third_party/WebKit/Source/web/RemoteBridgeFrameOwner.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be found
   3 // in the LICENSE file.
   4
   5 #ifndef RemoteBridgeFrameOwner_h
   6 #define RemoteBridgeFrameOwner_h
   7
   8 #include "core/frame/FrameOwner.h"
   9 #include "web/WebLocalFrameImpl.h"
  10
  11 namespace blink {
  12
  13 // Helper class to bridge communication for a frame with a remote parent.
  14 // Currently, it serves two purposes:
  15 // 1. Allows the local frame's loader to retrieve sandbox flags associated with
  16 //    its owner element in another process.
  17 // 2. Trigger a load event on its owner element once it finishes a load.
  18 class RemoteBridgeFrameOwner final : public NoBaseWillBeGarbageCollectedFinalized<RemoteBridgeFrameOwner>, public FrameOwner {
  19     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(RemoteBridgeFrameOwner);
  20 public:
  21     static PassOwnPtrWillBeRawPtr<RemoteBridgeFrameOwner> create(PassRefPtrWillBeRawPtr<WebLocalFrameImpl> frame, SandboxFlags flags)
  22     {
  23         return adoptPtrWillBeNoop(new RemoteBridgeFrameOwner(frame, flags));
  24     }
  25
  26     bool isLocal() const override
  27     {
  28         return false;
  29     }
  30
  31     SandboxFlags sandboxFlags() const override
  32     {
  33         return m_sandboxFlags;
  34     }
  35
  36     void setSandboxFlags(SandboxFlags flags)
  37     {
  38         m_sandboxFlags = flags;
  39     }
  40
  41     void setContentFrame(PassRefPtrWillBeRawPtr<WebLocalFrameImpl> frame)
  42     {
  43         m_frame = frame;
  44     }
  45
  46     void dispatchLoad() override;
  47
  48     void renderFallbackContent() override
  49     {
  50         // TODO(dcheng): Implement.
  51     }
  52
  53     DECLARE_VIRTUAL_TRACE();
  54
  55 private:
  56     RemoteBridgeFrameOwner(PassRefPtrWillBeRawPtr<WebLocalFrameImpl>, SandboxFlags);
  57
  58     RefPtrWillBeMember<WebLocalFrameImpl> m_frame;
  59     SandboxFlags m_sandboxFlags;
  60 };
  61
  62 DEFINE_TYPE_CASTS(RemoteBridgeFrameOwner, FrameOwner, owner, !owner->isLocal(), !owner.isLocal());
  63
  64 } // namespace blink
  65
  66 #endif // RemoteBridgeFrameOwner_h