| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef FrameOwner_h |
| #define FrameOwner_h |
| |
| #include "core/CoreExport.h" |
| #include "core/dom/SandboxFlags.h" |
| #include "platform/heap/Handle.h" |
| #include "platform/scroll/ScrollTypes.h" |
| |
| namespace blink { |
| |
| // Oilpan: all FrameOwner instances are GCed objects. FrameOwner additionally |
| // derives from GarbageCollectedMixin so that Member<FrameOwner> references can |
| // be kept (e.g., Frame::m_owner.) |
| class CORE_EXPORT FrameOwner : public WillBeGarbageCollectedMixin { |
| public: |
| virtual ~FrameOwner() { } |
| DEFINE_INLINE_VIRTUAL_TRACE() { } |
| |
| virtual bool isLocal() const = 0; |
| |
| virtual SandboxFlags sandboxFlags() const = 0; |
| virtual void dispatchLoad() = 0; |
| |
| // On load failure, a frame can ask its owner to render fallback content |
| // which replaces the frame contents. |
| virtual void renderFallbackContent() = 0; |
| |
| virtual ScrollbarMode scrollingMode() const = 0; |
| virtual int marginWidth() const = 0; |
| virtual int marginHeight() const = 0; |
| }; |
| |
| } // namespace blink |
| |
| #endif // FrameOwner_h |
