| // Copyright 2017 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "cobalt/dom/eme/media_key_system_access.h" |
| |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_refptr.h" |
| #include "cobalt/dom/eme/media_keys.h" |
| #include "cobalt/media/base/drm_system.h" |
| #include "cobalt/script/script_value_factory.h" |
| #include "cobalt/web/dom_exception.h" |
| |
| namespace cobalt { |
| namespace dom { |
| namespace eme { |
| |
| MediaKeySystemAccess::MediaKeySystemAccess( |
| const std::string& key_system, |
| const MediaKeySystemConfiguration& configuration, |
| script::ScriptValueFactory* script_value_factory) |
| : key_system_(key_system), |
| configuration_(configuration), |
| script_value_factory_(script_value_factory) {} |
| |
| // See |
| // https://www.w3.org/TR/encrypted-media/#dom-mediakeysystemaccess-createmediakeys. |
| script::Handle<MediaKeySystemAccess::InterfacePromise> |
| MediaKeySystemAccess::CreateMediaKeys( |
| script::EnvironmentSettings* settings) const { |
| TRACE_EVENT0("cobalt::dom::eme", "MediaKeySystemAccess::CreateMediaKeys()"); |
| // 1. Let promise be a new promise. |
| script::Handle<MediaKeySystemAccess::InterfacePromise> promise = |
| script_value_factory_->CreateInterfacePromise<scoped_refptr<MediaKeys>>(); |
| |
| // 2.5. Let instance be a new instance of the Key System implementation |
| // represented by this object's cdm implementation value. |
| scoped_refptr<media::DrmSystem> drm_system( |
| new media::DrmSystem(key_system_.c_str())); |
| |
| // 2.9. If any of the preceding steps failed, reject promise with a new |
| // DOMException whose name is the appropriate error name. |
| if (!drm_system->is_valid()) { |
| drm_system.reset(); |
| promise->Reject(new web::DOMException( |
| web::DOMException::kNotSupportedErr, |
| "Failed to load and initialize the Key System implementation.")); |
| return promise; |
| } |
| |
| // 2.10. Let media keys be a new MediaKeys object. |
| // 2.10.5. Let the cdm instance value be instance. |
| scoped_refptr<MediaKeys> media_keys( |
| new MediaKeys(settings, drm_system, script_value_factory_)); |
| |
| // 2.11. Resolve promise with media keys. |
| promise->Resolve(media_keys); |
| return promise; |
| } |
| |
| } // namespace eme |
| } // namespace dom |
| } // namespace cobalt |