Mojo surfaces service and example app

mojo/examples/surfaces_app/child_impl.h

+// 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 MOJO_EXAMPLES_SURFACES_APP_CHILD_IMPL_H_
+#define MOJO_EXAMPLES_SURFACES_APP_CHILD_IMPL_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "cc/surfaces/surface_id.h"
+#include "cc/surfaces/surface_id_allocator.h"
+#include "mojo/examples/surfaces_app/child.mojom.h"
+#include "mojo/public/cpp/bindings/string.h"
+#include "mojo/services/public/interfaces/surfaces/surface_id.mojom.h"
+#include "mojo/services/public/interfaces/surfaces/surfaces.mojom.h"
+#include "third_party/skia/include/core/SkColor.h"
+#include "ui/gfx/size.h"
+
+namespace cc {
+class CompositorFrame;
+}
+
+namespace mojo {
+
+class ApplicationConnection;
+
+namespace surfaces {
+class Surface;
+}
+
+namespace examples {
+
+class SurfaceClientImpl;
+
+// Simple example of a child app using surfaces.
+class ChildImpl : public InterfaceImpl<Child> {
+ public:
+  class Context {
+   public:
+    virtual ApplicationConnection* ShellConnection(
+        const mojo::String& application_url) = 0;
+  };
+  ChildImpl(ApplicationConnection* connection, Context* context);
+  virtual ~ChildImpl();
+
+  void SetIdNamespace(uint32_t id_namespace);
+
+ private:
+  // Child implementation.
+  virtual void ProduceFrame(
+      surfaces::ColorPtr color,
+      SizePtr size,
+      const mojo::Callback<void(surfaces::SurfaceIdPtr id)>& callback) OVERRIDE;
+
+  void Draw();
+
+  SkColor color_;
+  gfx::Size size_;
+  scoped_ptr<cc::SurfaceIdAllocator> allocator_;
+  surfaces::SurfacePtr surface_;
+  cc::SurfaceId id_;
+  scoped_ptr<SurfaceClientImpl> surface_client_;
+  mojo::Callback<void(surfaces::SurfaceIdPtr id)> produce_callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChildImpl);
+};
+
+}  // namespace examples
+}  // namespace mojo
+
+#endif  // MOJO_EXAMPLES_SURFACES_APP_CHILD_IMPL_H_