chrome/browser/media/router/media_source.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SOURCE_H_
   6 #define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SOURCE_H_
   7
   8 #include <ostream>
   9 #include <string>
  10
  11 #include "base/hash.h"
  12
  13 namespace media_router {
  14
  15
  16 class MediaSource {
  17  public:
  18   using Id = std::string;
  19
  20   explicit MediaSource(const MediaSource::Id& id);
  21   MediaSource();
  22   ~MediaSource();
  23
  24   // Gets the ID of the media source.
  25   MediaSource::Id id() const;
  26
  27   // Returns true if two MediaSource objects use the same media ID.
  28   bool Equals(const MediaSource& other) const;
  29
  30   // Returns true if a MediaSource is empty or uninitialized.
  31   bool Empty() const;
  32
  33   // Used for logging.
  34   std::string ToString() const;
  35
  36   // Hash operator for hash containers.
  37   struct Hash {
  38     size_t operator()(const MediaSource& source) const {
  39       return base::Hash(source.id());
  40     }
  41   };
  42
  43  private:
  44   MediaSource::Id id_;
  45 };
  46
  47 }  // namespace media_router
  48
  49 #endif  // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SOURCE_H_