]> git.sur5r.net Git - i3/i3/blobdiff - src/workspace.c
Bring back some more EWMH support.
[i3/i3] / src / workspace.c
index cafc85ebc9e25e786c90344d73cd81aca29d60a3..77b5ceb2eca52b91276ecd13d3d0ce7214ef9f42 100644 (file)
@@ -1,31 +1,79 @@
 /*
- * 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 <string.h>
 #include <limits.h>
-#include <err.h>
-
-#include "util.h"
-#include "data.h"
-#include "i3.h"
-#include "config.h"
-#include "xcb.h"
-#include "table.h"
-#include "xinerama.h"
-#include "layout.h"
-#include "workspace.h"
-#include "client.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
@@ -46,14 +94,15 @@ void workspace_set_name(Workspace *ws, const char *name) {
                 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;
-
-        free(label);
+        ws->utf8_name = label;
 }
+#endif
 
 /*
  * Returns true if the workspace is currently visible. Especially important for
@@ -61,43 +110,169 @@ void workspace_set_name(Workspace *ws, const char *name) {
  * 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(xcb_connection_t *conn, int workspace) {
-        bool need_warp = false;
-        xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
-        /* t_ws (to workspace) is just a convenience pointer to the workspace we’re switching to */
-        Workspace *t_ws = &(workspaces[workspace-1]);
+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;
+        }
+    }
 
-        LOG("show_workspace(%d)\n", workspace);
+    con_focus(next);
+    workspace->fullscreen_mode = CF_OUTPUT;
+    LOG("focused now = %p / %s\n", focused, focused->name);
 
-        /* Store current_row/current_col */
-        c_ws->current_row = current_row;
-        c_ws->current_col = current_col;
+    /* 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->screen);
+        workspace_initialize(t_ws, c_ws->output, false);
 
-        if (c_ws->screen != t_ws->screen) {
-                /* We need to switch to the other screen first */
-                LOG("moving over to other screen.\n");
+        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 = &(workspaces[t_ws->screen->current_workspace]);
+                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->screen->rect);
+                        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));
                 }
@@ -106,98 +281,120 @@ void workspace_show(xcb_connection_t *conn, int workspace) {
                 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->screen->current_workspace == (workspace-1)) {
+        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))) {
+                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);
-                        }
+                if (need_warp) {
+                        client_warp_pointer_into(conn, last_focused);
+                        xcb_flush(conn);
                 }
 
+                ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"focus\"}");
+
                 return;
         }
 
-        t_ws->screen->current_workspace = workspace-1;
         Workspace *old_workspace = c_ws;
-        c_ws = &workspaces[workspace-1];
+        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;
-        LOG("new current row = %d, current col = %d\n", current_row, 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))) {
+        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);
-                }
-        } else xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
+        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
 /*
- * Parses the preferred_screen property of a workspace. You can either specify
- * the screen number (it is not given that the screen numbering always stays
- * the same) or the screen coordinates (exact coordinates, e.g. 1280 will match
- * the screen starting at x=1280, but 1281 will not). For coordinates, you can
- * either specify an x coordinate ("1280") or an y coordinate ("x800") or both
- * ("1280x800").
+ * 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).
  *
  */
-static i3Screen *get_screen_from_preference(struct screens_head *slist, char *preference) {
-        i3Screen *screen;
-        char *rest;
-        int preferred_screen = strtol(preference, &rest, 10);
-
-        LOG("Getting screen for preference \"%s\" (%d)\n", preference, preferred_screen);
-
-        if ((rest == preference) || (preferred_screen >= num_screens)) {
-                int x = INT_MAX, y = INT_MAX;
-                if (strchr(preference, 'x') != NULL) {
-                        /* Check if only the y coordinate was specified */
-                        if (*preference == 'x')
-                                y = atoi(preference+1);
-                        else {
-                                x = atoi(preference);
-                                y = atoi(strchr(preference, 'x') + 1);
-                        }
-                } else {
-                        x = atoi(preference);
-                }
+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();
 
-                LOG("Looking for screen at %d x %d\n", x, y);
-
-                TAILQ_FOREACH(screen, slist, screens)
-                        if ((x == INT_MAX || screen->rect.x == x) &&
-                            (y == INT_MAX || screen->rect.y == y)) {
-                                LOG("found %p\n", screen);
-                                return screen;
-                        }
-
-                LOG("none found\n");
-                return NULL;
-        } else {
-                int c = 0;
-                TAILQ_FOREACH(screen, slist, screens)
-                        if (c++ == preferred_screen)
-                                return screen;
+        /* Force reconfiguration for each client on that workspace */
+        SLIST_FOREACH(client, &(ws->focus_stack), focus_clients) {
+                client->force_reconfigure = true;
+                empty = false;
         }
 
-        return NULL;
+        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);
 }
 
 /*
@@ -207,36 +404,43 @@ static i3Screen *get_screen_from_preference(struct screens_head *slist, char *pr
  * the screen is not attached at the moment.
  *
  */
-void workspace_initialize(Workspace *ws, i3Screen *screen) {
-        if (ws->screen != NULL) {
-                LOG("Workspace already initialized\n");
+void workspace_initialize(Workspace *ws, Output *output, bool recheck) {
+        Output *old_output;
+
+        if (ws->output != NULL && !recheck) {
+                DLOG("Workspace already initialized\n");
                 return;
         }
 
-        /* If this workspace has no preferred screen or if the screen it wants
+        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 screen which was given */
-        if (ws->preferred_screen == NULL ||
-            (ws->screen = get_screen_from_preference(virtual_screens, ws->preferred_screen)) == NULL)
-                ws->screen = screen;
-        else { LOG("yay, found assignment\n"); }
-
-        /* Copy the dimensions from the virtual screen */
-        memcpy(&(ws->rect), &(ws->screen->rect), sizeof(Rect));
+         * 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_screen setting of every workspace (workspace assignments).
+ * the preferred_output setting of every workspace (workspace assignments).
  *
  */
-Workspace *get_first_workspace_for_screen(struct screens_head *slist, i3Screen *screen) {
+Workspace *get_first_workspace_for_output(Output *output) {
         Workspace *result = NULL;
 
-        for (int c = 0; c < 10; c++) {
-                Workspace *ws = &(workspaces[c]);
-                if (ws->preferred_screen == NULL ||
-                    !screens_are_equal(get_screen_from_preference(slist, ws->preferred_screen), screen))
+        Workspace *ws;
+        TAILQ_FOREACH(ws, workspaces, workspaces) {
+                if (ws->preferred_output == NULL ||
+                    get_output_by_name(ws->preferred_output) != output)
                         continue;
 
                 result = ws;
@@ -245,127 +449,92 @@ Workspace *get_first_workspace_for_screen(struct screens_head *slist, i3Screen *
 
         if (result == NULL) {
                 /* No assignment found, returning first unused workspace */
-                for (int c = 0; c < 10; c++) {
-                        if (workspaces[c].screen != NULL)
+                TAILQ_FOREACH(ws, workspaces, workspaces) {
+                        if (ws->output != NULL)
                                 continue;
 
-                        result = &(workspaces[c]);
+                        result = ws;
                         break;
                 }
         }
 
-        if (result != NULL) {
-                workspace_initialize(result, screen);
-                return result;
+        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);
         }
 
-        LOG("WARNING: No free workspace found to assign!\n");
-        return NULL;
+        workspace_initialize(result, output, false);
+        return result;
 }
 
-/*
- * Maps all clients (and stack windows) of the given workspace.
- *
- */
-void workspace_map_clients(xcb_connection_t *conn, Workspace *ws) {
-        Client *client;
-
-        ignore_enter_notify_forall(conn, ws, true);
-
-        /* Map all clients on the new workspace */
-        FOR_TABLE(ws)
-                CIRCLEQ_FOREACH(client, &(ws->table[cols][rows]->clients), clients)
-                        client_map(conn, client);
+#endif
 
-        /* Map all floating clients */
-        if (!ws->floating_hidden)
-                TAILQ_FOREACH(client, &(ws->floating_clients), floating_clients)
-                        client_map(conn, client);
+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;
 
-        /* Map all stack windows, if any */
-        struct Stack_Window *stack_win;
-        SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
-                if (stack_win->container->workspace == ws)
-                        xcb_map_window(conn, stack_win->window);
+    TAILQ_FOREACH(child, &(con->floating_head), floating_windows)
+        if (child->urgent || get_urgency_flag(child))
+            return true;
 
-        ignore_enter_notify_forall(conn, ws, false);
+    return false;
 }
 
 /*
- * Unmaps all clients (and stack windows) of the given workspace.
- *
- * This needs to be called separately when temporarily rendering
- * a workspace which is not the active workspace to force
- * reconfiguration of all clients, like in src/xinerama.c when
- * re-assigning a workspace to another screen.
+ * Goes through all clients on the given workspace and updates the workspace’s
+ * urgent flag accordingly.
  *
  */
-void workspace_unmap_clients(xcb_connection_t *conn, Workspace *u_ws) {
-        Client *client;
-        struct Stack_Window *stack_win;
-
-        /* Ignore notify events because they would cause focus to be changed */
-        ignore_enter_notify_forall(conn, u_ws, true);
-
-        /* Unmap all clients of the given workspace */
-        int unmapped_clients = 0;
-        FOR_TABLE(u_ws)
-                CIRCLEQ_FOREACH(client, &(u_ws->table[cols][rows]->clients), clients) {
-                        LOG("unmapping normal client %p / %p / %p\n", client, client->frame, client->child);
-                        client_unmap(conn, client);
-                        unmapped_clients++;
-                }
-
-        /* To find floating clients, we traverse the focus stack */
-        SLIST_FOREACH(client, &(u_ws->focus_stack), focus_clients) {
-                if (!client_is_floating(client))
-                        continue;
-
-                LOG("unmapping floating client %p / %p / %p\n", client, client->frame, client->child);
-
-                client_unmap(conn, client);
-                unmapped_clients++;
-        }
-
-        /* If we did not unmap any clients, the workspace is empty and we can destroy it, at least
-         * if it is not the current workspace. */
-        if (unmapped_clients == 0 && u_ws != c_ws) {
-                /* Re-assign the workspace of all dock clients which use this workspace */
-                Client *dock;
-                LOG("workspace %p is empty\n", u_ws);
-                SLIST_FOREACH(dock, &(u_ws->screen->dock_clients), dock_clients) {
-                        if (dock->workspace != u_ws)
-                                continue;
-
-                        LOG("Re-assigning dock client to c_ws (%p)\n", c_ws);
-                        dock->workspace = c_ws;
-                }
-                u_ws->screen = NULL;
-        }
-
-        /* Unmap the stack windows on the given workspace, if any */
-        SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
-                if (stack_win->container->workspace == u_ws)
-                        xcb_unmap_window(conn, stack_win->window);
+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);
 
-        ignore_enter_notify_forall(conn, u_ws, false);
+    if (old_flag != ws->urgent)
+        ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"urgent\"}");
 }
 
 /*
- * Goes through all clients on the given workspace and updates the workspace’s
- * urgent flag accordingly.
+ * '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 workspace_update_urgent_flag(Workspace *ws) {
-        Client *current;
+void ws_force_orientation(Con *ws, orientation_t orientation) {
+    /* 1: create a new split container */
+    Con *split = con_new(NULL);
+    split->parent = ws;
 
-        SLIST_FOREACH(current, &(ws->focus_stack), focus_clients) {
-                if (!current->urgent)
-                        continue;
+    /* 2: copy layout and orientation from workspace */
+    split->layout = ws->layout;
+    split->orientation = ws->orientation;
 
-                ws->urgent = true;
-                return;
-        }
+    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);
 
-        ws->urgent = false;
+    if (old_focused)
+        con_focus(old_focused);
 }