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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 CLOUD_PRINT_GCP20_PROTOTYPE_CLOUD_PRINT_XMPP_LISTENER_H_
#define CLOUD_PRINT_GCP20_PROTOTYPE_CLOUD_PRINT_XMPP_LISTENER_H_
#include <string>
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "jingle/notifier/listener/push_client_observer.h"
namespace base {
class SingleThreadTaskRunner;
} // namespace base
namespace net {
class URLRequestContextGetter;
} // namespace net
namespace notifier {
class PushClient;
} // namespace notifier
class CloudPrintXmppListener
: public base::SupportsWeakPtr<CloudPrintXmppListener>,
public notifier::PushClientObserver {
public:
class Delegate {
public:
virtual ~Delegate() {}
// Invoked when XMPP connection was established.
virtual void OnXmppConnected() = 0;
// Invoked when server rejected our credentials.
virtual void OnXmppAuthError() = 0;
// Invoked when server is unavailable.
virtual void OnXmppNetworkError() = 0;
// Invoked when new printjob was received.
virtual void OnXmppNewPrintJob(const std::string& device_id) = 0;
// Invoked when local settings was updated.
virtual void OnXmppNewLocalSettings(const std::string& device_id) = 0;
// Invoked when printer was deleted from the server.
virtual void OnXmppDeleteNotification(const std::string& device_id) = 0;
};
CloudPrintXmppListener(
const std::string& robot_email,
int standard_ping_interval,
scoped_refptr<base::SingleThreadTaskRunner> task_runner,
Delegate* delegate);
~CloudPrintXmppListener() override;
// Connects to the server.
void Connect(const std::string& access_token);
// Update ping interval when new local_settings was received.
void set_ping_interval(int interval);
private:
// notifier::PushClientObserver methods:
void OnNotificationsEnabled() override;
void OnNotificationsDisabled(
notifier::NotificationsDisabledReason reason) override;
void OnIncomingNotification(
const notifier::Notification& notification) override;
void OnPingResponse() override;
// Stops listening and sending pings.
void Disconnect();
// Schedules ping (unless it was already scheduled).
void SchedulePing();
// Sends ping.
void SendPing();
// Checks if ping was received.
void OnPingTimeoutReached();
// Credentials:
std::string robot_email_;
std::string access_token_;
// Internal listener.
scoped_ptr<notifier::PushClient> push_client_;
// Interval between pings in regular workflow.
int standard_ping_interval_;
// Number of timeouts posted to MessageLoop. Is used for controlling "fake"
// timeout calls.
int ping_timeouts_posted_;
// Number of responses awaiting from XMPP server. Is used for controlling
// number of failed pings.
int ping_responses_pending_;
// Is used for preventing multiple pings at the moment.
bool ping_scheduled_;
scoped_refptr<net::URLRequestContextGetter> context_getter_;
Delegate* delegate_;
DISALLOW_COPY_AND_ASSIGN(CloudPrintXmppListener);
};
#endif // CLOUD_PRINT_GCP20_PROTOTYPE_CLOUD_PRINT_XMPP_LISTENER_H_
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