components/view_manager/native_viewport/native_viewport_impl.h

   1 // Copyright 2014 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_NATIVE_VIEWPORT_NATIVE_VIEWPORT_IMPL_H_
   6 #define COMPONENTS_VIEW_MANAGER_NATIVE_VIEWPORT_NATIVE_VIEWPORT_IMPL_H_
   7
   8 #include <set>
   9
  10 #include "base/macros.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "components/view_manager/native_viewport/onscreen_context_provider.h"
  13 #include "components/view_manager/native_viewport/platform_viewport.h"
  14 #include "components/view_manager/public/interfaces/gpu.mojom.h"
  15 #include "components/view_manager/public/interfaces/native_viewport.mojom.h"
  16 #include "mojo/application/public/cpp/app_lifetime_helper.h"
  17 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
  18 #include "ui/gfx/geometry/rect.h"
  19
  20 namespace gles2 {
  21 class GpuState;
  22 }
  23
  24 namespace ui {
  25 class Event;
  26 }
  27
  28 namespace native_viewport {
  29
  30 // A NativeViewportImpl is bound to a message pipe and to a PlatformViewport.
  31 // The NativeViewportImpl's lifetime ends when either the message pipe is closed
  32 // or the PlatformViewport informs the NativeViewportImpl that it has been
  33 // destroyed.
  34 class NativeViewportImpl : public mojo::NativeViewport,
  35                            public PlatformViewport::Delegate,
  36                            public mojo::ErrorHandler {
  37  public:
  38   NativeViewportImpl(bool is_headless,
  39                      const scoped_refptr<gles2::GpuState>& gpu_state,
  40                      mojo::InterfaceRequest<mojo::NativeViewport> request,
  41                      scoped_ptr<mojo::AppRefCount> app_refcount);
  42   ~NativeViewportImpl() override;
  43
  44   // NativeViewport implementation.
  45   void Create(mojo::SizePtr size, const CreateCallback& callback) override;
  46   void RequestMetrics(const RequestMetricsCallback& callback) override;
  47   void Show() override;
  48   void Hide() override;
  49   void Close() override;
  50   void SetSize(mojo::SizePtr size) override;
  51   void GetContextProvider(
  52       mojo::InterfaceRequest<mojo::ContextProvider> request) override;
  53   void SetEventDispatcher(
  54       mojo::NativeViewportEventDispatcherPtr dispatcher) override;
  55
  56   // PlatformViewport::Delegate implementation.
  57   void OnMetricsChanged(mojo::ViewportMetricsPtr metrics) override;
  58   void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget,
  59                                     float device_pixel_ratio) override;
  60   void OnAcceleratedWidgetDestroyed() override;
  61   bool OnEvent(mojo::EventPtr event) override;
  62   void OnDestroyed() override;
  63
  64   // mojo::ErrorHandler implementation.
  65   void OnConnectionError() override;
  66
  67  private:
  68   // Callback when the dispatcher has processed a message we're waiting on
  69   // an ack from. |pointer_id| identifies the pointer the message was associated
  70   // with.
  71   void AckEvent(int32 pointer_id);
  72
  73   bool is_headless_;
  74   scoped_ptr<mojo::AppRefCount> app_refcount_;
  75   scoped_ptr<PlatformViewport> platform_viewport_;
  76   scoped_ptr<OnscreenContextProvider> context_provider_;
  77   bool sent_metrics_;
  78   mojo::ViewportMetricsPtr metrics_;
  79   CreateCallback create_callback_;
  80   RequestMetricsCallback metrics_callback_;
  81   mojo::NativeViewportEventDispatcherPtr event_dispatcher_;
  82   mojo::Binding<mojo::NativeViewport> binding_;
  83
  84   // Set of pointer_ids we've sent a move to and are waiting on an ack.
  85   std::set<int32> pointers_waiting_on_ack_;
  86
  87   base::WeakPtrFactory<NativeViewportImpl> weak_factory_;
  88
  89   DISALLOW_COPY_AND_ASSIGN(NativeViewportImpl);
  90 };
  91
  92 }  // namespace native_viewport
  93
  94 #endif  // COMPONENTS_VIEW_MANAGER_NATIVE_VIEWPORT_NATIVE_VIEWPORT_IMPL_H_