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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "modules/webusb/USBDevice.h" | 5 #include "modules/webusb/USBDevice.h" |
6 | 6 |
7 #include "bindings/core/v8/ScriptPromise.h" | 7 #include "bindings/core/v8/ScriptPromise.h" |
8 #include "bindings/core/v8/ScriptPromiseResolver.h" | 8 #include "bindings/core/v8/ScriptPromiseResolver.h" |
9 #include "bindings/core/v8/ToV8ForCore.h" | 9 #include "bindings/core/v8/ToV8ForCore.h" |
10 #include "core/dom/DOMArrayBuffer.h" | 10 #include "core/dom/DOMArrayBuffer.h" |
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274 } | 274 } |
275 | 275 |
276 ScriptPromise USBDevice::selectAlternateInterface(ScriptState* script_state, | 276 ScriptPromise USBDevice::selectAlternateInterface(ScriptState* script_state, |
277 uint8_t interface_number, | 277 uint8_t interface_number, |
278 uint8_t alternate_setting) { | 278 uint8_t alternate_setting) { |
279 ScriptPromiseResolver* resolver = ScriptPromiseResolver::Create(script_state); | 279 ScriptPromiseResolver* resolver = ScriptPromiseResolver::Create(script_state); |
280 ScriptPromise promise = resolver->Promise(); | 280 ScriptPromise promise = resolver->Promise(); |
281 if (EnsureInterfaceClaimed(interface_number, resolver)) { | 281 if (EnsureInterfaceClaimed(interface_number, resolver)) { |
282 // TODO(reillyg): This is duplicated work. | 282 // TODO(reillyg): This is duplicated work. |
283 int interface_index = FindInterfaceIndex(interface_number); | 283 int interface_index = FindInterfaceIndex(interface_number); |
284 ASSERT(interface_index != -1); | 284 DCHECK_NE(interface_index, -1); |
285 int alternate_index = | 285 int alternate_index = |
286 FindAlternateIndex(interface_index, alternate_setting); | 286 FindAlternateIndex(interface_index, alternate_setting); |
287 if (alternate_index == -1) { | 287 if (alternate_index == -1) { |
288 resolver->Reject(DOMException::Create(kNotFoundError, | 288 resolver->Reject(DOMException::Create(kNotFoundError, |
289 "The alternate setting provided is " | 289 "The alternate setting provided is " |
290 "not supported by the device in " | 290 "not supported by the device in " |
291 "its current configuration.")); | 291 "its current configuration.")); |
292 } else { | 292 } else { |
293 // Mark this old alternate interface's endpoints unavailable while | 293 // Mark this old alternate interface's endpoints unavailable while |
294 // the change is in progress. | 294 // the change is in progress. |
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479 int USBDevice::FindConfigurationIndex(uint8_t configuration_value) const { | 479 int USBDevice::FindConfigurationIndex(uint8_t configuration_value) const { |
480 const auto& configurations = Info().configurations; | 480 const auto& configurations = Info().configurations; |
481 for (size_t i = 0; i < configurations.size(); ++i) { | 481 for (size_t i = 0; i < configurations.size(); ++i) { |
482 if (configurations[i]->configuration_value == configuration_value) | 482 if (configurations[i]->configuration_value == configuration_value) |
483 return i; | 483 return i; |
484 } | 484 } |
485 return -1; | 485 return -1; |
486 } | 486 } |
487 | 487 |
488 int USBDevice::FindInterfaceIndex(uint8_t interface_number) const { | 488 int USBDevice::FindInterfaceIndex(uint8_t interface_number) const { |
489 ASSERT(configuration_index_ != -1); | 489 DCHECK_NE(configuration_index_, -1); |
490 const auto& interfaces = | 490 const auto& interfaces = |
491 Info().configurations[configuration_index_]->interfaces; | 491 Info().configurations[configuration_index_]->interfaces; |
492 for (size_t i = 0; i < interfaces.size(); ++i) { | 492 for (size_t i = 0; i < interfaces.size(); ++i) { |
493 if (interfaces[i]->interface_number == interface_number) | 493 if (interfaces[i]->interface_number == interface_number) |
494 return i; | 494 return i; |
495 } | 495 } |
496 return -1; | 496 return -1; |
497 } | 497 } |
498 | 498 |
499 int USBDevice::FindAlternateIndex(size_t interface_index, | 499 int USBDevice::FindAlternateIndex(size_t interface_index, |
500 uint8_t alternate_setting) const { | 500 uint8_t alternate_setting) const { |
501 ASSERT(configuration_index_ != -1); | 501 DCHECK_NE(configuration_index_, -1); |
502 const auto& alternates = Info() | 502 const auto& alternates = Info() |
503 .configurations[configuration_index_] | 503 .configurations[configuration_index_] |
504 ->interfaces[interface_index] | 504 ->interfaces[interface_index] |
505 ->alternates; | 505 ->alternates; |
506 for (size_t i = 0; i < alternates.size(); ++i) { | 506 for (size_t i = 0; i < alternates.size(); ++i) { |
507 if (alternates[i]->alternate_setting == alternate_setting) | 507 if (alternates[i]->alternate_setting == alternate_setting) |
508 return i; | 508 return i; |
509 } | 509 } |
510 return -1; | 510 return -1; |
511 } | 511 } |
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925 | 925 |
926 bool USBDevice::MarkRequestComplete(ScriptPromiseResolver* resolver) { | 926 bool USBDevice::MarkRequestComplete(ScriptPromiseResolver* resolver) { |
927 auto request_entry = device_requests_.find(resolver); | 927 auto request_entry = device_requests_.find(resolver); |
928 if (request_entry == device_requests_.end()) | 928 if (request_entry == device_requests_.end()) |
929 return false; | 929 return false; |
930 device_requests_.erase(request_entry); | 930 device_requests_.erase(request_entry); |
931 return true; | 931 return true; |
932 } | 932 } |
933 | 933 |
934 } // namespace blink | 934 } // namespace blink |
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