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// Copyright (c) 2012 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 "jingle/notifier/listener/non_blocking_push_client.h"
#include "base/bind.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/message_loop/message_loop_proxy.h"
#include "jingle/notifier/listener/push_client_observer.h"
namespace notifier {
// All methods are called on the delegate thread unless specified
// otherwise.
class NonBlockingPushClient::Core
: public base::RefCountedThreadSafe<NonBlockingPushClient::Core>,
public PushClientObserver {
public:
// Called on the parent thread.
explicit Core(
const scoped_refptr<base::SingleThreadTaskRunner>&
delegate_task_runner,
const base::WeakPtr<NonBlockingPushClient>& parent_push_client);
// Must be called after being created.
//
// This is separated out from the constructor since posting tasks
// from the constructor is dangerous.
void CreateOnDelegateThread(
const CreateBlockingPushClientCallback&
create_blocking_push_client_callback);
// Must be called before being destroyed.
void DestroyOnDelegateThread();
void UpdateSubscriptions(const SubscriptionList& subscriptions);
void UpdateCredentials(const std::string& email, const std::string& token);
void SendNotification(const Notification& data);
void SendPing();
virtual void OnNotificationsEnabled() OVERRIDE;
virtual void OnNotificationsDisabled(
NotificationsDisabledReason reason) OVERRIDE;
virtual void OnIncomingNotification(
const Notification& notification) OVERRIDE;
virtual void OnPingResponse() OVERRIDE;
private:
friend class base::RefCountedThreadSafe<NonBlockingPushClient::Core>;
// Called on either the parent thread or the delegate thread.
virtual ~Core();
const scoped_refptr<base::SingleThreadTaskRunner> parent_task_runner_;
const scoped_refptr<base::SingleThreadTaskRunner> delegate_task_runner_;
const base::WeakPtr<NonBlockingPushClient> parent_push_client_;
scoped_ptr<PushClient> delegate_push_client_;
DISALLOW_COPY_AND_ASSIGN(Core);
};
NonBlockingPushClient::Core::Core(
const scoped_refptr<base::SingleThreadTaskRunner>& delegate_task_runner,
const base::WeakPtr<NonBlockingPushClient>& parent_push_client)
: parent_task_runner_(base::MessageLoopProxy::current()),
delegate_task_runner_(delegate_task_runner),
parent_push_client_(parent_push_client) {}
NonBlockingPushClient::Core::~Core() {
DCHECK(parent_task_runner_->BelongsToCurrentThread() ||
delegate_task_runner_->BelongsToCurrentThread());
DCHECK(!delegate_push_client_.get());
}
void NonBlockingPushClient::Core::CreateOnDelegateThread(
const CreateBlockingPushClientCallback&
create_blocking_push_client_callback) {
DCHECK(delegate_task_runner_->BelongsToCurrentThread());
DCHECK(!delegate_push_client_.get());
delegate_push_client_ = create_blocking_push_client_callback.Run();
delegate_push_client_->AddObserver(this);
}
void NonBlockingPushClient::Core::DestroyOnDelegateThread() {
DCHECK(delegate_task_runner_->BelongsToCurrentThread());
DCHECK(delegate_push_client_.get());
delegate_push_client_->RemoveObserver(this);
delegate_push_client_.reset();
}
void NonBlockingPushClient::Core::UpdateSubscriptions(
const SubscriptionList& subscriptions) {
DCHECK(delegate_task_runner_->BelongsToCurrentThread());
DCHECK(delegate_push_client_.get());
delegate_push_client_->UpdateSubscriptions(subscriptions);
}
void NonBlockingPushClient::Core::UpdateCredentials(
const std::string& email, const std::string& token) {
DCHECK(delegate_task_runner_->BelongsToCurrentThread());
DCHECK(delegate_push_client_.get());
delegate_push_client_->UpdateCredentials(email, token);
}
void NonBlockingPushClient::Core::SendNotification(
const Notification& notification) {
DCHECK(delegate_task_runner_->BelongsToCurrentThread());
DCHECK(delegate_push_client_.get());
delegate_push_client_->SendNotification(notification);
}
void NonBlockingPushClient::Core::SendPing() {
DCHECK(delegate_task_runner_->BelongsToCurrentThread());
DCHECK(delegate_push_client_.get());
delegate_push_client_->SendPing();
}
void NonBlockingPushClient::Core::OnNotificationsEnabled() {
DCHECK(delegate_task_runner_->BelongsToCurrentThread());
parent_task_runner_->PostTask(
FROM_HERE,
base::Bind(&NonBlockingPushClient::OnNotificationsEnabled,
parent_push_client_));
}
void NonBlockingPushClient::Core::OnNotificationsDisabled(
NotificationsDisabledReason reason) {
DCHECK(delegate_task_runner_->BelongsToCurrentThread());
parent_task_runner_->PostTask(
FROM_HERE,
base::Bind(&NonBlockingPushClient::OnNotificationsDisabled,
parent_push_client_, reason));
}
void NonBlockingPushClient::Core::OnIncomingNotification(
const Notification& notification) {
DCHECK(delegate_task_runner_->BelongsToCurrentThread());
parent_task_runner_->PostTask(
FROM_HERE,
base::Bind(&NonBlockingPushClient::OnIncomingNotification,
parent_push_client_, notification));
}
void NonBlockingPushClient::Core::OnPingResponse() {
DCHECK(delegate_task_runner_->BelongsToCurrentThread());
parent_task_runner_->PostTask(
FROM_HERE,
base::Bind(&NonBlockingPushClient::OnPingResponse,
parent_push_client_));
}
NonBlockingPushClient::NonBlockingPushClient(
const scoped_refptr<base::SingleThreadTaskRunner>& delegate_task_runner,
const CreateBlockingPushClientCallback&
create_blocking_push_client_callback)
: weak_ptr_factory_(this),
delegate_task_runner_(delegate_task_runner),
core_(new Core(delegate_task_runner_,
weak_ptr_factory_.GetWeakPtr())) {
delegate_task_runner_->PostTask(
FROM_HERE,
base::Bind(&NonBlockingPushClient::Core::CreateOnDelegateThread,
core_.get(), create_blocking_push_client_callback));
}
NonBlockingPushClient::~NonBlockingPushClient() {
DCHECK(thread_checker_.CalledOnValidThread());
delegate_task_runner_->PostTask(
FROM_HERE,
base::Bind(&NonBlockingPushClient::Core::DestroyOnDelegateThread,
core_.get()));
}
void NonBlockingPushClient::AddObserver(PushClientObserver* observer) {
DCHECK(thread_checker_.CalledOnValidThread());
observers_.AddObserver(observer);
}
void NonBlockingPushClient::RemoveObserver(PushClientObserver* observer) {
DCHECK(thread_checker_.CalledOnValidThread());
observers_.RemoveObserver(observer);
}
void NonBlockingPushClient::UpdateSubscriptions(
const SubscriptionList& subscriptions) {
DCHECK(thread_checker_.CalledOnValidThread());
delegate_task_runner_->PostTask(
FROM_HERE,
base::Bind(&NonBlockingPushClient::Core::UpdateSubscriptions,
core_.get(), subscriptions));
}
void NonBlockingPushClient::UpdateCredentials(
const std::string& email, const std::string& token) {
DCHECK(thread_checker_.CalledOnValidThread());
delegate_task_runner_->PostTask(
FROM_HERE,
base::Bind(&NonBlockingPushClient::Core::UpdateCredentials,
core_.get(), email, token));
}
void NonBlockingPushClient::SendNotification(
const Notification& notification) {
DCHECK(thread_checker_.CalledOnValidThread());
delegate_task_runner_->PostTask(
FROM_HERE,
base::Bind(&NonBlockingPushClient::Core::SendNotification, core_.get(),
notification));
}
void NonBlockingPushClient::SendPing() {
DCHECK(thread_checker_.CalledOnValidThread());
delegate_task_runner_->PostTask(
FROM_HERE,
base::Bind(&NonBlockingPushClient::Core::SendPing, core_.get()));
}
void NonBlockingPushClient::OnNotificationsEnabled() {
DCHECK(thread_checker_.CalledOnValidThread());
FOR_EACH_OBSERVER(PushClientObserver, observers_,
OnNotificationsEnabled());
}
void NonBlockingPushClient::OnNotificationsDisabled(
NotificationsDisabledReason reason) {
DCHECK(thread_checker_.CalledOnValidThread());
FOR_EACH_OBSERVER(PushClientObserver, observers_,
OnNotificationsDisabled(reason));
}
void NonBlockingPushClient::OnIncomingNotification(
const Notification& notification) {
DCHECK(thread_checker_.CalledOnValidThread());
FOR_EACH_OBSERVER(PushClientObserver, observers_,
OnIncomingNotification(notification));
}
void NonBlockingPushClient::OnPingResponse() {
DCHECK(thread_checker_.CalledOnValidThread());
FOR_EACH_OBSERVER(PushClientObserver, observers_, OnPingResponse());
}
} // namespace notifier
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