| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "config.h" |
| #include "modules/mediastream/MediaDevices.h" |
| |
| #include "bindings/core/v8/ScriptPromise.h" |
| #include "bindings/core/v8/ScriptPromiseResolver.h" |
| #include "bindings/core/v8/ScriptState.h" |
| #include "core/dom/DOMException.h" |
| #include "core/dom/Document.h" |
| #include "core/dom/ExceptionCode.h" |
| #include "modules/mediastream/MediaStream.h" |
| #include "modules/mediastream/MediaStreamConstraints.h" |
| #include "modules/mediastream/NavigatorMediaStream.h" |
| #include "modules/mediastream/NavigatorUserMediaErrorCallback.h" |
| #include "modules/mediastream/NavigatorUserMediaSuccessCallback.h" |
| #include "modules/mediastream/UserMediaController.h" |
| |
| namespace blink { |
| |
| ScriptPromise MediaDevices::enumerateDevices(ScriptState* scriptState) |
| { |
| Document* document = toDocument(scriptState->executionContext()); |
| UserMediaController* userMedia = UserMediaController::from(document->frame()); |
| if (!userMedia) |
| return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError, "No media device controller available; is this a detached window?")); |
| |
| MediaDevicesRequest* request = MediaDevicesRequest::create(scriptState, userMedia); |
| return request->start(); |
| } |
| |
| namespace { |
| |
| class PromiseSuccessCallback final : public NavigatorUserMediaSuccessCallback { |
| public: |
| explicit PromiseSuccessCallback(ScriptPromiseResolver* resolver) |
| : m_resolver(resolver) |
| { |
| } |
| |
| ~PromiseSuccessCallback() |
| { |
| } |
| |
| void handleEvent(MediaStream* stream) |
| { |
| m_resolver->resolve(stream); |
| } |
| |
| DEFINE_INLINE_VIRTUAL_TRACE() |
| { |
| visitor->trace(m_resolver); |
| NavigatorUserMediaSuccessCallback::trace(visitor); |
| } |
| |
| private: |
| Member<ScriptPromiseResolver> m_resolver; |
| }; |
| |
| class PromiseErrorCallback final : public NavigatorUserMediaErrorCallback { |
| public: |
| explicit PromiseErrorCallback(ScriptPromiseResolver* resolver) |
| : m_resolver(resolver) |
| { |
| } |
| |
| ~PromiseErrorCallback() |
| { |
| } |
| |
| void handleEvent(NavigatorUserMediaError* error) |
| { |
| m_resolver->reject(error); |
| } |
| |
| DEFINE_INLINE_VIRTUAL_TRACE() |
| { |
| visitor->trace(m_resolver); |
| NavigatorUserMediaErrorCallback::trace(visitor); |
| } |
| |
| private: |
| Member<ScriptPromiseResolver> m_resolver; |
| }; |
| |
| } // namespace |
| |
| ScriptPromise MediaDevices::getUserMedia(ScriptState* scriptState, const MediaStreamConstraints& options, ExceptionState& exceptionState) |
| { |
| ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState); |
| |
| NavigatorUserMediaSuccessCallback* successCallback = new PromiseSuccessCallback(resolver); |
| NavigatorUserMediaErrorCallback* errorCallback = new PromiseErrorCallback(resolver); |
| |
| Document* document = toDocument(scriptState->executionContext()); |
| UserMediaController* userMedia = UserMediaController::from(document->frame()); |
| if (!userMedia) |
| return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError, "No media device controller available; is this a detached window?")); |
| |
| UserMediaRequest* request = UserMediaRequest::create(document, userMedia, options, successCallback, errorCallback, exceptionState); |
| if (!request) { |
| ASSERT(exceptionState.hadException()); |
| return exceptionState.reject(scriptState); |
| } |
| |
| String errorMessage; |
| if (!document->isPrivilegedContext(errorMessage)) { |
| return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError, errorMessage)); |
| } |
| |
| request->start(); |
| return resolver->promise(); |
| } |
| |
| } // namespace blink |