1 | /* |
2 | * Copyright (C) 2016 Apple Inc. All rights reserved. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE, INC. ``AS IS'' AND ANY |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 | * |
25 | */ |
26 | |
27 | #include "config.h" |
28 | #include "MediaDevicesEnumerationRequest.h" |
29 | |
30 | #if ENABLE(MEDIA_STREAM) |
31 | |
32 | #include "CaptureDevice.h" |
33 | #include "Document.h" |
34 | #include "Frame.h" |
35 | #include "SecurityOrigin.h" |
36 | #include "UserMediaController.h" |
37 | |
38 | namespace WebCore { |
39 | |
40 | Ref<MediaDevicesEnumerationRequest> MediaDevicesEnumerationRequest::create(Document& document, CompletionHandler&& completionHandler) |
41 | { |
42 | return adoptRef(*new MediaDevicesEnumerationRequest(document, WTFMove(completionHandler))); |
43 | } |
44 | |
45 | MediaDevicesEnumerationRequest::MediaDevicesEnumerationRequest(ScriptExecutionContext& context, CompletionHandler&& completionHandler) |
46 | : ContextDestructionObserver(&context) |
47 | , m_completionHandler(WTFMove(completionHandler)) |
48 | { |
49 | } |
50 | |
51 | MediaDevicesEnumerationRequest::~MediaDevicesEnumerationRequest() = default; |
52 | |
53 | SecurityOrigin* MediaDevicesEnumerationRequest::userMediaDocumentOrigin() const |
54 | { |
55 | if (!scriptExecutionContext()) |
56 | return nullptr; |
57 | |
58 | return scriptExecutionContext()->securityOrigin(); |
59 | } |
60 | |
61 | SecurityOrigin* MediaDevicesEnumerationRequest::topLevelDocumentOrigin() const |
62 | { |
63 | if (!scriptExecutionContext()) |
64 | return nullptr; |
65 | |
66 | return &scriptExecutionContext()->topOrigin(); |
67 | } |
68 | |
69 | void MediaDevicesEnumerationRequest::contextDestroyed() |
70 | { |
71 | // Calling cancel() may destroy ourselves. |
72 | Ref<MediaDevicesEnumerationRequest> protectedThis(*this); |
73 | |
74 | cancel(); |
75 | ContextDestructionObserver::contextDestroyed(); |
76 | } |
77 | |
78 | void MediaDevicesEnumerationRequest::start() |
79 | { |
80 | ASSERT(scriptExecutionContext()); |
81 | |
82 | auto& document = downcast<Document>(*scriptExecutionContext()); |
83 | auto* controller = UserMediaController::from(document.page()); |
84 | if (!controller) |
85 | return; |
86 | |
87 | Ref<MediaDevicesEnumerationRequest> protectedThis(*this); |
88 | controller->enumerateMediaDevices(*this); |
89 | } |
90 | |
91 | void MediaDevicesEnumerationRequest::cancel() |
92 | { |
93 | m_completionHandler = nullptr; |
94 | } |
95 | |
96 | void MediaDevicesEnumerationRequest::setDeviceInfo(const Vector<CaptureDevice>& deviceList, const String& deviceIdentifierHashSalt, bool originHasPersistentAccess) |
97 | { |
98 | if (m_completionHandler) |
99 | m_completionHandler(deviceList, deviceIdentifierHashSalt, originHasPersistentAccess); |
100 | m_completionHandler = nullptr; |
101 | } |
102 | |
103 | } // namespace WebCore |
104 | |
105 | #endif // ENABLE(MEDIA_STREAM) |
106 | |