Roll src/third_party/skia 78cff13:01f3891
[chromium-blink-merge.git] / ui / events / x / events_x_unittest.cc
blob53a87062720ecdd59ced03fb31091e5a50ee3192
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.
5 #include <cstring>
6 #include <set>
8 #include <X11/extensions/XInput2.h>
9 #include <X11/Xlib.h>
10 #include <X11/Xutil.h>
11 #include <X11/XKBlib.h>
13 // Generically-named #defines from Xlib that conflict with symbols in GTest.
14 #undef Bool
15 #undef None
17 #include "base/memory/scoped_ptr.h"
18 #include "testing/gtest/include/gtest/gtest.h"
19 #include "ui/events/devices/x11/device_data_manager_x11.h"
20 #include "ui/events/devices/x11/touch_factory_x11.h"
21 #include "ui/events/event.h"
22 #include "ui/events/event_constants.h"
23 #include "ui/events/event_utils.h"
24 #include "ui/events/test/events_test_utils.h"
25 #include "ui/events/test/events_test_utils_x11.h"
26 #include "ui/gfx/geometry/point.h"
28 namespace ui {
30 namespace {
32 // Initializes the passed-in Xlib event.
33 void InitButtonEvent(XEvent* event,
34 bool is_press,
35 const gfx::Point& location,
36 int button,
37 int state) {
38 memset(event, 0, sizeof(*event));
40 // We don't bother setting fields that the event code doesn't use, such as
41 // x_root/y_root and window/root/subwindow.
42 XButtonEvent* button_event = &(event->xbutton);
43 button_event->type = is_press ? ButtonPress : ButtonRelease;
44 button_event->x = location.x();
45 button_event->y = location.y();
46 button_event->button = button;
47 button_event->state = state;
50 #if !defined(OS_CHROMEOS)
51 // Initializes the passed-in Xlib event.
52 void InitKeyEvent(Display* display,
53 XEvent* event,
54 bool is_press,
55 int keycode,
56 int state) {
57 memset(event, 0, sizeof(*event));
59 // We don't bother setting fields that the event code doesn't use, such as
60 // x_root/y_root and window/root/subwindow.
61 XKeyEvent* key_event = &(event->xkey);
62 key_event->display = display;
63 key_event->type = is_press ? KeyPress : KeyRelease;
64 key_event->keycode = keycode;
65 key_event->state = state;
67 #endif
69 } // namespace
71 class EventsXTest : public testing::Test {
72 public:
73 EventsXTest() {}
74 ~EventsXTest() override {}
76 void SetUp() override {
77 DeviceDataManagerX11::CreateInstance();
78 ui::TouchFactory::GetInstance()->ResetForTest();
80 private:
81 DISALLOW_COPY_AND_ASSIGN(EventsXTest);
84 TEST_F(EventsXTest, ButtonEvents) {
85 XEvent event;
86 gfx::Point location(5, 10);
87 gfx::Vector2d offset;
89 InitButtonEvent(&event, true, location, 1, 0);
90 EXPECT_EQ(ui::ET_MOUSE_PRESSED, ui::EventTypeFromNative(&event));
91 EXPECT_EQ(ui::EF_LEFT_MOUSE_BUTTON, ui::EventFlagsFromNative(&event));
92 EXPECT_EQ(ui::EF_LEFT_MOUSE_BUTTON,
93 ui::GetChangedMouseButtonFlagsFromNative(&event));
94 EXPECT_EQ(location, ui::EventLocationFromNative(&event));
96 InitButtonEvent(&event, true, location, 2, Button1Mask | ShiftMask);
97 EXPECT_EQ(ui::ET_MOUSE_PRESSED, ui::EventTypeFromNative(&event));
98 EXPECT_EQ(ui::EF_LEFT_MOUSE_BUTTON | ui::EF_MIDDLE_MOUSE_BUTTON |
99 ui::EF_SHIFT_DOWN,
100 ui::EventFlagsFromNative(&event));
101 EXPECT_EQ(ui::EF_MIDDLE_MOUSE_BUTTON,
102 ui::GetChangedMouseButtonFlagsFromNative(&event));
103 EXPECT_EQ(location, ui::EventLocationFromNative(&event));
105 InitButtonEvent(&event, false, location, 3, 0);
106 EXPECT_EQ(ui::ET_MOUSE_RELEASED, ui::EventTypeFromNative(&event));
107 EXPECT_EQ(ui::EF_RIGHT_MOUSE_BUTTON, ui::EventFlagsFromNative(&event));
108 EXPECT_EQ(ui::EF_RIGHT_MOUSE_BUTTON,
109 ui::GetChangedMouseButtonFlagsFromNative(&event));
110 EXPECT_EQ(location, ui::EventLocationFromNative(&event));
112 // Scroll up.
113 InitButtonEvent(&event, true, location, 4, 0);
114 EXPECT_EQ(ui::ET_MOUSEWHEEL, ui::EventTypeFromNative(&event));
115 EXPECT_EQ(0, ui::EventFlagsFromNative(&event));
116 EXPECT_EQ(ui::EF_NONE, ui::GetChangedMouseButtonFlagsFromNative(&event));
117 EXPECT_EQ(location, ui::EventLocationFromNative(&event));
118 offset = ui::GetMouseWheelOffset(&event);
119 EXPECT_GT(offset.y(), 0);
120 EXPECT_EQ(0, offset.x());
122 // Scroll down.
123 InitButtonEvent(&event, true, location, 5, 0);
124 EXPECT_EQ(ui::ET_MOUSEWHEEL, ui::EventTypeFromNative(&event));
125 EXPECT_EQ(0, ui::EventFlagsFromNative(&event));
126 EXPECT_EQ(ui::EF_NONE, ui::GetChangedMouseButtonFlagsFromNative(&event));
127 EXPECT_EQ(location, ui::EventLocationFromNative(&event));
128 offset = ui::GetMouseWheelOffset(&event);
129 EXPECT_LT(offset.y(), 0);
130 EXPECT_EQ(0, offset.x());
132 // Scroll left.
133 InitButtonEvent(&event, true, location, 6, 0);
134 EXPECT_EQ(ui::ET_MOUSEWHEEL, ui::EventTypeFromNative(&event));
135 EXPECT_EQ(0, ui::EventFlagsFromNative(&event));
136 EXPECT_EQ(ui::EF_NONE, ui::GetChangedMouseButtonFlagsFromNative(&event));
137 EXPECT_EQ(location, ui::EventLocationFromNative(&event));
138 offset = ui::GetMouseWheelOffset(&event);
139 EXPECT_EQ(0, offset.y());
140 EXPECT_GT(offset.x(), 0);
142 // Scroll right.
143 InitButtonEvent(&event, true, location, 7, 0);
144 EXPECT_EQ(ui::ET_MOUSEWHEEL, ui::EventTypeFromNative(&event));
145 EXPECT_EQ(0, ui::EventFlagsFromNative(&event));
146 EXPECT_EQ(ui::EF_NONE, ui::GetChangedMouseButtonFlagsFromNative(&event));
147 EXPECT_EQ(location, ui::EventLocationFromNative(&event));
148 offset = ui::GetMouseWheelOffset(&event);
149 EXPECT_EQ(0, offset.y());
150 EXPECT_LT(offset.x(), 0);
152 // TODO(derat): Test XInput code.
155 TEST_F(EventsXTest, AvoidExtraEventsOnWheelRelease) {
156 XEvent event;
157 gfx::Point location(5, 10);
159 InitButtonEvent(&event, true, location, 4, 0);
160 EXPECT_EQ(ui::ET_MOUSEWHEEL, ui::EventTypeFromNative(&event));
162 // We should return ET_UNKNOWN for the release event instead of returning
163 // ET_MOUSEWHEEL; otherwise we'll scroll twice for each scrollwheel step.
164 InitButtonEvent(&event, false, location, 4, 0);
165 EXPECT_EQ(ui::ET_UNKNOWN, ui::EventTypeFromNative(&event));
167 // TODO(derat): Test XInput code.
170 TEST_F(EventsXTest, EnterLeaveEvent) {
171 XEvent event;
172 event.xcrossing.type = EnterNotify;
173 event.xcrossing.x = 10;
174 event.xcrossing.y = 20;
175 event.xcrossing.x_root = 110;
176 event.xcrossing.y_root = 120;
178 // Mouse enter events are converted to mouse move events to be consistent with
179 // the way views handle mouse enter. See comments for EnterNotify case in
180 // ui::EventTypeFromNative for more details.
181 EXPECT_EQ(ui::ET_MOUSE_MOVED, ui::EventTypeFromNative(&event));
182 EXPECT_EQ("10,20", ui::EventLocationFromNative(&event).ToString());
183 EXPECT_EQ("110,120", ui::EventSystemLocationFromNative(&event).ToString());
185 event.xcrossing.type = LeaveNotify;
186 event.xcrossing.x = 30;
187 event.xcrossing.y = 40;
188 event.xcrossing.x_root = 230;
189 event.xcrossing.y_root = 240;
190 EXPECT_EQ(ui::ET_MOUSE_EXITED, ui::EventTypeFromNative(&event));
191 EXPECT_EQ("30,40", ui::EventLocationFromNative(&event).ToString());
192 EXPECT_EQ("230,240", ui::EventSystemLocationFromNative(&event).ToString());
195 TEST_F(EventsXTest, ClickCount) {
196 XEvent event;
197 gfx::Point location(5, 10);
199 base::TimeDelta time_stamp = base::TimeDelta::FromMilliseconds(1);
200 for (int i = 1; i <= 3; ++i) {
201 InitButtonEvent(&event, true, location, 1, 0);
203 event.xbutton.time = time_stamp.InMilliseconds();
204 MouseEvent mouseev(&event);
205 EXPECT_EQ(ui::ET_MOUSE_PRESSED, mouseev.type());
206 EXPECT_EQ(i, mouseev.GetClickCount());
209 InitButtonEvent(&event, false, location, 1, 0);
211 event.xbutton.time = time_stamp.InMilliseconds();
212 MouseEvent mouseev(&event);
213 EXPECT_EQ(ui::ET_MOUSE_RELEASED, mouseev.type());
214 EXPECT_EQ(i, mouseev.GetClickCount());
216 time_stamp += base::TimeDelta::FromMilliseconds(1);
220 TEST_F(EventsXTest, TouchEventBasic) {
221 std::vector<int> devices;
222 devices.push_back(0);
223 ui::SetUpTouchDevicesForTest(devices);
224 std::vector<Valuator> valuators;
226 // Init touch begin with tracking id 5, touch id 0.
227 valuators.push_back(Valuator(DeviceDataManagerX11::DT_TOUCH_MAJOR, 20));
228 valuators.push_back(
229 Valuator(DeviceDataManagerX11::DT_TOUCH_ORIENTATION, 0.3f));
230 valuators.push_back(Valuator(DeviceDataManagerX11::DT_TOUCH_PRESSURE, 100));
231 ui::ScopedXI2Event scoped_xevent;
232 scoped_xevent.InitTouchEvent(
233 0, XI_TouchBegin, 5, gfx::Point(10, 10), valuators);
234 EXPECT_EQ(ui::ET_TOUCH_PRESSED, ui::EventTypeFromNative(scoped_xevent));
235 EXPECT_EQ("10,10", ui::EventLocationFromNative(scoped_xevent).ToString());
236 EXPECT_EQ(GetTouchId(scoped_xevent), 0);
237 EXPECT_EQ(GetTouchRadiusX(scoped_xevent), 10);
238 EXPECT_FLOAT_EQ(GetTouchAngle(scoped_xevent), 0.15f);
239 EXPECT_FLOAT_EQ(GetTouchForce(scoped_xevent), 0.1f);
241 // Touch update, with new orientation info.
242 valuators.clear();
243 valuators.push_back(
244 Valuator(DeviceDataManagerX11::DT_TOUCH_ORIENTATION, 0.5f));
245 scoped_xevent.InitTouchEvent(
246 0, XI_TouchUpdate, 5, gfx::Point(20, 20), valuators);
247 EXPECT_EQ(ui::ET_TOUCH_MOVED, ui::EventTypeFromNative(scoped_xevent));
248 EXPECT_EQ("20,20", ui::EventLocationFromNative(scoped_xevent).ToString());
249 EXPECT_EQ(GetTouchId(scoped_xevent), 0);
250 EXPECT_EQ(GetTouchRadiusX(scoped_xevent), 10);
251 EXPECT_FLOAT_EQ(GetTouchAngle(scoped_xevent), 0.25f);
252 EXPECT_FLOAT_EQ(GetTouchForce(scoped_xevent), 0.1f);
254 // Another touch with tracking id 6, touch id 1.
255 valuators.clear();
256 valuators.push_back(Valuator(DeviceDataManagerX11::DT_TOUCH_MAJOR, 100));
257 valuators.push_back(Valuator(
258 DeviceDataManagerX11::DT_TOUCH_ORIENTATION, 0.9f));
259 valuators.push_back(Valuator(DeviceDataManagerX11::DT_TOUCH_PRESSURE, 500));
260 scoped_xevent.InitTouchEvent(
261 0, XI_TouchBegin, 6, gfx::Point(200, 200), valuators);
262 EXPECT_EQ(ui::ET_TOUCH_PRESSED, ui::EventTypeFromNative(scoped_xevent));
263 EXPECT_EQ("200,200", ui::EventLocationFromNative(scoped_xevent).ToString());
264 EXPECT_EQ(GetTouchId(scoped_xevent), 1);
265 EXPECT_EQ(GetTouchRadiusX(scoped_xevent), 50);
266 EXPECT_FLOAT_EQ(GetTouchAngle(scoped_xevent), 0.45f);
267 EXPECT_FLOAT_EQ(GetTouchForce(scoped_xevent), 0.5f);
269 // Touch with tracking id 5 should have old radius/angle value and new pressue
270 // value.
271 valuators.clear();
272 valuators.push_back(Valuator(DeviceDataManagerX11::DT_TOUCH_PRESSURE, 50));
273 scoped_xevent.InitTouchEvent(
274 0, XI_TouchEnd, 5, gfx::Point(30, 30), valuators);
275 EXPECT_EQ(ui::ET_TOUCH_RELEASED, ui::EventTypeFromNative(scoped_xevent));
276 EXPECT_EQ("30,30", ui::EventLocationFromNative(scoped_xevent).ToString());
277 EXPECT_EQ(GetTouchId(scoped_xevent), 0);
278 EXPECT_EQ(GetTouchRadiusX(scoped_xevent), 10);
279 EXPECT_FLOAT_EQ(GetTouchAngle(scoped_xevent), 0.25f);
280 EXPECT_FLOAT_EQ(GetTouchForce(scoped_xevent), 0.05f);
282 // Touch with tracking id 6 should have old angle/pressure value and new
283 // radius value.
284 valuators.clear();
285 valuators.push_back(Valuator(DeviceDataManagerX11::DT_TOUCH_MAJOR, 50));
286 scoped_xevent.InitTouchEvent(
287 0, XI_TouchEnd, 6, gfx::Point(200, 200), valuators);
288 EXPECT_EQ(ui::ET_TOUCH_RELEASED, ui::EventTypeFromNative(scoped_xevent));
289 EXPECT_EQ("200,200", ui::EventLocationFromNative(scoped_xevent).ToString());
290 EXPECT_EQ(GetTouchId(scoped_xevent), 1);
291 EXPECT_EQ(GetTouchRadiusX(scoped_xevent), 25);
292 EXPECT_FLOAT_EQ(GetTouchAngle(scoped_xevent), 0.45f);
293 EXPECT_FLOAT_EQ(GetTouchForce(scoped_xevent), 0.5f);
296 int GetTouchIdForTrackingId(uint32 tracking_id) {
297 int slot = 0;
298 bool success =
299 TouchFactory::GetInstance()->QuerySlotForTrackingID(tracking_id, &slot);
300 if (success)
301 return slot;
302 return -1;
305 TEST_F(EventsXTest, TouchEventNotRemovingFromNativeMapping) {
306 std::vector<int> devices;
307 devices.push_back(0);
308 ui::SetUpTouchDevicesForTest(devices);
309 std::vector<Valuator> valuators;
311 const int kTrackingId = 5;
313 // Two touch presses with the same tracking id.
314 ui::ScopedXI2Event xpress0;
315 xpress0.InitTouchEvent(
316 0, XI_TouchBegin, kTrackingId, gfx::Point(10, 10), valuators);
317 scoped_ptr<ui::TouchEvent> upress0(new ui::TouchEvent(xpress0));
318 EXPECT_EQ(0, GetTouchIdForTrackingId(kTrackingId));
320 ui::ScopedXI2Event xpress1;
321 xpress1.InitTouchEvent(
322 0, XI_TouchBegin, kTrackingId, gfx::Point(20, 20), valuators);
323 ui::TouchEvent upress1(xpress1);
324 EXPECT_EQ(0, GetTouchIdForTrackingId(kTrackingId));
326 // The first touch release shouldn't clear the mapping from the
327 // tracking id.
328 ui::ScopedXI2Event xrelease0;
329 xrelease0.InitTouchEvent(
330 0, XI_TouchEnd, kTrackingId, gfx::Point(10, 10), valuators);
332 ui::TouchEvent urelease0(xrelease0);
333 urelease0.set_should_remove_native_touch_id_mapping(false);
335 EXPECT_EQ(0, GetTouchIdForTrackingId(kTrackingId));
337 // The second touch release should clear the mapping from the
338 // tracking id.
339 ui::ScopedXI2Event xrelease1;
340 xrelease1.InitTouchEvent(
341 0, XI_TouchEnd, kTrackingId, gfx::Point(10, 10), valuators);
343 ui::TouchEvent urelease1(xrelease1);
345 EXPECT_EQ(-1, GetTouchIdForTrackingId(kTrackingId));
348 // Copied events should not remove native touch id mappings, as this causes a
349 // crash (crbug.com/467102). Copied events do not contain a proper
350 // base::NativeEvent and should not attempt to access it.
351 TEST_F(EventsXTest, CopiedTouchEventNotRemovingFromNativeMapping) {
352 std::vector<int> devices;
353 devices.push_back(0);
354 ui::SetUpTouchDevicesForTest(devices);
355 std::vector<Valuator> valuators;
357 // Create a release event which has a native touch id mapping.
358 ui::ScopedXI2Event xrelease0;
359 xrelease0.InitTouchEvent(0, XI_TouchEnd, 0, gfx::Point(10, 10), valuators);
360 ui::TouchEvent urelease0(xrelease0);
362 // When the copy is destructed it should not attempt to remove the mapping.
363 // Exiting this scope should not cause a crash.
364 ui::TouchEvent copy = urelease0;
368 // Verifies that the type of events from a disabled keyboard is ET_UNKNOWN, but
369 // that an exception list of keys can still be processed.
370 TEST_F(EventsXTest, DisableKeyboard) {
371 DeviceDataManagerX11* device_data_manager =
372 static_cast<DeviceDataManagerX11*>(
373 DeviceDataManager::GetInstance());
374 int blocked_device_id = 1;
375 int other_device_id = 2;
376 int master_device_id = 3;
377 device_data_manager->DisableDevice(blocked_device_id);
379 scoped_ptr<std::set<KeyboardCode> > excepted_keys(new std::set<KeyboardCode>);
380 excepted_keys->insert(VKEY_B);
381 device_data_manager->SetDisabledKeyboardAllowedKeys(excepted_keys.Pass());
383 ScopedXI2Event xev;
384 // A is not allowed on the blocked keyboard, and should return ET_UNKNOWN.
385 xev.InitGenericKeyEvent(master_device_id,
386 blocked_device_id,
387 ui::ET_KEY_PRESSED,
388 ui::VKEY_A,
390 EXPECT_EQ(ui::ET_UNKNOWN, ui::EventTypeFromNative(xev));
392 // The B key is allowed as an exception, and should return KEY_PRESSED.
393 xev.InitGenericKeyEvent(master_device_id,
394 blocked_device_id,
395 ui::ET_KEY_PRESSED,
396 ui::VKEY_B,
398 EXPECT_EQ(ui::ET_KEY_PRESSED, ui::EventTypeFromNative(xev));
400 // Both A and B are allowed on an unblocked keyboard device.
401 xev.InitGenericKeyEvent(master_device_id,
402 other_device_id,
403 ui::ET_KEY_PRESSED,
404 ui::VKEY_A,
406 EXPECT_EQ(ui::ET_KEY_PRESSED, ui::EventTypeFromNative(xev));
407 xev.InitGenericKeyEvent(master_device_id,
408 other_device_id,
409 ui::ET_KEY_PRESSED,
410 ui::VKEY_B,
412 EXPECT_EQ(ui::ET_KEY_PRESSED, ui::EventTypeFromNative(xev));
414 device_data_manager->EnableDevice(blocked_device_id);
415 device_data_manager->SetDisabledKeyboardAllowedKeys(nullptr);
417 // A key returns KEY_PRESSED as per usual now that keyboard was re-enabled.
418 xev.InitGenericKeyEvent(master_device_id,
419 blocked_device_id,
420 ui::ET_KEY_PRESSED,
421 ui::VKEY_A,
423 EXPECT_EQ(ui::ET_KEY_PRESSED, ui::EventTypeFromNative(xev));
426 // Verifies that the type of events from a disabled mouse is ET_UNKNOWN.
427 TEST_F(EventsXTest, DisableMouse) {
428 DeviceDataManagerX11* device_data_manager =
429 static_cast<DeviceDataManagerX11*>(
430 DeviceDataManager::GetInstance());
431 int blocked_device_id = 1;
432 int other_device_id = 2;
433 std::vector<int> device_list;
434 device_list.push_back(blocked_device_id);
435 device_list.push_back(other_device_id);
436 TouchFactory::GetInstance()->SetPointerDeviceForTest(device_list);
438 device_data_manager->DisableDevice(blocked_device_id);
440 ScopedXI2Event xev;
441 xev.InitGenericButtonEvent(blocked_device_id, ET_MOUSE_PRESSED, gfx::Point(),
442 EF_LEFT_MOUSE_BUTTON);
443 EXPECT_EQ(ui::ET_UNKNOWN, ui::EventTypeFromNative(xev));
445 xev.InitGenericButtonEvent(other_device_id, ET_MOUSE_PRESSED, gfx::Point(),
446 EF_LEFT_MOUSE_BUTTON);
447 EXPECT_EQ(ui::ET_MOUSE_PRESSED, ui::EventTypeFromNative(xev));
449 device_data_manager->EnableDevice(blocked_device_id);
451 xev.InitGenericButtonEvent(blocked_device_id, ET_MOUSE_PRESSED, gfx::Point(),
452 EF_LEFT_MOUSE_BUTTON);
453 EXPECT_EQ(ui::ET_MOUSE_PRESSED, ui::EventTypeFromNative(xev));
456 #if !defined(OS_CHROMEOS)
457 TEST_F(EventsXTest, ImeFabricatedKeyEvents) {
458 Display* display = gfx::GetXDisplay();
460 unsigned int state_to_be_fabricated[] = {
461 0, ShiftMask, LockMask, ShiftMask | LockMask,
463 for (size_t i = 0; i < arraysize(state_to_be_fabricated); ++i) {
464 unsigned int state = state_to_be_fabricated[i];
465 for (int is_char = 0; is_char < 2; ++is_char) {
466 XEvent x_event;
467 InitKeyEvent(display, &x_event, true, 0, state);
468 ui::KeyEvent key_event(&x_event);
469 if (is_char) {
470 KeyEventTestApi test_event(&key_event);
471 test_event.set_is_char(true);
473 EXPECT_TRUE(key_event.flags() & ui::EF_IME_FABRICATED_KEY);
477 unsigned int state_to_be_not_fabricated[] = {
478 ControlMask, Mod1Mask, Mod2Mask, ShiftMask | ControlMask,
480 for (size_t i = 0; i < arraysize(state_to_be_not_fabricated); ++i) {
481 unsigned int state = state_to_be_not_fabricated[i];
482 for (int is_char = 0; is_char < 2; ++is_char) {
483 XEvent x_event;
484 InitKeyEvent(display, &x_event, true, 0, state);
485 ui::KeyEvent key_event(&x_event);
486 if (is_char) {
487 KeyEventTestApi test_event(&key_event);
488 test_event.set_is_char(true);
490 EXPECT_FALSE(key_event.flags() & ui::EF_IME_FABRICATED_KEY);
494 #endif
496 TEST_F(EventsXTest, IgnoresMotionEventForMouseWheelScroll) {
497 int device_id = 1;
498 std::vector<int> devices;
499 devices.push_back(device_id);
500 ui::SetUpPointerDevicesForTest(devices);
502 ScopedXI2Event xev;
503 xev.InitScrollEvent(device_id, 1, 2, 3, 4, 1);
504 // We shouldn't produce a mouse move event on a mouse wheel
505 // scroll. These events are only produced for some mice.
506 EXPECT_EQ(ui::ET_UNKNOWN, ui::EventTypeFromNative(xev));
509 } // namespace ui