1/*
2 * Copyright (C) 2014 Google 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 GOOGLE 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 GOOGLE 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#include "config.h"
27
28#include "modules/mediastream/MediaDevicesRequest.h"
29
30#include "bindings/core/v8/ExceptionState.h"
31#include "core/dom/Document.h"
32#include "modules/mediastream/UserMediaController.h"
33
34namespace blink {
35
36MediaDevicesRequest* MediaDevicesRequest::create(ExecutionContext* context, UserMediaController* controller, MediaDeviceInfoCallback* callback, ExceptionState& exceptionState)
37{
38    MediaDevicesRequest* request = new MediaDevicesRequest(context, controller, callback);
39    request->suspendIfNeeded();
40    return request;
41}
42
43MediaDevicesRequest::MediaDevicesRequest(ExecutionContext* context, UserMediaController* controller, MediaDeviceInfoCallback* callback)
44    : ActiveDOMObject(context)
45    , m_controller(controller)
46    , m_callback(callback)
47{
48}
49
50MediaDevicesRequest::~MediaDevicesRequest()
51{
52}
53
54Document* MediaDevicesRequest::ownerDocument()
55{
56    if (ExecutionContext* context = executionContext()) {
57        return toDocument(context);
58    }
59
60    return 0;
61}
62
63void MediaDevicesRequest::start()
64{
65    if (m_controller)
66        m_controller->requestMediaDevices(this);
67}
68
69void MediaDevicesRequest::succeed(const MediaDeviceInfoVector& mediaDevices)
70{
71    if (!executionContext() || !m_callback)
72        return;
73
74    m_callback->handleEvent(mediaDevices);
75}
76
77void MediaDevicesRequest::stop()
78{
79    m_callback.clear();
80    m_controller = 0;
81}
82
83void MediaDevicesRequest::trace(Visitor* visitor)
84{
85    visitor->trace(m_callback);
86}
87
88} // namespace blink
89