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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/USB.h" |
| 7 |
| 8 #include "bindings/core/v8/CallbackPromiseAdapter.h" |
| 9 #include "bindings/core/v8/ScriptPromise.h" |
| 10 #include "bindings/core/v8/ScriptPromiseResolver.h" |
| 11 #include "core/dom/DOMException.h" |
| 12 #include "core/dom/Document.h" |
| 13 #include "core/dom/ExceptionCode.h" |
| 14 #include "modules/webusb/USBDevice.h" |
| 15 #include "modules/webusb/USBDeviceEnumerationOptions.h" |
| 16 #include "modules/webusb/USBDeviceFilter.h" |
| 17 #include "modules/webusb/USBError.h" |
| 18 #include "public/platform/Platform.h" |
| 19 #include "public/platform/WebVector.h" |
| 20 #include "public/platform/modules/webusb/WebUSBClient.h" |
| 21 #include "public/platform/modules/webusb/WebUSBDeviceEnumerationOptions.h" |
| 22 #include "public/platform/modules/webusb/WebUSBDeviceFilter.h" |
| 23 #include "public/platform/modules/webusb/WebUSBError.h" |
| 24 |
| 25 namespace blink { |
| 26 namespace { |
| 27 |
| 28 void convertDeviceEnumerationOptions(const USBDeviceEnumerationOptions& options,
WebUSBDeviceEnumerationOptions* webOptions) |
| 29 { |
| 30 ASSERT(options.hasFilters()); |
| 31 webOptions->filters = WebVector<WebUSBDeviceFilter>(options.filters().size()
); |
| 32 for (size_t i = 0; i < options.filters().size(); ++i) { |
| 33 const USBDeviceFilter& filter = options.filters()[i]; |
| 34 WebUSBDeviceFilter& webFilter = webOptions->filters[i]; |
| 35 webFilter.hasVendorID = filter.hasVendorId(); |
| 36 if (filter.hasVendorId()) |
| 37 webFilter.vendorID = filter.vendorId(); |
| 38 webFilter.hasProductID = filter.hasProductId(); |
| 39 if (filter.hasProductId()) |
| 40 webFilter.productID = filter.productId(); |
| 41 webFilter.hasClassCode = filter.hasClassCode(); |
| 42 if (filter.hasClassCode()) |
| 43 webFilter.classCode = filter.classCode(); |
| 44 webFilter.hasSubclassCode = filter.hasSubclassCode(); |
| 45 if (filter.hasSubclassCode()) |
| 46 webFilter.subclassCode = filter.subclassCode(); |
| 47 webFilter.hasProtocolCode = filter.hasProtocolCode(); |
| 48 if (filter.hasProtocolCode()) |
| 49 webFilter.protocolCode = filter.protocolCode(); |
| 50 } |
| 51 } |
| 52 |
| 53 // Allows using a CallbackPromiseAdapter with a WebVector to resolve the |
| 54 // getDevices() promise with a HeapVector owning USBDevices. |
| 55 class DeviceArray { |
| 56 WTF_MAKE_NONCOPYABLE(DeviceArray); |
| 57 public: |
| 58 using WebType = WebVector<WebUSBDevice*>; |
| 59 |
| 60 static HeapVector<Member<USBDevice>> take(ScriptPromiseResolver*, PassOwnPtr
<WebType> webDevices) |
| 61 { |
| 62 HeapVector<Member<USBDevice>> devices; |
| 63 for (const auto webDevice : *webDevices) |
| 64 devices.append(USBDevice::create(adoptPtr(webDevice))); |
| 65 return devices; |
| 66 } |
| 67 |
| 68 private: |
| 69 DeviceArray() = delete; |
| 70 }; |
| 71 |
| 72 } // namespace |
| 73 |
| 74 USB::USB(LocalFrame& frame) |
| 75 : m_controller(USBController::from(frame)) |
| 76 { |
| 77 } |
| 78 |
| 79 ScriptPromise USB::getDevices(ScriptState* scriptState, const USBDeviceEnumerati
onOptions& options) |
| 80 { |
| 81 WebUSBClient* client = m_controller->client(); |
| 82 if (!client) |
| 83 return ScriptPromise::rejectWithDOMException(scriptState, DOMException::
create(NotSupportedError)); |
| 84 |
| 85 RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::
create(scriptState); |
| 86 ScriptPromise promise = resolver->promise(); |
| 87 |
| 88 WebUSBDeviceEnumerationOptions webOptions; |
| 89 convertDeviceEnumerationOptions(options, &webOptions); |
| 90 client->getDevices(webOptions, new CallbackPromiseAdapter<DeviceArray, USBEr
ror>(resolver)); |
| 91 |
| 92 return promise; |
| 93 } |
| 94 |
| 95 DEFINE_TRACE(USB) |
| 96 { |
| 97 #if ENABLE(OILPAN) |
| 98 visitor->trace(m_controller); |
| 99 #endif |
| 100 } |
| 101 |
| 102 } // namespace blink |
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