2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009-2010 Michael Stapelberg and contributors (see also: LICENSE)
10 #include <xcb/xcb_atom.h>
11 #include <xcb/randr.h>
13 #include <X11/XKBlib.h>
17 /* After mapping/unmapping windows, a notify event is generated. However, we don’t want it,
18 since it’d trigger an infinite loop of switching between the different windows when
19 changing workspaces */
20 static SLIST_HEAD(ignore_head, Ignore_Event) ignore_events;
22 void add_ignore_event(const int sequence) {
23 struct Ignore_Event *event = smalloc(sizeof(struct Ignore_Event));
25 event->sequence = sequence;
26 event->added = time(NULL);
28 SLIST_INSERT_HEAD(&ignore_events, event, ignore_events);
32 * Checks if the given sequence is ignored and returns true if so.
35 static bool event_is_ignored(const int sequence) {
36 struct Ignore_Event *event;
37 time_t now = time(NULL);
38 for (event = SLIST_FIRST(&ignore_events); event != SLIST_END(&ignore_events);) {
39 if ((now - event->added) > 5) {
40 struct Ignore_Event *save = event;
41 event = SLIST_NEXT(event, ignore_events);
42 SLIST_REMOVE(&ignore_events, save, Ignore_Event, ignore_events);
44 } else event = SLIST_NEXT(event, ignore_events);
47 SLIST_FOREACH(event, &ignore_events, ignore_events) {
48 if (event->sequence != sequence)
51 /* instead of removing a sequence number we better wait until it gets
52 * garbage collected. it may generate multiple events (there are multiple
53 * enter_notifies for one configure_request, for example). */
54 //SLIST_REMOVE(&ignore_events, event, Ignore_Event, ignore_events);
63 * There was a key press. We compare this key code with our bindings table and pass
64 * the bound action to parse_command().
67 int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) {
68 DLOG("Keypress %d, state raw = %d\n", event->detail, event->state);
70 /* Remove the numlock bit, all other bits are modifiers we can bind to */
71 uint16_t state_filtered = event->state & ~(xcb_numlock_mask | XCB_MOD_MASK_LOCK);
72 DLOG("(removed numlock, state = %d)\n", state_filtered);
73 /* Only use the lower 8 bits of the state (modifier masks) so that mouse
74 * button masks are filtered out */
75 state_filtered &= 0xFF;
76 DLOG("(removed upper 8 bits, state = %d)\n", state_filtered);
78 if (xkb_current_group == XkbGroup2Index)
79 state_filtered |= BIND_MODE_SWITCH;
81 DLOG("(checked mode_switch, state %d)\n", state_filtered);
83 /* Find the binding */
84 Binding *bind = get_binding(state_filtered, event->detail);
86 /* No match? Then the user has Mode_switch enabled but does not have a
87 * specific keybinding. Fall back to the default keybindings (without
88 * Mode_switch). Makes it much more convenient for users of a hybrid
89 * layout (like us, ru). */
91 state_filtered &= ~(BIND_MODE_SWITCH);
92 DLOG("no match, new state_filtered = %d\n", state_filtered);
93 if ((bind = get_binding(state_filtered, event->detail)) == NULL) {
94 ELOG("Could not lookup key binding (modifiers %d, keycode %d)\n",
95 state_filtered, event->detail);
100 parse_command(bind->command);
107 * Called with coordinates of an enter_notify event or motion_notify event
108 * to check if the user crossed virtual screen boundaries and adjust the
109 * current workspace, if so.
112 static void check_crossing_screen_boundary(uint32_t x, uint32_t y) {
115 if ((output = get_output_containing(x, y)) == NULL) {
116 ELOG("ERROR: No such screen\n");
119 if (output == c_ws->output)
122 c_ws->current_row = current_row;
123 c_ws->current_col = current_col;
124 c_ws = output->current_workspace;
125 current_row = c_ws->current_row;
126 current_col = c_ws->current_col;
127 DLOG("We're now on output %p\n", output);
129 /* While usually this function is only called when the user switches
130 * to a different output using his mouse (and thus the output is
131 * empty), it may be that the following race condition occurs:
132 * 1) the user actives a new output (say VGA1).
133 * 2) the cursor is sent to the first pixel of the new VGA1, thus
134 * generating an enter_notify for the screen (the enter_notify
135 * is not yet received by i3).
136 * 3) i3 requeries screen configuration and maps a workspace onto the
138 * 4) the enter_notify event arrives and c_ws is set to the new
139 * workspace but the existing windows on the new workspace are not
142 * Therefore, we re-set the focus here to be sure it’s correct. */
143 Client *first_client = SLIST_FIRST(&(c_ws->focus_stack));
144 if (first_client != NULL)
145 set_focus(global_conn, first_client, true);
150 * When the user moves the mouse pointer onto a window, this callback gets called.
153 int handle_enter_notify(void *ignored, xcb_connection_t *conn,
154 xcb_enter_notify_event_t *event) {
157 DLOG("enter_notify for %08x, mode = %d, detail %d, serial %d\n",
158 event->event, event->mode, event->detail, event->sequence);
159 DLOG("coordinates %x, %x\n", event->event_x, event->event_y);
160 if (event->mode != XCB_NOTIFY_MODE_NORMAL) {
161 DLOG("This was not a normal notify, ignoring\n");
164 /* Some events are not interesting, because they were not generated
165 * actively by the user, but by reconfiguration of windows */
166 if (event_is_ignored(event->sequence))
169 /* Get container by frame or by child window */
170 if ((con = con_by_frame_id(event->event)) == NULL)
171 con = con_by_window_id(event->event);
173 /* If not, then the user moved his cursor to the root window. In that case, we adjust c_ws */
175 DLOG("Getting screen at %d x %d\n", event->root_x, event->root_y);
176 //check_crossing_screen_boundary(event->root_x, event->root_y);
180 /* see if the user entered the window on a certain window decoration */
181 int layout = con->layout;
183 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
184 if (rect_contains(child->deco_rect, event->event_x, event->event_y)) {
185 LOG("using child %p / %s instead!\n", child, child->name);
190 /* for stacked/tabbed layout we do not want to change focus when the user
191 * enters the window at the decoration of any child window. */
192 if (layout == L_STACKED || layout == L_TABBED) {
193 con = TAILQ_FIRST(&(con->parent->focus_head));
194 LOG("using focused %p / %s instead\n", con, con->name);
198 if (client->workspace != c_ws && client->workspace->output == c_ws->output) {
199 /* This can happen when a client gets assigned to a different workspace than
200 * the current one (see src/mainx.c:reparent_window). Shortly after it was created,
201 * an enter_notify will follow. */
202 DLOG("enter_notify for a client on a different workspace but the same screen, ignoring\n");
207 if (config.disable_focus_follows_mouse)
210 while (!TAILQ_EMPTY(&(next->focus_head)))
211 next = TAILQ_FIRST(&(next->focus_head));
214 x_push_changes(croot);
221 * When the user moves the mouse but does not change the active window
222 * (e.g. when having no windows opened but moving mouse on the root screen
223 * and crossing virtual screen boundaries), this callback gets called.
226 int handle_motion_notify(void *ignored, xcb_connection_t *conn, xcb_motion_notify_event_t *event) {
227 /* Skip events where the pointer was over a child window, we are only
228 * interested in events on the root window. */
229 if (event->child != 0)
232 check_crossing_screen_boundary(event->root_x, event->root_y);
238 * Called when the keyboard mapping changes (for example by using Xmodmap),
239 * we need to update our key bindings then (re-translate symbols).
242 int handle_mapping_notify(void *ignored, xcb_connection_t *conn, xcb_mapping_notify_event_t *event) {
243 if (event->request != XCB_MAPPING_KEYBOARD &&
244 event->request != XCB_MAPPING_MODIFIER)
247 DLOG("Received mapping_notify for keyboard or modifier mapping, re-grabbing keys\n");
248 xcb_refresh_keyboard_mapping(keysyms, event);
250 xcb_get_numlock_mask(conn);
252 ungrab_all_keys(conn);
254 grab_all_keys(conn, false);
261 * A new window appeared on the screen (=was mapped), so let’s manage it.
264 int handle_map_request(void *prophs, xcb_connection_t *conn, xcb_map_request_event_t *event) {
265 xcb_get_window_attributes_cookie_t cookie;
267 cookie = xcb_get_window_attributes_unchecked(conn, event->window);
269 DLOG("window = 0x%08x, serial is %d.\n", event->window, event->sequence);
270 add_ignore_event(event->sequence);
272 manage_window(event->window, cookie, false);
277 * Configure requests are received when the application wants to resize windows on their own.
279 * We generate a synthethic configure notify event to signalize the client its "new" position.
282 int handle_configure_request(void *prophs, xcb_connection_t *conn, xcb_configure_request_event_t *event) {
283 DLOG("window 0x%08x wants to be at %dx%d with %dx%d\n",
284 event->window, event->x, event->y, event->width, event->height);
286 Client *client = table_get(&by_child, event->window);
287 if (client == NULL) {
291 #define COPY_MASK_MEMBER(mask_member, event_member) do { \
292 if (event->value_mask & mask_member) { \
293 mask |= mask_member; \
294 values[c++] = event->event_member; \
298 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_X, x);
299 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_Y, y);
300 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_WIDTH, width);
301 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_HEIGHT, height);
302 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_BORDER_WIDTH, border_width);
303 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_SIBLING, sibling);
304 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_STACK_MODE, stack_mode);
306 xcb_configure_window(conn, event->window, mask, values);
312 if (client->fullscreen) {
313 DLOG("Client is in fullscreen mode\n");
315 Rect child_rect = client->workspace->rect;
316 child_rect.x = child_rect.y = 0;
317 fake_configure_notify(conn, child_rect, client->child);
322 /* Floating clients can be reconfigured */
323 if (client_is_floating(client)) {
324 i3Font *font = load_font(conn, config.font);
325 int mode = (client->container != NULL ? client->container->mode : MODE_DEFAULT);
326 /* TODO: refactor this code. we need a function to translate
327 * coordinates of child_rect/rect. */
329 if (event->value_mask & XCB_CONFIG_WINDOW_X) {
330 if (mode == MODE_STACK || mode == MODE_TABBED) {
331 client->rect.x = event->x - 2;
333 if (client->titlebar_position == TITLEBAR_OFF && client->borderless)
334 client->rect.x = event->x;
335 else if (client->titlebar_position == TITLEBAR_OFF && !client->borderless)
336 client->rect.x = event->x - 1;
337 else client->rect.x = event->x - 2;
340 if (event->value_mask & XCB_CONFIG_WINDOW_Y) {
341 if (mode == MODE_STACK || mode == MODE_TABBED) {
342 client->rect.y = event->y - 2;
344 if (client->titlebar_position == TITLEBAR_OFF && client->borderless)
345 client->rect.y = event->y;
346 else if (client->titlebar_position == TITLEBAR_OFF && !client->borderless)
347 client->rect.y = event->y - 1;
348 else client->rect.y = event->y - font->height - 2 - 2;
351 if (event->value_mask & XCB_CONFIG_WINDOW_WIDTH) {
352 if (mode == MODE_STACK || mode == MODE_TABBED) {
353 client->rect.width = event->width + 2 + 2;
355 if (client->titlebar_position == TITLEBAR_OFF && client->borderless)
356 client->rect.width = event->width;
357 else if (client->titlebar_position == TITLEBAR_OFF && !client->borderless)
358 client->rect.width = event->width + (1 + 1);
359 else client->rect.width = event->width + (2 + 2);
362 if (event->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
363 if (mode == MODE_STACK || mode == MODE_TABBED) {
364 client->rect.height = event->height + 2;
366 if (client->titlebar_position == TITLEBAR_OFF && client->borderless)
367 client->rect.height = event->height;
368 else if (client->titlebar_position == TITLEBAR_OFF && !client->borderless)
369 client->rect.height = event->height + (1 + 1);
370 else client->rect.height = event->height + (font->height + 2 + 2) + 2;
374 DLOG("Accepted new position/size for floating client: (%d, %d) size %d x %d\n",
375 client->rect.x, client->rect.y, client->rect.width, client->rect.height);
377 /* Push the new position/size to X11 */
378 reposition_client(conn, client);
379 resize_client(conn, client);
385 /* Dock clients can be reconfigured in their height */
387 DLOG("Reconfiguring height of this dock client\n");
389 if (!(event->value_mask & XCB_CONFIG_WINDOW_HEIGHT)) {
390 DLOG("Ignoring configure request, no height given\n");
394 client->desired_height = event->height;
395 render_workspace(conn, c_ws->output, c_ws);
401 if (client->fullscreen) {
402 DLOG("Client is in fullscreen mode\n");
404 Rect child_rect = client->container->workspace->rect;
405 child_rect.x = child_rect.y = 0;
406 fake_configure_notify(conn, child_rect, client->child);
411 fake_absolute_configure_notify(conn, client);
417 * Configuration notifies are only handled because we need to set up ignore for
418 * the following enter notify events.
421 int handle_configure_event(void *prophs, xcb_connection_t *conn, xcb_configure_notify_event_t *event) {
422 /* We ignore this sequence twice because events for child and frame should be ignored */
423 add_ignore_event(event->sequence);
424 add_ignore_event(event->sequence);
430 * Gets triggered upon a RandR screen change event, that is when the user
431 * changes the screen configuration in any way (mode, position, …)
434 int handle_screen_change(void *prophs, xcb_connection_t *conn,
435 xcb_generic_event_t *e) {
436 DLOG("RandR screen change\n");
438 randr_query_outputs(conn);
440 ipc_send_event("output", I3_IPC_EVENT_OUTPUT, "{\"change\":\"unspecified\"}");
447 * Our window decorations were unmapped. That means, the window will be killed
448 * now, so we better clean up before.
451 int handle_unmap_notify_event(void *data, xcb_connection_t *conn, xcb_unmap_notify_event_t *event) {
453 /* we need to ignore EnterNotify events which will be generated because a
454 * different window is visible now */
455 add_ignore_event(event->sequence);
457 DLOG("UnmapNotify for 0x%08x (received from 0x%08x), serial %d\n", event->window, event->event, event->sequence);
458 Con *con = con_by_window_id(event->window);
460 LOG("Not a managed window, ignoring\n");
466 x_push_changes(croot);
470 if (client == NULL) {
471 DLOG("not a managed window. Ignoring.\n");
473 /* This was most likely the destroyed frame of a client which is
474 * currently being unmapped, so we add this sequence (again!) to
475 * the ignore list (enter_notify events will get sent for both,
476 * the child and its frame). */
477 add_ignore_event(event->sequence);
485 /* Let’s see how many clients there are left on the workspace to delete it if it’s empty */
486 bool workspace_empty = SLIST_EMPTY(&(client->workspace->focus_stack));
487 bool workspace_focused = (c_ws == client->workspace);
488 Client *to_focus = (!workspace_empty ? SLIST_FIRST(&(client->workspace->focus_stack)) : NULL);
490 /* If this workspace is currently visible, we don’t delete it */
491 if (workspace_is_visible(client->workspace))
492 workspace_empty = false;
494 if (workspace_empty) {
495 client->workspace->output = NULL;
496 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"empty\"}");
499 /* Remove the urgency flag if set */
500 client->urgent = false;
501 workspace_update_urgent_flag(client->workspace);
511 * A destroy notify event is sent when the window is not unmapped, but
512 * immediately destroyed (for example when starting a window and immediately
513 * killing the program which started it).
515 * We just pass on the event to the unmap notify handler (by copying the
516 * important fields in the event data structure).
519 int handle_destroy_notify_event(void *data, xcb_connection_t *conn, xcb_destroy_notify_event_t *event) {
520 DLOG("destroy notify for 0x%08x, 0x%08x\n", event->event, event->window);
522 xcb_unmap_notify_event_t unmap;
523 unmap.sequence = event->sequence;
524 unmap.event = event->event;
525 unmap.window = event->window;
527 return handle_unmap_notify_event(NULL, conn, &unmap);
531 * Called when a window changes its title
534 int handle_windowname_change(void *data, xcb_connection_t *conn, uint8_t state,
535 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
537 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
540 window_update_name(con->window, prop);
542 x_push_changes(croot);
548 * Handles legacy window name updates (WM_NAME), see also src/window.c,
549 * window_update_name_legacy().
552 int handle_windowname_change_legacy(void *data, xcb_connection_t *conn, uint8_t state,
553 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
555 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
558 window_update_name_legacy(con->window, prop);
560 x_push_changes(croot);
566 * Updates the client’s WM_CLASS property
569 int handle_windowclass_change(void *data, xcb_connection_t *conn, uint8_t state,
570 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
572 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
575 window_update_class(con->window, prop);
581 * Expose event means we should redraw our windows (= title bar)
584 int handle_expose_event(void *data, xcb_connection_t *conn, xcb_expose_event_t *event) {
587 /* event->count is the number of minimum remaining expose events for this
588 * window, so we skip all events but the last one */
589 if (event->count != 0)
592 DLOG("window = %08x\n", event->window);
594 if ((parent = con_by_frame_id(event->window)) == NULL) {
595 LOG("expose event for unknown window, ignoring\n");
599 TAILQ_FOREACH(con, &(parent->nodes_head), nodes) {
600 LOG("expose for con %p / %s\n", con, con->name);
602 x_draw_decoration(con);
610 uint32_t background_color;
612 background_color = config.client.urgent.background;
613 /* Distinguish if the window is currently focused… */
614 else if (CUR_CELL != NULL && CUR_CELL->currently_focused == client)
615 background_color = config.client.focused.background;
616 /* …or if it is the focused window in a not focused container */
617 else background_color = config.client.focused_inactive.background;
619 /* Set foreground color to current focused color, line width to 2 */
620 uint32_t values[] = {background_color, 2};
621 xcb_change_gc(conn, client->titlegc, XCB_GC_FOREGROUND | XCB_GC_LINE_WIDTH, values);
623 /* Draw the border, the ±1 is for line width = 2 */
624 xcb_point_t points[] = {{1, 0}, /* left upper edge */
625 {1, client->rect.height-1}, /* left bottom edge */
626 {client->rect.width-1, client->rect.height-1}, /* right bottom edge */
627 {client->rect.width-1, 0}}; /* right upper edge */
628 xcb_poly_line(conn, XCB_COORD_MODE_ORIGIN, client->frame, client->titlegc, 4, points);
630 /* Draw a black background */
631 xcb_change_gc_single(conn, client->titlegc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
632 if (client->titlebar_position == TITLEBAR_OFF && !client->borderless) {
633 xcb_rectangle_t crect = {1, 0, client->rect.width - (1 + 1), client->rect.height - 1};
634 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
636 xcb_rectangle_t crect = {2, 0, client->rect.width - (2 + 2), client->rect.height - 2};
637 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
647 * Handle client messages (EWMH)
650 int handle_client_message(void *data, xcb_connection_t *conn, xcb_client_message_event_t *event) {
651 if (event->type == atoms[_NET_WM_STATE]) {
652 if (event->format != 32 || event->data.data32[1] != atoms[_NET_WM_STATE_FULLSCREEN])
655 Client *client = table_get(&by_child, event->window);
659 /* Check if the fullscreen state should be toggled */
660 if ((client->fullscreen &&
661 (event->data.data32[0] == _NET_WM_STATE_REMOVE ||
662 event->data.data32[0] == _NET_WM_STATE_TOGGLE)) ||
663 (!client->fullscreen &&
664 (event->data.data32[0] == _NET_WM_STATE_ADD ||
665 event->data.data32[0] == _NET_WM_STATE_TOGGLE)))
666 client_toggle_fullscreen(conn, client);
668 ELOG("unhandled clientmessage\n");
675 int handle_window_type(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
676 xcb_atom_t atom, xcb_get_property_reply_t *property) {
677 /* TODO: Implement this one. To do this, implement a little test program which sleep(1)s
678 before changing this property. */
679 ELOG("_NET_WM_WINDOW_TYPE changed, this is not yet implemented.\n");
684 * Handles the size hints set by a window, but currently only the part necessary for displaying
685 * clients proportionally inside their frames (mplayer for example)
687 * See ICCCM 4.1.2.3 for more details
690 int handle_normal_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
691 xcb_atom_t name, xcb_get_property_reply_t *reply) {
692 Client *client = table_get(&by_child, window);
693 if (client == NULL) {
694 DLOG("Received WM_SIZE_HINTS for unknown client\n");
697 xcb_size_hints_t size_hints;
701 /* If the hints were already in this event, use them, if not, request them */
703 xcb_get_wm_size_hints_from_reply(&size_hints, reply);
705 xcb_get_wm_normal_hints_reply(conn, xcb_get_wm_normal_hints_unchecked(conn, client->child), &size_hints, NULL);
707 if ((size_hints.flags & XCB_SIZE_HINT_P_MIN_SIZE)) {
708 // TODO: Minimum size is not yet implemented
709 DLOG("Minimum size: %d (width) x %d (height)\n", size_hints.min_width, size_hints.min_height);
712 bool changed = false;
713 if ((size_hints.flags & XCB_SIZE_HINT_P_RESIZE_INC)) {
714 if (size_hints.width_inc > 0 && size_hints.width_inc < 0xFFFF)
715 if (client->width_increment != size_hints.width_inc) {
716 client->width_increment = size_hints.width_inc;
719 if (size_hints.height_inc > 0 && size_hints.height_inc < 0xFFFF)
720 if (client->height_increment != size_hints.height_inc) {
721 client->height_increment = size_hints.height_inc;
726 DLOG("resize increments changed\n");
729 int base_width = 0, base_height = 0;
731 /* base_width/height are the desired size of the window.
732 We check if either the program-specified size or the program-specified
733 min-size is available */
734 if (size_hints.flags & XCB_SIZE_HINT_BASE_SIZE) {
735 base_width = size_hints.base_width;
736 base_height = size_hints.base_height;
737 } else if (size_hints.flags & XCB_SIZE_HINT_P_MIN_SIZE) {
738 /* TODO: is this right? icccm says not */
739 base_width = size_hints.min_width;
740 base_height = size_hints.min_height;
743 if (base_width != client->base_width ||
744 base_height != client->base_height) {
745 client->base_width = base_width;
746 client->base_height = base_height;
747 DLOG("client's base_height changed to %d\n", base_height);
748 DLOG("client's base_width changed to %d\n", base_width);
753 if (client->fullscreen)
754 DLOG("Not resizing client, it is in fullscreen mode\n");
756 resize_client(conn, client);
761 /* If no aspect ratio was set or if it was invalid, we ignore the hints */
762 if (!(size_hints.flags & XCB_SIZE_HINT_P_ASPECT) ||
763 (size_hints.min_aspect_num <= 0) ||
764 (size_hints.min_aspect_den <= 0)) {
768 double width = client->rect.width - base_width;
769 double height = client->rect.height - base_height;
770 /* Convert numerator/denominator to a double */
771 double min_aspect = (double)size_hints.min_aspect_num / size_hints.min_aspect_den;
772 double max_aspect = (double)size_hints.max_aspect_num / size_hints.min_aspect_den;
774 DLOG("Aspect ratio set: minimum %f, maximum %f\n", min_aspect, max_aspect);
775 DLOG("width = %f, height = %f\n", width, height);
777 /* Sanity checks, this is user-input, in a way */
778 if (max_aspect <= 0 || min_aspect <= 0 || height == 0 || (width / height) <= 0)
781 /* Check if we need to set proportional_* variables using the correct ratio */
782 if ((width / height) < min_aspect) {
783 client->proportional_width = width;
784 client->proportional_height = width / min_aspect;
785 } else if ((width / height) > max_aspect) {
786 client->proportional_width = width;
787 client->proportional_height = width / max_aspect;
790 client->force_reconfigure = true;
792 if (client->container != NULL) {
793 render_container(conn, client->container);
801 * Handles the WM_HINTS property for extracting the urgency state of the window.
804 int handle_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
805 xcb_atom_t name, xcb_get_property_reply_t *reply) {
806 Client *client = table_get(&by_child, window);
807 if (client == NULL) {
808 DLOG("Received WM_HINTS for unknown client\n");
811 xcb_wm_hints_t hints;
814 if (!xcb_get_wm_hints_from_reply(&hints, reply))
817 if (!xcb_get_wm_hints_reply(conn, xcb_get_wm_hints_unchecked(conn, client->child), &hints, NULL))
821 Client *last_focused = SLIST_FIRST(&(c_ws->focus_stack));
822 if (!client->urgent && client == last_focused) {
823 DLOG("Ignoring urgency flag for current client\n");
827 /* Update the flag on the client directly */
828 client->urgent = (xcb_wm_hints_get_urgency(&hints) != 0);
830 LOG("Urgency flag changed to %d\n", client->urgent);
832 workspace_update_urgent_flag(client->workspace);
833 redecorate_window(conn, client);
835 /* If the workspace this client is on is not visible, we need to redraw
836 * the workspace bar */
837 if (!workspace_is_visible(client->workspace)) {
838 Output *output = client->workspace->output;
839 render_workspace(conn, output, output->current_workspace);
847 * Handles the transient for hints set by a window, signalizing that this window is a popup window
848 * for some other window.
850 * See ICCCM 4.1.2.6 for more details
853 int handle_transient_for(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
854 xcb_atom_t name, xcb_get_property_reply_t *reply) {
855 Client *client = table_get(&by_child, window);
856 if (client == NULL) {
857 DLOG("No such client\n");
861 xcb_window_t transient_for;
864 if (!xcb_get_wm_transient_for_from_reply(&transient_for, reply))
867 if (!xcb_get_wm_transient_for_reply(conn, xcb_get_wm_transient_for_unchecked(conn, window),
868 &transient_for, NULL))
872 if (client->floating == FLOATING_AUTO_OFF) {
873 DLOG("This is a popup window, putting into floating\n");
874 toggle_floating_mode(conn, client, true);
881 * Handles changes of the WM_CLIENT_LEADER atom which specifies if this is a
882 * toolwindow (or similar) and to which window it belongs (logical parent).
885 int handle_clientleader_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
886 xcb_atom_t name, xcb_get_property_reply_t *prop) {
888 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
889 false, window, WM_CLIENT_LEADER, WINDOW, 0, 32), NULL);
894 Client *client = table_get(&by_child, window);
898 xcb_window_t *leader = xcb_get_property_value(prop);
902 DLOG("Client leader changed to %08x\n", *leader);
904 client->leader = *leader;