// 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_LIFECYCLE_HANDLER_H_
#define EMBEDDERS_OPENGLUI_COMMON_LIFECYCLE_HANDLER_H_

class LifeCycleHandler {
  public:
    virtual int32_t OnStart() = 0;
    virtual int32_t Activate() = 0;
    virtual void Deactivate() = 0;
    virtual int32_t OnStep() = 0;
    virtual void Pause() {}
    virtual int32_t Resume() {
      return 0;
    }
    virtual void FreeAllResources() {}
    virtual void OnSaveState(void** data, size_t* size) {}
    virtual void OnConfigurationChanged() {}
    virtual void OnLowMemory() {}
    virtual ~LifeCycleHandler() {}
};

#endif  // EMBEDDERS_OPENGLUI_COMMON_LIFECYCLE_HANDLER_H_