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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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/imagecapture/ImageCapture.h" | 5 #include "modules/imagecapture/ImageCapture.h" |
| 6 | 6 |
| 7 #include "bindings/core/v8/CallbackPromiseAdapter.h" | 7 #include "bindings/core/v8/CallbackPromiseAdapter.h" |
| 8 #include "bindings/core/v8/ScriptPromiseResolver.h" | 8 #include "bindings/core/v8/ScriptPromiseResolver.h" |
| 9 #include "core/dom/DOMException.h" | 9 #include "core/dom/DOMException.h" |
| 10 #include "core/dom/ExceptionCode.h" | 10 #include "core/dom/ExceptionCode.h" |
| 11 #include "core/fileapi/Blob.h" | 11 #include "core/fileapi/Blob.h" |
| 12 #include "core/frame/ImageBitmap.h" | 12 #include "core/frame/ImageBitmap.h" |
| 13 #include "modules/EventTargetModules.h" | 13 #include "modules/EventTargetModules.h" |
| 14 #include "modules/imagecapture/MediaSettingsRange.h" | 14 #include "modules/imagecapture/MediaSettingsRange.h" |
| 15 #include "modules/imagecapture/PhotoCapabilities.h" | 15 #include "modules/imagecapture/PhotoCapabilities.h" |
| 16 #include "modules/mediastream/MediaStreamTrack.h" | 16 #include "modules/mediastream/MediaStreamTrack.h" |
| 17 #include "platform/mojo/MojoHelper.h" | 17 #include "platform/mojo/MojoHelper.h" |
| 18 #include "public/platform/Platform.h" | 18 #include "public/platform/Platform.h" |
| 19 #include "public/platform/ServiceRegistry.h" | 19 #include "public/platform/ServiceRegistry.h" |
| 20 #include "public/platform/WebImageCaptureFrameGrabber.h" | 20 #include "public/platform/WebImageCaptureFrameGrabber.h" |
| 21 #include "public/platform/WebMediaStreamTrack.h" | 21 #include "public/platform/WebMediaStreamTrack.h" |
| 22 #include "wtf/PtrUtil.h" |
| 22 | 23 |
| 23 namespace blink { | 24 namespace blink { |
| 24 | 25 |
| 25 namespace { | 26 namespace { |
| 26 | 27 |
| 27 const char kNoServiceError[] = "ImageCapture service unavailable."; | 28 const char kNoServiceError[] = "ImageCapture service unavailable."; |
| 28 | 29 |
| 29 bool trackIsInactive(const MediaStreamTrack& track) | 30 bool trackIsInactive(const MediaStreamTrack& track) |
| 30 { | 31 { |
| 31 // Spec instructs to return an exception if the Track's readyState() is not | 32 // Spec instructs to return an exception if the Track's readyState() is not |
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| 126 ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState)
; | 127 ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState)
; |
| 127 ScriptPromise promise = resolver->promise(); | 128 ScriptPromise promise = resolver->promise(); |
| 128 | 129 |
| 129 if (trackIsInactive(*m_streamTrack)) { | 130 if (trackIsInactive(*m_streamTrack)) { |
| 130 resolver->reject(DOMException::create(InvalidStateError, "The associated
Track is in an invalid state.")); | 131 resolver->reject(DOMException::create(InvalidStateError, "The associated
Track is in an invalid state.")); |
| 131 return promise; | 132 return promise; |
| 132 } | 133 } |
| 133 | 134 |
| 134 // Create |m_frameGrabber| the first time. | 135 // Create |m_frameGrabber| the first time. |
| 135 if (!m_frameGrabber) | 136 if (!m_frameGrabber) |
| 136 m_frameGrabber = adoptPtr(Platform::current()->createImageCaptureFrameGr
abber()); | 137 m_frameGrabber = wrapUnique(Platform::current()->createImageCaptureFrame
Grabber()); |
| 137 | 138 |
| 138 if (!m_frameGrabber) { | 139 if (!m_frameGrabber) { |
| 139 resolver->reject(DOMException::create(UnknownError, "Couldn't create pla
tform resources")); | 140 resolver->reject(DOMException::create(UnknownError, "Couldn't create pla
tform resources")); |
| 140 return promise; | 141 return promise; |
| 141 } | 142 } |
| 142 | 143 |
| 143 // The platform does not know about MediaStreamTrack, so we wrap it up. | 144 // The platform does not know about MediaStreamTrack, so we wrap it up. |
| 144 WebMediaStreamTrack track(m_streamTrack->component()); | 145 WebMediaStreamTrack track(m_streamTrack->component()); |
| 145 m_frameGrabber->grabFrame(&track, new CallbackPromiseAdapter<ImageBitmap, vo
id>(resolver)); | 146 m_frameGrabber->grabFrame(&track, new CallbackPromiseAdapter<ImageBitmap, vo
id>(resolver)); |
| 146 | 147 |
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| 202 | 203 |
| 203 DEFINE_TRACE(ImageCapture) | 204 DEFINE_TRACE(ImageCapture) |
| 204 { | 205 { |
| 205 visitor->trace(m_streamTrack); | 206 visitor->trace(m_streamTrack); |
| 206 visitor->trace(m_serviceRequests); | 207 visitor->trace(m_serviceRequests); |
| 207 EventTargetWithInlineData::trace(visitor); | 208 EventTargetWithInlineData::trace(visitor); |
| 208 ContextLifecycleObserver::trace(visitor); | 209 ContextLifecycleObserver::trace(visitor); |
| 209 } | 210 } |
| 210 | 211 |
| 211 } // namespace blink | 212 } // namespace blink |
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