chrome/browser/notifications/screen_lock_notification_blocker.cc

   1 // Copyright 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 "chrome/browser/notifications/screen_lock_notification_blocker.h"
   6
   7 #include "base/time/time.h"
   8 #include "ui/base/idle/idle.h"
   9
  10 namespace {
  11 const int kUserStatePollingIntervalSeconds = 1;
  12 }
  13
  14 ScreenLockNotificationBlocker::ScreenLockNotificationBlocker(
  15     message_center::MessageCenter* message_center)
  16     : NotificationBlocker(message_center),
  17       is_locked_(false) {
  18 }
  19
  20 ScreenLockNotificationBlocker::~ScreenLockNotificationBlocker() {
  21 }
  22
  23 void ScreenLockNotificationBlocker::CheckState() {
  24   bool was_locked = is_locked_;
  25   is_locked_ = ui::CheckIdleStateIsLocked();
  26   if (is_locked_ != was_locked)
  27     NotifyBlockingStateChanged();
  28
  29   if (is_locked_) {
  30     timer_.Start(FROM_HERE,
  31                  base::TimeDelta::FromSeconds(kUserStatePollingIntervalSeconds),
  32                  this,
  33                  &ScreenLockNotificationBlocker::CheckState);
  34   }
  35 }
  36
  37 bool ScreenLockNotificationBlocker::ShouldShowNotificationAsPopup(
  38     const message_center::NotifierId& notifier_id) const {
  39   return !is_locked_;
  40 }