openbox/stacking.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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 |
/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*- stacking.c for the Openbox window manager Copyright (c) 2006 Mikael Magnusson Copyright (c) 2003 Ben 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 "openbox.h" #include "prop.h" #include "screen.h" #include "focus.h" #include "client.h" #include "group.h" #include "frame.h" #include "window.h" GList *stacking_list = NULL; void stacking_set_list() { Window *windows = NULL; GList *it; guint i = 0; /* on shutdown, don't update the properties, so that we can read it back in on startup and re-stack the windows as they were before we shut down */ if (ob_state() == OB_STATE_EXITING) return; /* create an array of the window ids (from bottom to top, reverse order!) */ if (stacking_list) { windows = g_new(Window, g_list_length(stacking_list)); for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) { if (WINDOW_IS_CLIENT(it->data)) windows[i++] = WINDOW_AS_CLIENT(it->data)->window; } } PROP_SETA32(RootWindow(ob_display, ob_screen), net_client_list_stacking, window, (gulong*)windows, i); g_free(windows); } static void do_restack(GList *wins, GList *before) { GList *it; Window *win; gint i; #ifdef DEBUG GList *next; /* pls only restack stuff in the same layer at a time */ for (it = wins; it; it = next) { next = g_list_next(it); if (!next) break; g_assert (window_layer(it->data) == window_layer(next->data)); } if (before) g_assert(window_layer(it->data) >= window_layer(before->data)); #endif win = g_new(Window, g_list_length(wins) + 1); if (before == stacking_list) win[0] = screen_support_win; else if (!before) win[0] = window_top(g_list_last(stacking_list)->data); else win[0] = window_top(g_list_previous(before)->data); for (i = 1, it = wins; it; ++i, it = g_list_next(it)) { win[i] = window_top(it->data); g_assert(win[i] != None); /* better not call stacking shit before setting your top level window value */ stacking_list = g_list_insert_before(stacking_list, before, it->data); } #ifdef DEBUG /* some debug checking of the stacking list's order */ for (it = stacking_list; ; it = next) { next = g_list_next(it); if (!next) break; g_assert(window_layer(it->data) >= window_layer(next->data)); } #endif XRestackWindows(ob_display, win, i); g_free(win); stacking_set_list(); } static void do_raise(GList *wins) { GList *it; GList *layer[OB_NUM_STACKING_LAYERS] = {NULL}; gint i; for (it = wins; it; it = g_list_next(it)) { ObStackingLayer l; l = window_layer(it->data); layer[l] = g_list_append(layer[l], it->data); } it = stacking_list; for (i = OB_NUM_STACKING_LAYERS - 1; i >= 0; --i) { if (layer[i]) { for (; it; it = g_list_next(it)) { /* look for the top of the layer */ if (window_layer(it->data) <= (ObStackingLayer) i) break; } do_restack(layer[i], it); g_list_free(layer[i]); } } } static void do_lower(GList *wins) { GList *it; GList *layer[OB_NUM_STACKING_LAYERS] = {NULL}; gint i; for (it = wins; it; it = g_list_next(it)) { ObStackingLayer l; l = window_layer(it->data); layer[l] = g_list_append(layer[l], it->data); } it = stacking_list; for (i = OB_NUM_STACKING_LAYERS - 1; i >= 0; --i) { if (layer[i]) { for (; it; it = g_list_next(it)) { /* look for the top of the next layer down */ if (window_layer(it->data) < (ObStackingLayer) i) break; } do_restack(layer[i], it); g_list_free(layer[i]); } } } static void restack_windows(ObClient *selected, gboolean raise) { GList *it, *last, *below, *above, *next; GList *wins = NULL; GList *group_modals = NULL; GList *group_trans = NULL; GList *modals = NULL; GList *trans = NULL; if (!raise && selected->transient_for) { GSList *top, *top_it; GSList *top_reorder = NULL; /* if it's a transient lowering, lower its parents so that we can lower this window, or it won't move */ top = client_search_all_top_parents(selected); /* go thru stacking list backwards so we can use g_slist_prepend */ for (it = g_list_last(stacking_list); it && top; it = g_list_previous(it)) if ((top_it = g_slist_find(top, it->data))) { top_reorder = g_slist_prepend(top_reorder, top_it->data); top = g_slist_delete_link(top, top_it); } g_assert(top == NULL); /* call restack for each of these to lower them */ for (top_it = top_reorder; top_it; top_it = g_slist_next(top_it)) restack_windows(top_it->data, raise); return; } /* remove first so we can't run into ourself */ it = g_list_find(stacking_list, selected); g_assert(it); stacking_list = g_list_delete_link(stacking_list, it); /* go from the bottom of the stacking list up */ for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) { if (WINDOW_IS_CLIENT(it->data)) { ObClient *ch = it->data; /* only move windows in the same stacking layer */ if (ch->layer == selected->layer && client_search_transient(selected, ch)) { if (client_is_direct_child(selected, ch)) { if (ch->modal) modals = g_list_prepend(modals, ch); else trans = g_list_prepend(trans, ch); } else { if (ch->modal) group_modals = g_list_prepend(group_modals, ch); else group_trans = g_list_prepend(group_trans, ch); } stacking_list = g_list_delete_link(stacking_list, it); } } } /* put transients of the selected window right above it */ wins = g_list_concat(modals, trans); wins = g_list_append(wins, selected); /* if selected window is transient for group then raise it above others */ if (selected->transient_for == OB_TRAN_GROUP) { /* if it's modal, raise it above those also */ if (selected->modal) { wins = g_list_concat(wins, group_modals); group_modals = NULL; } wins = g_list_concat(wins, group_trans); group_trans = NULL; } /* find where to put the selected window, start from bottom of list, this is the window below everything we are re-adding to the list */ last = NULL; for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) { if (window_layer(it->data) < selected->layer) continue; /* if lowering, stop at the beginning of the layer */ if (!raise) break; /* if raising, stop at the end of the layer */ if (window_layer(it->data) > selected->layer) break; last = it; } /* save this position in the stacking list */ below = last; /* find where to put the group transients, start from the top of list */ for (it = stacking_list; it; it = g_list_next(it)) { /* skip past higher layers */ if (window_layer(it->data) > selected->layer) continue; /* if we reach the end of the layer (how?) then don't go further */ if (window_layer(it->data) < selected->layer) break; /* stop when we reach the first window in the group */ if (WINDOW_IS_CLIENT(it->data)) { ObClient *c = it->data; if (c->group == selected->group) break; } /* if we don't hit any other group members, stop here because this is where we are putting the selected window (and its children) */ if (it == below) break; } /* save this position, this is the top of the group of windows between the group transient ones we're restacking and the others up above that we're restacking we actually want to save 1 position _above_ that, for for loops to work nicely, so move back one position in the list while saving it */ above = it ? g_list_previous(it) : g_list_last(stacking_list); /* put the windows inside the gap to the other windows we're stacking into the restacking list, go from the bottom up so that we can use g_list_prepend */ if (below) it = g_list_previous(below); else it = g_list_last(stacking_list); for (; it != above; it = next) { next = g_list_previous(it); wins = g_list_prepend(wins, it->data); stacking_list = g_list_delete_link(stacking_list, it); } /* group transients go above the rest of the stuff acquired to now */ wins = g_list_concat(group_trans, wins); /* group modals go on the very top */ wins = g_list_concat(group_modals, wins); do_restack(wins, below); g_list_free(wins); } void stacking_raise(ObWindow *window) { if (WINDOW_IS_CLIENT(window)) { ObClient *selected; selected = WINDOW_AS_CLIENT(window); restack_windows(selected, TRUE); } else { GList *wins; wins = g_list_append(NULL, window); stacking_list = g_list_remove(stacking_list, window); do_raise(wins); g_list_free(wins); } } void stacking_lower(ObWindow *window) { if (WINDOW_IS_CLIENT(window)) { ObClient *selected; selected = WINDOW_AS_CLIENT(window); restack_windows(selected, FALSE); } else { GList *wins; wins = g_list_append(NULL, window); stacking_list = g_list_remove(stacking_list, window); do_lower(wins); g_list_free(wins); } } void stacking_below(ObWindow *window, ObWindow *below) { GList *wins, *before; if (window_layer(window) != window_layer(below)) return; wins = g_list_append(NULL, window); stacking_list = g_list_remove(stacking_list, window); before = g_list_next(g_list_find(stacking_list, below)); do_restack(wins, before); g_list_free(wins); } void stacking_add(ObWindow *win) { g_assert(screen_support_win != None); /* make sure I dont break this in the future */ stacking_list = g_list_append(stacking_list, win); stacking_raise(win); } void stacking_add_nonintrusive(ObWindow *win) { ObClient *client; ObClient *parent = NULL; GList *it_below = NULL; if (!WINDOW_IS_CLIENT(win)) { stacking_add(win); /* no special rules for others */ return; } client = WINDOW_AS_CLIENT(win); /* insert above its highest parent */ if (client->transient_for) { if (client->transient_for != OB_TRAN_GROUP) { parent = client->transient_for; } else { GSList *sit; GList *it; if (client->group) for (it = stacking_list; !parent && it; it = g_list_next(it)) { if ((sit = g_slist_find(client->group->members, it->data))) for (sit = client->group->members; !parent && sit; sit = g_slist_next(sit)) { ObClient *c = sit->data; /* checking transient_for prevents infinate loops! */ if (sit->data == it->data && !c->transient_for) parent = it->data; } } } } if (!(it_below = g_list_find(stacking_list, parent))) { /* no parent to put above, try find the focused client to go under */ if (focus_client && focus_client->layer == client->layer) { if ((it_below = g_list_find(stacking_list, focus_client))) it_below = it_below->next; } } if (!it_below) { /* out of ideas, just add it normally... */ stacking_add(win); } else { /* make sure it's not in the wrong layer though ! */ for (; it_below; it_below = g_list_next(it_below)) { /* stop when the window is not in a higher layer than the window it is going above (it_below) */ if (client->layer >= window_layer(it_below->data)) break; } for (; it_below != stacking_list; it_below = g_list_previous(it_below)) { /* stop when the window is not in a lower layer than the window it is going under (it_above) */ GList *it_above = g_list_previous(it_below); if (client->layer <= window_layer(it_above->data)) break; } GList *wins = g_list_append(NULL, win); do_restack(wins, it_below); g_list_free(wins); } } |