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 "key.h"
  37 #include "keygrabber.h"
  38 #include "mousegrabber.h"
  39 #include "luaa.h"
  40 #include "systray.h"
  41 #include "screen.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             switch(type)
  64             {
  65               case XCB_BUTTON_PRESS:
  66                 if(buttons->tab[i]->press != LUA_REFNIL)
  67                 {
  68                     if(c)
  69                     {
  70                         luaA_client_userdata_new(globalconf.L, c);
  71                         luaA_dofunction(globalconf.L, buttons->tab[i]->press, 1, 0);
  72                     }
  73                     else
  74                         luaA_dofunction(globalconf.L, buttons->tab[i]->press, 0, 0);
  75                 }
  76                 break;
  77               case XCB_BUTTON_RELEASE:
  78                 if(buttons->tab[i]->release != LUA_REFNIL)
  79                 {
  80                     if(c)
  81                     {
  82                         luaA_client_userdata_new(globalconf.L, c);
  83                         luaA_dofunction(globalconf.L, buttons->tab[i]->release, 1, 0);
  84                     }
  85                     else
  86                         luaA_dofunction(globalconf.L, buttons->tab[i]->release, 0, 0);
  87                 }
  88                 break;
  89             }
  90 }
  91
  92 /** Handle an event with mouse grabber if needed
  93  * \param x The x coordinate.
  94  * \param y The y coordinate.
  95  * \param mask The mask buttons.
  96  */
  97 static void
  98 event_handle_mousegrabber(int x, int y, uint16_t mask)
  99 {
 100     if(globalconf.mousegrabber != LUA_REFNIL)
 101     {
 102         lua_rawgeti(globalconf.L, LUA_REGISTRYINDEX, globalconf.mousegrabber);
 103         mousegrabber_handleevent(globalconf.L, x, y, mask);
 104         if(lua_pcall(globalconf.L, 1, 1, 0))
 105         {
 106             warn("error running function: %s", lua_tostring(globalconf.L, -1));
 107             luaA_mousegrabber_stop(globalconf.L);
 108         }
 109         else if(!lua_isboolean(globalconf.L, -1) || !lua_toboolean(globalconf.L, -1))
 110             luaA_mousegrabber_stop(globalconf.L);
 111         lua_pop(globalconf.L, 1);  /* pop returned value */
 112     }
 113 }
 114
 115 /** The button press event handler.
 116  * \param data The type of mouse event.
 117  * \param connection The connection to the X server.
 118  * \param ev The event.
 119  */
 120 static int
 121 event_handle_button(void *data, xcb_connection_t *connection, xcb_button_press_event_t *ev)
 122 {
 123     int screen;
 124     const int nb_screen = xcb_setup_roots_length(xcb_get_setup(connection));
 125     client_t *c;
 126     widget_t *w;
 127     wibox_t *wibox;
 128
 129     /* ev->state is
 130      * button status (8 bits) + modifiers status (8 bits)
 131      * we don't care for button status that we get, especially on release, so
 132      * drop them */
 133     ev->state &= 0x00ff;
 134
 135     event_handle_mousegrabber(ev->root_x, ev->root_y, ev->state);
 136
 137     if((wibox = wibox_getbywin(ev->event))
 138        || (wibox = wibox_getbywin(ev->child)))
 139     {
 140         /* If the wibox is child, then x,y are
 141          * relative to root window */
 142         if(wibox->sw.window == ev->child)
 143         {
 144             ev->event_x -= wibox->sw.geometry.x;
 145             ev->event_y -= wibox->sw.geometry.y;
 146         }
 147
 148         /* check if we match a binding on the wibox */
 149         button_array_t *b = &wibox->buttons;
 150
 151         for(int i = 0; i < b->len; i++)
 152             if(ev->detail == b->tab[i]->button
 153                && XUTIL_MASK_CLEAN(ev->state) == b->tab[i]->mod)
 154                 switch(ev->response_type)
 155                 {
 156                   case XCB_BUTTON_PRESS:
 157                     if(b->tab[i]->press != LUA_REFNIL)
 158                     {
 159                         luaA_wibox_userdata_new(globalconf.L, wibox);
 160                         luaA_dofunction(globalconf.L, b->tab[i]->press, 1, 0);
 161                     }
 162                     break;
 163                   case XCB_BUTTON_RELEASE:
 164                     if(b->tab[i]->release != LUA_REFNIL)
 165                     {
 166                         luaA_wibox_userdata_new(globalconf.L, wibox);
 167                         luaA_dofunction(globalconf.L, b->tab[i]->release, 1, 0);
 168                     }
 169                     break;
 170                 }
 171
 172         /* then try to match a widget binding */
 173         if((w = widget_getbycoords(wibox->position, &wibox->widgets,
 174                                    wibox->sw.geometry.width,
 175                                    wibox->sw.geometry.height,
 176                                    &ev->event_x, &ev->event_y)))
 177         {
 178             b = &w->buttons;
 179
 180             for(int i = 0; i < b->len; i++)
 181                 if(ev->detail == b->tab[i]->button
 182                    && XUTIL_MASK_CLEAN(ev->state) == b->tab[i]->mod)
 183                     switch(ev->response_type)
 184                     {
 185                       case XCB_BUTTON_PRESS:
 186                         if(b->tab[i]->press != LUA_REFNIL)
 187                         {
 188                             luaA_wibox_userdata_new(globalconf.L, wibox);
 189                             luaA_dofunction(globalconf.L, b->tab[i]->press, 1, 0);
 190                         }
 191                         break;
 192                       case XCB_BUTTON_RELEASE:
 193                         if(b->tab[i]->release != LUA_REFNIL)
 194                         {
 195                             luaA_wibox_userdata_new(globalconf.L, wibox);
 196                             luaA_dofunction(globalconf.L, b->tab[i]->release, 1, 0);
 197                         }
 198                         break;
 199                     }
 200         }
 201         /* return even if no widget match */
 202         return 0;
 203     }
 204
 205     if((c = client_getbywin(ev->event)))
 206     {
 207         event_handle_mouse_button(c, ev->response_type, ev->detail, ev->state, &c->buttons);
 208         xcb_allow_events(globalconf.connection,
 209                          XCB_ALLOW_REPLAY_POINTER,
 210                          XCB_CURRENT_TIME);
 211     }
 212     else
 213         for(screen = 0; screen < nb_screen; screen++)
 214             if(xutil_screen_get(connection, screen)->root == ev->event)
 215             {
 216                 event_handle_mouse_button(NULL, ev->response_type, ev->detail, ev->state, &globalconf.buttons);
 217                 return 0;
 218             }
 219
 220     return 0;
 221 }
 222
 223 static void
 224 event_handle_configurerequest_configure_window(xcb_configure_request_event_t *ev)
 225 {
 226     uint16_t config_win_mask = 0;
 227     uint32_t config_win_vals[7];
 228     unsigned short i = 0;
 229
 230     if(ev->value_mask & XCB_CONFIG_WINDOW_X)
 231     {
 232         config_win_mask |= XCB_CONFIG_WINDOW_X;
 233         config_win_vals[i++] = ev->x;
 234     }
 235     if(ev->value_mask & XCB_CONFIG_WINDOW_Y)
 236     {
 237         config_win_mask |= XCB_CONFIG_WINDOW_Y;
 238         config_win_vals[i++] = ev->y;
 239     }
 240     if(ev->value_mask & XCB_CONFIG_WINDOW_WIDTH)
 241     {
 242         config_win_mask |= XCB_CONFIG_WINDOW_WIDTH;
 243         config_win_vals[i++] = ev->width;
 244     }
 245     if(ev->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
 246     {
 247         config_win_mask |= XCB_CONFIG_WINDOW_HEIGHT;
 248         config_win_vals[i++] = ev->height;
 249     }
 250     if(ev->value_mask & XCB_CONFIG_WINDOW_BORDER_WIDTH)
 251     {
 252         config_win_mask |= XCB_CONFIG_WINDOW_BORDER_WIDTH;
 253         config_win_vals[i++] = ev->border_width;
 254     }
 255     if(ev->value_mask & XCB_CONFIG_WINDOW_SIBLING)
 256     {
 257         config_win_mask |= XCB_CONFIG_WINDOW_SIBLING;
 258         config_win_vals[i++] = ev->sibling;
 259     }
 260     if(ev->value_mask & XCB_CONFIG_WINDOW_STACK_MODE)
 261     {
 262         config_win_mask |= XCB_CONFIG_WINDOW_STACK_MODE;
 263         config_win_vals[i++] = ev->stack_mode;
 264     }
 265
 266     xcb_configure_window(globalconf.connection, ev->window, config_win_mask, config_win_vals);
 267 }
 268
 269 /** The configure event handler.
 270  * \param data currently unused.
 271  * \param connection The connection to the X server.
 272  * \param ev The event.
 273  */
 274 static int
 275 event_handle_configurerequest(void *data __attribute__ ((unused)),
 276                               xcb_connection_t *connection, xcb_configure_request_event_t *ev)
 277 {
 278     client_t *c;
 279     area_t geometry;
 280
 281     if((c = client_getbywin(ev->window)))
 282     {
 283         geometry = titlebar_geometry_remove(c->titlebar, c->border, c->geometry);
 284
 285         if(ev->value_mask & XCB_CONFIG_WINDOW_X)
 286             geometry.x = ev->x;
 287         if(ev->value_mask & XCB_CONFIG_WINDOW_Y)
 288             geometry.y = ev->y;
 289         if(ev->value_mask & XCB_CONFIG_WINDOW_WIDTH)
 290             geometry.width = ev->width;
 291         if(ev->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
 292             geometry.height = ev->height;
 293
 294         if(c->isbanned)
 295         {
 296             /* We'll be sending protocol geometry, so don't readd borders and titlebar. */
 297             /* We do have to ensure the windows don't end up in the visible screen. */
 298             geometry.x = - (geometry.width + 2*c->border);
 299             geometry.y = - (geometry.height + 2*c->border);
 300             window_configure(c->win, geometry, c->border);
 301             event_handle_configurerequest_configure_window(ev);
 302         }
 303         else
 304         {
 305             /** Configure request are sent with size relative to real (internal)
 306              * window size, i.e. without titlebars and borders. */
 307             geometry = titlebar_geometry_add(c->titlebar, c->border, geometry);
 308
 309             if(client_resize(c, geometry, false))
 310             {
 311                 /* All the wiboxes (may) need to be repositioned. */
 312                 if(client_hasstrut(c))
 313                     wibox_update_positions();
 314                 client_need_arrange(c);
 315             }
 316             else
 317             {
 318                 /* Resize wasn't officially needed, but we don't want to break expectations. */
 319                 geometry = titlebar_geometry_remove(c->titlebar, c->border, c->geometry);
 320                 window_configure(c->win, geometry, c->border);
 321             }
 322         }
 323     }
 324     else
 325         event_handle_configurerequest_configure_window(ev);
 326
 327     return 0;
 328 }
 329
 330 /** The configure notify event handler.
 331  * \param data currently unused.
 332  * \param connection The connection to the X server.
 333  * \param ev The event.
 334  */
 335 static int
 336 event_handle_configurenotify(void *data __attribute__ ((unused)),
 337                              xcb_connection_t *connection, xcb_configure_notify_event_t *ev)
 338 {
 339     int screen_nbr;
 340     const xcb_screen_t *screen;
 341
 342     for(screen_nbr = 0; screen_nbr < xcb_setup_roots_length(xcb_get_setup (connection)); screen_nbr++)
 343         if((screen = xutil_screen_get(connection, screen_nbr)) != NULL
 344            && ev->window == screen->root
 345            && (ev->width != screen->width_in_pixels
 346                || ev->height != screen->height_in_pixels))
 347             /* it's not that we panic, but restart */
 348             awesome_restart();
 349
 350     return 0;
 351 }
 352
 353 /** The destroy notify event handler.
 354  * \param data currently unused.
 355  * \param connection The connection to the X server.
 356  * \param ev The event.
 357  */
 358 static int
 359 event_handle_destroynotify(void *data __attribute__ ((unused)),
 360                            xcb_connection_t *connection __attribute__ ((unused)),
 361                            xcb_destroy_notify_event_t *ev)
 362 {
 363     client_t *c;
 364
 365     if((c = client_getbywin(ev->window)))
 366         client_unmanage(c);
 367     else
 368         for(int i = 0; i < globalconf.embedded.len; i++)
 369             if(globalconf.embedded.tab[i].win == ev->window)
 370             {
 371                 xembed_window_array_take(&globalconf.embedded, i);
 372                 for(int j = 0; j < globalconf.nscreen; j++)
 373                     widget_invalidate_bytype(j, widget_systray);
 374             }
 375
 376     return 0;
 377 }
 378
 379 /** Handle a motion notify over widgets.
 380  * \param object The object.
 381  * \param mouse_over The pointer to the registered mouse over widget.
 382  * \param widget The new widget the mouse is over.
 383  */
 384 static void
 385 event_handle_widget_motionnotify(void *object,
 386                                  widget_t **mouse_over,
 387                                  widget_t *widget)
 388 {
 389     if(widget != *mouse_over)
 390     {
 391         if(*mouse_over)
 392         {
 393             if((*mouse_over)->mouse_leave != LUA_REFNIL)
 394             {
 395                 /* call mouse leave function on old widget */
 396                 luaA_wibox_userdata_new(globalconf.L, object);
 397                 luaA_dofunction(globalconf.L, (*mouse_over)->mouse_leave, 1, 0);
 398             }
 399         }
 400         if(widget)
 401         {
 402             /* call mouse enter function on new widget and register it */
 403             *mouse_over = widget;
 404             if(widget->mouse_enter != LUA_REFNIL)
 405             {
 406                 luaA_wibox_userdata_new(globalconf.L, object);
 407                 luaA_dofunction(globalconf.L, widget->mouse_enter, 1, 0);
 408             }
 409         }
 410     }
 411 }
 412
 413 /** The motion notify event handler.
 414  * \param data currently unused.
 415  * \param connection The connection to the X server.
 416  * \param ev The event.
 417  */
 418 static int
 419 event_handle_motionnotify(void *data __attribute__ ((unused)),
 420                           xcb_connection_t *connection,
 421                           xcb_motion_notify_event_t *ev)
 422 {
 423     wibox_t *wibox = wibox_getbywin(ev->event);
 424     widget_t *w;
 425
 426     event_handle_mousegrabber(ev->root_x, ev->root_y, ev->state);
 427
 428     if(wibox
 429        && (w = widget_getbycoords(wibox->position, &wibox->widgets,
 430                                   wibox->sw.geometry.width,
 431                                   wibox->sw.geometry.height,
 432                                   &ev->event_x, &ev->event_y)))
 433     {
 434         globalconf.pointer_x = ev->root_x;
 435         globalconf.pointer_y = ev->root_y;
 436         event_handle_widget_motionnotify(wibox, &wibox->mouse_over, w);
 437     }
 438
 439     return 0;
 440 }
 441
 442 /** The leave notify 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_leavenotify(void *data __attribute__ ((unused)),
 449                          xcb_connection_t *connection,
 450                          xcb_leave_notify_event_t *ev)
 451 {
 452     wibox_t *wibox;
 453     client_t *c = client_getbywin(ev->event);
 454
 455     if(c)
 456     {
 457         if(globalconf.hooks.mouse_leave != LUA_REFNIL)
 458         {
 459             luaA_client_userdata_new(globalconf.L, c);
 460             luaA_dofunction(globalconf.L, globalconf.hooks.mouse_leave, 1, 0);
 461         }
 462     }
 463     else if((wibox = wibox_getbywin(ev->event)))
 464     {
 465         if(wibox->mouse_over)
 466         {
 467             if(wibox->mouse_over->mouse_leave != LUA_REFNIL)
 468             {
 469                 /* call mouse leave function on widget the mouse was over */
 470                 luaA_wibox_userdata_new(globalconf.L, wibox);
 471                 luaA_dofunction(globalconf.L, wibox->mouse_over->mouse_leave, 1, 0);
 472             }
 473             wibox->mouse_over = NULL;
 474         }
 475     }
 476
 477     return 0;
 478 }
 479
 480 /** The enter notify event handler.
 481  * \param data currently unused.
 482  * \param connection The connection to the X server.
 483  * \param ev The event.
 484  */
 485 static int
 486 event_handle_enternotify(void *data __attribute__ ((unused)),
 487                          xcb_connection_t *connection,
 488                          xcb_enter_notify_event_t *ev)
 489 {
 490     client_t *c;
 491     xembed_window_t *emwin;
 492     wibox_t *wibox;
 493     widget_t *w;
 494
 495     if(ev->mode != XCB_NOTIFY_MODE_NORMAL
 496        || (ev->root_x == globalconf.pointer_x
 497            && ev->root_y == globalconf.pointer_y))
 498         return 0;
 499
 500
 501     if((wibox = wibox_getbywin(ev->event))
 502        && (w = widget_getbycoords(wibox->position, &wibox->widgets,
 503                                   wibox->sw.geometry.width,
 504                                   wibox->sw.geometry.height,
 505                                   &ev->event_x, &ev->event_y)))
 506     {
 507         globalconf.pointer_x = ev->root_x;
 508         globalconf.pointer_y = ev->root_y;
 509         event_handle_widget_motionnotify(wibox, &wibox->mouse_over, w);
 510     }
 511     else if((c = client_getbytitlebarwin(ev->event))
 512        || (c = client_getbywin(ev->event)))
 513     {
 514         window_buttons_grab(c->win, ev->root, &c->buttons);
 515         /* The idea behind saving pointer_x and pointer_y is Bob Marley powered.
 516          * this will allow us top drop some EnterNotify events and thus not giving
 517          * focus to windows appering under the cursor without a cursor move */
 518         globalconf.pointer_x = ev->root_x;
 519         globalconf.pointer_y = ev->root_y;
 520
 521         if(globalconf.hooks.mouse_enter != LUA_REFNIL)
 522         {
 523             luaA_client_userdata_new(globalconf.L, c);
 524             luaA_dofunction(globalconf.L, globalconf.hooks.mouse_enter, 1, 0);
 525         }
 526     }
 527     else if((emwin = xembed_getbywin(&globalconf.embedded, ev->event)))
 528         xcb_ungrab_button(globalconf.connection, XCB_BUTTON_INDEX_ANY,
 529                           xutil_screen_get(connection, emwin->phys_screen)->root,
 530                           XCB_BUTTON_MASK_ANY);
 531     else if(ev->event == ev->root)
 532         window_root_buttons_grab(ev->root);
 533
 534     return 0;
 535 }
 536
 537 /** The expose event handler.
 538  * \param data currently unused.
 539  * \param connection The connection to the X server.
 540  * \param ev The event.
 541  */
 542 static int
 543 event_handle_expose(void *data __attribute__ ((unused)),
 544                     xcb_connection_t *connection __attribute__ ((unused)),
 545                     xcb_expose_event_t *ev)
 546 {
 547     wibox_t *wibox = wibox_getbywin(ev->window);
 548
 549     if(wibox)
 550         simplewindow_refresh_pixmap_partial(&wibox->sw,
 551                                             ev->x, ev->y,
 552                                             ev->width, ev->height);
 553
 554     return 0;
 555 }
 556
 557 /** The key press event handler.
 558  * \param data currently unused.
 559  * \param connection The connection to the X server.
 560  * \param ev The event.
 561  */
 562 static int
 563 event_handle_key(void *data __attribute__ ((unused)),
 564                  xcb_connection_t *connection __attribute__ ((unused)),
 565                  xcb_key_press_event_t *ev)
 566 {
 567     client_t *c;
 568
 569     if(globalconf.keygrabber != LUA_REFNIL)
 570     {
 571         lua_rawgeti(globalconf.L, LUA_REGISTRYINDEX, globalconf.keygrabber);
 572         if(keygrabber_handlekpress(globalconf.L, ev))
 573         {
 574             if(lua_pcall(globalconf.L, 3, 1, 0))
 575             {
 576                 warn("error running function: %s", lua_tostring(globalconf.L, -1));
 577                 luaA_keygrabber_stop(globalconf.L);
 578             }
 579             else if(!lua_isboolean(globalconf.L, -1) || !lua_toboolean(globalconf.L, -1))
 580                 luaA_keygrabber_stop(globalconf.L);
 581         }
 582         lua_pop(globalconf.L, 1);  /* pop returned value or function if not called */
 583     }
 584     else if((c = client_getbywin(ev->event)))
 585     {
 586         keyb_t *k = key_find(&c->keys, ev);
 587
 588         if(k)
 589             switch(ev->response_type)
 590             {
 591               case XCB_KEY_PRESS:
 592                 if(k->press != LUA_REFNIL)
 593                 {
 594                     luaA_client_userdata_new(globalconf.L, c);
 595                     luaA_dofunction(globalconf.L, k->press, 1, 0);
 596                 }
 597                 break;
 598               case XCB_KEY_RELEASE:
 599                 if(k->release != LUA_REFNIL)
 600                 {
 601                     luaA_client_userdata_new(globalconf.L, c);
 602                     luaA_dofunction(globalconf.L, k->release, 1, 0);
 603                 }
 604                 break;
 605             }
 606     }
 607     else
 608     {
 609         keyb_t *k = key_find(&globalconf.keys, ev);
 610
 611         if(k)
 612             switch(ev->response_type)
 613             {
 614               case XCB_KEY_PRESS:
 615                 if(k->press != LUA_REFNIL)
 616                     luaA_dofunction(globalconf.L, k->press, 0, 0);
 617                 break;
 618               case XCB_KEY_RELEASE:
 619                 if(k->release != LUA_REFNIL)
 620                     luaA_dofunction(globalconf.L, k->release, 0, 0);
 621                 break;
 622             }
 623     }
 624
 625     return 0;
 626 }
 627
 628 /** The map request event handler.
 629  * \param data currently unused.
 630  * \param connection The connection to the X server.
 631  * \param ev The event.
 632  */
 633 static int
 634 event_handle_maprequest(void *data __attribute__ ((unused)),
 635                         xcb_connection_t *connection, xcb_map_request_event_t *ev)
 636 {
 637     int phys_screen, ret = 0;
 638     client_t *c;
 639     xcb_get_window_attributes_cookie_t wa_c;
 640     xcb_get_window_attributes_reply_t *wa_r;
 641     xcb_get_geometry_cookie_t geom_c;
 642     xcb_get_geometry_reply_t *geom_r;
 643
 644     wa_c = xcb_get_window_attributes_unchecked(connection, ev->window);
 645
 646     if(!(wa_r = xcb_get_window_attributes_reply(connection, wa_c, NULL)))
 647         return -1;
 648
 649     if(wa_r->override_redirect)
 650         goto bailout;
 651
 652     if(xembed_getbywin(&globalconf.embedded, ev->window))
 653     {
 654         xcb_map_window(connection, ev->window);
 655         xembed_window_activate(connection, ev->window);
 656     }
 657     else if((c = client_getbywin(ev->window)))
 658     {
 659         /* Check that it may be visible, but not asked to be hidden */
 660         if(client_maybevisible(c, c->screen) && !c->ishidden)
 661         {
 662             client_setminimized(c, false);
 663             /* it will be raised, so just update ourself */
 664             client_raise(c);
 665         }
 666     }
 667     else
 668     {
 669         geom_c = xcb_get_geometry_unchecked(connection, ev->window);
 670
 671         if(!(geom_r = xcb_get_geometry_reply(connection, geom_c, NULL)))
 672         {
 673             ret = -1;
 674             goto bailout;
 675         }
 676
 677         phys_screen = xutil_root2screen(connection, geom_r->root);
 678
 679         client_manage(ev->window, geom_r, phys_screen, false);
 680
 681         p_delete(&geom_r);
 682     }
 683
 684 bailout:
 685     p_delete(&wa_r);
 686     return ret;
 687 }
 688
 689 /** The unmap notify event handler.
 690  * \param data currently unused.
 691  * \param connection The connection to the X server.
 692  * \param ev The event.
 693  */
 694 static int
 695 event_handle_unmapnotify(void *data __attribute__ ((unused)),
 696                          xcb_connection_t *connection, xcb_unmap_notify_event_t *ev)
 697 {
 698     client_t *c;
 699
 700     if((c = client_getbywin(ev->window)))
 701     {
 702         if(ev->event == xutil_screen_get(connection, c->phys_screen)->root
 703            && XCB_EVENT_SENT(ev)
 704            && window_state_get_reply(window_state_get_unchecked(c->win)) == XCB_WM_STATE_NORMAL)
 705             client_unmanage(c);
 706     }
 707     else
 708         for(int i = 0; i < globalconf.embedded.len; i++)
 709             if(globalconf.embedded.tab[i].win == ev->window)
 710             {
 711                 xembed_window_array_take(&globalconf.embedded, i);
 712                 for(int j = 0; j < globalconf.nscreen; j++)
 713                     widget_invalidate_bytype(j, widget_systray);
 714             }
 715
 716     return 0;
 717 }
 718
 719 /** The randr screen change notify event handler.
 720  * \param data currently unused.
 721  * \param connection The connection to the X server.
 722  * \param ev The event.
 723  */
 724 static int
 725 event_handle_randr_screen_change_notify(void *data __attribute__ ((unused)),
 726                                         xcb_connection_t *connection __attribute__ ((unused)),
 727                                         xcb_randr_screen_change_notify_event_t *ev)
 728 {
 729     if(!globalconf.have_randr)
 730         return -1;
 731
 732     /* Code  of  XRRUpdateConfiguration Xlib  function  ported to  XCB
 733      * (only the code relevant  to RRScreenChangeNotify) as the latter
 734      * doesn't provide this kind of function */
 735     if(ev->rotation & (XCB_RANDR_ROTATION_ROTATE_90 | XCB_RANDR_ROTATION_ROTATE_270))
 736         xcb_randr_set_screen_size(connection, ev->root, ev->height, ev->width,
 737                                   ev->mheight, ev->mwidth);
 738     else
 739         xcb_randr_set_screen_size(connection, ev->root, ev->width, ev->height,
 740                                   ev->mwidth, ev->mheight);
 741
 742     /* XRRUpdateConfiguration also executes the following instruction
 743      * but it's not useful because SubpixelOrder is not used at all at
 744      * the moment
 745      *
 746      * XRenderSetSubpixelOrder(dpy, snum, scevent->subpixel_order);
 747      */
 748
 749     awesome_restart();
 750
 751     return 0;
 752 }
 753
 754 /** The client message event handler.
 755  * \param data currently unused.
 756  * \param connection The connection to the X server.
 757  * \param ev The event.
 758  */
 759 static int
 760 event_handle_clientmessage(void *data __attribute__ ((unused)),
 761                            xcb_connection_t *connection,
 762                            xcb_client_message_event_t *ev)
 763 {
 764     client_t *c;
 765
 766     if(ev->type == WM_CHANGE_STATE)
 767     {
 768         if((c = client_getbywin(ev->window))
 769            && ev->format == 32
 770            && ev->data.data32[0] == XCB_WM_STATE_ICONIC)
 771             client_setminimized(c, true);
 772     }
 773     else if(ev->type == _XEMBED)
 774         return xembed_process_client_message(ev);
 775     else if(ev->type == _NET_SYSTEM_TRAY_OPCODE)
 776         return systray_process_client_message(ev);
 777     return ewmh_process_client_message(ev);
 778 }
 779
 780 /** The keymap change notify event handler.
 781  * \param data Unused data.
 782  * \param connection The connection to the X server.
 783  * \param ev The event.
 784  * \return Status code, 0 if everything's fine.
 785  */
 786 static int
 787 event_handle_mappingnotify(void *data,
 788                            xcb_connection_t *connection,
 789                            xcb_mapping_notify_event_t *ev)
 790 {
 791     xcb_get_modifier_mapping_cookie_t xmapping_cookie;
 792
 793     if(ev->request == XCB_MAPPING_MODIFIER
 794        || ev->request == XCB_MAPPING_KEYBOARD)
 795     {
 796         /* Send the request to get the NumLock, ShiftLock and CapsLock masks */
 797         xmapping_cookie = xcb_get_modifier_mapping_unchecked(globalconf.connection);
 798
 799         /* Free and then allocate the key symbols */
 800         xcb_key_symbols_free(globalconf.keysyms);
 801         globalconf.keysyms = xcb_key_symbols_alloc(globalconf.connection);
 802
 803         /* Process the reply of previously sent mapping request */
 804         xutil_lock_mask_get(globalconf.connection, xmapping_cookie,
 805                             globalconf.keysyms, &globalconf.numlockmask,
 806                             &globalconf.shiftlockmask, &globalconf.capslockmask);
 807
 808         int nscreen = xcb_setup_roots_length(xcb_get_setup(connection));
 809
 810         /* regrab everything */
 811         for(int phys_screen = 0; phys_screen < nscreen; phys_screen++)
 812         {
 813             xcb_screen_t *s = xutil_screen_get(globalconf.connection, phys_screen);
 814             /* yes XCB_BUTTON_MASK_ANY is also for grab_key even if it's look weird */
 815             xcb_ungrab_key(connection, XCB_GRAB_ANY, s->root, XCB_BUTTON_MASK_ANY);
 816             window_grabkeys(s->root, &globalconf.keys);
 817         }
 818
 819         for(client_t *c = globalconf.clients; c; c = c->next)
 820         {
 821             xcb_ungrab_key(connection, XCB_GRAB_ANY, c->win, XCB_BUTTON_MASK_ANY);
 822             window_grabkeys(c->win, &c->keys);
 823         }
 824     }
 825
 826     return 0;
 827 }
 828
 829 static int
 830 event_handle_reparentnotify(void *data,
 831                            xcb_connection_t *connection,
 832                            xcb_reparent_notify_event_t *ev)
 833 {
 834     client_t *c;
 835
 836     if((c = client_getbywin(ev->window)))
 837         client_unmanage(c);
 838
 839     return 0;
 840 }
 841
 842 void a_xcb_set_event_handlers(void)
 843 {
 844     const xcb_query_extension_reply_t *randr_query;
 845
 846     xcb_event_set_button_press_handler(&globalconf.evenths, event_handle_button, NULL);
 847     xcb_event_set_button_release_handler(&globalconf.evenths, event_handle_button, NULL);
 848     xcb_event_set_configure_request_handler(&globalconf.evenths, event_handle_configurerequest, NULL);
 849     xcb_event_set_configure_notify_handler(&globalconf.evenths, event_handle_configurenotify, NULL);
 850     xcb_event_set_destroy_notify_handler(&globalconf.evenths, event_handle_destroynotify, NULL);
 851     xcb_event_set_enter_notify_handler(&globalconf.evenths, event_handle_enternotify, NULL);
 852     xcb_event_set_leave_notify_handler(&globalconf.evenths, event_handle_leavenotify, NULL);
 853     xcb_event_set_motion_notify_handler(&globalconf.evenths, event_handle_motionnotify, NULL);
 854     xcb_event_set_expose_handler(&globalconf.evenths, event_handle_expose, NULL);
 855     xcb_event_set_key_press_handler(&globalconf.evenths, event_handle_key, NULL);
 856     xcb_event_set_key_release_handler(&globalconf.evenths, event_handle_key, NULL);
 857     xcb_event_set_map_request_handler(&globalconf.evenths, event_handle_maprequest, NULL);
 858     xcb_event_set_unmap_notify_handler(&globalconf.evenths, event_handle_unmapnotify, NULL);
 859     xcb_event_set_client_message_handler(&globalconf.evenths, event_handle_clientmessage, NULL);
 860     xcb_event_set_mapping_notify_handler(&globalconf.evenths, event_handle_mappingnotify, NULL);
 861     xcb_event_set_reparent_notify_handler(&globalconf.evenths, event_handle_reparentnotify, NULL);
 862
 863     /* check for randr extension */
 864     randr_query = xcb_get_extension_data(globalconf.connection, &xcb_randr_id);
 865     if((globalconf.have_randr = randr_query->present))
 866         xcb_event_set_handler(&globalconf.evenths,
 867                               randr_query->first_event + XCB_RANDR_SCREEN_CHANGE_NOTIFY,
 868                               (xcb_generic_event_handler_t) event_handle_randr_screen_change_notify,
 869                               NULL);
 870
 871 }
 872
 873 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80