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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "config.h" |
| 6 #include "modules/webusb/NavigatorUSB.h" |
| 7 |
| 8 #include "core/frame/Navigator.h" |
| 9 #include "modules/webusb/USB.h" |
| 10 |
| 11 namespace blink { |
| 12 |
| 13 NavigatorUSB& NavigatorUSB::from(Navigator& navigator) |
| 14 { |
| 15 NavigatorUSB* supplement = static_cast<NavigatorUSB*>(HeapSupplement<Navigat
or>::from(navigator, supplementName())); |
| 16 if (!supplement) { |
| 17 supplement = new NavigatorUSB(navigator); |
| 18 provideTo(navigator, supplementName(), supplement); |
| 19 } |
| 20 return *supplement; |
| 21 } |
| 22 |
| 23 USB* NavigatorUSB::usb(Navigator& navigator) |
| 24 { |
| 25 return NavigatorUSB::from(navigator).usb(); |
| 26 } |
| 27 |
| 28 USB* NavigatorUSB::usb() |
| 29 { |
| 30 return m_usb; |
| 31 } |
| 32 |
| 33 DEFINE_TRACE(NavigatorUSB) |
| 34 { |
| 35 visitor->trace(m_usb); |
| 36 HeapSupplement<Navigator>::trace(visitor); |
| 37 } |
| 38 |
| 39 NavigatorUSB::NavigatorUSB(Navigator& navigator) |
| 40 { |
| 41 if (navigator.frame()) |
| 42 m_usb = USB::create(*navigator.frame()); |
| 43 } |
| 44 |
| 45 const char* NavigatorUSB::supplementName() |
| 46 { |
| 47 return "NavigatorUSB"; |
| 48 } |
| 49 |
| 50 } // namespace blink |
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