2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009-2010 Michael Stapelberg and contributors (see also: LICENSE)
7 * workspace.c: Functions for modifying workspaces
15 * Returns a pointer to the workspace with the given number (starting at 0),
16 * creating the workspace if necessary (by allocating the necessary amount of
17 * memory and initializing the data structures correctly).
20 Con *workspace_get(const char *num, bool *created) {
21 Con *output, *workspace = NULL, *child;
23 /* TODO: could that look like this in the future?
24 GET_MATCHING_NODE(workspace, croot, strcasecmp(current->name, num) != 0);
26 TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
27 TAILQ_FOREACH(child, &(output_get_content(output)->nodes_head), nodes) {
28 if (strcasecmp(child->name, num) != 0)
35 LOG("getting ws %s\n", num);
36 if (workspace == NULL) {
37 LOG("need to create this one\n");
38 output = con_get_output(focused);
39 Con *content = output_get_content(output);
40 LOG("got output %p with content %p\n", output, content);
41 /* We need to attach this container after setting its type. con_attach
42 * will handle CT_WORKSPACEs differently */
43 workspace = con_new(NULL);
45 asprintf(&name, "[i3 con] workspace %s", num);
46 x_set_name(workspace, name);
48 workspace->type = CT_WORKSPACE;
49 FREE(workspace->name);
50 workspace->name = sstrdup(num);
51 /* We set ->num to the number if this workspace’s name consists only of
52 * a positive number. Otherwise it’s a named ws and num will be -1. */
54 long parsed_num = strtol(num, &end, 10);
55 if (parsed_num == LONG_MIN ||
56 parsed_num == LONG_MAX ||
58 (end && *end != '\0'))
60 else workspace->num = parsed_num;
61 LOG("num = %d\n", workspace->num);
62 workspace->orientation = HORIZ;
63 con_attach(workspace, content, false);
65 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"init\"}");
69 else if (created != NULL) {
79 * Sets the name (or just its number) for the given workspace. This has to
80 * be called for every workspace as the rendering function
81 * (render_internal_bar) relies on workspace->name and workspace->name_len
85 void workspace_set_name(Workspace *ws, const char *name) {
90 ret = asprintf(&label, "%d: %s", ws->num + 1, name);
91 else ret = asprintf(&label, "%d", ws->num + 1);
94 errx(1, "asprintf() failed");
99 ws->name = convert_utf8_to_ucs2(label, &(ws->name_len));
100 if (config.font != NULL)
101 ws->text_width = predict_text_width(global_conn, config.font, ws->name, ws->name_len);
102 else ws->text_width = 0;
103 ws->utf8_name = label;
108 * Returns true if the workspace is currently visible. Especially important for
109 * multi-monitor environments, as they can have multiple currenlty active
113 bool workspace_is_visible(Con *ws) {
114 Con *output = con_get_output(ws);
117 Con *fs = con_get_fullscreen_con(output);
118 LOG("workspace visible? fs = %p, ws = %p\n", fs, ws);
123 * XXX: we need to clean up all this recursive walking code.
126 Con *_get_sticky(Con *con, const char *sticky_group, Con *exclude) {
129 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
130 if (current != exclude &&
131 current->sticky_group != NULL &&
132 current->window != NULL &&
133 strcmp(current->sticky_group, sticky_group) == 0)
136 Con *recurse = _get_sticky(current, sticky_group, exclude);
141 TAILQ_FOREACH(current, &(con->floating_head), floating_windows) {
142 if (current != exclude &&
143 current->sticky_group != NULL &&
144 current->window != NULL &&
145 strcmp(current->sticky_group, sticky_group) == 0)
148 Con *recurse = _get_sticky(current, sticky_group, exclude);
157 * Reassigns all child windows in sticky containers. Called when the user
158 * changes workspaces.
160 * XXX: what about sticky containers which contain containers?
163 static void workspace_reassign_sticky(Con *con) {
165 /* 1: go through all containers */
167 /* handle all children and floating windows of this node */
168 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
169 if (current->sticky_group == NULL) {
170 workspace_reassign_sticky(current);
174 LOG("Ah, this one is sticky: %s / %p\n", current->name, current);
175 /* 2: find a window which we can re-assign */
176 Con *output = con_get_output(current);
177 Con *src = _get_sticky(output, current->sticky_group, current);
180 LOG("No window found for this sticky group\n");
181 workspace_reassign_sticky(current);
185 x_move_win(src, current);
186 current->window = src->window;
187 current->mapped = true;
191 x_reparent_child(current, src);
193 LOG("re-assigned window from src %p to dest %p\n", src, current);
196 TAILQ_FOREACH(current, &(con->floating_head), floating_windows)
197 workspace_reassign_sticky(current);
201 * Switches to the given workspace
204 void workspace_show(const char *num) {
205 Con *workspace, *current, *old = NULL;
207 bool changed_num_workspaces;
208 workspace = workspace_get(num, &changed_num_workspaces);
210 /* disable fullscreen for the other workspaces and get the workspace we are
212 TAILQ_FOREACH(current, &(workspace->parent->nodes_head), nodes) {
213 if (current->fullscreen_mode == CF_OUTPUT)
215 current->fullscreen_mode = CF_NONE;
219 /* Check if the the currently focused con is on the same Output as the
220 * workspace we chose as 'old'. If not, use the workspace of the currently
222 Con *ws = con_get_workspace(focused);
223 if (ws && ws->parent != old->parent)
226 /* enable fullscreen for the target workspace. If it happens to be the
227 * same one we are currently on anyways, we can stop here. */
228 workspace->fullscreen_mode = CF_OUTPUT;
229 if (workspace == old)
232 workspace_reassign_sticky(workspace);
234 LOG("switching to %p\n", workspace);
235 Con *next = con_descend_focused(workspace);
237 if (old && TAILQ_EMPTY(&(old->nodes_head)) && TAILQ_EMPTY(&(old->floating_head))) {
238 /* check if this workspace is currently visible */
239 if (!workspace_is_visible(old)) {
240 LOG("Closing old workspace (%p / %s), it is empty\n", old, old->name);
241 tree_close(old, false, false);
242 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"empty\"}");
243 changed_num_workspaces = true;
248 workspace->fullscreen_mode = CF_OUTPUT;
249 LOG("focused now = %p / %s\n", focused, focused->name);
251 /* Update the EWMH hints */
252 if (changed_num_workspaces)
253 ewmh_update_workarea();
254 ewmh_update_current_desktop();
256 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
259 /* Check if the workspace has not been used yet */
260 workspace_initialize(t_ws, c_ws->output, false);
262 if (c_ws->output != t_ws->output) {
263 /* We need to switch to the other output first */
264 DLOG("moving over to other output.\n");
266 /* Store the old client */
267 Client *old_client = CUR_CELL->currently_focused;
269 c_ws = t_ws->output->current_workspace;
270 current_col = c_ws->current_col;
271 current_row = c_ws->current_row;
272 if (CUR_CELL->currently_focused != NULL)
275 Rect *dims = &(c_ws->output->rect);
276 xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0,
277 dims->x + (dims->width / 2), dims->y + (dims->height / 2));
280 /* Re-decorate the old client, it’s not focused anymore */
281 if ((old_client != NULL) && !old_client->dock)
282 redecorate_window(conn, old_client);
283 else xcb_flush(conn);
285 /* We need to check if a global fullscreen-client is blocking
286 * the t_ws and if necessary switch that to local fullscreen */
287 Client* client = c_ws->fullscreen_client;
288 if (client != NULL && client->workspace != c_ws) {
289 if (c_ws->fullscreen_client->workspace != c_ws)
290 c_ws->fullscreen_client = NULL;
291 client_enter_fullscreen(conn, client, false);
295 /* Check if we need to change something or if we’re already there */
296 if (c_ws->output->current_workspace->num == (workspace-1)) {
297 Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack));
298 if (last_focused != SLIST_END(&(c_ws->focus_stack)))
299 set_focus(conn, last_focused, true);
301 client_warp_pointer_into(conn, last_focused);
305 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
310 Workspace *old_workspace = c_ws;
311 c_ws = t_ws->output->current_workspace = workspace_get(workspace-1);
313 /* Unmap all clients of the old workspace */
314 workspace_unmap_clients(conn, old_workspace);
316 current_row = c_ws->current_row;
317 current_col = c_ws->current_col;
318 DLOG("new current row = %d, current col = %d\n", current_row, current_col);
320 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
322 workspace_map_clients(conn, c_ws);
324 /* POTENTIAL TO IMPROVE HERE: due to the call to _map_clients first and
325 * render_layout afterwards, there is a short flickering on the source
326 * workspace (assign ws 3 to output 0, ws 4 to output 1, create single
327 * client on ws 4, move it to ws 3, switch to ws 3, you’ll see the
330 /* Restore focus on the new workspace */
331 Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack));
332 if (last_focused != SLIST_END(&(c_ws->focus_stack)))
333 set_focus(conn, last_focused, true);
334 else xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
338 /* We can warp the pointer only after the window has been
339 * reconfigured in render_layout, otherwise the pointer will
340 * be warped to the old position, which will not work when we
341 * moved it to another output. */
342 if (last_focused != SLIST_END(&(c_ws->focus_stack)) && need_warp) {
343 client_warp_pointer_into(conn, last_focused);
351 * Assigns the given workspace to the given output by correctly updating its
352 * state and reconfiguring all the clients on this workspace.
354 * This is called when initializing a output and when re-assigning it to a
355 * different output which just got available (if you configured it to be on
356 * output 1 and you just plugged in output 1).
359 void workspace_assign_to(Workspace *ws, Output *output, bool hide_it) {
362 bool visible = workspace_is_visible(ws);
366 /* Copy the dimensions from the virtual output */
367 memcpy(&(ws->rect), &(ws->output->rect), sizeof(Rect));
369 ewmh_update_workarea();
371 /* Force reconfiguration for each client on that workspace */
372 SLIST_FOREACH(client, &(ws->focus_stack), focus_clients) {
373 client->force_reconfigure = true;
380 /* Render the workspace to reconfigure the clients. However, they will be visible now, so… */
381 render_workspace(global_conn, output, ws);
383 /* …unless we want to see them at the moment, we should hide that workspace */
384 if (visible && !hide_it)
387 /* however, if this is the current workspace, we only need to adjust
388 * the output’s current_workspace pointer (and must not unmap the
391 DLOG("Need to adjust output->current_workspace...\n");
392 output->current_workspace = c_ws;
393 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
397 workspace_unmap_clients(global_conn, ws);
401 * Initializes the given workspace if it is not already initialized. The given
402 * screen is to be understood as a fallback, if the workspace itself either
403 * was not assigned to a particular screen or cannot be placed there because
404 * the screen is not attached at the moment.
407 void workspace_initialize(Workspace *ws, Output *output, bool recheck) {
410 if (ws->output != NULL && !recheck) {
411 DLOG("Workspace already initialized\n");
415 old_output = ws->output;
417 /* If this workspace has no preferred output or if the output it wants
418 * to be on is not available at the moment, we initialize it with
419 * the output which was given */
420 if (ws->preferred_output == NULL ||
421 (ws->output = get_output_by_name(ws->preferred_output)) == NULL)
424 DLOG("old_output = %p, ws->output = %p\n", old_output, ws->output);
425 /* If the assignment did not change, we do not need to update anything */
426 if (old_output != NULL && ws->output == old_output)
429 workspace_assign_to(ws, ws->output, false);
433 * Gets the first unused workspace for the given screen, taking into account
434 * the preferred_output setting of every workspace (workspace assignments).
437 Workspace *get_first_workspace_for_output(Output *output) {
438 Workspace *result = NULL;
441 TAILQ_FOREACH(ws, workspaces, workspaces) {
442 if (ws->preferred_output == NULL ||
443 get_output_by_name(ws->preferred_output) != output)
450 if (result == NULL) {
451 /* No assignment found, returning first unused workspace */
452 TAILQ_FOREACH(ws, workspaces, workspaces) {
453 if (ws->output != NULL)
461 if (result == NULL) {
462 DLOG("No existing free workspace found to assign, creating a new one\n");
465 TAILQ_FOREACH(ws, workspaces, workspaces)
467 result = workspace_get(last_ws + 1, NULL);
470 workspace_initialize(result, output, false);
476 static bool get_urgency_flag(Con *con) {
478 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
479 if (child->urgent || get_urgency_flag(child))
482 TAILQ_FOREACH(child, &(con->floating_head), floating_windows)
483 if (child->urgent || get_urgency_flag(child))
490 * Goes through all clients on the given workspace and updates the workspace’s
491 * urgent flag accordingly.
494 void workspace_update_urgent_flag(Con *ws) {
495 bool old_flag = ws->urgent;
496 ws->urgent = get_urgency_flag(ws);
497 DLOG("Workspace urgency flag changed from %d to %d\n", old_flag, ws->urgent);
499 if (old_flag != ws->urgent)
500 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"urgent\"}");
504 * 'Forces' workspace orientation by moving all cons into a new split-con with
505 * the same orientation as the workspace and then changing the workspace
509 void ws_force_orientation(Con *ws, orientation_t orientation) {
510 /* 1: create a new split container */
511 Con *split = con_new(NULL);
514 /* 2: copy layout and orientation from workspace */
515 split->layout = ws->layout;
516 split->orientation = ws->orientation;
518 Con *old_focused = TAILQ_FIRST(&(ws->focus_head));
520 /* 3: move the existing cons of this workspace below the new con */
521 DLOG("Moving cons\n");
522 while (!TAILQ_EMPTY(&(ws->nodes_head))) {
523 Con *child = TAILQ_FIRST(&(ws->nodes_head));
525 con_attach(child, split, true);
528 /* 4: switch workspace orientation */
529 ws->orientation = orientation;
531 /* 5: attach the new split container to the workspace */
532 DLOG("Attaching new split to ws\n");
533 con_attach(split, ws, false);
535 /* 6: fix the percentages */
539 con_focus(old_focused);