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      1 // Copyright 2013 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/chromeos/login/kiosk_app_menu_handler.h"
      6 
      7 #include "base/bind.h"
      8 #include "base/command_line.h"
      9 #include "base/strings/string_number_conversions.h"
     10 #include "base/sys_info.h"
     11 #include "base/values.h"
     12 #include "chrome/browser/browser_process.h"
     13 #include "chrome/browser/chrome_notification_types.h"
     14 #include "chrome/browser/chromeos/app_mode/kiosk_app_launch_error.h"
     15 #include "chrome/browser/chromeos/login/existing_user_controller.h"
     16 #include "chrome/grit/generated_resources.h"
     17 #include "chromeos/chromeos_switches.h"
     18 #include "content/public/browser/notification_details.h"
     19 #include "content/public/browser/notification_service.h"
     20 #include "content/public/browser/web_ui.h"
     21 #include "ui/base/l10n/l10n_util.h"
     22 #include "ui/base/webui/web_ui_util.h"
     23 
     24 namespace chromeos {
     25 
     26 namespace {
     27 
     28 // JS functions that define new and old kiosk UI API.
     29 const char kKioskSetAppsNewAPI[] = "login.AccountPickerScreen.setApps";
     30 const char kKioskSetAppsOldAPI[] = "login.AppsMenuButton.setApps";
     31 const char kKioskShowErrorNewAPI[] = "login.AccountPickerScreen.showAppError";
     32 const char kKioskShowErrorOldAPI[] = "login.AppsMenuButton.showError";
     33 
     34 }  // namespace
     35 
     36 KioskAppMenuHandler::KioskAppMenuHandler(
     37     const scoped_refptr<NetworkStateInformer>& network_state_informer)
     38     : is_webui_initialized_(false),
     39       network_state_informer_(network_state_informer),
     40       weak_ptr_factory_(this) {
     41   KioskAppManager::Get()->AddObserver(this);
     42   network_state_informer_->AddObserver(this);
     43 }
     44 
     45 KioskAppMenuHandler::~KioskAppMenuHandler() {
     46   KioskAppManager::Get()->RemoveObserver(this);
     47   network_state_informer_->RemoveObserver(this);
     48 }
     49 
     50 void KioskAppMenuHandler::GetLocalizedStrings(
     51     base::DictionaryValue* localized_strings) {
     52   localized_strings->SetString(
     53       "showApps",
     54       l10n_util::GetStringUTF16(IDS_KIOSK_APPS_BUTTON));
     55   localized_strings->SetString(
     56       "confirmKioskAppDiagnosticModeFormat",
     57       l10n_util::GetStringUTF16(IDS_LOGIN_CONFIRM_KIOSK_DIAGNOSTIC_FORMAT));
     58   localized_strings->SetString(
     59       "confirmKioskAppDiagnosticModeYes",
     60       l10n_util::GetStringUTF16(IDS_CONFIRM_MESSAGEBOX_YES_BUTTON_LABEL));
     61   localized_strings->SetString(
     62       "confirmKioskAppDiagnosticModeNo",
     63       l10n_util::GetStringUTF16(IDS_CONFIRM_MESSAGEBOX_NO_BUTTON_LABEL));
     64   localized_strings->SetBoolean(
     65       "kioskAppHasLaunchError",
     66       KioskAppLaunchError::Get() != KioskAppLaunchError::NONE);
     67 }
     68 
     69 void KioskAppMenuHandler::RegisterMessages() {
     70   web_ui()->RegisterMessageCallback("initializeKioskApps",
     71       base::Bind(&KioskAppMenuHandler::HandleInitializeKioskApps,
     72                  base::Unretained(this)));
     73   web_ui()->RegisterMessageCallback("kioskAppsLoaded",
     74       base::Bind(&KioskAppMenuHandler::HandleKioskAppsLoaded,
     75                  base::Unretained(this)));
     76   web_ui()->RegisterMessageCallback("checkKioskAppLaunchError",
     77       base::Bind(&KioskAppMenuHandler::HandleCheckKioskAppLaunchError,
     78                  base::Unretained(this)));
     79 }
     80 
     81 // static
     82 bool KioskAppMenuHandler::EnableNewKioskUI() {
     83   // Turn off new kiosk UI for M34/35.
     84   // TODO(xiyuan, nkostylev): Revist for http://crbug.com/362062.
     85   return false;
     86 }
     87 
     88 void KioskAppMenuHandler::SendKioskApps() {
     89   if (!is_webui_initialized_)
     90     return;
     91 
     92   KioskAppManager::Apps apps;
     93   KioskAppManager::Get()->GetApps(&apps);
     94 
     95   base::ListValue apps_list;
     96   for (size_t i = 0; i < apps.size(); ++i) {
     97     const KioskAppManager::App& app_data = apps[i];
     98 
     99     scoped_ptr<base::DictionaryValue> app_info(new base::DictionaryValue);
    100     app_info->SetBoolean("isApp", true);
    101     app_info->SetString("id", app_data.app_id);
    102     app_info->SetString("label", app_data.name);
    103 
    104     // TODO(xiyuan): Replace data url with a URLDataSource.
    105     std::string icon_url("chrome://theme/IDR_APP_DEFAULT_ICON");
    106     if (!app_data.icon.isNull())
    107       icon_url = webui::GetBitmapDataUrl(*app_data.icon.bitmap());
    108     app_info->SetString("iconUrl", icon_url);
    109 
    110     apps_list.Append(app_info.release());
    111   }
    112 
    113   web_ui()->CallJavascriptFunction(EnableNewKioskUI() ?
    114       kKioskSetAppsNewAPI : kKioskSetAppsOldAPI,
    115       apps_list);
    116 }
    117 
    118 void KioskAppMenuHandler::HandleInitializeKioskApps(
    119     const base::ListValue* args) {
    120   is_webui_initialized_ = true;
    121   SendKioskApps();
    122   UpdateState(ErrorScreenActor::ERROR_REASON_UPDATE);
    123 }
    124 
    125 void KioskAppMenuHandler::HandleKioskAppsLoaded(
    126     const base::ListValue* args) {
    127   content::NotificationService::current()->Notify(
    128       chrome::NOTIFICATION_KIOSK_APPS_LOADED,
    129       content::NotificationService::AllSources(),
    130       content::NotificationService::NoDetails());
    131 }
    132 
    133 void KioskAppMenuHandler::HandleCheckKioskAppLaunchError(
    134     const base::ListValue* args) {
    135   KioskAppLaunchError::Error error = KioskAppLaunchError::Get();
    136   if (error == KioskAppLaunchError::NONE)
    137     return;
    138   KioskAppLaunchError::Clear();
    139 
    140   const std::string error_message = KioskAppLaunchError::GetErrorMessage(error);
    141   bool new_kiosk_ui = EnableNewKioskUI();
    142   web_ui()->CallJavascriptFunction(new_kiosk_ui ?
    143       kKioskShowErrorNewAPI : kKioskShowErrorOldAPI,
    144       base::StringValue(error_message));
    145 }
    146 
    147 void KioskAppMenuHandler::OnKioskAppsSettingsChanged() {
    148   SendKioskApps();
    149 }
    150 
    151 void KioskAppMenuHandler::OnKioskAppDataChanged(const std::string& app_id) {
    152   SendKioskApps();
    153 }
    154 
    155 void KioskAppMenuHandler::UpdateState(ErrorScreenActor::ErrorReason reason) {
    156   if (network_state_informer_->state() == NetworkStateInformer::ONLINE)
    157     KioskAppManager::Get()->RetryFailedAppDataFetch();
    158 }
    159 
    160 }  // namespace chromeos
    161