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mojo/services/native_viewport/native_viewport_impl.h

Index: mojo/services/native_viewport/native_viewport_impl.h
diff --git a/mojo/services/native_viewport/native_viewport_impl.h b/mojo/services/native_viewport/native_viewport_impl.h
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+// 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 SERVICES_NATIVE_VIEWPORT_NATIVE_VIEWPORT_IMPL_H_
+#define SERVICES_NATIVE_VIEWPORT_NATIVE_VIEWPORT_IMPL_H_
+
+#include <set>
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "mojo/services/native_viewport/onscreen_context_provider.h"
+#include "mojo/services/native_viewport/platform_viewport.h"
+#include "third_party/mojo_services/src/gpu/public/interfaces/gpu.mojom.h"
+#include "third_party/mojo_services/src/native_viewport/public/interfaces/native_viewport.mojom.h"
+#include "ui/gfx/geometry/rect.h"
+
+namespace gles2 {
+class GpuState;
+}
+
+namespace ui {
+class Event;
+}
+
+namespace native_viewport {
+
+// A NativeViewportImpl is bound to a message pipe and to a PlatformViewport.
+// The NativeViewportImpl's lifetime ends when either the message pipe is closed
+// or the PlatformViewport informs the NativeViewportImpl that it has been
+// destroyed.
+class NativeViewportImpl : public mojo::NativeViewport,
+                           public PlatformViewport::Delegate,
+                           public mojo::ErrorHandler {
+ public:
+  NativeViewportImpl(bool is_headless,
+                     const scoped_refptr<gles2::GpuState>& gpu_state,
+                     mojo::InterfaceRequest<mojo::NativeViewport> request);
+  ~NativeViewportImpl() override;
+
+  // NativeViewport implementation.
+  void Create(mojo::SizePtr size, const CreateCallback& callback) override;
+  void RequestMetrics(const RequestMetricsCallback& callback) override;
+  void Show() override;
+  void Hide() override;
+  void Close() override;
+  void SetSize(mojo::SizePtr size) override;
+  void GetContextProvider(
+      mojo::InterfaceRequest<mojo::ContextProvider> request) override;
+  void SetEventDispatcher(
+      mojo::NativeViewportEventDispatcherPtr dispatcher) override;
+
+  // PlatformViewport::Delegate implementation.
+  void OnMetricsChanged(mojo::ViewportMetricsPtr metrics) override;
+  void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget) override;
+  void OnAcceleratedWidgetDestroyed() override;
+  bool OnEvent(mojo::EventPtr event) override;
+  void OnDestroyed() override;
+
+  // mojo::ErrorHandler implementation.
+  void OnConnectionError() override;
+
+ private:
+  // Callback when the dispatcher has processed a message we're waiting on
+  // an ack from. |pointer_id| identifies the pointer the message was associated
+  // with.
+  void AckEvent(int32 pointer_id);
+
+  bool is_headless_;
+  scoped_ptr<PlatformViewport> platform_viewport_;
+  OnscreenContextProvider context_provider_;
+  bool sent_metrics_;
+  mojo::ViewportMetricsPtr metrics_;
+  CreateCallback create_callback_;
+  RequestMetricsCallback metrics_callback_;
+  mojo::NativeViewportEventDispatcherPtr event_dispatcher_;
+  mojo::Binding<mojo::NativeViewport> binding_;
+
+  // Set of pointer_ids we've sent a move to and are waiting on an ack.
+  std::set<int32> pointers_waiting_on_ack_;
+
+  base::WeakPtrFactory<NativeViewportImpl> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(NativeViewportImpl);
+};
+
+}  // namespace native_viewport
+
+#endif  // SERVICES_NATIVE_VIEWPORT_NATIVE_VIEWPORT_IMPL_H_