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// Copyright 2013 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 MEDIA_AUDIO_SOUNDS_SOUNDS_MANAGER_H_
#define MEDIA_AUDIO_SOUNDS_SOUNDS_MANAGER_H_
#include "base/basictypes.h"
#include "base/containers/hash_tables.h"
#include "base/strings/string_piece.h"
#include "base/threading/non_thread_safe.h"
#include "base/time/time.h"
#include "media/base/media_export.h"
namespace media {
// This class is used for reproduction of system sounds. All methods
// should be accessed from the Audio thread.
class MEDIA_EXPORT SoundsManager : public base::NonThreadSafe {
public:
typedef int SoundKey;
// Creates a singleton instance of the SoundsManager.
static void Create();
// Removes a singleton instance of the SoundsManager.
static void Shutdown();
// Returns a pointer to a singleton instance of the SoundsManager.
static SoundsManager* Get();
// Initializes SoundsManager with the wav data for the system
// sounds. Returns true if SoundsManager was successfully
// initialized.
virtual bool Initialize(SoundKey key, const base::StringPiece& data) = 0;
// Plays sound identified by |key|, returns false if SoundsManager
// was not properly initialized.
virtual bool Play(SoundKey key) = 0;
// Returns duration of the sound identified by |key|. If SoundsManager
// was not properly initialized or |key| was not registered, this
// method returns an empty value.
virtual base::TimeDelta GetDuration(SoundKey key) = 0;
protected:
SoundsManager();
virtual ~SoundsManager();
private:
DISALLOW_COPY_AND_ASSIGN(SoundsManager);
};
} // namespace media
#endif // MEDIA_AUDIO_SOUNDS_SOUNDS_MANAGER_H_
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