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