ash/system/tray/tray_empty.cc

   1 // Copyright (c) 2012 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/tray/tray_empty.h"
   6
   7 #include "ui/views/layout/box_layout.h"
   8 #include "ui/views/background.h"
   9 #include "ui/views/border.h"
  10 #include "ui/views/view.h"
  11
  12 namespace {
  13
  14 class EmptyBackground : public views::Background {
  15  public:
  16   EmptyBackground() {}
  17   ~EmptyBackground() override {}
  18
  19  private:
  20   void Paint(gfx::Canvas* canvas, views::View* view) const override {}
  21
  22   DISALLOW_COPY_AND_ASSIGN(EmptyBackground);
  23 };
  24
  25 }
  26
  27 namespace ash {
  28
  29 TrayEmpty::TrayEmpty(SystemTray* system_tray)
  30     : SystemTrayItem(system_tray) {
  31 }
  32
  33 TrayEmpty::~TrayEmpty() {}
  34
  35 views::View* TrayEmpty::CreateTrayView(user::LoginStatus status) {
  36   return NULL;
  37 }
  38
  39 views::View* TrayEmpty::CreateDefaultView(user::LoginStatus status) {
  40   if (status == user::LOGGED_IN_NONE)
  41     return NULL;
  42
  43   views::View* view = new views::View;
  44   view->set_background(new EmptyBackground());
  45   view->SetBorder(views::Border::CreateEmptyBorder(10, 0, 0, 0));
  46   view->SetLayoutManager(new views::BoxLayout(views::BoxLayout::kVertical,
  47         0, 0, 0));
  48   view->SetPaintToLayer(true);
  49   view->SetFillsBoundsOpaquely(false);
  50   return view;
  51 }
  52
  53 views::View* TrayEmpty::CreateDetailedView(user::LoginStatus status) {
  54   return NULL;
  55 }
  56
  57 void TrayEmpty::DestroyTrayView() {}
  58
  59 void TrayEmpty::DestroyDefaultView() {}
  60
  61 void TrayEmpty::DestroyDetailedView() {}
  62
  63 void TrayEmpty::UpdateAfterLoginStatusChange(user::LoginStatus status) {}
  64
  65 }  // namespace ash