Refactor sync notifier out of sync api.

chrome/browser/sync/notifier/sync_notifier_impl.cc

+// Copyright (c) 2011 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/sync/notifier/sync_notifier_impl.h"
+
+#include "chrome/browser/sync/notifier/server_notifier_thread.h"
+#include "chrome/browser/sync/protocol/service_constants.h"
+#include "chrome/browser/sync/sync_constants.h"
+#include "jingle/notifier/listener/mediator_thread_impl.h"
+#include "jingle/notifier/listener/notification_constants.h"
+
+using notifier::TalkMediator;
+using notifier::TalkMediatorImpl;
+namespace sync_notifier {
+
+void SyncNotifierImpl::InitializeTalkMediator(const std::string& state,
+    const notifier::NotifierOptions& notifier_options_) {
+}
+
+SyncNotifierImpl::SyncNotifierImpl(
+    notifier::NotifierOptions* notifier_options)
+    : notifier_options_(notifier_options) { }
+
+SyncNotifierImpl::~SyncNotifierImpl() {
+  delete notifier_options_;
+}
+
+void SyncNotifierImpl::Login(
+    const std::string& email, const std::string& token,
+    const std::string& state,
+    SyncNotifierCallback* sync_notifier_callback) {
+  sync_notifier_callback_ = sync_notifier_callback;
+  if (notifier_options_->notification_method ==
+      notifier::NOTIFICATION_SERVER) {
+
+    // |talk_mediator_| takes ownership of |sync_notifier_thread_|
+    // but it is guaranteed that |sync_notifier_thread_| is destroyed only
+    // when |talk_mediator_| is (see the comments in talk_mediator.h).
+    server_notifier_thread_ = new sync_notifier::ServerNotifierThread(
+        *notifier_options_, state, this);
+    talk_mediator_.reset(
+        new TalkMediatorImpl(server_notifier_thread_,
+                             notifier_options_->invalidate_xmpp_login,
+                             notifier_options_->allow_insecure_connection));
+
+    // Since we may be initialized more than once, make sure that any
+    // newly created server notifier thread has the latest enabled types.
+    server_notifier_thread_->UpdateEnabledTypes(enabled_types_);
+  } else {
+    notifier::MediatorThread* mediator_thread =
+        new notifier::MediatorThreadImpl(*notifier_options_);
+    talk_mediator_.reset(
+        new TalkMediatorImpl(mediator_thread,
+                             notifier_options_->invalidate_xmpp_login,
+                             notifier_options_->allow_insecure_connection));
+    talk_mediator_->AddSubscribedServiceUrl(browser_sync::kSyncServiceUrl);
+    server_notifier_thread_ = NULL;
+  }
+  talk_mediator()->SetDelegate(this);
+  talk_mediator()->SetAuthToken(email, token, SYNC_SERVICE_NAME);
+  talk_mediator()->Login();
+}
+
+void SyncNotifierImpl::UpdateEnabledTypes(const syncable::ModelTypeSet& types) {
+  enabled_types_ = types;
+  if (server_notifier_thread_ != NULL) {
+    server_notifier_thread_->UpdateEnabledTypes(types);
+  }
+}
+
+void SyncNotifierImpl::Logout() {
+  // We NULL out talk_mediator_ so that any pending tasks do not
+  // trigger further XMPP actions.
+  // TODO(akalin): NULL the other member variables defensively, too.
+  scoped_ptr<TalkMediator> talk_mediator(talk_mediator_.release());
+
+  // Shutdown the xmpp buzz connection.
+  if (talk_mediator.get()) {
+    VLOG(1) << "P2P: Mediator logout started.";
+    talk_mediator->Logout();
+    VLOG(1) << "P2P: Mediator logout completed.";
+    talk_mediator.reset();
+
+    // |server_notifier_thread_| is owned by |talk_mediator|. We NULL
+    // it out here so as to not have a dangling pointer.
+    server_notifier_thread_= NULL;
+    VLOG(1) << "P2P: Mediator destroyed.";
+  }
+}
+
+#if defined(UNIT_TEST)
+void SyncNotifierImpl::SendNotification() {
+  if (!talk_mediator()) {
+    VLOG(1) << "Not sending notification: shutting down (talk_mediator_ is "
+               "NULL)";
+    return;
+  }
+
+  VLOG(1) << "Sending XMPP notification...";
+  OutgoingNotificationData notification_data;
+  notification_data.service_id = browser_sync::kSyncServiceId;
+  notification_data.service_url = browser_sync::kSyncServiceUrl;
+  notification_data.send_content = true;
+  notification_data.priority = browser_sync::kSyncPriority;
+  notification_data.write_to_cache_only = true;
+  notification_data.service_specific_data =
+      browser_sync::kSyncServiceSpecificData;
+  notification_data.require_subscription = true;
+  bool success = talk_mediator()->SendNotification(notification_data);
+  if (success) {
+    notification_pending_ = false;
+    VLOG(1) << "Sent XMPP notification";
+  } else {
+    VLOG(1) << "Could not send XMPP notification";
+  }
+}
+#endif
+}  // namespace sync_notifier