third_party/WebKit/Source/platform/exported/WebMediaConstraints.cpp

   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 #include "config.h"
  32
  33 #include "public/platform/WebMediaConstraints.h"
  34
  35 #include "wtf/PassRefPtr.h"
  36 #include "wtf/RefCounted.h"
  37
  38 namespace blink {
  39
  40 class WebMediaConstraintsPrivate final : public RefCounted<WebMediaConstraintsPrivate> {
  41 public:
  42     static PassRefPtr<WebMediaConstraintsPrivate> create();
  43     static PassRefPtr<WebMediaConstraintsPrivate> create(const WebVector<WebMediaConstraint>& optional, const WebVector<WebMediaConstraint>& mandatory);
  44
  45     void getOptionalConstraints(WebVector<WebMediaConstraint>&);
  46     void getMandatoryConstraints(WebVector<WebMediaConstraint>&);
  47     bool getMandatoryConstraintValue(const WebString& name, WebString& value);
  48     bool getOptionalConstraintValue(const WebString& name, WebString& value);
  49
  50 private:
  51     WebMediaConstraintsPrivate(const WebVector<WebMediaConstraint>& optional, const WebVector<WebMediaConstraint>& mandatory);
  52
  53     WebVector<WebMediaConstraint> m_optional;
  54     WebVector<WebMediaConstraint> m_mandatory;
  55 };
  56
  57 PassRefPtr<WebMediaConstraintsPrivate> WebMediaConstraintsPrivate::create()
  58 {
  59     WebVector<WebMediaConstraint> optional;
  60     WebVector<WebMediaConstraint> mandatory;
  61     return adoptRef(new WebMediaConstraintsPrivate(optional, mandatory));
  62 }
  63
  64 PassRefPtr<WebMediaConstraintsPrivate> WebMediaConstraintsPrivate::create(const WebVector<WebMediaConstraint>& optional, const WebVector<WebMediaConstraint>& mandatory)
  65 {
  66     return adoptRef(new WebMediaConstraintsPrivate(optional, mandatory));
  67 }
  68
  69 WebMediaConstraintsPrivate::WebMediaConstraintsPrivate(const WebVector<WebMediaConstraint>& optional, const WebVector<WebMediaConstraint>& mandatory)
  70     : m_optional(optional)
  71     , m_mandatory(mandatory)
  72 {
  73 }
  74
  75 void WebMediaConstraintsPrivate::getOptionalConstraints(WebVector<WebMediaConstraint>& constraints)
  76 {
  77     constraints = m_optional;
  78 }
  79
  80 void WebMediaConstraintsPrivate::getMandatoryConstraints(WebVector<WebMediaConstraint>& constraints)
  81 {
  82     constraints = m_mandatory;
  83 }
  84
  85 bool WebMediaConstraintsPrivate::getMandatoryConstraintValue(const WebString& name, WebString& value)
  86 {
  87     for (size_t i = 0; i < m_mandatory.size(); ++i) {
  88         if (m_mandatory[i].m_name == name) {
  89             value = m_mandatory[i].m_value;
  90             return true;
  91         }
  92     }
  93     return false;
  94 }
  95
  96 bool WebMediaConstraintsPrivate::getOptionalConstraintValue(const WebString& name, WebString& value)
  97 {
  98     for (size_t i = 0; i < m_optional.size(); ++i) {
  99         if (m_optional[i].m_name == name) {
 100             value = m_optional[i].m_value;
 101             return true;
 102         }
 103     }
 104     return false;
 105 }
 106
 107 // WebMediaConstraints
 108
 109 void WebMediaConstraints::assign(const WebMediaConstraints& other)
 110 {
 111     m_private = other.m_private;
 112 }
 113
 114 void WebMediaConstraints::reset()
 115 {
 116     m_private.reset();
 117 }
 118
 119 void WebMediaConstraints::getMandatoryConstraints(WebVector<WebMediaConstraint>& constraints) const
 120 {
 121     ASSERT(!isNull());
 122     m_private->getMandatoryConstraints(constraints);
 123 }
 124
 125 void WebMediaConstraints::getOptionalConstraints(WebVector<WebMediaConstraint>& constraints) const
 126 {
 127     ASSERT(!isNull());
 128     m_private->getOptionalConstraints(constraints);
 129 }
 130
 131 bool WebMediaConstraints::getMandatoryConstraintValue(const WebString& name, WebString& value) const
 132 {
 133     ASSERT(!isNull());
 134     return m_private->getMandatoryConstraintValue(name, value);
 135 }
 136
 137 bool WebMediaConstraints::getOptionalConstraintValue(const WebString& name, WebString& value) const
 138 {
 139     ASSERT(!isNull());
 140     return m_private->getOptionalConstraintValue(name, value);
 141 }
 142
 143 void WebMediaConstraints::initialize()
 144 {
 145     ASSERT(isNull());
 146     m_private = WebMediaConstraintsPrivate::create();
 147 }
 148
 149 void WebMediaConstraints::initialize(const WebVector<WebMediaConstraint>& optional, const WebVector<WebMediaConstraint>& mandatory)
 150 {
 151     ASSERT(isNull());
 152     m_private = WebMediaConstraintsPrivate::create(optional, mandatory);
 153 }
 154
 155 } // namespace blink
 156