Animated Rotation

content/common/sensors_listener.h

+// Copyright (c) 2011 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 CONTENT_COMMON_SENSORS_LISTENER_H_
+#define CONTENT_COMMON_SENSORS_LISTENER_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/memory/ref_counted.h"
+#include "content/common/sensors.h"
+
+#include <string>
+
+namespace sensors {
+
+class Listener {
+ public:
+  virtual void SensorChanged(Channel channel, const std::string& data) = 0;
+
+  // TODO(cwolfe): Provide remaining events
+  // virtual void SensorUpdated(Channel channel, const std::string& data) = 0;
+  // virtual void SensorPaused(Channel channel) = 0;
+  // virtual void SensorStopped(Channel channel) = 0;
+
+ protected:
+  Listener() {}
+  virtual ~Listener() {}
+
+  DISALLOW_COPY_AND_ASSIGN(Listener);
+};
+
+class Connection : public base::RefCountedThreadSafe<Connection> {
+ public:
+  virtual void Start(Channel channel, const std::string& data) = 0;
+  virtual void Stop(Channel channel)  = 0;
+  virtual void Close() = 0;
+
+ protected:
+  Connection() {};
+  virtual ~Connection() {};
+  friend class base::RefCountedThreadSafe<Connection>;
+
+  DISALLOW_COPY_AND_ASSIGN(Connection);
+};
+
+}  // namespace sensors
+
+#endif  // CONTENT_COMMON_SENSORS_LISTENER_H_