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) {
73 //ewmh_update_workarea();
81 * Sets the name (or just its number) for the given workspace. This has to
82 * be called for every workspace as the rendering function
83 * (render_internal_bar) relies on workspace->name and workspace->name_len
87 void workspace_set_name(Workspace *ws, const char *name) {
92 ret = asprintf(&label, "%d: %s", ws->num + 1, name);
93 else ret = asprintf(&label, "%d", ws->num + 1);
96 errx(1, "asprintf() failed");
101 ws->name = convert_utf8_to_ucs2(label, &(ws->name_len));
102 if (config.font != NULL)
103 ws->text_width = predict_text_width(global_conn, config.font, ws->name, ws->name_len);
104 else ws->text_width = 0;
105 ws->utf8_name = label;
110 * Returns true if the workspace is currently visible. Especially important for
111 * multi-monitor environments, as they can have multiple currenlty active
115 bool workspace_is_visible(Con *ws) {
116 Con *output = con_get_output(ws);
119 Con *fs = con_get_fullscreen_con(output);
120 LOG("workspace visible? fs = %p, ws = %p\n", fs, ws);
125 * XXX: we need to clean up all this recursive walking code.
128 Con *_get_sticky(Con *con, const char *sticky_group, Con *exclude) {
131 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
132 if (current != exclude &&
133 current->sticky_group != NULL &&
134 current->window != NULL &&
135 strcmp(current->sticky_group, sticky_group) == 0)
138 Con *recurse = _get_sticky(current, sticky_group, exclude);
143 TAILQ_FOREACH(current, &(con->floating_head), floating_windows) {
144 if (current != exclude &&
145 current->sticky_group != NULL &&
146 current->window != NULL &&
147 strcmp(current->sticky_group, sticky_group) == 0)
150 Con *recurse = _get_sticky(current, sticky_group, exclude);
159 * Reassigns all child windows in sticky containers. Called when the user
160 * changes workspaces.
162 * XXX: what about sticky containers which contain containers?
165 static void workspace_reassign_sticky(Con *con) {
167 /* 1: go through all containers */
169 /* handle all children and floating windows of this node */
170 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
171 if (current->sticky_group == NULL) {
172 workspace_reassign_sticky(current);
176 LOG("Ah, this one is sticky: %s / %p\n", current->name, current);
177 /* 2: find a window which we can re-assign */
178 Con *output = con_get_output(current);
179 Con *src = _get_sticky(output, current->sticky_group, current);
182 LOG("No window found for this sticky group\n");
183 workspace_reassign_sticky(current);
187 x_move_win(src, current);
188 current->window = src->window;
189 current->mapped = true;
193 x_reparent_child(current, src);
195 LOG("re-assigned window from src %p to dest %p\n", src, current);
198 TAILQ_FOREACH(current, &(con->floating_head), floating_windows)
199 workspace_reassign_sticky(current);
203 * Switches to the given workspace
206 void workspace_show(const char *num) {
207 Con *workspace, *current, *old = NULL;
209 workspace = workspace_get(num, NULL);
211 /* disable fullscreen for the other workspaces and get the workspace we are
213 TAILQ_FOREACH(current, &(workspace->parent->nodes_head), nodes) {
214 if (current->fullscreen_mode == CF_OUTPUT)
216 current->fullscreen_mode = CF_NONE;
220 /* Check if the the currently focused con is on the same Output as the
221 * workspace we chose as 'old'. If not, use the workspace of the currently
223 Con *ws = con_get_workspace(focused);
224 if (ws && ws->parent != old->parent)
227 /* enable fullscreen for the target workspace. If it happens to be the
228 * same one we are currently on anyways, we can stop here. */
229 workspace->fullscreen_mode = CF_OUTPUT;
230 if (workspace == old)
233 workspace_reassign_sticky(workspace);
235 LOG("switching to %p\n", workspace);
236 Con *next = con_descend_focused(workspace);
238 if (old && TAILQ_EMPTY(&(old->nodes_head)) && TAILQ_EMPTY(&(old->floating_head))) {
239 /* check if this workspace is currently visible */
240 if (!workspace_is_visible(old)) {
241 LOG("Closing old workspace (%p / %s), it is empty\n", old, old->name);
242 tree_close(old, false, false);
243 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"empty\"}");
248 workspace->fullscreen_mode = CF_OUTPUT;
249 LOG("focused now = %p / %s\n", focused, focused->name);
251 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
254 /* Check if the workspace has not been used yet */
255 workspace_initialize(t_ws, c_ws->output, false);
257 if (c_ws->output != t_ws->output) {
258 /* We need to switch to the other output first */
259 DLOG("moving over to other output.\n");
261 /* Store the old client */
262 Client *old_client = CUR_CELL->currently_focused;
264 c_ws = t_ws->output->current_workspace;
265 current_col = c_ws->current_col;
266 current_row = c_ws->current_row;
267 if (CUR_CELL->currently_focused != NULL)
270 Rect *dims = &(c_ws->output->rect);
271 xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0,
272 dims->x + (dims->width / 2), dims->y + (dims->height / 2));
275 /* Re-decorate the old client, it’s not focused anymore */
276 if ((old_client != NULL) && !old_client->dock)
277 redecorate_window(conn, old_client);
278 else xcb_flush(conn);
280 /* We need to check if a global fullscreen-client is blocking
281 * the t_ws and if necessary switch that to local fullscreen */
282 Client* client = c_ws->fullscreen_client;
283 if (client != NULL && client->workspace != c_ws) {
284 if (c_ws->fullscreen_client->workspace != c_ws)
285 c_ws->fullscreen_client = NULL;
286 client_enter_fullscreen(conn, client, false);
290 /* Check if we need to change something or if we’re already there */
291 if (c_ws->output->current_workspace->num == (workspace-1)) {
292 Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack));
293 if (last_focused != SLIST_END(&(c_ws->focus_stack)))
294 set_focus(conn, last_focused, true);
296 client_warp_pointer_into(conn, last_focused);
300 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
305 Workspace *old_workspace = c_ws;
306 c_ws = t_ws->output->current_workspace = workspace_get(workspace-1);
308 /* Unmap all clients of the old workspace */
309 workspace_unmap_clients(conn, old_workspace);
311 current_row = c_ws->current_row;
312 current_col = c_ws->current_col;
313 DLOG("new current row = %d, current col = %d\n", current_row, current_col);
315 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
317 workspace_map_clients(conn, c_ws);
319 /* POTENTIAL TO IMPROVE HERE: due to the call to _map_clients first and
320 * render_layout afterwards, there is a short flickering on the source
321 * workspace (assign ws 3 to output 0, ws 4 to output 1, create single
322 * client on ws 4, move it to ws 3, switch to ws 3, you’ll see the
325 /* Restore focus on the new workspace */
326 Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack));
327 if (last_focused != SLIST_END(&(c_ws->focus_stack)))
328 set_focus(conn, last_focused, true);
329 else xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
333 /* We can warp the pointer only after the window has been
334 * reconfigured in render_layout, otherwise the pointer will
335 * be warped to the old position, which will not work when we
336 * moved it to another output. */
337 if (last_focused != SLIST_END(&(c_ws->focus_stack)) && need_warp) {
338 client_warp_pointer_into(conn, last_focused);
346 * Assigns the given workspace to the given output by correctly updating its
347 * state and reconfiguring all the clients on this workspace.
349 * This is called when initializing a output and when re-assigning it to a
350 * different output which just got available (if you configured it to be on
351 * output 1 and you just plugged in output 1).
354 void workspace_assign_to(Workspace *ws, Output *output, bool hide_it) {
357 bool visible = workspace_is_visible(ws);
361 /* Copy the dimensions from the virtual output */
362 memcpy(&(ws->rect), &(ws->output->rect), sizeof(Rect));
364 ewmh_update_workarea();
366 /* Force reconfiguration for each client on that workspace */
367 SLIST_FOREACH(client, &(ws->focus_stack), focus_clients) {
368 client->force_reconfigure = true;
375 /* Render the workspace to reconfigure the clients. However, they will be visible now, so… */
376 render_workspace(global_conn, output, ws);
378 /* …unless we want to see them at the moment, we should hide that workspace */
379 if (visible && !hide_it)
382 /* however, if this is the current workspace, we only need to adjust
383 * the output’s current_workspace pointer (and must not unmap the
386 DLOG("Need to adjust output->current_workspace...\n");
387 output->current_workspace = c_ws;
388 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
392 workspace_unmap_clients(global_conn, ws);
396 * Initializes the given workspace if it is not already initialized. The given
397 * screen is to be understood as a fallback, if the workspace itself either
398 * was not assigned to a particular screen or cannot be placed there because
399 * the screen is not attached at the moment.
402 void workspace_initialize(Workspace *ws, Output *output, bool recheck) {
405 if (ws->output != NULL && !recheck) {
406 DLOG("Workspace already initialized\n");
410 old_output = ws->output;
412 /* If this workspace has no preferred output or if the output it wants
413 * to be on is not available at the moment, we initialize it with
414 * the output which was given */
415 if (ws->preferred_output == NULL ||
416 (ws->output = get_output_by_name(ws->preferred_output)) == NULL)
419 DLOG("old_output = %p, ws->output = %p\n", old_output, ws->output);
420 /* If the assignment did not change, we do not need to update anything */
421 if (old_output != NULL && ws->output == old_output)
424 workspace_assign_to(ws, ws->output, false);
428 * Gets the first unused workspace for the given screen, taking into account
429 * the preferred_output setting of every workspace (workspace assignments).
432 Workspace *get_first_workspace_for_output(Output *output) {
433 Workspace *result = NULL;
436 TAILQ_FOREACH(ws, workspaces, workspaces) {
437 if (ws->preferred_output == NULL ||
438 get_output_by_name(ws->preferred_output) != output)
445 if (result == NULL) {
446 /* No assignment found, returning first unused workspace */
447 TAILQ_FOREACH(ws, workspaces, workspaces) {
448 if (ws->output != NULL)
456 if (result == NULL) {
457 DLOG("No existing free workspace found to assign, creating a new one\n");
460 TAILQ_FOREACH(ws, workspaces, workspaces)
462 result = workspace_get(last_ws + 1, NULL);
465 workspace_initialize(result, output, false);
471 static bool get_urgency_flag(Con *con) {
473 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
474 if (child->urgent || get_urgency_flag(child))
477 TAILQ_FOREACH(child, &(con->floating_head), floating_windows)
478 if (child->urgent || get_urgency_flag(child))
485 * Goes through all clients on the given workspace and updates the workspace’s
486 * urgent flag accordingly.
489 void workspace_update_urgent_flag(Con *ws) {
490 bool old_flag = ws->urgent;
491 ws->urgent = get_urgency_flag(ws);
492 DLOG("Workspace urgency flag changed from %d to %d\n", old_flag, ws->urgent);
494 if (old_flag != ws->urgent)
495 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"urgent\"}");
499 * 'Forces' workspace orientation by moving all cons into a new split-con with
500 * the same orientation as the workspace and then changing the workspace
504 void ws_force_orientation(Con *ws, orientation_t orientation) {
505 /* 1: create a new split container */
506 Con *split = con_new(NULL);
509 /* 2: copy layout and orientation from workspace */
510 split->layout = ws->layout;
511 split->orientation = ws->orientation;
513 Con *old_focused = TAILQ_FIRST(&(ws->focus_head));
515 /* 3: move the existing cons of this workspace below the new con */
516 DLOG("Moving cons\n");
517 while (!TAILQ_EMPTY(&(ws->nodes_head))) {
518 Con *child = TAILQ_FIRST(&(ws->nodes_head));
520 con_attach(child, split, true);
523 /* 4: switch workspace orientation */
524 ws->orientation = orientation;
526 /* 5: attach the new split container to the workspace */
527 DLOG("Attaching new split to ws\n");
528 con_attach(split, ws, false);
530 /* 6: fix the percentages */
534 con_focus(old_focused);