| // Copyright 2017 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 "modules/media_capabilities/NavigatorMediaCapabilities.h" |
| |
| #include "modules/media_capabilities/MediaCapabilities.h" |
| #include "platform/Supplementable.h" |
| |
| namespace blink { |
| |
| MediaCapabilities* NavigatorMediaCapabilities::mediaCapabilities( |
| Navigator& navigator) { |
| NavigatorMediaCapabilities& self = |
| NavigatorMediaCapabilities::From(navigator); |
| if (!self.capabilities_) |
| self.capabilities_ = new MediaCapabilities(); |
| return self.capabilities_.Get(); |
| } |
| |
| DEFINE_TRACE(NavigatorMediaCapabilities) { |
| visitor->Trace(capabilities_); |
| Supplement<Navigator>::Trace(visitor); |
| } |
| |
| NavigatorMediaCapabilities::NavigatorMediaCapabilities(Navigator& navigator) |
| : Supplement<Navigator>(navigator) {} |
| |
| NavigatorMediaCapabilities& NavigatorMediaCapabilities::From( |
| Navigator& navigator) { |
| NavigatorMediaCapabilities* supplement = |
| static_cast<NavigatorMediaCapabilities*>( |
| Supplement<Navigator>::From(navigator, SupplementName())); |
| if (!supplement) { |
| supplement = new NavigatorMediaCapabilities(navigator); |
| ProvideTo(navigator, SupplementName(), supplement); |
| } |
| return *supplement; |
| } |
| |
| const char* NavigatorMediaCapabilities::SupplementName() { |
| return "NavigatorMediaCapabilities"; |
| } |
| |
| } // namespace blink |
