src/ash/system/chromeos/tray_display.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/chromeos/tray_display.h"
   6
   7 #include "ash/display/display_controller.h"
   8 #include "ash/display/display_manager.h"
   9 #include "ash/shell.h"
  10 #include "ash/system/system_notifier.h"
  11 #include "ash/system/tray/actionable_view.h"
  12 #include "ash/system/tray/fixed_sized_image_view.h"
  13 #include "ash/system/tray/system_tray.h"
  14 #include "ash/system/tray/system_tray_delegate.h"
  15 #include "ash/system/tray/tray_constants.h"
  16 #include "ash/system/tray/tray_notification_view.h"
  17 #include "base/bind.h"
  18 #include "base/strings/string_util.h"
  19 #include "base/strings/utf_string_conversions.h"
  20 #include "grit/ash_resources.h"
  21 #include "grit/ash_strings.h"
  22 #include "ui/base/l10n/l10n_util.h"
  23 #include "ui/base/resource/resource_bundle.h"
  24 #include "ui/message_center/message_center.h"
  25 #include "ui/message_center/notification.h"
  26 #include "ui/message_center/notification_delegate.h"
  27 #include "ui/views/controls/image_view.h"
  28 #include "ui/views/controls/label.h"
  29 #include "ui/views/layout/box_layout.h"
  30
  31 using message_center::Notification;
  32
  33 namespace ash {
  34 namespace {
  35
  36 DisplayManager* GetDisplayManager() {
  37   return Shell::GetInstance()->display_manager();
  38 }
  39
  40 base::string16 GetDisplayName(int64 display_id) {
  41   return base::UTF8ToUTF16(
  42       GetDisplayManager()->GetDisplayNameForId(display_id));
  43 }
  44
  45 base::string16 GetDisplaySize(int64 display_id) {
  46   DisplayManager* display_manager = GetDisplayManager();
  47
  48   const gfx::Display* display = &display_manager->GetDisplayForId(display_id);
  49
  50   // We don't show display size for mirrored display. Fallback
  51   // to empty string if this happens on release build.
  52   bool mirrored_display = display_manager->mirrored_display_id() == display_id;
  53   DCHECK(!mirrored_display);
  54   if (mirrored_display)
  55     return base::string16();
  56
  57   DCHECK(display->is_valid());
  58   return base::UTF8ToUTF16(display->size().ToString());
  59 }
  60
  61 // Returns 1-line information for the specified display, like
  62 // "InternalDisplay: 1280x750"
  63 base::string16 GetDisplayInfoLine(int64 display_id) {
  64   const DisplayInfo& display_info =
  65       GetDisplayManager()->GetDisplayInfo(display_id);
  66   if (GetDisplayManager()->mirrored_display_id() == display_id)
  67     return GetDisplayName(display_id);
  68
  69   base::string16 size_text = GetDisplaySize(display_id);
  70   base::string16 display_data;
  71   if (display_info.has_overscan()) {
  72     display_data = l10n_util::GetStringFUTF16(
  73         IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATION,
  74         size_text,
  75         l10n_util::GetStringUTF16(
  76             IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATION_OVERSCAN));
  77   } else {
  78     display_data = size_text;
  79   }
  80
  81   return l10n_util::GetStringFUTF16(
  82       IDS_ASH_STATUS_TRAY_DISPLAY_SINGLE_DISPLAY,
  83       GetDisplayName(display_id),
  84       display_data);
  85 }
  86
  87 base::string16 GetAllDisplayInfo() {
  88   DisplayManager* display_manager = GetDisplayManager();
  89   std::vector<base::string16> lines;
  90   int64 internal_id = gfx::Display::kInvalidDisplayID;
  91   // Make sure to show the internal display first.
  92   if (display_manager->HasInternalDisplay() &&
  93       display_manager->IsInternalDisplayId(
  94           display_manager->first_display_id())) {
  95     internal_id = display_manager->first_display_id();
  96     lines.push_back(GetDisplayInfoLine(internal_id));
  97   }
  98
  99   for (size_t i = 0; i < display_manager->GetNumDisplays(); ++i) {
 100     int64 id = display_manager->GetDisplayAt(i).id();
 101     if (id == internal_id)
 102       continue;
 103     lines.push_back(GetDisplayInfoLine(id));
 104   }
 105
 106   return JoinString(lines, '\n');
 107 }
 108
 109 void OpenSettings() {
 110   // switch is intentionally introduced without default, to cause an error when
 111   // a new type of login status is introduced.
 112   switch (Shell::GetInstance()->system_tray_delegate()->GetUserLoginStatus()) {
 113     case user::LOGGED_IN_NONE:
 114     case user::LOGGED_IN_LOCKED:
 115       return;
 116
 117     case user::LOGGED_IN_USER:
 118     case user::LOGGED_IN_OWNER:
 119     case user::LOGGED_IN_GUEST:
 120     case user::LOGGED_IN_RETAIL_MODE:
 121     case user::LOGGED_IN_PUBLIC:
 122     case user::LOGGED_IN_LOCALLY_MANAGED:
 123     case user::LOGGED_IN_KIOSK_APP:
 124       Shell::GetInstance()->system_tray_delegate()->ShowDisplaySettings();
 125   }
 126 }
 127
 128 }  // namespace
 129
 130 const char TrayDisplay::kNotificationId[] = "chrome://settings/display";
 131
 132 class DisplayView : public ActionableView {
 133  public:
 134   explicit DisplayView() {
 135     SetLayoutManager(new views::BoxLayout(
 136         views::BoxLayout::kHorizontal,
 137         kTrayPopupPaddingHorizontal, 0,
 138         kTrayPopupPaddingBetweenItems));
 139
 140     ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
 141     image_ = new FixedSizedImageView(0, kTrayPopupItemHeight);
 142     image_->SetImage(
 143         bundle.GetImageNamed(IDR_AURA_UBER_TRAY_DISPLAY).ToImageSkia());
 144     AddChildView(image_);
 145
 146     label_ = new views::Label();
 147     label_->SetMultiLine(true);
 148     label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 149     AddChildView(label_);
 150     Update();
 151   }
 152
 153   virtual ~DisplayView() {}
 154
 155   void Update() {
 156     base::string16 message = GetTrayDisplayMessage(NULL);
 157     if (message.empty() && ShouldShowFirstDisplayInfo())
 158       message = GetDisplayInfoLine(GetDisplayManager()->first_display_id());
 159     SetVisible(!message.empty());
 160     label_->SetText(message);
 161     SetAccessibleName(message);
 162     Layout();
 163   }
 164
 165   const views::Label* label() const { return label_; }
 166
 167   // Overridden from views::View.
 168   virtual bool GetTooltipText(const gfx::Point& p,
 169                               base::string16* tooltip) const OVERRIDE {
 170     base::string16 tray_message = GetTrayDisplayMessage(NULL);
 171     base::string16 display_message = GetAllDisplayInfo();
 172     if (tray_message.empty() && display_message.empty())
 173       return false;
 174
 175     *tooltip = tray_message + base::ASCIIToUTF16("\n") + display_message;
 176     return true;
 177   }
 178
 179   // Returns the name of the currently connected external display.
 180   // This should not be used when the external display is used for
 181   // mirroring.
 182   static base::string16 GetExternalDisplayName() {
 183     DisplayManager* display_manager = GetDisplayManager();
 184     DCHECK(!display_manager->IsMirrored());
 185
 186     int64 external_id = gfx::Display::kInvalidDisplayID;
 187     for (size_t i = 0; i < display_manager->GetNumDisplays(); ++i) {
 188       int64 id = display_manager->GetDisplayAt(i).id();
 189       if (id != gfx::Display::InternalDisplayId()) {
 190         external_id = id;
 191         break;
 192       }
 193     }
 194
 195     if (external_id == gfx::Display::kInvalidDisplayID) {
 196       return l10n_util::GetStringUTF16(
 197           IDS_ASH_STATUS_TRAY_UNKNOWN_DISPLAY_NAME);
 198     }
 199
 200     // The external display name may have an annotation of "(width x height)" in
 201     // case that the display is rotated or its resolution is changed.
 202     base::string16 name = GetDisplayName(external_id);
 203     const DisplayInfo& display_info =
 204         display_manager->GetDisplayInfo(external_id);
 205     if (display_info.rotation() != gfx::Display::ROTATE_0 ||
 206         display_info.configured_ui_scale() != 1.0f ||
 207         !display_info.overscan_insets_in_dip().empty()) {
 208       name = l10n_util::GetStringFUTF16(
 209           IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATED_NAME,
 210           name, GetDisplaySize(external_id));
 211     } else if (display_info.overscan_insets_in_dip().empty() &&
 212                display_info.has_overscan()) {
 213       name = l10n_util::GetStringFUTF16(
 214           IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATED_NAME,
 215           name, l10n_util::GetStringUTF16(
 216               IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATION_OVERSCAN));
 217     }
 218
 219     return name;
 220   }
 221
 222   static base::string16 GetTrayDisplayMessage(
 223       base::string16* additional_message_out) {
 224     DisplayManager* display_manager = GetDisplayManager();
 225     if (display_manager->GetNumDisplays() > 1) {
 226       if (GetDisplayManager()->HasInternalDisplay()) {
 227         return l10n_util::GetStringFUTF16(
 228             IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED, GetExternalDisplayName());
 229       }
 230       return l10n_util::GetStringUTF16(
 231           IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED_NO_INTERNAL);
 232     }
 233
 234     if (display_manager->IsMirrored()) {
 235       if (GetDisplayManager()->HasInternalDisplay()) {
 236         return l10n_util::GetStringFUTF16(
 237             IDS_ASH_STATUS_TRAY_DISPLAY_MIRRORING,
 238             GetDisplayName(display_manager->mirrored_display_id()));
 239       }
 240       return l10n_util::GetStringUTF16(
 241           IDS_ASH_STATUS_TRAY_DISPLAY_MIRRORING_NO_INTERNAL);
 242     }
 243
 244     int64 primary_id = Shell::GetScreen()->GetPrimaryDisplay().id();
 245     if (display_manager->HasInternalDisplay() &&
 246         !display_manager->IsInternalDisplayId(primary_id)) {
 247       if (additional_message_out) {
 248         *additional_message_out = l10n_util::GetStringUTF16(
 249             IDS_ASH_STATUS_TRAY_DISPLAY_DOCKED_DESCRIPTION);
 250       }
 251       return l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_DISPLAY_DOCKED);
 252     }
 253
 254     return base::string16();
 255   }
 256
 257  private:
 258   bool ShouldShowFirstDisplayInfo() const {
 259     const DisplayInfo& display_info = GetDisplayManager()->GetDisplayInfo(
 260         GetDisplayManager()->first_display_id());
 261     return display_info.rotation() != gfx::Display::ROTATE_0 ||
 262         display_info.configured_ui_scale() != 1.0f ||
 263         !display_info.overscan_insets_in_dip().empty() ||
 264         display_info.has_overscan();
 265   }
 266
 267   // Overridden from ActionableView.
 268   virtual bool PerformAction(const ui::Event& event) OVERRIDE {
 269     OpenSettings();
 270     return true;
 271   }
 272
 273   virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE {
 274     int label_max_width = bounds().width() - kTrayPopupPaddingHorizontal * 2 -
 275         kTrayPopupPaddingBetweenItems - image_->GetPreferredSize().width();
 276     label_->SizeToFit(label_max_width);
 277   }
 278
 279   views::ImageView* image_;
 280   views::Label* label_;
 281
 282   DISALLOW_COPY_AND_ASSIGN(DisplayView);
 283 };
 284
 285 TrayDisplay::TrayDisplay(SystemTray* system_tray)
 286     : SystemTrayItem(system_tray),
 287       default_(NULL) {
 288   Shell::GetInstance()->display_controller()->AddObserver(this);
 289   UpdateDisplayInfo(NULL);
 290 }
 291
 292 TrayDisplay::~TrayDisplay() {
 293   Shell::GetInstance()->display_controller()->RemoveObserver(this);
 294 }
 295
 296 void TrayDisplay::UpdateDisplayInfo(TrayDisplay::DisplayInfoMap* old_info) {
 297   if (old_info)
 298     old_info->swap(display_info_);
 299   display_info_.clear();
 300
 301   DisplayManager* display_manager = GetDisplayManager();
 302   for (size_t i = 0; i < display_manager->GetNumDisplays(); ++i) {
 303     int64 id = display_manager->GetDisplayAt(i).id();
 304     display_info_[id] = display_manager->GetDisplayInfo(id);
 305   }
 306 }
 307
 308 bool TrayDisplay::GetDisplayMessageForNotification(
 309     const TrayDisplay::DisplayInfoMap& old_info,
 310     base::string16* message_out,
 311     base::string16* additional_message_out) {
 312   // Display is added or removed. Use the same message as the one in
 313   // the system tray.
 314   if (display_info_.size() != old_info.size()) {
 315     *message_out = DisplayView::GetTrayDisplayMessage(additional_message_out);
 316     return true;
 317   }
 318
 319   for (DisplayInfoMap::const_iterator iter = display_info_.begin();
 320        iter != display_info_.end(); ++iter) {
 321     DisplayInfoMap::const_iterator old_iter = old_info.find(iter->first);
 322     // The display's number is same but different displays. This happens
 323     // for the transition between docked mode and mirrored display. Falls back
 324     // to GetTrayDisplayMessage().
 325     if (old_iter == old_info.end()) {
 326       *message_out = DisplayView::GetTrayDisplayMessage(additional_message_out);
 327       return true;
 328     }
 329
 330     if (iter->second.configured_ui_scale() !=
 331         old_iter->second.configured_ui_scale()) {
 332       *message_out = l10n_util::GetStringFUTF16(
 333           IDS_ASH_STATUS_TRAY_DISPLAY_RESOLUTION_CHANGED,
 334           GetDisplayName(iter->first),
 335           GetDisplaySize(iter->first));
 336       return true;
 337     }
 338     if (iter->second.rotation() != old_iter->second.rotation()) {
 339       int rotation_text_id = 0;
 340       switch (iter->second.rotation()) {
 341         case gfx::Display::ROTATE_0:
 342           rotation_text_id = IDS_ASH_STATUS_TRAY_DISPLAY_STANDARD_ORIENTATION;
 343           break;
 344         case gfx::Display::ROTATE_90:
 345           rotation_text_id = IDS_ASH_STATUS_TRAY_DISPLAY_ORIENTATION_90;
 346           break;
 347         case gfx::Display::ROTATE_180:
 348           rotation_text_id = IDS_ASH_STATUS_TRAY_DISPLAY_ORIENTATION_180;
 349           break;
 350         case gfx::Display::ROTATE_270:
 351           rotation_text_id = IDS_ASH_STATUS_TRAY_DISPLAY_ORIENTATION_270;
 352           break;
 353       }
 354       *message_out = l10n_util::GetStringFUTF16(
 355           IDS_ASH_STATUS_TRAY_DISPLAY_ROTATED,
 356           GetDisplayName(iter->first),
 357           l10n_util::GetStringUTF16(rotation_text_id));
 358       return true;
 359     }
 360   }
 361
 362   // Found nothing special
 363   return false;
 364 }
 365
 366 void TrayDisplay::CreateOrUpdateNotification(
 367     const base::string16& message,
 368     const base::string16& additional_message) {
 369   // Always remove the notification to make sure the notification appears
 370   // as a popup in any situation.
 371   message_center::MessageCenter::Get()->RemoveNotification(
 372       kNotificationId, false /* by_user */);
 373
 374   if (message.empty())
 375     return;
 376
 377   ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
 378   scoped_ptr<Notification> notification(new Notification(
 379       message_center::NOTIFICATION_TYPE_SIMPLE,
 380       kNotificationId,
 381       message,
 382       additional_message,
 383       bundle.GetImageNamed(IDR_AURA_NOTIFICATION_DISPLAY),
 384       base::string16(),  // display_source
 385       message_center::NotifierId(
 386           message_center::NotifierId::SYSTEM_COMPONENT,
 387           system_notifier::kNotifierDisplay),
 388       message_center::RichNotificationData(),
 389       new message_center::HandleNotificationClickedDelegate(
 390           base::Bind(&OpenSettings))));
 391   message_center::MessageCenter::Get()->AddNotification(notification.Pass());
 392 }
 393
 394 views::View* TrayDisplay::CreateDefaultView(user::LoginStatus status) {
 395   DCHECK(default_ == NULL);
 396   default_ = new DisplayView();
 397   return default_;
 398 }
 399
 400 void TrayDisplay::DestroyDefaultView() {
 401   default_ = NULL;
 402 }
 403
 404 void TrayDisplay::OnDisplayConfigurationChanged() {
 405   DisplayInfoMap old_info;
 406   UpdateDisplayInfo(&old_info);
 407
 408   if (default_)
 409     default_->Update();
 410
 411   if (!Shell::GetInstance()->system_tray_delegate()->
 412           ShouldShowDisplayNotification()) {
 413     return;
 414   }
 415
 416   base::string16 message;
 417   base::string16 additional_message;
 418   if (GetDisplayMessageForNotification(old_info, &message, &additional_message))
 419     CreateOrUpdateNotification(message, additional_message);
 420 }
 421
 422 base::string16 TrayDisplay::GetDefaultViewMessage() const {
 423   if (!default_ || !default_->visible())
 424     return base::string16();
 425
 426   return static_cast<DisplayView*>(default_)->label()->text();
 427 }
 428
 429 bool TrayDisplay::GetAccessibleStateForTesting(ui::AXViewState* state) {
 430   views::View* view = default_;
 431   if (view) {
 432     view->GetAccessibleState(state);
 433     return true;
 434   }
 435   return false;
 436 }
 437
 438 }  // namespace ash