Non-Local Join for Media Router and Presentation API

chrome/browser/ui/webui/media_router/media_router_webui_message_handler.cc

 // Copyright 2015 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/ui/webui/media_router/media_router_webui_message_handler.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/media/router/issue.h"
 #include "chrome/browser/ui/webui/media_router/media_router_ui.h"
 #include "chrome/grit/generated_resources.h"
 #include "extensions/common/constants.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace media_router {
 
 namespace {
 
 const char kHelpPageUrlPrefix[] =
     "https://support.google.com/chromecast/answer/%d";
 
 // Message names.
 const char kRequestInitialData[] = "requestInitialData";
 const char kCreateRoute[] = "requestRoute";
 const char kActOnIssue[] = "actOnIssue";
 const char kCloseRoute[] = "closeRoute";
+const char kJoinRoute[] = "joinRoute";
+const char kCanJoinRoute[] = "canJoin";
 const char kCloseDialog[] = "closeDialog";
 const char kReportSinkCount[] = "reportSinkCount";
 
 // JS function names.
 const char kSetInitialData[] = "media_router.ui.setInitialData";
 const char kNotifyRouteCreationTimeout[] =
     "media_router.ui.onNotifyRouteCreationTimeout";
 const char kOnCreateRouteResponseReceived[] =
     "media_router.ui.onCreateRouteResponseReceived";
 const char kSetIssue[] = "media_router.ui.setIssue";
@@ skipping 19 matching lines @@
       cast_modes_val->AppendInteger(cast_mode);
     sink_val->Set("castModes", cast_modes_val.Pass());
 
     value->Append(sink_val.release());
   }
 
   return value.Pass();
 }
 
 scoped_ptr<base::DictionaryValue> RouteToValue(
-    const MediaRoute& route, const std::string& extension_id) {
+    const MediaRoute& route,
+    const std::string& extension_id) {
   scoped_ptr<base::DictionaryValue> dictionary(new base::DictionaryValue);
 
   dictionary->SetString("id", route.media_route_id());
   dictionary->SetString("sinkId", route.media_sink_id());
   dictionary->SetString("description", route.description());
   dictionary->SetBoolean("isLocal", route.is_local());
 
   const std::string& custom_path = route.custom_controller_path();
 
   if (!custom_path.empty()) {
-    std::string full_custom_controller_path = base::StringPrintf("%s://%s/%s",
-        extensions::kExtensionScheme, extension_id.c_str(),
-            custom_path.c_str());
+    std::string full_custom_controller_path =
+        base::StringPrintf("%s://%s/%s", extensions::kExtensionScheme,
+                           extension_id.c_str(), custom_path.c_str());
     DCHECK(GURL(full_custom_controller_path).is_valid());
-    dictionary->SetString("customControllerPath",
-                          full_custom_controller_path);
+    dictionary->SetString("customControllerPath", full_custom_controller_path);
   }
 
   return dictionary.Pass();
 }
 
-scoped_ptr<base::ListValue> RoutesToValue(
-    const std::vector<MediaRoute>& routes, const std::string& extension_id) {
+scoped_ptr<base::ListValue> RoutesToValue(const std::vector<MediaRoute>& routes,
+                                          const std::string& extension_id) {
   scoped_ptr<base::ListValue> value(new base::ListValue);
 
   for (const MediaRoute& route : routes) {
-    scoped_ptr<base::DictionaryValue> route_val(RouteToValue(route,
-        extension_id));
+    scoped_ptr<base::DictionaryValue> route_val(
+        RouteToValue(route, extension_id));
     value->Append(route_val.release());
   }
 
   return value.Pass();
 }
 
 scoped_ptr<base::ListValue> CastModesToValue(const CastModeSet& cast_modes,
                                              const std::string& source_host) {
   scoped_ptr<base::ListValue> value(new base::ListValue);
 
@@ skipping 48 matching lines @@
     DVLOG(1) << "Error: URL is invalid and cannot be opened.";
     return std::string();
   }
   return help_url;
 }
 
 }  // namespace
 
 MediaRouterWebUIMessageHandler::MediaRouterWebUIMessageHandler(
     MediaRouterUI* media_router_ui)
-    : dialog_closing_(false),
-      media_router_ui_(media_router_ui) {
+    : dialog_closing_(false), media_router_ui_(media_router_ui) {
   DCHECK(media_router_ui_);
 }
 
-MediaRouterWebUIMessageHandler::~MediaRouterWebUIMessageHandler() {
-}
+MediaRouterWebUIMessageHandler::~MediaRouterWebUIMessageHandler() {}
 
 void MediaRouterWebUIMessageHandler::UpdateSinks(
     const std::vector<MediaSinkWithCastModes>& sinks) {
   DVLOG(2) << "UpdateSinks";
   scoped_ptr<base::ListValue> sinks_val(SinksToValue(sinks));
   web_ui()->CallJavascriptFunction(kSetSinkList, *sinks_val);
 }
 
 void MediaRouterWebUIMessageHandler::UpdateRoutes(
     const std::vector<MediaRoute>& routes) {
   DVLOG(2) << "UpdateRoutes";
-  scoped_ptr<base::ListValue> routes_val(RoutesToValue(routes,
-      media_router_ui_->GetRouteProviderExtensionId()));
+  scoped_ptr<base::ListValue> routes_val(
+      RoutesToValue(routes, media_router_ui_->GetRouteProviderExtensionId()));
   web_ui()->CallJavascriptFunction(kSetRouteList, *routes_val);
 }
 
 void MediaRouterWebUIMessageHandler::UpdateCastModes(
     const CastModeSet& cast_modes,
     const std::string& source_host) {
   DVLOG(2) << "UpdateCastModes";
   scoped_ptr<base::ListValue> cast_modes_val(
       CastModesToValue(cast_modes, source_host));
   web_ui()->CallJavascriptFunction(kSetCastModeList, *cast_modes_val);
 }
 
 void MediaRouterWebUIMessageHandler::OnCreateRouteResponseReceived(
     const MediaSink::Id& sink_id,
     const MediaRoute* route) {
   DVLOG(2) << "OnCreateRouteResponseReceived";
   if (route) {
-    scoped_ptr<base::DictionaryValue> route_value(RouteToValue(*route,
-        media_router_ui_->GetRouteProviderExtensionId()));
+    scoped_ptr<base::DictionaryValue> route_value(
+        RouteToValue(*route, media_router_ui_->GetRouteProviderExtensionId()));
     web_ui()->CallJavascriptFunction(kOnCreateRouteResponseReceived,
                                      base::StringValue(sink_id), *route_value);
     UMA_HISTOGRAM_BOOLEAN("MediaRouter.Ui.Action.StartLocalSessionSuccessful",
                           true);
   } else {
     web_ui()->CallJavascriptFunction(kOnCreateRouteResponseReceived,
                                      base::StringValue(sink_id),
                                      *base::Value::CreateNullValue());
     UMA_HISTOGRAM_BOOLEAN("MediaRouter.Ui.Action.StartLocalSessionSuccessful",
                           false);
@@ skipping 15 matching lines @@
   DVLOG(2) << "NotifyRouteCreationTimeout";
   web_ui()->CallJavascriptFunction(kNotifyRouteCreationTimeout);
 }
 
 void MediaRouterWebUIMessageHandler::RegisterMessages() {
   web_ui()->RegisterMessageCallback(
       kRequestInitialData,
       base::Bind(&MediaRouterWebUIMessageHandler::OnRequestInitialData,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
-      kCreateRoute,
-      base::Bind(&MediaRouterWebUIMessageHandler::OnCreateRoute,
-                 base::Unretained(this)));
+      kCreateRoute, base::Bind(&MediaRouterWebUIMessageHandler::OnCreateRoute,
+                               base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
-      kActOnIssue,
-      base::Bind(&MediaRouterWebUIMessageHandler::OnActOnIssue,
-                 base::Unretained(this)));
+      kActOnIssue, base::Bind(&MediaRouterWebUIMessageHandler::OnActOnIssue,
+                              base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
-      kCloseRoute,
-      base::Bind(&MediaRouterWebUIMessageHandler::OnCloseRoute,
-                 base::Unretained(this)));
+      kCloseRoute, base::Bind(&MediaRouterWebUIMessageHandler::OnCloseRoute,
+                              base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
-      kCloseDialog,
-      base::Bind(&MediaRouterWebUIMessageHandler::OnCloseDialog,
-                 base::Unretained(this)));
+      kJoinRoute, base::Bind(&MediaRouterWebUIMessageHandler::OnJoinRoute,
+                             base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      kCanJoinRoute, base::Bind(&MediaRouterWebUIMessageHandler::OnCanJoinRoute,
+                                base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      kCloseDialog, base::Bind(&MediaRouterWebUIMessageHandler::OnCloseDialog,
+                               base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       kReportSinkCount,
       base::Bind(&MediaRouterWebUIMessageHandler::OnReportSinkCount,
                  base::Unretained(this)));
 }
 
 void MediaRouterWebUIMessageHandler::OnRequestInitialData(
     const base::ListValue* args) {
   DVLOG(1) << "OnRequestInitialData";
   base::DictionaryValue initial_data;
 
   // "No Cast devices found?" Chromecast help center page.
   initial_data.SetString("deviceMissingUrl",
-      base::StringPrintf(kHelpPageUrlPrefix, 3249268));
+                         base::StringPrintf(kHelpPageUrlPrefix, 3249268));
 
   scoped_ptr<base::ListValue> sinks(SinksToValue(media_router_ui_->sinks()));
   initial_data.Set("sinks", sinks.release());
 
-  scoped_ptr<base::ListValue> routes(RoutesToValue(media_router_ui_->routes(),
-      media_router_ui_->GetRouteProviderExtensionId()));
+  scoped_ptr<base::ListValue> routes(
+      RoutesToValue(media_router_ui_->routes(),
+                    media_router_ui_->GetRouteProviderExtensionId()));
   initial_data.Set("routes", routes.release());
 
   const std::set<MediaCastMode> cast_modes = media_router_ui_->cast_modes();
   scoped_ptr<base::ListValue> cast_modes_list(
       CastModesToValue(cast_modes, media_router_ui_->GetFrameURLHost()));
   initial_data.Set("castModes", cast_modes_list.release());
   if (!cast_modes.empty()) {
     initial_data.SetInteger("initialCastModeType",
                             GetPreferredCastMode(cast_modes));
   }
@@ skipping 23 matching lines @@
 
   if (!IsValidCastModeNum(cast_mode_num)) {
     DVLOG(1) << "Invalid cast mode: " << cast_mode_num << ". Aborting.";
     return;
   }
 
   MediaRouterUI* media_router_ui =
       static_cast<MediaRouterUI*>(web_ui()->GetController());
   if (media_router_ui->HasPendingRouteRequest()) {
     DVLOG(1) << "UI already has pending route request. Ignoring.";
-    Issue issue(
-        l10n_util::GetStringUTF8(IDS_MEDIA_ROUTER_ISSUE_PENDING_ROUTE),
-        std::string(), IssueAction(IssueAction::TYPE_DISMISS),
-        std::vector<IssueAction>(), std::string(), Issue::NOTIFICATION,
-        false, std::string());
+    Issue issue(l10n_util::GetStringUTF8(IDS_MEDIA_ROUTER_ISSUE_PENDING_ROUTE),
+                std::string(), IssueAction(IssueAction::TYPE_DISMISS),
+                std::vector<IssueAction>(), std::string(), Issue::NOTIFICATION,
+                false, std::string());
     media_router_ui_->AddIssue(issue);
     return;
   }
 
   DVLOG(2) << __FUNCTION__ << ": sink id: " << sink_id
            << ", cast mode: " << cast_mode_num;
 
   // TODO(haibinlu): Pass additional parameters into the CreateRoute request,
   // e.g. low-fps-mirror, user-override. (crbug.com/490364)
   if (!media_router_ui->CreateRoute(
           sink_id, static_cast<MediaCastMode>(cast_mode_num))) {
     // TODO(imcheng): Need to add an issue if failed to initiate a CreateRoute
     // request.
     DVLOG(1) << "Error initiating route request.";
   }
 }
 
-void MediaRouterWebUIMessageHandler::OnActOnIssue(
-    const base::ListValue* args) {
+void MediaRouterWebUIMessageHandler::OnActOnIssue(const base::ListValue* args) {
   DVLOG(1) << "OnActOnIssue";
   const base::DictionaryValue* args_dict = nullptr;
   Issue::Id issue_id;
   int action_type_num = -1;
   if (!args->GetDictionary(0, &args_dict) ||
       !args_dict->GetString("issueId", &issue_id) ||
       !args_dict->GetInteger("actionType", &action_type_num)) {
     DVLOG(1) << "Unable to extract args.";
     return;
   }
   if (!IsValidIssueActionTypeNum(action_type_num)) {
     DVLOG(1) << "Invalid action type: " << action_type_num;
     return;
   }
   IssueAction::Type action_type =
       static_cast<IssueAction::Type>(action_type_num);
   if (ActOnIssueType(action_type, args_dict))
     DVLOG(1) << "ActOnIssueType failed for Issue ID " << issue_id;
   media_router_ui_->ClearIssue(issue_id);
 }
 
-void MediaRouterWebUIMessageHandler::OnCloseRoute(
+void MediaRouterWebUIMessageHandler::OnCanJoinRoute(
     const base::ListValue* args) {
+  DVLOG(0) << "OnCanJoinRoute";
+  const base::DictionaryValue* args_dict = nullptr;
+  std::string route_id;
+  if (!args->GetDictionary(0, &args_dict) ||
+      !args_dict->GetString("routeId", &route_id)) {
+    DVLOG(1) << "Unable to extract args.";
+    return;
+  }
+  media_router_ui_->CanJoinRoute(route_id);
+}
+
+void MediaRouterWebUIMessageHandler::OnJoinRoute(const base::ListValue* args) {
+  DVLOG(0) << "OnJoinRoute";
+  const base::DictionaryValue* args_dict = nullptr;
+  std::string route_id;
+  std::string sink_id;
+  if (!args->GetDictionary(0, &args_dict) ||
+      !args_dict->GetString("sinkId", &sink_id) ||
+      !args_dict->GetString("routeId", &route_id)) {
+    DVLOG(1) << "Unable to extract args.";
+    return;
+  }
+  media_router_ui_->JoinRoute(sink_id, route_id);
+}
+
+void MediaRouterWebUIMessageHandler::OnCloseRoute(const base::ListValue* args) {
   DVLOG(1) << "OnCloseRoute";
   const base::DictionaryValue* args_dict = nullptr;
   std::string route_id;
   if (!args->GetDictionary(0, &args_dict) ||
       !args_dict->GetString("routeId", &route_id)) {
     DVLOG(1) << "Unable to extract args.";
     return;
   }
   media_router_ui_->CloseRoute(route_id);
 }
@@ skipping 30 matching lines @@
     open_args->AppendString(learn_more_url);
     web_ui()->CallJavascriptFunction(kWindowOpen, *open_args);
     return true;
   } else {
     // Do nothing; no other issue action types require any other action.
     return true;
   }
 }
 
 }  // namespace media_router