media/cdm/player_tracker_impl.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 "media/cdm/player_tracker_impl.h"
   6
   7 #include <utility>
   8
   9 #include "base/stl_util.h"
  10
  11 namespace media {
  12
  13 PlayerTrackerImpl::PlayerCallbacks::PlayerCallbacks(
  14     base::Closure new_key_cb,
  15     base::Closure cdm_unset_cb)
  16     : new_key_cb(new_key_cb), cdm_unset_cb(cdm_unset_cb) {
  17 }
  18
  19 PlayerTrackerImpl::PlayerCallbacks::~PlayerCallbacks() {
  20 }
  21
  22 PlayerTrackerImpl::PlayerTrackerImpl() : next_registration_id_(1) {}
  23
  24 PlayerTrackerImpl::~PlayerTrackerImpl() {}
  25
  26 int PlayerTrackerImpl::RegisterPlayer(const base::Closure& new_key_cb,
  27                                       const base::Closure& cdm_unset_cb) {
  28   DCHECK(thread_checker_.CalledOnValidThread());
  29   int registration_id = next_registration_id_++;
  30   DCHECK(!ContainsKey(player_callbacks_map_, registration_id));
  31   player_callbacks_map_.insert(std::make_pair(
  32       registration_id, PlayerCallbacks(new_key_cb, cdm_unset_cb)));
  33   return registration_id;
  34 }
  35
  36 void PlayerTrackerImpl::UnregisterPlayer(int registration_id) {
  37   DCHECK(thread_checker_.CalledOnValidThread());
  38   DCHECK(ContainsKey(player_callbacks_map_, registration_id))
  39       << registration_id;
  40   player_callbacks_map_.erase(registration_id);
  41 }
  42
  43 void PlayerTrackerImpl::NotifyNewKey() {
  44   DCHECK(thread_checker_.CalledOnValidThread());
  45   std::map<int, PlayerCallbacks>::iterator iter = player_callbacks_map_.begin();
  46   for (; iter != player_callbacks_map_.end(); ++iter)
  47     iter->second.new_key_cb.Run();
  48 }
  49
  50 void PlayerTrackerImpl::NotifyCdmUnset() {
  51   DCHECK(thread_checker_.CalledOnValidThread());
  52   std::map<int, PlayerCallbacks>::iterator iter = player_callbacks_map_.begin();
  53   for (; iter != player_callbacks_map_.end(); ++iter)
  54     iter->second.cdm_unset_cb.Run();
  55 }
  56
  57 }  // namespace media