src/ui/message_center/message_center_impl.cc

   1 // Copyright (c) 2013 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 "ui/message_center/message_center_impl.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/memory/scoped_vector.h"
  10 #include "base/observer_list.h"
  11 #include "ui/message_center/message_center_style.h"
  12 #include "ui/message_center/message_center_types.h"
  13 #include "ui/message_center/notification.h"
  14 #include "ui/message_center/notification_blocker.h"
  15 #include "ui/message_center/notification_list.h"
  16 #include "ui/message_center/notification_types.h"
  17
  18 namespace {
  19
  20 base::TimeDelta GetTimeoutForPriority(int priority) {
  21   if (priority > message_center::DEFAULT_PRIORITY) {
  22     return base::TimeDelta::FromSeconds(
  23         message_center::kAutocloseHighPriorityDelaySeconds);
  24   }
  25   return base::TimeDelta::FromSeconds(
  26       message_center::kAutocloseDefaultDelaySeconds);
  27 }
  28
  29 }  // namespace
  30
  31 namespace message_center {
  32 namespace internal {
  33
  34 // ChangeQueue keeps track of all the changes that we need to make to the
  35 // notification list once the visibility is set to VISIBILITY_TRANSIENT.
  36 class ChangeQueue {
  37  public:
  38   enum ChangeType {
  39     CHANGE_TYPE_ADD = 0,
  40     CHANGE_TYPE_UPDATE,
  41     CHANGE_TYPE_DELETE
  42   };
  43
  44   // Change represents an operation made on a notification.  Since it contains
  45   // the final state of the notification, we only keep the last change for a
  46   // particular notification that is in the notification list around.  There are
  47   // two ids; |id_| is the newest notification id that has been assigned by an
  48   // update, and |notification_list_id_| is the id of the notification it should
  49   // be updating as it exists in the notification list.
  50   class Change {
  51    public:
  52     Change(ChangeType type,
  53            const std::string& id,
  54            scoped_ptr<Notification> notification);
  55     ~Change();
  56
  57     // Used to transfer ownership of the contained notification.
  58     scoped_ptr<Notification> PassNotification();
  59
  60     Notification* notification() const { return notification_.get(); }
  61     const std::string& id() const { return id_; }
  62     ChangeType type() const { return type_; }
  63     bool by_user() const { return by_user_; }
  64     void set_by_user(bool by_user) { by_user_ = by_user; }
  65     const std::string& notification_list_id() const {
  66       return notification_list_id_;
  67     }
  68     void set_notification_list_id(const std::string& id) {
  69       notification_list_id_ = id;
  70     }
  71
  72    private:
  73     const ChangeType type_;
  74     const std::string id_;
  75     std::string notification_list_id_;
  76     bool by_user_;
  77     scoped_ptr<Notification> notification_;
  78
  79     DISALLOW_COPY_AND_ASSIGN(Change);
  80   };
  81
  82   ChangeQueue();
  83   ~ChangeQueue();
  84
  85   // Called when the message center has appropriate visibility.  Modifies
  86   // |message_center| but does not retain it.  This also causes the queue to
  87   // empty itself.
  88   void ApplyChanges(MessageCenter* message_center);
  89
  90   // Causes a TYPE_ADD change to be added to the queue.
  91   void AddNotification(scoped_ptr<Notification> notification);
  92
  93   // Causes a TYPE_UPDATE change to be added to the queue.
  94   void UpdateNotification(const std::string& old_id,
  95                           scoped_ptr<Notification> notification);
  96
  97   // Causes a TYPE_DELETE change to be added to the queue.
  98   void EraseNotification(const std::string& id, bool by_user);
  99
 100   // Returns whether the queue matches an id.  The id given will be matched
 101   // against the ID of all changes post-update, not the id of the notification
 102   // as it stands in the notification list.
 103   bool Has(const std::string& id) const;
 104
 105   // Returns a Change that can be modified by the caller.  ChangeQueue retains
 106   // ownership of the Change; pointers should not be retained.
 107   Notification* GetLatestNotification(const std::string& id) const;
 108
 109  private:
 110   void Replace(const std::string& id, scoped_ptr<Change> change);
 111
 112   ScopedVector<Change> changes_;
 113 };
 114
 115 ////////////////////////////////////////////////////////////////////////////////
 116 // ChangeFinder
 117
 118 struct ChangeFinder {
 119   explicit ChangeFinder(const std::string& id) : id(id) {}
 120   bool operator()(ChangeQueue::Change* change) { return change->id() == id; }
 121
 122   std::string id;
 123 };
 124
 125 ////////////////////////////////////////////////////////////////////////////////
 126 // ChangeQueue::Change
 127
 128 ChangeQueue::Change::Change(ChangeType type,
 129                             const std::string& id,
 130                             scoped_ptr<Notification> notification)
 131     : type_(type),
 132       id_(id),
 133       notification_list_id_(id),
 134       by_user_(false),
 135       notification_(notification.Pass()) {
 136   DCHECK(!id.empty() &&
 137          (type != CHANGE_TYPE_DELETE || notification_.get() == NULL));
 138 }
 139
 140 ChangeQueue::Change::~Change() {}
 141
 142 scoped_ptr<Notification> ChangeQueue::Change::PassNotification() {
 143   return notification_.Pass();
 144 }
 145
 146 ////////////////////////////////////////////////////////////////////////////////
 147 // ChangeQueue
 148
 149 ChangeQueue::ChangeQueue() {}
 150
 151 ChangeQueue::~ChangeQueue() {}
 152
 153 void ChangeQueue::ApplyChanges(MessageCenter* message_center) {
 154   // This method is re-entrant.
 155   while (!changes_.empty()) {
 156     ScopedVector<Change>::iterator iter = changes_.begin();
 157     scoped_ptr<Change> change(*iter);
 158     // TODO(dewittj): Replace changes_ with a deque.
 159     changes_.weak_erase(iter);
 160     // |message_center| is taking ownership of each element here.
 161     switch (change->type()) {
 162       case CHANGE_TYPE_ADD:
 163         message_center->AddNotification(change->PassNotification());
 164         break;
 165       case CHANGE_TYPE_UPDATE:
 166         message_center->UpdateNotification(change->notification_list_id(),
 167                                            change->PassNotification());
 168         break;
 169       case CHANGE_TYPE_DELETE:
 170         message_center->RemoveNotification(change->notification_list_id(),
 171                                            change->by_user());
 172         break;
 173       default:
 174         NOTREACHED();
 175     }
 176   }
 177 }
 178
 179 void ChangeQueue::AddNotification(scoped_ptr<Notification> notification) {
 180   std::string id = notification->id();
 181
 182   scoped_ptr<Change> change(
 183       new Change(CHANGE_TYPE_ADD, id, notification.Pass()));
 184   Replace(id, change.Pass());
 185 }
 186
 187 void ChangeQueue::UpdateNotification(const std::string& old_id,
 188                                      scoped_ptr<Notification> notification) {
 189   std::string new_id = notification->id();
 190   scoped_ptr<Change> change(
 191       new Change(CHANGE_TYPE_UPDATE, new_id, notification.Pass()));
 192   Replace(old_id, change.Pass());
 193 }
 194
 195 void ChangeQueue::EraseNotification(const std::string& id, bool by_user) {
 196   scoped_ptr<Change> change(
 197       new Change(CHANGE_TYPE_DELETE, id, scoped_ptr<Notification>()));
 198   change->set_by_user(by_user);
 199   Replace(id, change.Pass());
 200 }
 201
 202 bool ChangeQueue::Has(const std::string& id) const {
 203   ScopedVector<Change>::const_iterator iter =
 204       std::find_if(changes_.begin(), changes_.end(), ChangeFinder(id));
 205   return iter != changes_.end();
 206 }
 207
 208 Notification* ChangeQueue::GetLatestNotification(const std::string& id) const {
 209   ScopedVector<Change>::const_iterator iter =
 210       std::find_if(changes_.begin(), changes_.end(), ChangeFinder(id));
 211   if (iter == changes_.end())
 212     return NULL;
 213
 214   return (*iter)->notification();
 215 }
 216
 217 void ChangeQueue::Replace(const std::string& changed_id,
 218                           scoped_ptr<Change> new_change) {
 219   ScopedVector<Change>::iterator iter =
 220       std::find_if(changes_.begin(), changes_.end(), ChangeFinder(changed_id));
 221   if (iter != changes_.end()) {
 222     Change* old_change = *iter;
 223     new_change->set_notification_list_id(old_change->notification_list_id());
 224     changes_.erase(iter);
 225   } else {
 226     new_change->set_notification_list_id(changed_id);
 227   }
 228
 229   changes_.push_back(new_change.release());
 230 }
 231
 232 ////////////////////////////////////////////////////////////////////////////////
 233 // PopupTimer
 234
 235 PopupTimer::PopupTimer(const std::string& id,
 236                        base::TimeDelta timeout,
 237                        base::WeakPtr<PopupTimersController> controller)
 238     : id_(id),
 239       timeout_(timeout),
 240       timer_controller_(controller),
 241       timer_(new base::OneShotTimer<PopupTimersController>) {}
 242
 243 PopupTimer::~PopupTimer() {
 244   if (!timer_)
 245     return;
 246
 247   if (timer_->IsRunning())
 248     timer_->Stop();
 249 }
 250
 251 void PopupTimer::Start() {
 252   if (timer_->IsRunning())
 253     return;
 254   base::TimeDelta timeout_to_close =
 255       timeout_ <= passed_ ? base::TimeDelta() : timeout_ - passed_;
 256   start_time_ = base::Time::Now();
 257   timer_->Start(
 258       FROM_HERE,
 259       timeout_to_close,
 260       base::Bind(
 261           &PopupTimersController::TimerFinished, timer_controller_, id_));
 262 }
 263
 264 void PopupTimer::Pause() {
 265   if (!timer_.get() || !timer_->IsRunning())
 266     return;
 267
 268   timer_->Stop();
 269   passed_ += base::Time::Now() - start_time_;
 270 }
 271
 272 void PopupTimer::Reset() {
 273   if (timer_)
 274     timer_->Stop();
 275   passed_ = base::TimeDelta();
 276 }
 277
 278 ////////////////////////////////////////////////////////////////////////////////
 279 // PopupTimersController
 280
 281 PopupTimersController::PopupTimersController(MessageCenter* message_center)
 282     : message_center_(message_center), popup_deleter_(&popup_timers_) {
 283   message_center_->AddObserver(this);
 284 }
 285
 286 PopupTimersController::~PopupTimersController() {
 287   message_center_->RemoveObserver(this);
 288 }
 289
 290 void PopupTimersController::StartTimer(const std::string& id,
 291                                        const base::TimeDelta& timeout) {
 292   PopupTimerCollection::iterator iter = popup_timers_.find(id);
 293   if (iter != popup_timers_.end()) {
 294     DCHECK(iter->second);
 295     iter->second->Start();
 296     return;
 297   }
 298
 299   PopupTimer* timer = new PopupTimer(id, timeout, AsWeakPtr());
 300
 301   timer->Start();
 302   popup_timers_[id] = timer;
 303 }
 304
 305 void PopupTimersController::StartAll() {
 306   std::map<std::string, PopupTimer*>::iterator iter;
 307   for (iter = popup_timers_.begin(); iter != popup_timers_.end(); iter++) {
 308     iter->second->Start();
 309   }
 310 }
 311
 312 void PopupTimersController::ResetTimer(const std::string& id,
 313                                        const base::TimeDelta& timeout) {
 314   CancelTimer(id);
 315   StartTimer(id, timeout);
 316 }
 317
 318 void PopupTimersController::PauseTimer(const std::string& id) {
 319   PopupTimerCollection::iterator iter = popup_timers_.find(id);
 320   if (iter == popup_timers_.end())
 321     return;
 322   iter->second->Pause();
 323 }
 324
 325 void PopupTimersController::PauseAll() {
 326   std::map<std::string, PopupTimer*>::iterator iter;
 327   for (iter = popup_timers_.begin(); iter != popup_timers_.end(); iter++) {
 328     iter->second->Pause();
 329   }
 330 }
 331
 332 void PopupTimersController::CancelTimer(const std::string& id) {
 333   PopupTimerCollection::iterator iter = popup_timers_.find(id);
 334   if (iter == popup_timers_.end())
 335     return;
 336
 337   PopupTimer* timer = iter->second;
 338   delete timer;
 339
 340   popup_timers_.erase(iter);
 341 }
 342
 343 void PopupTimersController::CancelAll() {
 344   STLDeleteValues(&popup_timers_);
 345   popup_timers_.clear();
 346 }
 347
 348 void PopupTimersController::TimerFinished(const std::string& id) {
 349   PopupTimerCollection::iterator iter = popup_timers_.find(id);
 350   if (iter == popup_timers_.end())
 351     return;
 352
 353   CancelTimer(id);
 354   message_center_->MarkSinglePopupAsShown(id, false);
 355 }
 356
 357 void PopupTimersController::OnNotificationDisplayed(
 358     const std::string& id,
 359     const DisplaySource source) {
 360   OnNotificationUpdated(id);
 361 }
 362
 363 void PopupTimersController::OnNotificationUpdated(const std::string& id) {
 364   NotificationList::PopupNotifications popup_notifications =
 365       message_center_->GetPopupNotifications();
 366
 367   if (!popup_notifications.size()) {
 368     CancelAll();
 369     return;
 370   }
 371
 372   NotificationList::PopupNotifications::const_iterator iter =
 373       popup_notifications.begin();
 374   for (; iter != popup_notifications.end(); iter++) {
 375     if ((*iter)->id() == id)
 376       break;
 377   }
 378
 379   if (iter == popup_notifications.end() || (*iter)->never_timeout()) {
 380     CancelTimer(id);
 381     return;
 382   }
 383
 384   // Start the timer if not yet.
 385   if (popup_timers_.find(id) == popup_timers_.end())
 386     StartTimer(id, GetTimeoutForPriority((*iter)->priority()));
 387 }
 388
 389 void PopupTimersController::OnNotificationRemoved(const std::string& id,
 390                                                   bool by_user) {
 391   CancelTimer(id);
 392 }
 393
 394 }  // namespace internal
 395
 396 ////////////////////////////////////////////////////////////////////////////////
 397 // MessageCenterImpl::NotificationCache
 398
 399 MessageCenterImpl::NotificationCache::NotificationCache()
 400     : unread_count(0) {}
 401
 402 MessageCenterImpl::NotificationCache::~NotificationCache() {}
 403
 404 void MessageCenterImpl::NotificationCache::Rebuild(
 405     const NotificationList::Notifications& notifications) {
 406   visible_notifications = notifications;
 407   RecountUnread();
 408 }
 409
 410 void MessageCenterImpl::NotificationCache::RecountUnread() {
 411   unread_count = 0;
 412   for (NotificationList::Notifications::const_iterator iter =
 413            visible_notifications.begin();
 414        iter != visible_notifications.end(); ++iter) {
 415     if (!(*iter)->IsRead())
 416       ++unread_count;
 417   }
 418 }
 419
 420 ////////////////////////////////////////////////////////////////////////////////
 421 // MessageCenterImpl
 422
 423 MessageCenterImpl::MessageCenterImpl()
 424     : MessageCenter(),
 425       popup_timers_controller_(new internal::PopupTimersController(this)),
 426       settings_provider_(NULL) {
 427   notification_list_.reset(new NotificationList());
 428   notification_queue_.reset(new internal::ChangeQueue());
 429 }
 430
 431 MessageCenterImpl::~MessageCenterImpl() {}
 432
 433 void MessageCenterImpl::AddObserver(MessageCenterObserver* observer) {
 434   observer_list_.AddObserver(observer);
 435 }
 436
 437 void MessageCenterImpl::RemoveObserver(MessageCenterObserver* observer) {
 438   observer_list_.RemoveObserver(observer);
 439 }
 440
 441 void MessageCenterImpl::AddNotificationBlocker(NotificationBlocker* blocker) {
 442   if (std::find(blockers_.begin(), blockers_.end(), blocker) !=
 443       blockers_.end()) {
 444     return;
 445   }
 446   blocker->AddObserver(this);
 447   blockers_.push_back(blocker);
 448 }
 449
 450 void MessageCenterImpl::RemoveNotificationBlocker(
 451     NotificationBlocker* blocker) {
 452   std::vector<NotificationBlocker*>::iterator iter =
 453       std::find(blockers_.begin(), blockers_.end(), blocker);
 454   if (iter == blockers_.end())
 455     return;
 456   blocker->RemoveObserver(this);
 457   blockers_.erase(iter);
 458 }
 459
 460 void MessageCenterImpl::OnBlockingStateChanged(NotificationBlocker* blocker) {
 461   std::list<std::string> blocked_ids;
 462   NotificationList::PopupNotifications popups =
 463       notification_list_->GetPopupNotifications(blockers_, &blocked_ids);
 464
 465   for (std::list<std::string>::const_iterator iter = blocked_ids.begin();
 466        iter != blocked_ids.end(); ++iter) {
 467     // Do not call MessageCenterImpl::MarkSinglePopupAsShown() directly here
 468     // just for performance reason. MessageCenterImpl::MarkSinglePopupAsShown()
 469     // calls NotificationList::MarkSinglePopupAsShown() and then updates the
 470     // unread count, but the whole cache will be recreated below.
 471     notification_list_->MarkSinglePopupAsShown((*iter), true);
 472     FOR_EACH_OBSERVER(MessageCenterObserver,
 473                       observer_list_,
 474                       OnNotificationUpdated(*iter));
 475   }
 476   notification_cache_.Rebuild(
 477       notification_list_->GetVisibleNotifications(blockers_));
 478   FOR_EACH_OBSERVER(MessageCenterObserver,
 479                     observer_list_,
 480                     OnBlockingStateChanged(blocker));
 481 }
 482
 483 void MessageCenterImpl::SetVisibility(Visibility visibility) {
 484   std::set<std::string> updated_ids;
 485   notification_list_->SetMessageCenterVisible(
 486       (visibility == VISIBILITY_MESSAGE_CENTER), &updated_ids);
 487   notification_cache_.RecountUnread();
 488
 489   for (std::set<std::string>::const_iterator iter = updated_ids.begin();
 490        iter != updated_ids.end();
 491        ++iter) {
 492     FOR_EACH_OBSERVER(
 493         MessageCenterObserver, observer_list_, OnNotificationUpdated(*iter));
 494   }
 495
 496   if (visibility == VISIBILITY_TRANSIENT)
 497     notification_queue_->ApplyChanges(this);
 498
 499   FOR_EACH_OBSERVER(MessageCenterObserver,
 500                     observer_list_,
 501                     OnCenterVisibilityChanged(visibility));
 502 }
 503
 504 bool MessageCenterImpl::IsMessageCenterVisible() const {
 505   return notification_list_->is_message_center_visible();
 506 }
 507
 508 size_t MessageCenterImpl::NotificationCount() const {
 509   return notification_cache_.visible_notifications.size();
 510 }
 511
 512 size_t MessageCenterImpl::UnreadNotificationCount() const {
 513   return notification_cache_.unread_count;
 514 }
 515
 516 bool MessageCenterImpl::HasPopupNotifications() const {
 517   return !IsMessageCenterVisible() &&
 518       notification_list_->HasPopupNotifications(blockers_);
 519 }
 520
 521 bool MessageCenterImpl::HasNotification(const std::string& id) {
 522   // This will return true if the notification with |id| is hidden by the
 523   // ChromeOS multi-profile feature. This would be harmless for now because
 524   // this check will be used from the UI, so the |id| for hidden profile won't
 525   // arrive here.
 526   // TODO(mukai): fix this if necessary.
 527   return notification_list_->HasNotification(id);
 528 }
 529
 530 bool MessageCenterImpl::IsQuietMode() const {
 531   return notification_list_->quiet_mode();
 532 }
 533
 534 bool MessageCenterImpl::HasClickedListener(const std::string& id) {
 535   scoped_refptr<NotificationDelegate> delegate =
 536       notification_list_->GetNotificationDelegate(id);
 537   return delegate.get() && delegate->HasClickedListener();
 538 }
 539
 540 const NotificationList::Notifications&
 541 MessageCenterImpl::GetVisibleNotifications() {
 542   return notification_cache_.visible_notifications;
 543 }
 544
 545 NotificationList::PopupNotifications
 546     MessageCenterImpl::GetPopupNotifications() {
 547   return notification_list_->GetPopupNotifications(blockers_, NULL);
 548 }
 549
 550 //------------------------------------------------------------------------------
 551 // Client code interface.
 552 void MessageCenterImpl::AddNotification(scoped_ptr<Notification> notification) {
 553   DCHECK(notification.get());
 554   const std::string id = notification->id();
 555   for (size_t i = 0; i < blockers_.size(); ++i)
 556     blockers_[i]->CheckState();
 557
 558   if (notification_list_->is_message_center_visible()) {
 559     notification_queue_->AddNotification(notification.Pass());
 560     return;
 561   }
 562
 563   // Sometimes the notification can be added with the same id and the
 564   // |notification_list| will replace the notification instead of adding new.
 565   // This is essentially an update rather than addition.
 566   bool already_exists = notification_list_->HasNotification(id);
 567   notification_list_->AddNotification(notification.Pass());
 568   notification_cache_.Rebuild(
 569       notification_list_->GetVisibleNotifications(blockers_));
 570
 571   if (already_exists) {
 572     FOR_EACH_OBSERVER(
 573         MessageCenterObserver, observer_list_, OnNotificationUpdated(id));
 574   } else {
 575     FOR_EACH_OBSERVER(
 576         MessageCenterObserver, observer_list_, OnNotificationAdded(id));
 577   }
 578 }
 579
 580 void MessageCenterImpl::UpdateNotification(
 581     const std::string& old_id,
 582     scoped_ptr<Notification> new_notification) {
 583   for (size_t i = 0; i < blockers_.size(); ++i)
 584     blockers_[i]->CheckState();
 585
 586   if (notification_list_->is_message_center_visible()) {
 587     // We will allow notifications that are progress types (and stay progress
 588     // types) to be updated even if the message center is open.  There are 3
 589     // requirements here:
 590     //  * Notification of type PROGRESS exists with same ID in the center
 591     //  * There are no queued updates for this notification (they imply a change
 592     //    that violates the PROGRESS invariant
 593     //  * The new notification is type PROGRESS.
 594     // TODO(dewittj): Ensure this works when the ID is changed by the caller.
 595     // This shouldn't be an issue in practice since only W3C notifications
 596     // change the ID on update, and they don't have progress type notifications.
 597     bool update_keeps_progress_type =
 598         new_notification->type() == NOTIFICATION_TYPE_PROGRESS &&
 599         !notification_queue_->Has(old_id) &&
 600         notification_list_->HasNotificationOfType(old_id,
 601                                                   NOTIFICATION_TYPE_PROGRESS);
 602     if (!update_keeps_progress_type) {
 603       // Updates are allowed only for progress notifications.
 604       notification_queue_->UpdateNotification(old_id, new_notification.Pass());
 605       return;
 606     }
 607   }
 608
 609   std::string new_id = new_notification->id();
 610   notification_list_->UpdateNotificationMessage(old_id,
 611                                                 new_notification.Pass());
 612   notification_cache_.Rebuild(
 613      notification_list_->GetVisibleNotifications(blockers_));
 614   if (old_id == new_id) {
 615     FOR_EACH_OBSERVER(
 616         MessageCenterObserver, observer_list_, OnNotificationUpdated(new_id));
 617   } else {
 618     FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
 619                       OnNotificationRemoved(old_id, false));
 620     FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
 621                       OnNotificationAdded(new_id));
 622   }
 623 }
 624
 625 void MessageCenterImpl::RemoveNotification(const std::string& id,
 626                                            bool by_user) {
 627   if (!by_user && notification_list_->is_message_center_visible()) {
 628     notification_queue_->EraseNotification(id, by_user);
 629     return;
 630   }
 631
 632   if (!HasNotification(id))
 633     return;
 634
 635   // In many cases |id| is a reference to an existing notification instance
 636   // but the instance can be destructed in RemoveNotification(). Hence
 637   // copies the id explicitly here.
 638   std::string copied_id(id);
 639
 640   scoped_refptr<NotificationDelegate> delegate =
 641       notification_list_->GetNotificationDelegate(copied_id);
 642   if (delegate.get())
 643     delegate->Close(by_user);
 644
 645   notification_list_->RemoveNotification(copied_id);
 646   notification_cache_.Rebuild(
 647       notification_list_->GetVisibleNotifications(blockers_));
 648   FOR_EACH_OBSERVER(MessageCenterObserver,
 649                     observer_list_,
 650                     OnNotificationRemoved(copied_id, by_user));
 651 }
 652
 653 void MessageCenterImpl::RemoveAllNotifications(bool by_user) {
 654   // Using not |blockers_| but an empty list since it wants to remove literally
 655   // all notifications.
 656   RemoveNotifications(by_user, NotificationBlockers());
 657 }
 658
 659 void MessageCenterImpl::RemoveAllVisibleNotifications(bool by_user) {
 660   RemoveNotifications(by_user, blockers_);
 661 }
 662
 663 void MessageCenterImpl::RemoveNotifications(
 664     bool by_user,
 665     const NotificationBlockers& blockers) {
 666   const NotificationList::Notifications notifications =
 667       notification_list_->GetVisibleNotifications(blockers);
 668   std::set<std::string> ids;
 669   for (NotificationList::Notifications::const_iterator iter =
 670            notifications.begin(); iter != notifications.end(); ++iter) {
 671     ids.insert((*iter)->id());
 672     scoped_refptr<NotificationDelegate> delegate = (*iter)->delegate();
 673     if (delegate.get())
 674       delegate->Close(by_user);
 675     notification_list_->RemoveNotification((*iter)->id());
 676   }
 677
 678   if (!ids.empty()) {
 679     notification_cache_.Rebuild(
 680         notification_list_->GetVisibleNotifications(blockers_));
 681   }
 682   for (std::set<std::string>::const_iterator iter = ids.begin();
 683        iter != ids.end(); ++iter) {
 684     FOR_EACH_OBSERVER(MessageCenterObserver,
 685                       observer_list_,
 686                       OnNotificationRemoved(*iter, by_user));
 687   }
 688 }
 689
 690 void MessageCenterImpl::SetNotificationIcon(const std::string& notification_id,
 691                                         const gfx::Image& image) {
 692   bool updated = false;
 693   Notification* queue_notification = notification_queue_->GetLatestNotification(
 694       notification_id);
 695
 696   if (queue_notification) {
 697     queue_notification->set_icon(image);
 698     updated = true;
 699   } else {
 700     updated = notification_list_->SetNotificationIcon(notification_id, image);
 701   }
 702
 703   if (updated) {
 704     FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
 705                       OnNotificationUpdated(notification_id));
 706   }
 707 }
 708
 709 void MessageCenterImpl::SetNotificationImage(const std::string& notification_id,
 710                                          const gfx::Image& image) {
 711   bool updated = false;
 712   Notification* queue_notification = notification_queue_->GetLatestNotification(
 713       notification_id);
 714
 715   if (queue_notification) {
 716     queue_notification->set_image(image);
 717     updated = true;
 718   } else {
 719     updated = notification_list_->SetNotificationImage(notification_id, image);
 720   }
 721
 722   if (updated) {
 723     FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
 724                       OnNotificationUpdated(notification_id));
 725   }
 726 }
 727
 728 void MessageCenterImpl::SetNotificationButtonIcon(
 729     const std::string& notification_id, int button_index,
 730     const gfx::Image& image) {
 731   bool updated = false;
 732   Notification* queue_notification = notification_queue_->GetLatestNotification(
 733       notification_id);
 734
 735   if (queue_notification) {
 736     queue_notification->SetButtonIcon(button_index, image);
 737     updated = true;
 738   } else {
 739     updated = notification_list_->SetNotificationButtonIcon(
 740         notification_id, button_index, image);
 741   }
 742
 743   if (updated) {
 744     FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
 745                       OnNotificationUpdated(notification_id));
 746   }
 747 }
 748
 749 void MessageCenterImpl::DisableNotificationsByNotifier(
 750     const NotifierId& notifier_id) {
 751   if (settings_provider_) {
 752     // TODO(mukai): SetNotifierEnabled can just accept notifier_id?
 753     Notifier notifier(notifier_id, base::string16(), true);
 754     settings_provider_->SetNotifierEnabled(notifier, false);
 755   }
 756
 757   NotificationList::Notifications notifications =
 758       notification_list_->GetNotificationsByNotifierId(notifier_id);
 759   for (NotificationList::Notifications::const_iterator iter =
 760            notifications.begin(); iter != notifications.end();) {
 761     std::string id = (*iter)->id();
 762     iter++;
 763     RemoveNotification(id, false);
 764   }
 765   if (!notifications.empty()) {
 766     notification_cache_.Rebuild(
 767         notification_list_->GetVisibleNotifications(blockers_));
 768   }
 769 }
 770
 771 void MessageCenterImpl::ClickOnNotification(const std::string& id) {
 772   if (!HasNotification(id))
 773     return;
 774   if (HasPopupNotifications())
 775     MarkSinglePopupAsShown(id, true);
 776   scoped_refptr<NotificationDelegate> delegate =
 777       notification_list_->GetNotificationDelegate(id);
 778   if (delegate.get())
 779     delegate->Click();
 780   FOR_EACH_OBSERVER(
 781       MessageCenterObserver, observer_list_, OnNotificationClicked(id));
 782 }
 783
 784 void MessageCenterImpl::ClickOnNotificationButton(const std::string& id,
 785                                               int button_index) {
 786   if (!HasNotification(id))
 787     return;
 788   if (HasPopupNotifications())
 789     MarkSinglePopupAsShown(id, true);
 790   scoped_refptr<NotificationDelegate> delegate =
 791       notification_list_->GetNotificationDelegate(id);
 792   if (delegate.get())
 793     delegate->ButtonClick(button_index);
 794   FOR_EACH_OBSERVER(
 795       MessageCenterObserver, observer_list_, OnNotificationButtonClicked(
 796           id, button_index));
 797 }
 798
 799 void MessageCenterImpl::MarkSinglePopupAsShown(const std::string& id,
 800                                                bool mark_notification_as_read) {
 801   if (!HasNotification(id))
 802     return;
 803   notification_list_->MarkSinglePopupAsShown(id, mark_notification_as_read);
 804   notification_cache_.RecountUnread();
 805   FOR_EACH_OBSERVER(
 806       MessageCenterObserver, observer_list_, OnNotificationUpdated(id));
 807 }
 808
 809 void MessageCenterImpl::DisplayedNotification(
 810     const std::string& id,
 811     const DisplaySource source) {
 812   if (!HasNotification(id))
 813     return;
 814
 815   if (HasPopupNotifications())
 816     notification_list_->MarkSinglePopupAsDisplayed(id);
 817   notification_cache_.RecountUnread();
 818   scoped_refptr<NotificationDelegate> delegate =
 819       notification_list_->GetNotificationDelegate(id);
 820   if (delegate.get())
 821     delegate->Display();
 822   FOR_EACH_OBSERVER(
 823       MessageCenterObserver,
 824       observer_list_,
 825       OnNotificationDisplayed(id, source));
 826 }
 827
 828 void MessageCenterImpl::SetNotifierSettingsProvider(
 829     NotifierSettingsProvider* provider) {
 830   settings_provider_ = provider;
 831 }
 832
 833 NotifierSettingsProvider* MessageCenterImpl::GetNotifierSettingsProvider() {
 834   return settings_provider_;
 835 }
 836
 837 void MessageCenterImpl::SetQuietMode(bool in_quiet_mode) {
 838   if (in_quiet_mode != notification_list_->quiet_mode()) {
 839     notification_list_->SetQuietMode(in_quiet_mode);
 840     FOR_EACH_OBSERVER(MessageCenterObserver,
 841                       observer_list_,
 842                       OnQuietModeChanged(in_quiet_mode));
 843   }
 844   quiet_mode_timer_.reset();
 845 }
 846
 847 void MessageCenterImpl::EnterQuietModeWithExpire(
 848     const base::TimeDelta& expires_in) {
 849   if (quiet_mode_timer_.get()) {
 850     // Note that the capital Reset() is the method to restart the timer, not
 851     // scoped_ptr::reset().
 852     quiet_mode_timer_->Reset();
 853   } else {
 854     notification_list_->SetQuietMode(true);
 855     FOR_EACH_OBSERVER(
 856         MessageCenterObserver, observer_list_, OnQuietModeChanged(true));
 857
 858     quiet_mode_timer_.reset(new base::OneShotTimer<MessageCenterImpl>);
 859     quiet_mode_timer_->Start(
 860         FROM_HERE,
 861         expires_in,
 862         base::Bind(
 863             &MessageCenterImpl::SetQuietMode, base::Unretained(this), false));
 864   }
 865 }
 866
 867 void MessageCenterImpl::RestartPopupTimers() {
 868   if (popup_timers_controller_.get())
 869     popup_timers_controller_->StartAll();
 870 }
 871
 872 void MessageCenterImpl::PausePopupTimers() {
 873   if (popup_timers_controller_.get())
 874     popup_timers_controller_->PauseAll();
 875 }
 876
 877 void MessageCenterImpl::DisableTimersForTest() {
 878   popup_timers_controller_.reset();
 879 }
 880
 881 }  // namespace message_center