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 * Unignores the given sequence. Called when unmap events (generated by
33 * reparenting) should be ignored and the unmap event actually happens, in
34 * order to not ignore too many unmap events (leading to ghost window
38 static void unignore_event(const int sequence) {
39 struct Ignore_Event *event;
40 for (event = SLIST_FIRST(&ignore_events);
41 event != SLIST_END(&ignore_events);
42 event = SLIST_NEXT(event, ignore_events)) {
43 if (event->sequence != sequence)
46 DLOG("Unignoring sequence number %d\n", sequence);
47 struct Ignore_Event *save = event;
48 event = SLIST_NEXT(event, ignore_events);
49 SLIST_REMOVE(&ignore_events, save, Ignore_Event, ignore_events);
56 * Checks if the given sequence is ignored and returns true if so.
59 static bool event_is_ignored(const int sequence) {
60 struct Ignore_Event *event;
61 time_t now = time(NULL);
62 for (event = SLIST_FIRST(&ignore_events); event != SLIST_END(&ignore_events);) {
63 if ((now - event->added) > 5) {
64 struct Ignore_Event *save = event;
65 event = SLIST_NEXT(event, ignore_events);
66 SLIST_REMOVE(&ignore_events, save, Ignore_Event, ignore_events);
68 } else event = SLIST_NEXT(event, ignore_events);
71 SLIST_FOREACH(event, &ignore_events, ignore_events) {
72 if (event->sequence != sequence)
75 /* instead of removing a sequence number we better wait until it gets
76 * garbage collected. it may generate multiple events (there are multiple
77 * enter_notifies for one configure_request, for example). */
78 //SLIST_REMOVE(&ignore_events, event, Ignore_Event, ignore_events);
87 * There was a key press. We compare this key code with our bindings table and pass
88 * the bound action to parse_command().
91 int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) {
92 DLOG("Keypress %d, state raw = %d\n", event->detail, event->state);
94 /* Remove the numlock bit, all other bits are modifiers we can bind to */
95 uint16_t state_filtered = event->state & ~(xcb_numlock_mask | XCB_MOD_MASK_LOCK);
96 DLOG("(removed numlock, state = %d)\n", state_filtered);
97 /* Only use the lower 8 bits of the state (modifier masks) so that mouse
98 * button masks are filtered out */
99 state_filtered &= 0xFF;
100 DLOG("(removed upper 8 bits, state = %d)\n", state_filtered);
102 if (xkb_current_group == XkbGroup2Index)
103 state_filtered |= BIND_MODE_SWITCH;
105 DLOG("(checked mode_switch, state %d)\n", state_filtered);
107 /* Find the binding */
108 Binding *bind = get_binding(state_filtered, event->detail);
110 /* No match? Then the user has Mode_switch enabled but does not have a
111 * specific keybinding. Fall back to the default keybindings (without
112 * Mode_switch). Makes it much more convenient for users of a hybrid
113 * layout (like us, ru). */
115 state_filtered &= ~(BIND_MODE_SWITCH);
116 DLOG("no match, new state_filtered = %d\n", state_filtered);
117 if ((bind = get_binding(state_filtered, event->detail)) == NULL) {
118 ELOG("Could not lookup key binding (modifiers %d, keycode %d)\n",
119 state_filtered, event->detail);
124 parse_cmd(bind->command);
132 * Called with coordinates of an enter_notify event or motion_notify event
133 * to check if the user crossed virtual screen boundaries and adjust the
134 * current workspace, if so.
137 static void check_crossing_screen_boundary(uint32_t x, uint32_t y) {
140 if ((output = get_output_containing(x, y)) == NULL) {
141 ELOG("ERROR: No such screen\n");
144 if (output == c_ws->output)
147 c_ws->current_row = current_row;
148 c_ws->current_col = current_col;
149 c_ws = output->current_workspace;
150 current_row = c_ws->current_row;
151 current_col = c_ws->current_col;
152 DLOG("We're now on output %p\n", output);
154 /* While usually this function is only called when the user switches
155 * to a different output using his mouse (and thus the output is
156 * empty), it may be that the following race condition occurs:
157 * 1) the user actives a new output (say VGA1).
158 * 2) the cursor is sent to the first pixel of the new VGA1, thus
159 * generating an enter_notify for the screen (the enter_notify
160 * is not yet received by i3).
161 * 3) i3 requeries screen configuration and maps a workspace onto the
163 * 4) the enter_notify event arrives and c_ws is set to the new
164 * workspace but the existing windows on the new workspace are not
167 * Therefore, we re-set the focus here to be sure it’s correct. */
168 Client *first_client = SLIST_FIRST(&(c_ws->focus_stack));
169 if (first_client != NULL)
170 set_focus(global_conn, first_client, true);
175 * When the user moves the mouse pointer onto a window, this callback gets called.
178 int handle_enter_notify(void *ignored, xcb_connection_t *conn,
179 xcb_enter_notify_event_t *event) {
182 DLOG("enter_notify for %08x, mode = %d, detail %d, serial %d\n",
183 event->event, event->mode, event->detail, event->sequence);
184 DLOG("coordinates %d, %d\n", event->event_x, event->event_y);
185 if (event->mode != XCB_NOTIFY_MODE_NORMAL) {
186 DLOG("This was not a normal notify, ignoring\n");
189 /* Some events are not interesting, because they were not generated
190 * actively by the user, but by reconfiguration of windows */
191 if (event_is_ignored(event->sequence))
194 /* Get container by frame or by child window */
195 if ((con = con_by_frame_id(event->event)) == NULL)
196 con = con_by_window_id(event->event);
198 /* If not, then the user moved his cursor to the root window. In that case, we adjust c_ws */
200 DLOG("Getting screen at %d x %d\n", event->root_x, event->root_y);
201 //check_crossing_screen_boundary(event->root_x, event->root_y);
205 /* see if the user entered the window on a certain window decoration */
206 int layout = con->layout;
208 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
209 if (rect_contains(child->deco_rect, event->event_x, event->event_y)) {
210 LOG("using child %p / %s instead!\n", child, child->name);
215 /* for stacked/tabbed layout we do not want to change focus when the user
216 * enters the window at the decoration of any child window. */
217 if (layout == L_STACKED || layout == L_TABBED) {
218 con = TAILQ_FIRST(&(con->parent->focus_head));
219 LOG("using focused %p / %s instead\n", con, con->name);
223 if (client->workspace != c_ws && client->workspace->output == c_ws->output) {
224 /* This can happen when a client gets assigned to a different workspace than
225 * the current one (see src/mainx.c:reparent_window). Shortly after it was created,
226 * an enter_notify will follow. */
227 DLOG("enter_notify for a client on a different workspace but the same screen, ignoring\n");
232 if (config.disable_focus_follows_mouse)
235 while (!TAILQ_EMPTY(&(next->focus_head)))
236 next = TAILQ_FIRST(&(next->focus_head));
239 x_push_changes(croot);
246 * When the user moves the mouse but does not change the active window
247 * (e.g. when having no windows opened but moving mouse on the root screen
248 * and crossing virtual screen boundaries), this callback gets called.
251 int handle_motion_notify(void *ignored, xcb_connection_t *conn, xcb_motion_notify_event_t *event) {
252 /* Skip events where the pointer was over a child window, we are only
253 * interested in events on the root window. */
254 if (event->child != 0)
257 check_crossing_screen_boundary(event->root_x, event->root_y);
263 * Called when the keyboard mapping changes (for example by using Xmodmap),
264 * we need to update our key bindings then (re-translate symbols).
267 int handle_mapping_notify(void *ignored, xcb_connection_t *conn, xcb_mapping_notify_event_t *event) {
268 if (event->request != XCB_MAPPING_KEYBOARD &&
269 event->request != XCB_MAPPING_MODIFIER)
272 DLOG("Received mapping_notify for keyboard or modifier mapping, re-grabbing keys\n");
273 xcb_refresh_keyboard_mapping(keysyms, event);
275 xcb_get_numlock_mask(conn);
277 ungrab_all_keys(conn);
279 grab_all_keys(conn, false);
286 * A new window appeared on the screen (=was mapped), so let’s manage it.
289 int handle_map_request(void *prophs, xcb_connection_t *conn, xcb_map_request_event_t *event) {
290 xcb_get_window_attributes_cookie_t cookie;
292 cookie = xcb_get_window_attributes_unchecked(conn, event->window);
294 DLOG("window = 0x%08x, serial is %d.\n", event->window, event->sequence);
295 add_ignore_event(event->sequence);
297 manage_window(event->window, cookie, false);
298 x_push_changes(croot);
303 * Configure requests are received when the application wants to resize windows on their own.
305 * We generate a synthethic configure notify event to signalize the client its "new" position.
308 int handle_configure_request(void *prophs, xcb_connection_t *conn, xcb_configure_request_event_t *event) {
311 DLOG("window 0x%08x wants to be at %dx%d with %dx%d\n",
312 event->window, event->x, event->y, event->width, event->height);
314 /* For unmanaged windows, we just execute the configure request. As soon as
315 * it gets mapped, we will take over anyways. */
316 if ((con = con_by_window_id(event->window)) == NULL) {
317 DLOG("Configure request for unmanaged window, can do that.\n");
322 #define COPY_MASK_MEMBER(mask_member, event_member) do { \
323 if (event->value_mask & mask_member) { \
324 mask |= mask_member; \
325 values[c++] = event->event_member; \
329 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_X, x);
330 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_Y, y);
331 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_WIDTH, width);
332 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_HEIGHT, height);
333 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_BORDER_WIDTH, border_width);
334 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_SIBLING, sibling);
335 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_STACK_MODE, stack_mode);
337 xcb_configure_window(conn, event->window, mask, values);
343 DLOG("Configure request!\n");
344 if (con_is_floating(con) && con_is_leaf(con)) {
345 /* find the height for the decorations */
346 i3Font *font = load_font(conn, config.font);
347 int deco_height = font->height + 5;
348 /* we actually need to apply the size/position changes to the *parent*
350 Rect bsr = con_border_style_rect(con);
351 if (con->border_style == BS_NORMAL)
352 bsr.height -= deco_height;
354 DLOG("Container is a floating leaf node, will do that.\n");
355 if (event->value_mask & XCB_CONFIG_WINDOW_X) {
356 con->rect.x = event->x + (-1) * bsr.x;
357 DLOG("proposed x = %d, new x is %d\n", event->x, con->rect.x);
359 if (event->value_mask & XCB_CONFIG_WINDOW_Y) {
360 con->rect.y = event->y + (-1) * bsr.y;
361 DLOG("proposed y = %d, new y is %d\n", event->y, con->rect.y);
363 if (event->value_mask & XCB_CONFIG_WINDOW_WIDTH) {
364 con->rect.width = event->width + (-1) * bsr.width;
365 DLOG("proposed width = %d, new width is %d\n", event->width, con->rect.width);
367 if (event->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
368 con->rect.height = event->height + (-1) * bsr.height;
369 DLOG("proposed height = %d, new height is %d\n", event->height, con->rect.height);
376 /* Dock clients can be reconfigured in their height */
378 DLOG("Reconfiguring height of this dock client\n");
380 if (!(event->value_mask & XCB_CONFIG_WINDOW_HEIGHT)) {
381 DLOG("Ignoring configure request, no height given\n");
385 client->desired_height = event->height;
386 render_workspace(conn, c_ws->output, c_ws);
392 if (client->fullscreen) {
393 DLOG("Client is in fullscreen mode\n");
395 Rect child_rect = client->container->workspace->rect;
396 child_rect.x = child_rect.y = 0;
397 fake_configure_notify(conn, child_rect, client->child);
402 fake_absolute_configure_notify(conn, client);
410 * Configuration notifies are only handled because we need to set up ignore for
411 * the following enter notify events.
414 int handle_configure_event(void *prophs, xcb_connection_t *conn, xcb_configure_notify_event_t *event) {
415 DLOG("configure_event, sequence %d\n", event->sequence);
416 /* We ignore this sequence twice because events for child and frame should be ignored */
417 add_ignore_event(event->sequence);
418 add_ignore_event(event->sequence);
424 * Gets triggered upon a RandR screen change event, that is when the user
425 * changes the screen configuration in any way (mode, position, …)
428 int handle_screen_change(void *prophs, xcb_connection_t *conn,
429 xcb_generic_event_t *e) {
430 DLOG("RandR screen change\n");
432 randr_query_outputs(conn);
434 ipc_send_event("output", I3_IPC_EVENT_OUTPUT, "{\"change\":\"unspecified\"}");
441 * Our window decorations were unmapped. That means, the window will be killed
442 * now, so we better clean up before.
445 int handle_unmap_notify_event(void *data, xcb_connection_t *conn, xcb_unmap_notify_event_t *event) {
447 /* FIXME: we cannot ignore this sequence because more UnmapNotifys with the same sequence
448 * numbers but different window IDs may follow */
449 /* we need to ignore EnterNotify events which will be generated because a
450 * different window is visible now */
451 //add_ignore_event(event->sequence);
453 DLOG("UnmapNotify for 0x%08x (received from 0x%08x), serial %d\n", event->window, event->event, event->sequence);
454 Con *con = con_by_window_id(event->window);
456 /* This could also be an UnmapNotify for the frame. We need to
457 * decrement the ignore_unmap counter. */
458 con = con_by_frame_id(event->window);
460 LOG("Not a managed window, ignoring UnmapNotify event\n");
463 if (con->ignore_unmap > 0)
465 DLOG("ignore_unmap = %d for frame of container %p\n", con->ignore_unmap, con);
469 if (con->ignore_unmap > 0) {
470 DLOG("ignore_unmap = %d, dec\n", con->ignore_unmap);
475 tree_close(con, false, false);
477 x_push_changes(croot);
481 if (client == NULL) {
482 DLOG("not a managed window. Ignoring.\n");
484 /* This was most likely the destroyed frame of a client which is
485 * currently being unmapped, so we add this sequence (again!) to
486 * the ignore list (enter_notify events will get sent for both,
487 * the child and its frame). */
488 add_ignore_event(event->sequence);
496 /* Let’s see how many clients there are left on the workspace to delete it if it’s empty */
497 bool workspace_empty = SLIST_EMPTY(&(client->workspace->focus_stack));
498 bool workspace_focused = (c_ws == client->workspace);
499 Client *to_focus = (!workspace_empty ? SLIST_FIRST(&(client->workspace->focus_stack)) : NULL);
501 /* If this workspace is currently visible, we don’t delete it */
502 if (workspace_is_visible(client->workspace))
503 workspace_empty = false;
505 if (workspace_empty) {
506 client->workspace->output = NULL;
507 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"empty\"}");
510 /* Remove the urgency flag if set */
511 client->urgent = false;
512 workspace_update_urgent_flag(client->workspace);
521 * A destroy notify event is sent when the window is not unmapped, but
522 * immediately destroyed (for example when starting a window and immediately
523 * killing the program which started it).
525 * We just pass on the event to the unmap notify handler (by copying the
526 * important fields in the event data structure).
529 int handle_destroy_notify_event(void *data, xcb_connection_t *conn, xcb_destroy_notify_event_t *event) {
530 DLOG("destroy notify for 0x%08x, 0x%08x\n", event->event, event->window);
532 xcb_unmap_notify_event_t unmap;
533 unmap.sequence = event->sequence;
534 unmap.event = event->event;
535 unmap.window = event->window;
537 return handle_unmap_notify_event(NULL, conn, &unmap);
541 * Called when a window changes its title
544 int handle_windowname_change(void *data, xcb_connection_t *conn, uint8_t state,
545 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
547 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
550 window_update_name(con->window, prop);
552 x_push_changes(croot);
558 * Handles legacy window name updates (WM_NAME), see also src/window.c,
559 * window_update_name_legacy().
562 int handle_windowname_change_legacy(void *data, xcb_connection_t *conn, uint8_t state,
563 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
565 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
568 window_update_name_legacy(con->window, prop);
570 x_push_changes(croot);
576 * Updates the client’s WM_CLASS property
579 int handle_windowclass_change(void *data, xcb_connection_t *conn, uint8_t state,
580 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
582 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
585 window_update_class(con->window, prop);
591 * Expose event means we should redraw our windows (= title bar)
594 int handle_expose_event(void *data, xcb_connection_t *conn, xcb_expose_event_t *event) {
597 /* event->count is the number of minimum remaining expose events for this
598 * window, so we skip all events but the last one */
599 if (event->count != 0)
602 DLOG("window = %08x\n", event->window);
604 if ((parent = con_by_frame_id(event->window)) == NULL) {
605 LOG("expose event for unknown window, ignoring\n");
609 TAILQ_FOREACH(con, &(parent->nodes_head), nodes) {
610 LOG("expose for con %p / %s\n", con, con->name);
612 x_draw_decoration(con);
620 uint32_t background_color;
622 background_color = config.client.urgent.background;
623 /* Distinguish if the window is currently focused… */
624 else if (CUR_CELL != NULL && CUR_CELL->currently_focused == client)
625 background_color = config.client.focused.background;
626 /* …or if it is the focused window in a not focused container */
627 else background_color = config.client.focused_inactive.background;
629 /* Set foreground color to current focused color, line width to 2 */
630 uint32_t values[] = {background_color, 2};
631 xcb_change_gc(conn, client->titlegc, XCB_GC_FOREGROUND | XCB_GC_LINE_WIDTH, values);
633 /* Draw the border, the ±1 is for line width = 2 */
634 xcb_point_t points[] = {{1, 0}, /* left upper edge */
635 {1, client->rect.height-1}, /* left bottom edge */
636 {client->rect.width-1, client->rect.height-1}, /* right bottom edge */
637 {client->rect.width-1, 0}}; /* right upper edge */
638 xcb_poly_line(conn, XCB_COORD_MODE_ORIGIN, client->frame, client->titlegc, 4, points);
640 /* Draw a black background */
641 xcb_change_gc_single(conn, client->titlegc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
642 if (client->titlebar_position == TITLEBAR_OFF && !client->borderless) {
643 xcb_rectangle_t crect = {1, 0, client->rect.width - (1 + 1), client->rect.height - 1};
644 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
646 xcb_rectangle_t crect = {2, 0, client->rect.width - (2 + 2), client->rect.height - 2};
647 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
656 * Handle client messages (EWMH)
659 int handle_client_message(void *data, xcb_connection_t *conn, xcb_client_message_event_t *event) {
660 LOG("ClientMessage for window 0x%08x\n", event->window);
661 if (event->type == atoms[_NET_WM_STATE]) {
662 if (event->format != 32 || event->data.data32[1] != atoms[_NET_WM_STATE_FULLSCREEN])
665 Con *con = con_by_window_id(event->window);
669 /* Check if the fullscreen state should be toggled */
670 if ((con->fullscreen_mode != CF_NONE &&
671 (event->data.data32[0] == _NET_WM_STATE_REMOVE ||
672 event->data.data32[0] == _NET_WM_STATE_TOGGLE)) ||
673 (con->fullscreen_mode == CF_NONE &&
674 (event->data.data32[0] == _NET_WM_STATE_ADD ||
675 event->data.data32[0] == _NET_WM_STATE_TOGGLE)))
676 con_toggle_fullscreen(con);
679 x_push_changes(croot);
681 ELOG("unhandled clientmessage\n");
689 int handle_window_type(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
690 xcb_atom_t atom, xcb_get_property_reply_t *property) {
691 /* TODO: Implement this one. To do this, implement a little test program which sleep(1)s
692 before changing this property. */
693 ELOG("_NET_WM_WINDOW_TYPE changed, this is not yet implemented.\n");
699 * Handles the size hints set by a window, but currently only the part necessary for displaying
700 * clients proportionally inside their frames (mplayer for example)
702 * See ICCCM 4.1.2.3 for more details
705 int handle_normal_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
706 xcb_atom_t name, xcb_get_property_reply_t *reply) {
707 Con *con = con_by_window_id(window);
709 DLOG("Received WM_NORMAL_HINTS for unknown client\n");
713 xcb_size_hints_t size_hints;
715 //CLIENT_LOG(client);
717 /* If the hints were already in this event, use them, if not, request them */
719 xcb_get_wm_size_hints_from_reply(&size_hints, reply);
721 xcb_get_wm_normal_hints_reply(conn, xcb_get_wm_normal_hints_unchecked(conn, con->window->id), &size_hints, NULL);
723 if ((size_hints.flags & XCB_SIZE_HINT_P_MIN_SIZE)) {
724 // TODO: Minimum size is not yet implemented
725 DLOG("Minimum size: %d (width) x %d (height)\n", size_hints.min_width, size_hints.min_height);
728 bool changed = false;
729 if ((size_hints.flags & XCB_SIZE_HINT_P_RESIZE_INC)) {
730 if (size_hints.width_inc > 0 && size_hints.width_inc < 0xFFFF)
731 if (con->width_increment != size_hints.width_inc) {
732 con->width_increment = size_hints.width_inc;
735 if (size_hints.height_inc > 0 && size_hints.height_inc < 0xFFFF)
736 if (con->height_increment != size_hints.height_inc) {
737 con->height_increment = size_hints.height_inc;
742 DLOG("resize increments changed\n");
745 int base_width = 0, base_height = 0;
747 /* base_width/height are the desired size of the window.
748 We check if either the program-specified size or the program-specified
749 min-size is available */
750 if (size_hints.flags & XCB_SIZE_HINT_BASE_SIZE) {
751 base_width = size_hints.base_width;
752 base_height = size_hints.base_height;
753 } else if (size_hints.flags & XCB_SIZE_HINT_P_MIN_SIZE) {
754 /* TODO: is this right? icccm says not */
755 base_width = size_hints.min_width;
756 base_height = size_hints.min_height;
759 if (base_width != con->base_width ||
760 base_height != con->base_height) {
761 con->base_width = base_width;
762 con->base_height = base_height;
763 DLOG("client's base_height changed to %d\n", base_height);
764 DLOG("client's base_width changed to %d\n", base_width);
768 /* If no aspect ratio was set or if it was invalid, we ignore the hints */
769 if (!(size_hints.flags & XCB_SIZE_HINT_P_ASPECT) ||
770 (size_hints.min_aspect_num <= 0) ||
771 (size_hints.min_aspect_den <= 0)) {
772 goto render_and_return;
775 /* XXX: do we really use rect here, not window_rect? */
776 double width = con->rect.width - base_width;
777 double height = con->rect.height - base_height;
778 /* Convert numerator/denominator to a double */
779 double min_aspect = (double)size_hints.min_aspect_num / size_hints.min_aspect_den;
780 double max_aspect = (double)size_hints.max_aspect_num / size_hints.min_aspect_den;
782 DLOG("Aspect ratio set: minimum %f, maximum %f\n", min_aspect, max_aspect);
783 DLOG("width = %f, height = %f\n", width, height);
785 /* Sanity checks, this is user-input, in a way */
786 if (max_aspect <= 0 || min_aspect <= 0 || height == 0 || (width / height) <= 0)
787 goto render_and_return;
789 /* Check if we need to set proportional_* variables using the correct ratio */
790 if ((width / height) < min_aspect) {
791 con->proportional_width = width;
792 con->proportional_height = width / min_aspect;
793 } else if ((width / height) > max_aspect) {
794 con->proportional_width = width;
795 con->proportional_height = width / max_aspect;
796 } else goto render_and_return;
804 * Handles the WM_HINTS property for extracting the urgency state of the window.
807 int handle_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
808 xcb_atom_t name, xcb_get_property_reply_t *reply) {
809 Con *con = con_by_window_id(window);
811 DLOG("Received WM_HINTS for unknown client\n");
815 xcb_wm_hints_t hints;
818 if (!xcb_get_wm_hints_from_reply(&hints, reply))
821 if (!xcb_get_wm_hints_reply(conn, xcb_get_wm_hints_unchecked(conn, con->window->id), &hints, NULL))
825 if (!con->urgent && focused == con) {
826 DLOG("Ignoring urgency flag for current client\n");
830 /* Update the flag on the client directly */
831 con->urgent = (xcb_wm_hints_get_urgency(&hints) != 0);
833 LOG("Urgency flag changed to %d\n", con->urgent);
835 workspace_update_urgent_flag(con_get_workspace(con));
838 /* If the workspace this client is on is not visible, we need to redraw
839 * the workspace bar */
840 if (!workspace_is_visible(client->workspace)) {
841 Output *output = client->workspace->output;
842 render_workspace(conn, output, output->current_workspace);
851 * Handles the transient for hints set by a window, signalizing that this window is a popup window
852 * for some other window.
854 * See ICCCM 4.1.2.6 for more details
857 int handle_transient_for(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
858 xcb_atom_t name, xcb_get_property_reply_t *prop) {
861 if ((con = con_by_window_id(window)) == NULL || con->window == NULL) {
862 DLOG("No such window\n");
867 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
868 false, window, WM_TRANSIENT_FOR, WINDOW, 0, 32), NULL);
873 window_update_transient_for(con->window, prop);
875 // TODO: put window in floating mode if con->window->transient_for != XCB_NONE:
877 if (client->floating == FLOATING_AUTO_OFF) {
878 DLOG("This is a popup window, putting into floating\n");
879 toggle_floating_mode(conn, client, true);
887 * Handles changes of the WM_CLIENT_LEADER atom which specifies if this is a
888 * toolwindow (or similar) and to which window it belongs (logical parent).
891 int handle_clientleader_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
892 xcb_atom_t name, xcb_get_property_reply_t *prop) {
894 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
898 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
899 false, window, WM_CLIENT_LEADER, WINDOW, 0, 32), NULL);
904 window_update_leader(con->window, prop);