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 "ash/wm/maximize_mode/maximize_mode_controller.h"
  18 #include "base/bind.h"
  19 #include "base/strings/string_util.h"
  20 #include "base/strings/utf_string_conversions.h"
  21 #include "grit/ash_resources.h"
  22 #include "grit/ash_strings.h"
  23 #include "ui/base/l10n/l10n_util.h"
  24 #include "ui/base/resource/resource_bundle.h"
  25 #include "ui/message_center/message_center.h"
  26 #include "ui/message_center/notification.h"
  27 #include "ui/message_center/notification_delegate.h"
  28 #include "ui/views/controls/image_view.h"
  29 #include "ui/views/controls/label.h"
  30 #include "ui/views/layout/box_layout.h"
  31
  32 using message_center::Notification;
  33
  34 namespace ash {
  35 namespace {
  36
  37 DisplayManager* GetDisplayManager() {
  38   return Shell::GetInstance()->display_manager();
  39 }
  40
  41 base::string16 GetDisplayName(int64 display_id) {
  42   return base::UTF8ToUTF16(
  43       GetDisplayManager()->GetDisplayNameForId(display_id));
  44 }
  45
  46 base::string16 GetDisplaySize(int64 display_id) {
  47   DisplayManager* display_manager = GetDisplayManager();
  48
  49   const gfx::Display* display = &display_manager->GetDisplayForId(display_id);
  50
  51   // We don't show display size for mirrored display. Fallback
  52   // to empty string if this happens on release build.
  53   bool mirrored_display = display_manager->mirrored_display_id() == display_id;
  54   DCHECK(!mirrored_display);
  55   if (mirrored_display)
  56     return base::string16();
  57
  58   DCHECK(display->is_valid());
  59   return base::UTF8ToUTF16(display->size().ToString());
  60 }
  61
  62 // Returns 1-line information for the specified display, like
  63 // "InternalDisplay: 1280x750"
  64 base::string16 GetDisplayInfoLine(int64 display_id) {
  65   const DisplayInfo& display_info =
  66       GetDisplayManager()->GetDisplayInfo(display_id);
  67   if (GetDisplayManager()->mirrored_display_id() == display_id)
  68     return GetDisplayName(display_id);
  69
  70   base::string16 size_text = GetDisplaySize(display_id);
  71   base::string16 display_data;
  72   if (display_info.has_overscan()) {
  73     display_data = l10n_util::GetStringFUTF16(
  74         IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATION,
  75         size_text,
  76         l10n_util::GetStringUTF16(
  77             IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATION_OVERSCAN));
  78   } else {
  79     display_data = size_text;
  80   }
  81
  82   return l10n_util::GetStringFUTF16(
  83       IDS_ASH_STATUS_TRAY_DISPLAY_SINGLE_DISPLAY,
  84       GetDisplayName(display_id),
  85       display_data);
  86 }
  87
  88 base::string16 GetAllDisplayInfo() {
  89   DisplayManager* display_manager = GetDisplayManager();
  90   std::vector<base::string16> lines;
  91   int64 internal_id = gfx::Display::kInvalidDisplayID;
  92   // Make sure to show the internal display first.
  93   if (display_manager->HasInternalDisplay() &&
  94       display_manager->IsInternalDisplayId(
  95           display_manager->first_display_id())) {
  96     internal_id = display_manager->first_display_id();
  97     lines.push_back(GetDisplayInfoLine(internal_id));
  98   }
  99
 100   for (size_t i = 0; i < display_manager->GetNumDisplays(); ++i) {
 101     int64 id = display_manager->GetDisplayAt(i).id();
 102     if (id == internal_id)
 103       continue;
 104     lines.push_back(GetDisplayInfoLine(id));
 105   }
 106
 107   return JoinString(lines, '\n');
 108 }
 109
 110 void OpenSettings() {
 111   // switch is intentionally introduced without default, to cause an error when
 112   // a new type of login status is introduced.
 113   switch (Shell::GetInstance()->system_tray_delegate()->GetUserLoginStatus()) {
 114     case user::LOGGED_IN_NONE:
 115     case user::LOGGED_IN_LOCKED:
 116       return;
 117
 118     case user::LOGGED_IN_USER:
 119     case user::LOGGED_IN_OWNER:
 120     case user::LOGGED_IN_GUEST:
 121     case user::LOGGED_IN_RETAIL_MODE:
 122     case user::LOGGED_IN_PUBLIC:
 123     case user::LOGGED_IN_SUPERVISED:
 124     case user::LOGGED_IN_KIOSK_APP:
 125       ash::SystemTrayDelegate* delegate =
 126           Shell::GetInstance()->system_tray_delegate();
 127       if (delegate->ShouldShowSettings())
 128         delegate->ShowDisplaySettings();
 129   }
 130 }
 131
 132 }  // namespace
 133
 134 const char TrayDisplay::kNotificationId[] = "chrome://settings/display";
 135
 136 class DisplayView : public ActionableView {
 137  public:
 138   explicit DisplayView() {
 139     SetLayoutManager(new views::BoxLayout(
 140         views::BoxLayout::kHorizontal,
 141         kTrayPopupPaddingHorizontal, 0,
 142         kTrayPopupPaddingBetweenItems));
 143
 144     ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
 145     image_ = new FixedSizedImageView(0, kTrayPopupItemHeight);
 146     image_->SetImage(
 147         bundle.GetImageNamed(IDR_AURA_UBER_TRAY_DISPLAY).ToImageSkia());
 148     AddChildView(image_);
 149
 150     label_ = new views::Label();
 151     label_->SetMultiLine(true);
 152     label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 153     AddChildView(label_);
 154     Update();
 155   }
 156
 157   virtual ~DisplayView() {}
 158
 159   void Update() {
 160     base::string16 message = GetTrayDisplayMessage(NULL);
 161     if (message.empty() && ShouldShowFirstDisplayInfo())
 162       message = GetDisplayInfoLine(GetDisplayManager()->first_display_id());
 163     SetVisible(!message.empty());
 164     label_->SetText(message);
 165     SetAccessibleName(message);
 166     Layout();
 167   }
 168
 169   const views::Label* label() const { return label_; }
 170
 171   // Overridden from views::View.
 172   virtual bool GetTooltipText(const gfx::Point& p,
 173                               base::string16* tooltip) const OVERRIDE {
 174     base::string16 tray_message = GetTrayDisplayMessage(NULL);
 175     base::string16 display_message = GetAllDisplayInfo();
 176     if (tray_message.empty() && display_message.empty())
 177       return false;
 178
 179     *tooltip = tray_message + base::ASCIIToUTF16("\n") + display_message;
 180     return true;
 181   }
 182
 183   // Returns the name of the currently connected external display.
 184   // This should not be used when the external display is used for
 185   // mirroring.
 186   static base::string16 GetExternalDisplayName() {
 187     DisplayManager* display_manager = GetDisplayManager();
 188     DCHECK(!display_manager->IsMirrored());
 189
 190     int64 external_id = gfx::Display::kInvalidDisplayID;
 191     for (size_t i = 0; i < display_manager->GetNumDisplays(); ++i) {
 192       int64 id = display_manager->GetDisplayAt(i).id();
 193       if (id != gfx::Display::InternalDisplayId()) {
 194         external_id = id;
 195         break;
 196       }
 197     }
 198
 199     if (external_id == gfx::Display::kInvalidDisplayID) {
 200       return l10n_util::GetStringUTF16(
 201           IDS_ASH_STATUS_TRAY_UNKNOWN_DISPLAY_NAME);
 202     }
 203
 204     // The external display name may have an annotation of "(width x height)" in
 205     // case that the display is rotated or its resolution is changed.
 206     base::string16 name = GetDisplayName(external_id);
 207     const DisplayInfo& display_info =
 208         display_manager->GetDisplayInfo(external_id);
 209     if (display_info.rotation() != gfx::Display::ROTATE_0 ||
 210         display_info.configured_ui_scale() != 1.0f ||
 211         !display_info.overscan_insets_in_dip().empty()) {
 212       name = l10n_util::GetStringFUTF16(
 213           IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATED_NAME,
 214           name, GetDisplaySize(external_id));
 215     } else if (display_info.overscan_insets_in_dip().empty() &&
 216                display_info.has_overscan()) {
 217       name = l10n_util::GetStringFUTF16(
 218           IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATED_NAME,
 219           name, l10n_util::GetStringUTF16(
 220               IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATION_OVERSCAN));
 221     }
 222
 223     return name;
 224   }
 225
 226   static base::string16 GetTrayDisplayMessage(
 227       base::string16* additional_message_out) {
 228     DisplayManager* display_manager = GetDisplayManager();
 229     if (display_manager->GetNumDisplays() > 1) {
 230       if (GetDisplayManager()->HasInternalDisplay()) {
 231         return l10n_util::GetStringFUTF16(
 232             IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED, GetExternalDisplayName());
 233       }
 234       return l10n_util::GetStringUTF16(
 235           IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED_NO_INTERNAL);
 236     }
 237
 238     if (display_manager->IsMirrored()) {
 239       if (GetDisplayManager()->HasInternalDisplay()) {
 240         return l10n_util::GetStringFUTF16(
 241             IDS_ASH_STATUS_TRAY_DISPLAY_MIRRORING,
 242             GetDisplayName(display_manager->mirrored_display_id()));
 243       }
 244       return l10n_util::GetStringUTF16(
 245           IDS_ASH_STATUS_TRAY_DISPLAY_MIRRORING_NO_INTERNAL);
 246     }
 247
 248     int64 primary_id = Shell::GetScreen()->GetPrimaryDisplay().id();
 249     if (display_manager->HasInternalDisplay() &&
 250         !display_manager->IsInternalDisplayId(primary_id)) {
 251       if (additional_message_out) {
 252         *additional_message_out = l10n_util::GetStringUTF16(
 253             IDS_ASH_STATUS_TRAY_DISPLAY_DOCKED_DESCRIPTION);
 254       }
 255       return l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_DISPLAY_DOCKED);
 256     }
 257
 258     return base::string16();
 259   }
 260
 261  private:
 262   bool ShouldShowFirstDisplayInfo() const {
 263     const DisplayInfo& display_info = GetDisplayManager()->GetDisplayInfo(
 264         GetDisplayManager()->first_display_id());
 265     return display_info.rotation() != gfx::Display::ROTATE_0 ||
 266         display_info.configured_ui_scale() != 1.0f ||
 267         !display_info.overscan_insets_in_dip().empty() ||
 268         display_info.has_overscan();
 269   }
 270
 271   // Overridden from ActionableView.
 272   virtual bool PerformAction(const ui::Event& event) OVERRIDE {
 273     OpenSettings();
 274     return true;
 275   }
 276
 277   virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE {
 278     int label_max_width = bounds().width() - kTrayPopupPaddingHorizontal * 2 -
 279         kTrayPopupPaddingBetweenItems - image_->GetPreferredSize().width();
 280     label_->SizeToFit(label_max_width);
 281   }
 282
 283   views::ImageView* image_;
 284   views::Label* label_;
 285
 286   DISALLOW_COPY_AND_ASSIGN(DisplayView);
 287 };
 288
 289 TrayDisplay::TrayDisplay(SystemTray* system_tray)
 290     : SystemTrayItem(system_tray),
 291       default_(NULL) {
 292   Shell::GetInstance()->display_controller()->AddObserver(this);
 293   UpdateDisplayInfo(NULL);
 294 }
 295
 296 TrayDisplay::~TrayDisplay() {
 297   Shell::GetInstance()->display_controller()->RemoveObserver(this);
 298 }
 299
 300 void TrayDisplay::UpdateDisplayInfo(TrayDisplay::DisplayInfoMap* old_info) {
 301   if (old_info)
 302     old_info->swap(display_info_);
 303   display_info_.clear();
 304
 305   DisplayManager* display_manager = GetDisplayManager();
 306   for (size_t i = 0; i < display_manager->GetNumDisplays(); ++i) {
 307     int64 id = display_manager->GetDisplayAt(i).id();
 308     display_info_[id] = display_manager->GetDisplayInfo(id);
 309   }
 310 }
 311
 312 bool TrayDisplay::GetDisplayMessageForNotification(
 313     const TrayDisplay::DisplayInfoMap& old_info,
 314     base::string16* message_out,
 315     base::string16* additional_message_out) {
 316   // Display is added or removed. Use the same message as the one in
 317   // the system tray.
 318   if (display_info_.size() != old_info.size()) {
 319     *message_out = DisplayView::GetTrayDisplayMessage(additional_message_out);
 320     return true;
 321   }
 322
 323   for (DisplayInfoMap::const_iterator iter = display_info_.begin();
 324        iter != display_info_.end(); ++iter) {
 325     DisplayInfoMap::const_iterator old_iter = old_info.find(iter->first);
 326     // The display's number is same but different displays. This happens
 327     // for the transition between docked mode and mirrored display. Falls back
 328     // to GetTrayDisplayMessage().
 329     if (old_iter == old_info.end()) {
 330       *message_out = DisplayView::GetTrayDisplayMessage(additional_message_out);
 331       return true;
 332     }
 333
 334     if (iter->second.configured_ui_scale() !=
 335         old_iter->second.configured_ui_scale()) {
 336       *message_out = l10n_util::GetStringFUTF16(
 337           IDS_ASH_STATUS_TRAY_DISPLAY_RESOLUTION_CHANGED,
 338           GetDisplayName(iter->first),
 339           GetDisplaySize(iter->first));
 340       return true;
 341     }
 342     if (iter->second.rotation() != old_iter->second.rotation()) {
 343       int rotation_text_id = 0;
 344       switch (iter->second.rotation()) {
 345         case gfx::Display::ROTATE_0:
 346           rotation_text_id = IDS_ASH_STATUS_TRAY_DISPLAY_STANDARD_ORIENTATION;
 347           break;
 348         case gfx::Display::ROTATE_90:
 349           rotation_text_id = IDS_ASH_STATUS_TRAY_DISPLAY_ORIENTATION_90;
 350           break;
 351         case gfx::Display::ROTATE_180:
 352           rotation_text_id = IDS_ASH_STATUS_TRAY_DISPLAY_ORIENTATION_180;
 353           break;
 354         case gfx::Display::ROTATE_270:
 355           rotation_text_id = IDS_ASH_STATUS_TRAY_DISPLAY_ORIENTATION_270;
 356           break;
 357       }
 358       *message_out = l10n_util::GetStringFUTF16(
 359           IDS_ASH_STATUS_TRAY_DISPLAY_ROTATED,
 360           GetDisplayName(iter->first),
 361           l10n_util::GetStringUTF16(rotation_text_id));
 362       return true;
 363     }
 364   }
 365
 366   // Found nothing special
 367   return false;
 368 }
 369
 370 void TrayDisplay::CreateOrUpdateNotification(
 371     const base::string16& message,
 372     const base::string16& additional_message) {
 373   // Always remove the notification to make sure the notification appears
 374   // as a popup in any situation.
 375   message_center::MessageCenter::Get()->RemoveNotification(
 376       kNotificationId, false /* by_user */);
 377
 378   if (message.empty())
 379     return;
 380
 381   // Don't display notifications for accelerometer triggered screen rotations.
 382   // See http://crbug.com/364949
 383   if (Shell::GetInstance()->maximize_mode_controller()->
 384       in_set_screen_rotation()) {
 385     return;
 386   }
 387
 388   ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
 389   scoped_ptr<Notification> notification(new Notification(
 390       message_center::NOTIFICATION_TYPE_SIMPLE,
 391       kNotificationId,
 392       message,
 393       additional_message,
 394       bundle.GetImageNamed(IDR_AURA_NOTIFICATION_DISPLAY),
 395       base::string16(),  // display_source
 396       message_center::NotifierId(
 397           message_center::NotifierId::SYSTEM_COMPONENT,
 398           system_notifier::kNotifierDisplay),
 399       message_center::RichNotificationData(),
 400       new message_center::HandleNotificationClickedDelegate(
 401           base::Bind(&OpenSettings))));
 402
 403     message_center::MessageCenter::Get()->AddNotification(notification.Pass());
 404 }
 405
 406 views::View* TrayDisplay::CreateDefaultView(user::LoginStatus status) {
 407   DCHECK(default_ == NULL);
 408   default_ = new DisplayView();
 409   return default_;
 410 }
 411
 412 void TrayDisplay::DestroyDefaultView() {
 413   default_ = NULL;
 414 }
 415
 416 void TrayDisplay::OnDisplayConfigurationChanged() {
 417   DisplayInfoMap old_info;
 418   UpdateDisplayInfo(&old_info);
 419
 420   if (default_)
 421     default_->Update();
 422
 423   if (!Shell::GetInstance()->system_tray_delegate()->
 424           ShouldShowDisplayNotification()) {
 425     return;
 426   }
 427
 428   base::string16 message;
 429   base::string16 additional_message;
 430   if (GetDisplayMessageForNotification(old_info, &message, &additional_message))
 431     CreateOrUpdateNotification(message, additional_message);
 432 }
 433
 434 base::string16 TrayDisplay::GetDefaultViewMessage() const {
 435   if (!default_ || !default_->visible())
 436     return base::string16();
 437
 438   return static_cast<DisplayView*>(default_)->label()->text();
 439 }
 440
 441 bool TrayDisplay::GetAccessibleStateForTesting(ui::AXViewState* state) {
 442   views::View* view = default_;
 443   if (view) {
 444     view->GetAccessibleState(state);
 445     return true;
 446   }
 447   return false;
 448 }
 449
 450 }  // namespace ash