src/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 "chrome/browser/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_ = CheckIdleStateIsLocked();
  26   if (is_locked_ != was_locked) {
  27     FOR_EACH_OBSERVER(
  28         NotificationBlocker::Observer, observers(), OnBlockingStateChanged());
  29   }
  30
  31   if (is_locked_) {
  32     timer_.Start(FROM_HERE,
  33                  base::TimeDelta::FromSeconds(kUserStatePollingIntervalSeconds),
  34                  this,
  35                  &ScreenLockNotificationBlocker::CheckState);
  36   }
  37 }
  38
  39 bool ScreenLockNotificationBlocker::ShouldShowNotificationAsPopup(
  40     const message_center::NotifierId& notifier_id) const {
  41   return !is_locked_;
  42 }