| // Copyright 2016 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/fullscreen/scoped_allow_fullscreen.h" |
| |
| #include "third_party/blink/renderer/platform/wtf/assertions.h" |
| #include "third_party/blink/renderer/platform/wtf/wtf.h" |
| |
| namespace blink { |
| |
| base::Optional<ScopedAllowFullscreen::Reason> ScopedAllowFullscreen::reason_; |
| |
| ScopedAllowFullscreen::ScopedAllowFullscreen(Reason reason) { |
| DCHECK(IsMainThread()); |
| previous_reason_ = reason_; |
| reason_ = reason; |
| } |
| |
| ScopedAllowFullscreen::~ScopedAllowFullscreen() { |
| DCHECK(IsMainThread()); |
| reason_ = previous_reason_; |
| } |
| |
| // static |
| base::Optional<ScopedAllowFullscreen::Reason> |
| ScopedAllowFullscreen::FullscreenAllowedReason() { |
| DCHECK(IsMainThread()); |
| return reason_; |
| } |
| |
| } // namespace blink |
