src/ash/system/chromeos/rotation/tray_rotation_lock.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/rotation/tray_rotation_lock.h"
   6
   7 #include "ash/shell.h"
   8 #include "ash/system/tray/system_tray.h"
   9 #include "ash/system/tray/tray_item_more.h"
  10 #include "ash/wm/maximize_mode/maximize_mode_controller.h"
  11 #include "grit/ash_resources.h"
  12 #include "grit/ash_strings.h"
  13 #include "ui/base/l10n/l10n_util.h"
  14 #include "ui/base/resource/resource_bundle.h"
  15 #include "ui/gfx/display.h"
  16
  17 namespace ash {
  18
  19 namespace tray {
  20
  21 // Extends TrayItemMore, however does not make use of the chevron, nor of the
  22 // DetailedView. This was chosen over ActionableView in order to reuse the
  23 // layout and styling of labels and images. This allows RotationLockDefaultView
  24 // to maintain the look of other system tray items without code duplication.
  25 class RotationLockDefaultView : public TrayItemMore,
  26                                 public ShellObserver {
  27  public:
  28   explicit RotationLockDefaultView(SystemTrayItem* owner);
  29   virtual ~RotationLockDefaultView();
  30
  31   // ActionableView:
  32   virtual bool PerformAction(const ui::Event& event) OVERRIDE;
  33
  34   // ShellObserver:
  35   virtual void OnMaximizeModeStarted() OVERRIDE;
  36   virtual void OnMaximizeModeEnded() OVERRIDE;
  37
  38  private:
  39   void UpdateImage();
  40
  41   DISALLOW_COPY_AND_ASSIGN(RotationLockDefaultView);
  42 };
  43
  44 RotationLockDefaultView::RotationLockDefaultView(SystemTrayItem* owner)
  45     : TrayItemMore(owner, false) {
  46   UpdateImage();
  47   SetVisible(Shell::GetInstance()->IsMaximizeModeWindowManagerEnabled());
  48   Shell::GetInstance()->AddShellObserver(this);
  49 }
  50
  51 RotationLockDefaultView::~RotationLockDefaultView() {
  52   Shell::GetInstance()->RemoveShellObserver(this);
  53 }
  54
  55 bool RotationLockDefaultView::PerformAction(const ui::Event& event) {
  56   MaximizeModeController* maximize_mode_controller = Shell::GetInstance()->
  57       maximize_mode_controller();
  58   bool rotation_locked = !maximize_mode_controller->rotation_locked();
  59   maximize_mode_controller->set_rotation_locked(rotation_locked);
  60
  61   UpdateImage();
  62
  63   // RotationLockDefaultView can only be created by a TrayRotationLock. The
  64   // owner needs to be told of the action so that it can update its visibility.
  65   static_cast<TrayRotationLock*>(owner())->tray_view()->
  66       SetVisible(rotation_locked);
  67
  68   return true;
  69 }
  70
  71 void RotationLockDefaultView::OnMaximizeModeStarted() {
  72   UpdateImage();
  73   SetVisible(true);
  74 }
  75
  76 void RotationLockDefaultView::OnMaximizeModeEnded() {
  77   SetVisible(false);
  78 }
  79
  80 void RotationLockDefaultView::UpdateImage() {
  81   base::string16 label;
  82   ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
  83   if (Shell::GetInstance()->maximize_mode_controller()->rotation_locked()) {
  84     SetImage(bundle.GetImageNamed(
  85         IDR_AURA_UBER_TRAY_AUTO_ROTATION_LOCKED_DARK).ToImageSkia());
  86     label = l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_ROTATION_LOCK_LOCKED);
  87     SetLabel(label);
  88     SetAccessibleName(label);
  89   } else {
  90     SetImage(bundle.GetImageNamed(IDR_AURA_UBER_TRAY_AUTO_ROTATION_DARK).
  91         ToImageSkia());
  92     label = l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_ROTATION_LOCK_AUTO);
  93     SetLabel(label);
  94     SetAccessibleName(label);
  95   }
  96 }
  97
  98 }  // namespace tray
  99
 100 TrayRotationLock::TrayRotationLock(SystemTray* system_tray)
 101     : TrayImageItem(system_tray, IDR_AURA_UBER_TRAY_AUTO_ROTATION_LOCKED),
 102       on_primary_display_(false) {
 103   gfx::NativeView native_view = system_tray->GetWidget()->GetNativeView();
 104   gfx::Display parent_display = Shell::GetScreen()->
 105       GetDisplayNearestWindow(native_view);
 106
 107   on_primary_display_ = parent_display.IsInternal();
 108
 109   if (on_primary_display_)
 110     Shell::GetInstance()->AddShellObserver(this);
 111 }
 112
 113 TrayRotationLock::~TrayRotationLock() {
 114   if (on_primary_display_)
 115     Shell::GetInstance()->RemoveShellObserver(this);
 116 }
 117
 118 views::View* TrayRotationLock::CreateDefaultView(user::LoginStatus status) {
 119   if (on_primary_display_)
 120     return new tray::RotationLockDefaultView(this);
 121   return NULL;
 122 }
 123
 124 void TrayRotationLock::OnMaximizeModeStarted() {
 125   tray_view()->SetVisible(
 126       Shell::GetInstance()->maximize_mode_controller()->rotation_locked());
 127 }
 128
 129 void TrayRotationLock::OnMaximizeModeEnded() {
 130   tray_view()->SetVisible(false);
 131 }
 132
 133 bool TrayRotationLock::GetInitialVisibility() {
 134   return on_primary_display_ &&
 135          Shell::GetInstance()->IsMaximizeModeWindowManagerEnabled() &&
 136          Shell::GetInstance()->maximize_mode_controller()->rotation_locked();
 137 }
 138
 139 }  // namespace ash