1/*
2 * Copyright (C) 2012 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef WebMediaConstraints_h
32#define WebMediaConstraints_h
33
34#include "WebCommon.h"
35#include "WebNonCopyable.h"
36#include "WebPrivatePtr.h"
37#include "WebString.h"
38#include "WebVector.h"
39
40namespace WebCore {
41struct MediaConstraint;
42class MediaConstraints;
43}
44
45namespace WebKit {
46
47struct WebMediaConstraint {
48    WebMediaConstraint()
49    {
50    }
51
52    WebMediaConstraint(WebString name, WebString value)
53        : m_name(name)
54        , m_value(value)
55    {
56    }
57
58#if WEBKIT_IMPLEMENTATION
59    WebMediaConstraint(const WebCore::MediaConstraint&);
60#endif
61
62    WebString m_name;
63    WebString m_value;
64};
65
66class WebMediaConstraints {
67public:
68    WebMediaConstraints() { }
69    WebMediaConstraints(const WebMediaConstraints& other) { assign(other); }
70    ~WebMediaConstraints() { reset(); }
71
72    WebMediaConstraints& operator=(const WebMediaConstraints& other)
73    {
74        assign(other);
75        return *this;
76    }
77
78    WEBKIT_EXPORT void assign(const WebMediaConstraints&);
79
80    WEBKIT_EXPORT void reset();
81    bool isNull() const { return m_private.isNull(); }
82
83    WEBKIT_EXPORT void getMandatoryConstraints(WebVector<WebMediaConstraint>&) const;
84    WEBKIT_EXPORT void getOptionalConstraints(WebVector<WebMediaConstraint>&) const;
85
86    WEBKIT_EXPORT bool getMandatoryConstraintValue(const WebString& name, WebString& value) const;
87    WEBKIT_EXPORT bool getOptionalConstraintValue(const WebString& name, WebString& value) const;
88
89#if WEBKIT_IMPLEMENTATION
90    WebMediaConstraints(const WTF::PassRefPtr<WebCore::MediaConstraints>&);
91    WebMediaConstraints(WebCore::MediaConstraints*);
92#endif
93
94private:
95    WebPrivatePtr<WebCore::MediaConstraints> m_private;
96};
97
98} // namespace WebKit
99
100#endif // WebMediaConstraints_h
101