window.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <stdarg.h>
   4 #include <string.h>
   5 #include <xcb/xcb.h>
   6 #include <xcb/xcb_event.h>
   7 #include <xcb/xcb_icccm.h>
   8 #include "types.h"
   9 #include "tree.h"
  10 #include "bspwm.h"
  11 #include "settings.h"
  12 #include "ewmh.h"
  13 #include "rules.h"
  14 #include "window.h"
  15
  16 bool locate_window(xcb_window_t win, window_location_t *loc)
  17 {
  18     for (monitor_t *m = mon_head; m != NULL; m = m->next)
  19         for (desktop_t *d = m->desk_head; d != NULL; d = d->next)
  20             for (node_t *n = first_extrema(d->root); n != NULL; n = next_leaf(n))
  21                 if (n->client->window == win) {
  22                     loc->monitor = m;
  23                     loc->desktop = d;
  24                     loc->node = n;
  25                     return true;
  26                 }
  27     return false;
  28 }
  29
  30 bool locate_desktop(char *name, desktop_location_t *loc)
  31 {
  32     monitor_t *m = mon_head;
  33     while (m != NULL) {
  34         desktop_t *d = m->desk_head;
  35         while (d != NULL) {
  36             if (strcmp(d->name, name) == 0) {
  37                 loc->monitor = m;
  38                 loc->desktop = d;
  39                 return true;
  40             }
  41             d = d->next;
  42         }
  43         m = m->next;
  44     }
  45     return false;
  46 }
  47
  48 void manage_window(xcb_window_t win)
  49 {
  50     window_location_t loc;
  51     xcb_get_window_attributes_reply_t *wa = xcb_get_window_attributes_reply(dpy, xcb_get_window_attributes(dpy, win), NULL);
  52     uint8_t override_redirect = 0;
  53
  54     if (wa != NULL) {
  55         override_redirect = wa->override_redirect;
  56         free(wa);
  57     }
  58
  59     if (override_redirect || locate_window(win, &loc))
  60         return;
  61
  62     bool floating = false, transient = false, fullscreen = false, takes_focus = true, manage = true;
  63
  64     handle_rules(win, &floating, &transient, &fullscreen, &takes_focus, &manage);
  65
  66     if (!manage) {
  67         window_show(win);
  68         return;
  69     }
  70
  71     desktop_t *desk = mon->desk;
  72     client_t *c = make_client(win);
  73     update_floating_rectangle(c);
  74
  75     xcb_icccm_get_wm_class_reply_t reply;
  76     if (xcb_icccm_get_wm_class_reply(dpy, xcb_icccm_get_wm_class(dpy, win), &reply, NULL) == 1) {
  77         strncpy(c->class_name, reply.class_name, sizeof(c->class_name));
  78         xcb_icccm_get_wm_class_reply_wipe(&reply);
  79     }
  80
  81     if (c->transient)
  82         floating = true;
  83
  84     node_t *birth = make_node();
  85     birth->client = c;
  86
  87     if (floating)
  88         split_mode = MODE_MANUAL;
  89
  90     insert_node(desk, birth);
  91
  92     if (floating)
  93         toggle_floating(birth);
  94
  95     if (desk->focus != NULL && desk->focus->client->fullscreen)
  96         toggle_fullscreen(mon, desk->focus->client);
  97
  98     if (fullscreen)
  99         toggle_fullscreen(mon, birth->client);
 100
 101     if (is_tiled(c))
 102         window_lower(c->window);
 103
 104     c->transient = transient;
 105
 106     if (takes_focus)
 107         focus_node(mon, desk, birth, false);
 108
 109     fit_monitor(mon, birth->client);
 110     arrange(mon, desk);
 111     window_show(c->window);
 112
 113     if (takes_focus)
 114         xcb_set_input_focus(dpy, XCB_INPUT_FOCUS_POINTER_ROOT, win, XCB_CURRENT_TIME);
 115
 116     uint32_t values[] = {CLIENT_EVENT_MASK};
 117     xcb_change_window_attributes(dpy, c->window, XCB_CW_EVENT_MASK, values);
 118
 119     num_clients++;
 120     ewmh_set_wm_desktop(birth, desk);
 121     ewmh_update_client_list();
 122 }
 123
 124 void window_draw_border(node_t *n, bool focused_window, bool focused_monitor)
 125 {
 126     if (n == NULL)
 127         return;
 128
 129     if (border_width < 1 || n->client->border_width < 1)
 130         return;
 131
 132     xcb_window_t win = n->client->window;
 133
 134     xcb_rectangle_t actual_rectangle = (is_tiled(n->client) ? n->client->tiled_rectangle : n->client->floating_rectangle);
 135
 136     uint16_t width = actual_rectangle.width;
 137     uint16_t height = actual_rectangle.height;
 138
 139     uint16_t full_width = width + 2 * border_width;
 140     uint16_t full_height = height + 2 * border_width;
 141
 142     xcb_rectangle_t inner_rectangles[] =
 143     {
 144         { width, 0, 2 * border_width, height + 2 * border_width },
 145         { 0, height, width + 2 * border_width, 2 * border_width }
 146     };
 147
 148     xcb_rectangle_t main_rectangles[] =
 149     {
 150         { width + inner_border_width, 0, 2 * (main_border_width + outer_border_width), height + 2 * border_width },
 151         { 0, height + inner_border_width, width + 2 * border_width, 2 * (main_border_width + outer_border_width) }
 152     };
 153
 154     xcb_rectangle_t outer_rectangles[] =
 155     {
 156         { width + inner_border_width + main_border_width, 0, 2 * outer_border_width, height + 2 * border_width },
 157         { 0, height + inner_border_width + main_border_width, width + 2 * border_width, 2 * outer_border_width }
 158     };
 159
 160     xcb_rectangle_t *presel_rectangles;
 161
 162     xcb_pixmap_t pix = xcb_generate_id(dpy);
 163     xcb_create_pixmap(dpy, root_depth, pix, win, full_width, full_height);
 164
 165     xcb_gcontext_t gc = xcb_generate_id(dpy);
 166     xcb_create_gc(dpy, gc, pix, 0, NULL);
 167
 168     uint32_t main_border_color_pxl = get_main_border_color(n->client, focused_window, focused_monitor);
 169
 170     /* inner border */
 171     if (inner_border_width > 0) {
 172         xcb_change_gc(dpy, gc, XCB_GC_FOREGROUND, &inner_border_color_pxl);
 173         xcb_poly_fill_rectangle(dpy, pix, gc, LENGTH(inner_rectangles), inner_rectangles);
 174     }
 175
 176     /* main border */
 177     if (main_border_width > 0) {
 178         xcb_change_gc(dpy, gc, XCB_GC_FOREGROUND, &main_border_color_pxl);
 179         xcb_poly_fill_rectangle(dpy, pix, gc, LENGTH(main_rectangles), main_rectangles);
 180     }
 181
 182     /* outer border */
 183     if (outer_border_width > 0) {
 184         xcb_change_gc(dpy, gc, XCB_GC_FOREGROUND, &outer_border_color_pxl);
 185         xcb_poly_fill_rectangle(dpy, pix, gc, LENGTH(outer_rectangles), outer_rectangles);
 186     }
 187
 188     if (split_mode == MODE_MANUAL && focused_monitor && focused_window) {
 189         uint16_t fence = (int16_t) (n->split_ratio * ((split_dir == DIR_UP || split_dir == DIR_DOWN) ? height : width));
 190         presel_rectangles = malloc(2 * sizeof(xcb_rectangle_t));
 191         switch (split_dir) {
 192             case DIR_UP:
 193                 presel_rectangles[0] = (xcb_rectangle_t) {width, 0, 2 * border_width, fence};
 194                 presel_rectangles[1] = (xcb_rectangle_t) {0, height + border_width, full_width, border_width};
 195                 break;
 196             case DIR_DOWN:
 197                 presel_rectangles[0] = (xcb_rectangle_t) {width, fence + 1, 2 * border_width, height + border_width - (fence + 1)};
 198                 presel_rectangles[1] = (xcb_rectangle_t) {0, height, full_width, border_width};
 199                 break;
 200             case DIR_LEFT:
 201                 presel_rectangles[0] = (xcb_rectangle_t) {0, height, fence, 2 * border_width};
 202                 presel_rectangles[1] = (xcb_rectangle_t) {width + border_width, 0, border_width, full_height};
 203                 break;
 204             case DIR_RIGHT:
 205                 presel_rectangles[0] = (xcb_rectangle_t) {fence + 1, height, width + border_width - (fence + 1), 2 * border_width};
 206                 presel_rectangles[1] = (xcb_rectangle_t) {width, 0, border_width, full_height};
 207                 break;
 208         }
 209         xcb_change_gc(dpy, gc, XCB_GC_FOREGROUND, &presel_border_color_pxl);
 210         xcb_poly_fill_rectangle(dpy, pix, gc, 2, presel_rectangles);
 211         free(presel_rectangles);
 212     }
 213
 214     /* apply border pixmap */
 215     xcb_change_window_attributes(dpy, win, XCB_CW_BORDER_PIXMAP, &pix);
 216
 217     xcb_free_gc(dpy, gc);
 218     xcb_free_pixmap(dpy, pix);
 219 }
 220
 221 void window_close(node_t *n)
 222 {
 223     if (n == NULL || n->client->locked)
 224         return;
 225
 226     PRINTF("close window %X\n", n->client->window);
 227
 228     xcb_atom_t WM_DELETE_WINDOW;
 229     xcb_window_t win = n->client->window;
 230     xcb_client_message_event_t e;
 231
 232     xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(dpy, xcb_intern_atom(dpy, 0, strlen("WM_DELETE_WINDOW"), "WM_DELETE_WINDOW"), NULL);
 233     if (reply) {
 234         WM_DELETE_WINDOW = reply->atom;
 235         free(reply);
 236     } else {
 237         warn("close_window %X: could not acquire WM_DELETE_WINDOW atom\n", win);
 238         return;
 239     }
 240
 241     e.response_type = XCB_CLIENT_MESSAGE;
 242     e.window = win;
 243     e.format = 32;
 244     e.sequence = 0;
 245     e.type = ewmh->WM_PROTOCOLS;
 246     e.data.data32[0] = WM_DELETE_WINDOW;
 247     e.data.data32[1] = XCB_CURRENT_TIME;
 248
 249     xcb_send_event(dpy, false, win, XCB_EVENT_MASK_NO_EVENT, (char *) &e);
 250 }
 251
 252 void window_kill(desktop_t *d, node_t *n)
 253 {
 254     if (n == NULL)
 255         return;
 256
 257     PRINTF("kill window %X\n", n->client->window);
 258
 259     xcb_kill_client(dpy, n->client->window);
 260     remove_node(d, n);
 261 }
 262
 263 void toggle_fullscreen(monitor_t *m, client_t *c)
 264 {
 265     PRINTF("toggle fullscreen %X\n", c->window);
 266
 267     if (c->fullscreen) {
 268         c->fullscreen = false;
 269         xcb_atom_t values[] = {XCB_NONE};
 270         xcb_ewmh_set_wm_state(ewmh, c->window, LENGTH(values), values);
 271         if (is_tiled(c))
 272             window_lower(c->window);
 273     } else {
 274         c->fullscreen = true;
 275         xcb_atom_t values[] = {ewmh->_NET_WM_STATE_FULLSCREEN};
 276         xcb_ewmh_set_wm_state(ewmh, c->window, LENGTH(values), values);
 277         window_raise(c->window);
 278         window_border_width(c->window, 0);
 279         xcb_rectangle_t r = m->rectangle;
 280         window_move_resize(c->window, r.x, r.y, r.width, r.height);
 281     }
 282 }
 283
 284 void toggle_floating(node_t *n)
 285 {
 286     if (n == NULL || n->client->transient)
 287         return;
 288
 289     PRINTF("toggle floating %X\n", n->client->window);
 290
 291     client_t *c = n->client;
 292     c->floating = !c->floating;
 293     n->vacant = !n->vacant;
 294     update_vacant_state(n->parent);
 295     if (c->floating)
 296         window_raise(c->window);
 297     else if (is_tiled(c))
 298         window_lower(c->window);
 299 }
 300
 301 void toggle_locked(client_t *c)
 302 {
 303     PRINTF("toggle locked %X\n", c->window);
 304
 305     c->locked = !c->locked;
 306 }
 307
 308 void list_windows(char *rsp)
 309 {
 310     char line[MAXLEN];
 311
 312     for (monitor_t *m = mon_head; m != NULL; m = m->next)
 313         for (desktop_t *d = m->desk_head; d != NULL; d = d->next)
 314             for (node_t *n = first_extrema(d->root); n != NULL; n = next_leaf(n)) {
 315                 snprintf(line, sizeof(line), "0x%X\n", n->client->window);
 316                 strncat(rsp, line, REMLEN(rsp));
 317             }
 318 }
 319
 320 uint32_t get_main_border_color(client_t *c, bool focused_window, bool focused_monitor)
 321 {
 322     if (c == NULL)
 323         return 0;
 324
 325     if (focused_monitor && focused_window) {
 326         if (c->locked)
 327             return focused_locked_border_color_pxl;
 328         else
 329             return focused_border_color_pxl;
 330     } else if (focused_window) {
 331         if (c->locked)
 332             return active_locked_border_color_pxl;
 333         else
 334             return active_border_color_pxl;
 335     } else {
 336         if (c->urgent)
 337             return urgent_border_color_pxl;
 338         else if (c->locked)
 339             return normal_locked_border_color_pxl;
 340         else
 341             return normal_border_color_pxl;
 342     }
 343 }
 344
 345 void update_floating_rectangle(client_t *c)
 346 {
 347     xcb_get_geometry_reply_t *geom = xcb_get_geometry_reply(dpy, xcb_get_geometry(dpy, c->window), NULL);
 348
 349     if (geom) {
 350         c->floating_rectangle = (xcb_rectangle_t) {geom->x, geom->y, geom->width, geom->height};
 351         free(geom);
 352     } else {
 353         c->floating_rectangle = (xcb_rectangle_t) {0, 0, 32, 24};
 354     }
 355 }
 356
 357 void window_border_width(xcb_window_t win, uint32_t bw)
 358 {
 359     uint32_t values[] = {bw};
 360     xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_BORDER_WIDTH, values);
 361 }
 362
 363 void window_move(xcb_window_t win, int16_t x, int16_t y)
 364 {
 365     uint32_t values[] = {x, y};
 366     xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_X_Y, values);
 367 }
 368
 369 void window_move_resize(xcb_window_t win, int16_t x, int16_t y, uint16_t w, uint16_t h)
 370 {
 371     uint32_t values[] = {x, y, w, h};
 372     xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_X_Y_WIDTH_HEIGHT, values);
 373 }
 374
 375 void window_raise(xcb_window_t win)
 376 {
 377     uint32_t values[] = {XCB_STACK_MODE_ABOVE};
 378     xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_STACK_MODE, values);
 379 }
 380
 381 void window_lower(xcb_window_t win)
 382 {
 383     uint32_t values[] = {XCB_STACK_MODE_BELOW};
 384     xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_STACK_MODE, values);
 385 }
 386
 387 void window_set_visibility(xcb_window_t win, bool visible) {
 388     uint32_t values_off[] = {ROOT_EVENT_MASK & ~XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY};
 389     uint32_t values_on[] = {ROOT_EVENT_MASK};
 390     xcb_change_window_attributes(dpy, screen->root, XCB_CW_EVENT_MASK, values_off);
 391     if (visible)
 392         xcb_map_window(dpy, win);
 393     else
 394         xcb_unmap_window(dpy, win);
 395     xcb_change_window_attributes(dpy, screen->root, XCB_CW_EVENT_MASK, values_on);
 396 }
 397
 398 void window_hide(xcb_window_t win)
 399 {
 400     window_set_visibility(win, false);
 401 }
 402
 403 void window_show(xcb_window_t win)
 404 {
 405     window_set_visibility(win, true);
 406 }