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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.
#include "chrome/browser/extensions/api/copresence_private/copresence_private_api.h"
#include <stddef.h>
#include <map>
#include <string>
#include <vector>
#include "base/guid.h"
#include "base/lazy_instance.h"
#include "chrome/browser/copresence/chrome_whispernet_client.h"
#include "chrome/common/extensions/api/copresence_private.h"
#include "content/public/browser/browser_thread.h"
#include "media/base/audio_bus.h"
using audio_modem::WhispernetClient;
using content::BrowserThread;
namespace extensions {
namespace SendFound = api::copresence_private::SendFound;
namespace SendSamples = api::copresence_private::SendSamples;
namespace SendInitialized = api::copresence_private::SendInitialized;
namespace {
base::LazyInstance<BrowserContextKeyedAPIFactory<CopresencePrivateService>>
g_factory = LAZY_INSTANCE_INITIALIZER;
void RunInitCallback(WhispernetClient* client, bool status) {
DCHECK(client);
audio_modem::SuccessCallback init_callback =
client->GetInitializedCallback();
if (!init_callback.is_null())
init_callback.Run(status);
}
} // namespace
CopresencePrivateService::CopresencePrivateService(
content::BrowserContext* context)
: initialized_(false) {}
CopresencePrivateService::~CopresencePrivateService() {}
const std::string CopresencePrivateService::RegisterWhispernetClient(
WhispernetClient* client) {
if (initialized_)
RunInitCallback(client, true);
std::string id = base::GenerateGUID();
whispernet_clients_[id] = client;
return id;
}
void CopresencePrivateService::OnWhispernetInitialized(bool success) {
if (success)
initialized_ = true;
DVLOG(2) << "Notifying " << whispernet_clients_.size()
<< " clients that initialization is complete.";
for (auto client_entry : whispernet_clients_)
RunInitCallback(client_entry.second, success);
}
WhispernetClient* CopresencePrivateService::GetWhispernetClient(
const std::string& id) {
WhispernetClient* client = whispernet_clients_[id];
DCHECK(client);
return client;
}
// static
BrowserContextKeyedAPIFactory<CopresencePrivateService>*
CopresencePrivateService::GetFactoryInstance() {
return g_factory.Pointer();
}
template <>
void BrowserContextKeyedAPIFactory<CopresencePrivateService>
::DeclareFactoryDependencies() {
DependsOn(ExtensionsBrowserClient::Get()->GetExtensionSystemFactory());
}
// Copresence Private functions.
// CopresenceSendFoundFunction implementation:
ExtensionFunction::ResponseAction CopresencePrivateSendFoundFunction::Run() {
scoped_ptr<SendFound::Params> params(SendFound::Params::Create(*args_));
EXTENSION_FUNCTION_VALIDATE(params.get());
WhispernetClient* whispernet_client =
CopresencePrivateService::GetFactoryInstance()->Get(browser_context())
->GetWhispernetClient(params->client_id);
if (whispernet_client->GetTokensCallback().is_null())
return RespondNow(NoArguments());
std::vector<audio_modem::AudioToken> tokens;
for (size_t i = 0; i < params->tokens.size(); ++i) {
tokens.push_back(audio_modem::AudioToken(params->tokens[i].token,
params->tokens[i].audible));
}
whispernet_client->GetTokensCallback().Run(tokens);
return RespondNow(NoArguments());
}
// CopresenceSendEncodedFunction implementation:
ExtensionFunction::ResponseAction CopresencePrivateSendSamplesFunction::Run() {
scoped_ptr<SendSamples::Params> params(SendSamples::Params::Create(*args_));
EXTENSION_FUNCTION_VALIDATE(params.get());
WhispernetClient* whispernet_client =
CopresencePrivateService::GetFactoryInstance()->Get(browser_context())
->GetWhispernetClient(params->client_id);
if (whispernet_client->GetSamplesCallback().is_null())
return RespondNow(NoArguments());
scoped_refptr<media::AudioBusRefCounted> samples =
media::AudioBusRefCounted::Create(1, // Mono
params->samples.size() / sizeof(float));
memcpy(samples->channel(0), params->samples.data(), params->samples.size());
whispernet_client->GetSamplesCallback().Run(
params->token.audible ? audio_modem::AUDIBLE : audio_modem::INAUDIBLE,
params->token.token, samples);
return RespondNow(NoArguments());
}
// CopresenceSendInitializedFunction implementation:
ExtensionFunction::ResponseAction
CopresencePrivateSendInitializedFunction::Run() {
scoped_ptr<SendInitialized::Params> params(
SendInitialized::Params::Create(*args_));
EXTENSION_FUNCTION_VALIDATE(params.get());
CopresencePrivateService::GetFactoryInstance()->Get(browser_context())
->OnWhispernetInitialized(params->success);
return RespondNow(NoArguments());
}
} // namespace extensions
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