test/pointer.c

   1 /*
   2  * Copyright © 2013 Red Hat, Inc.
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and
   5  * its documentation for any purpose is hereby granted without fee, provided
   6  * that the above copyright notice appear in all copies and that both that
   7  * copyright notice and this permission notice appear in supporting
   8  * documentation, and that the name of the copyright holders not be used in
   9  * advertising or publicity pertaining to distribution of the software
  10  * without specific, written prior permission.  The copyright holders make
  11  * no representations about the suitability of this software for any
  12  * purpose.  It is provided "as is" without express or implied warranty.
  13  *
  14  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
  15  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  16  * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
  17  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  18  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
  19  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  20  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  21  */
  22
  23 #include <config.h>
  24
  25 #include <stdio.h>
  26 #include <check.h>
  27 #include <errno.h>
  28 #include <fcntl.h>
  29 #include <libinput.h>
  30 #include <math.h>
  31 #include <unistd.h>
  32
  33 #include "libinput-util.h"
  34 #include "litest.h"
  35
  36 static void
  37 test_relative_event(struct litest_device *dev, int dx, int dy)
  38 {
  39         struct libinput *li = dev->libinput;
  40         struct libinput_event *event;
  41         struct libinput_event_pointer *ptrev;
  42         double ev_dx, ev_dy;
  43         double expected_dir;
  44         double expected_length;
  45         double actual_dir;
  46         double actual_length;
  47
  48         /* Send two deltas, as the first one may be eaten up by an
  49          * acceleration filter. */
  50         litest_event(dev, EV_REL, REL_X, dx);
  51         litest_event(dev, EV_REL, REL_Y, dy);
  52         litest_event(dev, EV_SYN, SYN_REPORT, 0);
  53         litest_event(dev, EV_REL, REL_X, dx);
  54         litest_event(dev, EV_REL, REL_Y, dy);
  55         litest_event(dev, EV_SYN, SYN_REPORT, 0);
  56
  57         libinput_dispatch(li);
  58
  59         event = libinput_get_event(li);
  60         ck_assert(event != NULL);
  61         ck_assert_int_eq(libinput_event_get_type(event), LIBINPUT_EVENT_POINTER_MOTION);
  62
  63         ptrev = libinput_event_get_pointer_event(event);
  64         ck_assert(ptrev != NULL);
  65
  66         expected_length = sqrt(dx*dx + dy*dy);
  67         expected_dir = atan2(dx, dy);
  68
  69         ev_dx = li_fixed_to_double(libinput_event_pointer_get_dx(ptrev));
  70         ev_dy = li_fixed_to_double(libinput_event_pointer_get_dy(ptrev));
  71         actual_length = sqrt(ev_dx*ev_dx + ev_dy*ev_dy);
  72         actual_dir = atan2(ev_dx, ev_dy);
  73
  74         /* Check the length of the motion vector (tolerate 1.0 indifference). */
  75         ck_assert(fabs(expected_length - actual_length) < 1.0);
  76
  77         /* Check the direction of the motion vector (tolerate 2π/4 radians
  78          * indifference). */
  79         ck_assert(fabs(expected_dir - actual_dir) < M_PI_2);
  80
  81         libinput_event_destroy(event);
  82
  83         litest_drain_events(dev->libinput);
  84 }
  85
  86 START_TEST(pointer_motion_relative)
  87 {
  88         struct litest_device *dev = litest_current_device();
  89
  90         litest_drain_events(dev->libinput);
  91
  92         test_relative_event(dev, 1, 0);
  93         test_relative_event(dev, 1, 1);
  94         test_relative_event(dev, 1, -1);
  95         test_relative_event(dev, 0, 1);
  96
  97         test_relative_event(dev, -1, 0);
  98         test_relative_event(dev, -1, 1);
  99         test_relative_event(dev, -1, -1);
 100         test_relative_event(dev, 0, -1);
 101 }
 102 END_TEST
 103
 104 static void
 105 test_button_event(struct litest_device *dev, int button, int state)
 106 {
 107         struct libinput *li = dev->libinput;
 108         struct libinput_event *event;
 109         struct libinput_event_pointer *ptrev;
 110
 111         litest_event(dev, EV_KEY, button, state);
 112         litest_event(dev, EV_SYN, SYN_REPORT, 0);
 113
 114         libinput_dispatch(li);
 115
 116         event = libinput_get_event(li);
 117         ck_assert(event != NULL);
 118         ck_assert_int_eq(libinput_event_get_type(event), LIBINPUT_EVENT_POINTER_BUTTON);
 119
 120         ptrev = libinput_event_get_pointer_event(event);
 121         ck_assert(ptrev != NULL);
 122         ck_assert_int_eq(libinput_event_pointer_get_button(ptrev), button);
 123         ck_assert_int_eq(libinput_event_pointer_get_button_state(ptrev),
 124                          state ?
 125                                 LIBINPUT_POINTER_BUTTON_STATE_PRESSED :
 126                                 LIBINPUT_POINTER_BUTTON_STATE_RELEASED);
 127         libinput_event_destroy(event);
 128 }
 129
 130 START_TEST(pointer_button)
 131 {
 132         struct litest_device *dev = litest_current_device();
 133
 134         litest_drain_events(dev->libinput);
 135
 136         test_button_event(dev, BTN_LEFT, 1);
 137         test_button_event(dev, BTN_LEFT, 0);
 138
 139         /* press it twice for good measure */
 140         test_button_event(dev, BTN_LEFT, 1);
 141         test_button_event(dev, BTN_LEFT, 0);
 142
 143         if (libevdev_has_event_code(dev->evdev, EV_KEY, BTN_RIGHT)) {
 144                 test_button_event(dev, BTN_RIGHT, 1);
 145                 test_button_event(dev, BTN_RIGHT, 0);
 146         }
 147
 148         if (libevdev_has_event_code(dev->evdev, EV_KEY, BTN_MIDDLE)) {
 149                 test_button_event(dev, BTN_MIDDLE, 1);
 150                 test_button_event(dev, BTN_MIDDLE, 0);
 151         }
 152 }
 153 END_TEST
 154
 155 static void
 156 test_wheel_event(struct litest_device *dev, int which, int amount)
 157 {
 158         struct libinput *li = dev->libinput;
 159         struct libinput_event *event;
 160         struct libinput_event_pointer *ptrev;
 161
 162         /* the current evdev implementation scales the scroll wheel events
 163            up by a factor 10 */
 164         const int scroll_step = 10;
 165         int expected = amount * scroll_step;
 166
 167         /* mouse scroll wheels are 'upside down' */
 168         if (which == REL_WHEEL)
 169                 amount *= -1;
 170         litest_event(dev, EV_REL, which, amount);
 171         litest_event(dev, EV_SYN, SYN_REPORT, 0);
 172
 173         libinput_dispatch(li);
 174
 175         event = libinput_get_event(li);
 176         ck_assert(event != NULL);
 177         ck_assert_int_eq(libinput_event_get_type(event),
 178                           LIBINPUT_EVENT_POINTER_AXIS);
 179
 180         ptrev = libinput_event_get_pointer_event(event);
 181         ck_assert(ptrev != NULL);
 182         ck_assert_int_eq(libinput_event_pointer_get_axis(ptrev),
 183                          which == REL_WHEEL ?
 184                                 LIBINPUT_POINTER_AXIS_VERTICAL_SCROLL :
 185                                 LIBINPUT_POINTER_AXIS_HORIZONTAL_SCROLL);
 186         ck_assert_int_eq(libinput_event_pointer_get_axis_value(ptrev),
 187                          li_fixed_from_int(expected));
 188         libinput_event_destroy(event);
 189 }
 190
 191 START_TEST(pointer_scroll_wheel)
 192 {
 193         struct litest_device *dev = litest_current_device();
 194
 195         litest_drain_events(dev->libinput);
 196
 197         test_wheel_event(dev, REL_WHEEL, -1);
 198         test_wheel_event(dev, REL_WHEEL, 1);
 199
 200         test_wheel_event(dev, REL_WHEEL, -5);
 201         test_wheel_event(dev, REL_WHEEL, 6);
 202
 203         if (libevdev_has_event_code(dev->evdev, EV_REL, REL_HWHEEL)) {
 204                 test_wheel_event(dev, REL_HWHEEL, -1);
 205                 test_wheel_event(dev, REL_HWHEEL, 1);
 206
 207                 test_wheel_event(dev, REL_HWHEEL, -5);
 208                 test_wheel_event(dev, REL_HWHEEL, 6);
 209         }
 210 }
 211 END_TEST
 212
 213 START_TEST(pointer_seat_button_count)
 214 {
 215         const int num_devices = 4;
 216         struct litest_device *devices[num_devices];
 217         struct libinput *libinput;
 218         struct libinput_event *ev;
 219         struct libinput_event_pointer *tev;
 220         int i;
 221         int seat_button_count;
 222         int expected_seat_button_count = 0;
 223         char device_name[255];
 224
 225         libinput = litest_create_context();
 226         for (i = 0; i < num_devices; ++i) {
 227                 sprintf(device_name, "Generic mouse (%d)", i);
 228                 devices[i] = litest_add_device_with_overrides(libinput,
 229                                                               LITEST_MOUSE,
 230                                                               device_name,
 231                                                               NULL, NULL, NULL);
 232         }
 233
 234         for (i = 0; i < num_devices; ++i)
 235                 litest_button_click(devices[i], BTN_LEFT, true);
 236
 237         libinput_dispatch(libinput);
 238         while ((ev = libinput_get_event(libinput))) {
 239                 if (libinput_event_get_type(ev) !=
 240                     LIBINPUT_EVENT_POINTER_BUTTON) {
 241                         libinput_event_destroy(ev);
 242                         libinput_dispatch(libinput);
 243                         continue;
 244                 }
 245
 246                 tev = libinput_event_get_pointer_event(ev);
 247                 ck_assert_notnull(tev);
 248                 ck_assert_int_eq(libinput_event_pointer_get_button(tev),
 249                                  BTN_LEFT);
 250                 ck_assert_int_eq(libinput_event_pointer_get_button_state(tev),
 251                                  LIBINPUT_POINTER_BUTTON_STATE_PRESSED);
 252
 253                 ++expected_seat_button_count;
 254                 seat_button_count =
 255                         libinput_event_pointer_get_seat_button_count(tev);
 256                 ck_assert_int_eq(expected_seat_button_count, seat_button_count);
 257
 258                 libinput_event_destroy(ev);
 259                 libinput_dispatch(libinput);
 260         }
 261
 262         ck_assert_int_eq(seat_button_count, num_devices);
 263
 264         for (i = 0; i < num_devices; ++i)
 265                 litest_button_click(devices[i], BTN_LEFT, false);
 266
 267         libinput_dispatch(libinput);
 268         while ((ev = libinput_get_event(libinput))) {
 269                 if (libinput_event_get_type(ev) !=
 270                     LIBINPUT_EVENT_POINTER_BUTTON) {
 271                         libinput_event_destroy(ev);
 272                         libinput_dispatch(libinput);
 273                         continue;
 274                 }
 275
 276                 tev = libinput_event_get_pointer_event(ev);
 277                 ck_assert_notnull(tev);
 278                 ck_assert_int_eq(libinput_event_pointer_get_button(tev),
 279                                  BTN_LEFT);
 280                 ck_assert_int_eq(libinput_event_pointer_get_button_state(tev),
 281                                  LIBINPUT_POINTER_BUTTON_STATE_RELEASED);
 282
 283                 --expected_seat_button_count;
 284                 seat_button_count =
 285                         libinput_event_pointer_get_seat_button_count(tev);
 286                 ck_assert_int_eq(expected_seat_button_count, seat_button_count);
 287
 288                 libinput_event_destroy(ev);
 289                 libinput_dispatch(libinput);
 290         }
 291
 292         ck_assert_int_eq(seat_button_count, 0);
 293
 294         for (i = 0; i < num_devices; ++i)
 295                 litest_delete_device(devices[i]);
 296         libinput_destroy(libinput);
 297 }
 298 END_TEST
 299
 300 int main (int argc, char **argv) {
 301
 302         litest_add("pointer:motion", pointer_motion_relative, LITEST_POINTER, LITEST_ANY);
 303         litest_add("pointer:button", pointer_button, LITEST_BUTTON, LITEST_CLICKPAD);
 304         litest_add("pointer:scroll", pointer_scroll_wheel, LITEST_WHEEL, LITEST_ANY);
 305         litest_add_no_device("pointer:seat button count", pointer_seat_button_count);
 306
 307         return litest_run(argc, argv);
 308 }