event.c

   1 /*
   2  * event.c - event handlers
   3  *
   4  * Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include <xcb/xcb.h>
  23 #include <xcb/randr.h>
  24 #include <xcb/xcb_atom.h>
  25 #include <xcb/xcb_icccm.h>
  26 #include <xcb/xcb_event.h>
  27
  28 #include "awesome.h"
  29 #include "event.h"
  30 #include "tag.h"
  31 #include "window.h"
  32 #include "ewmh.h"
  33 #include "client.h"
  34 #include "widget.h"
  35 #include "titlebar.h"
  36 #include "keybinding.h"
  37 #include "keygrabber.h"
  38 #include "luaa.h"
  39 #include "systray.h"
  40 #include "screen.h"
  41 #include "layouts/floating.h"
  42 #include "common/atoms.h"
  43
  44 extern awesome_t globalconf;
  45
  46 /** Handle mouse button events.
  47  * \param c The client on which the event happened or NULL.
  48  * \param type Event type, press or release.
  49  * \param button Button number.
  50  * \param state Modkeys state.
  51  * \param buttons Buttons array to check for.
  52  */
  53 static void
  54 event_handle_mouse_button(client_t *c,
  55                           uint8_t type,
  56                           xcb_button_t button,
  57                           uint16_t state,
  58                           button_array_t *buttons)
  59 {
  60     for(int i = 0; i < buttons->len; i++)
  61         if(button == buttons->tab[i]->button
  62            && XUTIL_MASK_CLEAN(state) == buttons->tab[i]->mod)
  63         {
  64             if(c)
  65             {
  66                 luaA_client_userdata_new(globalconf.L, c);
  67                 luaA_dofunction(globalconf.L,
  68                                 type == XCB_BUTTON_PRESS ?
  69                                 buttons->tab[i]->press : buttons->tab[i]->release,
  70                                 1, 0);
  71             }
  72             else
  73                 luaA_dofunction(globalconf.L,
  74                                 type == XCB_BUTTON_PRESS ?
  75                                 buttons->tab[i]->press : buttons->tab[i]->release,
  76                                 0, 0);
  77         }
  78 }
  79
  80 /** Get a widget node from a wibox by coords.
  81  * \param Container position.
  82  * \param widgets The widget list.
  83  * \param width The container width.
  84  * \param height The container height.
  85  * \param x X coordinate of the widget.
  86  * \param y Y coordinate of the widget.
  87  * \return A widget node.
  88  */
  89 static widget_node_t *
  90 widget_getbycoords(position_t position, widget_node_t *widgets, int width, int height, int16_t *x, int16_t *y)
  91 {
  92     int tmp;
  93     widget_node_t *w;
  94
  95     /* Need to transform coordinates like it was top/bottom */
  96     switch(position)
  97     {
  98       case Right:
  99         tmp = *y;
 100         *y = width - *x;
 101         *x = tmp;
 102         break;
 103       case Left:
 104         tmp = *y;
 105         *y = *x;
 106         *x = height - tmp;
 107         break;
 108       default:
 109         break;
 110     }
 111
 112     for(w = widgets; w; w = w->next)
 113         if(*x >= w->area.x && *x < w->area.x + w->area.width
 114            && *y >= w->area.y && *y < w->area.y + w->area.height)
 115             return w;
 116
 117     return NULL;
 118 }
 119
 120 /** The button press event handler.
 121  * \param data The type of mouse event.
 122  * \param connection The connection to the X server.
 123  * \param ev The event.
 124  */
 125 static int
 126 event_handle_button(void *data, xcb_connection_t *connection, xcb_button_press_event_t *ev)
 127 {
 128     int screen;
 129     const int nb_screen = xcb_setup_roots_length(xcb_get_setup(connection));
 130     client_t *c;
 131     widget_node_t *w;
 132     wibox_t *wibox;
 133
 134     /* ev->state is
 135      * button status (8 bits) + modifiers status (8 bits)
 136      * we don't care for button status that we get, especially on release, so
 137      * drop them */
 138     ev->state &= 0x00ff;
 139
 140     if((wibox = wibox_getbywin(ev->event))
 141        || (wibox = wibox_getbywin(ev->child)))
 142     {
 143         /* If the wibox is child, then x,y are
 144          * relative to root window */
 145         if(wibox->sw.window == ev->child)
 146         {
 147             ev->event_x -= wibox->sw.geometry.x;
 148             ev->event_y -= wibox->sw.geometry.y;
 149         }
 150         if((w = widget_getbycoords(wibox->position, wibox->widgets,
 151                                    wibox->sw.geometry.width,
 152                                    wibox->sw.geometry.height,
 153                                    &ev->event_x, &ev->event_y)))
 154             w->widget->button(w, ev, wibox->screen, wibox);
 155         /* return even if no widget match */
 156         return 0;
 157     }
 158
 159     if((c = client_getbywin(ev->event)))
 160     {
 161         event_handle_mouse_button(c, ev->response_type, ev->detail, ev->state, &c->buttons);
 162         xcb_allow_events(globalconf.connection,
 163                          XCB_ALLOW_REPLAY_POINTER,
 164                          XCB_CURRENT_TIME);
 165     }
 166     else
 167         for(screen = 0; screen < nb_screen; screen++)
 168             if(xutil_screen_get(connection, screen)->root == ev->event)
 169             {
 170                 event_handle_mouse_button(NULL, ev->response_type, ev->detail, ev->state, &globalconf.buttons);
 171                 return 0;
 172             }
 173
 174     return 0;
 175 }
 176
 177 /** The configure event handler.
 178  * \param data currently unused.
 179  * \param connection The connection to the X server.
 180  * \param ev The event.
 181  */
 182 static int
 183 event_handle_configurerequest(void *data __attribute__ ((unused)),
 184                               xcb_connection_t *connection, xcb_configure_request_event_t *ev)
 185 {
 186     client_t *c;
 187     area_t geometry;
 188
 189     if((c = client_getbywin(ev->window)))
 190     {
 191         geometry = c->geometry;
 192
 193         if(ev->value_mask & XCB_CONFIG_WINDOW_X)
 194             geometry.x = ev->x;
 195         if(ev->value_mask & XCB_CONFIG_WINDOW_Y)
 196             geometry.y = ev->y;
 197         if(ev->value_mask & XCB_CONFIG_WINDOW_WIDTH)
 198             geometry.width = ev->width;
 199         if(ev->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
 200             geometry.height = ev->height;
 201
 202         if(geometry.x != c->geometry.x || geometry.y != c->geometry.y
 203            || geometry.width != c->geometry.width || geometry.height != c->geometry.height)
 204         {
 205             if(client_isfloating(c) || layout_get_current(c->screen) == layout_floating)
 206             {
 207                 client_resize(c, geometry, false);
 208                 if(client_hasstrut(c))
 209                     /* All the wiboxes (may) need to be repositioned */
 210                     for(int screen = 0; screen < globalconf.nscreen; screen++)
 211                         for(int i = 0; i < globalconf.screens[screen].wiboxes.len; i++)
 212                         {
 213                             wibox_t *s = globalconf.screens[screen].wiboxes.tab[i];
 214                             wibox_position_update(s);
 215                         }
 216             }
 217             else
 218             {
 219                 client_need_arrange(c);
 220                 /* If we do not resize the client, at least tell it that it
 221                  * has its new configuration. That fixes at least
 222                  * gnome-terminal */
 223                 window_configure(c->win, c->geometry, c->border);
 224             }
 225         }
 226         else
 227             window_configure(c->win, geometry, c->border);
 228     }
 229     else
 230     {
 231         uint16_t config_win_mask = 0;
 232         uint32_t config_win_vals[7];
 233         unsigned short i = 0;
 234
 235         if(ev->value_mask & XCB_CONFIG_WINDOW_X)
 236         {
 237             config_win_mask |= XCB_CONFIG_WINDOW_X;
 238             config_win_vals[i++] = ev->x;
 239         }
 240         if(ev->value_mask & XCB_CONFIG_WINDOW_Y)
 241         {
 242             config_win_mask |= XCB_CONFIG_WINDOW_Y;
 243             config_win_vals[i++] = ev->y;
 244         }
 245         if(ev->value_mask & XCB_CONFIG_WINDOW_WIDTH)
 246         {
 247             config_win_mask |= XCB_CONFIG_WINDOW_WIDTH;
 248             config_win_vals[i++] = ev->width;
 249         }
 250         if(ev->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
 251         {
 252             config_win_mask |= XCB_CONFIG_WINDOW_HEIGHT;
 253             config_win_vals[i++] = ev->height;
 254         }
 255         if(ev->value_mask & XCB_CONFIG_WINDOW_BORDER_WIDTH)
 256         {
 257             config_win_mask |= XCB_CONFIG_WINDOW_BORDER_WIDTH;
 258             config_win_vals[i++] = ev->border_width;
 259         }
 260         if(ev->value_mask & XCB_CONFIG_WINDOW_SIBLING)
 261         {
 262             config_win_mask |= XCB_CONFIG_WINDOW_SIBLING;
 263             config_win_vals[i++] = ev->sibling;
 264         }
 265         if(ev->value_mask & XCB_CONFIG_WINDOW_STACK_MODE)
 266         {
 267             config_win_mask |= XCB_CONFIG_WINDOW_STACK_MODE;
 268             config_win_vals[i++] = ev->stack_mode;
 269         }
 270
 271         xcb_configure_window(connection, ev->window, config_win_mask, config_win_vals);
 272     }
 273
 274     return 0;
 275 }
 276
 277 /** The configure notify event handler.
 278  * \param data currently unused.
 279  * \param connection The connection to the X server.
 280  * \param ev The event.
 281  */
 282 static int
 283 event_handle_configurenotify(void *data __attribute__ ((unused)),
 284                              xcb_connection_t *connection, xcb_configure_notify_event_t *ev)
 285 {
 286     int screen_nbr;
 287     const xcb_screen_t *screen;
 288
 289     for(screen_nbr = 0; screen_nbr < xcb_setup_roots_length(xcb_get_setup (connection)); screen_nbr++)
 290         if((screen = xutil_screen_get(connection, screen_nbr)) != NULL
 291            && ev->window == screen->root
 292            && (ev->width != screen->width_in_pixels
 293                || ev->height != screen->height_in_pixels))
 294             /* it's not that we panic, but restart */
 295             awesome_restart();
 296
 297     return 0;
 298 }
 299
 300 /** The destroy notify event handler.
 301  * \param data currently unused.
 302  * \param connection The connection to the X server.
 303  * \param ev The event.
 304  */
 305 static int
 306 event_handle_destroynotify(void *data __attribute__ ((unused)),
 307                            xcb_connection_t *connection __attribute__ ((unused)),
 308                            xcb_destroy_notify_event_t *ev)
 309 {
 310     client_t *c;
 311     xembed_window_t *emwin;
 312     int i;
 313
 314     if((c = client_getbywin(ev->window)))
 315         client_unmanage(c);
 316     else if((emwin = xembed_getbywin(globalconf.embedded, ev->event)))
 317     {
 318         xembed_window_list_detach(&globalconf.embedded, emwin);
 319         for(i = 0; i < globalconf.nscreen; i++)
 320             widget_invalidate_cache(i, WIDGET_CACHE_EMBEDDED);
 321     }
 322
 323     return 0;
 324 }
 325
 326 /** Handle a motion notify over widgets.
 327  * \param object The object.
 328  * \param mouse_over The pointer to the registered mouse over widget.
 329  * \param w The new widget the mouse is over.
 330  */
 331 static void
 332 event_handle_widget_motionnotify(void *object,
 333                                  widget_node_t **mouse_over,
 334                                  widget_node_t *w)
 335 {
 336     if(w != *mouse_over)
 337     {
 338         if(*mouse_over)
 339         {
 340             /* call mouse leave function on old widget */
 341             luaA_wibox_userdata_new(globalconf.L, object);
 342             luaA_dofunction(globalconf.L, (*mouse_over)->widget->mouse_leave, 1, 0);
 343         }
 344         if(w)
 345         {
 346             /* call mouse enter function on new widget and register it */
 347             *mouse_over = w;
 348             luaA_wibox_userdata_new(globalconf.L, object);
 349             luaA_dofunction(globalconf.L, w->widget->mouse_enter, 1, 0);
 350         }
 351     }
 352 }
 353
 354 /** The motion notify event handler.
 355  * \param data currently unused.
 356  * \param connection The connection to the X server.
 357  * \param ev The event.
 358  */
 359 static int
 360 event_handle_motionnotify(void *data __attribute__ ((unused)),
 361                           xcb_connection_t *connection,
 362                           xcb_motion_notify_event_t *ev)
 363 {
 364     wibox_t *wibox = wibox_getbywin(ev->event);
 365     widget_node_t *w;
 366
 367     if(wibox)
 368     {
 369         w = widget_getbycoords(wibox->position, wibox->widgets,
 370                                wibox->sw.geometry.width,
 371                                wibox->sw.geometry.height,
 372                                &ev->event_x, &ev->event_y);
 373         event_handle_widget_motionnotify(wibox, &wibox->mouse_over, w);
 374     }
 375
 376     return 0;
 377 }
 378
 379 /** The leave notify event handler.
 380  * \param data currently unused.
 381  * \param connection The connection to the X server.
 382  * \param ev The event.
 383  */
 384 static int
 385 event_handle_leavenotify(void *data __attribute__ ((unused)),
 386                          xcb_connection_t *connection,
 387                          xcb_leave_notify_event_t *ev)
 388 {
 389     wibox_t *wibox = wibox_getbywin(ev->event);
 390
 391     if(wibox && wibox->mouse_over)
 392     {
 393         /* call mouse leave function on widget the mouse was over */
 394         luaA_wibox_userdata_new(globalconf.L, wibox);
 395         luaA_dofunction(globalconf.L, wibox->mouse_over->widget->mouse_leave, 1, 0);
 396     }
 397
 398     return 0;
 399 }
 400
 401 /** The enter notify event handler.
 402  * \param data currently unused.
 403  * \param connection The connection to the X server.
 404  * \param ev The event.
 405  */
 406 static int
 407 event_handle_enternotify(void *data __attribute__ ((unused)),
 408                          xcb_connection_t *connection,
 409                          xcb_enter_notify_event_t *ev)
 410 {
 411     client_t *c;
 412     xembed_window_t *emwin;
 413
 414     if(ev->mode != XCB_NOTIFY_MODE_NORMAL
 415        || (ev->root_x == globalconf.pointer_x
 416            && ev->root_y == globalconf.pointer_y))
 417         return 0;
 418
 419     if((c = client_getbytitlebarwin(ev->event))
 420        || (c = client_getbywin(ev->event)))
 421     {
 422         window_buttons_grab(c->win, ev->root, &c->buttons);
 423         /* The idea behind saving pointer_x and pointer_y is Bob Marley powered.
 424          * this will allow us top drop some EnterNotify events and thus not giving
 425          * focus to windows appering under the cursor without a cursor move */
 426         globalconf.pointer_x = ev->root_x;
 427         globalconf.pointer_y = ev->root_y;
 428
 429         luaA_client_userdata_new(globalconf.L, c);
 430         luaA_dofunction(globalconf.L, globalconf.hooks.mouse_enter, 1, 0);
 431     }
 432     else if((emwin = xembed_getbywin(globalconf.embedded, ev->event)))
 433         xcb_ungrab_button(globalconf.connection, XCB_BUTTON_INDEX_ANY,
 434                           xutil_screen_get(connection, emwin->phys_screen)->root,
 435                           XCB_BUTTON_MASK_ANY);
 436     else if(ev->event == ev->root)
 437         window_root_buttons_grab(ev->root);
 438
 439     return 0;
 440 }
 441
 442 /** The expose event handler.
 443  * \param data currently unused.
 444  * \param connection The connection to the X server.
 445  * \param ev The event.
 446  */
 447 static int
 448 event_handle_expose(void *data __attribute__ ((unused)),
 449                     xcb_connection_t *connection __attribute__ ((unused)),
 450                     xcb_expose_event_t *ev)
 451 {
 452     wibox_t *wibox = wibox_getbywin(ev->window);
 453
 454     if(wibox)
 455         simplewindow_refresh_pixmap_partial(&wibox->sw,
 456                                             ev->x, ev->y,
 457                                             ev->width, ev->height);
 458
 459     return 0;
 460 }
 461
 462 /** The key press event handler.
 463  * \param data currently unused.
 464  * \param connection The connection to the X server.
 465  * \param ev The event.
 466  */
 467 static int
 468 event_handle_keypress(void *data __attribute__ ((unused)),
 469                       xcb_connection_t *connection __attribute__ ((unused)),
 470                       xcb_key_press_event_t *ev)
 471 {
 472     if(globalconf.keygrabber != LUA_REFNIL)
 473     {
 474         lua_rawgeti(globalconf.L, LUA_REGISTRYINDEX, globalconf.keygrabber);
 475         if(keygrabber_handlekpress(globalconf.L, ev))
 476         {
 477             if(lua_pcall(globalconf.L, 2, 1, 0))
 478             {
 479                 warn("error running function: %s", lua_tostring(globalconf.L, -1));
 480                 keygrabber_ungrab();
 481             }
 482             else if(!lua_isboolean(globalconf.L, -1) || !lua_toboolean(globalconf.L, -1))
 483                 keygrabber_ungrab();
 484         }
 485         lua_pop(globalconf.L, 1);  /* pop returned value or function if not called */
 486     }
 487     else
 488     {
 489         keybinding_t *k = keybinding_find(ev);
 490         if (k && k->fct != LUA_REFNIL)
 491             luaA_dofunction(globalconf.L, k->fct, 0, 0);
 492     }
 493
 494     return 0;
 495 }
 496
 497 /** The map request event handler.
 498  * \param data currently unused.
 499  * \param connection The connection to the X server.
 500  * \param ev The event.
 501  */
 502 static int
 503 event_handle_maprequest(void *data __attribute__ ((unused)),
 504                         xcb_connection_t *connection, xcb_map_request_event_t *ev)
 505 {
 506     int phys_screen, screen = 0, ret = 0;
 507     client_t *c;
 508     xcb_get_window_attributes_cookie_t wa_c;
 509     xcb_get_window_attributes_reply_t *wa_r;
 510     xcb_query_pointer_cookie_t qp_c = { 0 };
 511     xcb_query_pointer_reply_t *qp_r = NULL;
 512     xcb_get_geometry_cookie_t geom_c;
 513     xcb_get_geometry_reply_t *geom_r;
 514
 515     wa_c = xcb_get_window_attributes_unchecked(connection, ev->window);
 516
 517     if(!(wa_r = xcb_get_window_attributes_reply(connection, wa_c, NULL)))
 518         return -1;
 519
 520     if(wa_r->override_redirect)
 521         goto bailout;
 522
 523     if(xembed_getbywin(globalconf.embedded, ev->window))
 524     {
 525         xcb_map_window(connection, ev->window);
 526         xembed_window_activate(connection, ev->window);
 527     }
 528     else if((c = client_getbywin(ev->window)))
 529     {
 530         /* Check that it may be visible, but not asked to be hidden */
 531         if(client_maybevisible(c, c->screen) && !c->ishidden)
 532         {
 533             client_setminimized(c, false);
 534             /* it will be raised, so just update ourself */
 535             client_raise(c);
 536         }
 537     }
 538     else
 539     {
 540         geom_c = xcb_get_geometry_unchecked(connection, ev->window);
 541
 542         if(globalconf.xinerama_is_active)
 543             qp_c = xcb_query_pointer_unchecked(connection,
 544                                                xutil_screen_get(globalconf.connection,
 545                                                                 globalconf.default_screen)->root);
 546
 547         if(!(geom_r = xcb_get_geometry_reply(connection, geom_c, NULL)))
 548         {
 549             if(globalconf.xinerama_is_active)
 550                 qp_r = xcb_query_pointer_reply(connection, qp_c, NULL);
 551             ret = -1;
 552             goto bailout;
 553         }
 554
 555
 556         phys_screen = xutil_root2screen(connection, geom_r->root);
 557
 558         if(globalconf.xinerama_is_active
 559            && (qp_r = xcb_query_pointer_reply(connection, qp_c, NULL)))
 560             screen = screen_getbycoord(screen, qp_r->root_x, qp_r->root_y);
 561         else
 562             screen = phys_screen;
 563
 564         client_manage(ev->window, geom_r, phys_screen, screen);
 565         p_delete(&geom_r);
 566     }
 567
 568 bailout:
 569     p_delete(&qp_r);
 570     p_delete(&wa_r);
 571     return ret;
 572 }
 573
 574 /** The unmap notify event handler.
 575  * \param data currently unused.
 576  * \param connection The connection to the X server.
 577  * \param ev The event.
 578  */
 579 static int
 580 event_handle_unmapnotify(void *data __attribute__ ((unused)),
 581                          xcb_connection_t *connection, xcb_unmap_notify_event_t *ev)
 582 {
 583     client_t *c;
 584     xembed_window_t *em;
 585     int i;
 586
 587     if((c = client_getbywin(ev->window)))
 588     {
 589         if(ev->event == xutil_screen_get(connection, c->phys_screen)->root
 590            && XCB_EVENT_SENT(ev)
 591            && window_state_get_reply(window_state_get_unchecked(c->win)) == XCB_WM_STATE_NORMAL)
 592             client_unmanage(c);
 593     }
 594     else if((em = xembed_getbywin(globalconf.embedded, ev->window)))
 595     {
 596         xembed_window_list_detach(&globalconf.embedded, em);
 597         for(i = 0; i < globalconf.nscreen; i++)
 598             widget_invalidate_cache(i, WIDGET_CACHE_EMBEDDED);
 599     }
 600
 601     return 0;
 602 }
 603
 604 /** The randr screen change notify event handler.
 605  * \param data currently unused.
 606  * \param connection The connection to the X server.
 607  * \param ev The event.
 608  */
 609 static int
 610 event_handle_randr_screen_change_notify(void *data __attribute__ ((unused)),
 611                                         xcb_connection_t *connection __attribute__ ((unused)),
 612                                         xcb_randr_screen_change_notify_event_t *ev)
 613 {
 614     if(!globalconf.have_randr)
 615         return -1;
 616
 617     /* Code  of  XRRUpdateConfiguration Xlib  function  ported to  XCB
 618      * (only the code relevant  to RRScreenChangeNotify) as the latter
 619      * doesn't provide this kind of function */
 620     if(ev->rotation & (XCB_RANDR_ROTATION_ROTATE_90 | XCB_RANDR_ROTATION_ROTATE_270))
 621         xcb_randr_set_screen_size(connection, ev->root, ev->height, ev->width,
 622                                   ev->mheight, ev->mwidth);
 623     else
 624         xcb_randr_set_screen_size(connection, ev->root, ev->width, ev->height,
 625                                   ev->mwidth, ev->mheight);
 626
 627     /* XRRUpdateConfiguration also executes the following instruction
 628      * but it's not useful because SubpixelOrder is not used at all at
 629      * the moment
 630      *
 631      * XRenderSetSubpixelOrder(dpy, snum, scevent->subpixel_order);
 632      */
 633
 634     awesome_restart();
 635
 636     return 0;
 637 }
 638
 639 /** The client message event handler.
 640  * \param data currently unused.
 641  * \param connection The connection to the X server.
 642  * \param ev The event.
 643  */
 644 static int
 645 event_handle_clientmessage(void *data __attribute__ ((unused)),
 646                            xcb_connection_t *connection,
 647                            xcb_client_message_event_t *ev)
 648 {
 649     client_t *c;
 650
 651     if(ev->type == WM_CHANGE_STATE)
 652     {
 653         if((c = client_getbywin(ev->window))
 654            && ev->format == 32
 655            && ev->data.data32[0] == XCB_WM_STATE_ICONIC)
 656             client_setminimized(c, true);
 657     }
 658     else if(ev->type == _XEMBED)
 659         return xembed_process_client_message(ev);
 660     else if(ev->type == _NET_SYSTEM_TRAY_OPCODE)
 661         return systray_process_client_message(ev);
 662     return ewmh_process_client_message(ev);
 663 }
 664
 665 /** The keymap change notify event handler.
 666  * \param data Unused data.
 667  * \param connection The connection to the X server.
 668  * \param ev The event.
 669  * \return Status code, 0 if everything's fine.
 670  */
 671 static int
 672 event_handle_mappingnotify(void *data,
 673                            xcb_connection_t *connection,
 674                            xcb_mapping_notify_event_t *ev)
 675 {
 676     xcb_get_modifier_mapping_cookie_t xmapping_cookie;
 677
 678     if(ev->request == XCB_MAPPING_MODIFIER
 679        || ev->request == XCB_MAPPING_KEYBOARD)
 680     {
 681         /* Send the request to get the NumLock, ShiftLock and CapsLock masks */
 682         xmapping_cookie = xcb_get_modifier_mapping_unchecked(globalconf.connection);
 683
 684         /* Free and then allocate the key symbols */
 685         xcb_key_symbols_free(globalconf.keysyms);
 686         globalconf.keysyms = xcb_key_symbols_alloc(globalconf.connection);
 687
 688         /* Process the reply of previously sent mapping request */
 689         xutil_lock_mask_get(globalconf.connection, xmapping_cookie,
 690                             globalconf.keysyms, &globalconf.numlockmask,
 691                             &globalconf.shiftlockmask, &globalconf.capslockmask);
 692     }
 693
 694     return 0;
 695 }
 696
 697 static int
 698 event_handle_reparentnotify(void *data,
 699                            xcb_connection_t *connection,
 700                            xcb_reparent_notify_event_t *ev)
 701 {
 702     client_t *c;
 703
 704     if((c = client_getbywin(ev->window)))
 705         client_unmanage(c);
 706
 707     return 0;
 708 }
 709
 710 void a_xcb_set_event_handlers(void)
 711 {
 712     const xcb_query_extension_reply_t *randr_query;
 713
 714     xcb_event_set_button_press_handler(&globalconf.evenths, event_handle_button, NULL);
 715     xcb_event_set_button_release_handler(&globalconf.evenths, event_handle_button, NULL);
 716     xcb_event_set_configure_request_handler(&globalconf.evenths, event_handle_configurerequest, NULL);
 717     xcb_event_set_configure_notify_handler(&globalconf.evenths, event_handle_configurenotify, NULL);
 718     xcb_event_set_destroy_notify_handler(&globalconf.evenths, event_handle_destroynotify, NULL);
 719     xcb_event_set_enter_notify_handler(&globalconf.evenths, event_handle_enternotify, NULL);
 720     xcb_event_set_leave_notify_handler(&globalconf.evenths, event_handle_leavenotify, NULL);
 721     xcb_event_set_motion_notify_handler(&globalconf.evenths, event_handle_motionnotify, NULL);
 722     xcb_event_set_expose_handler(&globalconf.evenths, event_handle_expose, NULL);
 723     xcb_event_set_key_press_handler(&globalconf.evenths, event_handle_keypress, NULL);
 724     xcb_event_set_map_request_handler(&globalconf.evenths, event_handle_maprequest, NULL);
 725     xcb_event_set_unmap_notify_handler(&globalconf.evenths, event_handle_unmapnotify, NULL);
 726     xcb_event_set_client_message_handler(&globalconf.evenths, event_handle_clientmessage, NULL);
 727     xcb_event_set_mapping_notify_handler(&globalconf.evenths, event_handle_mappingnotify, NULL);
 728     xcb_event_set_reparent_notify_handler(&globalconf.evenths, event_handle_reparentnotify, NULL);
 729
 730     /* check for randr extension */
 731     randr_query = xcb_get_extension_data(globalconf.connection, &xcb_randr_id);
 732     if((globalconf.have_randr = randr_query->present))
 733         xcb_event_set_handler(&globalconf.evenths,
 734                               randr_query->first_event + XCB_RANDR_SCREEN_CHANGE_NOTIFY,
 735                               (xcb_generic_event_handler_t) event_handle_randr_screen_change_notify,
 736                               NULL);
 737
 738 }
 739
 740 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80