/* * vim:ts=4:sw=4:expandtab * * i3 - an improved dynamic tiling window manager * © 2009-2010 Michael Stapelberg and contributors (see also: LICENSE) * * workspace.c: Functions for modifying workspaces * */ #include #include "all.h" /* * Returns a pointer to the workspace with the given number (starting at 0), * creating the workspace if necessary (by allocating the necessary amount of * memory and initializing the data structures correctly). * */ Con *workspace_get(const char *num, bool *created) { Con *output, *workspace = NULL, *child; /* TODO: could that look like this in the future? GET_MATCHING_NODE(workspace, croot, strcasecmp(current->name, num) != 0); */ TAILQ_FOREACH(output, &(croot->nodes_head), nodes) TAILQ_FOREACH(child, &(output_get_content(output)->nodes_head), nodes) { if (strcasecmp(child->name, num) != 0) continue; workspace = child; break; } LOG("getting ws %s\n", num); if (workspace == NULL) { LOG("need to create this one\n"); output = con_get_output(focused); Con *content = output_get_content(output); LOG("got output %p with content %p\n", output, content); /* We need to attach this container after setting its type. con_attach * will handle CT_WORKSPACEs differently */ workspace = con_new(NULL); char *name; asprintf(&name, "[i3 con] workspace %s", num); x_set_name(workspace, name); free(name); workspace->type = CT_WORKSPACE; FREE(workspace->name); workspace->name = sstrdup(num); /* We set ->num to the number if this workspace’s name consists only of * a positive number. Otherwise it’s a named ws and num will be -1. */ char *end; long parsed_num = strtol(num, &end, 10); if (parsed_num == LONG_MIN || parsed_num == LONG_MAX || parsed_num < 0 || (end && *end != '\0')) workspace->num = -1; else workspace->num = parsed_num; LOG("num = %d\n", workspace->num); workspace->orientation = HORIZ; con_attach(workspace, content, false); ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"init\"}"); if (created != NULL) *created = true; } else if (created != NULL) { *created = false; } return workspace; } #if 0 /* * Sets the name (or just its number) for the given workspace. This has to * be called for every workspace as the rendering function * (render_internal_bar) relies on workspace->name and workspace->name_len * being ready-to-use. * */ void workspace_set_name(Workspace *ws, const char *name) { char *label; int ret; if (name != NULL) ret = asprintf(&label, "%d: %s", ws->num + 1, name); else ret = asprintf(&label, "%d", ws->num + 1); if (ret == -1) errx(1, "asprintf() failed"); FREE(ws->name); FREE(ws->utf8_name); ws->name = convert_utf8_to_ucs2(label, &(ws->name_len)); if (config.font != NULL) ws->text_width = predict_text_width(global_conn, config.font, ws->name, ws->name_len); else ws->text_width = 0; ws->utf8_name = label; } #endif /* * Returns true if the workspace is currently visible. Especially important for * multi-monitor environments, as they can have multiple currenlty active * workspaces. * */ bool workspace_is_visible(Con *ws) { Con *output = con_get_output(ws); if (output == NULL) return false; Con *fs = con_get_fullscreen_con(output); LOG("workspace visible? fs = %p, ws = %p\n", fs, ws); return (fs == ws); } /* * XXX: we need to clean up all this recursive walking code. * */ Con *_get_sticky(Con *con, const char *sticky_group, Con *exclude) { Con *current; TAILQ_FOREACH(current, &(con->nodes_head), nodes) { if (current != exclude && current->sticky_group != NULL && current->window != NULL && strcmp(current->sticky_group, sticky_group) == 0) return current; Con *recurse = _get_sticky(current, sticky_group, exclude); if (recurse != NULL) return recurse; } TAILQ_FOREACH(current, &(con->floating_head), floating_windows) { if (current != exclude && current->sticky_group != NULL && current->window != NULL && strcmp(current->sticky_group, sticky_group) == 0) return current; Con *recurse = _get_sticky(current, sticky_group, exclude); if (recurse != NULL) return recurse; } return NULL; } /* * Reassigns all child windows in sticky containers. Called when the user * changes workspaces. * * XXX: what about sticky containers which contain containers? * */ static void workspace_reassign_sticky(Con *con) { Con *current; /* 1: go through all containers */ /* handle all children and floating windows of this node */ TAILQ_FOREACH(current, &(con->nodes_head), nodes) { if (current->sticky_group == NULL) { workspace_reassign_sticky(current); continue; } LOG("Ah, this one is sticky: %s / %p\n", current->name, current); /* 2: find a window which we can re-assign */ Con *output = con_get_output(current); Con *src = _get_sticky(output, current->sticky_group, current); if (src == NULL) { LOG("No window found for this sticky group\n"); workspace_reassign_sticky(current); continue; } x_move_win(src, current); current->window = src->window; current->mapped = true; src->window = NULL; src->mapped = false; x_reparent_child(current, src); LOG("re-assigned window from src %p to dest %p\n", src, current); } TAILQ_FOREACH(current, &(con->floating_head), floating_windows) workspace_reassign_sticky(current); } /* * Switches to the given workspace * */ void workspace_show(const char *num) { Con *workspace, *current, *old = NULL; bool changed_num_workspaces; workspace = workspace_get(num, &changed_num_workspaces); /* disable fullscreen for the other workspaces and get the workspace we are * currently on. */ TAILQ_FOREACH(current, &(workspace->parent->nodes_head), nodes) { if (current->fullscreen_mode == CF_OUTPUT) old = current; current->fullscreen_mode = CF_NONE; } assert(old != NULL); /* Check if the the currently focused con is on the same Output as the * workspace we chose as 'old'. If not, use the workspace of the currently * focused con */ Con *ws = con_get_workspace(focused); if (ws && ws->parent != old->parent) old = ws; /* enable fullscreen for the target workspace. If it happens to be the * same one we are currently on anyways, we can stop here. */ workspace->fullscreen_mode = CF_OUTPUT; if (workspace == old) return; workspace_reassign_sticky(workspace); LOG("switching to %p\n", workspace); Con *next = con_descend_focused(workspace); if (old && TAILQ_EMPTY(&(old->nodes_head)) && TAILQ_EMPTY(&(old->floating_head))) { /* check if this workspace is currently visible */ if (!workspace_is_visible(old)) { LOG("Closing old workspace (%p / %s), it is empty\n", old, old->name); tree_close(old, false, false); ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"empty\"}"); changed_num_workspaces = true; } } con_focus(next); workspace->fullscreen_mode = CF_OUTPUT; LOG("focused now = %p / %s\n", focused, focused->name); /* Update the EWMH hints */ if (changed_num_workspaces) ewmh_update_workarea(); ewmh_update_current_desktop(); ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}"); #if 0 /* Check if the workspace has not been used yet */ workspace_initialize(t_ws, c_ws->output, false); if (c_ws->output != t_ws->output) { /* We need to switch to the other output first */ DLOG("moving over to other output.\n"); /* Store the old client */ Client *old_client = CUR_CELL->currently_focused; c_ws = t_ws->output->current_workspace; current_col = c_ws->current_col; current_row = c_ws->current_row; if (CUR_CELL->currently_focused != NULL) need_warp = true; else { Rect *dims = &(c_ws->output->rect); xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0, dims->x + (dims->width / 2), dims->y + (dims->height / 2)); } /* Re-decorate the old client, it’s not focused anymore */ if ((old_client != NULL) && !old_client->dock) redecorate_window(conn, old_client); else xcb_flush(conn); /* We need to check if a global fullscreen-client is blocking * the t_ws and if necessary switch that to local fullscreen */ Client* client = c_ws->fullscreen_client; if (client != NULL && client->workspace != c_ws) { if (c_ws->fullscreen_client->workspace != c_ws) c_ws->fullscreen_client = NULL; client_enter_fullscreen(conn, client, false); } } /* Check if we need to change something or if we’re already there */ if (c_ws->output->current_workspace->num == (workspace-1)) { Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack)); if (last_focused != SLIST_END(&(c_ws->focus_stack))) set_focus(conn, last_focused, true); if (need_warp) { client_warp_pointer_into(conn, last_focused); xcb_flush(conn); } ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}"); return; } Workspace *old_workspace = c_ws; c_ws = t_ws->output->current_workspace = workspace_get(workspace-1); /* Unmap all clients of the old workspace */ workspace_unmap_clients(conn, old_workspace); current_row = c_ws->current_row; current_col = c_ws->current_col; DLOG("new current row = %d, current col = %d\n", current_row, current_col); ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}"); workspace_map_clients(conn, c_ws); /* POTENTIAL TO IMPROVE HERE: due to the call to _map_clients first and * render_layout afterwards, there is a short flickering on the source * workspace (assign ws 3 to output 0, ws 4 to output 1, create single * client on ws 4, move it to ws 3, switch to ws 3, you’ll see the * flickering). */ /* Restore focus on the new workspace */ Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack)); if (last_focused != SLIST_END(&(c_ws->focus_stack))) set_focus(conn, last_focused, true); else xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME); render_layout(conn); /* We can warp the pointer only after the window has been * reconfigured in render_layout, otherwise the pointer will * be warped to the old position, which will not work when we * moved it to another output. */ if (last_focused != SLIST_END(&(c_ws->focus_stack)) && need_warp) { client_warp_pointer_into(conn, last_focused); xcb_flush(conn); } #endif } #if 0 /* * Assigns the given workspace to the given output by correctly updating its * state and reconfiguring all the clients on this workspace. * * This is called when initializing a output and when re-assigning it to a * different output which just got available (if you configured it to be on * output 1 and you just plugged in output 1). * */ void workspace_assign_to(Workspace *ws, Output *output, bool hide_it) { Client *client; bool empty = true; bool visible = workspace_is_visible(ws); ws->output = output; /* Copy the dimensions from the virtual output */ memcpy(&(ws->rect), &(ws->output->rect), sizeof(Rect)); ewmh_update_workarea(); /* Force reconfiguration for each client on that workspace */ SLIST_FOREACH(client, &(ws->focus_stack), focus_clients) { client->force_reconfigure = true; empty = false; } if (empty) return; /* Render the workspace to reconfigure the clients. However, they will be visible now, so… */ render_workspace(global_conn, output, ws); /* …unless we want to see them at the moment, we should hide that workspace */ if (visible && !hide_it) return; /* however, if this is the current workspace, we only need to adjust * the output’s current_workspace pointer (and must not unmap the * windows) */ if (c_ws == ws) { DLOG("Need to adjust output->current_workspace...\n"); output->current_workspace = c_ws; ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}"); return; } workspace_unmap_clients(global_conn, ws); } /* * Initializes the given workspace if it is not already initialized. The given * screen is to be understood as a fallback, if the workspace itself either * was not assigned to a particular screen or cannot be placed there because * the screen is not attached at the moment. * */ void workspace_initialize(Workspace *ws, Output *output, bool recheck) { Output *old_output; if (ws->output != NULL && !recheck) { DLOG("Workspace already initialized\n"); return; } old_output = ws->output; /* If this workspace has no preferred output or if the output it wants * to be on is not available at the moment, we initialize it with * the output which was given */ if (ws->preferred_output == NULL || (ws->output = get_output_by_name(ws->preferred_output)) == NULL) ws->output = output; DLOG("old_output = %p, ws->output = %p\n", old_output, ws->output); /* If the assignment did not change, we do not need to update anything */ if (old_output != NULL && ws->output == old_output) return; workspace_assign_to(ws, ws->output, false); } /* * Gets the first unused workspace for the given screen, taking into account * the preferred_output setting of every workspace (workspace assignments). * */ Workspace *get_first_workspace_for_output(Output *output) { Workspace *result = NULL; Workspace *ws; TAILQ_FOREACH(ws, workspaces, workspaces) { if (ws->preferred_output == NULL || get_output_by_name(ws->preferred_output) != output) continue; result = ws; break; } if (result == NULL) { /* No assignment found, returning first unused workspace */ TAILQ_FOREACH(ws, workspaces, workspaces) { if (ws->output != NULL) continue; result = ws; break; } } if (result == NULL) { DLOG("No existing free workspace found to assign, creating a new one\n"); int last_ws = 0; TAILQ_FOREACH(ws, workspaces, workspaces) last_ws = ws->num; result = workspace_get(last_ws + 1, NULL); } workspace_initialize(result, output, false); return result; } #endif static bool get_urgency_flag(Con *con) { Con *child; TAILQ_FOREACH(child, &(con->nodes_head), nodes) if (child->urgent || get_urgency_flag(child)) return true; TAILQ_FOREACH(child, &(con->floating_head), floating_windows) if (child->urgent || get_urgency_flag(child)) return true; return false; } /* * Goes through all clients on the given workspace and updates the workspace’s * urgent flag accordingly. * */ void workspace_update_urgent_flag(Con *ws) { bool old_flag = ws->urgent; ws->urgent = get_urgency_flag(ws); DLOG("Workspace urgency flag changed from %d to %d\n", old_flag, ws->urgent); if (old_flag != ws->urgent) ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"urgent\"}"); } /* * 'Forces' workspace orientation by moving all cons into a new split-con with * the same orientation as the workspace and then changing the workspace * orientation. * */ void ws_force_orientation(Con *ws, orientation_t orientation) { /* 1: create a new split container */ Con *split = con_new(NULL); split->parent = ws; /* 2: copy layout and orientation from workspace */ split->layout = ws->layout; split->orientation = ws->orientation; Con *old_focused = TAILQ_FIRST(&(ws->focus_head)); /* 3: move the existing cons of this workspace below the new con */ DLOG("Moving cons\n"); while (!TAILQ_EMPTY(&(ws->nodes_head))) { Con *child = TAILQ_FIRST(&(ws->nodes_head)); con_detach(child); con_attach(child, split, true); } /* 4: switch workspace orientation */ ws->orientation = orientation; /* 5: attach the new split container to the workspace */ DLOG("Attaching new split to ws\n"); con_attach(split, ws, false); /* 6: fix the percentages */ con_fix_percent(ws); if (old_focused) con_focus(old_focused); }