Add a new App launcher promo to the apps page / NTP.

chrome/browser/ui/webui/ntp/app_launcher_handler.cc

 // Copyright (c) 2012 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/ntp/app_launcher_handler.h"
 
 #include <vector>
 
+#include "apps/pref_names.h"
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/i18n/rtl.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
+#include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/crx_installer.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_sorting.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/management_policy.h"
 #include "chrome/browser/favicon/favicon_service_factory.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser_finder.h"
@@ skipping 130 matching lines @@
         sorting->CreateNextAppLaunchOrdinal(page_ordinal);
     sorting->SetAppLaunchOrdinal(extension->id(), app_launch_ordinal);
   }
   value->SetString("app_launch_ordinal", app_launch_ordinal.ToInternalValue());
 }
 
 void AppLauncherHandler::RegisterMessages() {
   registrar_.Add(this, chrome::NOTIFICATION_APP_INSTALLED_TO_NTP,
       content::Source<WebContents>(web_ui()->GetWebContents()));
 
+  // Some tests don't have a local state.
+  if (g_browser_process->local_state()) {
+    local_state_pref_change_registrar_.Init(g_browser_process->local_state());
+    local_state_pref_change_registrar_.Add(
+        apps::prefs::kShowAppLauncherPromo,
+        base::Bind(&AppLauncherHandler::OnLocalStatePreferenceChanged,
+                   base::Unretained(this)));
+  }
   web_ui()->RegisterMessageCallback("getApps",
       base::Bind(&AppLauncherHandler::HandleGetApps,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("launchApp",
       base::Bind(&AppLauncherHandler::HandleLaunchApp,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("setLaunchType",
       base::Bind(&AppLauncherHandler::HandleSetLaunchType,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("uninstallApp",
@@ skipping 10 matching lines @@
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("saveAppPageName",
       base::Bind(&AppLauncherHandler::HandleSaveAppPageName,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("generateAppForLink",
       base::Bind(&AppLauncherHandler::HandleGenerateAppForLink,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("recordAppLaunchByURL",
       base::Bind(&AppLauncherHandler::HandleRecordAppLaunchByUrl,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback("stopShowingAppLauncherPromo",
+      base::Bind(&AppLauncherHandler::StopShowingAppLauncherPromo,
+                 base::Unretained(this)));
 }
 
 void AppLauncherHandler::Observe(int type,
                                  const content::NotificationSource& source,
                                  const content::NotificationDetails& details) {
   if (type == chrome::NOTIFICATION_APP_INSTALLED_TO_NTP) {
     highlight_app_id_ = *content::Details<const std::string>(details).ptr();
     if (has_loaded_apps_)
       SetAppToBeHighlighted();
     return;
@@ skipping 177 matching lines @@
   }
 
   SetAppToBeHighlighted();
   FillAppDictionary(&dictionary);
   web_ui()->CallJavascriptFunction("ntp.getAppsCallback", dictionary);
 
   // First time we get here we set up the observer so that we can tell update
   // the apps as they change.
   if (!has_loaded_apps_) {
     base::Closure callback = base::Bind(
-        &AppLauncherHandler::OnPreferenceChanged,
+        &AppLauncherHandler::OnExtensionPreferenceChanged,
         base::Unretained(this));
-    pref_change_registrar_.Init(
+    extension_pref_change_registrar_.Init(
         extension_service_->extension_prefs()->pref_service());
-    pref_change_registrar_.Add(ExtensionPrefs::kExtensionsPref, callback);
-    pref_change_registrar_.Add(prefs::kNtpAppPageNames, callback);
+    extension_pref_change_registrar_.Add(ExtensionPrefs::kExtensionsPref,
+                                         callback);
+    extension_pref_change_registrar_.Add(prefs::kNtpAppPageNames, callback);
 
     registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LOADED,
         content::Source<Profile>(profile));
     registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
         content::Source<Profile>(profile));
     registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LAUNCHER_REORDERED,
         content::Source<ExtensionSorting>(
             extension_service_->extension_prefs()->extension_sorting()));
     registrar_.Add(this, chrome::NOTIFICATION_WEB_STORE_PROMO_LOADED,
         content::Source<Profile>(profile));
@@ skipping 244 matching lines @@
   double source;
   CHECK(args->GetDouble(1, &source));
 
   extension_misc::AppLaunchBucket bucket =
       static_cast<extension_misc::AppLaunchBucket>(static_cast<int>(source));
   CHECK(source < extension_misc::APP_LAUNCH_BUCKET_BOUNDARY);
 
   RecordAppLaunchByUrl(Profile::FromWebUI(web_ui()), url, bucket);
 }
 
+void AppLauncherHandler::StopShowingAppLauncherPromo(
+    const base::ListValue* args) {
+  g_browser_process->local_state()->SetBoolean(
+      apps::prefs::kShowAppLauncherPromo, false);
+}
+
 void AppLauncherHandler::OnFaviconForApp(
     scoped_ptr<AppInstallInfo> install_info,
     const history::FaviconImageResult& image_result) {
   scoped_ptr<WebApplicationInfo> web_app(new WebApplicationInfo());
   web_app->is_bookmark_app = install_info->is_bookmark_app;
   web_app->title = install_info->title;
   web_app->app_url = install_info->app_url;
   web_app->urls.push_back(install_info->app_url);
 
   if (!image_result.image.IsEmpty()) {
@@ skipping 14 matching lines @@
 
 void AppLauncherHandler::SetAppToBeHighlighted() {
   if (highlight_app_id_.empty())
     return;
 
   StringValue app_id(highlight_app_id_);
   web_ui()->CallJavascriptFunction("ntp.setAppToBeHighlighted", app_id);
   highlight_app_id_.clear();
 }
 
-void AppLauncherHandler::OnPreferenceChanged() {
+void AppLauncherHandler::OnExtensionPreferenceChanged() {
   DictionaryValue dictionary;
   FillAppDictionary(&dictionary);
   web_ui()->CallJavascriptFunction("ntp.appsPrefChangeCallback", dictionary);
 }
 
+void AppLauncherHandler::OnLocalStatePreferenceChanged() {
+  web_ui()->CallJavascriptFunction(
+      "ntp.appLauncherPromoPrefChangeCallback",
+      base::FundamentalValue(g_browser_process->local_state()->GetBoolean(
+          apps::prefs::kShowAppLauncherPromo)));
+}
+
 // static
 void AppLauncherHandler::RegisterUserPrefs(PrefRegistrySyncable* registry) {
   registry->RegisterListPref(prefs::kNtpAppPageNames,
                              PrefRegistrySyncable::SYNCABLE_PREF);
 }
 
 void AppLauncherHandler::CleanupAfterUninstall() {
   extension_id_prompting_.clear();
 }
 
@@ skipping 96 matching lines @@
 ExtensionUninstallDialog* AppLauncherHandler::GetExtensionUninstallDialog() {
   if (!extension_uninstall_dialog_.get()) {
     Browser* browser = chrome::FindBrowserWithWebContents(
         web_ui()->GetWebContents());
     extension_uninstall_dialog_.reset(
         ExtensionUninstallDialog::Create(extension_service_->profile(),
                                          browser, this));
   }
   return extension_uninstall_dialog_.get();
 }