chrome/browser/ui/webui/options/chromeos/date_time_options_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/options/chromeos/date_time_options_handler.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/values.h"
  10 #include "chrome/browser/chromeos/set_time_dialog.h"
  11 #include "chrome/grit/generated_resources.h"
  12 #include "chromeos/dbus/dbus_thread_manager.h"
  13 #include "chromeos/dbus/system_clock_client.h"
  14 #include "content/public/browser/web_contents.h"
  15 #include "content/public/browser/web_ui.h"
  16 #include "ui/base/l10n/l10n_util.h"
  17
  18 namespace chromeos {
  19 namespace options {
  20
  21 DateTimeOptionsHandler::DateTimeOptionsHandler()
  22     : can_set_time_(false), page_initialized_(false) {
  23 }
  24
  25 DateTimeOptionsHandler::~DateTimeOptionsHandler() {
  26   DBusThreadManager::Get()->GetSystemClockClient()->RemoveObserver(this);
  27 }
  28
  29 void DateTimeOptionsHandler::GetLocalizedValues(
  30     base::DictionaryValue* localized_strings) {
  31   DCHECK(localized_strings);
  32
  33   localized_strings->SetString(
  34       "setTimeButton",
  35       l10n_util::GetStringUTF16(IDS_OPTIONS_SETTINGS_SET_TIME_BUTTON));
  36 }
  37
  38 void DateTimeOptionsHandler::InitializeHandler() {
  39   SystemClockClient* system_clock_client =
  40       DBusThreadManager::Get()->GetSystemClockClient();
  41   system_clock_client->AddObserver(this);
  42
  43   can_set_time_ = system_clock_client->CanSetTime();
  44   SystemClockCanSetTimeChanged(can_set_time_);
  45 }
  46
  47 void DateTimeOptionsHandler::InitializePage() {
  48   page_initialized_ = true;
  49   SystemClockCanSetTimeChanged(can_set_time_);
  50 }
  51
  52 void DateTimeOptionsHandler::RegisterMessages() {
  53   // Callback for set time button.
  54   web_ui()->RegisterMessageCallback(
  55       "showSetTime",
  56       base::Bind(&DateTimeOptionsHandler::HandleShowSetTime,
  57                  base::Unretained(this)));
  58 }
  59
  60 void DateTimeOptionsHandler::SystemClockCanSetTimeChanged(bool can_set_time) {
  61   if (page_initialized_) {
  62     web_ui()->CallJavascriptFunction("BrowserOptions.setCanSetTime",
  63                                      base::FundamentalValue(can_set_time));
  64   }
  65   can_set_time_ = can_set_time;
  66 }
  67
  68 void DateTimeOptionsHandler::HandleShowSetTime(const base::ListValue* args) {
  69   // Make sure the clock status hasn't changed since the button was clicked.
  70   if (can_set_time_) {
  71     SetTimeDialog::ShowDialog(
  72         web_ui()->GetWebContents()->GetTopLevelNativeWindow());
  73   }
  74 }
  75
  76 }  // namespace options
  77 }  // namespace chromeos