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 namespace internal { 30 31 TrayEmpty::TrayEmpty(SystemTray* system_tray) 32 : SystemTrayItem(system_tray) { 33 } 34 35 TrayEmpty::~TrayEmpty() {} 36 37 views::View* TrayEmpty::CreateTrayView(user::LoginStatus status) { 38 return NULL; 39 } 40 41 views::View* TrayEmpty::CreateDefaultView(user::LoginStatus status) { 42 if (status == user::LOGGED_IN_NONE) 43 return NULL; 44 45 views::View* view = new views::View; 46 view->set_background(new EmptyBackground()); 47 view->set_border(views::Border::CreateEmptyBorder(10, 0, 0, 0)); 48 view->SetLayoutManager(new views::BoxLayout(views::BoxLayout::kVertical, 49 0, 0, 0)); 50 view->SetPaintToLayer(true); 51 view->SetFillsBoundsOpaquely(false); 52 return view; 53 } 54 55 views::View* TrayEmpty::CreateDetailedView(user::LoginStatus status) { 56 return NULL; 57 } 58 59 void TrayEmpty::DestroyTrayView() {} 60 61 void TrayEmpty::DestroyDefaultView() {} 62 63 void TrayEmpty::DestroyDetailedView() {} 64 65 void TrayEmpty::UpdateAfterLoginStatusChange(user::LoginStatus status) {} 66 67 } // namespace internal 68 } // namespace ash 69
