src/chrome/browser/ui/webui/sync_internals_message_handler.cc

   1 // Copyright 2014 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 #include "chrome/browser/ui/webui/sync_internals_message_handler.h"
   6
   7 #include <vector>
   8
   9 #include "base/logging.h"
  10 #include "chrome/browser/profiles/profile.h"
  11 #include "chrome/browser/sync/about_sync_util.h"
  12 #include "chrome/browser/sync/profile_sync_service.h"
  13 #include "chrome/browser/sync/profile_sync_service_factory.h"
  14 #include "content/public/browser/browser_thread.h"
  15 #include "content/public/browser/web_ui.h"
  16 #include "sync/internal_api/public/util/weak_handle.h"
  17 #include "sync/js/js_arg_list.h"
  18 #include "sync/js/js_event_details.h"
  19
  20 using syncer::JsArgList;
  21 using syncer::JsEventDetails;
  22 using syncer::JsReplyHandler;
  23 using syncer::ModelTypeSet;
  24 using syncer::WeakHandle;
  25
  26 SyncInternalsMessageHandler::SyncInternalsMessageHandler()
  27     : weak_ptr_factory_(this) {}
  28
  29 SyncInternalsMessageHandler::~SyncInternalsMessageHandler() {
  30   if (js_controller_)
  31     js_controller_->RemoveJsEventHandler(this);
  32
  33   ProfileSyncService* service = GetProfileSyncService();
  34   if (service && service->HasObserver(this)) {
  35     service->RemoveObserver(this);
  36   }
  37 }
  38
  39 void SyncInternalsMessageHandler::RegisterMessages() {
  40   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
  41
  42   // Register for ProfileSyncService events.
  43   ProfileSyncService* service = GetProfileSyncService();
  44   if (service) {
  45     service->AddObserver(this);
  46     js_controller_ = service->GetJsController();
  47     js_controller_->AddJsEventHandler(this);
  48   }
  49
  50   web_ui()->RegisterMessageCallback(
  51       "requestUpdatedAboutInfo",
  52       base::Bind(&SyncInternalsMessageHandler::HandleRequestUpdatedAboutInfo,
  53                  base::Unretained(this)));
  54
  55   web_ui()->RegisterMessageCallback(
  56       "requestListOfTypes",
  57       base::Bind(&SyncInternalsMessageHandler::HandleRequestListOfTypes,
  58                  base::Unretained(this)));
  59
  60   RegisterJsControllerCallback("getNotificationState");
  61   RegisterJsControllerCallback("getNotificationInfo");
  62   RegisterJsControllerCallback("getAllNodes");
  63   RegisterJsControllerCallback("getClientServerTraffic");
  64 }
  65
  66 void SyncInternalsMessageHandler::HandleRequestUpdatedAboutInfo(
  67     const base::ListValue* args) {
  68   DCHECK(args->empty());
  69   SendAboutInfo();
  70 }
  71
  72 void SyncInternalsMessageHandler::HandleRequestListOfTypes(
  73     const base::ListValue* args) {
  74   DCHECK(args->empty());
  75   base::DictionaryValue event_details;
  76   scoped_ptr<base::ListValue> type_list(new base::ListValue());
  77   ModelTypeSet protocol_types = syncer::ProtocolTypes();
  78   for (ModelTypeSet::Iterator it = protocol_types.First();
  79        it.Good(); it.Inc()) {
  80     type_list->Append(new base::StringValue(ModelTypeToString(it.Get())));
  81   }
  82   event_details.Set("types", type_list.release());
  83   web_ui()->CallJavascriptFunction(
  84       "chrome.sync.dispatchEvent",
  85       base::StringValue("onReceivedListOfTypes"),
  86       event_details);
  87 }
  88
  89 void SyncInternalsMessageHandler::HandleJsReply(
  90     const std::string& name, const JsArgList& args) {
  91   DVLOG(1) << "Handling reply for " << name << " message"
  92            << " with args " << args.ToString();
  93   const std::string& reply_handler = "chrome.sync." + name + ".handleReply";
  94   std::vector<const base::Value*> arg_list(args.Get().begin(),
  95                                            args.Get().end());
  96   web_ui()->CallJavascriptFunction(reply_handler, arg_list);
  97 }
  98
  99 void SyncInternalsMessageHandler::OnStateChanged() {
 100   SendAboutInfo();
 101 }
 102
 103 void SyncInternalsMessageHandler::HandleJsEvent(
 104     const std::string& name,
 105     const JsEventDetails& details) {
 106   DVLOG(1) << "Handling event: " << name
 107            << " with details " << details.ToString();
 108   web_ui()->CallJavascriptFunction("chrome.sync.dispatchEvent",
 109                                    base::StringValue(name),
 110                                    details.Get());
 111 }
 112
 113 void SyncInternalsMessageHandler::RegisterJsControllerCallback(
 114     const std::string& name) {
 115   web_ui()->RegisterMessageCallback(
 116       name,
 117       base::Bind(&SyncInternalsMessageHandler::ForwardToJsController,
 118                  base::Unretained(this),
 119                  name));
 120 }
 121
 122 void SyncInternalsMessageHandler::SendAboutInfo() {
 123   scoped_ptr<base::DictionaryValue> value =
 124       sync_ui_util::ConstructAboutInformation(GetProfileSyncService());
 125   web_ui()->CallJavascriptFunction(
 126       "chrome.sync.dispatchEvent",
 127       base::StringValue("onAboutInfoUpdated"),
 128       *value);
 129 }
 130
 131 void SyncInternalsMessageHandler::ForwardToJsController(
 132     const std::string& name,
 133     const base::ListValue* args) {
 134   if (js_controller_) {
 135     scoped_ptr<base::ListValue> args_copy(args->DeepCopy());
 136     JsArgList js_arg_list(args_copy.get());
 137     js_controller_->ProcessJsMessage(
 138         name, js_arg_list,
 139         MakeWeakHandle(weak_ptr_factory_.GetWeakPtr()));
 140   } else {
 141     DLOG(WARNING) << "No sync service; dropping message " << name;
 142   }
 143 }
 144
 145 // Gets the ProfileSyncService of the underlying original profile.
 146 // May return NULL (e.g., if sync is disabled on the command line).
 147 ProfileSyncService* SyncInternalsMessageHandler::GetProfileSyncService() {
 148   Profile* profile = Profile::FromWebUI(web_ui());
 149   ProfileSyncServiceFactory* factory = ProfileSyncServiceFactory::GetInstance();
 150   return factory->GetForProfile(profile->GetOriginalProfile());
 151 }
 152