ash/wm/drag_window_resizer_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/wm/drag_window_resizer.h"
   6
   7 #include "ash/display/mouse_cursor_event_filter.h"
   8 #include "ash/root_window_controller.h"
   9 #include "ash/shelf/shelf_layout_manager.h"
  10 #include "ash/shell.h"
  11 #include "ash/shell_window_ids.h"
  12 #include "ash/test/ash_test_base.h"
  13 #include "ash/test/cursor_manager_test_api.h"
  14 #include "ash/test/display_manager_test_api.h"
  15 #include "ash/wm/drag_window_controller.h"
  16 #include "ash/wm/window_util.h"
  17 #include "base/strings/string_number_conversions.h"
  18 #include "base/strings/stringprintf.h"
  19 #include "ui/aura/client/aura_constants.h"
  20 #include "ui/aura/env.h"
  21 #include "ui/aura/test/test_window_delegate.h"
  22 #include "ui/base/hit_test.h"
  23 #include "ui/base/ui_base_types.h"
  24 #include "ui/compositor/layer_tree_owner.h"
  25 #include "ui/gfx/geometry/insets.h"
  26 #include "ui/views/widget/widget.h"
  27 #include "ui/wm/core/window_util.h"
  28
  29 namespace ash {
  30 namespace {
  31
  32 const int kRootHeight = 600;
  33
  34 }  // namespace
  35
  36 class DragWindowResizerTest : public test::AshTestBase {
  37  public:
  38   DragWindowResizerTest() {}
  39   ~DragWindowResizerTest() override {}
  40
  41   void SetUp() override {
  42     AshTestBase::SetUp();
  43     UpdateDisplay(base::StringPrintf("800x%d", kRootHeight));
  44
  45     aura::Window* root = Shell::GetPrimaryRootWindow();
  46     gfx::Rect root_bounds(root->bounds());
  47     EXPECT_EQ(kRootHeight, root_bounds.height());
  48     EXPECT_EQ(800, root_bounds.width());
  49     Shell::GetInstance()->SetDisplayWorkAreaInsets(root, gfx::Insets());
  50     window_.reset(new aura::Window(&delegate_));
  51     window_->SetType(ui::wm::WINDOW_TYPE_NORMAL);
  52     window_->Init(ui::LAYER_NOT_DRAWN);
  53     ParentWindowInPrimaryRootWindow(window_.get());
  54     window_->set_id(1);
  55
  56     always_on_top_window_.reset(new aura::Window(&delegate2_));
  57     always_on_top_window_->SetType(ui::wm::WINDOW_TYPE_NORMAL);
  58     always_on_top_window_->SetProperty(aura::client::kAlwaysOnTopKey, true);
  59     always_on_top_window_->Init(ui::LAYER_NOT_DRAWN);
  60     ParentWindowInPrimaryRootWindow(always_on_top_window_.get());
  61     always_on_top_window_->set_id(2);
  62
  63     system_modal_window_.reset(new aura::Window(&delegate3_));
  64     system_modal_window_->SetType(ui::wm::WINDOW_TYPE_NORMAL);
  65     system_modal_window_->SetProperty(aura::client::kModalKey,
  66                                       ui::MODAL_TYPE_SYSTEM);
  67     system_modal_window_->Init(ui::LAYER_NOT_DRAWN);
  68     ParentWindowInPrimaryRootWindow(system_modal_window_.get());
  69     system_modal_window_->set_id(3);
  70
  71     transient_child_ = new aura::Window(&delegate4_);
  72     transient_child_->SetType(ui::wm::WINDOW_TYPE_NORMAL);
  73     transient_child_->Init(ui::LAYER_NOT_DRAWN);
  74     ParentWindowInPrimaryRootWindow(transient_child_);
  75     transient_child_->set_id(4);
  76
  77     transient_parent_.reset(new aura::Window(&delegate5_));
  78     transient_parent_->SetType(ui::wm::WINDOW_TYPE_NORMAL);
  79     transient_parent_->Init(ui::LAYER_NOT_DRAWN);
  80     ParentWindowInPrimaryRootWindow(transient_parent_.get());
  81     ::wm::AddTransientChild(transient_parent_.get(), transient_child_);
  82     transient_parent_->set_id(5);
  83
  84     panel_window_.reset(new aura::Window(&delegate6_));
  85     panel_window_->SetType(ui::wm::WINDOW_TYPE_PANEL);
  86     panel_window_->Init(ui::LAYER_NOT_DRAWN);
  87     ParentWindowInPrimaryRootWindow(panel_window_.get());
  88   }
  89
  90   void TearDown() override {
  91     window_.reset();
  92     always_on_top_window_.reset();
  93     system_modal_window_.reset();
  94     transient_parent_.reset();
  95     panel_window_.reset();
  96     AshTestBase::TearDown();
  97   }
  98
  99  protected:
 100   gfx::Point CalculateDragPoint(const WindowResizer& resizer,
 101                                 int delta_x,
 102                                 int delta_y) const {
 103     gfx::Point location = resizer.GetInitialLocation();
 104     location.set_x(location.x() + delta_x);
 105     location.set_y(location.y() + delta_y);
 106     return location;
 107   }
 108
 109   ShelfLayoutManager* shelf_layout_manager() {
 110     return Shell::GetPrimaryRootWindowController()->GetShelfLayoutManager();
 111   }
 112
 113   static WindowResizer* CreateDragWindowResizer(
 114       aura::Window* window,
 115       const gfx::Point& point_in_parent,
 116       int window_component) {
 117     return CreateWindowResizer(
 118         window,
 119         point_in_parent,
 120         window_component,
 121         aura::client::WINDOW_MOVE_SOURCE_MOUSE).release();
 122   }
 123
 124   bool TestIfMouseWarpsAt(const gfx::Point& point_in_screen) {
 125     return test::DisplayManagerTestApi::TestIfMouseWarpsAt(GetEventGenerator(),
 126                                                            point_in_screen);
 127   }
 128
 129   aura::test::TestWindowDelegate delegate_;
 130   aura::test::TestWindowDelegate delegate2_;
 131   aura::test::TestWindowDelegate delegate3_;
 132   aura::test::TestWindowDelegate delegate4_;
 133   aura::test::TestWindowDelegate delegate5_;
 134   aura::test::TestWindowDelegate delegate6_;
 135
 136   scoped_ptr<aura::Window> window_;
 137   scoped_ptr<aura::Window> always_on_top_window_;
 138   scoped_ptr<aura::Window> system_modal_window_;
 139   scoped_ptr<aura::Window> panel_window_;
 140   aura::Window* transient_child_;
 141   scoped_ptr<aura::Window> transient_parent_;
 142
 143  private:
 144   DISALLOW_COPY_AND_ASSIGN(DragWindowResizerTest);
 145 };
 146
 147 // Verifies a window can be moved from the primary display to another.
 148 TEST_F(DragWindowResizerTest, WindowDragWithMultiDisplays) {
 149   if (!SupportsMultipleDisplays())
 150     return;
 151
 152   // The secondary display is logically on the right, but on the system (e.g. X)
 153   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
 154   UpdateDisplay("800x600,400x300");
 155   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 156   ASSERT_EQ(2U, root_windows.size());
 157
 158   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 159                              Shell::GetScreen()->GetPrimaryDisplay());
 160   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 161   {
 162     // Grab (0, 0) of the window.
 163     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 164         window_.get(), gfx::Point(), HTCAPTION));
 165     ASSERT_TRUE(resizer.get());
 166     // Drag the pointer to the right. Once it reaches the right edge of the
 167     // primary display, it warps to the secondary.
 168     resizer->Drag(CalculateDragPoint(*resizer, 800, 10), 0);
 169     resizer->CompleteDrag();
 170     // The whole window is on the secondary display now. The parent should be
 171     // changed.
 172     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 173     EXPECT_EQ("0,10 50x60", window_->bounds().ToString());
 174   }
 175
 176   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 177                              Shell::GetScreen()->GetPrimaryDisplay());
 178   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 179   {
 180     // Grab (0, 0) of the window and move the pointer to (775, 10).
 181     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 182         window_.get(), gfx::Point(), HTCAPTION));
 183     ASSERT_TRUE(resizer.get());
 184     resizer->Drag(CalculateDragPoint(*resizer, 795, 10), 0);
 185     // Window should be adjusted for minimum visibility (25px) during the drag.
 186     EXPECT_EQ("775,10 50x60", window_->bounds().ToString());
 187     resizer->CompleteDrag();
 188     // Since the pointer is still on the primary root window, the parent should
 189     // not be changed.
 190     // Window origin should be adjusted for minimum visibility (25px).
 191     EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 192     EXPECT_EQ("775,10 50x60", window_->bounds().ToString());
 193   }
 194
 195   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 196                              Shell::GetScreen()->GetPrimaryDisplay());
 197   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 198   {
 199     // Grab the top-right edge of the window and move the pointer to (0, 10)
 200     // in the secondary root window's coordinates.
 201     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 202         window_.get(), gfx::Point(49, 0), HTCAPTION));
 203     ASSERT_TRUE(resizer.get());
 204     resizer->Drag(CalculateDragPoint(*resizer, 751, 10), ui::EF_CONTROL_DOWN);
 205     resizer->CompleteDrag();
 206     // Since the pointer is on the secondary, the parent should be changed
 207     // even though only small fraction of the window is within the secondary
 208     // root window's bounds.
 209     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 210     // Window origin should be adjusted for minimum visibility (25px).
 211     int expected_x = -50 + kMinimumOnScreenArea;
 212
 213     EXPECT_EQ(base::IntToString(expected_x) + ",10 50x60",
 214               window_->bounds().ToString());
 215   }
 216   // Dropping a window that is larger than the destination work area
 217   // will shrink to fit to the work area.
 218   window_->SetBoundsInScreen(gfx::Rect(0, 0, 700, 500),
 219                              Shell::GetScreen()->GetPrimaryDisplay());
 220   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 221   {
 222     // Grab the top-right edge of the window and move the pointer to (0, 10)
 223     // in the secondary root window's coordinates.
 224     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 225         window_.get(), gfx::Point(699, 0), HTCAPTION));
 226     ASSERT_TRUE(resizer.get());
 227     resizer->Drag(CalculateDragPoint(*resizer, 101, 10), ui::EF_CONTROL_DOWN);
 228     resizer->CompleteDrag();
 229     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 230     // Window size should be adjusted to fit to the work area
 231     EXPECT_EQ("400x253", window_->bounds().size().ToString());
 232     gfx::Rect window_bounds_in_screen = window_->GetBoundsInScreen();
 233     gfx::Rect intersect(window_->GetRootWindow()->GetBoundsInScreen());
 234     intersect.Intersect(window_bounds_in_screen);
 235
 236     EXPECT_LE(10, intersect.width());
 237     EXPECT_LE(10, intersect.height());
 238     EXPECT_TRUE(window_bounds_in_screen.Contains(gfx::Point(800, 10)));
 239   }
 240
 241   // Dropping a window that is larger than the destination work area
 242   // will shrink to fit to the work area.
 243   window_->SetBoundsInScreen(gfx::Rect(0, 0, 700, 500),
 244                              Shell::GetScreen()->GetPrimaryDisplay());
 245   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 246   {
 247     // Grab the top-left edge of the window and move the pointer to (150, 10)
 248     // in the secondary root window's coordinates. Make sure the window is
 249     // shrink in such a way that it keeps the cursor within.
 250     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 251         window_.get(), gfx::Point(0, 0), HTCAPTION));
 252     ASSERT_TRUE(resizer.get());
 253     resizer->Drag(CalculateDragPoint(*resizer, 799, 10), ui::EF_CONTROL_DOWN);
 254     resizer->Drag(CalculateDragPoint(*resizer, 850, 10), ui::EF_CONTROL_DOWN);
 255     resizer->CompleteDrag();
 256     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 257     // Window size should be adjusted to fit to the work area
 258     EXPECT_EQ("400x253", window_->bounds().size().ToString());
 259     gfx::Rect window_bounds_in_screen = window_->GetBoundsInScreen();
 260     gfx::Rect intersect(window_->GetRootWindow()->GetBoundsInScreen());
 261     intersect.Intersect(window_bounds_in_screen);
 262     EXPECT_LE(10, intersect.width());
 263     EXPECT_LE(10, intersect.height());
 264     EXPECT_TRUE(window_bounds_in_screen.Contains(gfx::Point(850, 10)));
 265   }
 266 }
 267
 268 // Verifies that dragging the active window to another display makes the new
 269 // root window the active root window.
 270 TEST_F(DragWindowResizerTest, WindowDragWithMultiDisplaysActiveRoot) {
 271   if (!SupportsMultipleDisplays())
 272     return;
 273
 274   // The secondary display is logically on the right, but on the system (e.g. X)
 275   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
 276   UpdateDisplay("800x600,800x600");
 277   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 278   ASSERT_EQ(2U, root_windows.size());
 279
 280   aura::test::TestWindowDelegate delegate;
 281   scoped_ptr<aura::Window> window(new aura::Window(&delegate));
 282   window->SetType(ui::wm::WINDOW_TYPE_NORMAL);
 283   window->Init(ui::LAYER_TEXTURED);
 284   ParentWindowInPrimaryRootWindow(window.get());
 285   window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 286                             Shell::GetScreen()->GetPrimaryDisplay());
 287   window->Show();
 288   EXPECT_TRUE(ash::wm::CanActivateWindow(window.get()));
 289   ash::wm::ActivateWindow(window.get());
 290   EXPECT_EQ(root_windows[0], window->GetRootWindow());
 291   EXPECT_EQ(root_windows[0], ash::Shell::GetTargetRootWindow());
 292   {
 293     // Grab (0, 0) of the window.
 294     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 295         window.get(), gfx::Point(), HTCAPTION));
 296     ASSERT_TRUE(resizer.get());
 297     // Drag the pointer to the right. Once it reaches the right edge of the
 298     // primary display, it warps to the secondary.
 299     resizer->Drag(CalculateDragPoint(*resizer, 800, 10), 0);
 300     resizer->CompleteDrag();
 301     // The whole window is on the secondary display now. The parent should be
 302     // changed.
 303     EXPECT_EQ(root_windows[1], window->GetRootWindow());
 304     EXPECT_EQ(root_windows[1], ash::Shell::GetTargetRootWindow());
 305   }
 306 }
 307
 308 // Verifies a window can be moved from the secondary display to primary.
 309 TEST_F(DragWindowResizerTest, WindowDragWithMultiDisplaysRightToLeft) {
 310   if (!SupportsMultipleDisplays())
 311     return;
 312
 313   UpdateDisplay("800x600,800x600");
 314   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 315   ASSERT_EQ(2U, root_windows.size());
 316
 317   window_->SetBoundsInScreen(
 318       gfx::Rect(800, 00, 50, 60),
 319       Shell::GetScreen()->GetDisplayNearestWindow(root_windows[1]));
 320   EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 321   {
 322     // Grab (0, 0) of the window.
 323     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 324         window_.get(), gfx::Point(), HTCAPTION));
 325     ASSERT_TRUE(resizer.get());
 326     // Move the mouse near the right edge, (798, 0), of the primary display.
 327     resizer->Drag(CalculateDragPoint(*resizer, -2, 0), ui::EF_CONTROL_DOWN);
 328     resizer->CompleteDrag();
 329     EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 330     // Window origin should be adjusted for minimum visibility (25px).
 331     EXPECT_EQ("775,0 50x60", window_->bounds().ToString());
 332   }
 333 }
 334
 335 // Verifies the drag window is shown correctly.
 336 TEST_F(DragWindowResizerTest, DragWindowController) {
 337   if (!SupportsMultipleDisplays())
 338     return;
 339
 340   UpdateDisplay("800x600,800x600");
 341   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 342   ASSERT_EQ(2U, root_windows.size());
 343
 344   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 345                              Shell::GetScreen()->GetPrimaryDisplay());
 346   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 347   EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
 348   {
 349     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 350         window_.get(), gfx::Point(), HTCAPTION));
 351     ASSERT_TRUE(resizer.get());
 352     DragWindowResizer* drag_resizer = DragWindowResizer::instance_;
 353     ASSERT_TRUE(drag_resizer);
 354     EXPECT_EQ(0u, drag_resizer->drag_window_controllers_.size());
 355
 356     // The pointer is inside the primary root. The drag window controller
 357     // should be NULL.
 358     resizer->Drag(CalculateDragPoint(*resizer, 10, 10), 0);
 359     EXPECT_EQ(0u, drag_resizer->drag_window_controllers_.size());
 360
 361     // The window spans both root windows.
 362     resizer->Drag(CalculateDragPoint(*resizer, 798, 10), 0);
 363     EXPECT_EQ(1u, drag_resizer->drag_window_controllers_.size());
 364     DragWindowController* controller =
 365         drag_resizer->drag_window_controllers_[0];
 366     ASSERT_TRUE(controller);
 367
 368     ASSERT_TRUE(controller->drag_widget_);
 369     ui::Layer* drag_layer =
 370         controller->drag_widget_->GetNativeWindow()->layer();
 371     ASSERT_TRUE(drag_layer);
 372     // Check if |resizer->layer_| is properly set to the drag widget.
 373     const std::vector<ui::Layer*>& layers = drag_layer->children();
 374     EXPECT_FALSE(layers.empty());
 375     EXPECT_EQ(controller->layer_owner_->root(), layers.back());
 376
 377     // |window_| should be opaque since the pointer is still on the primary
 378     // root window. The drag window should be semi-transparent.
 379     EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
 380     ASSERT_TRUE(controller->drag_widget_);
 381     EXPECT_GT(1.0f, drag_layer->opacity());
 382
 383     // Enter the pointer to the secondary display.
 384     resizer->Drag(CalculateDragPoint(*resizer, 800, 10), 0);
 385     EXPECT_EQ(1u, drag_resizer->drag_window_controllers_.size());
 386     controller = drag_resizer->drag_window_controllers_[0];
 387     ASSERT_TRUE(controller);
 388     // |window_| should be transparent, and the drag window should be opaque.
 389     EXPECT_GT(1.0f, window_->layer()->opacity());
 390     EXPECT_FLOAT_EQ(1.0f, drag_layer->opacity());
 391
 392     resizer->CompleteDrag();
 393     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 394     EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
 395   }
 396
 397   // Do the same test with RevertDrag().
 398   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 399                              Shell::GetScreen()->GetPrimaryDisplay());
 400   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 401   EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
 402   {
 403     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 404         window_.get(), gfx::Point(), HTCAPTION));
 405     ASSERT_TRUE(resizer.get());
 406     DragWindowResizer* drag_resizer = DragWindowResizer::instance_;
 407     ASSERT_TRUE(drag_resizer);
 408     EXPECT_EQ(0u, drag_resizer->drag_window_controllers_.size());
 409
 410     resizer->Drag(CalculateDragPoint(*resizer, 0, 610), 0);
 411     resizer->RevertDrag();
 412     EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 413     EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
 414   }
 415 }
 416
 417 // Verifies if the resizer sets and resets
 418 // MouseCursorEventFilter::mouse_warp_mode_ as expected.
 419 TEST_F(DragWindowResizerTest, WarpMousePointer) {
 420   MouseCursorEventFilter* event_filter =
 421       Shell::GetInstance()->mouse_cursor_filter();
 422   ASSERT_TRUE(event_filter);
 423   window_->SetBounds(gfx::Rect(0, 0, 50, 60));
 424
 425   EXPECT_TRUE(event_filter->mouse_warp_enabled_);
 426   {
 427     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 428         window_.get(), gfx::Point(), HTCAPTION));
 429     // While dragging a window, warp should be allowed.
 430     EXPECT_TRUE(event_filter->mouse_warp_enabled_);
 431     resizer->CompleteDrag();
 432   }
 433   EXPECT_TRUE(event_filter->mouse_warp_enabled_);
 434
 435   {
 436     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 437         window_.get(), gfx::Point(), HTCAPTION));
 438     EXPECT_TRUE(event_filter->mouse_warp_enabled_);
 439     resizer->RevertDrag();
 440   }
 441   EXPECT_TRUE(event_filter->mouse_warp_enabled_);
 442
 443   {
 444     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 445         window_.get(), gfx::Point(), HTRIGHT));
 446     // While resizing a window, warp should NOT be allowed.
 447     EXPECT_FALSE(event_filter->mouse_warp_enabled_);
 448     resizer->CompleteDrag();
 449   }
 450   EXPECT_TRUE(event_filter->mouse_warp_enabled_);
 451
 452   {
 453     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 454         window_.get(), gfx::Point(), HTRIGHT));
 455     EXPECT_FALSE(event_filter->mouse_warp_enabled_);
 456     resizer->RevertDrag();
 457   }
 458   EXPECT_TRUE(event_filter->mouse_warp_enabled_);
 459 }
 460
 461 // Verifies cursor's device scale factor is updated whe a window is moved across
 462 // root windows with different device scale factors (http://crbug.com/154183).
 463 TEST_F(DragWindowResizerTest, CursorDeviceScaleFactor) {
 464   if (!SupportsMultipleDisplays())
 465     return;
 466
 467   // The secondary display is logically on the right, but on the system (e.g. X)
 468   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
 469   UpdateDisplay("400x400,800x800*2");
 470   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 471   ASSERT_EQ(2U, root_windows.size());
 472
 473   test::CursorManagerTestApi cursor_test_api(
 474       Shell::GetInstance()->cursor_manager());
 475   // Move window from the root window with 1.0 device scale factor to the root
 476   // window with 2.0 device scale factor.
 477   {
 478     window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 479                                Shell::GetScreen()->GetPrimaryDisplay());
 480     EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 481     // Grab (0, 0) of the window.
 482     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 483         window_.get(), gfx::Point(), HTCAPTION));
 484     EXPECT_EQ(1.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 485     ASSERT_TRUE(resizer.get());
 486     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 487     TestIfMouseWarpsAt(gfx::Point(399, 200));
 488     EXPECT_EQ(2.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 489     resizer->CompleteDrag();
 490     EXPECT_EQ(2.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 491   }
 492
 493   // Move window from the root window with 2.0 device scale factor to the root
 494   // window with 1.0 device scale factor.
 495   {
 496     // Make sure the window is on the default container first.
 497     aura::Window* default_container =
 498         GetRootWindowController(root_windows[1])
 499             ->GetContainer(kShellWindowId_DefaultContainer);
 500     default_container->AddChild(window_.get());
 501     window_->SetBoundsInScreen(
 502         gfx::Rect(600, 0, 50, 60),
 503         Shell::GetScreen()->GetDisplayNearestWindow(root_windows[1]));
 504     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 505     // Grab (0, 0) of the window.
 506     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 507         window_.get(), gfx::Point(), HTCAPTION));
 508     EXPECT_EQ(2.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 509     ASSERT_TRUE(resizer.get());
 510     resizer->Drag(CalculateDragPoint(*resizer, -200, 200), 0);
 511     TestIfMouseWarpsAt(gfx::Point(400, 200));
 512     EXPECT_EQ(1.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 513     resizer->CompleteDrag();
 514     EXPECT_EQ(1.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 515   }
 516 }
 517
 518 // Verifies several kinds of windows can be moved across displays.
 519 TEST_F(DragWindowResizerTest, MoveWindowAcrossDisplays) {
 520   if (!SupportsMultipleDisplays())
 521     return;
 522
 523   // The secondary display is logically on the right, but on the system (e.g. X)
 524   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
 525   UpdateDisplay("400x400,400x400");
 526
 527   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 528   ASSERT_EQ(2U, root_windows.size());
 529
 530   // Normal window can be moved across display.
 531   {
 532     aura::Window* window = window_.get();
 533     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 534                               Shell::GetScreen()->GetPrimaryDisplay());
 535     // Grab (0, 0) of the window.
 536     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 537         window, gfx::Point(), HTCAPTION));
 538     ASSERT_TRUE(resizer.get());
 539     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 540     EXPECT_TRUE(TestIfMouseWarpsAt(gfx::Point(399, 200)));
 541     EXPECT_EQ("401,200",
 542               aura::Env::GetInstance()->last_mouse_location().ToString());
 543     resizer->CompleteDrag();
 544   }
 545
 546   // Always on top window can be moved across display.
 547   {
 548     aura::Window* window = always_on_top_window_.get();
 549     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 550                               Shell::GetScreen()->GetPrimaryDisplay());
 551     // Grab (0, 0) of the window.
 552     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 553         window, gfx::Point(), HTCAPTION));
 554     ASSERT_TRUE(resizer.get());
 555     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 556     EXPECT_TRUE(TestIfMouseWarpsAt(gfx::Point(399, 200)));
 557     EXPECT_EQ("401,200",
 558               aura::Env::GetInstance()->last_mouse_location().ToString());
 559     resizer->CompleteDrag();
 560   }
 561
 562   // System modal window can be moved across display.
 563   {
 564     aura::Window* window = system_modal_window_.get();
 565     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 566                               Shell::GetScreen()->GetPrimaryDisplay());
 567     aura::Env::GetInstance()->set_last_mouse_location(gfx::Point(0, 0));
 568     // Grab (0, 0) of the window.
 569     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 570         window, gfx::Point(), HTCAPTION));
 571     ASSERT_TRUE(resizer.get());
 572     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 573     EXPECT_TRUE(TestIfMouseWarpsAt(gfx::Point(399, 200)));
 574     EXPECT_EQ("401,200",
 575               aura::Env::GetInstance()->last_mouse_location().ToString());
 576     resizer->CompleteDrag();
 577   }
 578
 579   // Transient window cannot be moved across display.
 580   {
 581     aura::Window* window = transient_child_;
 582     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 583                               Shell::GetScreen()->GetPrimaryDisplay());
 584     // Grab (0, 0) of the window.
 585     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 586         window, gfx::Point(), HTCAPTION));
 587     ASSERT_TRUE(resizer.get());
 588     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 589     EXPECT_FALSE(TestIfMouseWarpsAt(gfx::Point(399, 200)));
 590     EXPECT_EQ("399,200",
 591               aura::Env::GetInstance()->last_mouse_location().ToString());
 592     resizer->CompleteDrag();
 593   }
 594
 595   // The parent of transient window can be moved across display.
 596   {
 597     aura::Window* window = transient_parent_.get();
 598     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 599                               Shell::GetScreen()->GetPrimaryDisplay());
 600     // Grab (0, 0) of the window.
 601     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 602         window, gfx::Point(), HTCAPTION));
 603     ASSERT_TRUE(resizer.get());
 604     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 605     EXPECT_TRUE(TestIfMouseWarpsAt(gfx::Point(399, 200)));
 606     EXPECT_EQ("401,200",
 607               aura::Env::GetInstance()->last_mouse_location().ToString());
 608     resizer->CompleteDrag();
 609   }
 610
 611   // Panel window can be moved across display.
 612   {
 613     aura::Window* window = panel_window_.get();
 614     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 615                               Shell::GetScreen()->GetPrimaryDisplay());
 616     // Grab (0, 0) of the window.
 617     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 618         window, gfx::Point(), HTCAPTION));
 619     ASSERT_TRUE(resizer.get());
 620     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 621     EXPECT_TRUE(TestIfMouseWarpsAt(gfx::Point(399, 200)));
 622     EXPECT_EQ("401,200",
 623               aura::Env::GetInstance()->last_mouse_location().ToString());
 624     resizer->CompleteDrag();
 625   }
 626 }
 627
 628 }  // namespace ash