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   virtual ~EmptyBackground() {}
  18
  19  private:
  20   virtual void Paint(gfx::Canvas* canvas, views::View* view) const override {
  21   }
  22
  23   DISALLOW_COPY_AND_ASSIGN(EmptyBackground);
  24 };
  25
  26 }
  27
  28 namespace ash {
  29
  30 TrayEmpty::TrayEmpty(SystemTray* system_tray)
  31     : SystemTrayItem(system_tray) {
  32 }
  33
  34 TrayEmpty::~TrayEmpty() {}
  35
  36 views::View* TrayEmpty::CreateTrayView(user::LoginStatus status) {
  37   return NULL;
  38 }
  39
  40 views::View* TrayEmpty::CreateDefaultView(user::LoginStatus status) {
  41   if (status == user::LOGGED_IN_NONE)
  42     return NULL;
  43
  44   views::View* view = new views::View;
  45   view->set_background(new EmptyBackground());
  46   view->SetBorder(views::Border::CreateEmptyBorder(10, 0, 0, 0));
  47   view->SetLayoutManager(new views::BoxLayout(views::BoxLayout::kVertical,
  48         0, 0, 0));
  49   view->SetPaintToLayer(true);
  50   view->SetFillsBoundsOpaquely(false);
  51   return view;
  52 }
  53
  54 views::View* TrayEmpty::CreateDetailedView(user::LoginStatus status) {
  55   return NULL;
  56 }
  57
  58 void TrayEmpty::DestroyTrayView() {}
  59
  60 void TrayEmpty::DestroyDefaultView() {}
  61
  62 void TrayEmpty::DestroyDetailedView() {}
  63
  64 void TrayEmpty::UpdateAfterLoginStatusChange(user::LoginStatus status) {}
  65
  66 }  // namespace ash