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// 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 CHROME_BROWSER_COPRESENCE_CHROME_WHISPERNET_CLIENT_H_
#define CHROME_BROWSER_COPRESENCE_CHROME_WHISPERNET_CLIENT_H_
#include <string>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/scoped_vector.h"
#include "chrome/browser/copresence/chrome_whispernet_config.h"
#include "components/audio_modem/public/whispernet_client.h"
namespace content {
class BrowserContext;
}
namespace extensions {
struct Event;
class EventRouter;
namespace api {
namespace copresence_private {
struct AudioParameters;
}
}
} // namespace extensions
namespace media {
class AudioBusRefCounted;
}
// This class is responsible for communication with our whispernet_proxy
// extension that talks to the whispernet audio library.
class ChromeWhispernetClient final : public audio_modem::WhispernetClient {
public:
// The browser context needs to outlive this class.
explicit ChromeWhispernetClient(content::BrowserContext* browser_context);
~ChromeWhispernetClient() override;
// WhispernetClient overrides:
void Initialize(const audio_modem::SuccessCallback& init_callback) override;
void EncodeToken(const std::string& token_str,
audio_modem::AudioType type,
const audio_modem::TokenParameters token_params[2]) override;
void DecodeSamples(
audio_modem::AudioType type,
const std::string& samples,
const audio_modem::TokenParameters token_params[2]) override;
void RegisterTokensCallback(
const audio_modem::TokensCallback& tokens_callback) override;
void RegisterSamplesCallback(
const audio_modem::SamplesCallback& samples_callback) override;
audio_modem::TokensCallback GetTokensCallback() override;
audio_modem::SamplesCallback GetSamplesCallback() override;
audio_modem::SuccessCallback GetInitializedCallback() override;
static const char kWhispernetProxyExtensionId[];
private:
// Fire an event to configure whispernet with the given audio parameters.
void AudioConfiguration(const AudioParamData& params);
void SendEventIfLoaded(scoped_ptr<extensions::Event> event);
// This gets called when the proxy extension loads.
void OnExtensionLoaded(bool success);
content::BrowserContext* const browser_context_;
extensions::EventRouter* const event_router_;
std::string client_id_;
audio_modem::SuccessCallback extension_loaded_callback_;
audio_modem::SuccessCallback init_callback_;
audio_modem::TokensCallback tokens_callback_;
audio_modem::SamplesCallback samples_callback_;
ScopedVector<extensions::Event> queued_events_;
bool extension_loaded_;
DISALLOW_COPY_AND_ASSIGN(ChromeWhispernetClient);
};
#endif // CHROME_BROWSER_COPRESENCE_CHROME_WHISPERNET_CLIENT_H_
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