| // Copyright 2020 The Chromium Authors. All rights reserved. |
| // 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/core/html/media/media_source_attachment.h" |
| |
| #include "third_party/blink/renderer/core/html/media/media_source_registry.h" |
| |
| namespace blink { |
| |
| // static |
| URLRegistry* MediaSourceAttachment::registry_ = nullptr; |
| |
| // static |
| void MediaSourceAttachment::SetRegistry(MediaSourceRegistry* registry) { |
| DCHECK(IsMainThread()); |
| DCHECK(!registry_); |
| registry_ = registry; |
| } |
| |
| // static |
| scoped_refptr<MediaSourceAttachment> MediaSourceAttachment::LookupMediaSource( |
| const String& url) { |
| // The only expected caller is an HTMLMediaElement on the main thread. |
| DCHECK(IsMainThread()); |
| |
| if (!registry_ || url.IsEmpty()) |
| return nullptr; |
| |
| // This cast is safe because the only setter of |registry_| is SetRegistry(). |
| MediaSourceRegistry* ms_registry = |
| static_cast<MediaSourceRegistry*>(registry_); |
| |
| return ms_registry->LookupMediaSource(url); |
| } |
| |
| MediaSourceAttachment::MediaSourceAttachment() = default; |
| |
| MediaSourceAttachment::~MediaSourceAttachment() = default; |
| |
| } // namespace blink |
