| // Copyright 2015 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/modules/webusb/navigator_usb.h" |
| |
| #include "third_party/blink/renderer/core/dom/document.h" |
| #include "third_party/blink/renderer/core/frame/local_frame.h" |
| #include "third_party/blink/renderer/core/frame/navigator.h" |
| #include "third_party/blink/renderer/modules/webusb/usb.h" |
| |
| namespace blink { |
| |
| NavigatorUSB& NavigatorUSB::From(Navigator& navigator) { |
| NavigatorUSB* supplement = |
| Supplement<Navigator>::From<NavigatorUSB>(navigator); |
| if (!supplement) { |
| supplement = MakeGarbageCollected<NavigatorUSB>(navigator); |
| ProvideTo(navigator, supplement); |
| } |
| return *supplement; |
| } |
| |
| USB* NavigatorUSB::usb(Navigator& navigator) { |
| return NavigatorUSB::From(navigator).usb(); |
| } |
| |
| USB* NavigatorUSB::usb() { |
| return usb_; |
| } |
| |
| void NavigatorUSB::Trace(blink::Visitor* visitor) { |
| visitor->Trace(usb_); |
| Supplement<Navigator>::Trace(visitor); |
| } |
| |
| NavigatorUSB::NavigatorUSB(Navigator& navigator) { |
| if (navigator.GetFrame()) { |
| DCHECK(navigator.GetFrame()->GetDocument()); |
| usb_ = USB::Create(*navigator.GetFrame()->GetDocument()); |
| } |
| } |
| |
| const char NavigatorUSB::kSupplementName[] = "NavigatorUSB"; |
| |
| } // namespace blink |