components/view_manager/public/cpp/view_surface.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
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_VIEW_SURFACE_H_
   6 #define COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_VIEW_SURFACE_H_
   7
   8 #include "base/observer_list.h"
   9 #include "components/view_manager/public/interfaces/compositor_frame.mojom.h"
  10 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
  11 #include "third_party/mojo/src/mojo/public/cpp/bindings/interface_ptr_info.h"
  12
  13 namespace mojo {
  14
  15 class ViewSurfaceClient;
  16 class View;
  17
  18 // A ViewSurface is wrapper to simplify submitting CompositorFrames to Views,
  19 // and receiving ReturnedResources.
  20 class ViewSurface : public mojo::SurfaceClient {
  21  public:
  22   ~ViewSurface() override;
  23
  24   // Called to indicate that the current thread has assumed control of this
  25   // object.
  26   void BindToThread();
  27
  28
  29   // TODO(fsamuel): Add a callback.
  30   void SubmitCompositorFrame(mojo::CompositorFramePtr frame);
  31
  32   void set_client(mojo::ViewSurfaceClient* client) { client_ = client; }
  33
  34  private:
  35   friend class mojo::View;
  36
  37   ViewSurface(mojo::InterfacePtrInfo<mojo::Surface> surface_info,
  38               mojo::InterfaceRequest<mojo::SurfaceClient> client_request);
  39
  40   // SurfaceClient implementation:
  41   void ReturnResources(
  42       mojo::Array<mojo::ReturnedResourcePtr> resources) override;
  43
  44   mojo::ViewSurfaceClient* client_;
  45   mojo::InterfacePtrInfo<mojo::Surface> surface_info_;
  46   mojo::InterfaceRequest<mojo::SurfaceClient> client_request_;
  47   mojo::SurfacePtr surface_;
  48   mojo::Binding<mojo::SurfaceClient> client_binding_;
  49   bool bound_to_thread_;
  50 };
  51
  52 }  // namespace mojo
  53
  54 #endif  // COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_VIEW_SURFACE_H_