/*
- * vim:ts=8:expandtab
+ * vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
- *
- * © 2009 Michael Stapelberg and contributors
- *
- * See file LICENSE for license information.
+ * © 2009-2010 Michael Stapelberg and contributors (see also: LICENSE)
*
* workspace.c: Functions for modifying workspaces
*
*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <err.h>
+#include <limits.h>
-#include "util.h"
-#include "data.h"
-#include "i3.h"
-#include "config.h"
-#include "xcb.h"
+#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
errx(1, "asprintf() failed");
FREE(ws->name);
+ FREE(ws->utf8_name);
ws->name = convert_utf8_to_ucs2(label, &(ws->name_len));
- ws->text_width = predict_text_width(global_conn, config.font, ws->name, ws->name_len);
-
- free(label);
+ 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
* workspaces.
*
*/
-bool workspace_is_visible(Workspace *ws) {
- return (ws->screen->current_workspace == ws->num);
+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);
}
projects / i3 / i3 / blobdiff