ash/system/chromeos/session/logout_confirmation_dialog.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 "ash/system/chromeos/session/logout_confirmation_dialog.h"
   6
   7 #include "ash/shell.h"
   8 #include "ash/system/chromeos/session/logout_confirmation_controller.h"
   9 #include "ash/system/tray/tray_constants.h"
  10 #include "base/location.h"
  11 #include "base/time/tick_clock.h"
  12 #include "grit/ash_strings.h"
  13 #include "ui/base/l10n/l10n_util.h"
  14 #include "ui/base/l10n/time_format.h"
  15 #include "ui/base/ui_base_types.h"
  16 #include "ui/gfx/text_constants.h"
  17 #include "ui/views/border.h"
  18 #include "ui/views/controls/label.h"
  19 #include "ui/views/layout/fill_layout.h"
  20 #include "ui/views/widget/widget.h"
  21
  22 namespace ash {
  23 namespace {
  24
  25 const int kCountdownUpdateIntervalMs = 1000;  // 1 second.
  26
  27 const int kHalfSecondInMs = 500;  // Half a second.
  28
  29 }  // namespace
  30
  31 LogoutConfirmationDialog::LogoutConfirmationDialog(
  32     LogoutConfirmationController* controller,
  33     base::TimeTicks logout_time)
  34     : controller_(controller),
  35       logout_time_(logout_time) {
  36   SetLayoutManager(new views::FillLayout());
  37
  38   label_ = new views::Label;
  39   label_->SetBorder(views::Border::CreateEmptyBorder(
  40       0, kTrayPopupPaddingHorizontal, 0, kTrayPopupPaddingHorizontal));
  41   label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
  42   label_->SetMultiLine(true);
  43   AddChildView(label_);
  44
  45   UpdateLabel();
  46
  47   CreateDialogWidget(this, ash::Shell::GetPrimaryRootWindow(), NULL);
  48   GetWidget()->Show();
  49
  50   update_timer_.Start(
  51       FROM_HERE,
  52       base::TimeDelta::FromMilliseconds(kCountdownUpdateIntervalMs),
  53       this,
  54       &LogoutConfirmationDialog::UpdateLabel);
  55 }
  56
  57 LogoutConfirmationDialog::~LogoutConfirmationDialog() {
  58 }
  59
  60 void LogoutConfirmationDialog::Update(base::TimeTicks logout_time) {
  61   logout_time_ = logout_time;
  62   UpdateLabel();
  63 }
  64
  65 bool LogoutConfirmationDialog::Accept() {
  66   logout_time_ = controller_->clock()->NowTicks();
  67   UpdateLabel();
  68   controller_->OnLogoutConfirmed();
  69   return true;
  70 }
  71
  72 ui::ModalType LogoutConfirmationDialog::GetModalType() const {
  73   return ui::MODAL_TYPE_SYSTEM;
  74 }
  75
  76 base::string16 LogoutConfirmationDialog::GetWindowTitle() const {
  77   return l10n_util::GetStringUTF16(IDS_ASH_LOGOUT_CONFIRMATION_TITLE);
  78 }
  79
  80 base::string16 LogoutConfirmationDialog::GetDialogButtonLabel(
  81     ui::DialogButton button) const {
  82   if (button == ui::DIALOG_BUTTON_OK)
  83     return l10n_util::GetStringUTF16(IDS_ASH_LOGOUT_CONFIRMATION_BUTTON);
  84   return views::DialogDelegateView::GetDialogButtonLabel(button);
  85 }
  86
  87 void LogoutConfirmationDialog::OnClosed() {
  88   update_timer_.Stop();
  89   controller_->OnDialogClosed();
  90 }
  91
  92 void LogoutConfirmationDialog::DeleteDelegate() {
  93   delete this;
  94 }
  95
  96 void LogoutConfirmationDialog::UpdateLabel() {
  97   const base::TimeDelta time_remaining =
  98       logout_time_ - controller_->clock()->NowTicks();
  99   if (time_remaining >= base::TimeDelta::FromMilliseconds(kHalfSecondInMs)) {
 100     label_->SetText(l10n_util::GetStringFUTF16(
 101         IDS_ASH_LOGOUT_CONFIRMATION_WARNING,
 102         ui::TimeFormat::Detailed(ui::TimeFormat::FORMAT_DURATION,
 103                                  ui::TimeFormat::LENGTH_LONG,
 104                                  10,
 105                                  time_remaining)));
 106   } else {
 107     label_->SetText(l10n_util::GetStringUTF16(
 108         IDS_ASH_LOGOUT_CONFIRMATION_WARNING_NOW));
 109     update_timer_.Stop();
 110   }
 111 }
 112
 113 }  // namespace ash