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