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 40 namespace blink { 41 42 class WebMediaConstraintsPrivate; 43 44 struct WebMediaConstraint { WebMediaConstraintWebMediaConstraint45 WebMediaConstraint() 46 { 47 } 48 WebMediaConstraintWebMediaConstraint49 WebMediaConstraint(WebString name, WebString value) 50 : m_name(name) 51 , m_value(value) 52 { 53 } 54 55 WebString m_name; 56 WebString m_value; 57 }; 58 59 class WebMediaConstraints { 60 public: WebMediaConstraints()61 WebMediaConstraints() { } WebMediaConstraints(const WebMediaConstraints & other)62 WebMediaConstraints(const WebMediaConstraints& other) { assign(other); } ~WebMediaConstraints()63 ~WebMediaConstraints() { reset(); } 64 65 WebMediaConstraints& operator=(const WebMediaConstraints& other) 66 { 67 assign(other); 68 return *this; 69 } 70 71 BLINK_PLATFORM_EXPORT void assign(const WebMediaConstraints&); 72 73 BLINK_PLATFORM_EXPORT void reset(); isNull()74 bool isNull() const { return m_private.isNull(); } 75 76 BLINK_PLATFORM_EXPORT void getOptionalConstraints(WebVector<WebMediaConstraint>&) const; 77 BLINK_PLATFORM_EXPORT void getMandatoryConstraints(WebVector<WebMediaConstraint>&) const; 78 79 BLINK_PLATFORM_EXPORT bool getOptionalConstraintValue(const WebString& name, WebString& value) const; 80 BLINK_PLATFORM_EXPORT bool getMandatoryConstraintValue(const WebString& name, WebString& value) const; 81 82 BLINK_PLATFORM_EXPORT void initialize(); 83 BLINK_PLATFORM_EXPORT void initialize(const WebVector<WebMediaConstraint>& optional, const WebVector<WebMediaConstraint>& mandatory); 84 85 private: 86 WebPrivatePtr<WebMediaConstraintsPrivate> m_private; 87 }; 88 89 } // namespace blink 90 91 #endif // WebMediaConstraints_h 92