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/wm/drag_window_controller.h"
  15 #include "ash/wm/window_util.h"
  16 #include "base/strings/string_number_conversions.h"
  17 #include "base/strings/stringprintf.h"
  18 #include "ui/aura/client/aura_constants.h"
  19 #include "ui/aura/test/test_window_delegate.h"
  20 #include "ui/aura/window_event_dispatcher.h"
  21 #include "ui/base/hit_test.h"
  22 #include "ui/base/ui_base_types.h"
  23 #include "ui/compositor/layer_tree_owner.h"
  24 #include "ui/gfx/geometry/insets.h"
  25 #include "ui/gfx/screen.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(aura::WINDOW_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(aura::WINDOW_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(aura::WINDOW_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(aura::WINDOW_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(aura::WINDOW_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(aura::WINDOW_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 WarpMouseCursorIfNecessary(aura::Window* target_root,
 125                                   const gfx::Point& point_in_screen) {
 126     MouseCursorEventFilter* event_filter =
 127         Shell::GetInstance()->mouse_cursor_filter();
 128     bool is_warped = event_filter->WarpMouseCursorIfNecessaryForTest(
 129         target_root, point_in_screen);
 130     return is_warped;
 131   }
 132
 133   aura::test::TestWindowDelegate delegate_;
 134   aura::test::TestWindowDelegate delegate2_;
 135   aura::test::TestWindowDelegate delegate3_;
 136   aura::test::TestWindowDelegate delegate4_;
 137   aura::test::TestWindowDelegate delegate5_;
 138   aura::test::TestWindowDelegate delegate6_;
 139
 140   scoped_ptr<aura::Window> window_;
 141   scoped_ptr<aura::Window> always_on_top_window_;
 142   scoped_ptr<aura::Window> system_modal_window_;
 143   scoped_ptr<aura::Window> panel_window_;
 144   aura::Window* transient_child_;
 145   scoped_ptr<aura::Window> transient_parent_;
 146
 147  private:
 148   DISALLOW_COPY_AND_ASSIGN(DragWindowResizerTest);
 149 };
 150
 151 // Verifies a window can be moved from the primary display to another.
 152 TEST_F(DragWindowResizerTest, WindowDragWithMultiDisplays) {
 153   if (!SupportsMultipleDisplays())
 154     return;
 155
 156   // The secondary display is logically on the right, but on the system (e.g. X)
 157   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
 158   UpdateDisplay("800x600,400x300");
 159   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 160   ASSERT_EQ(2U, root_windows.size());
 161
 162   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 163                              Shell::GetScreen()->GetPrimaryDisplay());
 164   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 165   {
 166     // Grab (0, 0) of the window.
 167     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 168         window_.get(), gfx::Point(), HTCAPTION));
 169     ASSERT_TRUE(resizer.get());
 170     // Drag the pointer to the right. Once it reaches the right edge of the
 171     // primary display, it warps to the secondary.
 172     resizer->Drag(CalculateDragPoint(*resizer, 800, 10), 0);
 173     resizer->CompleteDrag();
 174     // The whole window is on the secondary display now. The parent should be
 175     // changed.
 176     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 177     EXPECT_EQ("0,10 50x60", window_->bounds().ToString());
 178   }
 179
 180   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 181                              Shell::GetScreen()->GetPrimaryDisplay());
 182   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 183   {
 184     // Grab (0, 0) of the window and move the pointer to (790, 10).
 185     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 186         window_.get(), gfx::Point(), HTCAPTION));
 187     ASSERT_TRUE(resizer.get());
 188     resizer->Drag(CalculateDragPoint(*resizer, 795, 10), 0);
 189     // Window should be adjusted for minimum visibility (10px) during the drag.
 190     EXPECT_EQ("790,10 50x60", window_->bounds().ToString());
 191     resizer->CompleteDrag();
 192     // Since the pointer is still on the primary root window, the parent should
 193     // not be changed.
 194     // Window origin should be adjusted for minimum visibility (10px).
 195     EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 196     EXPECT_EQ("790,10 50x60", window_->bounds().ToString());
 197   }
 198
 199   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 200                              Shell::GetScreen()->GetPrimaryDisplay());
 201   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 202   {
 203     // Grab the top-right edge of the window and move the pointer to (0, 10)
 204     // in the secondary root window's coordinates.
 205     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 206         window_.get(), gfx::Point(49, 0), HTCAPTION));
 207     ASSERT_TRUE(resizer.get());
 208     resizer->Drag(CalculateDragPoint(*resizer, 751, 10), ui::EF_CONTROL_DOWN);
 209     resizer->CompleteDrag();
 210     // Since the pointer is on the secondary, the parent should be changed
 211     // even though only small fraction of the window is within the secondary
 212     // root window's bounds.
 213     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 214     // Window origin should be adjusted for minimum visibility (10px).
 215     int expected_x = -50 + 10;
 216     EXPECT_EQ(base::IntToString(expected_x) + ",10 50x60",
 217               window_->bounds().ToString());
 218   }
 219   // Dropping a window that is larger than the destination work area
 220   // will shrink to fit to the work area.
 221   window_->SetBoundsInScreen(gfx::Rect(0, 0, 700, 500),
 222                              Shell::GetScreen()->GetPrimaryDisplay());
 223   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 224   {
 225     // Grab the top-right edge of the window and move the pointer to (0, 10)
 226     // in the secondary root window's coordinates.
 227     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 228         window_.get(), gfx::Point(699, 0), HTCAPTION));
 229     ASSERT_TRUE(resizer.get());
 230     resizer->Drag(CalculateDragPoint(*resizer, 101, 10), ui::EF_CONTROL_DOWN);
 231     resizer->CompleteDrag();
 232     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 233     // Window size should be adjusted to fit to the work area
 234     EXPECT_EQ("400x253", window_->bounds().size().ToString());
 235     gfx::Rect window_bounds_in_screen = window_->GetBoundsInScreen();
 236     gfx::Rect intersect(window_->GetRootWindow()->GetBoundsInScreen());
 237     intersect.Intersect(window_bounds_in_screen);
 238
 239     EXPECT_LE(10, intersect.width());
 240     EXPECT_LE(10, intersect.height());
 241     EXPECT_TRUE(window_bounds_in_screen.Contains(gfx::Point(800, 10)));
 242   }
 243
 244   // Dropping a window that is larger than the destination work area
 245   // will shrink to fit to the work area.
 246   window_->SetBoundsInScreen(gfx::Rect(0, 0, 700, 500),
 247                              Shell::GetScreen()->GetPrimaryDisplay());
 248   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 249   {
 250     // Grab the top-left edge of the window and move the pointer to (150, 10)
 251     // in the secondary root window's coordinates. Make sure the window is
 252     // shrink in such a way that it keeps the cursor within.
 253     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 254         window_.get(), gfx::Point(0, 0), HTCAPTION));
 255     ASSERT_TRUE(resizer.get());
 256     resizer->Drag(CalculateDragPoint(*resizer, 799, 10), ui::EF_CONTROL_DOWN);
 257     resizer->Drag(CalculateDragPoint(*resizer, 850, 10), ui::EF_CONTROL_DOWN);
 258     resizer->CompleteDrag();
 259     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 260     // Window size should be adjusted to fit to the work area
 261     EXPECT_EQ("400x253", window_->bounds().size().ToString());
 262     gfx::Rect window_bounds_in_screen = window_->GetBoundsInScreen();
 263     gfx::Rect intersect(window_->GetRootWindow()->GetBoundsInScreen());
 264     intersect.Intersect(window_bounds_in_screen);
 265     EXPECT_LE(10, intersect.width());
 266     EXPECT_LE(10, intersect.height());
 267     EXPECT_TRUE(window_bounds_in_screen.Contains(gfx::Point(850, 10)));
 268   }
 269 }
 270
 271 // Verifies that dragging the active window to another display makes the new
 272 // root window the active root window.
 273 TEST_F(DragWindowResizerTest, WindowDragWithMultiDisplaysActiveRoot) {
 274   if (!SupportsMultipleDisplays())
 275     return;
 276
 277   // The secondary display is logically on the right, but on the system (e.g. X)
 278   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
 279   UpdateDisplay("800x600,800x600");
 280   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 281   ASSERT_EQ(2U, root_windows.size());
 282
 283   aura::test::TestWindowDelegate delegate;
 284   scoped_ptr<aura::Window> window(new aura::Window(&delegate));
 285   window->SetType(ui::wm::WINDOW_TYPE_NORMAL);
 286   window->Init(aura::WINDOW_LAYER_TEXTURED);
 287   ParentWindowInPrimaryRootWindow(window.get());
 288   window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 289                             Shell::GetScreen()->GetPrimaryDisplay());
 290   window->Show();
 291   EXPECT_TRUE(ash::wm::CanActivateWindow(window.get()));
 292   ash::wm::ActivateWindow(window.get());
 293   EXPECT_EQ(root_windows[0], window->GetRootWindow());
 294   EXPECT_EQ(root_windows[0], ash::Shell::GetTargetRootWindow());
 295   {
 296     // Grab (0, 0) of the window.
 297     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 298         window.get(), gfx::Point(), HTCAPTION));
 299     ASSERT_TRUE(resizer.get());
 300     // Drag the pointer to the right. Once it reaches the right edge of the
 301     // primary display, it warps to the secondary.
 302     resizer->Drag(CalculateDragPoint(*resizer, 800, 10), 0);
 303     resizer->CompleteDrag();
 304     // The whole window is on the secondary display now. The parent should be
 305     // changed.
 306     EXPECT_EQ(root_windows[1], window->GetRootWindow());
 307     EXPECT_EQ(root_windows[1], ash::Shell::GetTargetRootWindow());
 308   }
 309 }
 310
 311 // Verifies a window can be moved from the secondary display to primary.
 312 TEST_F(DragWindowResizerTest, WindowDragWithMultiDisplaysRightToLeft) {
 313   if (!SupportsMultipleDisplays())
 314     return;
 315
 316   UpdateDisplay("800x600,800x600");
 317   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 318   ASSERT_EQ(2U, root_windows.size());
 319
 320   window_->SetBoundsInScreen(
 321       gfx::Rect(800, 00, 50, 60),
 322       Shell::GetScreen()->GetDisplayNearestWindow(root_windows[1]));
 323   EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 324   {
 325     // Grab (0, 0) of the window.
 326     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 327         window_.get(), gfx::Point(), HTCAPTION));
 328     ASSERT_TRUE(resizer.get());
 329     // Move the mouse near the right edge, (798, 0), of the primary display.
 330     resizer->Drag(CalculateDragPoint(*resizer, -2, 0), ui::EF_CONTROL_DOWN);
 331     resizer->CompleteDrag();
 332     EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 333     // Window origin should be adjusted for minimum visibility (10px).
 334     int expected_x = 800 - 10;
 335     EXPECT_EQ(base::IntToString(expected_x) + ",0 50x60",
 336               window_->bounds().ToString());
 337   }
 338 }
 339
 340 // Verifies the drag window is shown correctly.
 341 TEST_F(DragWindowResizerTest, DragWindowController) {
 342   if (!SupportsMultipleDisplays())
 343     return;
 344
 345   UpdateDisplay("800x600,800x600");
 346   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 347   ASSERT_EQ(2U, root_windows.size());
 348
 349   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 350                              Shell::GetScreen()->GetPrimaryDisplay());
 351   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 352   EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
 353   {
 354     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 355         window_.get(), gfx::Point(), HTCAPTION));
 356     ASSERT_TRUE(resizer.get());
 357     DragWindowResizer* drag_resizer = DragWindowResizer::instance_;
 358     ASSERT_TRUE(drag_resizer);
 359     EXPECT_EQ(0u, drag_resizer->drag_window_controllers_.size());
 360
 361     // The pointer is inside the primary root. The drag window controller
 362     // should be NULL.
 363     resizer->Drag(CalculateDragPoint(*resizer, 10, 10), 0);
 364     EXPECT_EQ(0u, drag_resizer->drag_window_controllers_.size());
 365
 366     // The window spans both root windows.
 367     resizer->Drag(CalculateDragPoint(*resizer, 798, 10), 0);
 368     EXPECT_EQ(1u, drag_resizer->drag_window_controllers_.size());
 369     DragWindowController* controller =
 370         drag_resizer->drag_window_controllers_[0];
 371     ASSERT_TRUE(controller);
 372
 373     ASSERT_TRUE(controller->drag_widget_);
 374     ui::Layer* drag_layer =
 375         controller->drag_widget_->GetNativeWindow()->layer();
 376     ASSERT_TRUE(drag_layer);
 377     // Check if |resizer->layer_| is properly set to the drag widget.
 378     const std::vector<ui::Layer*>& layers = drag_layer->children();
 379     EXPECT_FALSE(layers.empty());
 380     EXPECT_EQ(controller->layer_owner_->root(), layers.back());
 381
 382     // |window_| should be opaque since the pointer is still on the primary
 383     // root window. The drag window should be semi-transparent.
 384     EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
 385     ASSERT_TRUE(controller->drag_widget_);
 386     EXPECT_GT(1.0f, drag_layer->opacity());
 387
 388     // Enter the pointer to the secondary display.
 389     resizer->Drag(CalculateDragPoint(*resizer, 800, 10), 0);
 390     EXPECT_EQ(1u, drag_resizer->drag_window_controllers_.size());
 391     controller = drag_resizer->drag_window_controllers_[0];
 392     ASSERT_TRUE(controller);
 393     // |window_| should be transparent, and the drag window should be opaque.
 394     EXPECT_GT(1.0f, window_->layer()->opacity());
 395     EXPECT_FLOAT_EQ(1.0f, drag_layer->opacity());
 396
 397     resizer->CompleteDrag();
 398     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 399     EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
 400   }
 401
 402   // Do the same test with RevertDrag().
 403   window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 404                              Shell::GetScreen()->GetPrimaryDisplay());
 405   EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 406   EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
 407   {
 408     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 409         window_.get(), gfx::Point(), HTCAPTION));
 410     ASSERT_TRUE(resizer.get());
 411     DragWindowResizer* drag_resizer = DragWindowResizer::instance_;
 412     ASSERT_TRUE(drag_resizer);
 413     EXPECT_EQ(0u, drag_resizer->drag_window_controllers_.size());
 414
 415     resizer->Drag(CalculateDragPoint(*resizer, 0, 610), 0);
 416     resizer->RevertDrag();
 417     EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 418     EXPECT_FLOAT_EQ(1.0f, window_->layer()->opacity());
 419   }
 420 }
 421
 422 // Verifies if the resizer sets and resets
 423 // MouseCursorEventFilter::mouse_warp_mode_ as expected.
 424 TEST_F(DragWindowResizerTest, WarpMousePointer) {
 425   MouseCursorEventFilter* event_filter =
 426       Shell::GetInstance()->mouse_cursor_filter();
 427   ASSERT_TRUE(event_filter);
 428   window_->SetBounds(gfx::Rect(0, 0, 50, 60));
 429
 430   EXPECT_EQ(MouseCursorEventFilter::WARP_ALWAYS,
 431             event_filter->mouse_warp_mode_);
 432   {
 433     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 434         window_.get(), gfx::Point(), HTCAPTION));
 435     // While dragging a window, warp should be allowed.
 436     EXPECT_EQ(MouseCursorEventFilter::WARP_DRAG,
 437               event_filter->mouse_warp_mode_);
 438     resizer->CompleteDrag();
 439   }
 440   EXPECT_EQ(MouseCursorEventFilter::WARP_ALWAYS,
 441             event_filter->mouse_warp_mode_);
 442
 443   {
 444     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 445         window_.get(), gfx::Point(), HTCAPTION));
 446     EXPECT_EQ(MouseCursorEventFilter::WARP_DRAG,
 447               event_filter->mouse_warp_mode_);
 448     resizer->RevertDrag();
 449   }
 450   EXPECT_EQ(MouseCursorEventFilter::WARP_ALWAYS,
 451             event_filter->mouse_warp_mode_);
 452
 453   {
 454     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 455         window_.get(), gfx::Point(), HTRIGHT));
 456     // While resizing a window, warp should NOT be allowed.
 457     EXPECT_EQ(MouseCursorEventFilter::WARP_NONE,
 458               event_filter->mouse_warp_mode_);
 459     resizer->CompleteDrag();
 460   }
 461   EXPECT_EQ(MouseCursorEventFilter::WARP_ALWAYS,
 462             event_filter->mouse_warp_mode_);
 463
 464   {
 465     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 466         window_.get(), gfx::Point(), HTRIGHT));
 467     EXPECT_EQ(MouseCursorEventFilter::WARP_NONE,
 468               event_filter->mouse_warp_mode_);
 469     resizer->RevertDrag();
 470   }
 471   EXPECT_EQ(MouseCursorEventFilter::WARP_ALWAYS,
 472             event_filter->mouse_warp_mode_);
 473 }
 474
 475 // Verifies cursor's device scale factor is updated whe a window is moved across
 476 // root windows with different device scale factors (http://crbug.com/154183).
 477 TEST_F(DragWindowResizerTest, CursorDeviceScaleFactor) {
 478   if (!SupportsMultipleDisplays())
 479     return;
 480
 481   // The secondary display is logically on the right, but on the system (e.g. X)
 482   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
 483   UpdateDisplay("400x400,800x800*2");
 484   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 485   ASSERT_EQ(2U, root_windows.size());
 486
 487   test::CursorManagerTestApi cursor_test_api(
 488       Shell::GetInstance()->cursor_manager());
 489   // Move window from the root window with 1.0 device scale factor to the root
 490   // window with 2.0 device scale factor.
 491   {
 492     window_->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 493                                Shell::GetScreen()->GetPrimaryDisplay());
 494     EXPECT_EQ(root_windows[0], window_->GetRootWindow());
 495     // Grab (0, 0) of the window.
 496     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 497         window_.get(), gfx::Point(), HTCAPTION));
 498     EXPECT_EQ(1.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 499     ASSERT_TRUE(resizer.get());
 500     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 501     WarpMouseCursorIfNecessary(root_windows[0], gfx::Point(399, 200));
 502     EXPECT_EQ(2.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 503     resizer->CompleteDrag();
 504     EXPECT_EQ(2.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 505   }
 506
 507   // Move window from the root window with 2.0 device scale factor to the root
 508   // window with 1.0 device scale factor.
 509   {
 510     // Make sure the window is on the default container first.
 511     aura::Window* default_container =
 512         GetRootWindowController(root_windows[1])
 513             ->GetContainer(kShellWindowId_DefaultContainer);
 514     default_container->AddChild(window_.get());
 515     window_->SetBoundsInScreen(
 516         gfx::Rect(600, 0, 50, 60),
 517         Shell::GetScreen()->GetDisplayNearestWindow(root_windows[1]));
 518     EXPECT_EQ(root_windows[1], window_->GetRootWindow());
 519     // Grab (0, 0) of the window.
 520     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 521         window_.get(), gfx::Point(), HTCAPTION));
 522     EXPECT_EQ(2.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 523     ASSERT_TRUE(resizer.get());
 524     resizer->Drag(CalculateDragPoint(*resizer, -200, 200), 0);
 525     WarpMouseCursorIfNecessary(root_windows[1], gfx::Point(400, 200));
 526     EXPECT_EQ(1.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 527     resizer->CompleteDrag();
 528     EXPECT_EQ(1.0f, cursor_test_api.GetCurrentCursor().device_scale_factor());
 529   }
 530 }
 531
 532 // Verifies several kinds of windows can be moved across displays.
 533 TEST_F(DragWindowResizerTest, MoveWindowAcrossDisplays) {
 534   if (!SupportsMultipleDisplays())
 535     return;
 536
 537   // The secondary display is logically on the right, but on the system (e.g. X)
 538   // layer, it's below the primary one. See UpdateDisplay() in ash_test_base.cc.
 539   UpdateDisplay("400x400,400x400");
 540
 541   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
 542   ASSERT_EQ(2U, root_windows.size());
 543
 544   // Normal window can be moved across display.
 545   {
 546     aura::Window* window = window_.get();
 547     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 548                               Shell::GetScreen()->GetPrimaryDisplay());
 549     // Grab (0, 0) of the window.
 550     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 551         window, gfx::Point(), HTCAPTION));
 552     ASSERT_TRUE(resizer.get());
 553     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 554     EXPECT_TRUE(WarpMouseCursorIfNecessary(root_windows[0],
 555                                            gfx::Point(399, 200)));
 556     resizer->CompleteDrag();
 557   }
 558
 559   // Always on top window can be moved across display.
 560   {
 561     aura::Window* window = always_on_top_window_.get();
 562     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 563                               Shell::GetScreen()->GetPrimaryDisplay());
 564     // Grab (0, 0) of the window.
 565     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 566         window, gfx::Point(), HTCAPTION));
 567     ASSERT_TRUE(resizer.get());
 568     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 569     EXPECT_TRUE(WarpMouseCursorIfNecessary(root_windows[0],
 570                                            gfx::Point(399, 200)));
 571     resizer->CompleteDrag();
 572   }
 573
 574   // System modal window can be moved across display.
 575   {
 576     aura::Window* window = system_modal_window_.get();
 577     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 578                               Shell::GetScreen()->GetPrimaryDisplay());
 579     // Grab (0, 0) of the window.
 580     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 581         window, gfx::Point(), HTCAPTION));
 582     ASSERT_TRUE(resizer.get());
 583     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 584     EXPECT_TRUE(WarpMouseCursorIfNecessary(root_windows[0],
 585                                            gfx::Point(399, 200)));
 586     resizer->CompleteDrag();
 587   }
 588
 589   // Transient window cannot be moved across display.
 590   {
 591     aura::Window* window = transient_child_;
 592     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 593                               Shell::GetScreen()->GetPrimaryDisplay());
 594     // Grab (0, 0) of the window.
 595     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 596         window, gfx::Point(), HTCAPTION));
 597     ASSERT_TRUE(resizer.get());
 598     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 599     EXPECT_FALSE(WarpMouseCursorIfNecessary(
 600         root_windows[0],
 601         gfx::Point(399, 200)));
 602     resizer->CompleteDrag();
 603   }
 604
 605   // The parent of transient window can be moved across display.
 606   {
 607     aura::Window* window = transient_parent_.get();
 608     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 609                               Shell::GetScreen()->GetPrimaryDisplay());
 610     // Grab (0, 0) of the window.
 611     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 612         window, gfx::Point(), HTCAPTION));
 613     ASSERT_TRUE(resizer.get());
 614     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 615     EXPECT_TRUE(WarpMouseCursorIfNecessary(root_windows[0],
 616                                            gfx::Point(399, 200)));
 617     resizer->CompleteDrag();
 618   }
 619
 620   // Panel window can be moved across display.
 621   {
 622     aura::Window* window = panel_window_.get();
 623     window->SetBoundsInScreen(gfx::Rect(0, 0, 50, 60),
 624                               Shell::GetScreen()->GetPrimaryDisplay());
 625     // Grab (0, 0) of the window.
 626     scoped_ptr<WindowResizer> resizer(CreateDragWindowResizer(
 627         window, gfx::Point(), HTCAPTION));
 628     ASSERT_TRUE(resizer.get());
 629     resizer->Drag(CalculateDragPoint(*resizer, 399, 200), 0);
 630     EXPECT_TRUE(WarpMouseCursorIfNecessary(root_windows[0],
 631                                            gfx::Point(399, 200)));
 632     resizer->CompleteDrag();
 633   }
 634 }
 635
 636 }  // namespace ash