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 bool enter_child = false;
195 /* Get container by frame or by child window */
196 if ((con = con_by_frame_id(event->event)) == NULL) {
197 con = con_by_window_id(event->event);
201 /* If not, then the user moved his cursor to the root window. In that case, we adjust c_ws */
203 DLOG("Getting screen at %d x %d\n", event->root_x, event->root_y);
204 //check_crossing_screen_boundary(event->root_x, event->root_y);
208 /* see if the user entered the window on a certain window decoration */
209 int layout = (enter_child ? con->parent->layout : con->layout);
211 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
212 if (rect_contains(child->deco_rect, event->event_x, event->event_y)) {
213 LOG("using child %p / %s instead!\n", child, child->name);
218 /* for stacked/tabbed layout we do not want to change focus when the user
219 * enters the window at the decoration of any child window. */
220 if (layout == L_STACKED || layout == L_TABBED) {
221 con = TAILQ_FIRST(&(con->parent->focus_head));
222 LOG("using focused %p / %s instead\n", con, con->name);
226 if (client->workspace != c_ws && client->workspace->output == c_ws->output) {
227 /* This can happen when a client gets assigned to a different workspace than
228 * the current one (see src/mainx.c:reparent_window). Shortly after it was created,
229 * an enter_notify will follow. */
230 DLOG("enter_notify for a client on a different workspace but the same screen, ignoring\n");
235 if (config.disable_focus_follows_mouse)
238 while (!TAILQ_EMPTY(&(next->focus_head)))
239 next = TAILQ_FIRST(&(next->focus_head));
242 x_push_changes(croot);
249 * When the user moves the mouse but does not change the active window
250 * (e.g. when having no windows opened but moving mouse on the root screen
251 * and crossing virtual screen boundaries), this callback gets called.
254 int handle_motion_notify(void *ignored, xcb_connection_t *conn, xcb_motion_notify_event_t *event) {
255 /* Skip events where the pointer was over a child window, we are only
256 * interested in events on the root window. */
257 if (event->child != 0)
260 check_crossing_screen_boundary(event->root_x, event->root_y);
266 * Called when the keyboard mapping changes (for example by using Xmodmap),
267 * we need to update our key bindings then (re-translate symbols).
270 int handle_mapping_notify(void *ignored, xcb_connection_t *conn, xcb_mapping_notify_event_t *event) {
271 if (event->request != XCB_MAPPING_KEYBOARD &&
272 event->request != XCB_MAPPING_MODIFIER)
275 DLOG("Received mapping_notify for keyboard or modifier mapping, re-grabbing keys\n");
276 xcb_refresh_keyboard_mapping(keysyms, event);
278 xcb_get_numlock_mask(conn);
280 ungrab_all_keys(conn);
282 grab_all_keys(conn, false);
289 * A new window appeared on the screen (=was mapped), so let’s manage it.
292 int handle_map_request(void *prophs, xcb_connection_t *conn, xcb_map_request_event_t *event) {
293 xcb_get_window_attributes_cookie_t cookie;
295 cookie = xcb_get_window_attributes_unchecked(conn, event->window);
297 DLOG("window = 0x%08x, serial is %d.\n", event->window, event->sequence);
298 add_ignore_event(event->sequence);
300 manage_window(event->window, cookie, false);
301 x_push_changes(croot);
306 * Configure requests are received when the application wants to resize windows on their own.
308 * We generate a synthethic configure notify event to signalize the client its "new" position.
311 int handle_configure_request(void *prophs, xcb_connection_t *conn, xcb_configure_request_event_t *event) {
314 DLOG("window 0x%08x wants to be at %dx%d with %dx%d\n",
315 event->window, event->x, event->y, event->width, event->height);
317 /* For unmanaged windows, we just execute the configure request. As soon as
318 * it gets mapped, we will take over anyways. */
319 if ((con = con_by_window_id(event->window)) == NULL) {
320 DLOG("Configure request for unmanaged window, can do that.\n");
325 #define COPY_MASK_MEMBER(mask_member, event_member) do { \
326 if (event->value_mask & mask_member) { \
327 mask |= mask_member; \
328 values[c++] = event->event_member; \
332 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_X, x);
333 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_Y, y);
334 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_WIDTH, width);
335 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_HEIGHT, height);
336 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_BORDER_WIDTH, border_width);
337 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_SIBLING, sibling);
338 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_STACK_MODE, stack_mode);
340 xcb_configure_window(conn, event->window, mask, values);
346 DLOG("Configure request!\n");
347 if (con_is_floating(con) && con_is_leaf(con)) {
348 /* find the height for the decorations */
349 i3Font *font = load_font(conn, config.font);
350 int deco_height = font->height + 5;
351 /* we actually need to apply the size/position changes to the *parent*
353 Rect bsr = con_border_style_rect(con);
354 if (con->border_style == BS_NORMAL)
355 bsr.height -= deco_height;
357 DLOG("Container is a floating leaf node, will do that.\n");
358 if (event->value_mask & XCB_CONFIG_WINDOW_X) {
359 con->rect.x = event->x + (-1) * bsr.x;
360 DLOG("proposed x = %d, new x is %d\n", event->x, con->rect.x);
362 if (event->value_mask & XCB_CONFIG_WINDOW_Y) {
363 con->rect.y = event->y + (-1) * bsr.y;
364 DLOG("proposed y = %d, new y is %d\n", event->y, con->rect.y);
366 if (event->value_mask & XCB_CONFIG_WINDOW_WIDTH) {
367 con->rect.width = event->width + (-1) * bsr.width;
368 DLOG("proposed width = %d, new width is %d\n", event->width, con->rect.width);
370 if (event->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
371 con->rect.height = event->height + (-1) * bsr.height;
372 DLOG("proposed height = %d, new height is %d\n", event->height, con->rect.height);
379 /* Dock clients can be reconfigured in their height */
381 DLOG("Reconfiguring height of this dock client\n");
383 if (!(event->value_mask & XCB_CONFIG_WINDOW_HEIGHT)) {
384 DLOG("Ignoring configure request, no height given\n");
388 client->desired_height = event->height;
389 render_workspace(conn, c_ws->output, c_ws);
395 if (client->fullscreen) {
396 DLOG("Client is in fullscreen mode\n");
398 Rect child_rect = client->container->workspace->rect;
399 child_rect.x = child_rect.y = 0;
400 fake_configure_notify(conn, child_rect, client->child);
405 fake_absolute_configure_notify(conn, client);
413 * Configuration notifies are only handled because we need to set up ignore for
414 * the following enter notify events.
417 int handle_configure_event(void *prophs, xcb_connection_t *conn, xcb_configure_notify_event_t *event) {
418 DLOG("configure_event, sequence %d\n", event->sequence);
419 /* We ignore this sequence twice because events for child and frame should be ignored */
420 add_ignore_event(event->sequence);
421 add_ignore_event(event->sequence);
427 * Gets triggered upon a RandR screen change event, that is when the user
428 * changes the screen configuration in any way (mode, position, …)
431 int handle_screen_change(void *prophs, xcb_connection_t *conn,
432 xcb_generic_event_t *e) {
433 DLOG("RandR screen change\n");
435 randr_query_outputs(conn);
437 ipc_send_event("output", I3_IPC_EVENT_OUTPUT, "{\"change\":\"unspecified\"}");
444 * Our window decorations were unmapped. That means, the window will be killed
445 * now, so we better clean up before.
448 int handle_unmap_notify_event(void *data, xcb_connection_t *conn, xcb_unmap_notify_event_t *event) {
450 /* FIXME: we cannot ignore this sequence because more UnmapNotifys with the same sequence
451 * numbers but different window IDs may follow */
452 /* we need to ignore EnterNotify events which will be generated because a
453 * different window is visible now */
454 //add_ignore_event(event->sequence);
456 DLOG("UnmapNotify for 0x%08x (received from 0x%08x), serial %d\n", event->window, event->event, event->sequence);
457 Con *con = con_by_window_id(event->window);
459 /* This could also be an UnmapNotify for the frame. We need to
460 * decrement the ignore_unmap counter. */
461 con = con_by_frame_id(event->window);
463 LOG("Not a managed window, ignoring UnmapNotify event\n");
466 if (con->ignore_unmap > 0)
468 DLOG("ignore_unmap = %d for frame of container %p\n", con->ignore_unmap, con);
472 if (con->ignore_unmap > 0) {
473 DLOG("ignore_unmap = %d, dec\n", con->ignore_unmap);
478 tree_close(con, false, false);
480 x_push_changes(croot);
484 if (client == NULL) {
485 DLOG("not a managed window. Ignoring.\n");
487 /* This was most likely the destroyed frame of a client which is
488 * currently being unmapped, so we add this sequence (again!) to
489 * the ignore list (enter_notify events will get sent for both,
490 * the child and its frame). */
491 add_ignore_event(event->sequence);
499 /* Let’s see how many clients there are left on the workspace to delete it if it’s empty */
500 bool workspace_empty = SLIST_EMPTY(&(client->workspace->focus_stack));
501 bool workspace_focused = (c_ws == client->workspace);
502 Client *to_focus = (!workspace_empty ? SLIST_FIRST(&(client->workspace->focus_stack)) : NULL);
504 /* If this workspace is currently visible, we don’t delete it */
505 if (workspace_is_visible(client->workspace))
506 workspace_empty = false;
508 if (workspace_empty) {
509 client->workspace->output = NULL;
510 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"empty\"}");
513 /* Remove the urgency flag if set */
514 client->urgent = false;
515 workspace_update_urgent_flag(client->workspace);
524 * A destroy notify event is sent when the window is not unmapped, but
525 * immediately destroyed (for example when starting a window and immediately
526 * killing the program which started it).
528 * We just pass on the event to the unmap notify handler (by copying the
529 * important fields in the event data structure).
532 int handle_destroy_notify_event(void *data, xcb_connection_t *conn, xcb_destroy_notify_event_t *event) {
533 DLOG("destroy notify for 0x%08x, 0x%08x\n", event->event, event->window);
535 xcb_unmap_notify_event_t unmap;
536 unmap.sequence = event->sequence;
537 unmap.event = event->event;
538 unmap.window = event->window;
540 return handle_unmap_notify_event(NULL, conn, &unmap);
544 * Called when a window changes its title
547 int handle_windowname_change(void *data, xcb_connection_t *conn, uint8_t state,
548 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
550 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
553 window_update_name(con->window, prop);
555 x_push_changes(croot);
561 * Handles legacy window name updates (WM_NAME), see also src/window.c,
562 * window_update_name_legacy().
565 int handle_windowname_change_legacy(void *data, xcb_connection_t *conn, uint8_t state,
566 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
568 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
571 window_update_name_legacy(con->window, prop);
573 x_push_changes(croot);
579 * Updates the client’s WM_CLASS property
582 int handle_windowclass_change(void *data, xcb_connection_t *conn, uint8_t state,
583 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
585 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
588 window_update_class(con->window, prop);
594 * Expose event means we should redraw our windows (= title bar)
597 int handle_expose_event(void *data, xcb_connection_t *conn, xcb_expose_event_t *event) {
600 /* event->count is the number of minimum remaining expose events for this
601 * window, so we skip all events but the last one */
602 if (event->count != 0)
605 DLOG("window = %08x\n", event->window);
607 if ((parent = con_by_frame_id(event->window)) == NULL) {
608 LOG("expose event for unknown window, ignoring\n");
613 x_draw_decoration(parent);
615 TAILQ_FOREACH(con, &(parent->nodes_head), nodes) {
616 LOG("expose for con %p / %s\n", con, con->name);
618 x_draw_decoration(con);
626 uint32_t background_color;
628 background_color = config.client.urgent.background;
629 /* Distinguish if the window is currently focused… */
630 else if (CUR_CELL != NULL && CUR_CELL->currently_focused == client)
631 background_color = config.client.focused.background;
632 /* …or if it is the focused window in a not focused container */
633 else background_color = config.client.focused_inactive.background;
635 /* Set foreground color to current focused color, line width to 2 */
636 uint32_t values[] = {background_color, 2};
637 xcb_change_gc(conn, client->titlegc, XCB_GC_FOREGROUND | XCB_GC_LINE_WIDTH, values);
639 /* Draw the border, the ±1 is for line width = 2 */
640 xcb_point_t points[] = {{1, 0}, /* left upper edge */
641 {1, client->rect.height-1}, /* left bottom edge */
642 {client->rect.width-1, client->rect.height-1}, /* right bottom edge */
643 {client->rect.width-1, 0}}; /* right upper edge */
644 xcb_poly_line(conn, XCB_COORD_MODE_ORIGIN, client->frame, client->titlegc, 4, points);
646 /* Draw a black background */
647 xcb_change_gc_single(conn, client->titlegc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
648 if (client->titlebar_position == TITLEBAR_OFF && !client->borderless) {
649 xcb_rectangle_t crect = {1, 0, client->rect.width - (1 + 1), client->rect.height - 1};
650 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
652 xcb_rectangle_t crect = {2, 0, client->rect.width - (2 + 2), client->rect.height - 2};
653 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
662 * Handle client messages (EWMH)
665 int handle_client_message(void *data, xcb_connection_t *conn, xcb_client_message_event_t *event) {
666 LOG("ClientMessage for window 0x%08x\n", event->window);
667 if (event->type == atoms[_NET_WM_STATE]) {
668 if (event->format != 32 || event->data.data32[1] != atoms[_NET_WM_STATE_FULLSCREEN]) {
669 DLOG("atom in clientmessage is %d, fullscreen is %d\n",
670 event->data.data32[1], atoms[_NET_WM_STATE_FULLSCREEN]);
671 DLOG("not about fullscreen atom\n");
675 Con *con = con_by_window_id(event->window);
677 DLOG("Could not get window for client message\n");
681 /* Check if the fullscreen state should be toggled */
682 if ((con->fullscreen_mode != CF_NONE &&
683 (event->data.data32[0] == _NET_WM_STATE_REMOVE ||
684 event->data.data32[0] == _NET_WM_STATE_TOGGLE)) ||
685 (con->fullscreen_mode == CF_NONE &&
686 (event->data.data32[0] == _NET_WM_STATE_ADD ||
687 event->data.data32[0] == _NET_WM_STATE_TOGGLE))) {
688 DLOG("toggling fullscreen\n");
689 con_toggle_fullscreen(con);
693 x_push_changes(croot);
695 ELOG("unhandled clientmessage\n");
703 int handle_window_type(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
704 xcb_atom_t atom, xcb_get_property_reply_t *property) {
705 /* TODO: Implement this one. To do this, implement a little test program which sleep(1)s
706 before changing this property. */
707 ELOG("_NET_WM_WINDOW_TYPE changed, this is not yet implemented.\n");
713 * Handles the size hints set by a window, but currently only the part necessary for displaying
714 * clients proportionally inside their frames (mplayer for example)
716 * See ICCCM 4.1.2.3 for more details
719 int handle_normal_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
720 xcb_atom_t name, xcb_get_property_reply_t *reply) {
721 Con *con = con_by_window_id(window);
723 DLOG("Received WM_NORMAL_HINTS for unknown client\n");
727 xcb_size_hints_t size_hints;
729 //CLIENT_LOG(client);
731 /* If the hints were already in this event, use them, if not, request them */
733 xcb_get_wm_size_hints_from_reply(&size_hints, reply);
735 xcb_get_wm_normal_hints_reply(conn, xcb_get_wm_normal_hints_unchecked(conn, con->window->id), &size_hints, NULL);
737 if ((size_hints.flags & XCB_SIZE_HINT_P_MIN_SIZE)) {
738 // TODO: Minimum size is not yet implemented
739 DLOG("Minimum size: %d (width) x %d (height)\n", size_hints.min_width, size_hints.min_height);
742 bool changed = false;
743 if ((size_hints.flags & XCB_SIZE_HINT_P_RESIZE_INC)) {
744 if (size_hints.width_inc > 0 && size_hints.width_inc < 0xFFFF)
745 if (con->width_increment != size_hints.width_inc) {
746 con->width_increment = size_hints.width_inc;
749 if (size_hints.height_inc > 0 && size_hints.height_inc < 0xFFFF)
750 if (con->height_increment != size_hints.height_inc) {
751 con->height_increment = size_hints.height_inc;
756 DLOG("resize increments changed\n");
759 int base_width = 0, base_height = 0;
761 /* base_width/height are the desired size of the window.
762 We check if either the program-specified size or the program-specified
763 min-size is available */
764 if (size_hints.flags & XCB_SIZE_HINT_BASE_SIZE) {
765 base_width = size_hints.base_width;
766 base_height = size_hints.base_height;
767 } else if (size_hints.flags & XCB_SIZE_HINT_P_MIN_SIZE) {
768 /* TODO: is this right? icccm says not */
769 base_width = size_hints.min_width;
770 base_height = size_hints.min_height;
773 if (base_width != con->base_width ||
774 base_height != con->base_height) {
775 con->base_width = base_width;
776 con->base_height = base_height;
777 DLOG("client's base_height changed to %d\n", base_height);
778 DLOG("client's base_width changed to %d\n", base_width);
782 /* If no aspect ratio was set or if it was invalid, we ignore the hints */
783 if (!(size_hints.flags & XCB_SIZE_HINT_P_ASPECT) ||
784 (size_hints.min_aspect_num <= 0) ||
785 (size_hints.min_aspect_den <= 0)) {
786 goto render_and_return;
789 /* XXX: do we really use rect here, not window_rect? */
790 double width = con->rect.width - base_width;
791 double height = con->rect.height - base_height;
792 /* Convert numerator/denominator to a double */
793 double min_aspect = (double)size_hints.min_aspect_num / size_hints.min_aspect_den;
794 double max_aspect = (double)size_hints.max_aspect_num / size_hints.min_aspect_den;
796 DLOG("Aspect ratio set: minimum %f, maximum %f\n", min_aspect, max_aspect);
797 DLOG("width = %f, height = %f\n", width, height);
799 /* Sanity checks, this is user-input, in a way */
800 if (max_aspect <= 0 || min_aspect <= 0 || height == 0 || (width / height) <= 0)
801 goto render_and_return;
803 /* Check if we need to set proportional_* variables using the correct ratio */
804 if ((width / height) < min_aspect) {
805 con->proportional_width = width;
806 con->proportional_height = width / min_aspect;
807 } else if ((width / height) > max_aspect) {
808 con->proportional_width = width;
809 con->proportional_height = width / max_aspect;
810 } else goto render_and_return;
818 * Handles the WM_HINTS property for extracting the urgency state of the window.
821 int handle_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
822 xcb_atom_t name, xcb_get_property_reply_t *reply) {
823 Con *con = con_by_window_id(window);
825 DLOG("Received WM_HINTS for unknown client\n");
829 xcb_wm_hints_t hints;
832 if (!xcb_get_wm_hints_from_reply(&hints, reply))
835 if (!xcb_get_wm_hints_reply(conn, xcb_get_wm_hints_unchecked(conn, con->window->id), &hints, NULL))
839 if (!con->urgent && focused == con) {
840 DLOG("Ignoring urgency flag for current client\n");
844 /* Update the flag on the client directly */
845 con->urgent = (xcb_wm_hints_get_urgency(&hints) != 0);
847 LOG("Urgency flag changed to %d\n", con->urgent);
849 workspace_update_urgent_flag(con_get_workspace(con));
852 /* If the workspace this client is on is not visible, we need to redraw
853 * the workspace bar */
854 if (!workspace_is_visible(client->workspace)) {
855 Output *output = client->workspace->output;
856 render_workspace(conn, output, output->current_workspace);
865 * Handles the transient for hints set by a window, signalizing that this window is a popup window
866 * for some other window.
868 * See ICCCM 4.1.2.6 for more details
871 int handle_transient_for(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
872 xcb_atom_t name, xcb_get_property_reply_t *prop) {
875 if ((con = con_by_window_id(window)) == NULL || con->window == NULL) {
876 DLOG("No such window\n");
881 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
882 false, window, WM_TRANSIENT_FOR, WINDOW, 0, 32), NULL);
887 window_update_transient_for(con->window, prop);
889 // TODO: put window in floating mode if con->window->transient_for != XCB_NONE:
891 if (client->floating == FLOATING_AUTO_OFF) {
892 DLOG("This is a popup window, putting into floating\n");
893 toggle_floating_mode(conn, client, true);
901 * Handles changes of the WM_CLIENT_LEADER atom which specifies if this is a
902 * toolwindow (or similar) and to which window it belongs (logical parent).
905 int handle_clientleader_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
906 xcb_atom_t name, xcb_get_property_reply_t *prop) {
908 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
912 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
913 false, window, WM_CLIENT_LEADER, WINDOW, 0, 32), NULL);
918 window_update_leader(con->window, prop);