openbox/focus_cycle.c (raw)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 |
/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*- focus_cycle.c for the Openbox window manager Copyright (c) 2006 Mikael Magnusson Copyright (c) 2003-2007 Dana Jansens This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. See the COPYING file for a copy of the GNU General Public License. */ #include "focus_cycle.h" #include "focus_cycle_indicator.h" #include "focus_cycle_popup.h" #include "client.h" #include "frame.h" #include "focus.h" #include "screen.h" #include "openbox.h" #include "debug.h" #include "group.h" #include <X11/Xlib.h> #include <glib.h> ObClient *focus_cycle_target = NULL; static gboolean focus_cycle_iconic_windows; static gboolean focus_cycle_all_desktops; static gboolean focus_cycle_dock_windows; static gboolean focus_cycle_desktop_windows; static gboolean focus_target_has_siblings (ObClient *ft, gboolean iconic_windows, gboolean all_desktops); static ObClient *focus_find_directional (ObClient *c, ObDirection dir, gboolean dock_windows, gboolean desktop_windows); void focus_cycle_startup(gboolean reconfig) { if (reconfig) return; } void focus_cycle_shutdown(gboolean reconfig) { if (reconfig) return; } void focus_cycle_stop(ObClient *ifclient) { /* stop focus cycling if the given client is a valid focus target, and so the cycling is being disrupted */ if (focus_cycle_target && ifclient && focus_cycle_target_valid(ifclient, focus_cycle_iconic_windows, focus_cycle_all_desktops, focus_cycle_dock_windows, focus_cycle_desktop_windows)) { focus_cycle(TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE); focus_directional_cycle(0, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE); } } /*! Returns if a focus target has valid group siblings that can be cycled to in its place */ static gboolean focus_target_has_siblings(ObClient *ft, gboolean iconic_windows, gboolean all_desktops) { GSList *it; if (!ft->group) return FALSE; for (it = ft->group->members; it; it = g_slist_next(it)) { ObClient *c = it->data; /* check that it's not a helper window to avoid infinite recursion */ if (c != ft && !client_helper(c) && focus_cycle_target_valid(c, iconic_windows, all_desktops, FALSE, FALSE)) { return TRUE; } } return FALSE; } gboolean focus_cycle_target_valid(ObClient *ft, gboolean iconic_windows, gboolean all_desktops, gboolean dock_windows, gboolean desktop_windows) { gboolean ok = FALSE; /* it's on this desktop unless you want all desktops. do this check first because it will usually filter out the most windows */ ok = (all_desktops || ft->desktop == screen_desktop || ft->desktop == DESKTOP_ALL); /* the window can receive focus somehow */ ok = ok && (ft->can_focus || ft->focus_notify); /* the window is not iconic, or we're allowed to go to iconic ones */ ok = ok && (iconic_windows || !ft->iconic); /* it's the right type of window */ if (dock_windows || desktop_windows) ok = ok && ((dock_windows && ft->type == OB_CLIENT_TYPE_DOCK) || (desktop_windows && ft->type == OB_CLIENT_TYPE_DESKTOP)); /* modal windows are important and can always get focus if they are visible and stuff, so don't change 'ok' based on their type */ else if (!ft->modal) /* normal non-helper windows are valid targets */ ok = ok && ((client_normal(ft) && !client_helper(ft)) || /* helper windows are valid targets it... */ (client_helper(ft) && /* ...a window in its group already has focus ... */ ((focus_client && ft->group == focus_client->group) || /* ... or if there are no other windows in its group that can be cycled to instead */ !focus_target_has_siblings(ft, iconic_windows, all_desktops)))); /* it's not set to skip the taskbar (unless it is a type that would be expected to set this hint, or modal) */ ok = ok && ((ft->type == OB_CLIENT_TYPE_DOCK || ft->type == OB_CLIENT_TYPE_DESKTOP || ft->type == OB_CLIENT_TYPE_TOOLBAR || ft->type == OB_CLIENT_TYPE_MENU || ft->type == OB_CLIENT_TYPE_UTILITY) || ft->modal || !ft->skip_taskbar); /* it's not going to just send focus off somewhere else (modal window), unless that modal window is not one of our valid targets, then let you choose this window and bring the modal one here */ { ObClient *cft = client_focus_target(ft); ok = ok && (ft == cft || !focus_cycle_target_valid(cft, iconic_windows, all_desktops, dock_windows, desktop_windows)); } return ok; } void focus_cycle(gboolean forward, gboolean all_desktops, gboolean dock_windows, gboolean desktop_windows, gboolean linear, gboolean interactive, gboolean dialog, gboolean done, gboolean cancel) { static ObClient *t = NULL; static GList *order = NULL; GList *it, *start, *list; ObClient *ft = NULL; if (interactive) { if (cancel) { focus_cycle_target = NULL; goto done_cycle; } else if (done) goto done_cycle; if (!focus_order) goto done_cycle; if (linear) list = client_list; else list = focus_order; } else { if (!focus_order) goto done_cycle; list = client_list; } if (focus_cycle_target == NULL) { focus_cycle_iconic_windows = TRUE; focus_cycle_all_desktops = all_desktops; focus_cycle_dock_windows = dock_windows; focus_cycle_desktop_windows = desktop_windows; start = it = g_list_find(list, focus_client); } else start = it = g_list_find(list, focus_cycle_target); if (!start) /* switched desktops or something? */ start = it = forward ? g_list_last(list) : g_list_first(list); if (!start) goto done_cycle; do { if (forward) { it = it->next; if (it == NULL) it = g_list_first(list); } else { it = it->prev; if (it == NULL) it = g_list_last(list); } ft = it->data; if (focus_cycle_target_valid(ft, focus_cycle_iconic_windows, focus_cycle_all_desktops, focus_cycle_dock_windows, focus_cycle_desktop_windows)) { if (interactive) { if (ft != focus_cycle_target) { /* prevents flicker */ focus_cycle_target = ft; focus_cycle_draw_indicator(ft); } if (dialog) /* same arguments as focus_target_valid */ focus_cycle_popup_show(ft, focus_cycle_iconic_windows, focus_cycle_all_desktops, focus_cycle_dock_windows, focus_cycle_desktop_windows); return; } else if (ft != focus_cycle_target) { focus_cycle_target = ft; done = TRUE; break; } } } while (it != start); done_cycle: if (done && focus_cycle_target) client_activate(focus_cycle_target, FALSE, TRUE); t = NULL; focus_cycle_target = NULL; g_list_free(order); order = NULL; if (interactive) { focus_cycle_draw_indicator(NULL); focus_cycle_popup_hide(); } return; } /* this be mostly ripped from fvwm */ static ObClient *focus_find_directional(ObClient *c, ObDirection dir, gboolean dock_windows, gboolean desktop_windows) { gint my_cx, my_cy, his_cx, his_cy; gint offset = 0; gint distance = 0; gint score, best_score; ObClient *best_client, *cur; GList *it; if (!client_list) return NULL; /* first, find the centre coords of the currently focused window */ my_cx = c->frame->area.x + c->frame->area.width / 2; my_cy = c->frame->area.y + c->frame->area.height / 2; best_score = -1; best_client = c; for (it = g_list_first(client_list); it; it = g_list_next(it)) { cur = it->data; /* the currently selected window isn't interesting */ if (cur == c) continue; if (!focus_cycle_target_valid(it->data, FALSE, FALSE, dock_windows, desktop_windows)) continue; /* find the centre coords of this window, from the * currently focused window's point of view */ his_cx = (cur->frame->area.x - my_cx) + cur->frame->area.width / 2; his_cy = (cur->frame->area.y - my_cy) + cur->frame->area.height / 2; if (dir == OB_DIRECTION_NORTHEAST || dir == OB_DIRECTION_SOUTHEAST || dir == OB_DIRECTION_SOUTHWEST || dir == OB_DIRECTION_NORTHWEST) { gint tx; /* Rotate the diagonals 45 degrees counterclockwise. * To do this, multiply the matrix /+h +h\ with the * vector (x y). \-h +h/ * h = sqrt(0.5). We can set h := 1 since absolute * distance doesn't matter here. */ tx = his_cx + his_cy; his_cy = -his_cx + his_cy; his_cx = tx; } switch (dir) { case OB_DIRECTION_NORTH: case OB_DIRECTION_SOUTH: case OB_DIRECTION_NORTHEAST: case OB_DIRECTION_SOUTHWEST: offset = (his_cx < 0) ? -his_cx : his_cx; distance = ((dir == OB_DIRECTION_NORTH || dir == OB_DIRECTION_NORTHEAST) ? -his_cy : his_cy); break; case OB_DIRECTION_EAST: case OB_DIRECTION_WEST: case OB_DIRECTION_SOUTHEAST: case OB_DIRECTION_NORTHWEST: offset = (his_cy < 0) ? -his_cy : his_cy; distance = ((dir == OB_DIRECTION_WEST || dir == OB_DIRECTION_NORTHWEST) ? -his_cx : his_cx); break; } /* the target must be in the requested direction */ if (distance <= 0) continue; /* Calculate score for this window. The smaller the better. */ score = distance + offset; /* windows more than 45 degrees off the direction are * heavily penalized and will only be chosen if nothing * else within a million pixels */ if (offset > distance) score += 1000000; if (best_score == -1 || score < best_score) { best_client = cur; best_score = score; } } return best_client; } void focus_directional_cycle(ObDirection dir, gboolean dock_windows, gboolean desktop_windows, gboolean interactive, gboolean dialog, gboolean done, gboolean cancel) { static ObClient *first = NULL; ObClient *ft = NULL; if (!interactive) return; if (cancel) { focus_cycle_target = NULL; goto done_cycle; } else if (done) goto done_cycle; if (!focus_order) goto done_cycle; if (focus_cycle_target == NULL) { focus_cycle_iconic_windows = FALSE; focus_cycle_all_desktops = FALSE; focus_cycle_dock_windows = dock_windows; focus_cycle_desktop_windows = desktop_windows; } if (!first) first = focus_client; if (focus_cycle_target) ft = focus_find_directional(focus_cycle_target, dir, dock_windows, desktop_windows); else if (first) ft = focus_find_directional(first, dir, dock_windows, desktop_windows); else { GList *it; for (it = focus_order; it; it = g_list_next(it)) if (focus_cycle_target_valid(it->data, focus_cycle_iconic_windows, focus_cycle_all_desktops, focus_cycle_dock_windows, focus_cycle_desktop_windows)) ft = it->data; } if (ft) { if (ft != focus_cycle_target) {/* prevents flicker */ focus_cycle_target = ft; focus_cycle_draw_indicator(ft); } } if (focus_cycle_target && dialog) { /* same arguments as focus_target_valid */ focus_cycle_popup_single_show(focus_cycle_target, focus_cycle_iconic_windows, focus_cycle_all_desktops, focus_cycle_dock_windows, focus_cycle_desktop_windows); return; } done_cycle: if (done && focus_cycle_target) client_activate(focus_cycle_target, FALSE, TRUE); first = NULL; focus_cycle_target = NULL; focus_cycle_draw_indicator(NULL); focus_cycle_popup_single_hide(); return; } |