2 #define I3__FILE__ "manage.c"
4 * vim:ts=4:sw=4:expandtab
6 * i3 - an improved dynamic tiling window manager
7 * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
9 * manage.c: Initially managing new windows (or existing ones on restart).
15 * Go through all existing windows (if the window manager is restarted) and manage them
18 void manage_existing_windows(xcb_window_t root) {
19 xcb_query_tree_reply_t *reply;
21 xcb_window_t *children;
22 xcb_get_window_attributes_cookie_t *cookies;
24 /* Get the tree of windows whose parent is the root window (= all) */
25 if ((reply = xcb_query_tree_reply(conn, xcb_query_tree(conn, root), 0)) == NULL)
28 len = xcb_query_tree_children_length(reply);
29 cookies = smalloc(len * sizeof(*cookies));
31 /* Request the window attributes for every window */
32 children = xcb_query_tree_children(reply);
33 for (i = 0; i < len; ++i)
34 cookies[i] = xcb_get_window_attributes(conn, children[i]);
36 /* Call manage_window with the attributes for every window */
37 for (i = 0; i < len; ++i)
38 manage_window(children[i], cookies[i], true);
45 * Restores the geometry of each window by reparenting it to the root window
46 * at the position of its frame.
48 * This is to be called *only* before exiting/restarting i3 because of evil
49 * side-effects which are to be expected when continuing to run i3.
52 void restore_geometry(void) {
53 DLOG("Restoring geometry\n");
56 TAILQ_FOREACH(con, &all_cons, all_cons)
58 DLOG("Re-adding X11 border of %d px\n", con->border_width);
59 con->window_rect.width += (2 * con->border_width);
60 con->window_rect.height += (2 * con->border_width);
61 xcb_set_window_rect(conn, con->window->id, con->window_rect);
62 DLOG("placing window %08x at %d %d\n", con->window->id, con->rect.x, con->rect.y);
63 xcb_reparent_window(conn, con->window->id, root,
64 con->rect.x, con->rect.y);
67 /* Make sure our changes reach the X server, we restart/exit now */
72 * Do some sanity checks and then reparent the window.
75 void manage_window(xcb_window_t window, xcb_get_window_attributes_cookie_t cookie,
76 bool needs_to_be_mapped) {
77 xcb_drawable_t d = { window };
78 xcb_get_geometry_cookie_t geomc;
79 xcb_get_geometry_reply_t *geom;
80 xcb_get_window_attributes_reply_t *attr = NULL;
82 xcb_get_property_cookie_t wm_type_cookie, strut_cookie, state_cookie,
83 utf8_title_cookie, title_cookie,
84 class_cookie, leader_cookie, transient_cookie,
85 role_cookie, startup_id_cookie, wm_hints_cookie;
88 geomc = xcb_get_geometry(conn, d);
89 #define FREE_GEOMETRY() do { \
90 if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) != NULL) \
94 /* Check if the window is mapped (it could be not mapped when intializing and
95 calling manage_window() for every window) */
96 if ((attr = xcb_get_window_attributes_reply(conn, cookie, 0)) == NULL) {
97 DLOG("Could not get attributes\n");
102 if (needs_to_be_mapped && attr->map_state != XCB_MAP_STATE_VIEWABLE) {
107 /* Don’t manage clients with the override_redirect flag */
108 if (attr->override_redirect) {
113 /* Check if the window is already managed */
114 if (con_by_window_id(window) != NULL) {
115 DLOG("already managed (by con %p)\n", con_by_window_id(window));
120 /* Get the initial geometry (position, size, …) */
121 if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) == NULL) {
122 DLOG("could not get geometry\n");
128 /* Set a temporary event mask for the new window, consisting only of
129 * PropertyChange. We need to be notified of PropertyChanges because the
130 * client can change its properties *after* we requested them but *before*
131 * we actually reparented it and have set our final event mask. */
132 values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE;
133 xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values);
135 #define GET_PROPERTY(atom, len) xcb_get_property(conn, false, window, atom, XCB_GET_PROPERTY_TYPE_ANY, 0, len)
137 wm_type_cookie = GET_PROPERTY(A__NET_WM_WINDOW_TYPE, UINT32_MAX);
138 strut_cookie = GET_PROPERTY(A__NET_WM_STRUT_PARTIAL, UINT32_MAX);
139 state_cookie = GET_PROPERTY(A__NET_WM_STATE, UINT32_MAX);
140 utf8_title_cookie = GET_PROPERTY(A__NET_WM_NAME, 128);
141 leader_cookie = GET_PROPERTY(A_WM_CLIENT_LEADER, UINT32_MAX);
142 transient_cookie = GET_PROPERTY(XCB_ATOM_WM_TRANSIENT_FOR, UINT32_MAX);
143 title_cookie = GET_PROPERTY(XCB_ATOM_WM_NAME, 128);
144 class_cookie = GET_PROPERTY(XCB_ATOM_WM_CLASS, 128);
145 role_cookie = GET_PROPERTY(A_WM_WINDOW_ROLE, 128);
146 startup_id_cookie = GET_PROPERTY(A__NET_STARTUP_ID, 512);
147 wm_hints_cookie = xcb_icccm_get_wm_hints(conn, window);
148 /* TODO: also get wm_normal_hints here. implement after we got rid of xcb-event */
150 DLOG("Managing window 0x%08x\n", window);
152 i3Window *cwindow = scalloc(sizeof(i3Window));
153 cwindow->id = window;
154 cwindow->depth = get_visual_depth(attr->visual);
156 /* We need to grab the mouse buttons for click to focus */
157 xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS,
158 XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
159 1 /* left mouse button */,
160 XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);
162 xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS,
163 XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
164 3 /* right mouse button */,
165 XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);
168 /* update as much information as possible so far (some replies may be NULL) */
169 window_update_class(cwindow, xcb_get_property_reply(conn, class_cookie, NULL), true);
170 window_update_name_legacy(cwindow, xcb_get_property_reply(conn, title_cookie, NULL), true);
171 window_update_name(cwindow, xcb_get_property_reply(conn, utf8_title_cookie, NULL), true);
172 window_update_leader(cwindow, xcb_get_property_reply(conn, leader_cookie, NULL));
173 window_update_transient_for(cwindow, xcb_get_property_reply(conn, transient_cookie, NULL));
174 window_update_strut_partial(cwindow, xcb_get_property_reply(conn, strut_cookie, NULL));
175 window_update_role(cwindow, xcb_get_property_reply(conn, role_cookie, NULL), true);
176 window_update_hints(cwindow, xcb_get_property_reply(conn, wm_hints_cookie, NULL));
178 xcb_get_property_reply_t *startup_id_reply;
179 startup_id_reply = xcb_get_property_reply(conn, startup_id_cookie, NULL);
180 char *startup_ws = startup_workspace_for_window(cwindow, startup_id_reply);
181 DLOG("startup workspace = %s\n", startup_ws);
183 /* check if the window needs WM_TAKE_FOCUS */
184 cwindow->needs_take_focus = window_supports_protocol(cwindow->id, A_WM_TAKE_FOCUS);
186 /* Where to start searching for a container that swallows the new one? */
187 Con *search_at = croot;
189 xcb_get_property_reply_t *reply = xcb_get_property_reply(conn, wm_type_cookie, NULL);
190 if (xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_DOCK)) {
191 LOG("This window is of type dock\n");
192 Output *output = get_output_containing(geom->x, geom->y);
193 if (output != NULL) {
194 DLOG("Starting search at output %s\n", output->name);
195 search_at = output->con;
198 /* find out the desired position of this dock window */
199 if (cwindow->reserved.top > 0 && cwindow->reserved.bottom == 0) {
200 DLOG("Top dock client\n");
201 cwindow->dock = W_DOCK_TOP;
202 } else if (cwindow->reserved.top == 0 && cwindow->reserved.bottom > 0) {
203 DLOG("Bottom dock client\n");
204 cwindow->dock = W_DOCK_BOTTOM;
206 DLOG("Ignoring invalid reserved edges (_NET_WM_STRUT_PARTIAL), using position as fallback:\n");
207 if (geom->y < (search_at->rect.height / 2)) {
208 DLOG("geom->y = %d < rect.height / 2 = %d, it is a top dock client\n",
209 geom->y, (search_at->rect.height / 2));
210 cwindow->dock = W_DOCK_TOP;
212 DLOG("geom->y = %d >= rect.height / 2 = %d, it is a bottom dock client\n",
213 geom->y, (search_at->rect.height / 2));
214 cwindow->dock = W_DOCK_BOTTOM;
219 DLOG("Initial geometry: (%d, %d, %d, %d)\n", geom->x, geom->y, geom->width, geom->height);
223 Assignment *assignment;
225 /* TODO: two matches for one container */
227 /* See if any container swallows this new window */
228 nc = con_for_window(search_at, cwindow, &match);
230 /* If not, check if it is assigned to a specific workspace / output */
231 if ((assignment = assignment_for(cwindow, A_TO_WORKSPACE | A_TO_OUTPUT))) {
232 DLOG("Assignment matches (%p)\n", match);
233 if (assignment->type == A_TO_WORKSPACE) {
234 nc = con_descend_tiling_focused(workspace_get(assignment->dest.workspace, NULL));
235 DLOG("focused on ws %s: %p / %s\n", assignment->dest.workspace, nc, nc->name);
236 if (nc->type == CT_WORKSPACE)
237 nc = tree_open_con(nc, cwindow);
238 else nc = tree_open_con(nc->parent, cwindow);
240 /* TODO: handle assignments with type == A_TO_OUTPUT */
241 } else if (startup_ws) {
242 /* If it’s not assigned, but was started on a specific workspace,
243 * we want to open it there */
244 DLOG("Using workspace on which this application was started (%s)\n", startup_ws);
245 nc = con_descend_tiling_focused(workspace_get(startup_ws, NULL));
246 DLOG("focused on ws %s: %p / %s\n", startup_ws, nc, nc->name);
247 if (nc->type == CT_WORKSPACE)
248 nc = tree_open_con(nc, cwindow);
249 else nc = tree_open_con(nc->parent, cwindow);
251 /* If not, insert it at the currently focused position */
252 if (focused->type == CT_CON && con_accepts_window(focused)) {
253 LOG("using current container, focused = %p, focused->name = %s\n",
254 focused, focused->name);
256 } else nc = tree_open_con(NULL, cwindow);
259 /* M_BELOW inserts the new window as a child of the one which was
260 * matched (e.g. dock areas) */
261 if (match != NULL && match->insert_where == M_BELOW) {
262 nc = tree_open_con(nc, cwindow);
266 DLOG("new container = %p\n", nc);
267 nc->window = cwindow;
270 nc->border_width = geom->border_width;
273 sasprintf(&name, "[i3 con] container around %p", cwindow);
274 x_set_name(nc, name);
277 Con *ws = con_get_workspace(nc);
278 Con *fs = (ws ? con_get_fullscreen_con(ws, CF_OUTPUT) : NULL);
280 fs = con_get_fullscreen_con(croot, CF_GLOBAL);
283 DLOG("Not in fullscreen mode, focusing\n");
284 if (!cwindow->dock) {
285 /* Check that the workspace is visible and on the same output as
286 * the current focused container. If the window was assigned to an
287 * invisible workspace, we should not steal focus. */
288 Con *current_output = con_get_output(focused);
289 Con *target_output = con_get_output(ws);
291 if (workspace_is_visible(ws) && current_output == target_output) {
292 if (!match || !match->restart_mode) {
294 } else DLOG("not focusing, matched with restart_mode == true\n");
295 } else DLOG("workspace not visible, not focusing\n");
296 } else DLOG("dock, not focusing\n");
298 DLOG("fs = %p, ws = %p, not focusing\n", fs, ws);
299 /* Insert the new container in focus stack *after* the currently
300 * focused (fullscreen) con. This way, the new container will be
301 * focused after we return from fullscreen mode */
302 Con *first = TAILQ_FIRST(&(nc->parent->focus_head));
304 /* We only modify the focus stack if the container is not already
305 * the first one. This can happen when existing containers swallow
306 * new windows, for example when restarting. */
307 TAILQ_REMOVE(&(nc->parent->focus_head), nc, focused);
308 TAILQ_INSERT_AFTER(&(nc->parent->focus_head), first, nc, focused);
312 /* set floating if necessary */
313 bool want_floating = false;
314 if (xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_DIALOG) ||
315 xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_UTILITY) ||
316 xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_TOOLBAR) ||
317 xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_SPLASH)) {
318 LOG("This window is a dialog window, setting floating\n");
319 want_floating = true;
324 if (cwindow->transient_for != XCB_NONE ||
325 (cwindow->leader != XCB_NONE &&
326 cwindow->leader != cwindow->id &&
327 con_by_window_id(cwindow->leader) != NULL)) {
328 LOG("This window is transient for another window, setting floating\n");
329 want_floating = true;
331 if (config.popup_during_fullscreen == PDF_LEAVE_FULLSCREEN &&
333 LOG("There is a fullscreen window, leaving fullscreen mode\n");
334 con_toggle_fullscreen(fs, CF_OUTPUT);
338 /* dock clients cannot be floating, that makes no sense */
340 want_floating = false;
342 /* Store the requested geometry. The width/height gets raised to at least
343 * 75x50 when entering floating mode, which is the minimum size for a
344 * window to be useful (smaller windows are usually overlays/toolbars/…
345 * which are not managed by the wm anyways). We store the original geometry
346 * here because it’s used for dock clients. */
347 nc->geometry = (Rect){ geom->x, geom->y, geom->width, geom->height };
350 DLOG("geometry = %d x %d\n", nc->geometry.width, nc->geometry.height);
351 floating_enable(nc, true);
354 /* to avoid getting an UnmapNotify event due to reparenting, we temporarily
355 * declare no interest in any state change event of this window */
356 values[0] = XCB_NONE;
357 xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values);
359 xcb_void_cookie_t rcookie = xcb_reparent_window_checked(conn, window, nc->frame, 0, 0);
360 if (xcb_request_check(conn, rcookie) != NULL) {
361 LOG("Could not reparent the window, aborting\n");
365 values[0] = CHILD_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
366 xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values);
369 reply = xcb_get_property_reply(conn, state_cookie, NULL);
370 if (xcb_reply_contains_atom(reply, A__NET_WM_STATE_FULLSCREEN))
371 con_toggle_fullscreen(nc, CF_OUTPUT);
375 /* Put the client inside the save set. Upon termination (whether killed or
376 * normal exit does not matter) of the window manager, these clients will
377 * be correctly reparented to their most closest living ancestor (=
379 xcb_change_save_set(conn, XCB_SET_MODE_INSERT, window);
381 /* Check if any assignments match */
382 run_assignments(cwindow);