src/input.c

   1 /*
   2  * Copyright © 2013 Intel Corporation
   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 <stdlib.h>
  26 #include <stdint.h>
  27 #include <string.h>
  28 #include <sys/mman.h>
  29 #include <assert.h>
  30 #include <unistd.h>
  31 #include <fcntl.h>
  32 #include <limits.h>
  33
  34 #include "../shared/os-compatibility.h"
  35 #include "compositor.h"
  36
  37 static void
  38 empty_region(pixman_region32_t *region)
  39 {
  40         pixman_region32_fini(region);
  41         pixman_region32_init(region);
  42 }
  43
  44 static void unbind_resource(struct wl_resource *resource)
  45 {
  46         wl_list_remove(wl_resource_get_link(resource));
  47 }
  48
  49 WL_EXPORT void
  50 weston_seat_repick(struct weston_seat *seat)
  51 {
  52         const struct weston_pointer *pointer = seat->pointer;
  53
  54         if (pointer == NULL)
  55                 return;
  56
  57         pointer->grab->interface->focus(seat->pointer->grab);
  58 }
  59
  60 static void
  61 weston_compositor_idle_inhibit(struct weston_compositor *compositor)
  62 {
  63         weston_compositor_wake(compositor);
  64         compositor->idle_inhibit++;
  65 }
  66
  67 static void
  68 weston_compositor_idle_release(struct weston_compositor *compositor)
  69 {
  70         compositor->idle_inhibit--;
  71         weston_compositor_wake(compositor);
  72 }
  73
  74 static void
  75 pointer_focus_view_destroyed(struct wl_listener *listener, void *data)
  76 {
  77         struct weston_pointer *pointer =
  78                 container_of(listener, struct weston_pointer,
  79                              focus_view_listener);
  80
  81         weston_pointer_set_focus(pointer, NULL, 0, 0);
  82 }
  83
  84 static void
  85 pointer_focus_resource_destroyed(struct wl_listener *listener, void *data)
  86 {
  87         struct weston_pointer *pointer =
  88                 container_of(listener, struct weston_pointer,
  89                              focus_resource_listener);
  90
  91         weston_pointer_set_focus(pointer, NULL, 0, 0);
  92 }
  93
  94 static void
  95 keyboard_focus_resource_destroyed(struct wl_listener *listener, void *data)
  96 {
  97         struct weston_keyboard *keyboard =
  98                 container_of(listener, struct weston_keyboard,
  99                              focus_resource_listener);
 100
 101         weston_keyboard_set_focus(keyboard, NULL);
 102 }
 103
 104 static void
 105 touch_focus_view_destroyed(struct wl_listener *listener, void *data)
 106 {
 107         struct weston_touch *touch =
 108                 container_of(listener, struct weston_touch,
 109                              focus_view_listener);
 110
 111         weston_touch_set_focus(touch->seat, NULL);
 112 }
 113
 114 static void
 115 touch_focus_resource_destroyed(struct wl_listener *listener, void *data)
 116 {
 117         struct weston_touch *touch =
 118                 container_of(listener, struct weston_touch,
 119                              focus_resource_listener);
 120
 121         weston_touch_set_focus(touch->seat, NULL);
 122 }
 123
 124 static void
 125 move_resources(struct wl_list *destination, struct wl_list *source)
 126 {
 127         wl_list_insert_list(destination, source);
 128         wl_list_init(source);
 129 }
 130
 131 static void
 132 move_resources_for_client(struct wl_list *destination,
 133                           struct wl_list *source,
 134                           struct wl_client *client)
 135 {
 136         struct wl_resource *resource, *tmp;
 137         wl_resource_for_each_safe(resource, tmp, source) {
 138                 if (wl_resource_get_client(resource) == client) {
 139                         wl_list_remove(wl_resource_get_link(resource));
 140                         wl_list_insert(destination,
 141                                        wl_resource_get_link(resource));
 142                 }
 143         }
 144 }
 145
 146 static void
 147 default_grab_pointer_focus(struct weston_pointer_grab *grab)
 148 {
 149         struct weston_pointer *pointer = grab->pointer;
 150         struct weston_view *view;
 151         wl_fixed_t sx, sy;
 152
 153         if (pointer->button_count > 0)
 154                 return;
 155
 156         view = weston_compositor_pick_view(pointer->seat->compositor,
 157                                            pointer->x, pointer->y,
 158                                            &sx, &sy);
 159
 160         if (pointer->focus != view || pointer->sx != sx || pointer->sy != sy)
 161                 weston_pointer_set_focus(pointer, view, sx, sy);
 162 }
 163
 164 static void
 165 default_grab_pointer_motion(struct weston_pointer_grab *grab, uint32_t time,
 166                             wl_fixed_t x, wl_fixed_t y)
 167 {
 168         struct weston_pointer *pointer = grab->pointer;
 169         struct wl_list *resource_list;
 170         struct wl_resource *resource;
 171
 172         if (pointer->focus)
 173                 weston_view_from_global_fixed(pointer->focus, x, y,
 174                                               &pointer->sx, &pointer->sy);
 175
 176         weston_pointer_move(pointer, x, y);
 177
 178         resource_list = &pointer->focus_resource_list;
 179         wl_resource_for_each(resource, resource_list) {
 180                 wl_pointer_send_motion(resource, time,
 181                                        pointer->sx, pointer->sy);
 182         }
 183 }
 184
 185 static void
 186 default_grab_pointer_button(struct weston_pointer_grab *grab,
 187                             uint32_t time, uint32_t button, uint32_t state_w)
 188 {
 189         struct weston_pointer *pointer = grab->pointer;
 190         struct weston_compositor *compositor = pointer->seat->compositor;
 191         struct weston_view *view;
 192         struct wl_resource *resource;
 193         uint32_t serial;
 194         enum wl_pointer_button_state state = state_w;
 195         struct wl_display *display = compositor->wl_display;
 196         wl_fixed_t sx, sy;
 197         struct wl_list *resource_list;
 198
 199         resource_list = &pointer->focus_resource_list;
 200         if (!wl_list_empty(resource_list)) {
 201                 serial = wl_display_next_serial(display);
 202                 wl_resource_for_each(resource, resource_list)
 203                         wl_pointer_send_button(resource,
 204                                                serial,
 205                                                time,
 206                                                button,
 207                                                state_w);
 208         }
 209
 210         if (pointer->button_count == 0 &&
 211             state == WL_POINTER_BUTTON_STATE_RELEASED) {
 212                 view = weston_compositor_pick_view(compositor,
 213                                                    pointer->x, pointer->y,
 214                                                    &sx, &sy);
 215
 216                 weston_pointer_set_focus(pointer, view, sx, sy);
 217         }
 218 }
 219
 220 static void
 221 default_grab_pointer_cancel(struct weston_pointer_grab *grab)
 222 {
 223 }
 224
 225 static const struct weston_pointer_grab_interface
 226                                 default_pointer_grab_interface = {
 227         default_grab_pointer_focus,
 228         default_grab_pointer_motion,
 229         default_grab_pointer_button,
 230         default_grab_pointer_cancel,
 231 };
 232
 233 static void
 234 default_grab_touch_down(struct weston_touch_grab *grab, uint32_t time,
 235                         int touch_id, wl_fixed_t sx, wl_fixed_t sy)
 236 {
 237         struct weston_touch *touch = grab->touch;
 238         struct wl_display *display = touch->seat->compositor->wl_display;
 239         uint32_t serial;
 240         struct wl_resource *resource;
 241         struct wl_list *resource_list;
 242
 243         resource_list = &touch->focus_resource_list;
 244
 245         if (!wl_list_empty(resource_list) && touch->focus) {
 246                 serial = wl_display_next_serial(display);
 247                 wl_resource_for_each(resource, resource_list)
 248                                 wl_touch_send_down(resource, serial, time,
 249                                                    touch->focus->surface->resource,
 250                                                    touch_id, sx, sy);
 251         }
 252 }
 253
 254 static void
 255 default_grab_touch_up(struct weston_touch_grab *grab,
 256                       uint32_t time, int touch_id)
 257 {
 258         struct weston_touch *touch = grab->touch;
 259         struct wl_display *display = touch->seat->compositor->wl_display;
 260         uint32_t serial;
 261         struct wl_resource *resource;
 262         struct wl_list *resource_list;
 263
 264         resource_list = &touch->focus_resource_list;
 265
 266         if (!wl_list_empty(resource_list)) {
 267                 serial = wl_display_next_serial(display);
 268                 wl_resource_for_each(resource, resource_list)
 269                         wl_touch_send_up(resource, serial, time, touch_id);
 270         }
 271 }
 272
 273 static void
 274 default_grab_touch_motion(struct weston_touch_grab *grab, uint32_t time,
 275                           int touch_id, wl_fixed_t sx, wl_fixed_t sy)
 276 {
 277         struct weston_touch *touch = grab->touch;
 278         struct wl_resource *resource;
 279         struct wl_list *resource_list;
 280
 281         resource_list = &touch->focus_resource_list;
 282
 283         wl_resource_for_each(resource, resource_list) {
 284                 wl_touch_send_motion(resource, time,
 285                                      touch_id, sx, sy);
 286         }
 287 }
 288
 289 static void
 290 default_grab_touch_frame(struct weston_touch_grab *grab)
 291 {
 292         struct wl_resource *resource;
 293
 294         wl_resource_for_each(resource, &grab->touch->focus_resource_list)
 295                 wl_touch_send_frame(resource);
 296 }
 297
 298 static void
 299 default_grab_touch_cancel(struct weston_touch_grab *grab)
 300 {
 301 }
 302
 303 static const struct weston_touch_grab_interface default_touch_grab_interface = {
 304         default_grab_touch_down,
 305         default_grab_touch_up,
 306         default_grab_touch_motion,
 307         default_grab_touch_frame,
 308         default_grab_touch_cancel,
 309 };
 310
 311 static void
 312 default_grab_keyboard_key(struct weston_keyboard_grab *grab,
 313                           uint32_t time, uint32_t key, uint32_t state)
 314 {
 315         struct weston_keyboard *keyboard = grab->keyboard;
 316         struct wl_resource *resource;
 317         struct wl_display *display = keyboard->seat->compositor->wl_display;
 318         uint32_t serial;
 319         struct wl_list *resource_list;
 320
 321         resource_list = &keyboard->focus_resource_list;
 322         if (!wl_list_empty(resource_list)) {
 323                 serial = wl_display_next_serial(display);
 324                 wl_resource_for_each(resource, resource_list)
 325                         wl_keyboard_send_key(resource,
 326                                              serial,
 327                                              time,
 328                                              key,
 329                                              state);
 330         }
 331 }
 332
 333 static void
 334 send_modifiers_to_resource(struct weston_keyboard *keyboard,
 335                            struct wl_resource *resource,
 336                            uint32_t serial)
 337 {
 338         wl_keyboard_send_modifiers(resource,
 339                                    serial,
 340                                    keyboard->modifiers.mods_depressed,
 341                                    keyboard->modifiers.mods_latched,
 342                                    keyboard->modifiers.mods_locked,
 343                                    keyboard->modifiers.group);
 344 }
 345
 346 static void
 347 send_modifiers_to_client_in_list(struct wl_client *client,
 348                                  struct wl_list *list,
 349                                  uint32_t serial,
 350                                  struct weston_keyboard *keyboard)
 351 {
 352         struct wl_resource *resource;
 353
 354         wl_resource_for_each(resource, list) {
 355                 if (wl_resource_get_client(resource) == client)
 356                         send_modifiers_to_resource(keyboard,
 357                                                    resource,
 358                                                    serial);
 359         }
 360 }
 361
 362 static struct wl_resource *
 363 find_resource_for_surface(struct wl_list *list, struct weston_surface *surface)
 364 {
 365         if (!surface)
 366                 return NULL;
 367
 368         if (!surface->resource)
 369                 return NULL;
 370
 371         return wl_resource_find_for_client(list, wl_resource_get_client(surface->resource));
 372 }
 373
 374 static struct wl_resource *
 375 find_resource_for_view(struct wl_list *list, struct weston_view *view)
 376 {
 377         if (!view)
 378                 return NULL;
 379
 380         return find_resource_for_surface(list, view->surface);
 381 }
 382
 383 static void
 384 default_grab_keyboard_modifiers(struct weston_keyboard_grab *grab,
 385                                 uint32_t serial, uint32_t mods_depressed,
 386                                 uint32_t mods_latched,
 387                                 uint32_t mods_locked, uint32_t group)
 388 {
 389         struct weston_keyboard *keyboard = grab->keyboard;
 390         struct weston_pointer *pointer = grab->keyboard->seat->pointer;
 391         struct wl_resource *resource;
 392         struct wl_list *resource_list;
 393
 394         resource_list = &keyboard->focus_resource_list;
 395
 396         wl_resource_for_each(resource, resource_list) {
 397                 wl_keyboard_send_modifiers(resource, serial, mods_depressed,
 398                                            mods_latched, mods_locked, group);
 399         }
 400         if (pointer && pointer->focus && pointer->focus->surface->resource &&
 401             pointer->focus->surface != keyboard->focus) {
 402                 struct wl_client *pointer_client =
 403                         wl_resource_get_client(pointer->focus->surface->resource);
 404                 send_modifiers_to_client_in_list(pointer_client,
 405                                                  &keyboard->resource_list,
 406                                                  serial,
 407                                                  keyboard);
 408         }
 409 }
 410
 411 static void
 412 default_grab_keyboard_cancel(struct weston_keyboard_grab *grab)
 413 {
 414 }
 415
 416 static const struct weston_keyboard_grab_interface
 417                                 default_keyboard_grab_interface = {
 418         default_grab_keyboard_key,
 419         default_grab_keyboard_modifiers,
 420         default_grab_keyboard_cancel,
 421 };
 422
 423 static void
 424 pointer_unmap_sprite(struct weston_pointer *pointer)
 425 {
 426         if (weston_surface_is_mapped(pointer->sprite->surface))
 427                 weston_surface_unmap(pointer->sprite->surface);
 428
 429         wl_list_remove(&pointer->sprite_destroy_listener.link);
 430         pointer->sprite->surface->configure = NULL;
 431         pointer->sprite->surface->configure_private = NULL;
 432         weston_view_destroy(pointer->sprite);
 433         pointer->sprite = NULL;
 434 }
 435
 436 static void
 437 pointer_handle_sprite_destroy(struct wl_listener *listener, void *data)
 438 {
 439         struct weston_pointer *pointer =
 440                 container_of(listener, struct weston_pointer,
 441                              sprite_destroy_listener);
 442
 443         pointer->sprite = NULL;
 444 }
 445
 446 static void
 447 weston_pointer_reset_state(struct weston_pointer *pointer)
 448 {
 449         pointer->button_count = 0;
 450 }
 451
 452 static void
 453 weston_pointer_handle_output_destroy(struct wl_listener *listener, void *data);
 454
 455 WL_EXPORT struct weston_pointer *
 456 weston_pointer_create(struct weston_seat *seat)
 457 {
 458         struct weston_pointer *pointer;
 459
 460         pointer = zalloc(sizeof *pointer);
 461         if (pointer == NULL)
 462                 return NULL;
 463
 464         wl_list_init(&pointer->resource_list);
 465         wl_list_init(&pointer->focus_resource_list);
 466         weston_pointer_set_default_grab(pointer,
 467                                         seat->compositor->default_pointer_grab);
 468         wl_list_init(&pointer->focus_resource_listener.link);
 469         pointer->focus_resource_listener.notify = pointer_focus_resource_destroyed;
 470         pointer->default_grab.pointer = pointer;
 471         pointer->grab = &pointer->default_grab;
 472         wl_signal_init(&pointer->motion_signal);
 473         wl_signal_init(&pointer->focus_signal);
 474         wl_list_init(&pointer->focus_view_listener.link);
 475
 476         pointer->sprite_destroy_listener.notify = pointer_handle_sprite_destroy;
 477
 478         /* FIXME: Pick better co-ords. */
 479         pointer->x = wl_fixed_from_int(100);
 480         pointer->y = wl_fixed_from_int(100);
 481
 482         pointer->output_destroy_listener.notify =
 483                 weston_pointer_handle_output_destroy;
 484         wl_signal_add(&seat->compositor->output_destroyed_signal,
 485                       &pointer->output_destroy_listener);
 486
 487         return pointer;
 488 }
 489
 490 WL_EXPORT void
 491 weston_pointer_destroy(struct weston_pointer *pointer)
 492 {
 493         if (pointer->sprite)
 494                 pointer_unmap_sprite(pointer);
 495
 496         /* XXX: What about pointer->resource_list? */
 497
 498         wl_list_remove(&pointer->focus_resource_listener.link);
 499         wl_list_remove(&pointer->focus_view_listener.link);
 500         wl_list_remove(&pointer->output_destroy_listener.link);
 501         free(pointer);
 502 }
 503
 504 void
 505 weston_pointer_set_default_grab(struct weston_pointer *pointer,
 506                 const struct weston_pointer_grab_interface *interface)
 507 {
 508         if (interface)
 509                 pointer->default_grab.interface = interface;
 510         else
 511                 pointer->default_grab.interface =
 512                         &default_pointer_grab_interface;
 513 }
 514
 515 WL_EXPORT struct weston_keyboard *
 516 weston_keyboard_create(void)
 517 {
 518         struct weston_keyboard *keyboard;
 519
 520         keyboard = zalloc(sizeof *keyboard);
 521         if (keyboard == NULL)
 522             return NULL;
 523
 524         wl_list_init(&keyboard->resource_list);
 525         wl_list_init(&keyboard->focus_resource_list);
 526         wl_list_init(&keyboard->focus_resource_listener.link);
 527         keyboard->focus_resource_listener.notify = keyboard_focus_resource_destroyed;
 528         wl_array_init(&keyboard->keys);
 529         keyboard->default_grab.interface = &default_keyboard_grab_interface;
 530         keyboard->default_grab.keyboard = keyboard;
 531         keyboard->grab = &keyboard->default_grab;
 532         wl_signal_init(&keyboard->focus_signal);
 533
 534         return keyboard;
 535 }
 536
 537 static void
 538 weston_xkb_info_destroy(struct weston_xkb_info *xkb_info);
 539
 540 WL_EXPORT void
 541 weston_keyboard_destroy(struct weston_keyboard *keyboard)
 542 {
 543         /* XXX: What about keyboard->resource_list? */
 544
 545 #ifdef ENABLE_XKBCOMMON
 546         if (keyboard->seat->compositor->use_xkbcommon) {
 547                 xkb_state_unref(keyboard->xkb_state.state);
 548                 if (keyboard->xkb_info)
 549                         weston_xkb_info_destroy(keyboard->xkb_info);
 550                 xkb_keymap_unref(keyboard->pending_keymap);
 551         }
 552 #endif
 553
 554         wl_array_release(&keyboard->keys);
 555         wl_list_remove(&keyboard->focus_resource_listener.link);
 556         free(keyboard);
 557 }
 558
 559 static void
 560 weston_touch_reset_state(struct weston_touch *touch)
 561 {
 562         touch->num_tp = 0;
 563 }
 564
 565 WL_EXPORT struct weston_touch *
 566 weston_touch_create(void)
 567 {
 568         struct weston_touch *touch;
 569
 570         touch = zalloc(sizeof *touch);
 571         if (touch == NULL)
 572                 return NULL;
 573
 574         wl_list_init(&touch->resource_list);
 575         wl_list_init(&touch->focus_resource_list);
 576         wl_list_init(&touch->focus_view_listener.link);
 577         touch->focus_view_listener.notify = touch_focus_view_destroyed;
 578         wl_list_init(&touch->focus_resource_listener.link);
 579         touch->focus_resource_listener.notify = touch_focus_resource_destroyed;
 580         touch->default_grab.interface = &default_touch_grab_interface;
 581         touch->default_grab.touch = touch;
 582         touch->grab = &touch->default_grab;
 583         wl_signal_init(&touch->focus_signal);
 584
 585         return touch;
 586 }
 587
 588 WL_EXPORT void
 589 weston_touch_destroy(struct weston_touch *touch)
 590 {
 591         /* XXX: What about touch->resource_list? */
 592
 593         wl_list_remove(&touch->focus_view_listener.link);
 594         wl_list_remove(&touch->focus_resource_listener.link);
 595         free(touch);
 596 }
 597
 598 static void
 599 seat_send_updated_caps(struct weston_seat *seat)
 600 {
 601         enum wl_seat_capability caps = 0;
 602         struct wl_resource *resource;
 603
 604         if (seat->pointer_device_count > 0)
 605                 caps |= WL_SEAT_CAPABILITY_POINTER;
 606         if (seat->keyboard_device_count > 0)
 607                 caps |= WL_SEAT_CAPABILITY_KEYBOARD;
 608         if (seat->touch_device_count > 0)
 609                 caps |= WL_SEAT_CAPABILITY_TOUCH;
 610
 611         wl_resource_for_each(resource, &seat->base_resource_list) {
 612                 wl_seat_send_capabilities(resource, caps);
 613         }
 614         wl_signal_emit(&seat->updated_caps_signal, seat);
 615 }
 616
 617 WL_EXPORT void
 618 weston_pointer_set_focus(struct weston_pointer *pointer,
 619                          struct weston_view *view,
 620                          wl_fixed_t sx, wl_fixed_t sy)
 621 {
 622         struct weston_keyboard *kbd = pointer->seat->keyboard;
 623         struct wl_resource *resource;
 624         struct wl_display *display = pointer->seat->compositor->wl_display;
 625         uint32_t serial;
 626         struct wl_list *focus_resource_list;
 627         int refocus = 0;
 628
 629         if ((!pointer->focus && view) ||
 630             (pointer->focus && !view) ||
 631             (pointer->focus && pointer->focus->surface != view->surface) ||
 632             pointer->sx != sx || pointer->sy != sy)
 633                 refocus = 1;
 634
 635         focus_resource_list = &pointer->focus_resource_list;
 636
 637         if (!wl_list_empty(focus_resource_list) && refocus) {
 638                 serial = wl_display_next_serial(display);
 639                 wl_resource_for_each(resource, focus_resource_list) {
 640                         wl_pointer_send_leave(resource, serial,
 641                                               pointer->focus->surface->resource);
 642                 }
 643
 644                 move_resources(&pointer->resource_list, focus_resource_list);
 645         }
 646
 647         if (find_resource_for_view(&pointer->resource_list, view) && refocus) {
 648                 struct wl_client *surface_client =
 649                         wl_resource_get_client(view->surface->resource);
 650
 651                 serial = wl_display_next_serial(display);
 652
 653                 if (kbd && kbd->focus != view->surface)
 654                         send_modifiers_to_client_in_list(surface_client,
 655                                                          &kbd->resource_list,
 656                                                          serial,
 657                                                          kbd);
 658
 659                 move_resources_for_client(focus_resource_list,
 660                                           &pointer->resource_list,
 661                                           surface_client);
 662
 663                 wl_resource_for_each(resource, focus_resource_list) {
 664                         wl_pointer_send_enter(resource,
 665                                               serial,
 666                                               view->surface->resource,
 667                                               sx, sy);
 668                 }
 669
 670                 pointer->focus_serial = serial;
 671         }
 672
 673         wl_list_remove(&pointer->focus_view_listener.link);
 674         wl_list_init(&pointer->focus_view_listener.link);
 675         wl_list_remove(&pointer->focus_resource_listener.link);
 676         wl_list_init(&pointer->focus_resource_listener.link);
 677         if (view)
 678                 wl_signal_add(&view->destroy_signal, &pointer->focus_view_listener);
 679         if (view && view->surface->resource)
 680                 wl_resource_add_destroy_listener(view->surface->resource,
 681                                                  &pointer->focus_resource_listener);
 682
 683         pointer->focus = view;
 684         pointer->focus_view_listener.notify = pointer_focus_view_destroyed;
 685         pointer->sx = sx;
 686         pointer->sy = sy;
 687
 688         wl_signal_emit(&pointer->focus_signal, pointer);
 689 }
 690
 691 static void
 692 send_enter_to_resource_list(struct wl_list *list,
 693                             struct weston_keyboard *keyboard,
 694                             struct weston_surface *surface,
 695                             uint32_t serial)
 696 {
 697         struct wl_resource *resource;
 698
 699         wl_resource_for_each(resource, list) {
 700                 send_modifiers_to_resource(keyboard, resource, serial);
 701                 wl_keyboard_send_enter(resource, serial,
 702                                        surface->resource,
 703                                        &keyboard->keys);
 704         }
 705 }
 706
 707 WL_EXPORT void
 708 weston_keyboard_set_focus(struct weston_keyboard *keyboard,
 709                           struct weston_surface *surface)
 710 {
 711         struct wl_resource *resource;
 712         struct wl_display *display = keyboard->seat->compositor->wl_display;
 713         uint32_t serial;
 714         struct wl_list *focus_resource_list;
 715
 716         focus_resource_list = &keyboard->focus_resource_list;
 717
 718         if (!wl_list_empty(focus_resource_list) && keyboard->focus != surface) {
 719                 serial = wl_display_next_serial(display);
 720                 wl_resource_for_each(resource, focus_resource_list) {
 721                         wl_keyboard_send_leave(resource, serial,
 722                                         keyboard->focus->resource);
 723                 }
 724                 move_resources(&keyboard->resource_list, focus_resource_list);
 725         }
 726
 727         if (find_resource_for_surface(&keyboard->resource_list, surface) &&
 728             keyboard->focus != surface) {
 729                 struct wl_client *surface_client =
 730                         wl_resource_get_client(surface->resource);
 731
 732                 serial = wl_display_next_serial(display);
 733
 734                 move_resources_for_client(focus_resource_list,
 735                                           &keyboard->resource_list,
 736                                           surface_client);
 737                 send_enter_to_resource_list(focus_resource_list,
 738                                             keyboard,
 739                                             surface,
 740                                             serial);
 741                 keyboard->focus_serial = serial;
 742         }
 743
 744         wl_list_remove(&keyboard->focus_resource_listener.link);
 745         wl_list_init(&keyboard->focus_resource_listener.link);
 746         if (surface && surface->resource)
 747                 wl_resource_add_destroy_listener(surface->resource,
 748                                                  &keyboard->focus_resource_listener);
 749
 750         keyboard->focus = surface;
 751         wl_signal_emit(&keyboard->focus_signal, keyboard);
 752 }
 753
 754 WL_EXPORT void
 755 weston_keyboard_start_grab(struct weston_keyboard *keyboard,
 756                            struct weston_keyboard_grab *grab)
 757 {
 758         keyboard->grab = grab;
 759         grab->keyboard = keyboard;
 760
 761         /* XXX focus? */
 762 }
 763
 764 WL_EXPORT void
 765 weston_keyboard_end_grab(struct weston_keyboard *keyboard)
 766 {
 767         keyboard->grab = &keyboard->default_grab;
 768 }
 769
 770 static void
 771 weston_keyboard_cancel_grab(struct weston_keyboard *keyboard)
 772 {
 773         keyboard->grab->interface->cancel(keyboard->grab);
 774 }
 775
 776 WL_EXPORT void
 777 weston_pointer_start_grab(struct weston_pointer *pointer,
 778                           struct weston_pointer_grab *grab)
 779 {
 780         pointer->grab = grab;
 781         grab->pointer = pointer;
 782         pointer->grab->interface->focus(pointer->grab);
 783 }
 784
 785 WL_EXPORT void
 786 weston_pointer_end_grab(struct weston_pointer *pointer)
 787 {
 788         pointer->grab = &pointer->default_grab;
 789         pointer->grab->interface->focus(pointer->grab);
 790 }
 791
 792 static void
 793 weston_pointer_cancel_grab(struct weston_pointer *pointer)
 794 {
 795         pointer->grab->interface->cancel(pointer->grab);
 796 }
 797
 798 WL_EXPORT void
 799 weston_touch_start_grab(struct weston_touch *touch, struct weston_touch_grab *grab)
 800 {
 801         touch->grab = grab;
 802         grab->touch = touch;
 803 }
 804
 805 WL_EXPORT void
 806 weston_touch_end_grab(struct weston_touch *touch)
 807 {
 808         touch->grab = &touch->default_grab;
 809 }
 810
 811 static void
 812 weston_touch_cancel_grab(struct weston_touch *touch)
 813 {
 814         touch->grab->interface->cancel(touch->grab);
 815 }
 816
 817 static void
 818 weston_pointer_clamp_for_output(struct weston_pointer *pointer,
 819                                 struct weston_output *output,
 820                                 wl_fixed_t *fx, wl_fixed_t *fy)
 821 {
 822         int x, y;
 823
 824         x = wl_fixed_to_int(*fx);
 825         y = wl_fixed_to_int(*fy);
 826
 827         if (x < output->x)
 828                 *fx = wl_fixed_from_int(output->x);
 829         else if (x >= output->x + output->width)
 830                 *fx = wl_fixed_from_int(output->x +
 831                                         output->width - 1);
 832         if (y < output->y)
 833                 *fy = wl_fixed_from_int(output->y);
 834         else if (y >= output->y + output->height)
 835                 *fy = wl_fixed_from_int(output->y +
 836                                         output->height - 1);
 837 }
 838
 839 WL_EXPORT void
 840 weston_pointer_clamp(struct weston_pointer *pointer, wl_fixed_t *fx, wl_fixed_t *fy)
 841 {
 842         struct weston_compositor *ec = pointer->seat->compositor;
 843         struct weston_output *output, *prev = NULL;
 844         int x, y, old_x, old_y, valid = 0;
 845
 846         x = wl_fixed_to_int(*fx);
 847         y = wl_fixed_to_int(*fy);
 848         old_x = wl_fixed_to_int(pointer->x);
 849         old_y = wl_fixed_to_int(pointer->y);
 850
 851         wl_list_for_each(output, &ec->output_list, link) {
 852                 if (pointer->seat->output && pointer->seat->output != output)
 853                         continue;
 854                 if (pixman_region32_contains_point(&output->region,
 855                                                    x, y, NULL))
 856                         valid = 1;
 857                 if (pixman_region32_contains_point(&output->region,
 858                                                    old_x, old_y, NULL))
 859                         prev = output;
 860         }
 861
 862         if (!prev)
 863                 prev = pointer->seat->output;
 864
 865         if (prev && !valid)
 866                 weston_pointer_clamp_for_output(pointer, prev, fx, fy);
 867 }
 868
 869 /* Takes absolute values */
 870 WL_EXPORT void
 871 weston_pointer_move(struct weston_pointer *pointer, wl_fixed_t x, wl_fixed_t y)
 872 {
 873         int32_t ix, iy;
 874
 875         weston_pointer_clamp (pointer, &x, &y);
 876
 877         pointer->x = x;
 878         pointer->y = y;
 879
 880         ix = wl_fixed_to_int(x);
 881         iy = wl_fixed_to_int(y);
 882
 883         if (pointer->sprite) {
 884                 weston_view_set_position(pointer->sprite,
 885                                          ix - pointer->hotspot_x,
 886                                          iy - pointer->hotspot_y);
 887                 weston_view_schedule_repaint(pointer->sprite);
 888         }
 889
 890         pointer->grab->interface->focus(pointer->grab);
 891         wl_signal_emit(&pointer->motion_signal, pointer);
 892 }
 893
 894 /** Verify if the pointer is in a valid position and move it if it isn't.
 895  */
 896 static void
 897 weston_pointer_handle_output_destroy(struct wl_listener *listener, void *data)
 898 {
 899         struct weston_pointer *pointer;
 900         struct weston_compositor *ec;
 901         struct weston_output *output, *closest = NULL;
 902         int x, y, distance, min = INT_MAX;
 903         wl_fixed_t fx, fy;
 904
 905         pointer = container_of(listener, struct weston_pointer,
 906                                output_destroy_listener);
 907         ec = pointer->seat->compositor;
 908
 909         x = wl_fixed_to_int(pointer->x);
 910         y = wl_fixed_to_int(pointer->y);
 911
 912         wl_list_for_each(output, &ec->output_list, link) {
 913                 if (pixman_region32_contains_point(&output->region,
 914                                                    x, y, NULL))
 915                         return;
 916
 917                 /* Aproximante the distance from the pointer to the center of
 918                  * the output. */
 919                 distance = abs(output->x + output->width / 2 - x) +
 920                            abs(output->y + output->height / 2 - y);
 921                 if (distance < min) {
 922                         min = distance;
 923                         closest = output;
 924                 }
 925         }
 926
 927         /* Nothing to do if there's no output left. */
 928         if (!closest)
 929                 return;
 930
 931         fx = pointer->x;
 932         fy = pointer->y;
 933
 934         weston_pointer_clamp_for_output(pointer, closest, &fx, &fy);
 935         weston_pointer_move(pointer, fx, fy);
 936 }
 937
 938 WL_EXPORT void
 939 notify_motion(struct weston_seat *seat,
 940               uint32_t time, wl_fixed_t dx, wl_fixed_t dy)
 941 {
 942         struct weston_compositor *ec = seat->compositor;
 943         struct weston_pointer *pointer = seat->pointer;
 944
 945         weston_compositor_wake(ec);
 946         pointer->grab->interface->motion(pointer->grab, time, pointer->x + dx, pointer->y + dy);
 947 }
 948
 949 static void
 950 run_modifier_bindings(struct weston_seat *seat, uint32_t old, uint32_t new)
 951 {
 952         struct weston_compositor *compositor = seat->compositor;
 953         struct weston_keyboard *keyboard = seat->keyboard;
 954         uint32_t diff;
 955         unsigned int i;
 956         struct {
 957                 uint32_t xkb;
 958                 enum weston_keyboard_modifier weston;
 959         } mods[] = {
 960                 { keyboard->xkb_info->ctrl_mod, MODIFIER_CTRL },
 961                 { keyboard->xkb_info->alt_mod, MODIFIER_ALT },
 962                 { keyboard->xkb_info->super_mod, MODIFIER_SUPER },
 963                 { keyboard->xkb_info->shift_mod, MODIFIER_SHIFT },
 964         };
 965
 966         diff = new & ~old;
 967         for (i = 0; i < ARRAY_LENGTH(mods); i++) {
 968                 if (diff & (1 << mods[i].xkb))
 969                         weston_compositor_run_modifier_binding(compositor,
 970                                                                seat,
 971                                                                mods[i].weston,
 972                                                                WL_KEYBOARD_KEY_STATE_PRESSED);
 973         }
 974
 975         diff = old & ~new;
 976         for (i = 0; i < ARRAY_LENGTH(mods); i++) {
 977                 if (diff & (1 << mods[i].xkb))
 978                         weston_compositor_run_modifier_binding(compositor,
 979                                                                seat,
 980                                                                mods[i].weston,
 981                                                                WL_KEYBOARD_KEY_STATE_RELEASED);
 982         }
 983 }
 984
 985 WL_EXPORT void
 986 notify_motion_absolute(struct weston_seat *seat,
 987                        uint32_t time, wl_fixed_t x, wl_fixed_t y)
 988 {
 989         struct weston_compositor *ec = seat->compositor;
 990         struct weston_pointer *pointer = seat->pointer;
 991
 992         weston_compositor_wake(ec);
 993         pointer->grab->interface->motion(pointer->grab, time, x, y);
 994 }
 995
 996 WL_EXPORT void
 997 weston_surface_activate(struct weston_surface *surface,
 998                         struct weston_seat *seat)
 999 {
1000         struct weston_compositor *compositor = seat->compositor;
1001
1002         if (seat->keyboard) {
1003                 weston_keyboard_set_focus(seat->keyboard, surface);
1004                 wl_data_device_set_keyboard_focus(seat);
1005         }
1006
1007         wl_signal_emit(&compositor->activate_signal, surface);
1008 }
1009
1010 WL_EXPORT void
1011 notify_button(struct weston_seat *seat, uint32_t time, int32_t button,
1012               enum wl_pointer_button_state state)
1013 {
1014         struct weston_compositor *compositor = seat->compositor;
1015         struct weston_pointer *pointer = seat->pointer;
1016
1017         if (state == WL_POINTER_BUTTON_STATE_PRESSED) {
1018                 weston_compositor_idle_inhibit(compositor);
1019                 if (pointer->button_count == 0) {
1020                         pointer->grab_button = button;
1021                         pointer->grab_time = time;
1022                         pointer->grab_x = pointer->x;
1023                         pointer->grab_y = pointer->y;
1024                 }
1025                 pointer->button_count++;
1026         } else {
1027                 weston_compositor_idle_release(compositor);
1028                 pointer->button_count--;
1029         }
1030
1031         weston_compositor_run_button_binding(compositor, seat, time, button,
1032                                              state);
1033
1034         pointer->grab->interface->button(pointer->grab, time, button, state);
1035
1036         if (pointer->button_count == 1)
1037                 pointer->grab_serial =
1038                         wl_display_get_serial(compositor->wl_display);
1039 }
1040
1041 WL_EXPORT void
1042 notify_axis(struct weston_seat *seat, uint32_t time, uint32_t axis,
1043             wl_fixed_t value)
1044 {
1045         struct weston_compositor *compositor = seat->compositor;
1046         struct weston_pointer *pointer = seat->pointer;
1047         struct wl_resource *resource;
1048         struct wl_list *resource_list;
1049
1050         weston_compositor_wake(compositor);
1051
1052         if (!value)
1053                 return;
1054
1055         if (weston_compositor_run_axis_binding(compositor, seat,
1056                                                    time, axis, value))
1057                 return;
1058
1059         resource_list = &pointer->focus_resource_list;
1060         wl_resource_for_each(resource, resource_list)
1061                 wl_pointer_send_axis(resource, time, axis,
1062                                      value);
1063 }
1064
1065 WL_EXPORT int
1066 weston_keyboard_set_locks(struct weston_keyboard *keyboard,
1067                           uint32_t mask, uint32_t value)
1068 {
1069 #ifdef ENABLE_XKBCOMMON
1070         uint32_t serial;
1071         xkb_mod_mask_t mods_depressed, mods_latched, mods_locked, group;
1072         xkb_mod_mask_t num, caps;
1073
1074         /* We don't want the leds to go out of sync with the actual state
1075          * so if the backend has no way to change the leds don't try to
1076          * change the state */
1077         if (!keyboard->seat->led_update)
1078                 return -1;
1079
1080         mods_depressed = xkb_state_serialize_mods(keyboard->xkb_state.state,
1081                                                 XKB_STATE_DEPRESSED);
1082         mods_latched = xkb_state_serialize_mods(keyboard->xkb_state.state,
1083                                                 XKB_STATE_LATCHED);
1084         mods_locked = xkb_state_serialize_mods(keyboard->xkb_state.state,
1085                                                 XKB_STATE_LOCKED);
1086         group = xkb_state_serialize_group(keyboard->xkb_state.state,
1087                                       XKB_STATE_EFFECTIVE);
1088
1089         num = (1 << keyboard->xkb_info->mod2_mod);
1090         caps = (1 << keyboard->xkb_info->caps_mod);
1091         if (mask & WESTON_NUM_LOCK) {
1092                 if (value & WESTON_NUM_LOCK)
1093                         mods_locked |= num;
1094                 else
1095                         mods_locked &= ~num;
1096         }
1097         if (mask & WESTON_CAPS_LOCK) {
1098                 if (value & WESTON_CAPS_LOCK)
1099                         mods_locked |= caps;
1100                 else
1101                         mods_locked &= ~caps;
1102         }
1103
1104         xkb_state_update_mask(keyboard->xkb_state.state, mods_depressed,
1105                               mods_latched, mods_locked, 0, 0, group);
1106
1107         serial = wl_display_next_serial(
1108                                 keyboard->seat->compositor->wl_display);
1109         notify_modifiers(keyboard->seat, serial);
1110
1111         return 0;
1112 #else
1113         return -1;
1114 #endif
1115 }
1116
1117 #ifdef ENABLE_XKBCOMMON
1118 WL_EXPORT void
1119 notify_modifiers(struct weston_seat *seat, uint32_t serial)
1120 {
1121         struct weston_keyboard *keyboard = seat->keyboard;
1122         struct weston_keyboard_grab *grab = keyboard->grab;
1123         uint32_t mods_depressed, mods_latched, mods_locked, group;
1124         uint32_t mods_lookup;
1125         enum weston_led leds = 0;
1126         int changed = 0;
1127
1128         /* Serialize and update our internal state, checking to see if it's
1129          * different to the previous state. */
1130         mods_depressed = xkb_state_serialize_mods(keyboard->xkb_state.state,
1131                                                   XKB_STATE_MODS_DEPRESSED);
1132         mods_latched = xkb_state_serialize_mods(keyboard->xkb_state.state,
1133                                                 XKB_STATE_MODS_LATCHED);
1134         mods_locked = xkb_state_serialize_mods(keyboard->xkb_state.state,
1135                                                XKB_STATE_MODS_LOCKED);
1136         group = xkb_state_serialize_layout(keyboard->xkb_state.state,
1137                                            XKB_STATE_LAYOUT_EFFECTIVE);
1138
1139         if (mods_depressed != seat->keyboard->modifiers.mods_depressed ||
1140             mods_latched != seat->keyboard->modifiers.mods_latched ||
1141             mods_locked != seat->keyboard->modifiers.mods_locked ||
1142             group != seat->keyboard->modifiers.group)
1143                 changed = 1;
1144
1145         run_modifier_bindings(seat, seat->keyboard->modifiers.mods_depressed,
1146                               mods_depressed);
1147
1148         seat->keyboard->modifiers.mods_depressed = mods_depressed;
1149         seat->keyboard->modifiers.mods_latched = mods_latched;
1150         seat->keyboard->modifiers.mods_locked = mods_locked;
1151         seat->keyboard->modifiers.group = group;
1152
1153         /* And update the modifier_state for bindings. */
1154         mods_lookup = mods_depressed | mods_latched;
1155         seat->modifier_state = 0;
1156         if (mods_lookup & (1 << keyboard->xkb_info->ctrl_mod))
1157                 seat->modifier_state |= MODIFIER_CTRL;
1158         if (mods_lookup & (1 << keyboard->xkb_info->alt_mod))
1159                 seat->modifier_state |= MODIFIER_ALT;
1160         if (mods_lookup & (1 << keyboard->xkb_info->super_mod))
1161                 seat->modifier_state |= MODIFIER_SUPER;
1162         if (mods_lookup & (1 << keyboard->xkb_info->shift_mod))
1163                 seat->modifier_state |= MODIFIER_SHIFT;
1164
1165         /* Finally, notify the compositor that LEDs have changed. */
1166         if (xkb_state_led_index_is_active(keyboard->xkb_state.state,
1167                                           keyboard->xkb_info->num_led))
1168                 leds |= LED_NUM_LOCK;
1169         if (xkb_state_led_index_is_active(keyboard->xkb_state.state,
1170                                           keyboard->xkb_info->caps_led))
1171                 leds |= LED_CAPS_LOCK;
1172         if (xkb_state_led_index_is_active(keyboard->xkb_state.state,
1173                                           keyboard->xkb_info->scroll_led))
1174                 leds |= LED_SCROLL_LOCK;
1175         if (leds != keyboard->xkb_state.leds && seat->led_update)
1176                 seat->led_update(seat, leds);
1177         keyboard->xkb_state.leds = leds;
1178
1179         if (changed) {
1180                 grab->interface->modifiers(grab,
1181                                            serial,
1182                                            keyboard->modifiers.mods_depressed,
1183                                            keyboard->modifiers.mods_latched,
1184                                            keyboard->modifiers.mods_locked,
1185                                            keyboard->modifiers.group);
1186         }
1187 }
1188
1189 static void
1190 update_modifier_state(struct weston_seat *seat, uint32_t serial, uint32_t key,
1191                       enum wl_keyboard_key_state state)
1192 {
1193         struct weston_keyboard *keyboard = seat->keyboard;
1194         enum xkb_key_direction direction;
1195
1196         /* Keyboard modifiers don't exist in raw keyboard mode */
1197         if (!seat->compositor->use_xkbcommon)
1198                 return;
1199
1200         if (state == WL_KEYBOARD_KEY_STATE_PRESSED)
1201                 direction = XKB_KEY_DOWN;
1202         else
1203                 direction = XKB_KEY_UP;
1204
1205         /* Offset the keycode by 8, as the evdev XKB rules reflect X's
1206          * broken keycode system, which starts at 8. */
1207         xkb_state_update_key(keyboard->xkb_state.state, key + 8, direction);
1208
1209         notify_modifiers(seat, serial);
1210 }
1211
1212 static void
1213 send_keymap(struct wl_resource *resource, struct weston_xkb_info *xkb_info)
1214 {
1215         wl_keyboard_send_keymap(resource,
1216                                 WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
1217                                 xkb_info->keymap_fd,
1218                                 xkb_info->keymap_size);
1219 }
1220
1221 static void
1222 send_modifiers(struct wl_resource *resource, uint32_t serial, struct weston_keyboard *keyboard)
1223 {
1224         wl_keyboard_send_modifiers(resource, serial,
1225                                    keyboard->modifiers.mods_depressed,
1226                                    keyboard->modifiers.mods_latched,
1227                                    keyboard->modifiers.mods_locked,
1228                                    keyboard->modifiers.group);
1229 }
1230
1231 static struct weston_xkb_info *
1232 weston_xkb_info_create(struct xkb_keymap *keymap);
1233
1234 static void
1235 update_keymap(struct weston_seat *seat)
1236 {
1237         struct weston_keyboard *keyboard = seat->keyboard;
1238         struct wl_resource *resource;
1239         struct weston_xkb_info *xkb_info;
1240         struct xkb_state *state;
1241         xkb_mod_mask_t latched_mods;
1242         xkb_mod_mask_t locked_mods;
1243
1244         xkb_info = weston_xkb_info_create(keyboard->pending_keymap);
1245
1246         xkb_keymap_unref(keyboard->pending_keymap);
1247         keyboard->pending_keymap = NULL;
1248
1249         if (!xkb_info) {
1250                 weston_log("failed to create XKB info\n");
1251                 return;
1252         }
1253
1254         state = xkb_state_new(xkb_info->keymap);
1255         if (!state) {
1256                 weston_log("failed to initialise XKB state\n");
1257                 weston_xkb_info_destroy(xkb_info);
1258                 return;
1259         }
1260
1261         latched_mods = xkb_state_serialize_mods(keyboard->xkb_state.state,
1262                                                 XKB_STATE_MODS_LATCHED);
1263         locked_mods = xkb_state_serialize_mods(keyboard->xkb_state.state,
1264                                                XKB_STATE_MODS_LOCKED);
1265         xkb_state_update_mask(state,
1266                               0, /* depressed */
1267                               latched_mods,
1268                               locked_mods,
1269                               0, 0, 0);
1270
1271         weston_xkb_info_destroy(keyboard->xkb_info);
1272         keyboard->xkb_info = xkb_info;
1273
1274         xkb_state_unref(keyboard->xkb_state.state);
1275         keyboard->xkb_state.state = state;
1276
1277         wl_resource_for_each(resource, &seat->keyboard->resource_list)
1278                 send_keymap(resource, xkb_info);
1279         wl_resource_for_each(resource, &seat->keyboard->focus_resource_list)
1280                 send_keymap(resource, xkb_info);
1281
1282         notify_modifiers(seat, wl_display_next_serial(seat->compositor->wl_display));
1283
1284         if (!latched_mods && !locked_mods)
1285                 return;
1286
1287         wl_resource_for_each(resource, &seat->keyboard->resource_list)
1288                 send_modifiers(resource, wl_display_get_serial(seat->compositor->wl_display), seat->keyboard);
1289         wl_resource_for_each(resource, &seat->keyboard->focus_resource_list)
1290                 send_modifiers(resource, wl_display_get_serial(seat->compositor->wl_display), seat->keyboard);
1291 }
1292 #else
1293 WL_EXPORT void
1294 notify_modifiers(struct weston_seat *seat, uint32_t serial)
1295 {
1296 }
1297
1298 static void
1299 update_modifier_state(struct weston_seat *seat, uint32_t serial, uint32_t key,
1300                       enum wl_keyboard_key_state state)
1301 {
1302 }
1303
1304 static void
1305 update_keymap(struct weston_seat *seat)
1306 {
1307 }
1308 #endif
1309
1310 WL_EXPORT void
1311 notify_key(struct weston_seat *seat, uint32_t time, uint32_t key,
1312            enum wl_keyboard_key_state state,
1313            enum weston_key_state_update update_state)
1314 {
1315         struct weston_compositor *compositor = seat->compositor;
1316         struct weston_keyboard *keyboard = seat->keyboard;
1317         struct weston_keyboard_grab *grab = keyboard->grab;
1318         uint32_t *k, *end;
1319
1320         if (state == WL_KEYBOARD_KEY_STATE_PRESSED) {
1321                 weston_compositor_idle_inhibit(compositor);
1322                 keyboard->grab_key = key;
1323                 keyboard->grab_time = time;
1324         } else {
1325                 weston_compositor_idle_release(compositor);
1326         }
1327
1328         end = keyboard->keys.data + keyboard->keys.size;
1329         for (k = keyboard->keys.data; k < end; k++) {
1330                 if (*k == key) {
1331                         /* Ignore server-generated repeats. */
1332                         if (state == WL_KEYBOARD_KEY_STATE_PRESSED)
1333                                 return;
1334                         *k = *--end;
1335                 }
1336         }
1337         keyboard->keys.size = (void *) end - keyboard->keys.data;
1338         if (state == WL_KEYBOARD_KEY_STATE_PRESSED) {
1339                 k = wl_array_add(&keyboard->keys, sizeof *k);
1340                 *k = key;
1341         }
1342
1343         if (grab == &keyboard->default_grab ||
1344             grab == &keyboard->input_method_grab) {
1345                 weston_compositor_run_key_binding(compositor, seat, time, key,
1346                                                   state);
1347                 grab = keyboard->grab;
1348         }
1349
1350         grab->interface->key(grab, time, key, state);
1351
1352         if (keyboard->pending_keymap &&
1353             keyboard->keys.size == 0)
1354                 update_keymap(seat);
1355
1356         if (update_state == STATE_UPDATE_AUTOMATIC) {
1357                 update_modifier_state(seat,
1358                                       wl_display_get_serial(compositor->wl_display),
1359                                       key,
1360                                       state);
1361         }
1362 }
1363
1364 WL_EXPORT void
1365 notify_pointer_focus(struct weston_seat *seat, struct weston_output *output,
1366                      wl_fixed_t x, wl_fixed_t y)
1367 {
1368         if (output) {
1369                 weston_pointer_move(seat->pointer, x, y);
1370         } else {
1371                 /* FIXME: We should call weston_pointer_set_focus(seat,
1372                  * NULL) here, but somehow that breaks re-entry... */
1373         }
1374 }
1375
1376 static void
1377 destroy_device_saved_kbd_focus(struct wl_listener *listener, void *data)
1378 {
1379         struct weston_seat *ws;
1380
1381         ws = container_of(listener, struct weston_seat,
1382                           saved_kbd_focus_listener);
1383
1384         ws->saved_kbd_focus = NULL;
1385 }
1386
1387 WL_EXPORT void
1388 notify_keyboard_focus_in(struct weston_seat *seat, struct wl_array *keys,
1389                          enum weston_key_state_update update_state)
1390 {
1391         struct weston_compositor *compositor = seat->compositor;
1392         struct weston_keyboard *keyboard = seat->keyboard;
1393         struct weston_surface *surface;
1394         uint32_t *k, serial;
1395
1396         serial = wl_display_next_serial(compositor->wl_display);
1397         wl_array_copy(&keyboard->keys, keys);
1398         wl_array_for_each(k, &keyboard->keys) {
1399                 weston_compositor_idle_inhibit(compositor);
1400                 if (update_state == STATE_UPDATE_AUTOMATIC)
1401                         update_modifier_state(seat, serial, *k,
1402                                               WL_KEYBOARD_KEY_STATE_PRESSED);
1403         }
1404
1405         /* Run key bindings after we've updated the state. */
1406         wl_array_for_each(k, &keyboard->keys) {
1407                 weston_compositor_run_key_binding(compositor, seat, 0, *k,
1408                                                   WL_KEYBOARD_KEY_STATE_PRESSED);
1409         }
1410
1411         surface = seat->saved_kbd_focus;
1412
1413         if (surface) {
1414                 wl_list_remove(&seat->saved_kbd_focus_listener.link);
1415                 weston_keyboard_set_focus(keyboard, surface);
1416                 seat->saved_kbd_focus = NULL;
1417         }
1418 }
1419
1420 WL_EXPORT void
1421 notify_keyboard_focus_out(struct weston_seat *seat)
1422 {
1423         struct weston_compositor *compositor = seat->compositor;
1424         struct weston_keyboard *keyboard = seat->keyboard;
1425         uint32_t *k, serial;
1426
1427         serial = wl_display_next_serial(compositor->wl_display);
1428         wl_array_for_each(k, &keyboard->keys) {
1429                 weston_compositor_idle_release(compositor);
1430                 update_modifier_state(seat, serial, *k,
1431                                       WL_KEYBOARD_KEY_STATE_RELEASED);
1432         }
1433
1434         seat->modifier_state = 0;
1435
1436         if (keyboard->focus) {
1437                 seat->saved_kbd_focus = keyboard->focus;
1438                 seat->saved_kbd_focus_listener.notify =
1439                         destroy_device_saved_kbd_focus;
1440                 wl_signal_add(&keyboard->focus->destroy_signal,
1441                               &seat->saved_kbd_focus_listener);
1442         }
1443
1444         weston_keyboard_set_focus(keyboard, NULL);
1445         weston_keyboard_cancel_grab(keyboard);
1446         if (seat->pointer)
1447                 weston_pointer_cancel_grab(seat->pointer);
1448 }
1449
1450 WL_EXPORT void
1451 weston_touch_set_focus(struct weston_seat *seat, struct weston_view *view)
1452 {
1453         struct wl_list *focus_resource_list;
1454
1455         focus_resource_list = &seat->touch->focus_resource_list;
1456
1457         if (view && seat->touch->focus &&
1458             seat->touch->focus->surface == view->surface) {
1459                 seat->touch->focus = view;
1460                 return;
1461         }
1462
1463         wl_list_remove(&seat->touch->focus_resource_listener.link);
1464         wl_list_init(&seat->touch->focus_resource_listener.link);
1465         wl_list_remove(&seat->touch->focus_view_listener.link);
1466         wl_list_init(&seat->touch->focus_view_listener.link);
1467
1468         if (!wl_list_empty(focus_resource_list)) {
1469                 move_resources(&seat->touch->resource_list,
1470                                focus_resource_list);
1471         }
1472
1473         if (view) {
1474                 struct wl_client *surface_client;
1475
1476                 if (!view->surface->resource) {
1477                         seat->touch->focus = NULL;
1478                         return;
1479                 }
1480
1481                 surface_client = wl_resource_get_client(view->surface->resource);
1482                 move_resources_for_client(focus_resource_list,
1483                                           &seat->touch->resource_list,
1484                                           surface_client);
1485                 wl_resource_add_destroy_listener(view->surface->resource,
1486                                                  &seat->touch->focus_resource_listener);
1487                 wl_signal_add(&view->destroy_signal, &seat->touch->focus_view_listener);
1488         }
1489         seat->touch->focus = view;
1490 }
1491
1492 /**
1493  * notify_touch - emulates button touches and notifies surfaces accordingly.
1494  *
1495  * It assumes always the correct cycle sequence until it gets here: touch_down
1496  * → touch_update → ... → touch_update → touch_end. The driver is responsible
1497  * for sending along such order.
1498  *
1499  */
1500 WL_EXPORT void
1501 notify_touch(struct weston_seat *seat, uint32_t time, int touch_id,
1502              wl_fixed_t x, wl_fixed_t y, int touch_type)
1503 {
1504         struct weston_compositor *ec = seat->compositor;
1505         struct weston_touch *touch = seat->touch;
1506         struct weston_touch_grab *grab = touch->grab;
1507         struct weston_view *ev;
1508         wl_fixed_t sx, sy;
1509
1510         /* Update grab's global coordinates. */
1511         if (touch_id == touch->grab_touch_id && touch_type != WL_TOUCH_UP) {
1512                 touch->grab_x = x;
1513                 touch->grab_y = y;
1514         }
1515
1516         switch (touch_type) {
1517         case WL_TOUCH_DOWN:
1518                 weston_compositor_idle_inhibit(ec);
1519
1520                 touch->num_tp++;
1521
1522                 /* the first finger down picks the view, and all further go
1523                  * to that view for the remainder of the touch session i.e.
1524                  * until all touch points are up again. */
1525                 if (touch->num_tp == 1) {
1526                         ev = weston_compositor_pick_view(ec, x, y, &sx, &sy);
1527                         weston_touch_set_focus(seat, ev);
1528                 } else if (touch->focus) {
1529                         ev = touch->focus;
1530                         weston_view_from_global_fixed(ev, x, y, &sx, &sy);
1531                 } else {
1532                         /* Unexpected condition: We have non-initial touch but
1533                          * there is no focused surface.
1534                          */
1535                         weston_log("touch event received with %d points down"
1536                                    "but no surface focused\n", touch->num_tp);
1537                         return;
1538                 }
1539
1540                 weston_compositor_run_touch_binding(ec, seat,
1541                                                     time, touch_type);
1542
1543                 grab->interface->down(grab, time, touch_id, sx, sy);
1544                 if (touch->num_tp == 1) {
1545                         touch->grab_serial =
1546                                 wl_display_get_serial(ec->wl_display);
1547                         touch->grab_touch_id = touch_id;
1548                         touch->grab_time = time;
1549                         touch->grab_x = x;
1550                         touch->grab_y = y;
1551                 }
1552
1553                 break;
1554         case WL_TOUCH_MOTION:
1555                 ev = touch->focus;
1556                 if (!ev)
1557                         break;
1558
1559                 weston_view_from_global_fixed(ev, x, y, &sx, &sy);
1560                 grab->interface->motion(grab, time, touch_id, sx, sy);
1561                 break;
1562         case WL_TOUCH_UP:
1563                 if (touch->num_tp == 0) {
1564                         /* This can happen if we start out with one or
1565                          * more fingers on the touch screen, in which
1566                          * case we didn't get the corresponding down
1567                          * event. */
1568                         weston_log("unmatched touch up event\n");
1569                         break;
1570                 }
1571                 weston_compositor_idle_release(ec);
1572                 touch->num_tp--;
1573
1574                 grab->interface->up(grab, time, touch_id);
1575                 if (touch->num_tp == 0)
1576                         weston_touch_set_focus(seat, NULL);
1577                 break;
1578         }
1579 }
1580
1581 WL_EXPORT void
1582 notify_touch_frame(struct weston_seat *seat)
1583 {
1584         struct weston_touch *touch = seat->touch;
1585         struct weston_touch_grab *grab = touch->grab;
1586
1587         grab->interface->frame(grab);
1588 }
1589
1590 static void
1591 pointer_cursor_surface_configure(struct weston_surface *es,
1592                                  int32_t dx, int32_t dy)
1593 {
1594         struct weston_pointer *pointer = es->configure_private;
1595         int x, y;
1596
1597         if (es->width == 0)
1598                 return;
1599
1600         assert(es == pointer->sprite->surface);
1601
1602         pointer->hotspot_x -= dx;
1603         pointer->hotspot_y -= dy;
1604
1605         x = wl_fixed_to_int(pointer->x) - pointer->hotspot_x;
1606         y = wl_fixed_to_int(pointer->y) - pointer->hotspot_y;
1607
1608         weston_view_set_position(pointer->sprite, x, y);
1609
1610         empty_region(&es->pending.input);
1611         empty_region(&es->input);
1612
1613         if (!weston_surface_is_mapped(es)) {
1614                 weston_layer_entry_insert(&es->compositor->cursor_layer.view_list,
1615                                           &pointer->sprite->layer_link);
1616                 weston_view_update_transform(pointer->sprite);
1617         }
1618 }
1619
1620 static void
1621 pointer_set_cursor(struct wl_client *client, struct wl_resource *resource,
1622                    uint32_t serial, struct wl_resource *surface_resource,
1623                    int32_t x, int32_t y)
1624 {
1625         struct weston_pointer *pointer = wl_resource_get_user_data(resource);
1626         struct weston_surface *surface = NULL;
1627
1628         if (surface_resource)
1629                 surface = wl_resource_get_user_data(surface_resource);
1630
1631         if (pointer->focus == NULL)
1632                 return;
1633         /* pointer->focus->surface->resource can be NULL. Surfaces like the
1634         black_surface used in shell.c for fullscreen don't have
1635         a resource, but can still have focus */
1636         if (pointer->focus->surface->resource == NULL)
1637                 return;
1638         if (wl_resource_get_client(pointer->focus->surface->resource) != client)
1639                 return;
1640         if (pointer->focus_serial - serial > UINT32_MAX / 2)
1641                 return;
1642
1643         if (surface && pointer->sprite && surface != pointer->sprite->surface) {
1644                 if (surface->configure) {
1645                         wl_resource_post_error(surface->resource,
1646                                                WL_DISPLAY_ERROR_INVALID_OBJECT,
1647                                                "surface->configure already "
1648                                                "set");
1649                         return;
1650                 }
1651         }
1652
1653         if (pointer->sprite)
1654                 pointer_unmap_sprite(pointer);
1655
1656         if (!surface)
1657                 return;
1658
1659         wl_signal_add(&surface->destroy_signal,
1660                       &pointer->sprite_destroy_listener);
1661
1662         surface->configure = pointer_cursor_surface_configure;
1663         surface->configure_private = pointer;
1664         pointer->sprite = weston_view_create(surface);
1665         pointer->hotspot_x = x;
1666         pointer->hotspot_y = y;
1667
1668         if (surface->buffer_ref.buffer) {
1669                 pointer_cursor_surface_configure(surface, 0, 0);
1670                 weston_view_schedule_repaint(pointer->sprite);
1671         }
1672 }
1673
1674 static void
1675 pointer_release(struct wl_client *client, struct wl_resource *resource)
1676 {
1677         wl_resource_destroy(resource);
1678 }
1679
1680 static const struct wl_pointer_interface pointer_interface = {
1681         pointer_set_cursor,
1682         pointer_release
1683 };
1684
1685 static void
1686 seat_get_pointer(struct wl_client *client, struct wl_resource *resource,
1687                  uint32_t id)
1688 {
1689         struct weston_seat *seat = wl_resource_get_user_data(resource);
1690         struct wl_resource *cr;
1691
1692         if (!seat->pointer)
1693                 return;
1694
1695         cr = wl_resource_create(client, &wl_pointer_interface,
1696                                 wl_resource_get_version(resource), id);
1697         if (cr == NULL) {
1698                 wl_client_post_no_memory(client);
1699                 return;
1700         }
1701
1702         /* May be moved to focused list later by either
1703          * weston_pointer_set_focus or directly if this client is already
1704          * focused */
1705         wl_list_insert(&seat->pointer->resource_list, wl_resource_get_link(cr));
1706         wl_resource_set_implementation(cr, &pointer_interface, seat->pointer,
1707                                        unbind_resource);
1708
1709         if (seat->pointer->focus && seat->pointer->focus->surface->resource &&
1710             wl_resource_get_client(seat->pointer->focus->surface->resource) == client) {
1711                 wl_fixed_t sx, sy;
1712
1713                 weston_view_from_global_fixed(seat->pointer->focus,
1714                                               seat->pointer->x,
1715                                               seat->pointer->y,
1716                                               &sx, &sy);
1717
1718                 wl_list_remove(wl_resource_get_link(cr));
1719                 wl_list_insert(&seat->pointer->focus_resource_list,
1720                                wl_resource_get_link(cr));
1721                 wl_pointer_send_enter(cr,
1722                                       seat->pointer->focus_serial,
1723                                       seat->pointer->focus->surface->resource,
1724                                       sx, sy);
1725         }
1726 }
1727
1728 static void
1729 keyboard_release(struct wl_client *client, struct wl_resource *resource)
1730 {
1731         wl_resource_destroy(resource);
1732 }
1733
1734 static const struct wl_keyboard_interface keyboard_interface = {
1735         keyboard_release
1736 };
1737
1738 static int
1739 should_send_modifiers_to_client(struct weston_seat *seat,
1740                                 struct wl_client *client)
1741 {
1742         if (seat->keyboard &&
1743             seat->keyboard->focus &&
1744             seat->keyboard->focus->resource &&
1745             wl_resource_get_client(seat->keyboard->focus->resource) == client)
1746                 return 1;
1747
1748         if (seat->pointer &&
1749             seat->pointer->focus &&
1750             seat->pointer->focus->surface->resource &&
1751             wl_resource_get_client(seat->pointer->focus->surface->resource) == client)
1752                 return 1;
1753
1754         return 0;
1755 }
1756
1757 static void
1758 seat_get_keyboard(struct wl_client *client, struct wl_resource *resource,
1759                   uint32_t id)
1760 {
1761         struct weston_seat *seat = wl_resource_get_user_data(resource);
1762         struct weston_keyboard *keyboard = seat->keyboard;
1763         struct wl_resource *cr;
1764
1765         if (!seat->keyboard)
1766                 return;
1767
1768         cr = wl_resource_create(client, &wl_keyboard_interface,
1769                                 wl_resource_get_version(resource), id);
1770         if (cr == NULL) {
1771                 wl_client_post_no_memory(client);
1772                 return;
1773         }
1774
1775         /* May be moved to focused list later by either
1776          * weston_keyboard_set_focus or directly if this client is already
1777          * focused */
1778         wl_list_insert(&seat->keyboard->resource_list, wl_resource_get_link(cr));
1779         wl_resource_set_implementation(cr, &keyboard_interface,
1780                                        seat, unbind_resource);
1781
1782         if (wl_resource_get_version(cr) >= WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION) {
1783                 wl_keyboard_send_repeat_info(cr,
1784                                              seat->compositor->kb_repeat_rate,
1785                                              seat->compositor->kb_repeat_delay);
1786         }
1787
1788         if (seat->compositor->use_xkbcommon) {
1789                 wl_keyboard_send_keymap(cr, WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
1790                                         keyboard->xkb_info->keymap_fd,
1791                                         keyboard->xkb_info->keymap_size);
1792         } else {
1793                 int null_fd = open("/dev/null", O_RDONLY);
1794                 wl_keyboard_send_keymap(cr, WL_KEYBOARD_KEYMAP_FORMAT_NO_KEYMAP,
1795                                         null_fd,
1796                                         0);
1797                 close(null_fd);
1798         }
1799
1800         if (should_send_modifiers_to_client(seat, client)) {
1801                 send_modifiers_to_resource(seat->keyboard,
1802                                            cr,
1803                                            seat->keyboard->focus_serial);
1804         }
1805
1806         if (seat->keyboard->focus &&
1807             wl_resource_get_client(seat->keyboard->focus->resource) == client) {
1808                 struct weston_surface *surface =
1809                         (struct weston_surface *) seat->keyboard->focus;
1810
1811                 wl_list_remove(wl_resource_get_link(cr));
1812                 wl_list_insert(&seat->keyboard->focus_resource_list,
1813                                wl_resource_get_link(cr));
1814                 wl_keyboard_send_enter(cr,
1815                                        seat->keyboard->focus_serial,
1816                                        surface->resource,
1817                                        &seat->keyboard->keys);
1818
1819                 /* If this is the first keyboard resource for this
1820                  * client... */
1821                 if (seat->keyboard->focus_resource_list.prev ==
1822                     wl_resource_get_link(cr))
1823                         wl_data_device_set_keyboard_focus(seat);
1824         }
1825 }
1826
1827 static void
1828 touch_release(struct wl_client *client, struct wl_resource *resource)
1829 {
1830         wl_resource_destroy(resource);
1831 }
1832
1833 static const struct wl_touch_interface touch_interface = {
1834         touch_release
1835 };
1836
1837 static void
1838 seat_get_touch(struct wl_client *client, struct wl_resource *resource,
1839                uint32_t id)
1840 {
1841         struct weston_seat *seat = wl_resource_get_user_data(resource);
1842         struct wl_resource *cr;
1843
1844         if (!seat->touch)
1845                 return;
1846
1847         cr = wl_resource_create(client, &wl_touch_interface,
1848                                 wl_resource_get_version(resource), id);
1849         if (cr == NULL) {
1850                 wl_client_post_no_memory(client);
1851                 return;
1852         }
1853
1854         if (seat->touch->focus &&
1855             wl_resource_get_client(seat->touch->focus->surface->resource) == client) {
1856                 wl_list_insert(&seat->touch->resource_list,
1857                                wl_resource_get_link(cr));
1858         } else {
1859                 wl_list_insert(&seat->touch->focus_resource_list,
1860                                wl_resource_get_link(cr));
1861         }
1862         wl_resource_set_implementation(cr, &touch_interface,
1863                                        seat, unbind_resource);
1864 }
1865
1866 static const struct wl_seat_interface seat_interface = {
1867         seat_get_pointer,
1868         seat_get_keyboard,
1869         seat_get_touch,
1870 };
1871
1872 static void
1873 bind_seat(struct wl_client *client, void *data, uint32_t version, uint32_t id)
1874 {
1875         struct weston_seat *seat = data;
1876         struct wl_resource *resource;
1877         enum wl_seat_capability caps = 0;
1878
1879         resource = wl_resource_create(client,
1880                                       &wl_seat_interface, MIN(version, 4), id);
1881         wl_list_insert(&seat->base_resource_list, wl_resource_get_link(resource));
1882         wl_resource_set_implementation(resource, &seat_interface, data,
1883                                        unbind_resource);
1884
1885         if (seat->pointer)
1886                 caps |= WL_SEAT_CAPABILITY_POINTER;
1887         if (seat->keyboard)
1888                 caps |= WL_SEAT_CAPABILITY_KEYBOARD;
1889         if (seat->touch)
1890                 caps |= WL_SEAT_CAPABILITY_TOUCH;
1891
1892         wl_seat_send_capabilities(resource, caps);
1893         if (version >= WL_SEAT_NAME_SINCE_VERSION)
1894                 wl_seat_send_name(resource, seat->seat_name);
1895 }
1896
1897 #ifdef ENABLE_XKBCOMMON
1898 int
1899 weston_compositor_xkb_init(struct weston_compositor *ec,
1900                            struct xkb_rule_names *names)
1901 {
1902         ec->use_xkbcommon = 1;
1903
1904         if (ec->xkb_context == NULL) {
1905                 ec->xkb_context = xkb_context_new(0);
1906                 if (ec->xkb_context == NULL) {
1907                         weston_log("failed to create XKB context\n");
1908                         return -1;
1909                 }
1910         }
1911
1912         if (names)
1913                 ec->xkb_names = *names;
1914         if (!ec->xkb_names.rules)
1915                 ec->xkb_names.rules = strdup("evdev");
1916         if (!ec->xkb_names.model)
1917                 ec->xkb_names.model = strdup("pc105");
1918         if (!ec->xkb_names.layout)
1919                 ec->xkb_names.layout = strdup("us");
1920
1921         return 0;
1922 }
1923
1924 static void
1925 weston_xkb_info_destroy(struct weston_xkb_info *xkb_info)
1926 {
1927         if (--xkb_info->ref_count > 0)
1928                 return;
1929
1930         xkb_keymap_unref(xkb_info->keymap);
1931
1932         if (xkb_info->keymap_area)
1933                 munmap(xkb_info->keymap_area, xkb_info->keymap_size);
1934         if (xkb_info->keymap_fd >= 0)
1935                 close(xkb_info->keymap_fd);
1936         free(xkb_info);
1937 }
1938
1939 void
1940 weston_compositor_xkb_destroy(struct weston_compositor *ec)
1941 {
1942         /*
1943          * If we're operating in raw keyboard mode, we never initialized
1944          * libxkbcommon so there's no cleanup to do either.
1945          */
1946         if (!ec->use_xkbcommon)
1947                 return;
1948
1949         free((char *) ec->xkb_names.rules);
1950         free((char *) ec->xkb_names.model);
1951         free((char *) ec->xkb_names.layout);
1952         free((char *) ec->xkb_names.variant);
1953         free((char *) ec->xkb_names.options);
1954
1955         if (ec->xkb_info)
1956                 weston_xkb_info_destroy(ec->xkb_info);
1957         xkb_context_unref(ec->xkb_context);
1958 }
1959
1960 static struct weston_xkb_info *
1961 weston_xkb_info_create(struct xkb_keymap *keymap)
1962 {
1963         struct weston_xkb_info *xkb_info = zalloc(sizeof *xkb_info);
1964         if (xkb_info == NULL)
1965                 return NULL;
1966
1967         xkb_info->keymap = xkb_keymap_ref(keymap);
1968         xkb_info->ref_count = 1;
1969
1970         char *keymap_str;
1971
1972         xkb_info->shift_mod = xkb_keymap_mod_get_index(xkb_info->keymap,
1973                                                        XKB_MOD_NAME_SHIFT);
1974         xkb_info->caps_mod = xkb_keymap_mod_get_index(xkb_info->keymap,
1975                                                       XKB_MOD_NAME_CAPS);
1976         xkb_info->ctrl_mod = xkb_keymap_mod_get_index(xkb_info->keymap,
1977                                                       XKB_MOD_NAME_CTRL);
1978         xkb_info->alt_mod = xkb_keymap_mod_get_index(xkb_info->keymap,
1979                                                      XKB_MOD_NAME_ALT);
1980         xkb_info->mod2_mod = xkb_keymap_mod_get_index(xkb_info->keymap,
1981                                                       "Mod2");
1982         xkb_info->mod3_mod = xkb_keymap_mod_get_index(xkb_info->keymap,
1983                                                       "Mod3");
1984         xkb_info->super_mod = xkb_keymap_mod_get_index(xkb_info->keymap,
1985                                                        XKB_MOD_NAME_LOGO);
1986         xkb_info->mod5_mod = xkb_keymap_mod_get_index(xkb_info->keymap,
1987                                                       "Mod5");
1988
1989         xkb_info->num_led = xkb_keymap_led_get_index(xkb_info->keymap,
1990                                                      XKB_LED_NAME_NUM);
1991         xkb_info->caps_led = xkb_keymap_led_get_index(xkb_info->keymap,
1992                                                       XKB_LED_NAME_CAPS);
1993         xkb_info->scroll_led = xkb_keymap_led_get_index(xkb_info->keymap,
1994                                                         XKB_LED_NAME_SCROLL);
1995
1996         keymap_str = xkb_keymap_get_as_string(xkb_info->keymap,
1997                                               XKB_KEYMAP_FORMAT_TEXT_V1);
1998         if (keymap_str == NULL) {
1999                 weston_log("failed to get string version of keymap\n");
2000                 goto err_keymap;
2001         }
2002         xkb_info->keymap_size = strlen(keymap_str) + 1;
2003
2004         xkb_info->keymap_fd = os_create_anonymous_file(xkb_info->keymap_size);
2005         if (xkb_info->keymap_fd < 0) {
2006                 weston_log("creating a keymap file for %lu bytes failed: %m\n",
2007                         (unsigned long) xkb_info->keymap_size);
2008                 goto err_keymap_str;
2009         }
2010
2011         xkb_info->keymap_area = mmap(NULL, xkb_info->keymap_size,
2012                                      PROT_READ | PROT_WRITE,
2013                                      MAP_SHARED, xkb_info->keymap_fd, 0);
2014         if (xkb_info->keymap_area == MAP_FAILED) {
2015                 weston_log("failed to mmap() %lu bytes\n",
2016                         (unsigned long) xkb_info->keymap_size);
2017                 goto err_dev_zero;
2018         }
2019         strcpy(xkb_info->keymap_area, keymap_str);
2020         free(keymap_str);
2021
2022         return xkb_info;
2023
2024 err_dev_zero:
2025         close(xkb_info->keymap_fd);
2026 err_keymap_str:
2027         free(keymap_str);
2028 err_keymap:
2029         xkb_keymap_unref(xkb_info->keymap);
2030         free(xkb_info);
2031         return NULL;
2032 }
2033
2034 static int
2035 weston_compositor_build_global_keymap(struct weston_compositor *ec)
2036 {
2037         struct xkb_keymap *keymap;
2038
2039         if (ec->xkb_info != NULL)
2040                 return 0;
2041
2042         keymap = xkb_keymap_new_from_names(ec->xkb_context,
2043                                            &ec->xkb_names,
2044                                            0);
2045         if (keymap == NULL) {
2046                 weston_log("failed to compile global XKB keymap\n");
2047                 weston_log("  tried rules %s, model %s, layout %s, variant %s, "
2048                         "options %s\n",
2049                         ec->xkb_names.rules, ec->xkb_names.model,
2050                         ec->xkb_names.layout, ec->xkb_names.variant,
2051                         ec->xkb_names.options);
2052                 return -1;
2053         }
2054
2055         ec->xkb_info = weston_xkb_info_create(keymap);
2056         xkb_keymap_unref(keymap);
2057         if (ec->xkb_info == NULL)
2058                 return -1;
2059
2060         return 0;
2061 }
2062 #else
2063 int
2064 weston_compositor_xkb_init(struct weston_compositor *ec,
2065                            struct xkb_rule_names *names)
2066 {
2067         return 0;
2068 }
2069
2070 void
2071 weston_compositor_xkb_destroy(struct weston_compositor *ec)
2072 {
2073 }
2074 #endif
2075
2076 WL_EXPORT void
2077 weston_seat_update_keymap(struct weston_seat *seat, struct xkb_keymap *keymap)
2078 {
2079         if (!seat->keyboard || !keymap)
2080                 return;
2081
2082 #ifdef ENABLE_XKBCOMMON
2083         if (!seat->compositor->use_xkbcommon)
2084                 return;
2085
2086         xkb_keymap_unref(seat->keyboard->pending_keymap);
2087         seat->keyboard->pending_keymap = xkb_keymap_ref(keymap);
2088
2089         if (seat->keyboard->keys.size == 0)
2090                 update_keymap(seat);
2091 #endif
2092 }
2093
2094 WL_EXPORT int
2095 weston_seat_init_keyboard(struct weston_seat *seat, struct xkb_keymap *keymap)
2096 {
2097         struct weston_keyboard *keyboard;
2098
2099         if (seat->keyboard) {
2100                 seat->keyboard_device_count += 1;
2101                 if (seat->keyboard_device_count == 1)
2102                         seat_send_updated_caps(seat);
2103                 return 0;
2104         }
2105
2106         keyboard = weston_keyboard_create();
2107         if (keyboard == NULL) {
2108                 weston_log("failed to allocate weston keyboard struct\n");
2109                 return -1;
2110         }
2111
2112 #ifdef ENABLE_XKBCOMMON
2113         if (seat->compositor->use_xkbcommon) {
2114                 if (keymap != NULL) {
2115                         keyboard->xkb_info = weston_xkb_info_create(keymap);
2116                         if (keyboard->xkb_info == NULL)
2117                                 goto err;
2118                 } else {
2119                         if (weston_compositor_build_global_keymap(seat->compositor) < 0)
2120                                 goto err;
2121                         keyboard->xkb_info = seat->compositor->xkb_info;
2122                         keyboard->xkb_info->ref_count++;
2123                 }
2124
2125                 keyboard->xkb_state.state = xkb_state_new(keyboard->xkb_info->keymap);
2126                 if (keyboard->xkb_state.state == NULL) {
2127                         weston_log("failed to initialise XKB state\n");
2128                         goto err;
2129                 }
2130
2131                 keyboard->xkb_state.leds = 0;
2132         }
2133 #endif
2134
2135         seat->keyboard = keyboard;
2136         seat->keyboard_device_count = 1;
2137         keyboard->seat = seat;
2138
2139         seat_send_updated_caps(seat);
2140
2141         return 0;
2142
2143 err:
2144         if (keyboard->xkb_info)
2145                 weston_xkb_info_destroy(keyboard->xkb_info);
2146         free(keyboard);
2147
2148         return -1;
2149 }
2150
2151 static void
2152 weston_keyboard_reset_state(struct weston_keyboard *keyboard)
2153 {
2154         struct weston_seat *seat = keyboard->seat;
2155         struct xkb_state *state;
2156
2157 #ifdef ENABLE_XKBCOMMON
2158         if (seat->compositor->use_xkbcommon) {
2159                 state = xkb_state_new(keyboard->xkb_info->keymap);
2160                 if (!state) {
2161                         weston_log("failed to reset XKB state\n");
2162                         return;
2163                 }
2164                 xkb_state_unref(keyboard->xkb_state.state);
2165                 keyboard->xkb_state.state = state;
2166
2167                 keyboard->xkb_state.leds = 0;
2168         }
2169 #endif
2170
2171         seat->modifier_state = 0;
2172 }
2173
2174 WL_EXPORT void
2175 weston_seat_release_keyboard(struct weston_seat *seat)
2176 {
2177         seat->keyboard_device_count--;
2178         if (seat->keyboard_device_count == 0) {
2179                 weston_keyboard_set_focus(seat->keyboard, NULL);
2180                 weston_keyboard_cancel_grab(seat->keyboard);
2181                 weston_keyboard_reset_state(seat->keyboard);
2182                 seat_send_updated_caps(seat);
2183         }
2184 }
2185
2186 WL_EXPORT void
2187 weston_seat_init_pointer(struct weston_seat *seat)
2188 {
2189         struct weston_pointer *pointer;
2190
2191         if (seat->pointer) {
2192                 seat->pointer_device_count += 1;
2193                 if (seat->pointer_device_count == 1)
2194                         seat_send_updated_caps(seat);
2195                 return;
2196         }
2197
2198         pointer = weston_pointer_create(seat);
2199         if (pointer == NULL)
2200                 return;
2201
2202         seat->pointer = pointer;
2203         seat->pointer_device_count = 1;
2204         pointer->seat = seat;
2205
2206         seat_send_updated_caps(seat);
2207 }
2208
2209 WL_EXPORT void
2210 weston_seat_release_pointer(struct weston_seat *seat)
2211 {
2212         struct weston_pointer *pointer = seat->pointer;
2213
2214         seat->pointer_device_count--;
2215         if (seat->pointer_device_count == 0) {
2216                 weston_pointer_set_focus(pointer, NULL,
2217                                          wl_fixed_from_int(0),
2218                                          wl_fixed_from_int(0));
2219                 weston_pointer_cancel_grab(pointer);
2220
2221                 if (pointer->sprite)
2222                         pointer_unmap_sprite(pointer);
2223
2224                 weston_pointer_reset_state(pointer);
2225                 seat_send_updated_caps(seat);
2226         }
2227 }
2228
2229 WL_EXPORT void
2230 weston_seat_init_touch(struct weston_seat *seat)
2231 {
2232         struct weston_touch *touch;
2233
2234         if (seat->touch) {
2235                 seat->touch_device_count += 1;
2236                 if (seat->touch_device_count == 1)
2237                         seat_send_updated_caps(seat);
2238                 return;
2239         }
2240
2241         touch = weston_touch_create();
2242         if (touch == NULL)
2243                 return;
2244
2245         seat->touch = touch;
2246         seat->touch_device_count = 1;
2247         touch->seat = seat;
2248
2249         seat_send_updated_caps(seat);
2250 }
2251
2252 WL_EXPORT void
2253 weston_seat_release_touch(struct weston_seat *seat)
2254 {
2255         seat->touch_device_count--;
2256         if (seat->touch_device_count == 0) {
2257                 weston_touch_set_focus(seat, NULL);
2258                 weston_touch_cancel_grab(seat->touch);
2259                 weston_touch_reset_state(seat->touch);
2260                 seat_send_updated_caps(seat);
2261         }
2262 }
2263
2264 WL_EXPORT void
2265 weston_seat_init(struct weston_seat *seat, struct weston_compositor *ec,
2266                  const char *seat_name)
2267 {
2268         memset(seat, 0, sizeof *seat);
2269
2270         seat->selection_data_source = NULL;
2271         wl_list_init(&seat->base_resource_list);
2272         wl_signal_init(&seat->selection_signal);
2273         wl_list_init(&seat->drag_resource_list);
2274         wl_signal_init(&seat->destroy_signal);
2275         wl_signal_init(&seat->updated_caps_signal);
2276
2277         seat->global = wl_global_create(ec->wl_display, &wl_seat_interface, 4,
2278                                         seat, bind_seat);
2279
2280         seat->compositor = ec;
2281         seat->modifier_state = 0;
2282         seat->seat_name = strdup(seat_name);
2283
2284         wl_list_insert(ec->seat_list.prev, &seat->link);
2285
2286         clipboard_create(seat);
2287
2288         wl_signal_emit(&ec->seat_created_signal, seat);
2289 }
2290
2291 WL_EXPORT void
2292 weston_seat_release(struct weston_seat *seat)
2293 {
2294         wl_list_remove(&seat->link);
2295
2296         if (seat->saved_kbd_focus)
2297                 wl_list_remove(&seat->saved_kbd_focus_listener.link);
2298
2299         if (seat->pointer)
2300                 weston_pointer_destroy(seat->pointer);
2301         if (seat->keyboard)
2302                 weston_keyboard_destroy(seat->keyboard);
2303         if (seat->touch)
2304                 weston_touch_destroy(seat->touch);
2305
2306         free (seat->seat_name);
2307
2308         wl_global_destroy(seat->global);
2309
2310         wl_signal_emit(&seat->destroy_signal, seat);
2311 }