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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/USBAlternateInterface.h" |
| 7 |
| 8 #include "bindings/core/v8/ExceptionState.h" |
| 9 #include "modules/webusb/USBEndpoint.h" |
| 10 #include "modules/webusb/USBInterface.h" |
| 11 |
| 12 namespace blink { |
| 13 |
| 14 // static |
| 15 USBAlternateInterface* USBAlternateInterface::create(const USBInterface* interfa
ce, size_t alternateIndex) |
| 16 { |
| 17 return new USBAlternateInterface(interface, alternateIndex); |
| 18 } |
| 19 |
| 20 // static |
| 21 USBAlternateInterface* USBAlternateInterface::create(const USBInterface* interfa
ce, size_t alternateIndex, ExceptionState& exceptionState) |
| 22 { |
| 23 if (alternateIndex < interface->info().alternates.size()) |
| 24 return new USBAlternateInterface(interface, alternateIndex); |
| 25 exceptionState.throwRangeError("Invalid alternate index."); |
| 26 return nullptr; |
| 27 } |
| 28 |
| 29 USBAlternateInterface::USBAlternateInterface(const USBInterface* interface, size
_t alternateIndex) |
| 30 : m_interface(interface) |
| 31 , m_alternateIndex(alternateIndex) |
| 32 { |
| 33 } |
| 34 |
| 35 const WebUSBDeviceInfo::AlternateInterface& USBAlternateInterface::info() const |
| 36 { |
| 37 const WebUSBDeviceInfo::Interface& interfaceInfo = m_interface->info(); |
| 38 ASSERT(m_alternateIndex < interfaceInfo.alternates.size()); |
| 39 return interfaceInfo.alternates[m_alternateIndex]; |
| 40 } |
| 41 |
| 42 uint8_t USBAlternateInterface::alternateSetting() const |
| 43 { |
| 44 return info().alternateSetting; |
| 45 } |
| 46 |
| 47 uint8_t USBAlternateInterface::interfaceClass() const |
| 48 { |
| 49 return info().classCode; |
| 50 } |
| 51 |
| 52 uint8_t USBAlternateInterface::interfaceSubclass() const |
| 53 { |
| 54 return info().subclassCode; |
| 55 } |
| 56 |
| 57 uint8_t USBAlternateInterface::interfaceProtocol() const |
| 58 { |
| 59 return info().protocolCode; |
| 60 } |
| 61 |
| 62 String USBAlternateInterface::interfaceName() const |
| 63 { |
| 64 return info().interfaceName; |
| 65 } |
| 66 |
| 67 HeapVector<Member<USBEndpoint>> USBAlternateInterface::endpoints() const |
| 68 { |
| 69 HeapVector<Member<USBEndpoint>> endpoints; |
| 70 for (size_t i = 0; i < info().endpoints.size(); ++i) |
| 71 endpoints.append(USBEndpoint::create(this, i)); |
| 72 return endpoints; |
| 73 } |
| 74 |
| 75 DEFINE_TRACE(USBAlternateInterface) |
| 76 { |
| 77 visitor->trace(m_interface); |
| 78 } |
| 79 |
| 80 } // namespace blink |
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