static_cast<HTMLFrameOwnerElement*>(node);
}
class SubframeLoadingDisabler {
public:
explicit SubframeLoadingDisabler(Node* root)
: m_root(root)
{
disabledSubtreeRoots().add(m_root);
}
~SubframeLoadingDisabler()
{
disabledSubtreeRoots().remove(m_root);
}
static bool canLoadFrame(HTMLFrameOwnerElement* owner)
{
for (Node* node = owner; node; node = node->parentOrShadowHostNode()) {
if (disabledSubtreeRoots().contains(node))
return false;
}
return true;
}
private:
static HashCountedSet<Node*>& disabledSubtreeRoots()
{
DEFINE_STATIC_LOCAL(HashCountedSet<Node*>, nodes, ());
return nodes;
}
Node* m_root;
};
} // namespace WebCore
#endif // HTMLFrameOwnerElement_h