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00001 /* 00002 * vim:ts=4:sw=4:expandtab 00003 * 00004 * i3 - an improved dynamic tiling window manager 00005 * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE) 00006 * 00007 * For more information on RandR, please see the X.org RandR specification at 00008 * http://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt 00009 * (take your time to read it completely, it answers all questions). 00010 * 00011 */ 00012 #include "all.h" 00013 00014 #include <time.h> 00015 #include <xcb/randr.h> 00016 00017 /* While a clean namespace is usually a pretty good thing, we really need 00018 * to use shorter names than the whole xcb_randr_* default names. */ 00019 typedef xcb_randr_get_crtc_info_reply_t crtc_info; 00020 typedef xcb_randr_get_screen_resources_current_reply_t resources_reply; 00021 00022 /* Pointer to the result of the query for primary output */ 00023 xcb_randr_get_output_primary_reply_t *primary; 00024 00025 /* Stores all outputs available in your current session. */ 00026 struct outputs_head outputs = TAILQ_HEAD_INITIALIZER(outputs); 00027 00028 static bool randr_disabled = false; 00029 00030 /* 00031 * Get a specific output by its internal X11 id. Used by randr_query_outputs 00032 * to check if the output is new (only in the first scan) or if we are 00033 * re-scanning. 00034 * 00035 */ 00036 static Output *get_output_by_id(xcb_randr_output_t id) { 00037 Output *output; 00038 TAILQ_FOREACH(output, &outputs, outputs) 00039 if (output->id == id) 00040 return output; 00041 00042 return NULL; 00043 } 00044 00045 /* 00046 * Returns the output with the given name if it is active (!) or NULL. 00047 * 00048 */ 00049 Output *get_output_by_name(const char *name) { 00050 Output *output; 00051 TAILQ_FOREACH(output, &outputs, outputs) 00052 if (output->active && 00053 strcasecmp(output->name, name) == 0) 00054 return output; 00055 00056 return NULL; 00057 } 00058 00059 /* 00060 * Returns the first output which is active. 00061 * 00062 */ 00063 Output *get_first_output() { 00064 Output *output; 00065 00066 TAILQ_FOREACH(output, &outputs, outputs) 00067 if (output->active) 00068 return output; 00069 00070 return NULL; 00071 } 00072 00073 /* 00074 * Returns the active (!) output which contains the coordinates x, y or NULL 00075 * if there is no output which contains these coordinates. 00076 * 00077 */ 00078 Output *get_output_containing(int x, int y) { 00079 Output *output; 00080 TAILQ_FOREACH(output, &outputs, outputs) { 00081 if (!output->active) 00082 continue; 00083 DLOG("comparing x=%d y=%d with x=%d and y=%d width %d height %d\n", 00084 x, y, output->rect.x, output->rect.y, output->rect.width, output->rect.height); 00085 if (x >= output->rect.x && x < (output->rect.x + output->rect.width) && 00086 y >= output->rect.y && y < (output->rect.y + output->rect.height)) 00087 return output; 00088 } 00089 00090 return NULL; 00091 } 00092 00093 /* 00094 * Gets the output which is the last one in the given direction, for example 00095 * the output on the most bottom when direction == D_DOWN, the output most 00096 * right when direction == D_RIGHT and so on. 00097 * 00098 * This function always returns a output. 00099 * 00100 */ 00101 Output *get_output_most(direction_t direction, Output *current) { 00102 Output *output, *candidate = NULL; 00103 int position = 0; 00104 TAILQ_FOREACH(output, &outputs, outputs) { 00105 if (!output->active) 00106 continue; 00107 00108 /* Repeated calls of WIN determine the winner of the comparison */ 00109 #define WIN(variable, condition) \ 00110 if (variable condition) { \ 00111 candidate = output; \ 00112 position = variable; \ 00113 } \ 00114 break; 00115 00116 if (((direction == D_UP) || (direction == D_DOWN)) && 00117 (current->rect.x != output->rect.x)) 00118 continue; 00119 00120 if (((direction == D_LEFT) || (direction == D_RIGHT)) && 00121 (current->rect.y != output->rect.y)) 00122 continue; 00123 00124 switch (direction) { 00125 case D_UP: 00126 WIN(output->rect.y, <= position); 00127 case D_DOWN: 00128 WIN(output->rect.y, >= position); 00129 case D_LEFT: 00130 WIN(output->rect.x, <= position); 00131 case D_RIGHT: 00132 WIN(output->rect.x, >= position); 00133 } 00134 } 00135 00136 assert(candidate != NULL); 00137 00138 return candidate; 00139 } 00140 00141 /* 00142 * Gets the output which is the next one in the given direction. 00143 * 00144 */ 00145 Output *get_output_next(direction_t direction, Output *current) { 00146 Output *output, *candidate = NULL; 00147 00148 TAILQ_FOREACH(output, &outputs, outputs) { 00149 if (!output->active) 00150 continue; 00151 00152 if (((direction == D_UP) || (direction == D_DOWN)) && 00153 (current->rect.x != output->rect.x)) 00154 continue; 00155 00156 if (((direction == D_LEFT) || (direction == D_RIGHT)) && 00157 (current->rect.y != output->rect.y)) 00158 continue; 00159 00160 switch (direction) { 00161 case D_UP: 00162 if (output->rect.y < current->rect.y && 00163 (!candidate || output->rect.y < candidate->rect.y)) 00164 candidate = output; 00165 break; 00166 case D_DOWN: 00167 if (output->rect.y > current->rect.y && 00168 (!candidate || output->rect.y > candidate->rect.y)) 00169 candidate = output; 00170 break; 00171 case D_LEFT: 00172 if (output->rect.x < current->rect.x && 00173 (!candidate || output->rect.x > candidate->rect.x)) 00174 candidate = output; 00175 break; 00176 case D_RIGHT: 00177 if (output->rect.x > current->rect.x && 00178 (!candidate || output->rect.x < candidate->rect.x)) 00179 candidate = output; 00180 break; 00181 } 00182 } 00183 00184 return candidate; 00185 } 00186 00187 /* 00188 * Disables RandR support by creating exactly one output with the size of the 00189 * X11 screen. 00190 * 00191 */ 00192 void disable_randr(xcb_connection_t *conn) { 00193 DLOG("RandR extension unusable, disabling.\n"); 00194 00195 Output *s = scalloc(sizeof(Output)); 00196 00197 s->active = true; 00198 s->rect.x = 0; 00199 s->rect.y = 0; 00200 s->rect.width = root_screen->width_in_pixels; 00201 s->rect.height = root_screen->height_in_pixels; 00202 s->name = "xroot-0"; 00203 output_init_con(s); 00204 init_ws_for_output(s, output_get_content(s->con)); 00205 00206 TAILQ_INSERT_TAIL(&outputs, s, outputs); 00207 00208 randr_disabled = true; 00209 } 00210 00211 /* 00212 * Initializes a CT_OUTPUT Con (searches existing ones from inplace restart 00213 * before) to use for the given Output. 00214 * 00215 */ 00216 void output_init_con(Output *output) { 00217 Con *con = NULL, *current; 00218 bool reused = false; 00219 00220 DLOG("init_con for output %s\n", output->name); 00221 00222 /* Search for a Con with that name directly below the root node. There 00223 * might be one from a restored layout. */ 00224 TAILQ_FOREACH(current, &(croot->nodes_head), nodes) { 00225 if (strcmp(current->name, output->name) != 0) 00226 continue; 00227 00228 con = current; 00229 reused = true; 00230 DLOG("Using existing con %p / %s\n", con, con->name); 00231 break; 00232 } 00233 00234 if (con == NULL) { 00235 con = con_new(croot, NULL); 00236 FREE(con->name); 00237 con->name = sstrdup(output->name); 00238 con->type = CT_OUTPUT; 00239 con->layout = L_OUTPUT; 00240 con_fix_percent(croot); 00241 } 00242 con->rect = output->rect; 00243 output->con = con; 00244 00245 char *name; 00246 sasprintf(&name, "[i3 con] output %s", con->name); 00247 x_set_name(con, name); 00248 FREE(name); 00249 00250 if (reused) { 00251 DLOG("Not adding workspace, this was a reused con\n"); 00252 return; 00253 } 00254 00255 DLOG("Changing layout, adding top/bottom dockarea\n"); 00256 Con *topdock = con_new(NULL, NULL); 00257 topdock->type = CT_DOCKAREA; 00258 topdock->layout = L_DOCKAREA; 00259 topdock->orientation = VERT; 00260 /* this container swallows dock clients */ 00261 Match *match = scalloc(sizeof(Match)); 00262 match_init(match); 00263 match->dock = M_DOCK_TOP; 00264 match->insert_where = M_BELOW; 00265 TAILQ_INSERT_TAIL(&(topdock->swallow_head), match, matches); 00266 00267 FREE(topdock->name); 00268 topdock->name = sstrdup("topdock"); 00269 00270 sasprintf(&name, "[i3 con] top dockarea %s", con->name); 00271 x_set_name(topdock, name); 00272 FREE(name); 00273 DLOG("attaching\n"); 00274 con_attach(topdock, con, false); 00275 00276 /* content container */ 00277 00278 DLOG("adding main content container\n"); 00279 Con *content = con_new(NULL, NULL); 00280 content->type = CT_CON; 00281 FREE(content->name); 00282 content->name = sstrdup("content"); 00283 00284 sasprintf(&name, "[i3 con] content %s", con->name); 00285 x_set_name(content, name); 00286 FREE(name); 00287 con_attach(content, con, false); 00288 00289 /* bottom dock container */ 00290 Con *bottomdock = con_new(NULL, NULL); 00291 bottomdock->type = CT_DOCKAREA; 00292 bottomdock->layout = L_DOCKAREA; 00293 bottomdock->orientation = VERT; 00294 /* this container swallows dock clients */ 00295 match = scalloc(sizeof(Match)); 00296 match_init(match); 00297 match->dock = M_DOCK_BOTTOM; 00298 match->insert_where = M_BELOW; 00299 TAILQ_INSERT_TAIL(&(bottomdock->swallow_head), match, matches); 00300 00301 FREE(bottomdock->name); 00302 bottomdock->name = sstrdup("bottomdock"); 00303 00304 sasprintf(&name, "[i3 con] bottom dockarea %s", con->name); 00305 x_set_name(bottomdock, name); 00306 FREE(name); 00307 DLOG("attaching\n"); 00308 con_attach(bottomdock, con, false); 00309 } 00310 00311 /* 00312 * Initializes at least one workspace for this output, trying the following 00313 * steps until there is at least one workspace: 00314 * 00315 * • Move existing workspaces, which are assigned to be on the given output, to 00316 * the output. 00317 * • Create the first assigned workspace for this output. 00318 * • Create the first unused workspace. 00319 * 00320 */ 00321 void init_ws_for_output(Output *output, Con *content) { 00322 char *name; 00323 00324 /* go through all assignments and move the existing workspaces to this output */ 00325 struct Workspace_Assignment *assignment; 00326 TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) { 00327 if (strcmp(assignment->output, output->name) != 0) 00328 continue; 00329 00330 /* check if this workspace actually exists */ 00331 Con *workspace = NULL, *out; 00332 TAILQ_FOREACH(out, &(croot->nodes_head), nodes) 00333 GREP_FIRST(workspace, output_get_content(out), 00334 !strcasecmp(child->name, assignment->name)); 00335 if (workspace == NULL) 00336 continue; 00337 00338 /* check that this workspace is not already attached (that means the 00339 * user configured this assignment twice) */ 00340 Con *workspace_out = con_get_output(workspace); 00341 if (workspace_out == output->con) { 00342 LOG("Workspace \"%s\" assigned to output \"%s\", but it is already " 00343 "there. Do you have two assignment directives for the same " 00344 "workspace in your configuration file?\n", 00345 workspace->name, output->name); 00346 continue; 00347 } 00348 00349 /* if so, move it over */ 00350 LOG("Moving workspace \"%s\" from output \"%s\" to \"%s\" due to assignment\n", 00351 workspace->name, workspace_out->name, output->name); 00352 00353 /* if the workspace is currently visible on that output, we need to 00354 * switch to a different workspace - otherwise the output would end up 00355 * with no active workspace */ 00356 bool visible = workspace_is_visible(workspace); 00357 Con *previous = NULL; 00358 if (visible && (previous = TAILQ_NEXT(workspace, focused))) { 00359 LOG("Switching to previously used workspace \"%s\" on output \"%s\"\n", 00360 previous->name, workspace_out->name); 00361 workspace_show(previous); 00362 } 00363 00364 con_detach(workspace); 00365 con_attach(workspace, content, false); 00366 00367 /* In case the workspace we just moved was visible but there was no 00368 * other workspace to switch to, we need to initialize the source 00369 * output aswell */ 00370 if (visible && previous == NULL) { 00371 LOG("There is no workspace left on \"%s\", re-initializing\n", 00372 workspace_out->name); 00373 init_ws_for_output(get_output_by_name(workspace_out->name), 00374 output_get_content(workspace_out)); 00375 DLOG("Done re-initializing, continuing with \"%s\"\n", output->name); 00376 } 00377 } 00378 00379 /* if a workspace exists, we are done now */ 00380 if (!TAILQ_EMPTY(&(content->nodes_head))) { 00381 /* ensure that one of the workspaces is actually visible (in fullscreen 00382 * mode), if they were invisible before, this might not be the case. */ 00383 Con *visible = NULL; 00384 GREP_FIRST(visible, content, child->fullscreen_mode == CF_OUTPUT); 00385 if (!visible) { 00386 visible = TAILQ_FIRST(&(content->nodes_head)); 00387 focused = content; 00388 workspace_show(visible); 00389 } 00390 return; 00391 } 00392 00393 /* otherwise, we create the first assigned ws for this output */ 00394 TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) { 00395 if (strcmp(assignment->output, output->name) != 0) 00396 continue; 00397 00398 LOG("Initializing first assigned workspace \"%s\" for output \"%s\"\n", 00399 assignment->name, assignment->output); 00400 focused = content; 00401 workspace_show_by_name(assignment->name); 00402 return; 00403 } 00404 00405 /* if there is still no workspace, we create the first free workspace */ 00406 DLOG("Now adding a workspace\n"); 00407 00408 /* add a workspace to this output */ 00409 Con *out, *current; 00410 bool exists = true; 00411 Con *ws = con_new(NULL, NULL); 00412 ws->type = CT_WORKSPACE; 00413 00414 /* try the configured workspace bindings first to find a free name */ 00415 Binding *bind; 00416 TAILQ_FOREACH(bind, bindings, bindings) { 00417 DLOG("binding with command %s\n", bind->command); 00418 if (strlen(bind->command) < strlen("workspace ") || 00419 strncasecmp(bind->command, "workspace", strlen("workspace")) != 0) 00420 continue; 00421 DLOG("relevant command = %s\n", bind->command); 00422 char *target = bind->command + strlen("workspace "); 00423 /* We check if this is the workspace next/prev/back_and_forth command. 00424 * Beware: The workspace names "next", "prev" and "back_and_forth" are 00425 * OK, so we check before stripping the double quotes */ 00426 if (strncasecmp(target, "next", strlen("next")) == 0 || 00427 strncasecmp(target, "prev", strlen("prev")) == 0 || 00428 strncasecmp(target, "back_and_forth", strlen("back_and_forth")) == 0) 00429 continue; 00430 if (*target == '"') 00431 target++; 00432 FREE(ws->name); 00433 ws->name = strdup(target); 00434 if (ws->name[strlen(ws->name)-1] == '"') 00435 ws->name[strlen(ws->name)-1] = '\0'; 00436 DLOG("trying name *%s*\n", ws->name); 00437 00438 current = NULL; 00439 TAILQ_FOREACH(out, &(croot->nodes_head), nodes) 00440 GREP_FIRST(current, output_get_content(out), !strcasecmp(child->name, ws->name)); 00441 00442 exists = (current != NULL); 00443 if (!exists) { 00444 /* Set ->num to the number of the workspace, if the name actually 00445 * is a number or starts with a number */ 00446 char *endptr = NULL; 00447 long parsed_num = strtol(ws->name, &endptr, 10); 00448 if (parsed_num == LONG_MIN || 00449 parsed_num == LONG_MAX || 00450 parsed_num < 0 || 00451 endptr == ws->name) 00452 ws->num = -1; 00453 else ws->num = parsed_num; 00454 LOG("Used number %d for workspace with name %s\n", ws->num, ws->name); 00455 00456 break; 00457 } 00458 } 00459 00460 if (exists) { 00461 /* get the next unused workspace number */ 00462 DLOG("Getting next unused workspace by number\n"); 00463 int c = 0; 00464 while (exists) { 00465 c++; 00466 00467 FREE(ws->name); 00468 sasprintf(&(ws->name), "%d", c); 00469 00470 current = NULL; 00471 TAILQ_FOREACH(out, &(croot->nodes_head), nodes) 00472 GREP_FIRST(current, output_get_content(out), !strcasecmp(child->name, ws->name)); 00473 exists = (current != NULL); 00474 00475 DLOG("result for ws %s / %d: exists = %d\n", ws->name, c, exists); 00476 } 00477 ws->num = c; 00478 } 00479 con_attach(ws, content, false); 00480 00481 sasprintf(&name, "[i3 con] workspace %s", ws->name); 00482 x_set_name(ws, name); 00483 free(name); 00484 00485 ws->fullscreen_mode = CF_OUTPUT; 00486 00487 /* If default_orientation is set to NO_ORIENTATION we determine 00488 * orientation depending on output resolution. */ 00489 if (config.default_orientation == NO_ORIENTATION) { 00490 ws->orientation = (output->rect.height > output->rect.width) ? VERT : HORIZ; 00491 DLOG("Auto orientation. Workspace size set to (%d,%d), setting orientation to %d.\n", 00492 output->rect.width, output->rect.height, ws->orientation); 00493 } else { 00494 ws->orientation = config.default_orientation; 00495 } 00496 00497 00498 /* TODO: Set focus in main.c */ 00499 con_focus(ws); 00500 } 00501 00502 /* 00503 * This function needs to be called when changing the mode of an output when 00504 * it already has some workspaces (or a bar window) assigned. 00505 * 00506 * It reconfigures the bar window for the new mode, copies the new rect into 00507 * each workspace on this output and forces all windows on the affected 00508 * workspaces to be reconfigured. 00509 * 00510 * It is necessary to call render_layout() afterwards. 00511 * 00512 */ 00513 static void output_change_mode(xcb_connection_t *conn, Output *output) { 00514 DLOG("Output mode changed, updating rect\n"); 00515 assert(output->con != NULL); 00516 output->con->rect = output->rect; 00517 00518 Con *content, *workspace, *child; 00519 00520 /* Point content to the container of the workspaces */ 00521 content = output_get_content(output->con); 00522 00523 /* Fix the position of all floating windows on this output. 00524 * The 'rect' of each workspace will be updated in src/render.c. */ 00525 TAILQ_FOREACH(workspace, &(content->nodes_head), nodes) { 00526 TAILQ_FOREACH(child, &(workspace->floating_head), floating_windows) { 00527 floating_fix_coordinates(child, &(workspace->rect), &(output->con->rect)); 00528 } 00529 } 00530 00531 /* If default_orientation is NO_ORIENTATION, we change the orientation of 00532 * the workspaces and their childs depending on output resolution. This is 00533 * only done for workspaces with maximum one child. */ 00534 if (config.default_orientation == NO_ORIENTATION) { 00535 TAILQ_FOREACH(workspace, &(content->nodes_head), nodes) { 00536 /* Workspaces with more than one child are left untouched because 00537 * we do not want to change an existing layout. */ 00538 if (con_num_children(workspace) > 1) 00539 continue; 00540 00541 workspace->orientation = (output->rect.height > output->rect.width) ? VERT : HORIZ; 00542 DLOG("Setting workspace [%d,%s]'s orientation to %d.\n", workspace->num, workspace->name, workspace->orientation); 00543 if ((child = TAILQ_FIRST(&(workspace->nodes_head)))) { 00544 child->orientation = workspace->orientation; 00545 DLOG("Setting child [%d,%s]'s orientation to %d.\n", child->num, child->name, child->orientation); 00546 } 00547 } 00548 } 00549 } 00550 00551 /* 00552 * Gets called by randr_query_outputs() for each output. The function adds new 00553 * outputs to the list of outputs, checks if the mode of existing outputs has 00554 * been changed or if an existing output has been disabled. It will then change 00555 * either the "changed" or the "to_be_deleted" flag of the output, if 00556 * appropriate. 00557 * 00558 */ 00559 static void handle_output(xcb_connection_t *conn, xcb_randr_output_t id, 00560 xcb_randr_get_output_info_reply_t *output, 00561 xcb_timestamp_t cts, resources_reply *res) { 00562 /* each CRT controller has a position in which we are interested in */ 00563 crtc_info *crtc; 00564 00565 Output *new = get_output_by_id(id); 00566 bool existing = (new != NULL); 00567 if (!existing) 00568 new = scalloc(sizeof(Output)); 00569 new->id = id; 00570 new->primary = (primary && primary->output == id); 00571 FREE(new->name); 00572 sasprintf(&new->name, "%.*s", 00573 xcb_randr_get_output_info_name_length(output), 00574 xcb_randr_get_output_info_name(output)); 00575 00576 DLOG("found output with name %s\n", new->name); 00577 00578 /* Even if no CRTC is used at the moment, we store the output so that 00579 * we do not need to change the list ever again (we only update the 00580 * position/size) */ 00581 if (output->crtc == XCB_NONE) { 00582 if (!existing) { 00583 if (new->primary) 00584 TAILQ_INSERT_HEAD(&outputs, new, outputs); 00585 else TAILQ_INSERT_TAIL(&outputs, new, outputs); 00586 } else if (new->active) 00587 new->to_be_disabled = true; 00588 return; 00589 } 00590 00591 xcb_randr_get_crtc_info_cookie_t icookie; 00592 icookie = xcb_randr_get_crtc_info(conn, output->crtc, cts); 00593 if ((crtc = xcb_randr_get_crtc_info_reply(conn, icookie, NULL)) == NULL) { 00594 DLOG("Skipping output %s: could not get CRTC (%p)\n", 00595 new->name, crtc); 00596 free(new); 00597 return; 00598 } 00599 00600 bool updated = update_if_necessary(&(new->rect.x), crtc->x) | 00601 update_if_necessary(&(new->rect.y), crtc->y) | 00602 update_if_necessary(&(new->rect.width), crtc->width) | 00603 update_if_necessary(&(new->rect.height), crtc->height); 00604 free(crtc); 00605 new->active = (new->rect.width != 0 && new->rect.height != 0); 00606 if (!new->active) { 00607 DLOG("width/height 0/0, disabling output\n"); 00608 return; 00609 } 00610 00611 DLOG("mode: %dx%d+%d+%d\n", new->rect.width, new->rect.height, 00612 new->rect.x, new->rect.y); 00613 00614 /* If we don’t need to change an existing output or if the output 00615 * does not exist in the first place, the case is simple: we either 00616 * need to insert the new output or we are done. */ 00617 if (!updated || !existing) { 00618 if (!existing) { 00619 if (new->primary) 00620 TAILQ_INSERT_HEAD(&outputs, new, outputs); 00621 else TAILQ_INSERT_TAIL(&outputs, new, outputs); 00622 } 00623 return; 00624 } 00625 00626 new->changed = true; 00627 } 00628 00629 /* 00630 * (Re-)queries the outputs via RandR and stores them in the list of outputs. 00631 * 00632 */ 00633 void randr_query_outputs() { 00634 Output *output, *other, *first; 00635 xcb_randr_get_output_primary_cookie_t pcookie; 00636 xcb_randr_get_screen_resources_current_cookie_t rcookie; 00637 resources_reply *res; 00638 00639 /* timestamp of the configuration so that we get consistent replies to all 00640 * requests (if the configuration changes between our different calls) */ 00641 xcb_timestamp_t cts; 00642 00643 /* an output is VGA-1, LVDS-1, etc. (usually physical video outputs) */ 00644 xcb_randr_output_t *randr_outputs; 00645 00646 if (randr_disabled) 00647 return; 00648 00649 /* Get screen resources (primary output, crtcs, outputs, modes) */ 00650 rcookie = xcb_randr_get_screen_resources_current(conn, root); 00651 pcookie = xcb_randr_get_output_primary(conn, root); 00652 00653 if ((primary = xcb_randr_get_output_primary_reply(conn, pcookie, NULL)) == NULL) 00654 ELOG("Could not get RandR primary output\n"); 00655 else DLOG("primary output is %08x\n", primary->output); 00656 if ((res = xcb_randr_get_screen_resources_current_reply(conn, rcookie, NULL)) == NULL) { 00657 disable_randr(conn); 00658 return; 00659 } 00660 cts = res->config_timestamp; 00661 00662 int len = xcb_randr_get_screen_resources_current_outputs_length(res); 00663 randr_outputs = xcb_randr_get_screen_resources_current_outputs(res); 00664 00665 /* Request information for each output */ 00666 xcb_randr_get_output_info_cookie_t ocookie[len]; 00667 for (int i = 0; i < len; i++) 00668 ocookie[i] = xcb_randr_get_output_info(conn, randr_outputs[i], cts); 00669 00670 /* Loop through all outputs available for this X11 screen */ 00671 for (int i = 0; i < len; i++) { 00672 xcb_randr_get_output_info_reply_t *output; 00673 00674 if ((output = xcb_randr_get_output_info_reply(conn, ocookie[i], NULL)) == NULL) 00675 continue; 00676 00677 handle_output(conn, randr_outputs[i], output, cts, res); 00678 free(output); 00679 } 00680 00681 /* Check for clones, disable the clones and reduce the mode to the 00682 * lowest common mode */ 00683 TAILQ_FOREACH(output, &outputs, outputs) { 00684 if (!output->active || output->to_be_disabled) 00685 continue; 00686 DLOG("output %p / %s, position (%d, %d), checking for clones\n", 00687 output, output->name, output->rect.x, output->rect.y); 00688 00689 for (other = output; 00690 other != TAILQ_END(&outputs); 00691 other = TAILQ_NEXT(other, outputs)) { 00692 if (other == output || !other->active || other->to_be_disabled) 00693 continue; 00694 00695 if (other->rect.x != output->rect.x || 00696 other->rect.y != output->rect.y) 00697 continue; 00698 00699 DLOG("output %p has the same position, his mode = %d x %d\n", 00700 other, other->rect.width, other->rect.height); 00701 uint32_t width = min(other->rect.width, output->rect.width); 00702 uint32_t height = min(other->rect.height, output->rect.height); 00703 00704 if (update_if_necessary(&(output->rect.width), width) | 00705 update_if_necessary(&(output->rect.height), height)) 00706 output->changed = true; 00707 00708 update_if_necessary(&(other->rect.width), width); 00709 update_if_necessary(&(other->rect.height), height); 00710 00711 DLOG("disabling output %p (%s)\n", other, other->name); 00712 other->to_be_disabled = true; 00713 00714 DLOG("new output mode %d x %d, other mode %d x %d\n", 00715 output->rect.width, output->rect.height, 00716 other->rect.width, other->rect.height); 00717 } 00718 } 00719 00720 /* Ensure that all outputs which are active also have a con. This is 00721 * necessary because in the next step, a clone might get disabled. Example: 00722 * LVDS1 active, VGA1 gets activated as a clone of LVDS1 (has no con). 00723 * LVDS1 gets disabled. */ 00724 TAILQ_FOREACH(output, &outputs, outputs) { 00725 if (output->active && output->con == NULL) { 00726 DLOG("Need to initialize a Con for output %s\n", output->name); 00727 output_init_con(output); 00728 output->changed = false; 00729 } 00730 } 00731 00732 /* Handle outputs which have a new mode or are disabled now (either 00733 * because the user disabled them or because they are clones) */ 00734 TAILQ_FOREACH(output, &outputs, outputs) { 00735 if (output->to_be_disabled) { 00736 output->active = false; 00737 DLOG("Output %s disabled, re-assigning workspaces/docks\n", output->name); 00738 00739 if ((first = get_first_output()) == NULL) 00740 die("No usable outputs available\n"); 00741 00742 /* TODO: refactor the following code into a nice function. maybe 00743 * use an on_destroy callback which is implement differently for 00744 * different container types (CT_CONTENT vs. CT_DOCKAREA)? */ 00745 Con *first_content = output_get_content(first->con); 00746 00747 if (output->con != NULL) { 00748 /* We need to move the workspaces from the disappearing output to the first output */ 00749 /* 1: Get the con to focus next, if the disappearing ws is focused */ 00750 Con *next = NULL; 00751 if (TAILQ_FIRST(&(croot->focus_head)) == output->con) { 00752 DLOG("This output (%p) was focused! Getting next\n", output->con); 00753 next = focused; 00754 DLOG("next = %p\n", next); 00755 } 00756 00757 /* 2: iterate through workspaces and re-assign them */ 00758 Con *current; 00759 Con *old_content = output_get_content(output->con); 00760 while (!TAILQ_EMPTY(&(old_content->nodes_head))) { 00761 current = TAILQ_FIRST(&(old_content->nodes_head)); 00762 DLOG("Detaching current = %p / %s\n", current, current->name); 00763 con_detach(current); 00764 DLOG("Re-attaching current = %p / %s\n", current, current->name); 00765 con_attach(current, first_content, false); 00766 DLOG("Done, next\n"); 00767 } 00768 DLOG("re-attached all workspaces\n"); 00769 00770 if (next) { 00771 DLOG("now focusing next = %p\n", next); 00772 con_focus(next); 00773 workspace_show(con_get_workspace(next)); 00774 } 00775 00776 /* 3: move the dock clients to the first output */ 00777 Con *child; 00778 TAILQ_FOREACH(child, &(output->con->nodes_head), nodes) { 00779 if (child->type != CT_DOCKAREA) 00780 continue; 00781 DLOG("Handling dock con %p\n", child); 00782 Con *dock; 00783 while (!TAILQ_EMPTY(&(child->nodes_head))) { 00784 dock = TAILQ_FIRST(&(child->nodes_head)); 00785 Con *nc; 00786 Match *match; 00787 nc = con_for_window(first->con, dock->window, &match); 00788 DLOG("Moving dock client %p to nc %p\n", dock, nc); 00789 con_detach(dock); 00790 DLOG("Re-attaching\n"); 00791 con_attach(dock, nc, false); 00792 DLOG("Done\n"); 00793 } 00794 } 00795 00796 DLOG("destroying disappearing con %p\n", output->con); 00797 tree_close(output->con, DONT_KILL_WINDOW, true, false); 00798 DLOG("Done. Should be fine now\n"); 00799 output->con = NULL; 00800 } 00801 00802 output->to_be_disabled = false; 00803 output->changed = false; 00804 } 00805 00806 if (output->changed) { 00807 output_change_mode(conn, output); 00808 output->changed = false; 00809 } 00810 } 00811 00812 if (TAILQ_EMPTY(&outputs)) { 00813 ELOG("No outputs found via RandR, disabling\n"); 00814 disable_randr(conn); 00815 } 00816 00817 /* Just go through each active output and assign one workspace */ 00818 TAILQ_FOREACH(output, &outputs, outputs) { 00819 if (!output->active) 00820 continue; 00821 Con *content = output_get_content(output->con); 00822 if (!TAILQ_EMPTY(&(content->nodes_head))) 00823 continue; 00824 DLOG("Should add ws for output %s\n", output->name); 00825 init_ws_for_output(output, content); 00826 } 00827 00828 /* Focus the primary screen, if possible */ 00829 TAILQ_FOREACH(output, &outputs, outputs) { 00830 if (!output->primary || !output->con) 00831 continue; 00832 00833 DLOG("Focusing primary output %s\n", output->name); 00834 con_focus(con_descend_focused(output->con)); 00835 } 00836 00837 /* render_layout flushes */ 00838 tree_render(); 00839 00840 FREE(res); 00841 FREE(primary); 00842 } 00843 00844 /* 00845 * We have just established a connection to the X server and need the initial 00846 * XRandR information to setup workspaces for each screen. 00847 * 00848 */ 00849 void randr_init(int *event_base) { 00850 const xcb_query_extension_reply_t *extreply; 00851 00852 extreply = xcb_get_extension_data(conn, &xcb_randr_id); 00853 if (!extreply->present) { 00854 disable_randr(conn); 00855 return; 00856 } else randr_query_outputs(); 00857 00858 if (event_base != NULL) 00859 *event_base = extreply->first_event; 00860 00861 xcb_randr_select_input(conn, root, 00862 XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE | 00863 XCB_RANDR_NOTIFY_MASK_OUTPUT_CHANGE | 00864 XCB_RANDR_NOTIFY_MASK_CRTC_CHANGE | 00865 XCB_RANDR_NOTIFY_MASK_OUTPUT_PROPERTY); 00866 00867 xcb_flush(conn); 00868 }