src/chrome/browser/sync/sessions/session_data_type_controller.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/sync/sessions/session_data_type_controller.h"
   6
   7 #include "chrome/browser/chrome_notification_types.h"
   8 #include "chrome/browser/profiles/profile.h"
   9 #include "chrome/browser/sync/glue/chrome_report_unrecoverable_error.h"
  10 #include "chrome/browser/sync/glue/synced_window_delegate.h"
  11 #include "chrome/browser/sync/sessions/synced_window_delegates_getter.h"
  12 #include "content/public/browser/browser_thread.h"
  13 #include "content/public/browser/notification_details.h"
  14 #include "content/public/browser/notification_service.h"
  15 #include "content/public/browser/notification_source.h"
  16
  17 using content::BrowserThread;
  18
  19 namespace browser_sync {
  20
  21 SessionDataTypeController::SessionDataTypeController(
  22     sync_driver::SyncApiComponentFactory* sync_factory,
  23     Profile* profile,
  24     SyncedWindowDelegatesGetter* synced_window_getter,
  25     LocalDeviceInfoProvider* local_device)
  26     : UIDataTypeController(
  27           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI),
  28           base::Bind(&ChromeReportUnrecoverableError),
  29           syncer::SESSIONS,
  30           sync_factory),
  31       profile_(profile),
  32       synced_window_getter_(synced_window_getter),
  33       local_device_(local_device),
  34       waiting_on_session_restore_(false),
  35       waiting_on_local_device_info_(false) {
  36   DCHECK(local_device_);
  37 }
  38
  39 SessionDataTypeController::~SessionDataTypeController() {}
  40
  41 bool SessionDataTypeController::StartModels() {
  42   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
  43   std::set<browser_sync::SyncedWindowDelegate*> window =
  44       synced_window_getter_->GetSyncedWindowDelegates();
  45   for (std::set<browser_sync::SyncedWindowDelegate*>::const_iterator i =
  46       window.begin(); i != window.end(); ++i) {
  47     if ((*i)->IsSessionRestoreInProgress()) {
  48       notification_registrar_.Add(
  49           this,
  50           chrome::NOTIFICATION_SESSION_RESTORE_COMPLETE,
  51           content::Source<Profile>(profile_));
  52       waiting_on_session_restore_ = true;
  53       break;
  54     }
  55   }
  56
  57   if (!local_device_->GetLocalDeviceInfo()) {
  58     subscription_ = local_device_->RegisterOnInitializedCallback(
  59         base::Bind(&SessionDataTypeController::OnLocalDeviceInfoInitialized,
  60                    this));
  61     waiting_on_local_device_info_ = true;
  62   }
  63
  64   return !IsWaiting();
  65 }
  66
  67 void SessionDataTypeController::StopModels() {
  68   notification_registrar_.RemoveAll();
  69 }
  70
  71 bool SessionDataTypeController::IsWaiting() {
  72   return waiting_on_session_restore_ || waiting_on_local_device_info_;
  73 }
  74
  75 void SessionDataTypeController::MaybeCompleteLoading() {
  76   if (state_ == MODEL_STARTING && !IsWaiting()) {
  77     OnModelLoaded();
  78   }
  79 }
  80
  81 void SessionDataTypeController::Observe(
  82     int type,
  83     const content::NotificationSource& source,
  84     const content::NotificationDetails& details) {
  85   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
  86   DCHECK_EQ(chrome::NOTIFICATION_SESSION_RESTORE_COMPLETE, type);
  87   DCHECK_EQ(profile_, content::Source<Profile>(source).ptr());
  88   notification_registrar_.RemoveAll();
  89
  90   waiting_on_session_restore_ = false;
  91   MaybeCompleteLoading();
  92 }
  93
  94 void SessionDataTypeController::OnLocalDeviceInfoInitialized() {
  95   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  96   subscription_.reset();
  97
  98   waiting_on_local_device_info_ = false;
  99   MaybeCompleteLoading();
 100 }
 101
 102 }  // namespace browser_sync