[Media Router] Add MediaSink subtypes

chrome/browser/media/router/mojo/media_router_struct_traits.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_MEDIA_ROUTER_MOJO_MEDIA_ROUTER_STRUCT_TRAITS_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_MOJO_MEDIA_ROUTER_STRUCT_TRAITS_H_
 
 #include <string>
 
 #include "chrome/browser/media/router/issue.h"
+#include "chrome/browser/media/router/media_sink.h"
 #include "chrome/browser/media/router/mojo/media_router.mojom.h"
+#include "chrome/browser/media/router/typed_media_sink.h"
 #include "mojo/common/common_custom_types_struct_traits.h"
 
 namespace mojo {
 
 template <>
 struct EnumTraits<media_router::mojom::Issue::ActionType,
                   media_router::IssueInfo::Action> {
   static media_router::mojom::Issue::ActionType ToMojom(
       media_router::IssueInfo::Action action) {
     switch (action) {
@@ skipping 48 matching lines @@
         return true;
       case media_router::mojom::Issue::Severity::NOTIFICATION:
         *output = media_router::IssueInfo::Severity::NOTIFICATION;
         return true;
     }
     return false;
   }
 };
 
 template <>
+struct EnumTraits<media_router::mojom::MediaSink::IconType,
+                  media_router::MediaSink::IconType> {
+  static media_router::mojom::MediaSink::IconType ToMojom(
+      media_router::MediaSink::IconType type) {
+    switch (type) {
+      case media_router::MediaSink::CAST:
+        return media_router::mojom::MediaSink::IconType::CAST;
+      case media_router::MediaSink::CAST_AUDIO:
+        return media_router::mojom::MediaSink::IconType::CAST_AUDIO;
+      case media_router::MediaSink::CAST_AUDIO_GROUP:
+        return media_router::mojom::MediaSink::IconType::CAST_AUDIO_GROUP;
+      case media_router::MediaSink::HANGOUT:
+        return media_router::mojom::MediaSink::IconType::HANGOUT;
+      case media_router::MediaSink::GENERIC:
+        return media_router::mojom::MediaSink::IconType::GENERIC;
+    }
+    NOTREACHED() << "Unknown sink icon type " << type;
+    return media_router::mojom::MediaSink::IconType::GENERIC;
+  }
+
+  static bool FromMojom(media_router::mojom::MediaSink::IconType input,
+                        media_router::MediaSink::IconType* output) {
+    switch (input) {
+      case media_router::mojom::MediaSink::IconType::CAST:
+        *output = media_router::MediaSink::CAST;
+        return true;
+      case media_router::mojom::MediaSink::IconType::CAST_AUDIO:
+        *output = media_router::MediaSink::CAST_AUDIO;
+        return true;
+      case media_router::mojom::MediaSink::IconType::CAST_AUDIO_GROUP:
+        *output = media_router::MediaSink::CAST_AUDIO_GROUP;
+        return true;
+      case media_router::mojom::MediaSink::IconType::HANGOUT:
+        *output = media_router::MediaSink::HANGOUT;
+        return true;
+      case media_router::mojom::MediaSink::IconType::GENERIC:
+        *output = media_router::MediaSink::GENERIC;
+        return true;
+    }
+    NOTREACHED() << "Unknown sink icon type " << input;
+    *output = media_router::MediaSink::GENERIC;
+    return false;
+  }
+};
+
+template <>
+struct StructTraits<media_router::mojom::MediaSinkDataView,
+                    media_router::MediaSink> {
+  static const std::string& sink_id(const media_router::MediaSink& sink) {
+    return sink.id();
+  }
+
+  static const std::string& name(const media_router::MediaSink& sink) {
+    return sink.name();
+  }
+
+  static base::Optional<std::string> description(
+      const media_router::MediaSink& sink) {
+    return sink.description();
+  }
+
+  static base::Optional<std::string> domain(
+      const media_router::MediaSink& sink) {
+    return sink.domain();
+  }
+
+  static media_router::MediaSink::IconType icon_type(
+      const media_router::MediaSink& sink) {
+    return sink.icon_type();
+  }
+
+  static bool Read(media_router::mojom::MediaSinkDataView data,
+                   media_router::MediaSink* out);
+};
+
+template <>
+struct StructTraits<media_router::mojom::TypedMediaSinkDataView,
+                    media_router::TypedMediaSink> {
+  static const media_router::MediaSink& sink(
+      const media_router::TypedMediaSink& sink) {
+    return sink.sink();
+  }
+
+  static base::Optional<std::string> model_name(
+      const media_router::TypedMediaSink& sink) {
+    return sink.model_name();
+  }
+
+  static const std::string& ip_address(
+      const media_router::TypedMediaSink& sink) {
+    return sink.ip_address();
+  }
+
+  static const media_router::TypedMediaSink& extra_data(
+      const media_router::TypedMediaSink& sink) {
+    return sink;
+  }
+
+  static bool Read(media_router::mojom::TypedMediaSinkDataView data,
+                   media_router::TypedMediaSink* out);
+};
+
+template <>
+struct UnionTraits<media_router::mojom::MediaSinkExtraDataDataView,
+                   media_router::TypedMediaSink> {
+  static media_router::mojom::MediaSinkExtraDataDataView::Tag GetTag(
+      const media_router::TypedMediaSink& sink) {
+    if (sink.is_dial_sink()) {
+      return media_router::mojom::MediaSinkExtraDataDataView::Tag::
+          DIAL_MEDIA_SINK;
+    } else if (sink.is_cast_sink()) {
+      return media_router::mojom::MediaSinkExtraDataDataView::Tag::
+          CAST_MEDIA_SINK;
+    }
+    NOTREACHED();

[imcheng, 2017/02/11 01:00:22]

should this be a CHECK(false) since we shouldn't ever be passing in an unknown
TypedMediaSink? Not sure if there's a meaningful way to recover from it, either.

[zhaobin, 2017/02/14 02:08:49]

Done.

+    return media_router::mojom::MediaSinkExtraDataDataView::Tag::
+        CAST_MEDIA_SINK;
+  }
+
+  static const media_router::DialSinkExtraData& dial_media_sink(
+      const media_router::TypedMediaSink& sink) {
+    auto* extra_data = sink.dial_sink_extra_data();
+    DCHECK(extra_data);
+    return *extra_data;
+  }
+
+  static const media_router::CastSinkExtraData& cast_media_sink(
+      const media_router::TypedMediaSink& sink) {
+    auto* extra_data = sink.cast_sink_extra_data();
+    DCHECK(extra_data);
+    return *extra_data;
+  }
+};
+
+template <>
+struct StructTraits<media_router::mojom::DialMediaSinkDataView,
+                    media_router::DialSinkExtraData> {
+  static const GURL& app_url(
+      const media_router::DialSinkExtraData& extra_data) {
+    return extra_data.app_url;
+  }
+
+  static bool Read(media_router::mojom::DialMediaSinkDataView data,
+                   media_router::DialSinkExtraData* out);
+};
+
+template <>
+struct StructTraits<media_router::mojom::CastMediaSinkDataView,
+                    media_router::CastSinkExtraData> {
+  static int32_t capabilities(
+      const media_router::CastSinkExtraData& extra_data) {
+    return extra_data.capabilities;
+  }
+
+  static int32_t cast_channel_id(
+      const media_router::CastSinkExtraData& extra_data) {
+    return extra_data.cast_channel_id;
+  }
+
+  static bool Read(media_router::mojom::CastMediaSinkDataView data,
+                   media_router::CastSinkExtraData* out);
+};
+
+template <>
 struct StructTraits<media_router::mojom::RouteMessageDataView,
                     media_router::RouteMessage> {
   static media_router::mojom::RouteMessage::Type type(
       const media_router::RouteMessage& msg) {
     switch (msg.type) {
       case media_router::RouteMessage::TEXT:
         return media_router::mojom::RouteMessage::Type::TEXT;
       case media_router::RouteMessage::BINARY:
         return media_router::mojom::RouteMessage::Type::BINARY;
     }
@@ skipping 82 matching lines @@
   }
 
   static int32_t help_page_id(const media_router::IssueInfo& issue) {
     return issue.help_page_id;
   }
 };
 
 }  // namespace mojo
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_MOJO_MEDIA_ROUTER_STRUCT_TRAITS_H_