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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 COMPONENTS_COPRESENCE_HANDLERS_GCM_HANDLER_IMPL_H_
#define COMPONENTS_COPRESENCE_HANDLERS_GCM_HANDLER_IMPL_H_
#include <string>
#include <vector>
#include "base/callback_forward.h"
#include "base/cancelable_callback.h"
#include "base/macros.h"
#include "components/copresence/handlers/gcm_handler.h"
#include "components/copresence/public/copresence_constants.h"
#include "components/gcm_driver/gcm_app_handler.h"
#include "components/gcm_driver/gcm_client.h"
namespace gcm {
class GCMDriver;
}
namespace copresence {
class DirectiveHandler;
// This class handles GCM messages from the Copresence server.
class GCMHandlerImpl final : public GCMHandler,
public gcm::GCMAppHandler {
public:
// Callback to report that registration has completed.
// Returns an empty ID if registration failed.
using RegistrationCallback = base::Callback<void(const std::string&)>;
static const char kCopresenceAppId[];
static const char kCopresenceSenderId[];
static const char kGcmMessageKey[];
// |gcm_driver| is required, but may disappear if we get a ShutdownHandler()
// call first. |directive_handler| must outlive us. The caller owns both.
GCMHandlerImpl(gcm::GCMDriver* gcm_driver,
DirectiveHandler* directive_handler,
const MessagesCallback& new_messages_callback);
~GCMHandlerImpl() override;
// GCMHandler override.
void GetGcmId(const RegistrationCallback& callback) override;
private:
friend class GCMHandlerTest;
// GCMAppHandler overrides
void ShutdownHandler() override;
void OnMessage(const std::string& app_id,
const gcm::IncomingMessage& message) override;
void OnMessagesDeleted(const std::string& app_id) override;
void OnSendError(
const std::string& /* app_id */,
const gcm::GCMClient::SendErrorDetails& /* send_error_details */)
override;
void OnSendAcknowledged(const std::string& /* app_id */,
const std::string& /* message_id */) override;
bool CanHandle(const std::string& app_id) const override;
// GCM Registration has finished. Notify clients as appropriate.
void RegistrationComplete(const std::string& registration_id,
gcm::GCMClient::Result result);
gcm::GCMDriver* driver_;
DirectiveHandler* const directive_handler_;
MessagesCallback new_messages_callback_;
std::string gcm_id_;
std::vector<RegistrationCallback> pending_id_requests_;
base::CancelableCallback<void(const std::string&,
gcm::GCMClient::Result)> registration_callback_;
DISALLOW_COPY_AND_ASSIGN(GCMHandlerImpl);
};
} // namespace copresence
#endif // COMPONENTS_COPRESENCE_HANDLERS_GCM_HANDLER_IMPL_H_
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