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
38namespace WebCore {
39
40Ref<MediaDevicesEnumerationRequest> MediaDevicesEnumerationRequest::create(Document& document, CompletionHandler&& completionHandler)
41{
42 return adoptRef(*new MediaDevicesEnumerationRequest(document, WTFMove(completionHandler)));
43}
44
45MediaDevicesEnumerationRequest::MediaDevicesEnumerationRequest(ScriptExecutionContext& context, CompletionHandler&& completionHandler)
46 : ContextDestructionObserver(&context)
47 , m_completionHandler(WTFMove(completionHandler))
48{
49}
50
51MediaDevicesEnumerationRequest::~MediaDevicesEnumerationRequest() = default;
52
53SecurityOrigin* MediaDevicesEnumerationRequest::userMediaDocumentOrigin() const
54{
55 if (!scriptExecutionContext())
56 return nullptr;
57
58 return scriptExecutionContext()->securityOrigin();
59}
60
61SecurityOrigin* MediaDevicesEnumerationRequest::topLevelDocumentOrigin() const
62{
63 if (!scriptExecutionContext())
64 return nullptr;
65
66 return &scriptExecutionContext()->topOrigin();
67}
68
69void MediaDevicesEnumerationRequest::contextDestroyed()
70{
71 // Calling cancel() may destroy ourselves.
72 Ref<MediaDevicesEnumerationRequest> protectedThis(*this);
73
74 cancel();
75 ContextDestructionObserver::contextDestroyed();
76}
77
78void 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
91void MediaDevicesEnumerationRequest::cancel()
92{
93 m_completionHandler = nullptr;
94}
95
96void 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