media_key_system_access.cc | Explore in Territory

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/modules/encryptedmedia/media_key_system_access.h"

#include <memory>
#include <utility>

#include "base/memory/ptr_util.h"
#include "base/numerics/safe_conversions.h"
#include "media/base/eme_constants.h"
#include "services/metrics/public/cpp/ukm_builders.h"
#include "services/metrics/public/cpp/ukm_recorder.h"
#include "third_party/blink/public/platform/web_content_decryption_module.h"
#include "third_party/blink/public/platform/web_encrypted_media_types.h"
#include "third_party/blink/public/platform/web_media_key_system_configuration.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_media_key_system_media_capability.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/dom_exception.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/modules/encryptedmedia/content_decryption_module_result_promise.h"
#include "third_party/blink/renderer/modules/encryptedmedia/encrypted_media_utils.h"
#include "third_party/blink/renderer/modules/encryptedmedia/media_key_session.h"
#include "third_party/blink/renderer/modules/encryptedmedia/media_keys.h"
#include "third_party/blink/renderer/platform/bindings/script_state.h"
#include "third_party/blink/renderer/platform/timer.h"

namespace blink {

namespace {

// This class wraps the promise resolver used when creating MediaKeys
// and is passed to Chromium to fullfill the promise. This implementation of
// completeWithCdm() will resolve the promise with a new MediaKeys object,
// while completeWithError() will reject the promise with an exception.
// All other complete methods are not expected to be called, and will
// reject the promise.
class NewCdmResultPromise : public ContentDecryptionModuleResultPromise { … };

// These methods are the inverses of those with the same names in
// NavigatorRequestMediaKeySystemAccess.
Vector<String> ConvertInitDataTypes(
    const WebVector<media::EmeInitDataType>& init_data_types) { … }

HeapVector<Member<MediaKeySystemMediaCapability>> ConvertCapabilities(
    const WebVector<WebMediaKeySystemMediaCapability>& capabilities) { … }

Vector<String> ConvertSessionTypes(
    const WebVector<WebEncryptedMediaSessionType>& session_types) { … }

void ReportMetrics(ExecutionContext* execution_context,
                   const String& key_system) { … }

}  // namespace

MediaKeySystemAccess::MediaKeySystemAccess(
    std::unique_ptr<WebContentDecryptionModuleAccess> access)
    : … { … }

MediaKeySystemAccess::~MediaKeySystemAccess() = default;

MediaKeySystemConfiguration* MediaKeySystemAccess::getConfiguration() const { … }

ScriptPromise<MediaKeys> MediaKeySystemAccess::createMediaKeys(
    ScriptState* script_state) { … }

}  // namespace blink
chromium/third_party/blink/renderer/modules/encryptedmedia/media_key_system_access.cc
