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/events/protocol_event.h"
  17 #include "sync/internal_api/public/util/weak_handle.h"
  18 #include "sync/js/js_arg_list.h"
  19 #include "sync/js/js_event_details.h"
  20
  21 using syncer::JsArgList;
  22 using syncer::JsEventDetails;
  23 using syncer::JsReplyHandler;
  24 using syncer::ModelTypeSet;
  25 using syncer::WeakHandle;
  26
  27 SyncInternalsMessageHandler::SyncInternalsMessageHandler()
  28     : weak_ptr_factory_(this) {}
  29
  30 SyncInternalsMessageHandler::~SyncInternalsMessageHandler() {
  31   if (js_controller_)
  32     js_controller_->RemoveJsEventHandler(this);
  33
  34   ProfileSyncService* service = GetProfileSyncService();
  35   if (service && service->HasObserver(this)) {
  36     service->RemoveObserver(this);
  37     service->RemoveProtocolEventObserver(this);
  38   }
  39 }
  40
  41 void SyncInternalsMessageHandler::RegisterMessages() {
  42   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
  43
  44   // Register for ProfileSyncService events.
  45   ProfileSyncService* service = GetProfileSyncService();
  46   if (service) {
  47     service->AddObserver(this);
  48     service->AddProtocolEventObserver(this);
  49     js_controller_ = service->GetJsController();
  50     js_controller_->AddJsEventHandler(this);
  51   }
  52
  53   web_ui()->RegisterMessageCallback(
  54       "requestUpdatedAboutInfo",
  55       base::Bind(&SyncInternalsMessageHandler::HandleRequestUpdatedAboutInfo,
  56                  base::Unretained(this)));
  57
  58   web_ui()->RegisterMessageCallback(
  59       "requestListOfTypes",
  60       base::Bind(&SyncInternalsMessageHandler::HandleRequestListOfTypes,
  61                  base::Unretained(this)));
  62
  63   RegisterJsControllerCallback("getAllNodes");
  64   RegisterJsControllerCallback("getClientServerTraffic");
  65 }
  66
  67 void SyncInternalsMessageHandler::HandleRequestUpdatedAboutInfo(
  68     const base::ListValue* args) {
  69   DCHECK(args->empty());
  70   SendAboutInfo();
  71 }
  72
  73 void SyncInternalsMessageHandler::HandleRequestListOfTypes(
  74     const base::ListValue* args) {
  75   DCHECK(args->empty());
  76   base::DictionaryValue event_details;
  77   scoped_ptr<base::ListValue> type_list(new base::ListValue());
  78   ModelTypeSet protocol_types = syncer::ProtocolTypes();
  79   for (ModelTypeSet::Iterator it = protocol_types.First();
  80        it.Good(); it.Inc()) {
  81     type_list->Append(new base::StringValue(ModelTypeToString(it.Get())));
  82   }
  83   event_details.Set("types", type_list.release());
  84   web_ui()->CallJavascriptFunction(
  85       "chrome.sync.dispatchEvent",
  86       base::StringValue("onReceivedListOfTypes"),
  87       event_details);
  88 }
  89
  90 void SyncInternalsMessageHandler::HandleJsReply(
  91     const std::string& name, const JsArgList& args) {
  92   DVLOG(1) << "Handling reply for " << name << " message"
  93            << " with args " << args.ToString();
  94   const std::string& reply_handler = "chrome.sync." + name + ".handleReply";
  95   std::vector<const base::Value*> arg_list(args.Get().begin(),
  96                                            args.Get().end());
  97   web_ui()->CallJavascriptFunction(reply_handler, arg_list);
  98 }
  99
 100 void SyncInternalsMessageHandler::OnStateChanged() {
 101   SendAboutInfo();
 102 }
 103
 104 void SyncInternalsMessageHandler::OnProtocolEvent(
 105     const syncer::ProtocolEvent& event) {
 106   scoped_ptr<base::DictionaryValue> value(
 107       syncer::ProtocolEvent::ToValue(event));
 108   web_ui()->CallJavascriptFunction(
 109       "chrome.sync.dispatchEvent",
 110       base::StringValue("onProtocolEvent"),
 111       *value);
 112 }
 113
 114 void SyncInternalsMessageHandler::HandleJsEvent(
 115     const std::string& name,
 116     const JsEventDetails& details) {
 117   DVLOG(1) << "Handling event: " << name
 118            << " with details " << details.ToString();
 119   web_ui()->CallJavascriptFunction("chrome.sync.dispatchEvent",
 120                                    base::StringValue(name),
 121                                    details.Get());
 122 }
 123
 124 void SyncInternalsMessageHandler::RegisterJsControllerCallback(
 125     const std::string& name) {
 126   web_ui()->RegisterMessageCallback(
 127       name,
 128       base::Bind(&SyncInternalsMessageHandler::ForwardToJsController,
 129                  base::Unretained(this),
 130                  name));
 131 }
 132
 133 void SyncInternalsMessageHandler::SendAboutInfo() {
 134   scoped_ptr<base::DictionaryValue> value =
 135       sync_ui_util::ConstructAboutInformation(GetProfileSyncService());
 136   web_ui()->CallJavascriptFunction(
 137       "chrome.sync.dispatchEvent",
 138       base::StringValue("onAboutInfoUpdated"),
 139       *value);
 140 }
 141
 142 void SyncInternalsMessageHandler::ForwardToJsController(
 143     const std::string& name,
 144     const base::ListValue* args) {
 145   if (js_controller_) {
 146     scoped_ptr<base::ListValue> args_copy(args->DeepCopy());
 147     JsArgList js_arg_list(args_copy.get());
 148     js_controller_->ProcessJsMessage(
 149         name, js_arg_list,
 150         MakeWeakHandle(weak_ptr_factory_.GetWeakPtr()));
 151   } else {
 152     DLOG(WARNING) << "No sync service; dropping message " << name;
 153   }
 154 }
 155
 156 // Gets the ProfileSyncService of the underlying original profile.
 157 // May return NULL (e.g., if sync is disabled on the command line).
 158 ProfileSyncService* SyncInternalsMessageHandler::GetProfileSyncService() {
 159   Profile* profile = Profile::FromWebUI(web_ui());
 160   ProfileSyncServiceFactory* factory = ProfileSyncServiceFactory::GetInstance();
 161   return factory->GetForProfile(profile->GetOriginalProfile());
 162 }
 163