Home | History | Annotate | Download | only in platform 
      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 {
     45     WebMediaConstraint()
     46     {
     47     }
     48 
     49     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:
     61     WebMediaConstraints() { }
     62     WebMediaConstraints(const WebMediaConstraints& other) { assign(other); }
     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();
     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