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(const std::string& id) {
 358   OnNotificationUpdated(id);
 359 }
 360
 361 void PopupTimersController::OnNotificationUpdated(const std::string& id) {
 362   NotificationList::PopupNotifications popup_notifications =
 363       message_center_->GetPopupNotifications();
 364
 365   if (!popup_notifications.size()) {
 366     CancelAll();
 367     return;
 368   }
 369
 370   NotificationList::PopupNotifications::const_iterator iter =
 371       popup_notifications.begin();
 372   for (; iter != popup_notifications.end(); iter++) {
 373     if ((*iter)->id() == id)
 374       break;
 375   }
 376
 377   if (iter == popup_notifications.end() || (*iter)->never_timeout()) {
 378     CancelTimer(id);
 379     return;
 380   }
 381
 382   // Start the timer if not yet.
 383   if (popup_timers_.find(id) == popup_timers_.end())
 384     StartTimer(id, GetTimeoutForPriority((*iter)->priority()));
 385 }
 386
 387 void PopupTimersController::OnNotificationRemoved(const std::string& id,
 388                                                   bool by_user) {
 389   CancelTimer(id);
 390 }
 391
 392 }  // namespace internal
 393
 394 ////////////////////////////////////////////////////////////////////////////////
 395 // MessageCenterImpl::NotificationCache
 396
 397 MessageCenterImpl::NotificationCache::NotificationCache()
 398     : unread_count(0) {}
 399
 400 MessageCenterImpl::NotificationCache::~NotificationCache() {}
 401
 402 void MessageCenterImpl::NotificationCache::Rebuild(
 403     const NotificationList::Notifications& notifications) {
 404   visible_notifications = notifications;
 405   RecountUnread();
 406 }
 407
 408 void MessageCenterImpl::NotificationCache::RecountUnread() {
 409   unread_count = 0;
 410   for (NotificationList::Notifications::const_iterator iter =
 411            visible_notifications.begin();
 412        iter != visible_notifications.end(); ++iter) {
 413     if (!(*iter)->IsRead())
 414       ++unread_count;
 415   }
 416 }
 417
 418 ////////////////////////////////////////////////////////////////////////////////
 419 // MessageCenterImpl
 420
 421 MessageCenterImpl::MessageCenterImpl()
 422     : MessageCenter(),
 423       popup_timers_controller_(new internal::PopupTimersController(this)),
 424       settings_provider_(NULL) {
 425   notification_list_.reset(new NotificationList());
 426   notification_queue_.reset(new internal::ChangeQueue());
 427 }
 428
 429 MessageCenterImpl::~MessageCenterImpl() {}
 430
 431 void MessageCenterImpl::AddObserver(MessageCenterObserver* observer) {
 432   observer_list_.AddObserver(observer);
 433 }
 434
 435 void MessageCenterImpl::RemoveObserver(MessageCenterObserver* observer) {
 436   observer_list_.RemoveObserver(observer);
 437 }
 438
 439 void MessageCenterImpl::AddNotificationBlocker(NotificationBlocker* blocker) {
 440   if (std::find(blockers_.begin(), blockers_.end(), blocker) !=
 441       blockers_.end()) {
 442     return;
 443   }
 444   blocker->AddObserver(this);
 445   blockers_.push_back(blocker);
 446 }
 447
 448 void MessageCenterImpl::RemoveNotificationBlocker(
 449     NotificationBlocker* blocker) {
 450   std::vector<NotificationBlocker*>::iterator iter =
 451       std::find(blockers_.begin(), blockers_.end(), blocker);
 452   if (iter == blockers_.end())
 453     return;
 454   blocker->RemoveObserver(this);
 455   blockers_.erase(iter);
 456 }
 457
 458 void MessageCenterImpl::OnBlockingStateChanged(NotificationBlocker* blocker) {
 459   std::list<std::string> blocked_ids;
 460   NotificationList::PopupNotifications popups =
 461       notification_list_->GetPopupNotifications(blockers_, &blocked_ids);
 462
 463   for (std::list<std::string>::const_iterator iter = blocked_ids.begin();
 464        iter != blocked_ids.end(); ++iter) {
 465     // Do not call MessageCenterImpl::MarkSinglePopupAsShown() directly here
 466     // just for performance reason. MessageCenterImpl::MarkSinglePopupAsShown()
 467     // calls NotificationList::MarkSinglePopupAsShown() and then updates the
 468     // unread count, but the whole cache will be recreated below.
 469     notification_list_->MarkSinglePopupAsShown((*iter), true);
 470     FOR_EACH_OBSERVER(MessageCenterObserver,
 471                       observer_list_,
 472                       OnNotificationUpdated(*iter));
 473   }
 474   notification_cache_.Rebuild(
 475       notification_list_->GetVisibleNotifications(blockers_));
 476   FOR_EACH_OBSERVER(MessageCenterObserver,
 477                     observer_list_,
 478                     OnBlockingStateChanged(blocker));
 479 }
 480
 481 void MessageCenterImpl::SetVisibility(Visibility visibility) {
 482   std::set<std::string> updated_ids;
 483   notification_list_->SetMessageCenterVisible(
 484       (visibility == VISIBILITY_MESSAGE_CENTER), &updated_ids);
 485   notification_cache_.RecountUnread();
 486
 487   for (std::set<std::string>::const_iterator iter = updated_ids.begin();
 488        iter != updated_ids.end();
 489        ++iter) {
 490     FOR_EACH_OBSERVER(
 491         MessageCenterObserver, observer_list_, OnNotificationUpdated(*iter));
 492   }
 493
 494   if (visibility == VISIBILITY_TRANSIENT)
 495     notification_queue_->ApplyChanges(this);
 496
 497   FOR_EACH_OBSERVER(MessageCenterObserver,
 498                     observer_list_,
 499                     OnCenterVisibilityChanged(visibility));
 500 }
 501
 502 bool MessageCenterImpl::IsMessageCenterVisible() const {
 503   return notification_list_->is_message_center_visible();
 504 }
 505
 506 size_t MessageCenterImpl::NotificationCount() const {
 507   return notification_cache_.visible_notifications.size();
 508 }
 509
 510 size_t MessageCenterImpl::UnreadNotificationCount() const {
 511   return notification_cache_.unread_count;
 512 }
 513
 514 bool MessageCenterImpl::HasPopupNotifications() const {
 515   return !IsMessageCenterVisible() &&
 516       notification_list_->HasPopupNotifications(blockers_);
 517 }
 518
 519 bool MessageCenterImpl::HasNotification(const std::string& id) {
 520   // This will return true if the notification with |id| is hidden by the
 521   // ChromeOS multi-profile feature. This would be harmless for now because
 522   // this check will be used from the UI, so the |id| for hidden profile won't
 523   // arrive here.
 524   // TODO(mukai): fix this if necessary.
 525   return notification_list_->HasNotification(id);
 526 }
 527
 528 bool MessageCenterImpl::IsQuietMode() const {
 529   return notification_list_->quiet_mode();
 530 }
 531
 532 bool MessageCenterImpl::HasClickedListener(const std::string& id) {
 533   scoped_refptr<NotificationDelegate> delegate =
 534       notification_list_->GetNotificationDelegate(id);
 535   return delegate.get() && delegate->HasClickedListener();
 536 }
 537
 538 const NotificationList::Notifications&
 539 MessageCenterImpl::GetVisibleNotifications() {
 540   return notification_cache_.visible_notifications;
 541 }
 542
 543 NotificationList::PopupNotifications
 544     MessageCenterImpl::GetPopupNotifications() {
 545   return notification_list_->GetPopupNotifications(blockers_, NULL);
 546 }
 547
 548 //------------------------------------------------------------------------------
 549 // Client code interface.
 550 void MessageCenterImpl::AddNotification(scoped_ptr<Notification> notification) {
 551   DCHECK(notification.get());
 552   const std::string id = notification->id();
 553   for (size_t i = 0; i < blockers_.size(); ++i)
 554     blockers_[i]->CheckState();
 555
 556   if (notification_list_->is_message_center_visible()) {
 557     notification_queue_->AddNotification(notification.Pass());
 558     return;
 559   }
 560
 561   // Sometimes the notification can be added with the same id and the
 562   // |notification_list| will replace the notification instead of adding new.
 563   // This is essentially an update rather than addition.
 564   bool already_exists = notification_list_->HasNotification(id);
 565   notification_list_->AddNotification(notification.Pass());
 566   notification_cache_.Rebuild(
 567       notification_list_->GetVisibleNotifications(blockers_));
 568
 569   if (already_exists) {
 570     FOR_EACH_OBSERVER(
 571         MessageCenterObserver, observer_list_, OnNotificationUpdated(id));
 572   } else {
 573     FOR_EACH_OBSERVER(
 574         MessageCenterObserver, observer_list_, OnNotificationAdded(id));
 575   }
 576 }
 577
 578 void MessageCenterImpl::UpdateNotification(
 579     const std::string& old_id,
 580     scoped_ptr<Notification> new_notification) {
 581   for (size_t i = 0; i < blockers_.size(); ++i)
 582     blockers_[i]->CheckState();
 583
 584   if (notification_list_->is_message_center_visible()) {
 585     // We will allow notifications that are progress types (and stay progress
 586     // types) to be updated even if the message center is open.  There are 3
 587     // requirements here:
 588     //  * Notification of type PROGRESS exists with same ID in the center
 589     //  * There are no queued updates for this notification (they imply a change
 590     //    that violates the PROGRESS invariant
 591     //  * The new notification is type PROGRESS.
 592     // TODO(dewittj): Ensure this works when the ID is changed by the caller.
 593     // This shouldn't be an issue in practice since only W3C notifications
 594     // change the ID on update, and they don't have progress type notifications.
 595     bool update_keeps_progress_type =
 596         new_notification->type() == NOTIFICATION_TYPE_PROGRESS &&
 597         !notification_queue_->Has(old_id) &&
 598         notification_list_->HasNotificationOfType(old_id,
 599                                                   NOTIFICATION_TYPE_PROGRESS);
 600     if (!update_keeps_progress_type) {
 601       // Updates are allowed only for progress notifications.
 602       notification_queue_->UpdateNotification(old_id, new_notification.Pass());
 603       return;
 604     }
 605   }
 606
 607   std::string new_id = new_notification->id();
 608   notification_list_->UpdateNotificationMessage(old_id,
 609                                                 new_notification.Pass());
 610   notification_cache_.Rebuild(
 611      notification_list_->GetVisibleNotifications(blockers_));
 612   if (old_id == new_id) {
 613     FOR_EACH_OBSERVER(
 614         MessageCenterObserver, observer_list_, OnNotificationUpdated(new_id));
 615   } else {
 616     FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
 617                       OnNotificationRemoved(old_id, false));
 618     FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
 619                       OnNotificationAdded(new_id));
 620   }
 621 }
 622
 623 void MessageCenterImpl::RemoveNotification(const std::string& id,
 624                                            bool by_user) {
 625   if (!by_user && notification_list_->is_message_center_visible()) {
 626     notification_queue_->EraseNotification(id, by_user);
 627     return;
 628   }
 629
 630   if (!HasNotification(id))
 631     return;
 632
 633   // In many cases |id| is a reference to an existing notification instance
 634   // but the instance can be destructed in RemoveNotification(). Hence
 635   // copies the id explicitly here.
 636   std::string copied_id(id);
 637
 638   scoped_refptr<NotificationDelegate> delegate =
 639       notification_list_->GetNotificationDelegate(copied_id);
 640   if (delegate.get())
 641     delegate->Close(by_user);
 642
 643   notification_list_->RemoveNotification(copied_id);
 644   notification_cache_.Rebuild(
 645       notification_list_->GetVisibleNotifications(blockers_));
 646   FOR_EACH_OBSERVER(MessageCenterObserver,
 647                     observer_list_,
 648                     OnNotificationRemoved(copied_id, by_user));
 649 }
 650
 651 void MessageCenterImpl::RemoveAllNotifications(bool by_user) {
 652   // Using not |blockers_| but an empty list since it wants to remove literally
 653   // all notifications.
 654   RemoveNotifications(by_user, NotificationBlockers());
 655 }
 656
 657 void MessageCenterImpl::RemoveAllVisibleNotifications(bool by_user) {
 658   RemoveNotifications(by_user, blockers_);
 659 }
 660
 661 void MessageCenterImpl::RemoveNotifications(
 662     bool by_user,
 663     const NotificationBlockers& blockers) {
 664   const NotificationList::Notifications notifications =
 665       notification_list_->GetVisibleNotifications(blockers);
 666   std::set<std::string> ids;
 667   for (NotificationList::Notifications::const_iterator iter =
 668            notifications.begin(); iter != notifications.end(); ++iter) {
 669     ids.insert((*iter)->id());
 670     scoped_refptr<NotificationDelegate> delegate = (*iter)->delegate();
 671     if (delegate.get())
 672       delegate->Close(by_user);
 673     notification_list_->RemoveNotification((*iter)->id());
 674   }
 675
 676   if (!ids.empty()) {
 677     notification_cache_.Rebuild(
 678         notification_list_->GetVisibleNotifications(blockers_));
 679   }
 680   for (std::set<std::string>::const_iterator iter = ids.begin();
 681        iter != ids.end(); ++iter) {
 682     FOR_EACH_OBSERVER(MessageCenterObserver,
 683                       observer_list_,
 684                       OnNotificationRemoved(*iter, by_user));
 685   }
 686 }
 687
 688 void MessageCenterImpl::SetNotificationIcon(const std::string& notification_id,
 689                                         const gfx::Image& image) {
 690   bool updated = false;
 691   Notification* queue_notification = notification_queue_->GetLatestNotification(
 692       notification_id);
 693
 694   if (queue_notification) {
 695     queue_notification->set_icon(image);
 696     updated = true;
 697   } else {
 698     updated = notification_list_->SetNotificationIcon(notification_id, image);
 699   }
 700
 701   if (updated) {
 702     FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
 703                       OnNotificationUpdated(notification_id));
 704   }
 705 }
 706
 707 void MessageCenterImpl::SetNotificationImage(const std::string& notification_id,
 708                                          const gfx::Image& image) {
 709   bool updated = false;
 710   Notification* queue_notification = notification_queue_->GetLatestNotification(
 711       notification_id);
 712
 713   if (queue_notification) {
 714     queue_notification->set_image(image);
 715     updated = true;
 716   } else {
 717     updated = notification_list_->SetNotificationImage(notification_id, image);
 718   }
 719
 720   if (updated) {
 721     FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
 722                       OnNotificationUpdated(notification_id));
 723   }
 724 }
 725
 726 void MessageCenterImpl::SetNotificationButtonIcon(
 727     const std::string& notification_id, int button_index,
 728     const gfx::Image& image) {
 729   bool updated = false;
 730   Notification* queue_notification = notification_queue_->GetLatestNotification(
 731       notification_id);
 732
 733   if (queue_notification) {
 734     queue_notification->SetButtonIcon(button_index, image);
 735     updated = true;
 736   } else {
 737     updated = notification_list_->SetNotificationButtonIcon(
 738         notification_id, button_index, image);
 739   }
 740
 741   if (updated) {
 742     FOR_EACH_OBSERVER(MessageCenterObserver, observer_list_,
 743                       OnNotificationUpdated(notification_id));
 744   }
 745 }
 746
 747 void MessageCenterImpl::DisableNotificationsByNotifier(
 748     const NotifierId& notifier_id) {
 749   if (settings_provider_) {
 750     // TODO(mukai): SetNotifierEnabled can just accept notifier_id?
 751     Notifier notifier(notifier_id, base::string16(), true);
 752     settings_provider_->SetNotifierEnabled(notifier, false);
 753   }
 754
 755   NotificationList::Notifications notifications =
 756       notification_list_->GetNotificationsByNotifierId(notifier_id);
 757   for (NotificationList::Notifications::const_iterator iter =
 758            notifications.begin(); iter != notifications.end();) {
 759     std::string id = (*iter)->id();
 760     iter++;
 761     RemoveNotification(id, false);
 762   }
 763   if (!notifications.empty()) {
 764     notification_cache_.Rebuild(
 765         notification_list_->GetVisibleNotifications(blockers_));
 766   }
 767 }
 768
 769 void MessageCenterImpl::ClickOnNotification(const std::string& id) {
 770   if (!HasNotification(id))
 771     return;
 772   if (HasPopupNotifications())
 773     MarkSinglePopupAsShown(id, true);
 774   scoped_refptr<NotificationDelegate> delegate =
 775       notification_list_->GetNotificationDelegate(id);
 776   if (delegate.get())
 777     delegate->Click();
 778   FOR_EACH_OBSERVER(
 779       MessageCenterObserver, observer_list_, OnNotificationClicked(id));
 780 }
 781
 782 void MessageCenterImpl::ClickOnNotificationButton(const std::string& id,
 783                                               int button_index) {
 784   if (!HasNotification(id))
 785     return;
 786   if (HasPopupNotifications())
 787     MarkSinglePopupAsShown(id, true);
 788   scoped_refptr<NotificationDelegate> delegate =
 789       notification_list_->GetNotificationDelegate(id);
 790   if (delegate.get())
 791     delegate->ButtonClick(button_index);
 792   FOR_EACH_OBSERVER(
 793       MessageCenterObserver, observer_list_, OnNotificationButtonClicked(
 794           id, button_index));
 795 }
 796
 797 void MessageCenterImpl::MarkSinglePopupAsShown(const std::string& id,
 798                                                bool mark_notification_as_read) {
 799   if (!HasNotification(id))
 800     return;
 801   notification_list_->MarkSinglePopupAsShown(id, mark_notification_as_read);
 802   notification_cache_.RecountUnread();
 803   FOR_EACH_OBSERVER(
 804       MessageCenterObserver, observer_list_, OnNotificationUpdated(id));
 805 }
 806
 807 void MessageCenterImpl::DisplayedNotification(const std::string& id) {
 808   if (!HasNotification(id))
 809     return;
 810
 811   if (HasPopupNotifications())
 812     notification_list_->MarkSinglePopupAsDisplayed(id);
 813   notification_cache_.RecountUnread();
 814   scoped_refptr<NotificationDelegate> delegate =
 815       notification_list_->GetNotificationDelegate(id);
 816   if (delegate.get())
 817     delegate->Display();
 818   FOR_EACH_OBSERVER(
 819       MessageCenterObserver, observer_list_, OnNotificationDisplayed(id));
 820 }
 821
 822 void MessageCenterImpl::SetNotifierSettingsProvider(
 823     NotifierSettingsProvider* provider) {
 824   settings_provider_ = provider;
 825 }
 826
 827 NotifierSettingsProvider* MessageCenterImpl::GetNotifierSettingsProvider() {
 828   return settings_provider_;
 829 }
 830
 831 void MessageCenterImpl::SetQuietMode(bool in_quiet_mode) {
 832   if (in_quiet_mode != notification_list_->quiet_mode()) {
 833     notification_list_->SetQuietMode(in_quiet_mode);
 834     FOR_EACH_OBSERVER(MessageCenterObserver,
 835                       observer_list_,
 836                       OnQuietModeChanged(in_quiet_mode));
 837   }
 838   quiet_mode_timer_.reset();
 839 }
 840
 841 void MessageCenterImpl::EnterQuietModeWithExpire(
 842     const base::TimeDelta& expires_in) {
 843   if (quiet_mode_timer_.get()) {
 844     // Note that the capital Reset() is the method to restart the timer, not
 845     // scoped_ptr::reset().
 846     quiet_mode_timer_->Reset();
 847   } else {
 848     notification_list_->SetQuietMode(true);
 849     FOR_EACH_OBSERVER(
 850         MessageCenterObserver, observer_list_, OnQuietModeChanged(true));
 851
 852     quiet_mode_timer_.reset(new base::OneShotTimer<MessageCenterImpl>);
 853     quiet_mode_timer_->Start(
 854         FROM_HERE,
 855         expires_in,
 856         base::Bind(
 857             &MessageCenterImpl::SetQuietMode, base::Unretained(this), false));
 858   }
 859 }
 860
 861 void MessageCenterImpl::RestartPopupTimers() {
 862   if (popup_timers_controller_.get())
 863     popup_timers_controller_->StartAll();
 864 }
 865
 866 void MessageCenterImpl::PausePopupTimers() {
 867   if (popup_timers_controller_.get())
 868     popup_timers_controller_->PauseAll();
 869 }
 870
 871 void MessageCenterImpl::DisableTimersForTest() {
 872   popup_timers_controller_.reset();
 873 }
 874
 875 }  // namespace message_center