ash/display/display_manager_unittest.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/display/display_manager.h"
   6
   7 #include "ash/ash_switches.h"
   8 #include "ash/display/display_controller.h"
   9 #include "ash/display/display_info.h"
  10 #include "ash/display/display_layout_store.h"
  11 #include "ash/display/display_util.h"
  12 #include "ash/screen_util.h"
  13 #include "ash/shell.h"
  14 #include "ash/test/ash_test_base.h"
  15 #include "ash/test/display_manager_test_api.h"
  16 #include "ash/test/mirror_window_test_api.h"
  17 #include "base/command_line.h"
  18 #include "base/format_macros.h"
  19 #include "base/strings/string_number_conversions.h"
  20 #include "base/strings/stringprintf.h"
  21 #include "ui/aura/env.h"
  22 #include "ui/aura/window_observer.h"
  23 #include "ui/aura/window_tree_host.h"
  24 #include "ui/events/test/event_generator.h"
  25 #include "ui/gfx/display.h"
  26 #include "ui/gfx/display_observer.h"
  27 #include "ui/gfx/font_render_params.h"
  28 #include "ui/gfx/screen.h"
  29 #include "ui/gfx/screen_type_delegate.h"
  30
  31 namespace ash {
  32
  33 using std::vector;
  34 using std::string;
  35
  36 using base::StringPrintf;
  37
  38 namespace {
  39
  40 std::string ToDisplayName(int64 id) {
  41   return "x-" + base::Int64ToString(id);
  42 }
  43
  44 }  // namespace
  45
  46 class DisplayManagerTest : public test::AshTestBase,
  47                            public gfx::DisplayObserver,
  48                            public aura::WindowObserver {
  49  public:
  50   DisplayManagerTest()
  51       : removed_count_(0U),
  52         root_window_destroyed_(false),
  53         changed_metrics_(0U) {
  54   }
  55   ~DisplayManagerTest() override {}
  56
  57   void SetUp() override {
  58     AshTestBase::SetUp();
  59     Shell::GetScreen()->AddObserver(this);
  60     Shell::GetPrimaryRootWindow()->AddObserver(this);
  61   }
  62   void TearDown() override {
  63     Shell::GetPrimaryRootWindow()->RemoveObserver(this);
  64     Shell::GetScreen()->RemoveObserver(this);
  65     AshTestBase::TearDown();
  66   }
  67
  68   DisplayManager* display_manager() {
  69     return Shell::GetInstance()->display_manager();
  70   }
  71   const vector<gfx::Display>& changed() const { return changed_; }
  72   const vector<gfx::Display>& added() const { return added_; }
  73   uint32_t changed_metrics() const { return changed_metrics_; }
  74
  75   string GetCountSummary() const {
  76     return StringPrintf("%" PRIuS " %" PRIuS " %" PRIuS,
  77                         changed_.size(), added_.size(), removed_count_);
  78   }
  79
  80   void reset() {
  81     changed_.clear();
  82     added_.clear();
  83     removed_count_ = 0U;
  84     changed_metrics_ = 0U;
  85     root_window_destroyed_ = false;
  86   }
  87
  88   bool root_window_destroyed() const {
  89     return root_window_destroyed_;
  90   }
  91
  92   const DisplayInfo& GetDisplayInfo(const gfx::Display& display) {
  93     return display_manager()->GetDisplayInfo(display.id());
  94   }
  95
  96   const DisplayInfo& GetDisplayInfoAt(int index) {
  97     return GetDisplayInfo(display_manager()->GetDisplayAt(index));
  98   }
  99
 100   const gfx::Display& GetDisplayForId(int64 id) {
 101     return display_manager()->GetDisplayForId(id);
 102   }
 103
 104   const DisplayInfo& GetDisplayInfoForId(int64 id) {
 105     return GetDisplayInfo(display_manager()->GetDisplayForId(id));
 106   }
 107
 108   // aura::DisplayObserver overrides:
 109   void OnDisplayMetricsChanged(const gfx::Display& display,
 110                                uint32_t changed_metrics) override {
 111     changed_.push_back(display);
 112     changed_metrics_ |= changed_metrics;
 113   }
 114   void OnDisplayAdded(const gfx::Display& new_display) override {
 115     added_.push_back(new_display);
 116   }
 117   void OnDisplayRemoved(const gfx::Display& old_display) override {
 118     ++removed_count_;
 119   }
 120
 121   // aura::WindowObserver overrides:
 122   void OnWindowDestroying(aura::Window* window) override {
 123     ASSERT_EQ(Shell::GetPrimaryRootWindow(), window);
 124     root_window_destroyed_ = true;
 125   }
 126
 127  private:
 128   vector<gfx::Display> changed_;
 129   vector<gfx::Display> added_;
 130   size_t removed_count_;
 131   bool root_window_destroyed_;
 132   uint32_t changed_metrics_;
 133
 134   DISALLOW_COPY_AND_ASSIGN(DisplayManagerTest);
 135 };
 136
 137 TEST_F(DisplayManagerTest, UpdateDisplayTest) {
 138   if (!SupportsMultipleDisplays())
 139     return;
 140
 141   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 142
 143   // Update primary and add seconary.
 144   UpdateDisplay("100+0-500x500,0+501-400x400");
 145   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 146   EXPECT_EQ("0,0 500x500",
 147             display_manager()->GetDisplayAt(0).bounds().ToString());
 148
 149   EXPECT_EQ("1 1 0", GetCountSummary());
 150   EXPECT_EQ(display_manager()->GetDisplayAt(0).id(), changed()[0].id());
 151   EXPECT_EQ(display_manager()->GetDisplayAt(1).id(), added()[0].id());
 152   EXPECT_EQ("0,0 500x500", changed()[0].bounds().ToString());
 153   // Secondary display is on right.
 154   EXPECT_EQ("500,0 400x400", added()[0].bounds().ToString());
 155   EXPECT_EQ("0,501 400x400",
 156             GetDisplayInfo(added()[0]).bounds_in_native().ToString());
 157   reset();
 158
 159   // Delete secondary.
 160   UpdateDisplay("100+0-500x500");
 161   EXPECT_EQ("0 0 1", GetCountSummary());
 162   reset();
 163
 164   // Change primary.
 165   UpdateDisplay("1+1-1000x600");
 166   EXPECT_EQ("1 0 0", GetCountSummary());
 167   EXPECT_EQ(display_manager()->GetDisplayAt(0).id(), changed()[0].id());
 168   EXPECT_EQ("0,0 1000x600", changed()[0].bounds().ToString());
 169   reset();
 170
 171   // Add secondary.
 172   UpdateDisplay("1+1-1000x600,1002+0-600x400");
 173   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 174   EXPECT_EQ("0 1 0", GetCountSummary());
 175   EXPECT_EQ(display_manager()->GetDisplayAt(1).id(), added()[0].id());
 176   // Secondary display is on right.
 177   EXPECT_EQ("1000,0 600x400", added()[0].bounds().ToString());
 178   EXPECT_EQ("1002,0 600x400",
 179             GetDisplayInfo(added()[0]).bounds_in_native().ToString());
 180   reset();
 181
 182   // Secondary removed, primary changed.
 183   UpdateDisplay("1+1-800x300");
 184   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 185   EXPECT_EQ("1 0 1", GetCountSummary());
 186   EXPECT_EQ(display_manager()->GetDisplayAt(0).id(), changed()[0].id());
 187   EXPECT_EQ("0,0 800x300", changed()[0].bounds().ToString());
 188   reset();
 189
 190   // # of display can go to zero when screen is off.
 191   const vector<DisplayInfo> empty;
 192   display_manager()->OnNativeDisplaysChanged(empty);
 193   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 194   EXPECT_EQ("0 0 0", GetCountSummary());
 195   EXPECT_FALSE(root_window_destroyed());
 196   // Display configuration stays the same
 197   EXPECT_EQ("0,0 800x300",
 198             display_manager()->GetDisplayAt(0).bounds().ToString());
 199   reset();
 200
 201   // Connect to display again
 202   UpdateDisplay("100+100-500x400");
 203   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 204   EXPECT_EQ("1 0 0", GetCountSummary());
 205   EXPECT_FALSE(root_window_destroyed());
 206   EXPECT_EQ("0,0 500x400", changed()[0].bounds().ToString());
 207   EXPECT_EQ("100,100 500x400",
 208             GetDisplayInfo(changed()[0]).bounds_in_native().ToString());
 209   reset();
 210
 211   // Go back to zero and wake up with multiple displays.
 212   display_manager()->OnNativeDisplaysChanged(empty);
 213   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 214   EXPECT_FALSE(root_window_destroyed());
 215   reset();
 216
 217   // Add secondary.
 218   UpdateDisplay("0+0-1000x600,1000+1000-600x400");
 219   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 220   EXPECT_EQ("0,0 1000x600",
 221             display_manager()->GetDisplayAt(0).bounds().ToString());
 222   // Secondary display is on right.
 223   EXPECT_EQ("1000,0 600x400",
 224             display_manager()->GetDisplayAt(1).bounds().ToString());
 225   EXPECT_EQ("1000,1000 600x400",
 226             GetDisplayInfoAt(1).bounds_in_native().ToString());
 227   reset();
 228
 229   // Changing primary will update secondary as well.
 230   UpdateDisplay("0+0-800x600,1000+1000-600x400");
 231   EXPECT_EQ("2 0 0", GetCountSummary());
 232   reset();
 233   EXPECT_EQ("0,0 800x600",
 234             display_manager()->GetDisplayAt(0).bounds().ToString());
 235   EXPECT_EQ("800,0 600x400",
 236             display_manager()->GetDisplayAt(1).bounds().ToString());
 237 }
 238
 239 TEST_F(DisplayManagerTest, ScaleOnlyChange) {
 240   if (!SupportsMultipleDisplays())
 241     return;
 242   display_manager()->ToggleDisplayScaleFactor();
 243   EXPECT_TRUE(changed_metrics() & gfx::DisplayObserver::DISPLAY_METRIC_BOUNDS);
 244   EXPECT_TRUE(changed_metrics() &
 245               gfx::DisplayObserver::DISPLAY_METRIC_WORK_AREA);
 246 }
 247
 248 // Test in emulation mode (use_fullscreen_host_window=false)
 249 TEST_F(DisplayManagerTest, EmulatorTest) {
 250   if (!SupportsMultipleDisplays())
 251     return;
 252
 253   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 254
 255   display_manager()->AddRemoveDisplay();
 256   // Update primary and add seconary.
 257   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 258   EXPECT_EQ("0 1 0", GetCountSummary());
 259   reset();
 260
 261   display_manager()->AddRemoveDisplay();
 262   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 263   EXPECT_EQ("0 0 1", GetCountSummary());
 264   reset();
 265
 266   display_manager()->AddRemoveDisplay();
 267   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 268   EXPECT_EQ("0 1 0", GetCountSummary());
 269   reset();
 270 }
 271
 272 // Tests support for 3 displays.
 273 TEST_F(DisplayManagerTest, UpdateThreeDisplaysTest) {
 274   if (!SupportsMultipleDisplays())
 275     return;
 276
 277   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 278
 279   // Test with three displays.
 280   UpdateDisplay("0+0-640x480,640+0-320x200,960+0-400x300");
 281   EXPECT_EQ(3U, display_manager()->GetNumDisplays());
 282   EXPECT_EQ("0,0 640x480",
 283             display_manager()->GetDisplayAt(0).bounds().ToString());
 284   EXPECT_EQ("640,0 320x200",
 285             display_manager()->GetDisplayAt(1).bounds().ToString());
 286   EXPECT_EQ("960,0 400x300",
 287             display_manager()->GetDisplayAt(2).bounds().ToString());
 288
 289   EXPECT_EQ("1 2 0", GetCountSummary());
 290   EXPECT_EQ(display_manager()->GetDisplayAt(0).id(), changed()[0].id());
 291   EXPECT_EQ(display_manager()->GetDisplayAt(1).id(), added()[0].id());
 292   EXPECT_EQ(display_manager()->GetDisplayAt(2).id(), added()[1].id());
 293   EXPECT_EQ("0,0 640x480", changed()[0].bounds().ToString());
 294   // Secondary and terniary displays are on right.
 295   EXPECT_EQ("640,0 320x200", added()[0].bounds().ToString());
 296   EXPECT_EQ("640,0 320x200",
 297             GetDisplayInfo(added()[0]).bounds_in_native().ToString());
 298   EXPECT_EQ("960,0 400x300", added()[1].bounds().ToString());
 299   EXPECT_EQ("960,0 400x300",
 300             GetDisplayInfo(added()[1]).bounds_in_native().ToString());
 301   reset();
 302 }
 303
 304 TEST_F(DisplayManagerTest, OverscanInsetsTest) {
 305   if (!SupportsMultipleDisplays())
 306     return;
 307
 308   UpdateDisplay("0+0-500x500,0+501-400x400");
 309   reset();
 310   ASSERT_EQ(2u, display_manager()->GetNumDisplays());
 311   const DisplayInfo& display_info1 = GetDisplayInfoAt(0);
 312   const DisplayInfo& display_info2 = GetDisplayInfoAt(1);
 313   display_manager()->SetOverscanInsets(
 314       display_info2.id(), gfx::Insets(13, 12, 11, 10));
 315
 316   std::vector<gfx::Display> changed_displays = changed();
 317   EXPECT_EQ(1u, changed_displays.size());
 318   EXPECT_EQ(display_info2.id(), changed_displays[0].id());
 319   EXPECT_EQ("0,0 500x500",
 320             GetDisplayInfoAt(0).bounds_in_native().ToString());
 321   DisplayInfo updated_display_info2 = GetDisplayInfoAt(1);
 322   EXPECT_EQ("0,501 400x400",
 323             updated_display_info2.bounds_in_native().ToString());
 324   EXPECT_EQ("378x376",
 325             updated_display_info2.size_in_pixel().ToString());
 326   EXPECT_EQ("13,12,11,10",
 327             updated_display_info2.overscan_insets_in_dip().ToString());
 328   EXPECT_EQ("500,0 378x376",
 329             ScreenUtil::GetSecondaryDisplay().bounds().ToString());
 330
 331   // Make sure that SetOverscanInsets() is idempotent.
 332   display_manager()->SetOverscanInsets(display_info1.id(), gfx::Insets());
 333   display_manager()->SetOverscanInsets(
 334       display_info2.id(), gfx::Insets(13, 12, 11, 10));
 335   EXPECT_EQ("0,0 500x500",
 336             GetDisplayInfoAt(0).bounds_in_native().ToString());
 337   updated_display_info2 = GetDisplayInfoAt(1);
 338   EXPECT_EQ("0,501 400x400",
 339             updated_display_info2.bounds_in_native().ToString());
 340   EXPECT_EQ("378x376",
 341             updated_display_info2.size_in_pixel().ToString());
 342   EXPECT_EQ("13,12,11,10",
 343             updated_display_info2.overscan_insets_in_dip().ToString());
 344
 345   display_manager()->SetOverscanInsets(
 346       display_info2.id(), gfx::Insets(10, 11, 12, 13));
 347   EXPECT_EQ("0,0 500x500",
 348             GetDisplayInfoAt(0).bounds_in_native().ToString());
 349   EXPECT_EQ("376x378",
 350             GetDisplayInfoAt(1).size_in_pixel().ToString());
 351   EXPECT_EQ("10,11,12,13",
 352             GetDisplayInfoAt(1).overscan_insets_in_dip().ToString());
 353
 354   // Recreate a new 2nd display. It won't apply the overscan inset because the
 355   // new display has a different ID.
 356   UpdateDisplay("0+0-500x500");
 357   UpdateDisplay("0+0-500x500,0+501-400x400");
 358   EXPECT_EQ("0,0 500x500",
 359             GetDisplayInfoAt(0).bounds_in_native().ToString());
 360   EXPECT_EQ("0,501 400x400",
 361             GetDisplayInfoAt(1).bounds_in_native().ToString());
 362
 363   // Recreate the displays with the same ID.  It should apply the overscan
 364   // inset.
 365   UpdateDisplay("0+0-500x500");
 366   std::vector<DisplayInfo> display_info_list;
 367   display_info_list.push_back(display_info1);
 368   display_info_list.push_back(display_info2);
 369   display_manager()->OnNativeDisplaysChanged(display_info_list);
 370   EXPECT_EQ("1,1 500x500",
 371             GetDisplayInfoAt(0).bounds_in_native().ToString());
 372   updated_display_info2 = GetDisplayInfoAt(1);
 373   EXPECT_EQ("376x378",
 374             updated_display_info2.size_in_pixel().ToString());
 375   EXPECT_EQ("10,11,12,13",
 376             updated_display_info2.overscan_insets_in_dip().ToString());
 377
 378   // HiDPI but overscan display. The specified insets size should be doubled.
 379   UpdateDisplay("0+0-500x500,0+501-400x400*2");
 380   display_manager()->SetOverscanInsets(
 381       display_manager()->GetDisplayAt(1).id(), gfx::Insets(4, 5, 6, 7));
 382   EXPECT_EQ("0,0 500x500",
 383             GetDisplayInfoAt(0).bounds_in_native().ToString());
 384   updated_display_info2 = GetDisplayInfoAt(1);
 385   EXPECT_EQ("0,501 400x400",
 386             updated_display_info2.bounds_in_native().ToString());
 387   EXPECT_EQ("376x380",
 388             updated_display_info2.size_in_pixel().ToString());
 389   EXPECT_EQ("4,5,6,7",
 390             updated_display_info2.overscan_insets_in_dip().ToString());
 391   EXPECT_EQ("8,10,12,14",
 392             updated_display_info2.GetOverscanInsetsInPixel().ToString());
 393
 394   // Make sure switching primary display applies the overscan offset only once.
 395   ash::Shell::GetInstance()->display_controller()->SetPrimaryDisplay(
 396       ScreenUtil::GetSecondaryDisplay());
 397   EXPECT_EQ("-500,0 500x500",
 398             ScreenUtil::GetSecondaryDisplay().bounds().ToString());
 399   EXPECT_EQ("0,0 500x500",
 400             GetDisplayInfo(ScreenUtil::GetSecondaryDisplay()).
 401             bounds_in_native().ToString());
 402   EXPECT_EQ("0,501 400x400",
 403             GetDisplayInfo(Shell::GetScreen()->GetPrimaryDisplay()).
 404             bounds_in_native().ToString());
 405   EXPECT_EQ("0,0 188x190",
 406             Shell::GetScreen()->GetPrimaryDisplay().bounds().ToString());
 407
 408   // Make sure just moving the overscan area should property notify observers.
 409   UpdateDisplay("0+0-500x500");
 410   int64 primary_id = Shell::GetScreen()->GetPrimaryDisplay().id();
 411   display_manager()->SetOverscanInsets(primary_id, gfx::Insets(0, 0, 20, 20));
 412   EXPECT_EQ("0,0 480x480",
 413             Shell::GetScreen()->GetPrimaryDisplay().bounds().ToString());
 414   reset();
 415   display_manager()->SetOverscanInsets(primary_id, gfx::Insets(10, 10, 10, 10));
 416   EXPECT_TRUE(changed_metrics() & gfx::DisplayObserver::DISPLAY_METRIC_BOUNDS);
 417   EXPECT_TRUE(
 418       changed_metrics() & gfx::DisplayObserver::DISPLAY_METRIC_WORK_AREA);
 419   EXPECT_EQ("0,0 480x480",
 420             Shell::GetScreen()->GetPrimaryDisplay().bounds().ToString());
 421   reset();
 422   display_manager()->SetOverscanInsets(primary_id, gfx::Insets(0, 0, 0, 0));
 423   EXPECT_TRUE(changed_metrics() & gfx::DisplayObserver::DISPLAY_METRIC_BOUNDS);
 424   EXPECT_TRUE(
 425       changed_metrics() & gfx::DisplayObserver::DISPLAY_METRIC_WORK_AREA);
 426   EXPECT_EQ("0,0 500x500",
 427             Shell::GetScreen()->GetPrimaryDisplay().bounds().ToString());
 428 }
 429
 430 TEST_F(DisplayManagerTest, ZeroOverscanInsets) {
 431   if (!SupportsMultipleDisplays())
 432     return;
 433
 434   // Make sure the display change events is emitted for overscan inset changes.
 435   UpdateDisplay("0+0-500x500,0+501-400x400");
 436   ASSERT_EQ(2u, display_manager()->GetNumDisplays());
 437   int64 display2_id = display_manager()->GetDisplayAt(1).id();
 438
 439   reset();
 440   display_manager()->SetOverscanInsets(display2_id, gfx::Insets(0, 0, 0, 0));
 441   EXPECT_EQ(0u, changed().size());
 442
 443   reset();
 444   display_manager()->SetOverscanInsets(display2_id, gfx::Insets(1, 0, 0, 0));
 445   EXPECT_EQ(1u, changed().size());
 446   EXPECT_EQ(display2_id, changed()[0].id());
 447
 448   reset();
 449   display_manager()->SetOverscanInsets(display2_id, gfx::Insets(0, 0, 0, 0));
 450   EXPECT_EQ(1u, changed().size());
 451   EXPECT_EQ(display2_id, changed()[0].id());
 452 }
 453
 454 TEST_F(DisplayManagerTest, TestDeviceScaleOnlyChange) {
 455   if (!SupportsHostWindowResize())
 456     return;
 457
 458   UpdateDisplay("1000x600");
 459   aura::WindowTreeHost* host = Shell::GetPrimaryRootWindow()->GetHost();
 460   EXPECT_EQ(1, host->compositor()->device_scale_factor());
 461   EXPECT_EQ("1000x600",
 462             Shell::GetPrimaryRootWindow()->bounds().size().ToString());
 463   EXPECT_EQ("1 0 0", GetCountSummary());
 464
 465   UpdateDisplay("1000x600*2");
 466   EXPECT_EQ(2, host->compositor()->device_scale_factor());
 467   EXPECT_EQ("2 0 0", GetCountSummary());
 468   EXPECT_EQ("500x300",
 469             Shell::GetPrimaryRootWindow()->bounds().size().ToString());
 470 }
 471
 472 DisplayInfo CreateDisplayInfo(int64 id, const gfx::Rect& bounds) {
 473   DisplayInfo info(id, ToDisplayName(id), false);
 474   info.SetBounds(bounds);
 475   return info;
 476 }
 477
 478 TEST_F(DisplayManagerTest, TestNativeDisplaysChanged) {
 479   const int64 internal_display_id =
 480       test::DisplayManagerTestApi(display_manager()).
 481       SetFirstDisplayAsInternalDisplay();
 482   const int external_id = 10;
 483   const int mirror_id = 11;
 484   const int64 invalid_id = gfx::Display::kInvalidDisplayID;
 485   const DisplayInfo internal_display_info =
 486       CreateDisplayInfo(internal_display_id, gfx::Rect(0, 0, 500, 500));
 487   const DisplayInfo external_display_info =
 488       CreateDisplayInfo(external_id, gfx::Rect(1, 1, 100, 100));
 489   const DisplayInfo mirrored_display_info =
 490       CreateDisplayInfo(mirror_id, gfx::Rect(0, 0, 500, 500));
 491
 492   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 493   EXPECT_EQ(1U, display_manager()->num_connected_displays());
 494   std::string default_bounds =
 495       display_manager()->GetDisplayAt(0).bounds().ToString();
 496
 497   std::vector<DisplayInfo> display_info_list;
 498   // Primary disconnected.
 499   display_manager()->OnNativeDisplaysChanged(display_info_list);
 500   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 501   EXPECT_EQ(default_bounds,
 502             display_manager()->GetDisplayAt(0).bounds().ToString());
 503   EXPECT_EQ(1U, display_manager()->num_connected_displays());
 504   EXPECT_FALSE(display_manager()->IsMirrored());
 505
 506   if (!SupportsMultipleDisplays())
 507     return;
 508
 509   // External connected while primary was disconnected.
 510   display_info_list.push_back(external_display_info);
 511   display_manager()->OnNativeDisplaysChanged(display_info_list);
 512   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 513
 514   EXPECT_EQ(invalid_id, GetDisplayForId(internal_display_id).id());
 515   EXPECT_EQ("1,1 100x100",
 516             GetDisplayInfoForId(external_id).bounds_in_native().ToString());
 517   EXPECT_EQ(1U, display_manager()->num_connected_displays());
 518   EXPECT_FALSE(display_manager()->IsMirrored());
 519   EXPECT_EQ(external_id, Shell::GetScreen()->GetPrimaryDisplay().id());
 520
 521   EXPECT_EQ(internal_display_id, gfx::Display::InternalDisplayId());
 522
 523   // Primary connected, with different bounds.
 524   display_info_list.clear();
 525   display_info_list.push_back(internal_display_info);
 526   display_info_list.push_back(external_display_info);
 527   display_manager()->OnNativeDisplaysChanged(display_info_list);
 528   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 529   EXPECT_EQ(internal_display_id, Shell::GetScreen()->GetPrimaryDisplay().id());
 530
 531   // This combinatino is new, so internal display becomes primary.
 532   EXPECT_EQ("0,0 500x500",
 533             GetDisplayForId(internal_display_id).bounds().ToString());
 534   EXPECT_EQ("1,1 100x100",
 535             GetDisplayInfoForId(10).bounds_in_native().ToString());
 536   EXPECT_EQ(2U, display_manager()->num_connected_displays());
 537   EXPECT_FALSE(display_manager()->IsMirrored());
 538   EXPECT_EQ(ToDisplayName(internal_display_id),
 539             display_manager()->GetDisplayNameForId(internal_display_id));
 540
 541   // Emulate suspend.
 542   display_info_list.clear();
 543   display_manager()->OnNativeDisplaysChanged(display_info_list);
 544   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 545   EXPECT_EQ("0,0 500x500",
 546             GetDisplayForId(internal_display_id).bounds().ToString());
 547   EXPECT_EQ("1,1 100x100",
 548             GetDisplayInfoForId(10).bounds_in_native().ToString());
 549   EXPECT_EQ(2U, display_manager()->num_connected_displays());
 550   EXPECT_FALSE(display_manager()->IsMirrored());
 551   EXPECT_EQ(ToDisplayName(internal_display_id),
 552             display_manager()->GetDisplayNameForId(internal_display_id));
 553
 554   // External display has disconnected then resumed.
 555   display_info_list.push_back(internal_display_info);
 556   display_manager()->OnNativeDisplaysChanged(display_info_list);
 557   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 558   EXPECT_EQ("0,0 500x500",
 559             GetDisplayForId(internal_display_id).bounds().ToString());
 560   EXPECT_EQ(1U, display_manager()->num_connected_displays());
 561   EXPECT_FALSE(display_manager()->IsMirrored());
 562
 563   // External display was changed during suspend.
 564   display_info_list.push_back(external_display_info);
 565   display_manager()->OnNativeDisplaysChanged(display_info_list);
 566   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 567   EXPECT_EQ(2U, display_manager()->num_connected_displays());
 568   EXPECT_FALSE(display_manager()->IsMirrored());
 569
 570   // suspend...
 571   display_info_list.clear();
 572   display_manager()->OnNativeDisplaysChanged(display_info_list);
 573   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 574   EXPECT_EQ(2U, display_manager()->num_connected_displays());
 575   EXPECT_FALSE(display_manager()->IsMirrored());
 576
 577   // and resume with different external display.
 578   display_info_list.push_back(internal_display_info);
 579   display_info_list.push_back(CreateDisplayInfo(12, gfx::Rect(1, 1, 100, 100)));
 580   display_manager()->OnNativeDisplaysChanged(display_info_list);
 581   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 582   EXPECT_EQ(2U, display_manager()->num_connected_displays());
 583   EXPECT_FALSE(display_manager()->IsMirrored());
 584   EXPECT_FALSE(display_manager()->IsMirrored());
 585
 586   // mirrored...
 587   display_info_list.clear();
 588   display_info_list.push_back(internal_display_info);
 589   display_info_list.push_back(mirrored_display_info);
 590   display_manager()->OnNativeDisplaysChanged(display_info_list);
 591   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 592   EXPECT_EQ("0,0 500x500",
 593             GetDisplayForId(internal_display_id).bounds().ToString());
 594   EXPECT_EQ(2U, display_manager()->num_connected_displays());
 595   EXPECT_EQ(11U, display_manager()->mirrored_display_id());
 596   EXPECT_TRUE(display_manager()->IsMirrored());
 597
 598   // Test display name.
 599   EXPECT_EQ(ToDisplayName(internal_display_id),
 600             display_manager()->GetDisplayNameForId(internal_display_id));
 601   EXPECT_EQ("x-10", display_manager()->GetDisplayNameForId(10));
 602   EXPECT_EQ("x-11", display_manager()->GetDisplayNameForId(11));
 603   EXPECT_EQ("x-12", display_manager()->GetDisplayNameForId(12));
 604   // Default name for the id that doesn't exist.
 605   EXPECT_EQ("Display 100", display_manager()->GetDisplayNameForId(100));
 606
 607   // and exit mirroring.
 608   display_info_list.clear();
 609   display_info_list.push_back(internal_display_info);
 610   display_info_list.push_back(external_display_info);
 611   display_manager()->OnNativeDisplaysChanged(display_info_list);
 612   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 613   EXPECT_EQ(2U, display_manager()->num_connected_displays());
 614   EXPECT_FALSE(display_manager()->IsMirrored());
 615   EXPECT_EQ("0,0 500x500",
 616             GetDisplayForId(internal_display_id).bounds().ToString());
 617   EXPECT_EQ("500,0 100x100",
 618             GetDisplayForId(10).bounds().ToString());
 619
 620   // Turn off internal
 621   display_info_list.clear();
 622   display_info_list.push_back(external_display_info);
 623   display_manager()->OnNativeDisplaysChanged(display_info_list);
 624   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 625   EXPECT_EQ(invalid_id, GetDisplayForId(internal_display_id).id());
 626   EXPECT_EQ("1,1 100x100",
 627             GetDisplayInfoForId(external_id).bounds_in_native().ToString());
 628   EXPECT_EQ(1U, display_manager()->num_connected_displays());
 629   EXPECT_FALSE(display_manager()->IsMirrored());
 630
 631   // Switched to another display
 632   display_info_list.clear();
 633   display_info_list.push_back(internal_display_info);
 634   display_manager()->OnNativeDisplaysChanged(display_info_list);
 635   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 636   EXPECT_EQ(
 637       "0,0 500x500",
 638       GetDisplayInfoForId(internal_display_id).bounds_in_native().ToString());
 639   EXPECT_EQ(1U, display_manager()->num_connected_displays());
 640   EXPECT_FALSE(display_manager()->IsMirrored());
 641 }
 642
 643 // Make sure crash does not happen if add and remove happens at the same time.
 644 // See: crbug.com/414394
 645 TEST_F(DisplayManagerTest, DisplayAddRemoveAtTheSameTime) {
 646   if (!SupportsMultipleDisplays())
 647     return;
 648
 649   UpdateDisplay("100+0-500x500,0+501-400x400");
 650
 651   const int64 primary_id = DisplayController::GetPrimaryDisplayId();
 652   const int64 secondary_id = ScreenUtil::GetSecondaryDisplay().id();
 653
 654   DisplayInfo primary_info = display_manager()->GetDisplayInfo(primary_id);
 655   DisplayInfo secondary_info = display_manager()->GetDisplayInfo(secondary_id);
 656
 657   // An id which is different from primary and secondary.
 658   const int64 third_id = primary_id + secondary_id;
 659
 660   DisplayInfo third_info =
 661       CreateDisplayInfo(third_id, gfx::Rect(0, 0, 600, 600));
 662
 663   std::vector<DisplayInfo> display_info_list;
 664   display_info_list.push_back(third_info);
 665   display_info_list.push_back(secondary_info);
 666   display_manager()->OnNativeDisplaysChanged(display_info_list);
 667
 668   EXPECT_EQ(third_id, DisplayController::GetPrimaryDisplayId());
 669   EXPECT_EQ("600x600", GetDisplayForId(third_id).size().ToString());
 670   EXPECT_EQ(secondary_id, ScreenUtil::GetSecondaryDisplay().id());
 671 }
 672
 673 #if defined(OS_WIN)
 674 // TODO(scottmg): RootWindow doesn't get resized on Windows
 675 // Ash. http://crbug.com/247916.
 676 #define MAYBE_TestNativeDisplaysChangedNoInternal \
 677         DISABLED_TestNativeDisplaysChangedNoInternal
 678 #else
 679 #define MAYBE_TestNativeDisplaysChangedNoInternal \
 680         TestNativeDisplaysChangedNoInternal
 681 #endif
 682
 683 TEST_F(DisplayManagerTest, MAYBE_TestNativeDisplaysChangedNoInternal) {
 684   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 685
 686   // Don't change the display info if all displays are disconnected.
 687   std::vector<DisplayInfo> display_info_list;
 688   display_manager()->OnNativeDisplaysChanged(display_info_list);
 689   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 690
 691   // Connect another display which will become primary.
 692   const DisplayInfo external_display_info =
 693       CreateDisplayInfo(10, gfx::Rect(1, 1, 100, 100));
 694   display_info_list.push_back(external_display_info);
 695   display_manager()->OnNativeDisplaysChanged(display_info_list);
 696   EXPECT_EQ(1U, display_manager()->GetNumDisplays());
 697   EXPECT_EQ("1,1 100x100",
 698             GetDisplayInfoForId(10).bounds_in_native().ToString());
 699   EXPECT_EQ("100x100", ash::Shell::GetPrimaryRootWindow()->GetHost()->
 700       GetBounds().size().ToString());
 701 }
 702
 703 #if defined(OS_WIN)
 704 // Tests that rely on the actual host size/location does not work on windows.
 705 #define MAYBE_EnsurePointerInDisplays DISABLED_EnsurePointerInDisplays
 706 #define MAYBE_EnsurePointerInDisplays_2ndOnLeft DISABLED_EnsurePointerInDisplays_2ndOnLeft
 707 #else
 708 #define MAYBE_EnsurePointerInDisplays EnsurePointerInDisplays
 709 #define MAYBE_EnsurePointerInDisplays_2ndOnLeft EnsurePointerInDisplays_2ndOnLeft
 710 #endif
 711
 712 TEST_F(DisplayManagerTest, MAYBE_EnsurePointerInDisplays) {
 713   UpdateDisplay("200x200,300x300");
 714   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 715
 716   aura::Env* env = aura::Env::GetInstance();
 717
 718   ui::test::EventGenerator generator(root_windows[0]);
 719
 720   // Set the initial position.
 721   generator.MoveMouseToInHost(350, 150);
 722   EXPECT_EQ("350,150", env->last_mouse_location().ToString());
 723
 724   // A mouse pointer will stay in the 2nd display.
 725   UpdateDisplay("300x300,200x200");
 726   EXPECT_EQ("450,50", env->last_mouse_location().ToString());
 727
 728   // A mouse pointer will be outside of displays and move to the
 729   // center of 2nd display.
 730   UpdateDisplay("300x300,100x100");
 731   EXPECT_EQ("350,50", env->last_mouse_location().ToString());
 732
 733   // 2nd display was disconnected, and the cursor is
 734   // now in the 1st display.
 735   UpdateDisplay("400x400");
 736   EXPECT_EQ("50,350", env->last_mouse_location().ToString());
 737
 738   // 1st display's resolution has changed, and the mouse pointer is
 739   // now outside. Move the mouse pointer to the center of 1st display.
 740   UpdateDisplay("300x300");
 741   EXPECT_EQ("150,150", env->last_mouse_location().ToString());
 742
 743   // Move the mouse pointer to the bottom of 1st display.
 744   generator.MoveMouseToInHost(150, 290);
 745   EXPECT_EQ("150,290", env->last_mouse_location().ToString());
 746
 747   // The mouse pointer is now on 2nd display.
 748   UpdateDisplay("300x280,200x200");
 749   EXPECT_EQ("450,10", env->last_mouse_location().ToString());
 750 }
 751
 752 TEST_F(DisplayManagerTest, MAYBE_EnsurePointerInDisplays_2ndOnLeft) {
 753   // Set the 2nd display on the left.
 754   DisplayLayoutStore* layout_store =
 755       Shell::GetInstance()->display_manager()->layout_store();
 756   DisplayLayout layout = layout_store->default_display_layout();
 757   layout.position = DisplayLayout::LEFT;
 758   layout_store->SetDefaultDisplayLayout(layout);
 759
 760   UpdateDisplay("200x200,300x300");
 761   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 762
 763   EXPECT_EQ("-300,0 300x300",
 764             ScreenUtil::GetSecondaryDisplay().bounds().ToString());
 765
 766   aura::Env* env = aura::Env::GetInstance();
 767
 768   // Set the initial position.
 769   root_windows[0]->MoveCursorTo(gfx::Point(-150, 250));
 770   EXPECT_EQ("-150,250", env->last_mouse_location().ToString());
 771
 772   // A mouse pointer will stay in 2nd display.
 773   UpdateDisplay("300x300,200x300");
 774   EXPECT_EQ("-50,150", env->last_mouse_location().ToString());
 775
 776   // A mouse pointer will be outside of displays and move to the
 777   // center of 2nd display.
 778   UpdateDisplay("300x300,200x100");
 779   EXPECT_EQ("-100,50", env->last_mouse_location().ToString());
 780
 781   // 2nd display was disconnected. Mouse pointer should move to
 782   // 1st display.
 783   UpdateDisplay("300x300");
 784   EXPECT_EQ("150,150", env->last_mouse_location().ToString());
 785 }
 786
 787 TEST_F(DisplayManagerTest, NativeDisplaysChangedAfterPrimaryChange) {
 788   if (!SupportsMultipleDisplays())
 789     return;
 790
 791   const int64 internal_display_id =
 792       test::DisplayManagerTestApi(display_manager()).
 793       SetFirstDisplayAsInternalDisplay();
 794   const DisplayInfo native_display_info =
 795       CreateDisplayInfo(internal_display_id, gfx::Rect(0, 0, 500, 500));
 796   const DisplayInfo secondary_display_info =
 797       CreateDisplayInfo(10, gfx::Rect(1, 1, 100, 100));
 798
 799   std::vector<DisplayInfo> display_info_list;
 800   display_info_list.push_back(native_display_info);
 801   display_info_list.push_back(secondary_display_info);
 802   display_manager()->OnNativeDisplaysChanged(display_info_list);
 803   EXPECT_EQ(2U, display_manager()->GetNumDisplays());
 804   EXPECT_EQ("0,0 500x500",
 805             GetDisplayForId(internal_display_id).bounds().ToString());
 806   EXPECT_EQ("500,0 100x100", GetDisplayForId(10).bounds().ToString());
 807
 808   ash::Shell::GetInstance()->display_controller()->SetPrimaryDisplay(
 809       GetDisplayForId(secondary_display_info.id()));
 810   EXPECT_EQ("-500,0 500x500",
 811             GetDisplayForId(internal_display_id).bounds().ToString());
 812   EXPECT_EQ("0,0 100x100", GetDisplayForId(10).bounds().ToString());
 813
 814   // OnNativeDisplaysChanged may change the display bounds.  Here makes sure
 815   // nothing changed if the exactly same displays are specified.
 816   display_manager()->OnNativeDisplaysChanged(display_info_list);
 817   EXPECT_EQ("-500,0 500x500",
 818             GetDisplayForId(internal_display_id).bounds().ToString());
 819   EXPECT_EQ("0,0 100x100", GetDisplayForId(10).bounds().ToString());
 820 }
 821
 822 TEST_F(DisplayManagerTest, DontRememberBestResolution) {
 823   int display_id = 1000;
 824   DisplayInfo native_display_info =
 825       CreateDisplayInfo(display_id, gfx::Rect(0, 0, 1000, 500));
 826   std::vector<DisplayMode> display_modes;
 827   display_modes.push_back(
 828       DisplayMode(gfx::Size(1000, 500), 58.0f, false, true));
 829   display_modes.push_back(
 830       DisplayMode(gfx::Size(800, 300), 59.0f, false, false));
 831   display_modes.push_back(
 832       DisplayMode(gfx::Size(400, 500), 60.0f, false, false));
 833
 834   native_display_info.SetDisplayModes(display_modes);
 835
 836   std::vector<DisplayInfo> display_info_list;
 837   display_info_list.push_back(native_display_info);
 838   display_manager()->OnNativeDisplaysChanged(display_info_list);
 839
 840   DisplayMode mode;
 841   DisplayMode expected_mode;
 842   expected_mode.size = gfx::Size(1000, 500);
 843   EXPECT_FALSE(
 844       display_manager()->GetSelectedModeForDisplayId(display_id, &mode));
 845   EXPECT_TRUE(expected_mode.IsEquivalent(
 846       display_manager()->GetActiveModeForDisplayId(display_id)));
 847
 848   // Unsupported resolution.
 849   display_manager()->SetDisplayResolution(display_id, gfx::Size(800, 4000));
 850   EXPECT_FALSE(
 851       display_manager()->GetSelectedModeForDisplayId(display_id, &mode));
 852   EXPECT_TRUE(expected_mode.IsEquivalent(
 853       display_manager()->GetActiveModeForDisplayId(display_id)));
 854
 855   // Supported resolution.
 856   display_manager()->SetDisplayResolution(display_id, gfx::Size(800, 300));
 857   EXPECT_TRUE(
 858       display_manager()->GetSelectedModeForDisplayId(display_id, &mode));
 859   EXPECT_EQ("800x300", mode.size.ToString());
 860   EXPECT_EQ(59.0f, mode.refresh_rate);
 861   EXPECT_FALSE(mode.native);
 862   expected_mode.size = gfx::Size(800, 300);
 863   EXPECT_TRUE(expected_mode.IsEquivalent(
 864       display_manager()->GetActiveModeForDisplayId(display_id)));
 865
 866   // Best resolution.
 867   display_manager()->SetDisplayResolution(display_id, gfx::Size(1000, 500));
 868   EXPECT_TRUE(
 869       display_manager()->GetSelectedModeForDisplayId(display_id, &mode));
 870   EXPECT_EQ("1000x500", mode.size.ToString());
 871   EXPECT_EQ(58.0f, mode.refresh_rate);
 872   EXPECT_TRUE(mode.native);
 873   expected_mode.size = gfx::Size(1000, 500);
 874   EXPECT_TRUE(expected_mode.IsEquivalent(
 875       display_manager()->GetActiveModeForDisplayId(display_id)));
 876 }
 877
 878 TEST_F(DisplayManagerTest, ResolutionFallback) {
 879   int display_id = 1000;
 880   DisplayInfo native_display_info =
 881       CreateDisplayInfo(display_id, gfx::Rect(0, 0, 1000, 500));
 882   std::vector<DisplayMode> display_modes;
 883   display_modes.push_back(
 884       DisplayMode(gfx::Size(1000, 500), 58.0f, false, true));
 885   display_modes.push_back(
 886       DisplayMode(gfx::Size(800, 300), 59.0f, false, false));
 887   display_modes.push_back(
 888       DisplayMode(gfx::Size(400, 500), 60.0f, false, false));
 889
 890   std::vector<DisplayMode> copy = display_modes;
 891   native_display_info.SetDisplayModes(copy);
 892
 893   std::vector<DisplayInfo> display_info_list;
 894   display_info_list.push_back(native_display_info);
 895   display_manager()->OnNativeDisplaysChanged(display_info_list);
 896   {
 897     display_manager()->SetDisplayResolution(display_id, gfx::Size(800, 300));
 898     DisplayInfo new_native_display_info =
 899         CreateDisplayInfo(display_id, gfx::Rect(0, 0, 400, 500));
 900     copy = display_modes;
 901     new_native_display_info.SetDisplayModes(copy);
 902     std::vector<DisplayInfo> new_display_info_list;
 903     new_display_info_list.push_back(new_native_display_info);
 904     display_manager()->OnNativeDisplaysChanged(new_display_info_list);
 905
 906     DisplayMode mode;
 907     EXPECT_TRUE(
 908         display_manager()->GetSelectedModeForDisplayId(display_id, &mode));
 909     EXPECT_EQ("400x500", mode.size.ToString());
 910     EXPECT_EQ(60.0f, mode.refresh_rate);
 911     EXPECT_FALSE(mode.native);
 912   }
 913   {
 914     // Best resolution should find itself on the resolutions list.
 915     display_manager()->SetDisplayResolution(display_id, gfx::Size(800, 300));
 916     DisplayInfo new_native_display_info =
 917         CreateDisplayInfo(display_id, gfx::Rect(0, 0, 1000, 500));
 918     std::vector<DisplayMode> copy = display_modes;
 919     new_native_display_info.SetDisplayModes(copy);
 920     std::vector<DisplayInfo> new_display_info_list;
 921     new_display_info_list.push_back(new_native_display_info);
 922     display_manager()->OnNativeDisplaysChanged(new_display_info_list);
 923
 924     DisplayMode mode;
 925     EXPECT_TRUE(
 926         display_manager()->GetSelectedModeForDisplayId(display_id, &mode));
 927     EXPECT_EQ("1000x500", mode.size.ToString());
 928     EXPECT_EQ(58.0f, mode.refresh_rate);
 929     EXPECT_TRUE(mode.native);
 930   }
 931 }
 932
 933 TEST_F(DisplayManagerTest, Rotate) {
 934   if (!SupportsMultipleDisplays())
 935     return;
 936
 937   UpdateDisplay("100x200/r,300x400/l");
 938   EXPECT_EQ("1,1 100x200",
 939             GetDisplayInfoAt(0).bounds_in_native().ToString());
 940   EXPECT_EQ("200x100",
 941             GetDisplayInfoAt(0).size_in_pixel().ToString());
 942
 943   EXPECT_EQ("1,201 300x400",
 944             GetDisplayInfoAt(1).bounds_in_native().ToString());
 945   EXPECT_EQ("400x300",
 946             GetDisplayInfoAt(1).size_in_pixel().ToString());
 947   reset();
 948   UpdateDisplay("100x200/b,300x400");
 949   EXPECT_EQ("2 0 0", GetCountSummary());
 950   reset();
 951
 952   EXPECT_EQ("1,1 100x200",
 953             GetDisplayInfoAt(0).bounds_in_native().ToString());
 954   EXPECT_EQ("100x200",
 955             GetDisplayInfoAt(0).size_in_pixel().ToString());
 956
 957   EXPECT_EQ("1,201 300x400",
 958             GetDisplayInfoAt(1).bounds_in_native().ToString());
 959   EXPECT_EQ("300x400",
 960             GetDisplayInfoAt(1).size_in_pixel().ToString());
 961
 962   // Just Rotating display will change the bounds on both display.
 963   UpdateDisplay("100x200/l,300x400");
 964   EXPECT_EQ("2 0 0", GetCountSummary());
 965   reset();
 966
 967   // Updating to the same configuration should report no changes.
 968   UpdateDisplay("100x200/l,300x400");
 969   EXPECT_EQ("0 0 0", GetCountSummary());
 970   reset();
 971
 972   // Rotating 180 degrees should report one change.
 973   UpdateDisplay("100x200/r,300x400");
 974   EXPECT_EQ("1 0 0", GetCountSummary());
 975   reset();
 976
 977   UpdateDisplay("200x200");
 978   EXPECT_EQ("1 0 1", GetCountSummary());
 979   reset();
 980
 981   // Rotating 180 degrees should report one change.
 982   UpdateDisplay("200x200/u");
 983   EXPECT_EQ("1 0 0", GetCountSummary());
 984   reset();
 985
 986   UpdateDisplay("200x200/l");
 987   EXPECT_EQ("1 0 0", GetCountSummary());
 988 }
 989
 990 TEST_F(DisplayManagerTest, UIScale) {
 991   DisplayInfo::SetUse125DSFForUIScaling(false);
 992
 993   UpdateDisplay("1280x800");
 994   int64 display_id = Shell::GetScreen()->GetPrimaryDisplay().id();
 995   display_manager()->SetDisplayUIScale(display_id, 1.125f);
 996   EXPECT_EQ(1.0, GetDisplayInfoAt(0).configured_ui_scale());
 997   display_manager()->SetDisplayUIScale(display_id, 0.8f);
 998   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
 999   display_manager()->SetDisplayUIScale(display_id, 0.75f);
1000   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1001   display_manager()->SetDisplayUIScale(display_id, 0.625f);
1002   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1003
1004   test::DisplayManagerTestApi(display_manager())
1005       .SetInternalDisplayId(display_id);
1006
1007   display_manager()->SetDisplayUIScale(display_id, 1.5f);
1008   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1009   display_manager()->SetDisplayUIScale(display_id, 1.25f);
1010   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1011   display_manager()->SetDisplayUIScale(display_id, 1.125f);
1012   EXPECT_EQ(1.125f, GetDisplayInfoAt(0).configured_ui_scale());
1013   display_manager()->SetDisplayUIScale(display_id, 0.8f);
1014   EXPECT_EQ(0.8f, GetDisplayInfoAt(0).configured_ui_scale());
1015   display_manager()->SetDisplayUIScale(display_id, 0.75f);
1016   EXPECT_EQ(0.8f, GetDisplayInfoAt(0).configured_ui_scale());
1017   display_manager()->SetDisplayUIScale(display_id, 0.625f);
1018   EXPECT_EQ(0.625f, GetDisplayInfoAt(0).configured_ui_scale());
1019   display_manager()->SetDisplayUIScale(display_id, 0.6f);
1020   EXPECT_EQ(0.625f, GetDisplayInfoAt(0).configured_ui_scale());
1021   display_manager()->SetDisplayUIScale(display_id, 0.5f);
1022   EXPECT_EQ(0.5f, GetDisplayInfoAt(0).configured_ui_scale());
1023
1024   UpdateDisplay("1366x768");
1025   display_manager()->SetDisplayUIScale(display_id, 1.5f);
1026   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1027   display_manager()->SetDisplayUIScale(display_id, 1.25f);
1028   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1029   display_manager()->SetDisplayUIScale(display_id, 1.125f);
1030   EXPECT_EQ(1.125f, GetDisplayInfoAt(0).configured_ui_scale());
1031   display_manager()->SetDisplayUIScale(display_id, 0.8f);
1032   EXPECT_EQ(1.125f, GetDisplayInfoAt(0).configured_ui_scale());
1033   display_manager()->SetDisplayUIScale(display_id, 0.75f);
1034   EXPECT_EQ(0.75f, GetDisplayInfoAt(0).configured_ui_scale());
1035   display_manager()->SetDisplayUIScale(display_id, 0.6f);
1036   EXPECT_EQ(0.6f, GetDisplayInfoAt(0).configured_ui_scale());
1037   display_manager()->SetDisplayUIScale(display_id, 0.625f);
1038   EXPECT_EQ(0.6f, GetDisplayInfoAt(0).configured_ui_scale());
1039   display_manager()->SetDisplayUIScale(display_id, 0.5f);
1040   EXPECT_EQ(0.5f, GetDisplayInfoAt(0).configured_ui_scale());
1041
1042   UpdateDisplay("1280x850*2");
1043   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1044   display_manager()->SetDisplayUIScale(display_id, 1.5f);
1045   EXPECT_EQ(1.5f, GetDisplayInfoAt(0).configured_ui_scale());
1046   display_manager()->SetDisplayUIScale(display_id, 1.25f);
1047   EXPECT_EQ(1.25f, GetDisplayInfoAt(0).configured_ui_scale());
1048   display_manager()->SetDisplayUIScale(display_id, 1.125f);
1049   EXPECT_EQ(1.125f, GetDisplayInfoAt(0).configured_ui_scale());
1050   display_manager()->SetDisplayUIScale(display_id, 1.0f);
1051   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1052   gfx::Display display = Shell::GetScreen()->GetPrimaryDisplay();
1053   EXPECT_EQ(2.0f, display.device_scale_factor());
1054   EXPECT_EQ("640x425", display.bounds().size().ToString());
1055
1056   display_manager()->SetDisplayUIScale(display_id, 0.8f);
1057   EXPECT_EQ(0.8f, GetDisplayInfoAt(0).configured_ui_scale());
1058   display_manager()->SetDisplayUIScale(display_id, 0.75f);
1059   EXPECT_EQ(0.8f, GetDisplayInfoAt(0).configured_ui_scale());
1060   display_manager()->SetDisplayUIScale(display_id, 0.625f);
1061   EXPECT_EQ(0.625f, GetDisplayInfoAt(0).configured_ui_scale());
1062   display_manager()->SetDisplayUIScale(display_id, 0.6f);
1063   EXPECT_EQ(0.625f, GetDisplayInfoAt(0).configured_ui_scale());
1064   display_manager()->SetDisplayUIScale(display_id, 0.5f);
1065   EXPECT_EQ(0.5f, GetDisplayInfoAt(0).configured_ui_scale());
1066
1067   display_manager()->SetDisplayUIScale(display_id, 2.0f);
1068   EXPECT_EQ(2.0f, GetDisplayInfoAt(0).configured_ui_scale());
1069   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).GetEffectiveUIScale());
1070   display = Shell::GetScreen()->GetPrimaryDisplay();
1071   EXPECT_EQ(1.0f, display.device_scale_factor());
1072   EXPECT_EQ("1280x850", display.bounds().size().ToString());
1073
1074   // 1.25 ui scaling on 1.25 DSF device should use 1.0 DSF
1075   // on screen.
1076   UpdateDisplay("1280x850*1.25");
1077   display_manager()->SetDisplayUIScale(display_id, 1.25f);
1078   EXPECT_EQ(1.25f, GetDisplayInfoAt(0).configured_ui_scale());
1079   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).GetEffectiveUIScale());
1080   display = Shell::GetScreen()->GetPrimaryDisplay();
1081   EXPECT_EQ(1.0f, display.device_scale_factor());
1082   EXPECT_EQ("1280x850", display.bounds().size().ToString());
1083 }
1084
1085 TEST_F(DisplayManagerTest, UIScaleWithDisplayMode) {
1086   int display_id = 1000;
1087
1088   // Setup the display modes with UI-scale.
1089   DisplayInfo native_display_info =
1090       CreateDisplayInfo(display_id, gfx::Rect(0, 0, 1280, 800));
1091   std::vector<DisplayMode> display_modes;
1092   const DisplayMode base_mode(gfx::Size(1280, 800), 60.0f, false, false);
1093   std::vector<DisplayMode> mode_list = CreateInternalDisplayModeList(base_mode);
1094   native_display_info.SetDisplayModes(mode_list);
1095
1096   std::vector<DisplayInfo> display_info_list;
1097   display_info_list.push_back(native_display_info);
1098   display_manager()->OnNativeDisplaysChanged(display_info_list);
1099
1100   DisplayMode expected_mode = base_mode;
1101   EXPECT_TRUE(expected_mode.IsEquivalent(
1102       display_manager()->GetActiveModeForDisplayId(display_id)));
1103
1104   display_manager()->SetDisplayUIScale(display_id, 1.125f);
1105   EXPECT_EQ(1.0, GetDisplayInfoAt(0).configured_ui_scale());
1106   EXPECT_TRUE(expected_mode.IsEquivalent(
1107       display_manager()->GetActiveModeForDisplayId(display_id)));
1108   display_manager()->SetDisplayUIScale(display_id, 0.8f);
1109   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1110   EXPECT_TRUE(expected_mode.IsEquivalent(
1111       display_manager()->GetActiveModeForDisplayId(display_id)));
1112   display_manager()->SetDisplayUIScale(display_id, 0.75f);
1113   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1114   EXPECT_TRUE(expected_mode.IsEquivalent(
1115       display_manager()->GetActiveModeForDisplayId(display_id)));
1116   display_manager()->SetDisplayUIScale(display_id, 0.625f);
1117   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1118   EXPECT_TRUE(expected_mode.IsEquivalent(
1119       display_manager()->GetActiveModeForDisplayId(display_id)));
1120
1121   test::DisplayManagerTestApi(display_manager())
1122       .SetInternalDisplayId(display_id);
1123
1124   display_manager()->SetDisplayUIScale(display_id, 1.5f);
1125   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1126   EXPECT_TRUE(expected_mode.IsEquivalent(
1127       display_manager()->GetActiveModeForDisplayId(display_id)));
1128   display_manager()->SetDisplayUIScale(display_id, 1.25f);
1129   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).configured_ui_scale());
1130   EXPECT_TRUE(expected_mode.IsEquivalent(
1131       display_manager()->GetActiveModeForDisplayId(display_id)));
1132   display_manager()->SetDisplayUIScale(display_id, 1.125f);
1133   EXPECT_EQ(1.125f, GetDisplayInfoAt(0).configured_ui_scale());
1134   expected_mode.ui_scale = 1.125f;
1135   EXPECT_TRUE(expected_mode.IsEquivalent(
1136       display_manager()->GetActiveModeForDisplayId(display_id)));
1137   display_manager()->SetDisplayUIScale(display_id, 0.8f);
1138   EXPECT_EQ(0.8f, GetDisplayInfoAt(0).configured_ui_scale());
1139   expected_mode.ui_scale = 0.8f;
1140   EXPECT_TRUE(expected_mode.IsEquivalent(
1141       display_manager()->GetActiveModeForDisplayId(display_id)));
1142   display_manager()->SetDisplayUIScale(display_id, 0.75f);
1143   EXPECT_EQ(0.8f, GetDisplayInfoAt(0).configured_ui_scale());
1144   EXPECT_TRUE(expected_mode.IsEquivalent(
1145       display_manager()->GetActiveModeForDisplayId(display_id)));
1146   display_manager()->SetDisplayUIScale(display_id, 0.625f);
1147   EXPECT_EQ(0.625f, GetDisplayInfoAt(0).configured_ui_scale());
1148   expected_mode.ui_scale = 0.625f;
1149   EXPECT_TRUE(expected_mode.IsEquivalent(
1150       display_manager()->GetActiveModeForDisplayId(display_id)));
1151   display_manager()->SetDisplayUIScale(display_id, 0.6f);
1152   EXPECT_EQ(0.625f, GetDisplayInfoAt(0).configured_ui_scale());
1153   EXPECT_TRUE(expected_mode.IsEquivalent(
1154       display_manager()->GetActiveModeForDisplayId(display_id)));
1155   display_manager()->SetDisplayUIScale(display_id, 0.5f);
1156   EXPECT_EQ(0.5f, GetDisplayInfoAt(0).configured_ui_scale());
1157   expected_mode.ui_scale = 0.5f;
1158   EXPECT_TRUE(expected_mode.IsEquivalent(
1159       display_manager()->GetActiveModeForDisplayId(display_id)));
1160 }
1161
1162 TEST_F(DisplayManagerTest, Use125DSFRorUIScaling) {
1163   DisplayInfo::SetUse125DSFForUIScaling(true);
1164
1165   int64 display_id = Shell::GetScreen()->GetPrimaryDisplay().id();
1166   test::DisplayManagerTestApi(display_manager())
1167       .SetInternalDisplayId(display_id);
1168
1169   UpdateDisplay("1920x1080*1.25");
1170   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).GetEffectiveDeviceScaleFactor());
1171   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).GetEffectiveUIScale());
1172
1173   display_manager()->SetDisplayUIScale(display_id, 0.8f);
1174   EXPECT_EQ(1.25f, GetDisplayInfoAt(0).GetEffectiveDeviceScaleFactor());
1175   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).GetEffectiveUIScale());
1176   EXPECT_EQ("1536x864", GetDisplayForId(display_id).size().ToString());
1177
1178   display_manager()->SetDisplayUIScale(display_id, 0.5f);
1179   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).GetEffectiveDeviceScaleFactor());
1180   EXPECT_EQ(0.5f, GetDisplayInfoAt(0).GetEffectiveUIScale());
1181   EXPECT_EQ("960x540", GetDisplayForId(display_id).size().ToString());
1182
1183   display_manager()->SetDisplayUIScale(display_id, 1.25f);
1184   EXPECT_EQ(1.0f, GetDisplayInfoAt(0).GetEffectiveDeviceScaleFactor());
1185   EXPECT_EQ(1.25f, GetDisplayInfoAt(0).GetEffectiveUIScale());
1186   EXPECT_EQ("2400x1350", GetDisplayForId(display_id).size().ToString());
1187
1188   DisplayInfo::SetUse125DSFForUIScaling(false);
1189 }
1190
1191 #if defined(OS_WIN)
1192 // TODO(scottmg): RootWindow doesn't get resized on Windows
1193 // Ash. http://crbug.com/247916.
1194 #define MAYBE_UpdateMouseCursorAfterRotateZoom DISABLED_UpdateMouseCursorAfterRotateZoom
1195 #else
1196 #define MAYBE_UpdateMouseCursorAfterRotateZoom UpdateMouseCursorAfterRotateZoom
1197 #endif
1198
1199 TEST_F(DisplayManagerTest, MAYBE_UpdateMouseCursorAfterRotateZoom) {
1200   // Make sure just rotating will not change native location.
1201   UpdateDisplay("300x200,200x150");
1202   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
1203   aura::Env* env = aura::Env::GetInstance();
1204
1205   ui::test::EventGenerator generator1(root_windows[0]);
1206   ui::test::EventGenerator generator2(root_windows[1]);
1207
1208   // Test on 1st display.
1209   generator1.MoveMouseToInHost(150, 50);
1210   EXPECT_EQ("150,50", env->last_mouse_location().ToString());
1211   UpdateDisplay("300x200/r,200x150");
1212   EXPECT_EQ("50,149", env->last_mouse_location().ToString());
1213
1214   // Test on 2nd display.
1215   generator2.MoveMouseToInHost(50, 100);
1216   EXPECT_EQ("250,100", env->last_mouse_location().ToString());
1217   UpdateDisplay("300x200/r,200x150/l");
1218   EXPECT_EQ("249,50", env->last_mouse_location().ToString());
1219
1220   // The native location is now outside, so move to the center
1221   // of closest display.
1222   UpdateDisplay("300x200/r,100x50/l");
1223   EXPECT_EQ("225,50", env->last_mouse_location().ToString());
1224
1225   // Make sure just zooming will not change native location.
1226   UpdateDisplay("600x400*2,400x300");
1227
1228   // Test on 1st display.
1229   generator1.MoveMouseToInHost(200, 300);
1230   EXPECT_EQ("100,150", env->last_mouse_location().ToString());
1231   UpdateDisplay("600x400*2@1.5,400x300");
1232   EXPECT_EQ("150,225", env->last_mouse_location().ToString());
1233
1234   // Test on 2nd display.
1235   UpdateDisplay("600x400,400x300*2");
1236   generator2.MoveMouseToInHost(200, 250);
1237   EXPECT_EQ("700,125", env->last_mouse_location().ToString());
1238   UpdateDisplay("600x400,400x300*2@1.5");
1239   EXPECT_EQ("750,187", env->last_mouse_location().ToString());
1240
1241   // The native location is now outside, so move to the
1242   // center of closest display.
1243   UpdateDisplay("600x400,400x200*2@1.5");
1244   EXPECT_EQ("750,75", env->last_mouse_location().ToString());
1245 }
1246
1247 class TestDisplayObserver : public gfx::DisplayObserver {
1248  public:
1249   TestDisplayObserver() : changed_(false) {}
1250   ~TestDisplayObserver() override {}
1251
1252   // gfx::DisplayObserver overrides:
1253   void OnDisplayMetricsChanged(const gfx::Display&, uint32_t) override {}
1254   void OnDisplayAdded(const gfx::Display& new_display) override {
1255     // Mirror window should already be delete before restoring
1256     // the external display.
1257     EXPECT_FALSE(test_api.GetHost());
1258     changed_ = true;
1259   }
1260   void OnDisplayRemoved(const gfx::Display& old_display) override {
1261     // Mirror window should not be created until the external display
1262     // is removed.
1263     EXPECT_FALSE(test_api.GetHost());
1264     changed_ = true;
1265   }
1266
1267   bool changed_and_reset() {
1268     bool changed = changed_;
1269     changed_ = false;
1270     return changed;
1271   }
1272
1273  private:
1274   test::MirrorWindowTestApi test_api;
1275   bool changed_;
1276
1277   DISALLOW_COPY_AND_ASSIGN(TestDisplayObserver);
1278 };
1279
1280 TEST_F(DisplayManagerTest, SoftwareMirroring) {
1281   if (!SupportsMultipleDisplays())
1282     return;
1283
1284   UpdateDisplay("300x400,400x500");
1285
1286   test::MirrorWindowTestApi test_api;
1287   EXPECT_EQ(NULL, test_api.GetHost());
1288
1289   TestDisplayObserver display_observer;
1290   Shell::GetScreen()->AddObserver(&display_observer);
1291
1292   DisplayManager* display_manager = Shell::GetInstance()->display_manager();
1293   display_manager->SetSecondDisplayMode(DisplayManager::MIRRORING);
1294   display_manager->UpdateDisplays();
1295   RunAllPendingInMessageLoop();
1296   EXPECT_TRUE(display_observer.changed_and_reset());
1297   EXPECT_EQ(1U, display_manager->GetNumDisplays());
1298   EXPECT_EQ("0,0 300x400",
1299             Shell::GetScreen()->GetPrimaryDisplay().bounds().ToString());
1300   EXPECT_EQ("400x500", test_api.GetHost()->GetBounds().size().ToString());
1301   EXPECT_EQ("300x400",
1302             test_api.GetHost()->window()->bounds().size().ToString());
1303   EXPECT_TRUE(display_manager->IsMirrored());
1304
1305   display_manager->SetMirrorMode(false);
1306   EXPECT_TRUE(display_observer.changed_and_reset());
1307   EXPECT_EQ(NULL, test_api.GetHost());
1308   EXPECT_EQ(2U, display_manager->GetNumDisplays());
1309   EXPECT_FALSE(display_manager->IsMirrored());
1310
1311   // Make sure the mirror window has the pixel size of the
1312   // source display.
1313   display_manager->SetMirrorMode(true);
1314   EXPECT_TRUE(display_observer.changed_and_reset());
1315
1316   UpdateDisplay("300x400@0.5,400x500");
1317   EXPECT_FALSE(display_observer.changed_and_reset());
1318   EXPECT_EQ("300x400",
1319             test_api.GetHost()->window()->bounds().size().ToString());
1320
1321   UpdateDisplay("310x410*2,400x500");
1322   EXPECT_FALSE(display_observer.changed_and_reset());
1323   EXPECT_EQ("310x410",
1324             test_api.GetHost()->window()->bounds().size().ToString());
1325
1326   UpdateDisplay("320x420/r,400x500");
1327   EXPECT_FALSE(display_observer.changed_and_reset());
1328   EXPECT_EQ("320x420",
1329             test_api.GetHost()->window()->bounds().size().ToString());
1330
1331   UpdateDisplay("330x440/r,400x500");
1332   EXPECT_FALSE(display_observer.changed_and_reset());
1333   EXPECT_EQ("330x440",
1334             test_api.GetHost()->window()->bounds().size().ToString());
1335
1336   // Overscan insets are ignored.
1337   UpdateDisplay("400x600/o,600x800/o");
1338   EXPECT_FALSE(display_observer.changed_and_reset());
1339   EXPECT_EQ("400x600",
1340             test_api.GetHost()->window()->bounds().size().ToString());
1341
1342   Shell::GetScreen()->RemoveObserver(&display_observer);
1343 }
1344
1345 #if defined(OS_CHROMEOS)
1346 // Make sure this does not cause any crashes. See http://crbug.com/412910
1347 // This test is limited to OS_CHROMEOS because CursorCompositingEnabled is only
1348 // for ChromeOS.
1349 TEST_F(DisplayManagerTest, SoftwareMirroringWithCompositingCursor) {
1350   if (!SupportsMultipleDisplays())
1351     return;
1352
1353   UpdateDisplay("300x400,400x500");
1354
1355   test::MirrorWindowTestApi test_api;
1356   EXPECT_EQ(NULL, test_api.GetHost());
1357
1358   DisplayManager* display_manager = Shell::GetInstance()->display_manager();
1359   DisplayInfo secondary_info = display_manager->GetDisplayInfo(
1360       ScreenUtil::GetSecondaryDisplay().id());
1361
1362   display_manager->SetSoftwareMirroring(true);
1363   display_manager->UpdateDisplays();
1364
1365   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
1366   EXPECT_FALSE(root_windows[0]->Contains(test_api.GetCursorWindow()));
1367
1368   Shell::GetInstance()->SetCursorCompositingEnabled(true);
1369
1370   EXPECT_TRUE(root_windows[0]->Contains(test_api.GetCursorWindow()));
1371
1372   // Removes the first display and keeps the second one.
1373   display_manager->SetSoftwareMirroring(false);
1374   std::vector<DisplayInfo> new_info_list;
1375   new_info_list.push_back(secondary_info);
1376   display_manager->OnNativeDisplaysChanged(new_info_list);
1377
1378   root_windows = Shell::GetAllRootWindows();
1379   EXPECT_TRUE(root_windows[0]->Contains(test_api.GetCursorWindow()));
1380
1381   Shell::GetInstance()->SetCursorCompositingEnabled(false);
1382 }
1383 #endif  // OS_CHROMEOS
1384
1385 TEST_F(DisplayManagerTest, MirroredLayout) {
1386   if (!SupportsMultipleDisplays())
1387     return;
1388
1389   DisplayManager* display_manager = Shell::GetInstance()->display_manager();
1390   UpdateDisplay("500x500,400x400");
1391   EXPECT_FALSE(display_manager->GetCurrentDisplayLayout().mirrored);
1392   EXPECT_EQ(2, Shell::GetScreen()->GetNumDisplays());
1393   EXPECT_EQ(2U, display_manager->num_connected_displays());
1394
1395   UpdateDisplay("1+0-500x500,1+0-500x500");
1396   EXPECT_TRUE(display_manager->GetCurrentDisplayLayout().mirrored);
1397   EXPECT_EQ(1, Shell::GetScreen()->GetNumDisplays());
1398   EXPECT_EQ(2U, display_manager->num_connected_displays());
1399
1400   UpdateDisplay("500x500,500x500");
1401   EXPECT_FALSE(display_manager->GetCurrentDisplayLayout().mirrored);
1402   EXPECT_EQ(2, Shell::GetScreen()->GetNumDisplays());
1403   EXPECT_EQ(2U, display_manager->num_connected_displays());
1404 }
1405
1406 TEST_F(DisplayManagerTest, InvertLayout) {
1407   EXPECT_EQ("left, 0",
1408             DisplayLayout(DisplayLayout::RIGHT, 0).Invert().ToString());
1409   EXPECT_EQ("left, -100",
1410             DisplayLayout(DisplayLayout::RIGHT, 100).Invert().ToString());
1411   EXPECT_EQ("left, 50",
1412             DisplayLayout(DisplayLayout::RIGHT, -50).Invert().ToString());
1413
1414   EXPECT_EQ("right, 0",
1415             DisplayLayout(DisplayLayout::LEFT, 0).Invert().ToString());
1416   EXPECT_EQ("right, -90",
1417             DisplayLayout(DisplayLayout::LEFT, 90).Invert().ToString());
1418   EXPECT_EQ("right, 60",
1419             DisplayLayout(DisplayLayout::LEFT, -60).Invert().ToString());
1420
1421   EXPECT_EQ("bottom, 0",
1422             DisplayLayout(DisplayLayout::TOP, 0).Invert().ToString());
1423   EXPECT_EQ("bottom, -80",
1424             DisplayLayout(DisplayLayout::TOP, 80).Invert().ToString());
1425   EXPECT_EQ("bottom, 70",
1426             DisplayLayout(DisplayLayout::TOP, -70).Invert().ToString());
1427
1428   EXPECT_EQ("top, 0",
1429             DisplayLayout(DisplayLayout::BOTTOM, 0).Invert().ToString());
1430   EXPECT_EQ("top, -70",
1431             DisplayLayout(DisplayLayout::BOTTOM, 70).Invert().ToString());
1432   EXPECT_EQ("top, 80",
1433             DisplayLayout(DisplayLayout::BOTTOM, -80).Invert().ToString());
1434 }
1435
1436 TEST_F(DisplayManagerTest, NotifyPrimaryChange) {
1437   if (!SupportsMultipleDisplays())
1438     return;
1439   UpdateDisplay("500x500,500x500");
1440   ash::Shell::GetInstance()->display_controller()->SwapPrimaryDisplay();
1441   reset();
1442   UpdateDisplay("500x500");
1443   EXPECT_FALSE(changed_metrics() & gfx::DisplayObserver::DISPLAY_METRIC_BOUNDS);
1444   EXPECT_FALSE(changed_metrics() &
1445                gfx::DisplayObserver::DISPLAY_METRIC_WORK_AREA);
1446   EXPECT_TRUE(changed_metrics() &
1447               gfx::DisplayObserver::DISPLAY_METRIC_PRIMARY);
1448
1449   UpdateDisplay("500x500,500x500");
1450   ash::Shell::GetInstance()->display_controller()->SwapPrimaryDisplay();
1451   reset();
1452   UpdateDisplay("500x400");
1453   EXPECT_TRUE(changed_metrics() & gfx::DisplayObserver::DISPLAY_METRIC_BOUNDS);
1454   EXPECT_TRUE(changed_metrics() &
1455               gfx::DisplayObserver::DISPLAY_METRIC_WORK_AREA);
1456   EXPECT_TRUE(changed_metrics() &
1457               gfx::DisplayObserver::DISPLAY_METRIC_PRIMARY);
1458 }
1459
1460 TEST_F(DisplayManagerTest, NotifyPrimaryChangeUndock) {
1461   if (!SupportsMultipleDisplays())
1462     return;
1463   // Assume the default display is an external display, and
1464   // emulates undocking by switching to another display.
1465   DisplayInfo another_display_info =
1466       CreateDisplayInfo(1, gfx::Rect(0, 0, 1280, 800));
1467   std::vector<DisplayInfo> info_list;
1468   info_list.push_back(another_display_info);
1469   reset();
1470   display_manager()->OnNativeDisplaysChanged(info_list);
1471   EXPECT_TRUE(changed_metrics() & gfx::DisplayObserver::DISPLAY_METRIC_BOUNDS);
1472   EXPECT_TRUE(changed_metrics() &
1473               gfx::DisplayObserver::DISPLAY_METRIC_WORK_AREA);
1474   EXPECT_TRUE(changed_metrics() &
1475               gfx::DisplayObserver::DISPLAY_METRIC_PRIMARY);
1476 }
1477
1478 #if defined(OS_WIN)
1479 // TODO(scottmg): RootWindow doesn't get resized on Windows
1480 // Ash. http://crbug.com/247916.
1481 #define MAYBE_UpdateDisplayWithHostOrigin DISABLED_UpdateDisplayWithHostOrigin
1482 #else
1483 #define MAYBE_UpdateDisplayWithHostOrigin UpdateDisplayWithHostOrigin
1484 #endif
1485
1486 TEST_F(DisplayManagerTest, MAYBE_UpdateDisplayWithHostOrigin) {
1487   UpdateDisplay("100x200,300x400");
1488   ASSERT_EQ(2, Shell::GetScreen()->GetNumDisplays());
1489   aura::Window::Windows root_windows =
1490       Shell::GetInstance()->GetAllRootWindows();
1491   ASSERT_EQ(2U, root_windows.size());
1492   aura::WindowTreeHost* host0 = root_windows[0]->GetHost();
1493   aura::WindowTreeHost* host1 = root_windows[1]->GetHost();
1494
1495   EXPECT_EQ("1,1", host0->GetBounds().origin().ToString());
1496   EXPECT_EQ("100x200", host0->GetBounds().size().ToString());
1497   // UpdateDisplay set the origin if it's not set.
1498   EXPECT_NE("1,1", host1->GetBounds().origin().ToString());
1499   EXPECT_EQ("300x400", host1->GetBounds().size().ToString());
1500
1501   UpdateDisplay("100x200,200+300-300x400");
1502   ASSERT_EQ(2, Shell::GetScreen()->GetNumDisplays());
1503   EXPECT_EQ("0,0", host0->GetBounds().origin().ToString());
1504   EXPECT_EQ("100x200", host0->GetBounds().size().ToString());
1505   EXPECT_EQ("200,300", host1->GetBounds().origin().ToString());
1506   EXPECT_EQ("300x400", host1->GetBounds().size().ToString());
1507
1508   UpdateDisplay("400+500-200x300,300x400");
1509   ASSERT_EQ(2, Shell::GetScreen()->GetNumDisplays());
1510   EXPECT_EQ("400,500", host0->GetBounds().origin().ToString());
1511   EXPECT_EQ("200x300", host0->GetBounds().size().ToString());
1512   EXPECT_EQ("0,0", host1->GetBounds().origin().ToString());
1513   EXPECT_EQ("300x400", host1->GetBounds().size().ToString());
1514
1515   UpdateDisplay("100+200-100x200,300+500-200x300");
1516   ASSERT_EQ(2, Shell::GetScreen()->GetNumDisplays());
1517   EXPECT_EQ("100,200", host0->GetBounds().origin().ToString());
1518   EXPECT_EQ("100x200", host0->GetBounds().size().ToString());
1519   EXPECT_EQ("300,500", host1->GetBounds().origin().ToString());
1520   EXPECT_EQ("200x300", host1->GetBounds().size().ToString());
1521 }
1522
1523 class ScreenShutdownTest : public test::AshTestBase {
1524  public:
1525   ScreenShutdownTest() {
1526   }
1527   ~ScreenShutdownTest() override {}
1528
1529   void TearDown() override {
1530     gfx::Screen* orig_screen =
1531         gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_ALTERNATE);
1532     AshTestBase::TearDown();
1533     if (!SupportsMultipleDisplays())
1534       return;
1535     gfx::Screen* screen =
1536         gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_ALTERNATE);
1537     EXPECT_NE(orig_screen, screen);
1538     EXPECT_EQ(2, screen->GetNumDisplays());
1539     EXPECT_EQ("500x300", screen->GetPrimaryDisplay().size().ToString());
1540     std::vector<gfx::Display> all = screen->GetAllDisplays();
1541     EXPECT_EQ("500x300", all[0].size().ToString());
1542     EXPECT_EQ("800x400", all[1].size().ToString());
1543   }
1544
1545  private:
1546   DISALLOW_COPY_AND_ASSIGN(ScreenShutdownTest);
1547 };
1548
1549 TEST_F(ScreenShutdownTest, ScreenAfterShutdown) {
1550   if (!SupportsMultipleDisplays())
1551     return;
1552   UpdateDisplay("500x300,800x400");
1553 }
1554
1555
1556 #if defined(OS_CHROMEOS)
1557 namespace {
1558
1559 // A helper class that sets the display configuration and starts ash.
1560 // This is to make sure the font configuration happens during ash
1561 // initialization process.
1562 class FontTestHelper : public test::AshTestBase {
1563  public:
1564   enum DisplayType {
1565     INTERNAL,
1566     EXTERNAL
1567   };
1568
1569   FontTestHelper(float scale, DisplayType display_type) {
1570     gfx::ClearFontRenderParamsCacheForTest();
1571     base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
1572     if (display_type == INTERNAL)
1573       command_line->AppendSwitch(switches::kAshUseFirstDisplayAsInternal);
1574     command_line->AppendSwitchASCII(switches::kAshHostWindowBounds,
1575                                     StringPrintf("1000x800*%f", scale));
1576     SetUp();
1577   }
1578
1579   virtual ~FontTestHelper() {
1580     TearDown();
1581   }
1582
1583   // test::AshTestBase:
1584   virtual void TestBody() override {
1585     NOTREACHED();
1586   }
1587
1588  private:
1589   DISALLOW_COPY_AND_ASSIGN(FontTestHelper);
1590 };
1591
1592
1593 bool IsTextSubpixelPositioningEnabled() {
1594   gfx::FontRenderParams params =
1595       gfx::GetFontRenderParams(gfx::FontRenderParamsQuery(false), NULL);
1596   return params.subpixel_positioning;
1597 }
1598
1599 gfx::FontRenderParams::Hinting GetFontHintingParams() {
1600   gfx::FontRenderParams params =
1601       gfx::GetFontRenderParams(gfx::FontRenderParamsQuery(false), NULL);
1602   return params.hinting;
1603 }
1604
1605 }  // namespace
1606
1607 typedef testing::Test DisplayManagerFontTest;
1608
1609 TEST_F(DisplayManagerFontTest, TextSubpixelPositioningWithDsf100Internal) {
1610   FontTestHelper helper(1.0f, FontTestHelper::INTERNAL);
1611   ASSERT_DOUBLE_EQ(
1612       1.0f, Shell::GetScreen()->GetPrimaryDisplay().device_scale_factor());
1613   EXPECT_FALSE(IsTextSubpixelPositioningEnabled());
1614   EXPECT_NE(gfx::FontRenderParams::HINTING_NONE, GetFontHintingParams());
1615 }
1616
1617 TEST_F(DisplayManagerFontTest, TextSubpixelPositioningWithDsf125Internal) {
1618   FontTestHelper helper(1.25f, FontTestHelper::INTERNAL);
1619   ASSERT_DOUBLE_EQ(
1620       1.25f, Shell::GetScreen()->GetPrimaryDisplay().device_scale_factor());
1621   EXPECT_TRUE(IsTextSubpixelPositioningEnabled());
1622   EXPECT_EQ(gfx::FontRenderParams::HINTING_NONE, GetFontHintingParams());
1623 }
1624
1625 TEST_F(DisplayManagerFontTest, TextSubpixelPositioningWithDsf200Internal) {
1626   FontTestHelper helper(2.0f, FontTestHelper::INTERNAL);
1627   ASSERT_DOUBLE_EQ(
1628       2.0f, Shell::GetScreen()->GetPrimaryDisplay().device_scale_factor());
1629   EXPECT_TRUE(IsTextSubpixelPositioningEnabled());
1630   EXPECT_EQ(gfx::FontRenderParams::HINTING_NONE, GetFontHintingParams());
1631
1632   Shell::GetInstance()->display_manager()->SetDisplayUIScale(
1633       Shell::GetScreen()->GetPrimaryDisplay().id(), 2.0f);
1634
1635   ASSERT_DOUBLE_EQ(
1636       1.0f, Shell::GetScreen()->GetPrimaryDisplay().device_scale_factor());
1637   EXPECT_FALSE(IsTextSubpixelPositioningEnabled());
1638   EXPECT_NE(gfx::FontRenderParams::HINTING_NONE, GetFontHintingParams());
1639 }
1640
1641 TEST_F(DisplayManagerFontTest, TextSubpixelPositioningWithDsf100External) {
1642   FontTestHelper helper(1.0f, FontTestHelper::EXTERNAL);
1643   ASSERT_DOUBLE_EQ(
1644       1.0f, Shell::GetScreen()->GetPrimaryDisplay().device_scale_factor());
1645   EXPECT_FALSE(IsTextSubpixelPositioningEnabled());
1646   EXPECT_NE(gfx::FontRenderParams::HINTING_NONE, GetFontHintingParams());
1647 }
1648
1649 TEST_F(DisplayManagerFontTest, TextSubpixelPositioningWithDsf125External) {
1650   FontTestHelper helper(1.25f, FontTestHelper::EXTERNAL);
1651   ASSERT_DOUBLE_EQ(
1652       1.25f, Shell::GetScreen()->GetPrimaryDisplay().device_scale_factor());
1653   EXPECT_FALSE(IsTextSubpixelPositioningEnabled());
1654   EXPECT_NE(gfx::FontRenderParams::HINTING_NONE, GetFontHintingParams());
1655 }
1656
1657 TEST_F(DisplayManagerFontTest, TextSubpixelPositioningWithDsf200External) {
1658   FontTestHelper helper(2.0f, FontTestHelper::EXTERNAL);
1659   ASSERT_DOUBLE_EQ(
1660       2.0f, Shell::GetScreen()->GetPrimaryDisplay().device_scale_factor());
1661   EXPECT_FALSE(IsTextSubpixelPositioningEnabled());
1662   EXPECT_NE(gfx::FontRenderParams::HINTING_NONE, GetFontHintingParams());
1663 }
1664
1665 TEST_F(DisplayManagerFontTest,
1666        TextSubpixelPositioningWithDsf125InternalWithScaling) {
1667   DisplayInfo::SetUse125DSFForUIScaling(true);
1668   FontTestHelper helper(1.25f, FontTestHelper::INTERNAL);
1669   ASSERT_DOUBLE_EQ(
1670       1.0f, Shell::GetScreen()->GetPrimaryDisplay().device_scale_factor());
1671   EXPECT_FALSE(IsTextSubpixelPositioningEnabled());
1672   EXPECT_NE(gfx::FontRenderParams::HINTING_NONE, GetFontHintingParams());
1673
1674   Shell::GetInstance()->display_manager()->SetDisplayUIScale(
1675       Shell::GetScreen()->GetPrimaryDisplay().id(), 0.8f);
1676
1677   ASSERT_DOUBLE_EQ(
1678       1.25f, Shell::GetScreen()->GetPrimaryDisplay().device_scale_factor());
1679   EXPECT_TRUE(IsTextSubpixelPositioningEnabled());
1680   EXPECT_EQ(gfx::FontRenderParams::HINTING_NONE, GetFontHintingParams());
1681
1682   DisplayInfo::SetUse125DSFForUIScaling(false);
1683 }
1684
1685 #endif  // OS_CHROMEOS
1686
1687 }  // namespace ash