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) {
21 Con *output, *workspace = NULL, *current;
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(current, &(output->nodes_head), nodes) {
28 if (strcasecmp(current->name, num) != 0)
36 LOG("getting ws %s\n", num);
37 if (workspace == NULL) {
38 LOG("need to create this one\n");
39 output = con_get_output(focused);
40 LOG("got output %p\n", output);
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, output, false);
65 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"init\"}");
68 //ewmh_update_workarea();
76 * Sets the name (or just its number) for the given workspace. This has to
77 * be called for every workspace as the rendering function
78 * (render_internal_bar) relies on workspace->name and workspace->name_len
82 void workspace_set_name(Workspace *ws, const char *name) {
87 ret = asprintf(&label, "%d: %s", ws->num + 1, name);
88 else ret = asprintf(&label, "%d", ws->num + 1);
91 errx(1, "asprintf() failed");
96 ws->name = convert_utf8_to_ucs2(label, &(ws->name_len));
97 if (config.font != NULL)
98 ws->text_width = predict_text_width(global_conn, config.font, ws->name, ws->name_len);
99 else ws->text_width = 0;
100 ws->utf8_name = label;
105 * Returns true if the workspace is currently visible. Especially important for
106 * multi-monitor environments, as they can have multiple currenlty active
110 bool workspace_is_visible(Con *ws) {
111 Con *output = con_get_output(ws);
114 Con *fs = con_get_fullscreen_con(output);
115 LOG("workspace visible? fs = %p, ws = %p\n", fs, ws);
120 * XXX: we need to clean up all this recursive walking code.
123 Con *_get_sticky(Con *con, const char *sticky_group, Con *exclude) {
126 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
127 if (current != exclude &&
128 current->sticky_group != NULL &&
129 current->window != NULL &&
130 strcmp(current->sticky_group, sticky_group) == 0)
133 Con *recurse = _get_sticky(current, sticky_group, exclude);
138 TAILQ_FOREACH(current, &(con->floating_head), floating_windows) {
139 if (current != exclude &&
140 current->sticky_group != NULL &&
141 current->window != NULL &&
142 strcmp(current->sticky_group, sticky_group) == 0)
145 Con *recurse = _get_sticky(current, sticky_group, exclude);
154 * Reassigns all child windows in sticky containers. Called when the user
155 * changes workspaces.
157 * XXX: what about sticky containers which contain containers?
160 static void workspace_reassign_sticky(Con *con) {
162 /* 1: go through all containers */
164 /* handle all children and floating windows of this node */
165 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
166 if (current->sticky_group == NULL) {
167 workspace_reassign_sticky(current);
171 LOG("Ah, this one is sticky: %s / %p\n", current->name, current);
172 /* 2: find a window which we can re-assign */
173 Con *output = con_get_output(current);
174 Con *src = _get_sticky(output, current->sticky_group, current);
177 LOG("No window found for this sticky group\n");
178 workspace_reassign_sticky(current);
182 x_move_win(src, current);
183 current->window = src->window;
184 current->mapped = true;
188 x_reparent_child(current, src);
190 LOG("re-assigned window from src %p to dest %p\n", src, current);
193 TAILQ_FOREACH(current, &(con->floating_head), floating_windows)
194 workspace_reassign_sticky(current);
198 * Switches to the given workspace
201 void workspace_show(const char *num) {
202 Con *workspace, *current, *old;
204 workspace = workspace_get(num);
206 /* disable fullscreen for the other workspaces and get the workspace we are
208 TAILQ_FOREACH(current, &(workspace->parent->nodes_head), nodes) {
209 if (current->fullscreen_mode == CF_OUTPUT)
211 current->fullscreen_mode = CF_NONE;
214 /* Check if the the currently focused con is on the same Output as the
215 * workspace we chose as 'old'. If not, use the workspace of the currently
217 if (con_get_workspace(focused)->parent != old->parent)
218 old = con_get_workspace(focused);
220 /* enable fullscreen for the target workspace. If it happens to be the
221 * same one we are currently on anyways, we can stop here. */
222 workspace->fullscreen_mode = CF_OUTPUT;
223 if (workspace == old)
226 workspace_reassign_sticky(workspace);
228 LOG("switching to %p\n", workspace);
229 Con *next = workspace;
231 while (!TAILQ_EMPTY(&(next->focus_head)))
232 next = TAILQ_FIRST(&(next->focus_head));
235 if (TAILQ_EMPTY(&(old->nodes_head)) && TAILQ_EMPTY(&(old->floating_head))) {
236 /* check if this workspace is currently visible */
237 if (!workspace_is_visible(old)) {
238 LOG("Closing old workspace (%p / %s), it is empty\n", old, old->name);
239 tree_close(old, false, false);
240 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"empty\"}");
245 workspace->fullscreen_mode = CF_OUTPUT;
246 LOG("focused now = %p / %s\n", focused, focused->name);
248 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
251 /* Check if the workspace has not been used yet */
252 workspace_initialize(t_ws, c_ws->output, false);
254 if (c_ws->output != t_ws->output) {
255 /* We need to switch to the other output first */
256 DLOG("moving over to other output.\n");
258 /* Store the old client */
259 Client *old_client = CUR_CELL->currently_focused;
261 c_ws = t_ws->output->current_workspace;
262 current_col = c_ws->current_col;
263 current_row = c_ws->current_row;
264 if (CUR_CELL->currently_focused != NULL)
267 Rect *dims = &(c_ws->output->rect);
268 xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0,
269 dims->x + (dims->width / 2), dims->y + (dims->height / 2));
272 /* Re-decorate the old client, it’s not focused anymore */
273 if ((old_client != NULL) && !old_client->dock)
274 redecorate_window(conn, old_client);
275 else xcb_flush(conn);
277 /* We need to check if a global fullscreen-client is blocking
278 * the t_ws and if necessary switch that to local fullscreen */
279 Client* client = c_ws->fullscreen_client;
280 if (client != NULL && client->workspace != c_ws) {
281 if (c_ws->fullscreen_client->workspace != c_ws)
282 c_ws->fullscreen_client = NULL;
283 client_enter_fullscreen(conn, client, false);
287 /* Check if we need to change something or if we’re already there */
288 if (c_ws->output->current_workspace->num == (workspace-1)) {
289 Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack));
290 if (last_focused != SLIST_END(&(c_ws->focus_stack)))
291 set_focus(conn, last_focused, true);
293 client_warp_pointer_into(conn, last_focused);
297 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
302 Workspace *old_workspace = c_ws;
303 c_ws = t_ws->output->current_workspace = workspace_get(workspace-1);
305 /* Unmap all clients of the old workspace */
306 workspace_unmap_clients(conn, old_workspace);
308 current_row = c_ws->current_row;
309 current_col = c_ws->current_col;
310 DLOG("new current row = %d, current col = %d\n", current_row, current_col);
312 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
314 workspace_map_clients(conn, c_ws);
316 /* POTENTIAL TO IMPROVE HERE: due to the call to _map_clients first and
317 * render_layout afterwards, there is a short flickering on the source
318 * workspace (assign ws 3 to output 0, ws 4 to output 1, create single
319 * client on ws 4, move it to ws 3, switch to ws 3, you’ll see the
322 /* Restore focus on the new workspace */
323 Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack));
324 if (last_focused != SLIST_END(&(c_ws->focus_stack)))
325 set_focus(conn, last_focused, true);
326 else xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
330 /* We can warp the pointer only after the window has been
331 * reconfigured in render_layout, otherwise the pointer will
332 * be warped to the old position, which will not work when we
333 * moved it to another output. */
334 if (last_focused != SLIST_END(&(c_ws->focus_stack)) && need_warp) {
335 client_warp_pointer_into(conn, last_focused);
343 * Assigns the given workspace to the given output by correctly updating its
344 * state and reconfiguring all the clients on this workspace.
346 * This is called when initializing a output and when re-assigning it to a
347 * different output which just got available (if you configured it to be on
348 * output 1 and you just plugged in output 1).
351 void workspace_assign_to(Workspace *ws, Output *output, bool hide_it) {
354 bool visible = workspace_is_visible(ws);
358 /* Copy the dimensions from the virtual output */
359 memcpy(&(ws->rect), &(ws->output->rect), sizeof(Rect));
361 ewmh_update_workarea();
363 /* Force reconfiguration for each client on that workspace */
364 SLIST_FOREACH(client, &(ws->focus_stack), focus_clients) {
365 client->force_reconfigure = true;
372 /* Render the workspace to reconfigure the clients. However, they will be visible now, so… */
373 render_workspace(global_conn, output, ws);
375 /* …unless we want to see them at the moment, we should hide that workspace */
376 if (visible && !hide_it)
379 /* however, if this is the current workspace, we only need to adjust
380 * the output’s current_workspace pointer (and must not unmap the
383 DLOG("Need to adjust output->current_workspace...\n");
384 output->current_workspace = c_ws;
385 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
389 workspace_unmap_clients(global_conn, ws);
393 * Initializes the given workspace if it is not already initialized. The given
394 * screen is to be understood as a fallback, if the workspace itself either
395 * was not assigned to a particular screen or cannot be placed there because
396 * the screen is not attached at the moment.
399 void workspace_initialize(Workspace *ws, Output *output, bool recheck) {
402 if (ws->output != NULL && !recheck) {
403 DLOG("Workspace already initialized\n");
407 old_output = ws->output;
409 /* If this workspace has no preferred output or if the output it wants
410 * to be on is not available at the moment, we initialize it with
411 * the output which was given */
412 if (ws->preferred_output == NULL ||
413 (ws->output = get_output_by_name(ws->preferred_output)) == NULL)
416 DLOG("old_output = %p, ws->output = %p\n", old_output, ws->output);
417 /* If the assignment did not change, we do not need to update anything */
418 if (old_output != NULL && ws->output == old_output)
421 workspace_assign_to(ws, ws->output, false);
425 * Gets the first unused workspace for the given screen, taking into account
426 * the preferred_output setting of every workspace (workspace assignments).
429 Workspace *get_first_workspace_for_output(Output *output) {
430 Workspace *result = NULL;
433 TAILQ_FOREACH(ws, workspaces, workspaces) {
434 if (ws->preferred_output == NULL ||
435 get_output_by_name(ws->preferred_output) != output)
442 if (result == NULL) {
443 /* No assignment found, returning first unused workspace */
444 TAILQ_FOREACH(ws, workspaces, workspaces) {
445 if (ws->output != NULL)
453 if (result == NULL) {
454 DLOG("No existing free workspace found to assign, creating a new one\n");
457 TAILQ_FOREACH(ws, workspaces, workspaces)
459 result = workspace_get(last_ws + 1);
462 workspace_initialize(result, output, false);
468 static bool get_urgency_flag(Con *con) {
470 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
471 if (child->urgent || get_urgency_flag(child))
474 TAILQ_FOREACH(child, &(con->floating_head), floating_windows)
475 if (child->urgent || get_urgency_flag(child))
482 * Goes through all clients on the given workspace and updates the workspace’s
483 * urgent flag accordingly.
486 void workspace_update_urgent_flag(Con *ws) {
487 bool old_flag = ws->urgent;
488 ws->urgent = get_urgency_flag(ws);
489 DLOG("Workspace urgency flag changed from %d to %d\n", old_flag, ws->urgent);
491 if (old_flag != ws->urgent)
492 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"urgent\"}");