ui/aura/root_window_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 "ui/aura/root_window.h"
   6
   7 #include <vector>
   8
   9 #include "testing/gtest/include/gtest/gtest.h"
  10 #include "ui/aura/client/event_client.h"
  11 #include "ui/aura/env.h"
  12 #include "ui/aura/focus_manager.h"
  13 #include "ui/aura/test/aura_test_base.h"
  14 #include "ui/aura/test/event_generator.h"
  15 #include "ui/aura/test/test_cursor_client.h"
  16 #include "ui/aura/test/test_event_handler.h"
  17 #include "ui/aura/test/test_window_delegate.h"
  18 #include "ui/aura/test/test_windows.h"
  19 #include "ui/aura/window_tracker.h"
  20 #include "ui/base/hit_test.h"
  21 #include "ui/events/event.h"
  22 #include "ui/events/event_handler.h"
  23 #include "ui/events/event_utils.h"
  24 #include "ui/events/gestures/gesture_configuration.h"
  25 #include "ui/events/keycodes/keyboard_codes.h"
  26 #include "ui/gfx/point.h"
  27 #include "ui/gfx/rect.h"
  28 #include "ui/gfx/screen.h"
  29 #include "ui/gfx/transform.h"
  30
  31 namespace aura {
  32 namespace {
  33
  34 // A delegate that always returns a non-client component for hit tests.
  35 class NonClientDelegate : public test::TestWindowDelegate {
  36  public:
  37   NonClientDelegate()
  38       : non_client_count_(0),
  39         mouse_event_count_(0),
  40         mouse_event_flags_(0x0) {
  41   }
  42   virtual ~NonClientDelegate() {}
  43
  44   int non_client_count() const { return non_client_count_; }
  45   gfx::Point non_client_location() const { return non_client_location_; }
  46   int mouse_event_count() const { return mouse_event_count_; }
  47   gfx::Point mouse_event_location() const { return mouse_event_location_; }
  48   int mouse_event_flags() const { return mouse_event_flags_; }
  49
  50   virtual int GetNonClientComponent(const gfx::Point& location) const OVERRIDE {
  51     NonClientDelegate* self = const_cast<NonClientDelegate*>(this);
  52     self->non_client_count_++;
  53     self->non_client_location_ = location;
  54     return HTTOPLEFT;
  55   }
  56   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE {
  57     mouse_event_count_++;
  58     mouse_event_location_ = event->location();
  59     mouse_event_flags_ = event->flags();
  60     event->SetHandled();
  61   }
  62
  63  private:
  64   int non_client_count_;
  65   gfx::Point non_client_location_;
  66   int mouse_event_count_;
  67   gfx::Point mouse_event_location_;
  68   int mouse_event_flags_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(NonClientDelegate);
  71 };
  72
  73 // A simple event handler that consumes key events.
  74 class ConsumeKeyHandler : public test::TestEventHandler {
  75  public:
  76   ConsumeKeyHandler() {}
  77   virtual ~ConsumeKeyHandler() {}
  78
  79   // Overridden from ui::EventHandler:
  80   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE {
  81     test::TestEventHandler::OnKeyEvent(event);
  82     event->StopPropagation();
  83   }
  84
  85  private:
  86   DISALLOW_COPY_AND_ASSIGN(ConsumeKeyHandler);
  87 };
  88
  89 bool IsFocusedWindow(aura::Window* window) {
  90   return client::GetFocusClient(window)->GetFocusedWindow() == window;
  91 }
  92
  93 }  // namespace
  94
  95 typedef test::AuraTestBase RootWindowTest;
  96
  97 TEST_F(RootWindowTest, OnHostMouseEvent) {
  98   // Create two non-overlapping windows so we don't have to worry about which
  99   // is on top.
 100   scoped_ptr<NonClientDelegate> delegate1(new NonClientDelegate());
 101   scoped_ptr<NonClientDelegate> delegate2(new NonClientDelegate());
 102   const int kWindowWidth = 123;
 103   const int kWindowHeight = 45;
 104   gfx::Rect bounds1(100, 200, kWindowWidth, kWindowHeight);
 105   gfx::Rect bounds2(300, 400, kWindowWidth, kWindowHeight);
 106   scoped_ptr<aura::Window> window1(CreateTestWindowWithDelegate(
 107       delegate1.get(), -1234, bounds1, root_window()));
 108   scoped_ptr<aura::Window> window2(CreateTestWindowWithDelegate(
 109       delegate2.get(), -5678, bounds2, root_window()));
 110
 111   // Send a mouse event to window1.
 112   gfx::Point point(101, 201);
 113   ui::MouseEvent event1(
 114       ui::ET_MOUSE_PRESSED, point, point, ui::EF_LEFT_MOUSE_BUTTON);
 115   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(&event1);
 116
 117   // Event was tested for non-client area for the target window.
 118   EXPECT_EQ(1, delegate1->non_client_count());
 119   EXPECT_EQ(0, delegate2->non_client_count());
 120   // The non-client component test was in local coordinates.
 121   EXPECT_EQ(gfx::Point(1, 1), delegate1->non_client_location());
 122   // Mouse event was received by target window.
 123   EXPECT_EQ(1, delegate1->mouse_event_count());
 124   EXPECT_EQ(0, delegate2->mouse_event_count());
 125   // Event was in local coordinates.
 126   EXPECT_EQ(gfx::Point(1, 1), delegate1->mouse_event_location());
 127   // Non-client flag was set.
 128   EXPECT_TRUE(delegate1->mouse_event_flags() & ui::EF_IS_NON_CLIENT);
 129 }
 130
 131 TEST_F(RootWindowTest, RepostEvent) {
 132   // Test RepostEvent in RootWindow. It only works for Mouse Press.
 133   EXPECT_FALSE(Env::GetInstance()->is_mouse_button_down());
 134   gfx::Point point(10, 10);
 135   ui::MouseEvent event(
 136       ui::ET_MOUSE_PRESSED, point, point, ui::EF_LEFT_MOUSE_BUTTON);
 137   root_window()->RepostEvent(event);
 138   RunAllPendingInMessageLoop();
 139   EXPECT_TRUE(Env::GetInstance()->is_mouse_button_down());
 140 }
 141
 142 // Check that we correctly track the state of the mouse buttons in response to
 143 // button press and release events.
 144 TEST_F(RootWindowTest, MouseButtonState) {
 145   EXPECT_FALSE(Env::GetInstance()->is_mouse_button_down());
 146
 147   gfx::Point location;
 148   scoped_ptr<ui::MouseEvent> event;
 149
 150   // Press the left button.
 151   event.reset(new ui::MouseEvent(
 152       ui::ET_MOUSE_PRESSED,
 153       location,
 154       location,
 155       ui::EF_LEFT_MOUSE_BUTTON));
 156   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(event.get());
 157   EXPECT_TRUE(Env::GetInstance()->is_mouse_button_down());
 158
 159   // Additionally press the right.
 160   event.reset(new ui::MouseEvent(
 161       ui::ET_MOUSE_PRESSED,
 162       location,
 163       location,
 164       ui::EF_LEFT_MOUSE_BUTTON | ui::EF_RIGHT_MOUSE_BUTTON));
 165   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(event.get());
 166   EXPECT_TRUE(Env::GetInstance()->is_mouse_button_down());
 167
 168   // Release the left button.
 169   event.reset(new ui::MouseEvent(
 170       ui::ET_MOUSE_RELEASED,
 171       location,
 172       location,
 173       ui::EF_RIGHT_MOUSE_BUTTON));
 174   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(event.get());
 175   EXPECT_TRUE(Env::GetInstance()->is_mouse_button_down());
 176
 177   // Release the right button.  We should ignore the Shift-is-down flag.
 178   event.reset(new ui::MouseEvent(
 179       ui::ET_MOUSE_RELEASED,
 180       location,
 181       location,
 182       ui::EF_SHIFT_DOWN));
 183   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(event.get());
 184   EXPECT_FALSE(Env::GetInstance()->is_mouse_button_down());
 185
 186   // Press the middle button.
 187   event.reset(new ui::MouseEvent(
 188       ui::ET_MOUSE_PRESSED,
 189       location,
 190       location,
 191       ui::EF_MIDDLE_MOUSE_BUTTON));
 192   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(event.get());
 193   EXPECT_TRUE(Env::GetInstance()->is_mouse_button_down());
 194 }
 195
 196 TEST_F(RootWindowTest, TranslatedEvent) {
 197   scoped_ptr<Window> w1(test::CreateTestWindowWithDelegate(NULL, 1,
 198       gfx::Rect(50, 50, 100, 100), root_window()));
 199
 200   gfx::Point origin(100, 100);
 201   ui::MouseEvent root(ui::ET_MOUSE_PRESSED, origin, origin, 0);
 202
 203   EXPECT_EQ("100,100", root.location().ToString());
 204   EXPECT_EQ("100,100", root.root_location().ToString());
 205
 206   ui::MouseEvent translated_event(
 207       root, static_cast<Window*>(root_window()), w1.get(),
 208       ui::ET_MOUSE_ENTERED, root.flags());
 209   EXPECT_EQ("50,50", translated_event.location().ToString());
 210   EXPECT_EQ("100,100", translated_event.root_location().ToString());
 211 }
 212
 213 namespace {
 214
 215 class TestEventClient : public client::EventClient {
 216  public:
 217   static const int kNonLockWindowId = 100;
 218   static const int kLockWindowId = 200;
 219
 220   explicit TestEventClient(RootWindow* root_window)
 221       : root_window_(root_window),
 222         lock_(false) {
 223     client::SetEventClient(root_window_, this);
 224     Window* lock_window =
 225         test::CreateTestWindowWithBounds(root_window_->bounds(), root_window_);
 226     lock_window->set_id(kLockWindowId);
 227     Window* non_lock_window =
 228         test::CreateTestWindowWithBounds(root_window_->bounds(), root_window_);
 229     non_lock_window->set_id(kNonLockWindowId);
 230   }
 231   virtual ~TestEventClient() {
 232     client::SetEventClient(root_window_, NULL);
 233   }
 234
 235   // Starts/stops locking. Locking prevents windows other than those inside
 236   // the lock container from receiving events, getting focus etc.
 237   void Lock() {
 238     lock_ = true;
 239   }
 240   void Unlock() {
 241     lock_ = false;
 242   }
 243
 244   Window* GetLockWindow() {
 245     return const_cast<Window*>(
 246         static_cast<const TestEventClient*>(this)->GetLockWindow());
 247   }
 248   const Window* GetLockWindow() const {
 249     return root_window_->GetChildById(kLockWindowId);
 250   }
 251   Window* GetNonLockWindow() {
 252     return root_window_->GetChildById(kNonLockWindowId);
 253   }
 254
 255  private:
 256   // Overridden from client::EventClient:
 257   virtual bool CanProcessEventsWithinSubtree(
 258       const Window* window) const OVERRIDE {
 259     return lock_ ?
 260         window->Contains(GetLockWindow()) || GetLockWindow()->Contains(window) :
 261         true;
 262   }
 263
 264   virtual ui::EventTarget* GetToplevelEventTarget() OVERRIDE {
 265     return NULL;
 266   }
 267
 268   RootWindow* root_window_;
 269   bool lock_;
 270
 271   DISALLOW_COPY_AND_ASSIGN(TestEventClient);
 272 };
 273
 274 }  // namespace
 275
 276 TEST_F(RootWindowTest, CanProcessEventsWithinSubtree) {
 277   TestEventClient client(root_window());
 278   test::TestWindowDelegate d;
 279
 280   test::TestEventHandler* nonlock_ef = new test::TestEventHandler;
 281   test::TestEventHandler* lock_ef = new test::TestEventHandler;
 282   client.GetNonLockWindow()->SetEventFilter(nonlock_ef);
 283   client.GetLockWindow()->SetEventFilter(lock_ef);
 284
 285   Window* w1 = test::CreateTestWindowWithBounds(gfx::Rect(10, 10, 20, 20),
 286                                                 client.GetNonLockWindow());
 287   w1->set_id(1);
 288   Window* w2 = test::CreateTestWindowWithBounds(gfx::Rect(30, 30, 20, 20),
 289                                                 client.GetNonLockWindow());
 290   w2->set_id(2);
 291   scoped_ptr<Window> w3(
 292       test::CreateTestWindowWithDelegate(&d, 3, gfx::Rect(30, 30, 20, 20),
 293                                          client.GetLockWindow()));
 294
 295   w1->Focus();
 296   EXPECT_TRUE(IsFocusedWindow(w1));
 297
 298   client.Lock();
 299
 300   // Since we're locked, the attempt to focus w2 will be ignored.
 301   w2->Focus();
 302   EXPECT_TRUE(IsFocusedWindow(w1));
 303   EXPECT_FALSE(IsFocusedWindow(w2));
 304
 305   {
 306     // Attempting to send a key event to w1 (not in the lock container) should
 307     // cause focus to be reset.
 308     test::EventGenerator generator(root_window());
 309     generator.PressKey(ui::VKEY_SPACE, 0);
 310     EXPECT_EQ(NULL, client::GetFocusClient(w1)->GetFocusedWindow());
 311   }
 312
 313   {
 314     // Events sent to a window not in the lock container will not be processed.
 315     // i.e. never sent to the non-lock container's event filter.
 316     test::EventGenerator generator(root_window(), w1);
 317     generator.PressLeftButton();
 318     EXPECT_EQ(0, nonlock_ef->num_mouse_events());
 319
 320     // Events sent to a window in the lock container will be processed.
 321     test::EventGenerator generator3(root_window(), w3.get());
 322     generator3.PressLeftButton();
 323     EXPECT_EQ(1, lock_ef->num_mouse_events());
 324   }
 325
 326   // Prevent w3 from being deleted by the hierarchy since its delegate is owned
 327   // by this scope.
 328   w3->parent()->RemoveChild(w3.get());
 329 }
 330
 331 TEST_F(RootWindowTest, IgnoreUnknownKeys) {
 332   test::TestEventHandler* filter = new ConsumeKeyHandler;
 333   root_window()->SetEventFilter(filter);  // passes ownership
 334
 335   ui::KeyEvent unknown_event(ui::ET_KEY_PRESSED, ui::VKEY_UNKNOWN, 0, false);
 336   EXPECT_FALSE(root_window()->AsRootWindowHostDelegate()->OnHostKeyEvent(
 337       &unknown_event));
 338   EXPECT_EQ(0, filter->num_key_events());
 339
 340   ui::KeyEvent known_event(ui::ET_KEY_PRESSED, ui::VKEY_A, 0, false);
 341   EXPECT_TRUE(root_window()->AsRootWindowHostDelegate()->OnHostKeyEvent(
 342       &known_event));
 343   EXPECT_EQ(1, filter->num_key_events());
 344 }
 345
 346 // Tests that touch-events that are beyond the bounds of the root-window do get
 347 // propagated to the event filters correctly with the root as the target.
 348 TEST_F(RootWindowTest, TouchEventsOutsideBounds) {
 349   test::TestEventHandler* filter = new test::TestEventHandler;
 350   root_window()->SetEventFilter(filter);  // passes ownership
 351
 352   gfx::Point position = root_window()->bounds().origin();
 353   position.Offset(-10, -10);
 354   ui::TouchEvent press(ui::ET_TOUCH_PRESSED, position, 0, base::TimeDelta());
 355   root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&press);
 356   EXPECT_EQ(1, filter->num_touch_events());
 357
 358   position = root_window()->bounds().origin();
 359   position.Offset(root_window()->bounds().width() + 10,
 360                   root_window()->bounds().height() + 10);
 361   ui::TouchEvent release(ui::ET_TOUCH_RELEASED, position, 0, base::TimeDelta());
 362   root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&release);
 363   EXPECT_EQ(2, filter->num_touch_events());
 364 }
 365
 366 // Tests that scroll events are dispatched correctly.
 367 TEST_F(RootWindowTest, ScrollEventDispatch) {
 368   base::TimeDelta now = ui::EventTimeForNow();
 369   test::TestEventHandler* filter = new test::TestEventHandler;
 370   root_window()->SetEventFilter(filter);
 371
 372   test::TestWindowDelegate delegate;
 373   scoped_ptr<Window> w1(CreateNormalWindow(1, root_window(), &delegate));
 374   w1->SetBounds(gfx::Rect(20, 20, 40, 40));
 375
 376   // A scroll event on the root-window itself is dispatched.
 377   ui::ScrollEvent scroll1(ui::ET_SCROLL,
 378                           gfx::Point(10, 10),
 379                           now,
 380                           0,
 381                           0, -10,
 382                           0, -10,
 383                           2);
 384   root_window()->AsRootWindowHostDelegate()->OnHostScrollEvent(&scroll1);
 385   EXPECT_EQ(1, filter->num_scroll_events());
 386
 387   // Scroll event on a window should be dispatched properly.
 388   ui::ScrollEvent scroll2(ui::ET_SCROLL,
 389                           gfx::Point(25, 30),
 390                           now,
 391                           0,
 392                           -10, 0,
 393                           -10, 0,
 394                           2);
 395   root_window()->AsRootWindowHostDelegate()->OnHostScrollEvent(&scroll2);
 396   EXPECT_EQ(2, filter->num_scroll_events());
 397 }
 398
 399 namespace {
 400
 401 // FilterFilter that tracks the types of events it's seen.
 402 class EventFilterRecorder : public ui::EventHandler {
 403  public:
 404   typedef std::vector<ui::EventType> Events;
 405   typedef std::vector<gfx::Point> MouseEventLocations;
 406
 407   EventFilterRecorder() {}
 408
 409   Events& events() { return events_; }
 410
 411   MouseEventLocations& mouse_locations() { return mouse_locations_; }
 412   gfx::Point mouse_location(int i) const { return mouse_locations_[i]; }
 413
 414   // ui::EventHandler overrides:
 415   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE {
 416     events_.push_back(event->type());
 417   }
 418
 419   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE {
 420     events_.push_back(event->type());
 421     mouse_locations_.push_back(event->location());
 422   }
 423
 424   virtual void OnScrollEvent(ui::ScrollEvent* event) OVERRIDE {
 425     events_.push_back(event->type());
 426   }
 427
 428   virtual void OnTouchEvent(ui::TouchEvent* event) OVERRIDE {
 429     events_.push_back(event->type());
 430   }
 431
 432   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE {
 433     events_.push_back(event->type());
 434   }
 435
 436  private:
 437   Events events_;
 438   MouseEventLocations mouse_locations_;
 439
 440   DISALLOW_COPY_AND_ASSIGN(EventFilterRecorder);
 441 };
 442
 443 // Converts an EventType to a string.
 444 std::string EventTypeToString(ui::EventType type) {
 445   switch (type) {
 446     case ui::ET_TOUCH_RELEASED:
 447       return "TOUCH_RELEASED";
 448
 449     case ui::ET_TOUCH_PRESSED:
 450       return "TOUCH_PRESSED";
 451
 452     case ui::ET_TOUCH_MOVED:
 453       return "TOUCH_MOVED";
 454
 455     case ui::ET_MOUSE_PRESSED:
 456       return "MOUSE_PRESSED";
 457
 458     case ui::ET_MOUSE_DRAGGED:
 459       return "MOUSE_DRAGGED";
 460
 461     case ui::ET_MOUSE_RELEASED:
 462       return "MOUSE_RELEASED";
 463
 464     case ui::ET_MOUSE_MOVED:
 465       return "MOUSE_MOVED";
 466
 467     case ui::ET_MOUSE_ENTERED:
 468       return "MOUSE_ENTERED";
 469
 470     case ui::ET_MOUSE_EXITED:
 471       return "MOUSE_EXITED";
 472
 473     case ui::ET_GESTURE_SCROLL_BEGIN:
 474       return "GESTURE_SCROLL_BEGIN";
 475
 476     case ui::ET_GESTURE_SCROLL_END:
 477       return "GESTURE_SCROLL_END";
 478
 479     case ui::ET_GESTURE_SCROLL_UPDATE:
 480       return "GESTURE_SCROLL_UPDATE";
 481
 482     case ui::ET_GESTURE_TAP:
 483       return "GESTURE_TAP";
 484
 485     case ui::ET_GESTURE_TAP_DOWN:
 486       return "GESTURE_TAP_DOWN";
 487
 488     case ui::ET_GESTURE_BEGIN:
 489       return "GESTURE_BEGIN";
 490
 491     case ui::ET_GESTURE_END:
 492       return "GESTURE_END";
 493
 494     default:
 495       break;
 496   }
 497   return "";
 498 }
 499
 500 std::string EventTypesToString(const EventFilterRecorder::Events& events) {
 501   std::string result;
 502   for (size_t i = 0; i < events.size(); ++i) {
 503     if (i != 0)
 504       result += " ";
 505     result += EventTypeToString(events[i]);
 506   }
 507   return result;
 508 }
 509
 510 }  // namespace
 511
 512 TEST_F(RootWindowTest, MouseMovesHeld) {
 513   EventFilterRecorder* filter = new EventFilterRecorder;
 514   root_window()->SetEventFilter(filter);  // passes ownership
 515
 516   test::TestWindowDelegate delegate;
 517   scoped_ptr<aura::Window> window(CreateTestWindowWithDelegate(
 518       &delegate, 1, gfx::Rect(0, 0, 100, 100), root_window()));
 519
 520   ui::MouseEvent mouse_move_event(ui::ET_MOUSE_MOVED, gfx::Point(0, 0),
 521                                   gfx::Point(0, 0), 0);
 522   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 523       &mouse_move_event);
 524   // Discard MOUSE_ENTER.
 525   filter->events().clear();
 526
 527   root_window()->HoldPointerMoves();
 528
 529   // Check that we don't immediately dispatch the MOUSE_DRAGGED event.
 530   ui::MouseEvent mouse_dragged_event(ui::ET_MOUSE_DRAGGED, gfx::Point(0, 0),
 531                                      gfx::Point(0, 0), 0);
 532   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 533       &mouse_dragged_event);
 534   EXPECT_TRUE(filter->events().empty());
 535
 536   // Check that we do dispatch the held MOUSE_DRAGGED event before another type
 537   // of event.
 538   ui::MouseEvent mouse_pressed_event(ui::ET_MOUSE_PRESSED, gfx::Point(0, 0),
 539                                      gfx::Point(0, 0), 0);
 540   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 541       &mouse_pressed_event);
 542   EXPECT_EQ("MOUSE_DRAGGED MOUSE_PRESSED",
 543             EventTypesToString(filter->events()));
 544   filter->events().clear();
 545
 546   // Check that we coalesce held MOUSE_DRAGGED events.
 547   ui::MouseEvent mouse_dragged_event2(ui::ET_MOUSE_DRAGGED, gfx::Point(1, 1),
 548                                       gfx::Point(1, 1), 0);
 549   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 550       &mouse_dragged_event);
 551   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 552       &mouse_dragged_event2);
 553   EXPECT_TRUE(filter->events().empty());
 554   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 555       &mouse_pressed_event);
 556   EXPECT_EQ("MOUSE_DRAGGED MOUSE_PRESSED",
 557             EventTypesToString(filter->events()));
 558   filter->events().clear();
 559
 560   // Check that on ReleasePointerMoves, held events are not dispatched
 561   // immediately, but posted instead.
 562   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 563       &mouse_dragged_event);
 564   root_window()->ReleasePointerMoves();
 565   EXPECT_TRUE(filter->events().empty());
 566   RunAllPendingInMessageLoop();
 567   EXPECT_EQ("MOUSE_DRAGGED", EventTypesToString(filter->events()));
 568   filter->events().clear();
 569
 570   // However if another message comes in before the dispatch,
 571   // the Check that on ReleasePointerMoves, held events are not dispatched
 572   // immediately, but posted instead.
 573   root_window()->HoldPointerMoves();
 574   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 575       &mouse_dragged_event);
 576   root_window()->ReleasePointerMoves();
 577   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 578       &mouse_pressed_event);
 579   EXPECT_EQ("MOUSE_DRAGGED MOUSE_PRESSED",
 580             EventTypesToString(filter->events()));
 581   filter->events().clear();
 582   RunAllPendingInMessageLoop();
 583   EXPECT_TRUE(filter->events().empty());
 584
 585   // Check that if the other message is another MOUSE_DRAGGED, we still coalesce
 586   // them.
 587   root_window()->HoldPointerMoves();
 588   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 589       &mouse_dragged_event);
 590   root_window()->ReleasePointerMoves();
 591   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(
 592       &mouse_dragged_event2);
 593   EXPECT_EQ("MOUSE_DRAGGED", EventTypesToString(filter->events()));
 594   filter->events().clear();
 595   RunAllPendingInMessageLoop();
 596   EXPECT_TRUE(filter->events().empty());
 597 }
 598
 599 TEST_F(RootWindowTest, TouchMovesHeld) {
 600   EventFilterRecorder* filter = new EventFilterRecorder;
 601   root_window()->SetEventFilter(filter);  // passes ownership
 602
 603   test::TestWindowDelegate delegate;
 604   scoped_ptr<aura::Window> window(CreateTestWindowWithDelegate(
 605       &delegate, 1, gfx::Rect(0, 0, 100, 100), root_window()));
 606
 607   // Starting the touch and throwing out the first few events, since the system
 608   // is going to generate synthetic mouse events that are not relevant to the
 609   // test.
 610   ui::TouchEvent touch_pressed_event(ui::ET_TOUCH_PRESSED, gfx::Point(0, 0),
 611                                      0, base::TimeDelta());
 612   root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(
 613       &touch_pressed_event);
 614   RunAllPendingInMessageLoop();
 615   filter->events().clear();
 616
 617   root_window()->HoldPointerMoves();
 618
 619   // Check that we don't immediately dispatch the TOUCH_MOVED event.
 620   ui::TouchEvent touch_moved_event(ui::ET_TOUCH_MOVED, gfx::Point(0, 0),
 621                                    0, base::TimeDelta());
 622   root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(
 623       &touch_moved_event);
 624   EXPECT_TRUE(filter->events().empty());
 625
 626   // Check that on ReleasePointerMoves, held events are not dispatched
 627   // immediately, but posted instead.
 628   root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(
 629       &touch_moved_event);
 630   root_window()->ReleasePointerMoves();
 631   EXPECT_TRUE(filter->events().empty());
 632   RunAllPendingInMessageLoop();
 633   EXPECT_EQ("TOUCH_MOVED", EventTypesToString(filter->events()));
 634   filter->events().clear();
 635
 636   // If another touch event occurs then the held touch should be dispatched
 637   // immediately before it.
 638   ui::TouchEvent touch_released_event(ui::ET_TOUCH_RELEASED, gfx::Point(0, 0),
 639                                       0, base::TimeDelta());
 640   filter->events().clear();
 641   root_window()->HoldPointerMoves();
 642   root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(
 643       &touch_moved_event);
 644   root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(
 645       &touch_released_event);
 646   EXPECT_EQ("TOUCH_MOVED TOUCH_RELEASED  GESTURE_END",
 647             EventTypesToString(filter->events()));
 648   filter->events().clear();
 649   root_window()->ReleasePointerMoves();
 650   RunAllPendingInMessageLoop();
 651   EXPECT_TRUE(filter->events().empty());
 652 }
 653
 654 // Tests that synthetic mouse events are ignored when mouse
 655 // events are disabled.
 656 TEST_F(RootWindowTest, DispatchSyntheticMouseEvents) {
 657   EventFilterRecorder* filter = new EventFilterRecorder;
 658   root_window()->SetEventFilter(filter);  // passes ownership
 659
 660   test::TestWindowDelegate delegate;
 661   scoped_ptr<aura::Window> window(CreateTestWindowWithDelegate(
 662       &delegate, 1234, gfx::Rect(5, 5, 100, 100), root_window()));
 663   window->Show();
 664   window->SetCapture();
 665
 666   test::TestCursorClient cursor_client(root_window());
 667
 668   // Dispatch a non-synthetic mouse event when mouse events are enabled.
 669   ui::MouseEvent mouse1(ui::ET_MOUSE_MOVED, gfx::Point(10, 10),
 670                         gfx::Point(10, 10), 0);
 671   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(&mouse1);
 672   EXPECT_FALSE(filter->events().empty());
 673   filter->events().clear();
 674
 675   // Dispatch a synthetic mouse event when mouse events are enabled.
 676   ui::MouseEvent mouse2(ui::ET_MOUSE_MOVED, gfx::Point(10, 10),
 677                         gfx::Point(10, 10), ui::EF_IS_SYNTHESIZED);
 678   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(&mouse2);
 679   EXPECT_FALSE(filter->events().empty());
 680   filter->events().clear();
 681
 682   // Dispatch a synthetic mouse event when mouse events are disabled.
 683   cursor_client.DisableMouseEvents();
 684   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(&mouse2);
 685   EXPECT_TRUE(filter->events().empty());
 686 }
 687
 688 // Tests that a mouse exit is dispatched to the last known cursor location
 689 // when the cursor becomes invisible.
 690 TEST_F(RootWindowTest, DispatchMouseExitWhenCursorHidden) {
 691   EventFilterRecorder* filter = new EventFilterRecorder;
 692   root_window()->SetEventFilter(filter);  // passes ownership
 693
 694   test::TestWindowDelegate delegate;
 695   gfx::Point window_origin(7, 18);
 696   scoped_ptr<aura::Window> window(CreateTestWindowWithDelegate(
 697       &delegate, 1234, gfx::Rect(window_origin,
 698       gfx::Size(100, 100)), root_window()));
 699   window->Show();
 700
 701   // Dispatch a mouse move event into the window.
 702   gfx::Point mouse_location(gfx::Point(15, 25));
 703   ui::MouseEvent mouse1(ui::ET_MOUSE_MOVED, mouse_location,
 704                         mouse_location, 0);
 705   EXPECT_TRUE(filter->events().empty());
 706   root_window()->AsRootWindowHostDelegate()->OnHostMouseEvent(&mouse1);
 707   EXPECT_FALSE(filter->events().empty());
 708   filter->events().clear();
 709
 710   // Hide the cursor and verify a mouse exit was dispatched.
 711   root_window()->OnCursorVisibilityChanged(false);
 712   EXPECT_FALSE(filter->events().empty());
 713   EXPECT_EQ("MOUSE_EXITED", EventTypesToString(filter->events()));
 714
 715   // Verify the mouse exit was dispatched at the correct location
 716   // (in the correct coordinate space).
 717   int translated_x = mouse_location.x() - window_origin.x();
 718   int translated_y = mouse_location.y() - window_origin.y();
 719   gfx::Point translated_point(translated_x, translated_y);
 720   EXPECT_EQ(filter->mouse_location(0).ToString(), translated_point.ToString());
 721 }
 722
 723 class DeletingEventFilter : public ui::EventHandler {
 724  public:
 725   DeletingEventFilter()
 726       : delete_during_pre_handle_(false) {}
 727   virtual ~DeletingEventFilter() {}
 728
 729   void Reset(bool delete_during_pre_handle) {
 730     delete_during_pre_handle_ = delete_during_pre_handle;
 731   }
 732
 733  private:
 734   // Overridden from ui::EventHandler:
 735   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE {
 736     if (delete_during_pre_handle_)
 737       delete event->target();
 738   }
 739
 740   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE {
 741     if (delete_during_pre_handle_)
 742       delete event->target();
 743   }
 744
 745   bool delete_during_pre_handle_;
 746
 747   DISALLOW_COPY_AND_ASSIGN(DeletingEventFilter);
 748 };
 749
 750 class DeletingWindowDelegate : public test::TestWindowDelegate {
 751  public:
 752   DeletingWindowDelegate()
 753       : window_(NULL),
 754         delete_during_handle_(false),
 755         got_event_(false) {}
 756   virtual ~DeletingWindowDelegate() {}
 757
 758   void Reset(Window* window, bool delete_during_handle) {
 759     window_ = window;
 760     delete_during_handle_ = delete_during_handle;
 761     got_event_ = false;
 762   }
 763   bool got_event() const { return got_event_; }
 764
 765  private:
 766   // Overridden from WindowDelegate:
 767   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE {
 768     if (delete_during_handle_)
 769       delete window_;
 770     got_event_ = true;
 771   }
 772
 773   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE {
 774     if (delete_during_handle_)
 775       delete window_;
 776     got_event_ = true;
 777   }
 778
 779   Window* window_;
 780   bool delete_during_handle_;
 781   bool got_event_;
 782
 783   DISALLOW_COPY_AND_ASSIGN(DeletingWindowDelegate);
 784 };
 785
 786 TEST_F(RootWindowTest, DeleteWindowDuringDispatch) {
 787   // Verifies that we can delete a window during each phase of event handling.
 788   // Deleting the window should not cause a crash, only prevent further
 789   // processing from occurring.
 790   scoped_ptr<Window> w1(CreateNormalWindow(1, root_window(), NULL));
 791   DeletingWindowDelegate d11;
 792   Window* w11 = CreateNormalWindow(11, w1.get(), &d11);
 793   WindowTracker tracker;
 794   DeletingEventFilter* w1_filter = new DeletingEventFilter;
 795   w1->SetEventFilter(w1_filter);
 796   client::GetFocusClient(w1.get())->FocusWindow(w11);
 797
 798   test::EventGenerator generator(root_window(), w11);
 799
 800   // First up, no one deletes anything.
 801   tracker.Add(w11);
 802   d11.Reset(w11, false);
 803
 804   generator.PressLeftButton();
 805   EXPECT_TRUE(tracker.Contains(w11));
 806   EXPECT_TRUE(d11.got_event());
 807   generator.ReleaseLeftButton();
 808
 809   // Delegate deletes w11. This will prevent the post-handle step from applying.
 810   w1_filter->Reset(false);
 811   d11.Reset(w11, true);
 812   generator.PressKey(ui::VKEY_A, 0);
 813   EXPECT_FALSE(tracker.Contains(w11));
 814   EXPECT_TRUE(d11.got_event());
 815
 816   // Pre-handle step deletes w11. This will prevent the delegate and the post-
 817   // handle steps from applying.
 818   w11 = CreateNormalWindow(11, w1.get(), &d11);
 819   w1_filter->Reset(true);
 820   d11.Reset(w11, false);
 821   generator.PressLeftButton();
 822   EXPECT_FALSE(tracker.Contains(w11));
 823   EXPECT_FALSE(d11.got_event());
 824 }
 825
 826 namespace {
 827
 828 // A window delegate that detaches the parent of the target's parent window when
 829 // it receives a tap event.
 830 class DetachesParentOnTapDelegate : public test::TestWindowDelegate {
 831  public:
 832   DetachesParentOnTapDelegate() {}
 833   virtual ~DetachesParentOnTapDelegate() {}
 834
 835  private:
 836   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE {
 837     if (event->type() == ui::ET_GESTURE_TAP_DOWN) {
 838       event->SetHandled();
 839       return;
 840     }
 841
 842     if (event->type() == ui::ET_GESTURE_TAP) {
 843       Window* parent = static_cast<Window*>(event->target())->parent();
 844       parent->parent()->RemoveChild(parent);
 845       event->SetHandled();
 846     }
 847   }
 848
 849   DISALLOW_COPY_AND_ASSIGN(DetachesParentOnTapDelegate);
 850 };
 851
 852 }  // namespace
 853
 854 // Tests that the gesture recognizer is reset for all child windows when a
 855 // window hides. No expectations, just checks that the test does not crash.
 856 TEST_F(RootWindowTest, GestureRecognizerResetsTargetWhenParentHides) {
 857   scoped_ptr<Window> w1(CreateNormalWindow(1, root_window(), NULL));
 858   DetachesParentOnTapDelegate delegate;
 859   scoped_ptr<Window> parent(CreateNormalWindow(22, w1.get(), NULL));
 860   Window* child = CreateNormalWindow(11, parent.get(), &delegate);
 861   test::EventGenerator generator(root_window(), child);
 862   generator.GestureTapAt(gfx::Point(40, 40));
 863 }
 864
 865 namespace {
 866
 867 // A window delegate that processes nested gestures on tap.
 868 class NestedGestureDelegate : public test::TestWindowDelegate {
 869  public:
 870   NestedGestureDelegate(test::EventGenerator* generator,
 871                         const gfx::Point tap_location)
 872       : generator_(generator),
 873         tap_location_(tap_location),
 874         gesture_end_count_(0) {}
 875   virtual ~NestedGestureDelegate() {}
 876
 877   int gesture_end_count() const { return gesture_end_count_; }
 878
 879  private:
 880   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE {
 881     switch (event->type()) {
 882       case ui::ET_GESTURE_TAP_DOWN:
 883         event->SetHandled();
 884         break;
 885       case ui::ET_GESTURE_TAP:
 886         if (generator_)
 887           generator_->GestureTapAt(tap_location_);
 888         event->SetHandled();
 889         break;
 890       case ui::ET_GESTURE_END:
 891         ++gesture_end_count_;
 892         break;
 893       default:
 894         break;
 895     }
 896   }
 897
 898   test::EventGenerator* generator_;
 899   const gfx::Point tap_location_;
 900   int gesture_end_count_;
 901   DISALLOW_COPY_AND_ASSIGN(NestedGestureDelegate);
 902 };
 903
 904 }  // namespace
 905
 906 // Tests that gesture end is delivered after nested gesture processing.
 907 TEST_F(RootWindowTest, GestureEndDeliveredAfterNestedGestures) {
 908   NestedGestureDelegate d1(NULL, gfx::Point());
 909   scoped_ptr<Window> w1(CreateNormalWindow(1, root_window(), &d1));
 910   w1->SetBounds(gfx::Rect(0, 0, 100, 100));
 911
 912   test::EventGenerator nested_generator(root_window(), w1.get());
 913   NestedGestureDelegate d2(&nested_generator, w1->bounds().CenterPoint());
 914   scoped_ptr<Window> w2(CreateNormalWindow(1, root_window(), &d2));
 915   w2->SetBounds(gfx::Rect(100, 0, 100, 100));
 916
 917   // Tap on w2 which triggers nested gestures for w1.
 918   test::EventGenerator generator(root_window(), w2.get());
 919   generator.GestureTapAt(w2->bounds().CenterPoint());
 920
 921   // Both windows should get their gesture end events.
 922   EXPECT_EQ(1, d1.gesture_end_count());
 923   EXPECT_EQ(1, d2.gesture_end_count());
 924 }
 925
 926 // Tests whether we can repost the Tap down gesture event.
 927 TEST_F(RootWindowTest, RepostTapdownGestureTest) {
 928   EventFilterRecorder* filter = new EventFilterRecorder;
 929   root_window()->SetEventFilter(filter);  // passes ownership
 930
 931   test::TestWindowDelegate delegate;
 932   scoped_ptr<aura::Window> window(CreateTestWindowWithDelegate(
 933       &delegate, 1, gfx::Rect(0, 0, 100, 100), root_window()));
 934
 935   ui::GestureEventDetails details(ui::ET_GESTURE_TAP_DOWN, 0.0f, 0.0f);
 936   gfx::Point point(10, 10);
 937   ui::GestureEvent event(
 938       ui::ET_GESTURE_TAP_DOWN,
 939       point.x(),
 940       point.y(),
 941       0,
 942       ui::EventTimeForNow(),
 943       details,
 944       0);
 945   root_window()->RepostEvent(event);
 946   RunAllPendingInMessageLoop();
 947   EXPECT_TRUE(EventTypesToString(filter->events()).find("GESTURE_TAP_DOWN") !=
 948               std::string::npos);
 949   filter->events().clear();
 950 }
 951
 952 // This class inherits from the EventFilterRecorder class which provides a
 953 // facility to record events. This class additionally provides a facility to
 954 // repost the ET_GESTURE_TAP_DOWN gesture to the target window and records
 955 // events after that.
 956 class RepostGestureEventRecorder : public EventFilterRecorder {
 957  public:
 958   RepostGestureEventRecorder(aura::Window* repost_source,
 959                              aura::Window* repost_target)
 960       : repost_source_(repost_source),
 961         repost_target_(repost_target),
 962         reposted_(false) {}
 963
 964   virtual ~RepostGestureEventRecorder() {}
 965
 966   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE {
 967     EXPECT_EQ(reposted_ ? repost_target_ : repost_source_, event->target());
 968     if (event->type() == ui::ET_GESTURE_TAP_DOWN) {
 969       if (!reposted_) {
 970         EXPECT_NE(repost_target_, event->target());
 971         reposted_ = true;
 972         events().clear();
 973         repost_target_->GetRootWindow()->RepostEvent(*event);
 974         // Ensure that the reposted gesture event above goes to the
 975         // repost_target_;
 976         repost_source_->GetRootWindow()->RemoveChild(repost_source_);
 977         return;
 978       }
 979     }
 980     EventFilterRecorder::OnGestureEvent(event);
 981   }
 982
 983   // Ignore mouse events as they don't fire at all times. This causes
 984   // the GestureRepostEventOrder test to fail randomly.
 985   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE {}
 986
 987  private:
 988   aura::Window* repost_source_;
 989   aura::Window* repost_target_;
 990   // set to true if we reposted the ET_GESTURE_TAP_DOWN event.
 991   bool reposted_;
 992   DISALLOW_COPY_AND_ASSIGN(RepostGestureEventRecorder);
 993 };
 994
 995 // Tests whether events which are generated after the reposted gesture event
 996 // are received after that. In this case the scroll sequence events should
 997 // be received after the reposted gesture event.
 998 TEST_F(RootWindowTest, GestureRepostEventOrder) {
 999   // Expected events at the end for the repost_target window defined below.
1000   const char kExpectedTargetEvents[] = "GESTURE_BEGIN GESTURE_TAP_DOWN "
1001     "TOUCH_RELEASED TOUCH_PRESSED GESTURE_BEGIN GESTURE_TAP_DOWN TOUCH_MOVED "
1002     " GESTURE_SCROLL_BEGIN GESTURE_SCROLL_UPDATE TOUCH_MOVED "
1003     "GESTURE_SCROLL_UPDATE TOUCH_MOVED GESTURE_SCROLL_UPDATE TOUCH_RELEASED "
1004     "GESTURE_SCROLL_END GESTURE_END";
1005   // We create two windows.
1006   // The first window (repost_source) is the one to which the initial tap
1007   // gesture is sent. It reposts this event to the second window
1008   // (repost_target).
1009   // We then generate the scroll sequence for repost_target and look for two
1010   // ET_GESTURE_TAP_DOWN events in the event list at the end.
1011   test::TestWindowDelegate delegate;
1012   scoped_ptr<aura::Window> repost_target(CreateTestWindowWithDelegate(
1013       &delegate, 1, gfx::Rect(0, 0, 100, 100), root_window()));
1014
1015   scoped_ptr<aura::Window> repost_source(CreateTestWindowWithDelegate(
1016       &delegate, 1, gfx::Rect(0, 0, 50, 50), root_window()));
1017
1018   RepostGestureEventRecorder* repost_event_recorder =
1019       new RepostGestureEventRecorder(repost_source.get(), repost_target.get());
1020   root_window()->SetEventFilter(repost_event_recorder);  // passes ownership
1021
1022   // Generate a tap down gesture for the repost_source. This will be reposted
1023   // to repost_target.
1024   test::EventGenerator repost_generator(root_window(), repost_source.get());
1025   repost_generator.GestureTapAt(gfx::Point(40, 40));
1026   RunAllPendingInMessageLoop();
1027
1028   test::EventGenerator scroll_generator(root_window(), repost_target.get());
1029   scroll_generator.GestureScrollSequence(
1030       gfx::Point(80, 80),
1031       gfx::Point(100, 100),
1032       base::TimeDelta::FromMilliseconds(100),
1033       3);
1034   RunAllPendingInMessageLoop();
1035
1036   int tap_down_count = 0;
1037   for (size_t i = 0; i < repost_event_recorder->events().size(); ++i) {
1038     if (repost_event_recorder->events()[i] == ui::ET_GESTURE_TAP_DOWN)
1039       ++tap_down_count;
1040   }
1041
1042   // We expect two tap down events. One from the repost and the other one from
1043   // the scroll sequence posted above.
1044   EXPECT_EQ(tap_down_count, 2);
1045
1046   EXPECT_EQ(kExpectedTargetEvents,
1047             EventTypesToString(repost_event_recorder->events()));
1048 }
1049
1050 class OnMouseExitDeletingEventFilter : public EventFilterRecorder {
1051  public:
1052   OnMouseExitDeletingEventFilter() : window_to_delete_(NULL) {}
1053   virtual ~OnMouseExitDeletingEventFilter() {}
1054
1055   void set_window_to_delete(Window* window_to_delete) {
1056     window_to_delete_ = window_to_delete;
1057   }
1058
1059  private:
1060   // Overridden from ui::EventHandler:
1061   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE {
1062     EventFilterRecorder::OnMouseEvent(event);
1063     if (window_to_delete_) {
1064       delete window_to_delete_;
1065       window_to_delete_ = NULL;
1066     }
1067   }
1068
1069   Window* window_to_delete_;
1070
1071   DISALLOW_COPY_AND_ASSIGN(OnMouseExitDeletingEventFilter);
1072 };
1073
1074 // Tests that RootWindow drops mouse-moved event that is supposed to be sent to
1075 // a child, but the child is destroyed because of the synthesized mouse-exit
1076 // event generated on the previous mouse_moved_handler_.
1077 TEST_F(RootWindowTest, DeleteWindowDuringMouseMovedDispatch) {
1078   // Create window 1 and set its event filter. Window 1 will take ownership of
1079   // the event filter.
1080   scoped_ptr<Window> w1(CreateNormalWindow(1, root_window(), NULL));
1081   OnMouseExitDeletingEventFilter* w1_filter =
1082       new OnMouseExitDeletingEventFilter();
1083   w1->SetEventFilter(w1_filter);
1084   w1->SetBounds(gfx::Rect(20, 20, 60, 60));
1085   EXPECT_EQ(NULL, root_window()->mouse_moved_handler());
1086
1087   test::EventGenerator generator(root_window(), w1.get());
1088
1089   // Move mouse over window 1 to set it as the |mouse_moved_handler_| for the
1090   // root window.
1091   generator.MoveMouseTo(51, 51);
1092   EXPECT_EQ(w1.get(), root_window()->mouse_moved_handler());
1093
1094   // Create window 2 under the mouse cursor and stack it above window 1.
1095   Window* w2 = CreateNormalWindow(2, root_window(), NULL);
1096   w2->SetBounds(gfx::Rect(30, 30, 40, 40));
1097   root_window()->StackChildAbove(w2, w1.get());
1098
1099   // Set window 2 as the window that is to be deleted when a mouse-exited event
1100   // happens on window 1.
1101   w1_filter->set_window_to_delete(w2);
1102
1103   // Move mosue over window 2. This should generate a mouse-exited event for
1104   // window 1 resulting in deletion of window 2. The original mouse-moved event
1105   // that was targeted to window 2 should be dropped since window 2 is
1106   // destroyed. This test passes if no crash happens.
1107   generator.MoveMouseTo(52, 52);
1108   EXPECT_EQ(NULL, root_window()->mouse_moved_handler());
1109
1110   // Check events received by window 1.
1111   EXPECT_EQ("MOUSE_ENTERED MOUSE_MOVED MOUSE_EXITED",
1112             EventTypesToString(w1_filter->events()));
1113 }
1114
1115 }  // namespace aura