[Media Router] Add MediaSink subtypes

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

 // 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.
 
 #include "chrome/browser/media/router/mojo/media_router_struct_traits.h"
+#include "url/mojo/url_gurl_struct_traits.h"
 
 namespace mojo {
 
 // static
 bool StructTraits<media_router::mojom::IssueDataView, media_router::IssueInfo>::
     Read(media_router::mojom::IssueDataView data,
          media_router::IssueInfo* out) {
   if (!data.ReadTitle(&out->title))
     return false;
 
@@ skipping 17 matching lines @@
     return false;
 
   out->route_id = route_id.value_or(std::string());
 
   out->is_blocking = data.is_blocking();
   out->help_page_id = data.help_page_id();
 
   return true;
 }
 
+// static
+bool StructTraits<media_router::mojom::MediaSinkDataView,
+                  std::unique_ptr<media_router::MediaSink>>::
+    Read(media_router::mojom::MediaSinkDataView data,
+         std::unique_ptr<media_router::MediaSink>* out) {
+  media_router::MediaSink::Id id;
+  if (!data.ReadSinkId(&id))
+    return false;
+
+  std::string name;
+  if (!data.ReadName(&name))
+    return false;
+
+  media_router::MediaSink::IconType icon_type;
+  if (!data.ReadIconType(&icon_type))
+    return false;
+
+  std::unique_ptr<media_router::MediaSink> sink;
+  media_router::mojom::MediaSinkExtraDataDataView extra_data_data_view;
+  data.GetExtraDataDataView(&extra_data_data_view);
+
+  if (extra_data_data_view.is_null()) {

[imcheng, 2017/02/09 02:19:57]

We shouldn't be returning non-generic MediaSinks from the extension. Maybe add a
NOTREACHED() if extra data is not null?

+    sink = base::MakeUnique<media_router::MediaSink>(id, name, icon_type);
+  } else if (extra_data_data_view.is_dial_media_sink()) {
+    sink = base::MakeUnique<media_router::DialMediaSink>(id, name, icon_type);
+    if (!extra_data_data_view.ReadDialMediaSink(sink.get()))
+      return false;
+  } else if (extra_data_data_view.is_cast_media_sink()) {
+    sink = base::MakeUnique<media_router::CastMediaSink>(id, name, icon_type);
+    if (!extra_data_data_view.ReadCastMediaSink(sink.get()))
+      return false;
+  }
+
+  base::Optional<std::string> description;
+  if (!data.ReadDescription(&description))
+    return false;
+
+  if (description)
+    sink->set_description(*description);
+
+  base::Optional<std::string> domain;
+  if (!data.ReadDomain(&domain))
+    return false;
+
+  if (domain)
+    sink->set_domain(*domain);
+
+  base::Optional<std::string> model_name;
+  if (!data.ReadModelName(&model_name))
+    return false;
+
+  if (model_name)
+    sink->set_model_name(*model_name);
+
+  *out = std::move(sink);
+  return true;
+}
+
+// static
+bool StructTraits<media_router::mojom::DialMediaSinkDataView,
+                  media_router::MediaSink>::
+    Read(media_router::mojom::DialMediaSinkDataView data,
+         media_router::MediaSink* out) {
+  auto* dial_sink = media_router::DialMediaSink::Cast(out);
+
+  std::string ip_address;
+  if (!data.ReadIpAddress(&ip_address))
+    return false;
+  dial_sink->set_ip_address(ip_address);
+
+  GURL url;
+  if (!data.ReadAppUrl(&url))
+    return false;
+  dial_sink->set_app_url(url);
+
+  return true;
+}
+
+// static
+bool StructTraits<media_router::mojom::CastMediaSinkDataView,
+                  media_router::MediaSink>::
+    Read(media_router::mojom::CastMediaSinkDataView data,
+         media_router::MediaSink* out) {
+  auto* cast_sink = media_router::CastMediaSink::Cast(out);
+
+  cast_sink->set_capabilities(data.capabilities());
+
+  std::string ip_address;
+  if (!data.ReadIpAddress(&ip_address))
+    return false;
+  cast_sink->set_ip_address(ip_address);
+
+  cast_sink->set_cast_channel_id(data.cast_channel_id());
+
+  return true;
+}
+
 }  // namespace mojo