events.c

   1 /* Copyright (c) 2012, Bastien Dejean
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are met:
   6  *
   7  * 1. Redistributions of source code must retain the above copyright notice, this
   8  *    list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright notice,
  10  *    this list of conditions and the following disclaimer in the documentation
  11  *    and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  16  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  17  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  20  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  */
  24
  25 #include <stdlib.h>
  26 #include "bspwm.h"
  27 #include "ewmh.h"
  28 #include "monitor.h"
  29 #include "query.h"
  30 #include "settings.h"
  31 #include "tree.h"
  32 #include "window.h"
  33 #include "events.h"
  34
  35 void handle_event(xcb_generic_event_t *evt)
  36 {
  37         uint8_t resp_type = XCB_EVENT_RESPONSE_TYPE(evt);
  38         switch (resp_type) {
  39                 case XCB_MAP_REQUEST:
  40                         map_request(evt);
  41                         break;
  42                 case XCB_DESTROY_NOTIFY:
  43                         destroy_notify(evt);
  44                         break;
  45                 case XCB_UNMAP_NOTIFY:
  46                         unmap_notify(evt);
  47                         break;
  48                 case XCB_CLIENT_MESSAGE:
  49                         client_message(evt);
  50                         break;
  51                 case XCB_CONFIGURE_REQUEST:
  52                         configure_request(evt);
  53                         break;
  54                 case XCB_PROPERTY_NOTIFY:
  55                         property_notify(evt);
  56                         break;
  57                 case XCB_ENTER_NOTIFY:
  58                         enter_notify(evt);
  59                         break;
  60                 case XCB_MOTION_NOTIFY:
  61                         motion_notify(evt);
  62                         break;
  63                 case XCB_FOCUS_IN:
  64                         focus_in(evt);
  65                         break;
  66                 default:
  67                         if (randr && resp_type == randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY)
  68                                 update_monitors();
  69                         break;
  70         }
  71 }
  72
  73 void map_request(xcb_generic_event_t *evt)
  74 {
  75         xcb_map_request_event_t *e = (xcb_map_request_event_t *) evt;
  76
  77         PRINTF("map request %X\n", e->window);
  78
  79         schedule_window(e->window);
  80 }
  81
  82 void configure_request(xcb_generic_event_t *evt)
  83 {
  84         xcb_configure_request_event_t *e = (xcb_configure_request_event_t *) evt;
  85
  86         PRINTF("configure request %X\n", e->window);
  87
  88         coordinates_t loc;
  89         bool is_managed = locate_window(e->window, &loc);
  90         client_t *c = (is_managed ? loc.node->client : NULL);
  91         int w = 0, h = 0;
  92
  93         if (is_managed && !is_floating(c)) {
  94                 if (e->value_mask & XCB_CONFIG_WINDOW_X)
  95                         c->floating_rectangle.x = e->x;
  96                 if (e->value_mask & XCB_CONFIG_WINDOW_Y)
  97                         c->floating_rectangle.y = e->y;
  98                 if (e->value_mask & XCB_CONFIG_WINDOW_WIDTH)
  99                         w = e->width;
 100                 if (e->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
 101                         h = e->height;
 102
 103                 if (w != 0) {
 104                         restrain_floating_width(c, &w);
 105                         c->floating_rectangle.width = w;
 106                 }
 107
 108                 if (h != 0) {
 109                         restrain_floating_height(c, &h);
 110                         c->floating_rectangle.height = h;
 111                 }
 112
 113                 xcb_configure_notify_event_t evt;
 114                 xcb_rectangle_t rect;
 115                 xcb_window_t win = c->window;
 116                 unsigned int bw = c->border_width;
 117
 118                 if (c->fullscreen)
 119                         rect = loc.monitor->rectangle;
 120                 else
 121                         rect = c->tiled_rectangle;
 122
 123                 evt.response_type = XCB_CONFIGURE_NOTIFY;
 124                 evt.event = win;
 125                 evt.window = win;
 126                 evt.above_sibling = XCB_NONE;
 127                 evt.x = rect.x;
 128                 evt.y = rect.y;
 129                 evt.width = rect.width;
 130                 evt.height = rect.height;
 131                 evt.border_width = bw;
 132                 evt.override_redirect = false;
 133
 134                 xcb_send_event(dpy, false, win, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (const char *) &evt);
 135
 136                 if (c->pseudo_tiled)
 137                         arrange(loc.monitor, loc.desktop);
 138         } else {
 139                 uint16_t mask = 0;
 140                 uint32_t values[7];
 141                 unsigned short i = 0;
 142
 143                 if (e->value_mask & XCB_CONFIG_WINDOW_X) {
 144                         mask |= XCB_CONFIG_WINDOW_X;
 145                         values[i++] = e->x;
 146                         if (is_managed)
 147                                 c->floating_rectangle.x = e->x;
 148                 }
 149
 150                 if (e->value_mask & XCB_CONFIG_WINDOW_Y) {
 151                         mask |= XCB_CONFIG_WINDOW_Y;
 152                         values[i++] = e->y;
 153                         if (is_managed)
 154                                 c->floating_rectangle.y = e->y;
 155                 }
 156
 157                 if (e->value_mask & XCB_CONFIG_WINDOW_WIDTH) {
 158                         mask |= XCB_CONFIG_WINDOW_WIDTH;
 159                         w = e->width;
 160                         if (is_managed) {
 161                                 restrain_floating_width(c, &w);
 162                                 c->floating_rectangle.width = w;
 163                         }
 164                         values[i++] = w;
 165                 }
 166
 167                 if (e->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
 168                         mask |= XCB_CONFIG_WINDOW_HEIGHT;
 169                         h = e->height;
 170                         if (is_managed) {
 171                                 restrain_floating_height(c, &h);
 172                                 c->floating_rectangle.height = h;
 173                         }
 174                         values[i++] = h;
 175                 }
 176
 177                 if (!is_managed && e->value_mask & XCB_CONFIG_WINDOW_BORDER_WIDTH) {
 178                         mask |= XCB_CONFIG_WINDOW_BORDER_WIDTH;
 179                         values[i++] = e->border_width;
 180                 }
 181
 182                 if (e->value_mask & XCB_CONFIG_WINDOW_SIBLING) {
 183                         mask |= XCB_CONFIG_WINDOW_SIBLING;
 184                         values[i++] = e->sibling;
 185                 }
 186
 187                 if (e->value_mask & XCB_CONFIG_WINDOW_STACK_MODE) {
 188                         mask |= XCB_CONFIG_WINDOW_STACK_MODE;
 189                         values[i++] = e->stack_mode;
 190                 }
 191
 192                 xcb_configure_window(dpy, e->window, mask, values);
 193         }
 194
 195         if (is_managed)
 196                 translate_client(monitor_from_client(c), loc.monitor, c);
 197 }
 198
 199 void destroy_notify(xcb_generic_event_t *evt)
 200 {
 201         xcb_destroy_notify_event_t *e = (xcb_destroy_notify_event_t *) evt;
 202
 203         PRINTF("destroy notify %X\n", e->window);
 204
 205         unmanage_window(e->window);
 206 }
 207
 208 void unmap_notify(xcb_generic_event_t *evt)
 209 {
 210         xcb_unmap_notify_event_t *e = (xcb_unmap_notify_event_t *) evt;
 211
 212         PRINTF("unmap notify %X\n", e->window);
 213
 214         unmanage_window(e->window);
 215 }
 216
 217 void property_notify(xcb_generic_event_t *evt)
 218 {
 219         xcb_property_notify_event_t *e = (xcb_property_notify_event_t *) evt;
 220
 221         /* PRINTF("property notify %X\n", e->window); */
 222
 223         if (e->atom != XCB_ATOM_WM_HINTS && e->atom != XCB_ATOM_WM_NORMAL_HINTS)
 224                 return;
 225
 226         coordinates_t loc;
 227         if (!locate_window(e->window, &loc))
 228                         return;
 229
 230         if (e->atom == XCB_ATOM_WM_HINTS) {
 231                 xcb_icccm_wm_hints_t hints;
 232                 if (xcb_icccm_get_wm_hints_reply(dpy, xcb_icccm_get_wm_hints(dpy, e->window), &hints, NULL) == 1 &&
 233                     (hints.flags & XCB_ICCCM_WM_HINT_X_URGENCY))
 234                         set_urgency(loc.monitor, loc.desktop, loc.node, xcb_icccm_wm_hints_get_urgency(&hints));
 235         } else if (e->atom == XCB_ATOM_WM_NORMAL_HINTS) {
 236                 client_t *c = loc.node->client;
 237                 xcb_size_hints_t size_hints;
 238                 if (xcb_icccm_get_wm_normal_hints_reply(dpy, xcb_icccm_get_wm_normal_hints(dpy, e->window), &size_hints, NULL) == 1 &&
 239                     (size_hints.flags & (XCB_ICCCM_SIZE_HINT_P_MIN_SIZE | XCB_ICCCM_SIZE_HINT_P_MAX_SIZE))) {
 240                         c->min_width = size_hints.min_width;
 241                         c->max_width = size_hints.max_width;
 242                         c->min_height = size_hints.min_height;
 243                         c->max_height = size_hints.max_height;
 244                         int w = c->floating_rectangle.width;
 245                         int h = c->floating_rectangle.height;
 246                         restrain_floating_size(c, &w, &h);
 247                         c->floating_rectangle.width = w;
 248                         c->floating_rectangle.height = h;
 249                         arrange(loc.monitor, loc.desktop);
 250                 }
 251         }
 252 }
 253
 254 void client_message(xcb_generic_event_t *evt)
 255 {
 256         xcb_client_message_event_t *e = (xcb_client_message_event_t *) evt;
 257
 258         PRINTF("client message %X %u\n", e->window, e->type);
 259
 260         if (e->type == ewmh->_NET_CURRENT_DESKTOP) {
 261                 coordinates_t loc;
 262                 if (ewmh_locate_desktop(e->data.data32[0], &loc))
 263                         focus_node(loc.monitor, loc.desktop, loc.desktop->focus);
 264                 return;
 265         }
 266
 267         coordinates_t loc;
 268         if (!locate_window(e->window, &loc))
 269                 return;
 270
 271         if (e->type == ewmh->_NET_WM_STATE) {
 272                 handle_state(loc.monitor, loc.desktop, loc.node, e->data.data32[1], e->data.data32[0]);
 273                 handle_state(loc.monitor, loc.desktop, loc.node, e->data.data32[2], e->data.data32[0]);
 274         } else if (e->type == ewmh->_NET_ACTIVE_WINDOW) {
 275                 if ((ignore_ewmh_focus && e->data.data32[0] == XCB_EWMH_CLIENT_SOURCE_TYPE_NORMAL) ||
 276                     loc.node == mon->desk->focus)
 277                         return;
 278                 if (loc.desktop->focus->client->fullscreen && loc.desktop->focus != loc.node) {
 279                         set_fullscreen(loc.desktop->focus, false);
 280                         arrange(loc.monitor, loc.desktop);
 281                 }
 282                 focus_node(loc.monitor, loc.desktop, loc.node);
 283         } else if (e->type == ewmh->_NET_WM_DESKTOP) {
 284                 coordinates_t dloc;
 285                 if (ewmh_locate_desktop(e->data.data32[0], &dloc))
 286                         transfer_node(loc.monitor, loc.desktop, loc.node, dloc.monitor, dloc.desktop, dloc.desktop->focus);
 287         } else if (e->type == ewmh->_NET_CLOSE_WINDOW) {
 288                 window_close(loc.node);
 289         }
 290 }
 291
 292 void focus_in(xcb_generic_event_t *evt)
 293 {
 294         xcb_focus_in_event_t *e = (xcb_focus_in_event_t *) evt;
 295
 296         /* PRINTF("focus in %X %d %d\n", e->event, e->mode, e->detail); */
 297
 298         if (e->mode == XCB_NOTIFY_MODE_GRAB ||
 299             e->mode == XCB_NOTIFY_MODE_UNGRAB)
 300                 return;
 301         /* prevent focus stealing */
 302         if ((e->detail == XCB_NOTIFY_DETAIL_ANCESTOR ||
 303              e->detail == XCB_NOTIFY_DETAIL_INFERIOR ||
 304              e->detail == XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL ||
 305              e->detail == XCB_NOTIFY_DETAIL_NONLINEAR) &&
 306             (mon->desk->focus == NULL ||
 307              mon->desk->focus->client->window != e->event))
 308                 update_input_focus();
 309 }
 310
 311 void enter_notify(xcb_generic_event_t *evt)
 312 {
 313         xcb_enter_notify_event_t *e = (xcb_enter_notify_event_t *) evt;
 314         xcb_window_t win = e->event;
 315
 316         PRINTF("enter notify %X %d %d\n", win, e->mode, e->detail);
 317
 318         if (e->mode != XCB_NOTIFY_MODE_NORMAL ||
 319             (mon->desk->focus != NULL &&
 320              mon->desk->focus->client->window == win))
 321                 return;
 322
 323         enable_motion_recorder();
 324 }
 325
 326 void motion_notify(xcb_generic_event_t *evt)
 327 {
 328         PUTS("motion notify");
 329
 330         xcb_motion_notify_event_t *e = (xcb_motion_notify_event_t *) evt;
 331
 332         int dtime = e->time - last_motion_time;
 333         if (dtime > 1000) {
 334                 last_motion_time = e->time;
 335                 last_motion_x = e->event_x;
 336                 last_motion_y = e->event_y;
 337                 return;
 338         }
 339
 340         int mdist = abs(e->event_x - last_motion_x) + abs(e->event_y - last_motion_y);
 341         if (mdist < 10)
 342                 return;
 343
 344         disable_motion_recorder();
 345
 346         xcb_window_t win = XCB_NONE;
 347         xcb_point_t pt = {e->root_x, e->root_y};
 348         query_pointer(&win, NULL);
 349
 350         bool backup = pointer_follows_monitor;
 351         auto_raise = false;
 352         pointer_follows_monitor = false;
 353         if (!window_focus(win)) {
 354                 monitor_t *m = monitor_from_point(pt);
 355                 if (m != NULL && m != mon)
 356                         focus_node(m, m->desk, m->desk->focus);
 357         }
 358         pointer_follows_monitor = backup;
 359         auto_raise = true;
 360 }
 361
 362 void handle_state(monitor_t *m, desktop_t *d, node_t *n, xcb_atom_t state, unsigned int action)
 363 {
 364         if (state == ewmh->_NET_WM_STATE_FULLSCREEN) {
 365                 if (action == XCB_EWMH_WM_STATE_ADD)
 366                         set_fullscreen(n, true);
 367                 else if (action == XCB_EWMH_WM_STATE_REMOVE)
 368                         set_fullscreen(n, false);
 369                 else if (action == XCB_EWMH_WM_STATE_TOGGLE)
 370                         set_fullscreen(n, !n->client->fullscreen);
 371                 arrange(m, d);
 372         } else if (state == ewmh->_NET_WM_STATE_STICKY) {
 373                 if (action == XCB_EWMH_WM_STATE_ADD)
 374                         set_sticky(m, d, n, true);
 375                 else if (action == XCB_EWMH_WM_STATE_REMOVE)
 376                         set_sticky(m, d, n, false);
 377                 else if (action == XCB_EWMH_WM_STATE_TOGGLE)
 378                         set_sticky(m, d, n, !n->client->sticky);
 379         } else if (state == ewmh->_NET_WM_STATE_DEMANDS_ATTENTION) {
 380                 if (action == XCB_EWMH_WM_STATE_ADD)
 381                         set_urgency(m, d, n, true);
 382                 else if (action == XCB_EWMH_WM_STATE_REMOVE)
 383                         set_urgency(m, d, n, false);
 384                 else if (action == XCB_EWMH_WM_STATE_TOGGLE)
 385                         set_urgency(m, d, n, !n->client->urgent);
 386         }
 387 }