contacts: Add ContactManager.

chrome/browser/chromeos/contacts/contact_manager.cc

+// 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 "chrome/browser/chromeos/contacts/contact_manager.h"
+
+#include "base/logging.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/contacts/contact.pb.h"
+#include "chrome/browser/chromeos/contacts/contact_manager_observer.h"
+#include "chrome/browser/chromeos/contacts/contact_store.h"
+#include "chrome/browser/chromeos/contacts/google_contact_store.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/notification_service.h"
+
+using content::BrowserThread;
+
+namespace contacts {
+
+namespace {
+
+// Singleton instance.
+ContactManager* g_instance = NULL;
+
+}  // namespace
+
+// static
+ContactManager* ContactManager::GetInstance() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(g_instance);
+  return g_instance;
+}
+
+ContactManager::ContactManager()
+    : profile_observers_deleter_(&profile_observers_),
+      contact_store_factory_(new GoogleContactStoreFactory),
+      contact_stores_deleter_(&contact_stores_) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(!g_instance);
+  g_instance = this;
+}
+
+ContactManager::~ContactManager() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_EQ(g_instance, this);
+  g_instance = NULL;
+  for (ContactStoreMap::const_iterator it = contact_stores_.begin();
+       it != contact_stores_.end(); ++it) {
+    it->second->RemoveObserver(this);
+  }
+}
+
+void ContactManager::SetContactStoreForTesting(
+    scoped_ptr<ContactStoreFactory> factory) {
+  DCHECK(contact_stores_.empty());
+  contact_store_factory_.swap(factory);
+}
+
+void ContactManager::Init() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  registrar_.Add(
+      this,
+      chrome::NOTIFICATION_PROFILE_CREATED,
+      content::NotificationService::AllSources());
+  registrar_.Add(
+      this,
+      chrome::NOTIFICATION_PROFILE_DESTROYED,
+      content::NotificationService::AllSources());
+
+  // Notify about any already-existing profiles.
+  std::vector<Profile*> profiles(
+      g_browser_process->profile_manager()->GetLoadedProfiles());
+  for (size_t i = 0; i < profiles.size(); ++i)
+    HandleProfileCreated(profiles[i]);
+}
+
+void ContactManager::AddObserver(ContactManagerObserver* observer,
+                                 Profile* profile) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(observer);
+  DCHECK(profile);
+  Observers* observers = GetObserversForProfile(profile, true);
+  observers->AddObserver(observer);
+}
+
+void ContactManager::RemoveObserver(ContactManagerObserver* observer,
+                                    Profile* profile) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(observer);
+  DCHECK(profile);
+  Observers* observers = GetObserversForProfile(profile, false);
+  if (observers)
+    observers->RemoveObserver(observer);
+}
+
+scoped_ptr<ContactPointers> ContactManager::GetAllContacts(Profile* profile) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(profile);
+  scoped_ptr<ContactPointers> contacts(new ContactPointers);
+  ContactStoreMap::const_iterator it = contact_stores_.find(profile);
+  if (it != contact_stores_.end())
+    it->second->AppendContacts(contacts.get());
+  return contacts.Pass();
+}
+
+const Contact* ContactManager::GetContactByProviderId(
+    Profile* profile,
+    const std::string& provider_id) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(profile);
+  ContactStoreMap::const_iterator it = contact_stores_.find(profile);
+  return it != contact_stores_.end() ?
+         it->second->GetContactByProviderId(provider_id) :
+         NULL;
+}
+
+void ContactManager::OnContactsUpdated(ContactStore* store) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  for (ContactStoreMap::const_iterator it = contact_stores_.begin();
+       it != contact_stores_.end(); ++it) {
+    if (it->second == store) {
+      Profile* profile = it->first;
+      Observers* observers = GetObserversForProfile(profile, false);
+      if (observers) {
+        FOR_EACH_OBSERVER(ContactManagerObserver,
+                          *observers,
+                          OnContactsUpdated(profile));
+      }
+      return;
+    }
+  }
+  NOTREACHED() << "Got update from unknown contact store " << store;
+}
+
+void ContactManager::Observe(int type,
+                             const content::NotificationSource& source,
+                             const content::NotificationDetails& details) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  switch (type) {
+    case chrome::NOTIFICATION_PROFILE_CREATED:
+      HandleProfileCreated(content::Source<Profile>(source).ptr());
+      break;
+    case chrome::NOTIFICATION_PROFILE_DESTROYED: {
+      Profile* profile = content::Details<Profile>(details).ptr();
+      if (profile)
+        HandleProfileDestroyed(profile);
+      break;
+    }
+    default:
+      NOTREACHED() << "Unexpected notification " << type;
+  }
+}
+
+ContactManager::Observers* ContactManager::GetObserversForProfile(
+    Profile* profile,
+    bool create) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  ProfileObserversMap::const_iterator it = profile_observers_.find(profile);
+  if (it != profile_observers_.end())
+    return it->second;
+  if (!create)
+    return NULL;
+
+  Observers* observers = new Observers;
+  profile_observers_[profile] = observers;
+  return observers;
+}
+
+void ContactManager::HandleProfileCreated(Profile* profile) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(profile);
+
+  ContactStoreMap::iterator it = contact_stores_.find(profile);
+  if (it != contact_stores_.end())
+    return;
+
+  if (!contact_store_factory_->CanCreateContactStoreForProfile(profile))
+    return;
+
+  VLOG(1) << "Adding profile " << profile->GetProfileName();
+  ContactStore* store = contact_store_factory_->CreateContactStore(profile);
+  DCHECK(store);
+  store->AddObserver(this);
+  store->Init();
+  DCHECK_EQ(contact_stores_.count(profile), static_cast<size_t>(0));
+  contact_stores_[profile] = store;
+}
+
+void ContactManager::HandleProfileDestroyed(Profile* profile) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(profile);
+
+  ContactStoreMap::iterator store_it = contact_stores_.find(profile);
+  if (store_it != contact_stores_.end()) {
+    store_it->second->RemoveObserver(this);
+    delete store_it->second;
+    contact_stores_.erase(store_it);
+  }
+
+  ProfileObserversMap::iterator observer_it = profile_observers_.find(profile);
+  if (observer_it != profile_observers_.end()) {
+    delete observer_it->second;
+    profile_observers_.erase(observer_it);
+  }
+}
+
+}  // namespace contacts