Refactored OpenGL embedder that works on Android, Mac or Linux.

runtime/embedders/openglui/common/dart_host.h

+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#ifndef EMBEDDERS_OPENGLUI_COMMON_DART_HOST_H_
+#define EMBEDDERS_OPENGLUI_COMMON_DART_HOST_H_
+
+#include "embedders/openglui/common/context.h"
+#include "embedders/openglui/common/graphics_handler.h"
+#include "embedders/openglui/common/input_handler.h"
+#include "embedders/openglui/common/lifecycle_handler.h"
+#include "embedders/openglui/common/sound_handler.h"
+#include "embedders/openglui/common/timer.h"
+#include "embedders/openglui/common/vm_glue.h"
+#include "include/dart_api.h"
+
+// Currently the life cycle management is very crude. We conservatively
+// shutdown the main isolate when we lose focus and create a new one when
+// we resume. This needs to be improved later when we understand this better,
+// and we need some hooks to tell the Dart script to save/restore state
+// (and an API that will support that).
+
+class DartHost : public LifeCycleHandler {
+ public:
+  explicit DartHost(Context* context);
+  virtual ~DartHost();
+
+  void OnStart();
+  void OnResume();
+  void OnPause();
+  void OnStop();
+  void OnDestroy();
+  void OnSaveState(void** data, size_t* size);
+  void OnConfigurationChanged();
+  void OnLowMemory();
+  void OnCreateWindow();
+  void OnDestroyWindow();
+  void OnGainedFocus();
+  void OnLostFocus();
+  int32_t OnActivate();
+  void OnDeactivate();
+  int32_t OnStep();
+
+ private:
+  void Clear();
+  int32_t Activate();
+  void Deactivate();
+
+  GraphicsHandler* graphics_handler_;
+  InputHandler* input_handler_;
+  SoundHandler* sound_handler_;
+  Timer* timer_;
+  VMGlue* vm_glue_;
+  bool active_;
+};
+
+#endif  // EMBEDDERS_OPENGLUI_COMMON_DART_HOST_H_
+