2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
7 * handlers.c: Small handlers for various events (keypresses, focus changes,
15 #include <xcb/randr.h>
16 #include <X11/XKBlib.h>
17 #define SN_API_NOT_YET_FROZEN 1
18 #include <libsn/sn-monitor.h>
22 /* After mapping/unmapping windows, a notify event is generated. However, we don’t want it,
23 since it’d trigger an infinite loop of switching between the different windows when
24 changing workspaces */
25 static SLIST_HEAD(ignore_head, Ignore_Event) ignore_events;
28 * Adds the given sequence to the list of events which are ignored.
29 * If this ignore should only affect a specific response_type, pass
30 * response_type, otherwise, pass -1.
32 * Every ignored sequence number gets garbage collected after 5 seconds.
35 void add_ignore_event(const int sequence, const int response_type) {
36 struct Ignore_Event *event = smalloc(sizeof(struct Ignore_Event));
38 event->sequence = sequence;
39 event->response_type = response_type;
40 event->added = time(NULL);
42 SLIST_INSERT_HEAD(&ignore_events, event, ignore_events);
46 * Checks if the given sequence is ignored and returns true if so.
49 bool event_is_ignored(const int sequence, const int response_type) {
50 struct Ignore_Event *event;
51 time_t now = time(NULL);
52 for (event = SLIST_FIRST(&ignore_events); event != SLIST_END(&ignore_events);) {
53 if ((now - event->added) > 5) {
54 struct Ignore_Event *save = event;
55 event = SLIST_NEXT(event, ignore_events);
56 SLIST_REMOVE(&ignore_events, save, Ignore_Event, ignore_events);
58 } else event = SLIST_NEXT(event, ignore_events);
61 SLIST_FOREACH(event, &ignore_events, ignore_events) {
62 if (event->sequence != sequence)
65 if (event->response_type != -1 &&
66 event->response_type != response_type)
69 /* instead of removing a sequence number we better wait until it gets
70 * garbage collected. it may generate multiple events (there are multiple
71 * enter_notifies for one configure_request, for example). */
72 //SLIST_REMOVE(&ignore_events, event, Ignore_Event, ignore_events);
81 * Called with coordinates of an enter_notify event or motion_notify event
82 * to check if the user crossed virtual screen boundaries and adjust the
83 * current workspace, if so.
86 static void check_crossing_screen_boundary(uint32_t x, uint32_t y) {
89 /* If the user disable focus follows mouse, we have nothing to do here */
90 if (config.disable_focus_follows_mouse)
93 if ((output = get_output_containing(x, y)) == NULL) {
94 ELOG("ERROR: No such screen\n");
98 if (output->con == NULL) {
99 ELOG("ERROR: The screen is not recognized by i3 (no container associated)\n");
103 /* Focus the output on which the user moved his cursor */
104 Con *old_focused = focused;
105 Con *next = con_descend_focused(output_get_content(output->con));
106 /* Since we are switching outputs, this *must* be a different workspace, so
107 * call workspace_show() */
108 workspace_show(con_get_workspace(next));
111 /* If the focus changed, we re-render to get updated decorations */
112 if (old_focused != focused)
117 * When the user moves the mouse pointer onto a window, this callback gets called.
120 static void handle_enter_notify(xcb_enter_notify_event_t *event) {
123 last_timestamp = event->time;
125 DLOG("enter_notify for %08x, mode = %d, detail %d, serial %d\n",
126 event->event, event->mode, event->detail, event->sequence);
127 DLOG("coordinates %d, %d\n", event->event_x, event->event_y);
128 if (event->mode != XCB_NOTIFY_MODE_NORMAL) {
129 DLOG("This was not a normal notify, ignoring\n");
132 /* Some events are not interesting, because they were not generated
133 * actively by the user, but by reconfiguration of windows */
134 if (event_is_ignored(event->sequence, XCB_ENTER_NOTIFY)) {
135 DLOG("Event ignored\n");
139 bool enter_child = false;
140 /* Get container by frame or by child window */
141 if ((con = con_by_frame_id(event->event)) == NULL) {
142 con = con_by_window_id(event->event);
146 /* If not, then the user moved his cursor to the root window. In that case, we adjust c_ws */
148 DLOG("Getting screen at %d x %d\n", event->root_x, event->root_y);
149 check_crossing_screen_boundary(event->root_x, event->root_y);
153 if (con->parent->type == CT_DOCKAREA) {
154 DLOG("Ignoring, this is a dock client\n");
158 /* see if the user entered the window on a certain window decoration */
159 int layout = (enter_child ? con->parent->layout : con->layout);
160 if (layout == L_DEFAULT) {
162 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
163 if (rect_contains(child->deco_rect, event->event_x, event->event_y)) {
164 LOG("using child %p / %s instead!\n", child, child->name);
171 if (client->workspace != c_ws && client->workspace->output == c_ws->output) {
172 /* This can happen when a client gets assigned to a different workspace than
173 * the current one (see src/mainx.c:reparent_window). Shortly after it was created,
174 * an enter_notify will follow. */
175 DLOG("enter_notify for a client on a different workspace but the same screen, ignoring\n");
180 if (config.disable_focus_follows_mouse)
183 /* Get the currently focused workspace to check if the focus change also
184 * involves changing workspaces. If so, we need to call workspace_show() to
185 * correctly update state and send the IPC event. */
186 Con *ws = con_get_workspace(con);
187 if (ws != con_get_workspace(focused))
190 focused_id = XCB_NONE;
191 con_focus(con_descend_focused(con));
198 * When the user moves the mouse but does not change the active window
199 * (e.g. when having no windows opened but moving mouse on the root screen
200 * and crossing virtual screen boundaries), this callback gets called.
203 static void handle_motion_notify(xcb_motion_notify_event_t *event) {
205 last_timestamp = event->time;
207 /* Skip events where the pointer was over a child window, we are only
208 * interested in events on the root window. */
209 if (event->child != 0)
213 if ((con = con_by_frame_id(event->event)) == NULL) {
214 check_crossing_screen_boundary(event->root_x, event->root_y);
218 if (config.disable_focus_follows_mouse)
221 if (con->layout != L_DEFAULT)
224 /* see over which rect the user is */
226 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
227 if (!rect_contains(current->deco_rect, event->event_x, event->event_y))
230 /* We found the rect, let’s see if this window is focused */
231 if (TAILQ_FIRST(&(con->focus_head)) == current)
235 x_push_changes(croot);
243 * Called when the keyboard mapping changes (for example by using Xmodmap),
244 * we need to update our key bindings then (re-translate symbols).
247 static void handle_mapping_notify(xcb_mapping_notify_event_t *event) {
248 if (event->request != XCB_MAPPING_KEYBOARD &&
249 event->request != XCB_MAPPING_MODIFIER)
252 DLOG("Received mapping_notify for keyboard or modifier mapping, re-grabbing keys\n");
253 xcb_refresh_keyboard_mapping(keysyms, event);
255 xcb_numlock_mask = aio_get_mod_mask_for(XCB_NUM_LOCK, keysyms);
257 ungrab_all_keys(conn);
259 grab_all_keys(conn, false);
265 * A new window appeared on the screen (=was mapped), so let’s manage it.
268 static void handle_map_request(xcb_map_request_event_t *event) {
269 xcb_get_window_attributes_cookie_t cookie;
271 cookie = xcb_get_window_attributes_unchecked(conn, event->window);
273 DLOG("window = 0x%08x, serial is %d.\n", event->window, event->sequence);
274 add_ignore_event(event->sequence, -1);
276 manage_window(event->window, cookie, false);
277 x_push_changes(croot);
282 * Configure requests are received when the application wants to resize windows
285 * We generate a synthethic configure notify event to signalize the client its
289 static void handle_configure_request(xcb_configure_request_event_t *event) {
292 DLOG("window 0x%08x wants to be at %dx%d with %dx%d\n",
293 event->window, event->x, event->y, event->width, event->height);
295 /* For unmanaged windows, we just execute the configure request. As soon as
296 * it gets mapped, we will take over anyways. */
297 if ((con = con_by_window_id(event->window)) == NULL) {
298 DLOG("Configure request for unmanaged window, can do that.\n");
303 #define COPY_MASK_MEMBER(mask_member, event_member) do { \
304 if (event->value_mask & mask_member) { \
305 mask |= mask_member; \
306 values[c++] = event->event_member; \
310 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_X, x);
311 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_Y, y);
312 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_WIDTH, width);
313 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_HEIGHT, height);
314 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_BORDER_WIDTH, border_width);
315 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_SIBLING, sibling);
316 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_STACK_MODE, stack_mode);
318 xcb_configure_window(conn, event->window, mask, values);
324 DLOG("Configure request!\n");
325 if (con_is_floating(con) && con_is_leaf(con)) {
326 /* find the height for the decorations */
327 int deco_height = config.font.height + 5;
328 /* we actually need to apply the size/position changes to the *parent*
330 Rect bsr = con_border_style_rect(con);
331 if (con->border_style == BS_NORMAL) {
332 bsr.y += deco_height;
333 bsr.height -= deco_height;
335 Con *floatingcon = con->parent;
337 Rect newrect = floatingcon->rect;
339 if (event->value_mask & XCB_CONFIG_WINDOW_X) {
340 newrect.x = event->x + (-1) * bsr.x;
341 DLOG("proposed x = %d, new x is %d\n", event->x, newrect.x);
343 if (event->value_mask & XCB_CONFIG_WINDOW_Y) {
344 newrect.y = event->y + (-1) * bsr.y;
345 DLOG("proposed y = %d, new y is %d\n", event->y, newrect.y);
347 if (event->value_mask & XCB_CONFIG_WINDOW_WIDTH) {
348 newrect.width = event->width + (-1) * bsr.width;
349 newrect.width += con->border_width * 2;
350 DLOG("proposed width = %d, new width is %d (x11 border %d)\n",
351 event->width, newrect.width, con->border_width);
353 if (event->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
354 newrect.height = event->height + (-1) * bsr.height;
355 newrect.height += con->border_width * 2;
356 DLOG("proposed height = %d, new height is %d (x11 border %d)\n",
357 event->height, newrect.height, con->border_width);
360 DLOG("Container is a floating leaf node, will do that.\n");
361 floating_reposition(floatingcon, newrect);
365 /* Dock windows can be reconfigured in their height */
366 if (con->parent && con->parent->type == CT_DOCKAREA) {
367 DLOG("Dock window, only height reconfiguration allowed\n");
368 if (event->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
369 DLOG("Height given, changing\n");
371 con->geometry.height = event->height;
376 fake_absolute_configure_notify(con);
383 * Configuration notifies are only handled because we need to set up ignore for
384 * the following enter notify events.
387 int handle_configure_event(void *prophs, xcb_connection_t *conn, xcb_configure_notify_event_t *event) {
388 DLOG("configure_event, sequence %d\n", event->sequence);
389 /* We ignore this sequence twice because events for child and frame should be ignored */
390 add_ignore_event(event->sequence);
391 add_ignore_event(event->sequence);
398 * Gets triggered upon a RandR screen change event, that is when the user
399 * changes the screen configuration in any way (mode, position, …)
402 static void handle_screen_change(xcb_generic_event_t *e) {
403 DLOG("RandR screen change\n");
405 randr_query_outputs();
407 ipc_send_event("output", I3_IPC_EVENT_OUTPUT, "{\"change\":\"unspecified\"}");
413 * Our window decorations were unmapped. That means, the window will be killed
414 * now, so we better clean up before.
417 static void handle_unmap_notify_event(xcb_unmap_notify_event_t *event) {
418 DLOG("UnmapNotify for 0x%08x (received from 0x%08x), serial %d\n", event->window, event->event, event->sequence);
419 xcb_get_input_focus_cookie_t cookie;
420 Con *con = con_by_window_id(event->window);
422 /* This could also be an UnmapNotify for the frame. We need to
423 * decrement the ignore_unmap counter. */
424 con = con_by_frame_id(event->window);
426 LOG("Not a managed window, ignoring UnmapNotify event\n");
430 if (con->ignore_unmap > 0)
432 /* See the end of this function. */
433 cookie = xcb_get_input_focus(conn);
434 DLOG("ignore_unmap = %d for frame of container %p\n", con->ignore_unmap, con);
438 /* See the end of this function. */
439 cookie = xcb_get_input_focus(conn);
441 if (con->ignore_unmap > 0) {
442 DLOG("ignore_unmap = %d, dec\n", con->ignore_unmap);
447 tree_close(con, DONT_KILL_WINDOW, false, false);
449 x_push_changes(croot);
452 /* If the client (as opposed to i3) destroyed or unmapped a window, an
453 * EnterNotify event will follow (indistinguishable from an EnterNotify
454 * event caused by moving your mouse), causing i3 to set focus to whichever
455 * window is now visible.
457 * In a complex stacked or tabbed layout (take two v-split containers in a
458 * tabbed container), when the bottom window in tab2 is closed, the bottom
459 * window of tab1 is visible instead. X11 will thus send an EnterNotify
460 * event for the bottom window of tab1, while the focus should be set to
461 * the remaining window of tab2.
463 * Therefore, we ignore all EnterNotify events which have the same sequence
464 * as an UnmapNotify event. */
465 add_ignore_event(event->sequence, XCB_ENTER_NOTIFY);
467 /* Since we just ignored the sequence of this UnmapNotify, we want to make
468 * sure that following events use a different sequence. When putting xterm
469 * into fullscreen and moving the pointer to a different window, without
470 * using GetInputFocus, subsequent (legitimate) EnterNotify events arrived
471 * with the same sequence and thus were ignored (see ticket #609). */
472 free(xcb_get_input_focus_reply(conn, cookie, NULL));
476 * A destroy notify event is sent when the window is not unmapped, but
477 * immediately destroyed (for example when starting a window and immediately
478 * killing the program which started it).
480 * We just pass on the event to the unmap notify handler (by copying the
481 * important fields in the event data structure).
484 static void handle_destroy_notify_event(xcb_destroy_notify_event_t *event) {
485 DLOG("destroy notify for 0x%08x, 0x%08x\n", event->event, event->window);
487 xcb_unmap_notify_event_t unmap;
488 unmap.sequence = event->sequence;
489 unmap.event = event->event;
490 unmap.window = event->window;
492 handle_unmap_notify_event(&unmap);
496 * Called when a window changes its title
499 static bool handle_windowname_change(void *data, xcb_connection_t *conn, uint8_t state,
500 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
502 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
505 window_update_name(con->window, prop, false);
507 x_push_changes(croot);
513 * Handles legacy window name updates (WM_NAME), see also src/window.c,
514 * window_update_name_legacy().
517 static bool handle_windowname_change_legacy(void *data, xcb_connection_t *conn, uint8_t state,
518 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
520 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
523 window_update_name_legacy(con->window, prop, false);
525 x_push_changes(croot);
531 * Called when a window changes its WM_WINDOW_ROLE.
534 static bool handle_windowrole_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_role(con->window, prop, false);
547 * Updates the client’s WM_CLASS property
550 static int handle_windowclass_change(void *data, xcb_connection_t *conn, uint8_t state,
551 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
553 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
556 window_update_class(con->window, prop, false);
563 * Expose event means we should redraw our windows (= title bar)
566 static void handle_expose_event(xcb_expose_event_t *event) {
569 DLOG("window = %08x\n", event->window);
571 if ((parent = con_by_frame_id(event->window)) == NULL) {
572 LOG("expose event for unknown window, ignoring\n");
576 /* Since we render to our pixmap on every change anyways, expose events
577 * only tell us that the X server lost (parts of) the window contents. We
578 * can handle that by copying the appropriate part from our pixmap to the
580 xcb_copy_area(conn, parent->pixmap, parent->frame, parent->pm_gc,
581 event->x, event->y, event->x, event->y,
582 event->width, event->height);
589 * Handle client messages (EWMH)
592 static void handle_client_message(xcb_client_message_event_t *event) {
593 /* If this is a startup notification ClientMessage, the library will handle
594 * it and call our monitor_event() callback. */
595 if (sn_xcb_display_process_event(sndisplay, (xcb_generic_event_t*)event))
598 LOG("ClientMessage for window 0x%08x\n", event->window);
599 if (event->type == A__NET_WM_STATE) {
600 if (event->format != 32 || event->data.data32[1] != A__NET_WM_STATE_FULLSCREEN) {
601 DLOG("atom in clientmessage is %d, fullscreen is %d\n",
602 event->data.data32[1], A__NET_WM_STATE_FULLSCREEN);
603 DLOG("not about fullscreen atom\n");
607 Con *con = con_by_window_id(event->window);
609 DLOG("Could not get window for client message\n");
613 /* Check if the fullscreen state should be toggled */
614 if ((con->fullscreen_mode != CF_NONE &&
615 (event->data.data32[0] == _NET_WM_STATE_REMOVE ||
616 event->data.data32[0] == _NET_WM_STATE_TOGGLE)) ||
617 (con->fullscreen_mode == CF_NONE &&
618 (event->data.data32[0] == _NET_WM_STATE_ADD ||
619 event->data.data32[0] == _NET_WM_STATE_TOGGLE))) {
620 DLOG("toggling fullscreen\n");
621 con_toggle_fullscreen(con, CF_OUTPUT);
625 } else if (event->type == A_I3_SYNC) {
626 xcb_window_t window = event->data.data32[0];
627 uint32_t rnd = event->data.data32[1];
628 DLOG("[i3 sync protocol] Sending random value %d back to X11 window 0x%08x\n", rnd, window);
630 void *reply = scalloc(32);
631 xcb_client_message_event_t *ev = reply;
633 ev->response_type = XCB_CLIENT_MESSAGE;
635 ev->type = A_I3_SYNC;
637 ev->data.data32[0] = window;
638 ev->data.data32[1] = rnd;
640 xcb_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char*)ev);
644 DLOG("unhandled clientmessage\n");
650 int handle_window_type(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
651 xcb_atom_t atom, xcb_get_property_reply_t *property) {
652 /* TODO: Implement this one. To do this, implement a little test program which sleep(1)s
653 before changing this property. */
654 ELOG("_NET_WM_WINDOW_TYPE changed, this is not yet implemented.\n");
660 * Handles the size hints set by a window, but currently only the part necessary for displaying
661 * clients proportionally inside their frames (mplayer for example)
663 * See ICCCM 4.1.2.3 for more details
666 static bool handle_normal_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
667 xcb_atom_t name, xcb_get_property_reply_t *reply) {
668 Con *con = con_by_window_id(window);
670 DLOG("Received WM_NORMAL_HINTS for unknown client\n");
674 xcb_size_hints_t size_hints;
676 //CLIENT_LOG(client);
678 /* If the hints were already in this event, use them, if not, request them */
680 xcb_icccm_get_wm_size_hints_from_reply(&size_hints, reply);
682 xcb_icccm_get_wm_normal_hints_reply(conn, xcb_icccm_get_wm_normal_hints_unchecked(conn, con->window->id), &size_hints, NULL);
684 if ((size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MIN_SIZE)) {
685 // TODO: Minimum size is not yet implemented
686 DLOG("Minimum size: %d (width) x %d (height)\n", size_hints.min_width, size_hints.min_height);
689 bool changed = false;
690 if ((size_hints.flags & XCB_ICCCM_SIZE_HINT_P_RESIZE_INC)) {
691 if (size_hints.width_inc > 0 && size_hints.width_inc < 0xFFFF)
692 if (con->width_increment != size_hints.width_inc) {
693 con->width_increment = size_hints.width_inc;
696 if (size_hints.height_inc > 0 && size_hints.height_inc < 0xFFFF)
697 if (con->height_increment != size_hints.height_inc) {
698 con->height_increment = size_hints.height_inc;
703 DLOG("resize increments changed\n");
706 int base_width = 0, base_height = 0;
708 /* base_width/height are the desired size of the window.
709 We check if either the program-specified size or the program-specified
710 min-size is available */
711 if (size_hints.flags & XCB_ICCCM_SIZE_HINT_BASE_SIZE) {
712 base_width = size_hints.base_width;
713 base_height = size_hints.base_height;
714 } else if (size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MIN_SIZE) {
715 /* TODO: is this right? icccm says not */
716 base_width = size_hints.min_width;
717 base_height = size_hints.min_height;
720 if (base_width != con->base_width ||
721 base_height != con->base_height) {
722 con->base_width = base_width;
723 con->base_height = base_height;
724 DLOG("client's base_height changed to %d\n", base_height);
725 DLOG("client's base_width changed to %d\n", base_width);
729 /* If no aspect ratio was set or if it was invalid, we ignore the hints */
730 if (!(size_hints.flags & XCB_ICCCM_SIZE_HINT_P_ASPECT) ||
731 (size_hints.min_aspect_num <= 0) ||
732 (size_hints.min_aspect_den <= 0)) {
733 goto render_and_return;
736 /* XXX: do we really use rect here, not window_rect? */
737 double width = con->rect.width - base_width;
738 double height = con->rect.height - base_height;
739 /* Convert numerator/denominator to a double */
740 double min_aspect = (double)size_hints.min_aspect_num / size_hints.min_aspect_den;
741 double max_aspect = (double)size_hints.max_aspect_num / size_hints.min_aspect_den;
743 DLOG("Aspect ratio set: minimum %f, maximum %f\n", min_aspect, max_aspect);
744 DLOG("width = %f, height = %f\n", width, height);
746 /* Sanity checks, this is user-input, in a way */
747 if (max_aspect <= 0 || min_aspect <= 0 || height == 0 || (width / height) <= 0)
748 goto render_and_return;
750 /* Check if we need to set proportional_* variables using the correct ratio */
751 if ((width / height) < min_aspect) {
752 if (con->proportional_width != width ||
753 con->proportional_height != (width / min_aspect)) {
754 con->proportional_width = width;
755 con->proportional_height = width / min_aspect;
758 } else if ((width / height) > max_aspect) {
759 if (con->proportional_width != width ||
760 con->proportional_height != (width / max_aspect)) {
761 con->proportional_width = width;
762 con->proportional_height = width / max_aspect;
765 } else goto render_and_return;
775 * Handles the WM_HINTS property for extracting the urgency state of the window.
778 static bool handle_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
779 xcb_atom_t name, xcb_get_property_reply_t *reply) {
780 Con *con = con_by_window_id(window);
782 DLOG("Received WM_HINTS for unknown client\n");
786 xcb_icccm_wm_hints_t hints;
789 if (!(reply = xcb_get_property_reply(conn, xcb_icccm_get_wm_hints(conn, window), NULL)))
792 if (!xcb_icccm_get_wm_hints_from_reply(&hints, reply))
795 if (!con->urgent && focused == con) {
796 DLOG("Ignoring urgency flag for current client\n");
797 con->window->urgent.tv_sec = 0;
798 con->window->urgent.tv_usec = 0;
802 /* Update the flag on the client directly */
803 con->urgent = (xcb_icccm_wm_hints_get_urgency(&hints) != 0);
807 gettimeofday(&con->window->urgent, NULL);
809 con->window->urgent.tv_sec = 0;
810 con->window->urgent.tv_usec = 0;
813 LOG("Urgency flag changed to %d\n", con->urgent);
816 /* Set the urgency flag on the workspace, if a workspace could be found
817 * (for dock clients, that is not the case). */
818 if ((ws = con_get_workspace(con)) != NULL)
819 workspace_update_urgent_flag(ws);
825 window_update_hints(con->window, reply);
831 * Handles the transient for hints set by a window, signalizing that this window is a popup window
832 * for some other window.
834 * See ICCCM 4.1.2.6 for more details
837 static bool handle_transient_for(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
838 xcb_atom_t name, xcb_get_property_reply_t *prop) {
841 if ((con = con_by_window_id(window)) == NULL || con->window == NULL) {
842 DLOG("No such window\n");
847 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
848 false, window, XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 0, 32), NULL);
853 window_update_transient_for(con->window, prop);
859 * Handles changes of the WM_CLIENT_LEADER atom which specifies if this is a
860 * toolwindow (or similar) and to which window it belongs (logical parent).
863 static bool handle_clientleader_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
864 xcb_atom_t name, xcb_get_property_reply_t *prop) {
866 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
870 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
871 false, window, A_WM_CLIENT_LEADER, XCB_ATOM_WINDOW, 0, 32), NULL);
876 window_update_leader(con->window, prop);
882 * Handles FocusIn events which are generated by clients (i3’s focus changes
883 * don’t generate FocusIn events due to a different EventMask) and updates the
884 * decorations accordingly.
887 static void handle_focus_in(xcb_focus_in_event_t *event) {
888 DLOG("focus change in, for window 0x%08x\n", event->event);
890 if ((con = con_by_window_id(event->event)) == NULL || con->window == NULL)
892 DLOG("That is con %p / %s\n", con, con->name);
894 if (event->mode == XCB_NOTIFY_MODE_GRAB ||
895 event->mode == XCB_NOTIFY_MODE_UNGRAB) {
896 DLOG("FocusIn event for grab/ungrab, ignoring\n");
900 if (event->detail == XCB_NOTIFY_DETAIL_POINTER) {
901 DLOG("notify detail is pointer, ignoring this event\n");
905 if (focused_id == event->event) {
906 DLOG("focus matches the currently focused window, not doing anything\n");
910 /* Skip dock clients, they cannot get the i3 focus. */
911 if (con->parent->type == CT_DOCKAREA) {
912 DLOG("This is a dock client, not focusing.\n");
916 DLOG("focus is different, updating decorations\n");
918 /* Get the currently focused workspace to check if the focus change also
919 * involves changing workspaces. If so, we need to call workspace_show() to
920 * correctly update state and send the IPC event. */
921 Con *ws = con_get_workspace(con);
922 if (ws != con_get_workspace(focused))
926 /* We update focused_id because we don’t need to set focus again */
927 focused_id = event->event;
928 x_push_changes(croot);
932 /* Returns false if the event could not be processed (e.g. the window could not
933 * be found), true otherwise */
934 typedef bool (*cb_property_handler_t)(void *data, xcb_connection_t *c, uint8_t state, xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *property);
936 struct property_handler_t {
939 cb_property_handler_t cb;
942 static struct property_handler_t property_handlers[] = {
943 { 0, 128, handle_windowname_change },
944 { 0, UINT_MAX, handle_hints },
945 { 0, 128, handle_windowname_change_legacy },
946 { 0, UINT_MAX, handle_normal_hints },
947 { 0, UINT_MAX, handle_clientleader_change },
948 { 0, UINT_MAX, handle_transient_for },
949 { 0, 128, handle_windowrole_change }
951 #define NUM_HANDLERS (sizeof(property_handlers) / sizeof(struct property_handler_t))
954 * Sets the appropriate atoms for the property handlers after the atoms were
958 void property_handlers_init(void) {
960 sn_monitor_context_new(sndisplay, conn_screen, startup_monitor_event, NULL, NULL);
962 property_handlers[0].atom = A__NET_WM_NAME;
963 property_handlers[1].atom = XCB_ATOM_WM_HINTS;
964 property_handlers[2].atom = XCB_ATOM_WM_NAME;
965 property_handlers[3].atom = XCB_ATOM_WM_NORMAL_HINTS;
966 property_handlers[4].atom = A_WM_CLIENT_LEADER;
967 property_handlers[5].atom = XCB_ATOM_WM_TRANSIENT_FOR;
968 property_handlers[6].atom = A_WM_WINDOW_ROLE;
971 static void property_notify(uint8_t state, xcb_window_t window, xcb_atom_t atom) {
972 struct property_handler_t *handler = NULL;
973 xcb_get_property_reply_t *propr = NULL;
975 for (int c = 0; c < sizeof(property_handlers) / sizeof(struct property_handler_t); c++) {
976 if (property_handlers[c].atom != atom)
979 handler = &property_handlers[c];
983 if (handler == NULL) {
984 //DLOG("Unhandled property notify for atom %d (0x%08x)\n", atom, atom);
988 if (state != XCB_PROPERTY_DELETE) {
989 xcb_get_property_cookie_t cookie = xcb_get_property(conn, 0, window, atom, XCB_GET_PROPERTY_TYPE_ANY, 0, handler->long_len);
990 propr = xcb_get_property_reply(conn, cookie, 0);
993 /* the handler will free() the reply unless it returns false */
994 if (!handler->cb(NULL, conn, state, window, atom, propr))
999 * Takes an xcb_generic_event_t and calls the appropriate handler, based on the
1003 void handle_event(int type, xcb_generic_event_t *event) {
1004 if (randr_base > -1 &&
1005 type == randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY) {
1006 handle_screen_change(event);
1012 handle_key_press((xcb_key_press_event_t*)event);
1015 case XCB_BUTTON_PRESS:
1016 handle_button_press((xcb_button_press_event_t*)event);
1019 case XCB_MAP_REQUEST:
1020 handle_map_request((xcb_map_request_event_t*)event);
1023 case XCB_UNMAP_NOTIFY:
1024 handle_unmap_notify_event((xcb_unmap_notify_event_t*)event);
1027 case XCB_DESTROY_NOTIFY:
1028 handle_destroy_notify_event((xcb_destroy_notify_event_t*)event);
1032 handle_expose_event((xcb_expose_event_t*)event);
1035 case XCB_MOTION_NOTIFY:
1036 handle_motion_notify((xcb_motion_notify_event_t*)event);
1039 /* Enter window = user moved his mouse over the window */
1040 case XCB_ENTER_NOTIFY:
1041 handle_enter_notify((xcb_enter_notify_event_t*)event);
1044 /* Client message are sent to the root window. The only interesting
1045 * client message for us is _NET_WM_STATE, we honour
1046 * _NET_WM_STATE_FULLSCREEN */
1047 case XCB_CLIENT_MESSAGE:
1048 handle_client_message((xcb_client_message_event_t*)event);
1051 /* Configure request = window tried to change size on its own */
1052 case XCB_CONFIGURE_REQUEST:
1053 handle_configure_request((xcb_configure_request_event_t*)event);
1056 /* Mapping notify = keyboard mapping changed (Xmodmap), re-grab bindings */
1057 case XCB_MAPPING_NOTIFY:
1058 handle_mapping_notify((xcb_mapping_notify_event_t*)event);
1062 handle_focus_in((xcb_focus_in_event_t*)event);
1065 case XCB_PROPERTY_NOTIFY: {
1066 xcb_property_notify_event_t *e = (xcb_property_notify_event_t*)event;
1067 last_timestamp = e->time;
1068 property_notify(e->state, e->window, e->atom);
1073 //DLOG("Unhandled event of type %d\n", type);