2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
7 * handlers.c: Small handlers for various events (keypresses, focus changes,
16 #include <xcb/randr.h>
17 #define SN_API_NOT_YET_FROZEN 1
18 #include <libsn/sn-monitor.h>
22 int xkb_current_group;
24 /* After mapping/unmapping windows, a notify event is generated. However, we don’t want it,
25 since it’d trigger an infinite loop of switching between the different windows when
26 changing workspaces */
27 static SLIST_HEAD(ignore_head, Ignore_Event) ignore_events;
30 * Adds the given sequence to the list of events which are ignored.
31 * If this ignore should only affect a specific response_type, pass
32 * response_type, otherwise, pass -1.
34 * Every ignored sequence number gets garbage collected after 5 seconds.
37 void add_ignore_event(const int sequence, const int response_type) {
38 struct Ignore_Event *event = smalloc(sizeof(struct Ignore_Event));
40 event->sequence = sequence;
41 event->response_type = response_type;
42 event->added = time(NULL);
44 SLIST_INSERT_HEAD(&ignore_events, event, ignore_events);
48 * Checks if the given sequence is ignored and returns true if so.
51 bool event_is_ignored(const int sequence, const int response_type) {
52 struct Ignore_Event *event;
53 time_t now = time(NULL);
54 for (event = SLIST_FIRST(&ignore_events); event != SLIST_END(&ignore_events);) {
55 if ((now - event->added) > 5) {
56 struct Ignore_Event *save = event;
57 event = SLIST_NEXT(event, ignore_events);
58 SLIST_REMOVE(&ignore_events, save, Ignore_Event, ignore_events);
61 event = SLIST_NEXT(event, ignore_events);
64 SLIST_FOREACH(event, &ignore_events, ignore_events) {
65 if (event->sequence != sequence)
68 if (event->response_type != -1 &&
69 event->response_type != response_type)
72 /* instead of removing a sequence number we better wait until it gets
73 * garbage collected. it may generate multiple events (there are multiple
74 * enter_notifies for one configure_request, for example). */
75 //SLIST_REMOVE(&ignore_events, event, Ignore_Event, ignore_events);
84 * Called with coordinates of an enter_notify event or motion_notify event
85 * to check if the user crossed virtual screen boundaries and adjust the
86 * current workspace, if so.
89 static void check_crossing_screen_boundary(uint32_t x, uint32_t y) {
92 /* If the user disable focus follows mouse, we have nothing to do here */
93 if (config.disable_focus_follows_mouse)
96 if ((output = get_output_containing(x, y)) == NULL) {
97 ELOG("ERROR: No such screen\n");
101 if (output->con == NULL) {
102 ELOG("ERROR: The screen is not recognized by i3 (no container associated)\n");
106 /* Focus the output on which the user moved their cursor */
107 Con *old_focused = focused;
108 Con *next = con_descend_focused(output_get_content(output->con));
109 /* Since we are switching outputs, this *must* be a different workspace, so
110 * call workspace_show() */
111 workspace_show(con_get_workspace(next));
114 /* If the focus changed, we re-render to get updated decorations */
115 if (old_focused != focused)
120 * When the user moves the mouse pointer onto a window, this callback gets called.
123 static void handle_enter_notify(xcb_enter_notify_event_t *event) {
126 last_timestamp = event->time;
128 DLOG("enter_notify for %08x, mode = %d, detail %d, serial %d\n",
129 event->event, event->mode, event->detail, event->sequence);
130 DLOG("coordinates %d, %d\n", event->event_x, event->event_y);
131 if (event->mode != XCB_NOTIFY_MODE_NORMAL) {
132 DLOG("This was not a normal notify, ignoring\n");
135 /* Some events are not interesting, because they were not generated
136 * actively by the user, but by reconfiguration of windows */
137 if (event_is_ignored(event->sequence, XCB_ENTER_NOTIFY)) {
138 DLOG("Event ignored\n");
142 bool enter_child = false;
143 /* Get container by frame or by child window */
144 if ((con = con_by_frame_id(event->event)) == NULL) {
145 con = con_by_window_id(event->event);
149 /* If we cannot find the container, the user moved their cursor to the root
150 * window. In this case and if they used it to a dock, we need to focus the
151 * workspace on the correct output. */
152 if (con == NULL || con->parent->type == CT_DOCKAREA) {
153 DLOG("Getting screen at %d x %d\n", event->root_x, event->root_y);
154 check_crossing_screen_boundary(event->root_x, event->root_y);
158 /* see if the user entered the window on a certain window decoration */
159 layout_t 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);
170 if (config.disable_focus_follows_mouse)
173 /* if this container is already focused, there is nothing to do. */
177 /* Get the currently focused workspace to check if the focus change also
178 * involves changing workspaces. If so, we need to call workspace_show() to
179 * correctly update state and send the IPC event. */
180 Con *ws = con_get_workspace(con);
181 if (ws != con_get_workspace(focused))
184 focused_id = XCB_NONE;
185 con_focus(con_descend_focused(con));
192 * When the user moves the mouse but does not change the active window
193 * (e.g. when having no windows opened but moving mouse on the root screen
194 * and crossing virtual screen boundaries), this callback gets called.
197 static void handle_motion_notify(xcb_motion_notify_event_t *event) {
198 last_timestamp = event->time;
200 /* Skip events where the pointer was over a child window, we are only
201 * interested in events on the root window. */
202 if (event->child != XCB_NONE)
206 if ((con = con_by_frame_id(event->event)) == NULL) {
207 DLOG("MotionNotify for an unknown container, checking if it crosses screen boundaries.\n");
208 check_crossing_screen_boundary(event->root_x, event->root_y);
212 if (config.disable_focus_follows_mouse)
215 if (con->layout != L_DEFAULT && con->layout != L_SPLITV && con->layout != L_SPLITH)
218 /* see over which rect the user is */
220 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
221 if (!rect_contains(current->deco_rect, event->event_x, event->event_y))
224 /* We found the rect, let’s see if this window is focused */
225 if (TAILQ_FIRST(&(con->focus_head)) == current)
229 x_push_changes(croot);
235 * Called when the keyboard mapping changes (for example by using Xmodmap),
236 * we need to update our key bindings then (re-translate symbols).
239 static void handle_mapping_notify(xcb_mapping_notify_event_t *event) {
240 if (event->request != XCB_MAPPING_KEYBOARD &&
241 event->request != XCB_MAPPING_MODIFIER)
244 DLOG("Received mapping_notify for keyboard or modifier mapping, re-grabbing keys\n");
245 xcb_refresh_keyboard_mapping(keysyms, event);
247 xcb_numlock_mask = aio_get_mod_mask_for(XCB_NUM_LOCK, keysyms);
249 ungrab_all_keys(conn);
257 * A new window appeared on the screen (=was mapped), so let’s manage it.
260 static void handle_map_request(xcb_map_request_event_t *event) {
261 xcb_get_window_attributes_cookie_t cookie;
263 cookie = xcb_get_window_attributes_unchecked(conn, event->window);
265 DLOG("window = 0x%08x, serial is %d.\n", event->window, event->sequence);
266 add_ignore_event(event->sequence, -1);
268 manage_window(event->window, cookie, false);
273 * Configure requests are received when the application wants to resize windows
276 * We generate a synthethic configure notify event to signalize the client its
280 static void handle_configure_request(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 /* For unmanaged windows, we just execute the configure request. As soon as
287 * it gets mapped, we will take over anyways. */
288 if ((con = con_by_window_id(event->window)) == NULL) {
289 DLOG("Configure request for unmanaged window, can do that.\n");
294 #define COPY_MASK_MEMBER(mask_member, event_member) \
296 if (event->value_mask & mask_member) { \
297 mask |= mask_member; \
298 values[c++] = event->event_member; \
302 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_X, x);
303 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_Y, y);
304 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_WIDTH, width);
305 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_HEIGHT, height);
306 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_BORDER_WIDTH, border_width);
307 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_SIBLING, sibling);
308 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_STACK_MODE, stack_mode);
310 xcb_configure_window(conn, event->window, mask, values);
316 DLOG("Configure request!\n");
318 Con *workspace = con_get_workspace(con),
321 /* There might not be a corresponding workspace for dock cons, therefore we
322 * have to be careful here. */
324 fullscreen = con_get_fullscreen_con(workspace, CF_OUTPUT);
326 fullscreen = con_get_fullscreen_con(workspace, CF_GLOBAL);
329 if (fullscreen != con && con_is_floating(con) && con_is_leaf(con)) {
330 /* find the height for the decorations */
331 int deco_height = con->deco_rect.height;
332 /* we actually need to apply the size/position changes to the *parent*
334 Rect bsr = con_border_style_rect(con);
335 if (con->border_style == BS_NORMAL) {
336 bsr.y += deco_height;
337 bsr.height -= deco_height;
339 Con *floatingcon = con->parent;
341 if (strcmp(con_get_workspace(floatingcon)->name, "__i3_scratch") == 0) {
342 DLOG("This is a scratchpad container, ignoring ConfigureRequest\n");
346 Rect newrect = floatingcon->rect;
348 if (event->value_mask & XCB_CONFIG_WINDOW_X) {
349 newrect.x = event->x + (-1) * bsr.x;
350 DLOG("proposed x = %d, new x is %d\n", event->x, newrect.x);
352 if (event->value_mask & XCB_CONFIG_WINDOW_Y) {
353 newrect.y = event->y + (-1) * bsr.y;
354 DLOG("proposed y = %d, new y is %d\n", event->y, newrect.y);
356 if (event->value_mask & XCB_CONFIG_WINDOW_WIDTH) {
357 newrect.width = event->width + (-1) * bsr.width;
358 newrect.width += con->border_width * 2;
359 DLOG("proposed width = %d, new width is %d (x11 border %d)\n",
360 event->width, newrect.width, con->border_width);
362 if (event->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
363 newrect.height = event->height + (-1) * bsr.height;
364 newrect.height += con->border_width * 2;
365 DLOG("proposed height = %d, new height is %d (x11 border %d)\n",
366 event->height, newrect.height, con->border_width);
369 DLOG("Container is a floating leaf node, will do that.\n");
370 floating_reposition(floatingcon, newrect);
374 /* Dock windows can be reconfigured in their height and moved to another output. */
375 if (con->parent && con->parent->type == CT_DOCKAREA) {
376 DLOG("Reconfiguring dock window (con = %p).\n", con);
377 if (event->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
378 DLOG("Dock client wants to change height to %d, we can do that.\n", event->height);
380 con->geometry.height = event->height;
384 if (event->value_mask & XCB_CONFIG_WINDOW_X || event->value_mask & XCB_CONFIG_WINDOW_Y) {
385 int16_t x = event->value_mask & XCB_CONFIG_WINDOW_X ? event->x : (int16_t)con->geometry.x;
386 int16_t y = event->value_mask & XCB_CONFIG_WINDOW_Y ? event->y : (int16_t)con->geometry.y;
388 Con *current_output = con_get_output(con);
389 Output *target = get_output_containing(x, y);
390 if (target != NULL && current_output != target->con) {
391 DLOG("Dock client is requested to be moved to output %s, moving it there.\n", output_primary_name(target));
393 Con *nc = con_for_window(target->con, con->window, &match);
394 DLOG("Dock client will be moved to container %p.\n", nc);
396 con_attach(con, nc, false);
400 DLOG("Dock client will not be moved, we only support moving it to another output.\n");
403 fake_absolute_configure_notify(con);
407 if (event->value_mask & XCB_CONFIG_WINDOW_STACK_MODE) {
408 DLOG("window 0x%08x wants to be stacked %d\n", event->window, event->stack_mode);
410 /* Emacs and IntelliJ Idea “request focus” by stacking their window
411 * above all others. */
412 if (event->stack_mode != XCB_STACK_MODE_ABOVE) {
413 DLOG("stack_mode != XCB_STACK_MODE_ABOVE, ignoring ConfigureRequest\n");
417 if (fullscreen || !con_is_leaf(con)) {
418 DLOG("fullscreen or not a leaf, ignoring ConfigureRequest\n");
422 Con *ws = con_get_workspace(con);
424 DLOG("Window is not being managed, ignoring ConfigureRequest\n");
428 if (strcmp(ws->name, "__i3_scratch") == 0) {
429 DLOG("This is a scratchpad container, ignoring ConfigureRequest\n");
433 if (config.focus_on_window_activation == FOWA_FOCUS || (config.focus_on_window_activation == FOWA_SMART && workspace_is_visible(ws))) {
434 DLOG("Focusing con = %p\n", con);
438 } else if (config.focus_on_window_activation == FOWA_URGENT || (config.focus_on_window_activation == FOWA_SMART && !workspace_is_visible(ws))) {
439 DLOG("Marking con = %p urgent\n", con);
440 con_set_urgency(con, true);
443 DLOG("Ignoring request for con = %p.\n", con);
448 fake_absolute_configure_notify(con);
452 * Gets triggered upon a RandR screen change event, that is when the user
453 * changes the screen configuration in any way (mode, position, …)
456 static void handle_screen_change(xcb_generic_event_t *e) {
457 DLOG("RandR screen change\n");
459 /* The geometry of the root window is used for “fullscreen global” and
460 * changes when new outputs are added. */
461 xcb_get_geometry_cookie_t cookie = xcb_get_geometry(conn, root);
462 xcb_get_geometry_reply_t *reply = xcb_get_geometry_reply(conn, cookie, NULL);
464 ELOG("Could not get geometry of the root window, exiting\n");
467 DLOG("root geometry reply: (%d, %d) %d x %d\n", reply->x, reply->y, reply->width, reply->height);
469 croot->rect.width = reply->width;
470 croot->rect.height = reply->height;
472 randr_query_outputs();
474 scratchpad_fix_resolution();
476 ipc_send_event("output", I3_IPC_EVENT_OUTPUT, "{\"change\":\"unspecified\"}");
482 * Our window decorations were unmapped. That means, the window will be killed
483 * now, so we better clean up before.
486 static void handle_unmap_notify_event(xcb_unmap_notify_event_t *event) {
487 DLOG("UnmapNotify for 0x%08x (received from 0x%08x), serial %d\n", event->window, event->event, event->sequence);
488 xcb_get_input_focus_cookie_t cookie;
489 Con *con = con_by_window_id(event->window);
491 /* This could also be an UnmapNotify for the frame. We need to
492 * decrement the ignore_unmap counter. */
493 con = con_by_frame_id(event->window);
495 LOG("Not a managed window, ignoring UnmapNotify event\n");
499 if (con->ignore_unmap > 0)
501 /* See the end of this function. */
502 cookie = xcb_get_input_focus(conn);
503 DLOG("ignore_unmap = %d for frame of container %p\n", con->ignore_unmap, con);
507 /* See the end of this function. */
508 cookie = xcb_get_input_focus(conn);
510 if (con->ignore_unmap > 0) {
511 DLOG("ignore_unmap = %d, dec\n", con->ignore_unmap);
516 /* Since we close the container, we need to unset _NET_WM_DESKTOP and
517 * _NET_WM_STATE according to the spec. */
518 xcb_delete_property(conn, event->window, A__NET_WM_DESKTOP);
519 xcb_delete_property(conn, event->window, A__NET_WM_STATE);
521 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
525 /* If the client (as opposed to i3) destroyed or unmapped a window, an
526 * EnterNotify event will follow (indistinguishable from an EnterNotify
527 * event caused by moving your mouse), causing i3 to set focus to whichever
528 * window is now visible.
530 * In a complex stacked or tabbed layout (take two v-split containers in a
531 * tabbed container), when the bottom window in tab2 is closed, the bottom
532 * window of tab1 is visible instead. X11 will thus send an EnterNotify
533 * event for the bottom window of tab1, while the focus should be set to
534 * the remaining window of tab2.
536 * Therefore, we ignore all EnterNotify events which have the same sequence
537 * as an UnmapNotify event. */
538 add_ignore_event(event->sequence, XCB_ENTER_NOTIFY);
540 /* Since we just ignored the sequence of this UnmapNotify, we want to make
541 * sure that following events use a different sequence. When putting xterm
542 * into fullscreen and moving the pointer to a different window, without
543 * using GetInputFocus, subsequent (legitimate) EnterNotify events arrived
544 * with the same sequence and thus were ignored (see ticket #609). */
545 free(xcb_get_input_focus_reply(conn, cookie, NULL));
549 * A destroy notify event is sent when the window is not unmapped, but
550 * immediately destroyed (for example when starting a window and immediately
551 * killing the program which started it).
553 * We just pass on the event to the unmap notify handler (by copying the
554 * important fields in the event data structure).
557 static void handle_destroy_notify_event(xcb_destroy_notify_event_t *event) {
558 DLOG("destroy notify for 0x%08x, 0x%08x\n", event->event, event->window);
560 xcb_unmap_notify_event_t unmap;
561 unmap.sequence = event->sequence;
562 unmap.event = event->event;
563 unmap.window = event->window;
565 handle_unmap_notify_event(&unmap);
568 static bool window_name_changed(i3Window *window, char *old_name) {
569 if ((old_name == NULL) && (window->name == NULL))
572 /* Either the old or the new one is NULL, but not both. */
573 if ((old_name == NULL) ^ (window->name == NULL))
576 return (strcmp(old_name, i3string_as_utf8(window->name)) != 0);
580 * Called when a window changes its title
583 static bool handle_windowname_change(void *data, xcb_connection_t *conn, uint8_t state,
584 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
586 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
589 char *old_name = (con->window->name != NULL ? sstrdup(i3string_as_utf8(con->window->name)) : NULL);
591 window_update_name(con->window, prop, false);
593 x_push_changes(croot);
595 if (window_name_changed(con->window, old_name))
596 ipc_send_window_event("title", con);
604 * Handles legacy window name updates (WM_NAME), see also src/window.c,
605 * window_update_name_legacy().
608 static bool handle_windowname_change_legacy(void *data, xcb_connection_t *conn, uint8_t state,
609 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
611 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
614 char *old_name = (con->window->name != NULL ? sstrdup(i3string_as_utf8(con->window->name)) : NULL);
616 window_update_name_legacy(con->window, prop, false);
618 x_push_changes(croot);
620 if (window_name_changed(con->window, old_name))
621 ipc_send_window_event("title", con);
629 * Called when a window changes its WM_WINDOW_ROLE.
632 static bool handle_windowrole_change(void *data, xcb_connection_t *conn, uint8_t state,
633 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
635 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
638 window_update_role(con->window, prop, false);
644 * Expose event means we should redraw our windows (= title bar)
647 static void handle_expose_event(xcb_expose_event_t *event) {
650 DLOG("window = %08x\n", event->window);
652 if ((parent = con_by_frame_id(event->window)) == NULL) {
653 LOG("expose event for unknown window, ignoring\n");
657 /* Since we render to our surface on every change anyways, expose events
658 * only tell us that the X server lost (parts of) the window contents. */
659 draw_util_copy_surface(&(parent->frame_buffer), &(parent->frame),
660 0, 0, 0, 0, parent->rect.width, parent->rect.height);
665 #define _NET_WM_MOVERESIZE_SIZE_TOPLEFT 0
666 #define _NET_WM_MOVERESIZE_SIZE_TOP 1
667 #define _NET_WM_MOVERESIZE_SIZE_TOPRIGHT 2
668 #define _NET_WM_MOVERESIZE_SIZE_RIGHT 3
669 #define _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT 4
670 #define _NET_WM_MOVERESIZE_SIZE_BOTTOM 5
671 #define _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT 6
672 #define _NET_WM_MOVERESIZE_SIZE_LEFT 7
673 #define _NET_WM_MOVERESIZE_MOVE 8 /* movement only */
674 #define _NET_WM_MOVERESIZE_SIZE_KEYBOARD 9 /* size via keyboard */
675 #define _NET_WM_MOVERESIZE_MOVE_KEYBOARD 10 /* move via keyboard */
676 #define _NET_WM_MOVERESIZE_CANCEL 11 /* cancel operation */
678 #define _NET_MOVERESIZE_WINDOW_X (1 << 8)
679 #define _NET_MOVERESIZE_WINDOW_Y (1 << 9)
680 #define _NET_MOVERESIZE_WINDOW_WIDTH (1 << 10)
681 #define _NET_MOVERESIZE_WINDOW_HEIGHT (1 << 11)
684 * Handle client messages (EWMH)
687 static void handle_client_message(xcb_client_message_event_t *event) {
688 /* If this is a startup notification ClientMessage, the library will handle
689 * it and call our monitor_event() callback. */
690 if (sn_xcb_display_process_event(sndisplay, (xcb_generic_event_t *)event))
693 LOG("ClientMessage for window 0x%08x\n", event->window);
694 if (event->type == A__NET_WM_STATE) {
695 if (event->format != 32 ||
696 (event->data.data32[1] != A__NET_WM_STATE_FULLSCREEN &&
697 event->data.data32[1] != A__NET_WM_STATE_DEMANDS_ATTENTION &&
698 event->data.data32[1] != A__NET_WM_STATE_STICKY)) {
699 DLOG("Unknown atom in clientmessage of type %d\n", event->data.data32[1]);
703 Con *con = con_by_window_id(event->window);
705 DLOG("Could not get window for client message\n");
709 if (event->data.data32[1] == A__NET_WM_STATE_FULLSCREEN) {
710 /* Check if the fullscreen state should be toggled */
711 if ((con->fullscreen_mode != CF_NONE &&
712 (event->data.data32[0] == _NET_WM_STATE_REMOVE ||
713 event->data.data32[0] == _NET_WM_STATE_TOGGLE)) ||
714 (con->fullscreen_mode == CF_NONE &&
715 (event->data.data32[0] == _NET_WM_STATE_ADD ||
716 event->data.data32[0] == _NET_WM_STATE_TOGGLE))) {
717 DLOG("toggling fullscreen\n");
718 con_toggle_fullscreen(con, CF_OUTPUT);
720 } else if (event->data.data32[1] == A__NET_WM_STATE_DEMANDS_ATTENTION) {
721 /* Check if the urgent flag must be set or not */
722 if (event->data.data32[0] == _NET_WM_STATE_ADD)
723 con_set_urgency(con, true);
724 else if (event->data.data32[0] == _NET_WM_STATE_REMOVE)
725 con_set_urgency(con, false);
726 else if (event->data.data32[0] == _NET_WM_STATE_TOGGLE)
727 con_set_urgency(con, !con->urgent);
728 } else if (event->data.data32[1] == A__NET_WM_STATE_STICKY) {
729 DLOG("Received a client message to modify _NET_WM_STATE_STICKY.\n");
730 if (event->data.data32[0] == _NET_WM_STATE_ADD)
732 else if (event->data.data32[0] == _NET_WM_STATE_REMOVE)
734 else if (event->data.data32[0] == _NET_WM_STATE_TOGGLE)
735 con->sticky = !con->sticky;
737 DLOG("New sticky status for con = %p is %i.\n", con, con->sticky);
738 ewmh_update_sticky(con->window->id, con->sticky);
739 output_push_sticky_windows(focused);
740 ewmh_update_wm_desktop();
744 } else if (event->type == A__NET_ACTIVE_WINDOW) {
745 if (event->format != 32)
748 DLOG("_NET_ACTIVE_WINDOW: Window 0x%08x should be activated\n", event->window);
750 Con *con = con_by_window_id(event->window);
752 DLOG("Could not get window for client message\n");
756 Con *ws = con_get_workspace(con);
758 DLOG("Window is not being managed, ignoring _NET_ACTIVE_WINDOW\n");
762 if (con_is_internal(ws) && ws != workspace_get("__i3_scratch", NULL)) {
763 DLOG("Workspace is internal but not scratchpad, ignoring _NET_ACTIVE_WINDOW\n");
767 /* data32[0] indicates the source of the request (application or pager) */
768 if (event->data.data32[0] == 2) {
769 /* Always focus the con if it is from a pager, because this is most
770 * likely from some user action */
771 DLOG("This request came from a pager. Focusing con = %p\n", con);
773 if (con_is_internal(ws)) {
774 scratchpad_show(con);
780 /* Request is from an application. */
781 if (con_is_internal(ws)) {
782 DLOG("Ignoring request to make con = %p active because it's on an internal workspace.\n", con);
786 if (config.focus_on_window_activation == FOWA_FOCUS || (config.focus_on_window_activation == FOWA_SMART && workspace_is_visible(ws))) {
787 DLOG("Focusing con = %p\n", con);
790 } else if (config.focus_on_window_activation == FOWA_URGENT || (config.focus_on_window_activation == FOWA_SMART && !workspace_is_visible(ws))) {
791 DLOG("Marking con = %p urgent\n", con);
792 con_set_urgency(con, true);
794 DLOG("Ignoring request for con = %p.\n", con);
798 } else if (event->type == A_I3_SYNC) {
799 xcb_window_t window = event->data.data32[0];
800 uint32_t rnd = event->data.data32[1];
801 DLOG("[i3 sync protocol] Sending random value %d back to X11 window 0x%08x\n", rnd, window);
803 void *reply = scalloc(32, 1);
804 xcb_client_message_event_t *ev = reply;
806 ev->response_type = XCB_CLIENT_MESSAGE;
808 ev->type = A_I3_SYNC;
810 ev->data.data32[0] = window;
811 ev->data.data32[1] = rnd;
813 xcb_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char *)ev);
816 } else if (event->type == A__NET_REQUEST_FRAME_EXTENTS) {
818 * A client can request an estimate for the frame size which the window
819 * manager will put around it before actually mapping its window. Java
820 * does this (as of openjdk-7).
822 * Note that the calculation below is not entirely accurate — once you
823 * set a different border type, it’s off. We _could_ request all the
824 * window properties (which have to be set up at this point according
825 * to EWMH), but that seems rather elaborate. The standard explicitly
826 * says the application must cope with an estimate that is not entirely
829 DLOG("_NET_REQUEST_FRAME_EXTENTS for window 0x%08x\n", event->window);
831 /* The reply data: approximate frame size */
833 config.default_border_width, /* left */
834 config.default_border_width, /* right */
835 config.font.height + 5, /* top */
836 config.default_border_width /* bottom */
840 XCB_PROP_MODE_REPLACE,
842 A__NET_FRAME_EXTENTS,
843 XCB_ATOM_CARDINAL, 32, 4,
846 } else if (event->type == A__NET_CURRENT_DESKTOP) {
847 /* This request is used by pagers and bars to change the current
848 * desktop likely as a result of some user action. We interpret this as
849 * a request to focus the given workspace. See
850 * http://standards.freedesktop.org/wm-spec/latest/ar01s03.html#idm140251368135008
852 DLOG("Request to change current desktop to index %d\n", event->data.data32[0]);
853 Con *ws = ewmh_get_workspace_by_index(event->data.data32[0]);
855 ELOG("Could not determine workspace for this index, ignoring request.\n");
859 DLOG("Handling request to focus workspace %s\n", ws->name);
862 } else if (event->type == A__NET_WM_DESKTOP) {
863 uint32_t index = event->data.data32[0];
864 DLOG("Request to move window %d to EWMH desktop index %d\n", event->window, index);
866 Con *con = con_by_window_id(event->window);
868 DLOG("Couldn't find con for window %d, ignoring the request.\n", event->window);
872 if (index == NET_WM_DESKTOP_ALL) {
873 /* The window is requesting to be visible on all workspaces, so
874 * let's float it and make it sticky. */
875 DLOG("The window was requested to be visible on all workspaces, making it sticky and floating.\n");
877 floating_enable(con, false);
880 ewmh_update_sticky(con->window->id, true);
881 output_push_sticky_windows(focused);
883 Con *ws = ewmh_get_workspace_by_index(index);
885 ELOG("Could not determine workspace for this index, ignoring request.\n");
889 con_move_to_workspace(con, ws, true, false, false);
893 ewmh_update_wm_desktop();
894 } else if (event->type == A__NET_CLOSE_WINDOW) {
896 * Pagers wanting to close a window MUST send a _NET_CLOSE_WINDOW
897 * client message request to the root window.
898 * http://standards.freedesktop.org/wm-spec/wm-spec-latest.html#idm140200472668896
900 Con *con = con_by_window_id(event->window);
902 DLOG("Handling _NET_CLOSE_WINDOW request (con = %p)\n", con);
904 if (event->data.data32[0])
905 last_timestamp = event->data.data32[0];
907 tree_close_internal(con, KILL_WINDOW, false, false);
910 DLOG("Couldn't find con for _NET_CLOSE_WINDOW request. (window = %d)\n", event->window);
912 } else if (event->type == A__NET_WM_MOVERESIZE) {
914 * Client-side decorated Gtk3 windows emit this signal when being
915 * dragged by their GtkHeaderBar
917 Con *con = con_by_window_id(event->window);
918 if (!con || !con_is_floating(con)) {
919 DLOG("Couldn't find con for _NET_WM_MOVERESIZE request, or con not floating (window = %d)\n", event->window);
922 DLOG("Handling _NET_WM_MOVERESIZE request (con = %p)\n", con);
923 uint32_t direction = event->data.data32[2];
924 uint32_t x_root = event->data.data32[0];
925 uint32_t y_root = event->data.data32[1];
926 /* construct fake xcb_button_press_event_t */
927 xcb_button_press_event_t fake = {
930 .event_x = x_root - (con->rect.x),
931 .event_y = y_root - (con->rect.y)};
933 case _NET_WM_MOVERESIZE_MOVE:
934 floating_drag_window(con->parent, &fake);
936 case _NET_WM_MOVERESIZE_SIZE_TOPLEFT... _NET_WM_MOVERESIZE_SIZE_LEFT:
937 floating_resize_window(con->parent, false, &fake);
940 DLOG("_NET_WM_MOVERESIZE direction %d not implemented\n", direction);
943 } else if (event->type == A__NET_MOVERESIZE_WINDOW) {
944 DLOG("Received _NET_MOVE_RESIZE_WINDOW. Handling by faking a configure request.\n");
946 void *_generated_event = scalloc(32, 1);
947 xcb_configure_request_event_t *generated_event = _generated_event;
949 generated_event->window = event->window;
950 generated_event->response_type = XCB_CONFIGURE_REQUEST;
952 generated_event->value_mask = 0;
953 if (event->data.data32[0] & _NET_MOVERESIZE_WINDOW_X) {
954 generated_event->value_mask |= XCB_CONFIG_WINDOW_X;
955 generated_event->x = event->data.data32[1];
957 if (event->data.data32[0] & _NET_MOVERESIZE_WINDOW_Y) {
958 generated_event->value_mask |= XCB_CONFIG_WINDOW_Y;
959 generated_event->y = event->data.data32[2];
961 if (event->data.data32[0] & _NET_MOVERESIZE_WINDOW_WIDTH) {
962 generated_event->value_mask |= XCB_CONFIG_WINDOW_WIDTH;
963 generated_event->width = event->data.data32[3];
965 if (event->data.data32[0] & _NET_MOVERESIZE_WINDOW_HEIGHT) {
966 generated_event->value_mask |= XCB_CONFIG_WINDOW_HEIGHT;
967 generated_event->height = event->data.data32[4];
970 handle_configure_request(generated_event);
971 FREE(generated_event);
973 DLOG("Skipping client message for unhandled type %d\n", event->type);
977 bool handle_window_type(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
978 xcb_atom_t atom, xcb_get_property_reply_t *reply) {
980 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
983 window_update_type(con->window, reply);
988 * Handles the size hints set by a window, but currently only the part necessary for displaying
989 * clients proportionally inside their frames (mplayer for example)
991 * See ICCCM 4.1.2.3 for more details
994 static bool handle_normal_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
995 xcb_atom_t name, xcb_get_property_reply_t *reply) {
996 Con *con = con_by_window_id(window);
998 DLOG("Received WM_NORMAL_HINTS for unknown client\n");
1002 xcb_size_hints_t size_hints;
1004 /* If the hints were already in this event, use them, if not, request them */
1005 if (reply != NULL) {
1006 xcb_icccm_get_wm_size_hints_from_reply(&size_hints, reply);
1008 xcb_icccm_get_wm_normal_hints_reply(conn, xcb_icccm_get_wm_normal_hints_unchecked(conn, con->window->id), &size_hints, NULL);
1011 int win_width = con->window_rect.width;
1012 int win_height = con->window_rect.height;
1014 if ((size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MIN_SIZE)) {
1015 DLOG("Minimum size: %d (width) x %d (height)\n", size_hints.min_width, size_hints.min_height);
1017 con->window->min_width = size_hints.min_width;
1018 con->window->min_height = size_hints.min_height;
1021 if (con_is_floating(con)) {
1022 win_width = MAX(win_width, con->window->min_width);
1023 win_height = MAX(win_height, con->window->min_height);
1026 bool changed = false;
1027 if ((size_hints.flags & XCB_ICCCM_SIZE_HINT_P_RESIZE_INC)) {
1028 if (size_hints.width_inc > 0 && size_hints.width_inc < 0xFFFF) {
1029 if (con->window->width_increment != size_hints.width_inc) {
1030 con->window->width_increment = size_hints.width_inc;
1035 if (size_hints.height_inc > 0 && size_hints.height_inc < 0xFFFF) {
1036 if (con->window->height_increment != size_hints.height_inc) {
1037 con->window->height_increment = size_hints.height_inc;
1043 DLOG("resize increments changed\n");
1047 bool has_base_size = false;
1049 int base_height = 0;
1051 /* The base width / height is the desired size of the window. */
1052 if (size_hints.flags & XCB_ICCCM_SIZE_HINT_BASE_SIZE) {
1053 base_width = size_hints.base_width;
1054 base_height = size_hints.base_height;
1055 has_base_size = true;
1058 /* If the window didn't specify a base size, the ICCCM tells us to fall
1059 * back to the minimum size instead, if available. */
1060 if (!has_base_size && size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MIN_SIZE) {
1061 base_width = size_hints.min_width;
1062 base_height = size_hints.min_height;
1065 // TODO XXX Should we only do this is the base size is > 0?
1066 if (base_width != con->window->base_width || base_height != con->window->base_height) {
1067 con->window->base_width = base_width;
1068 con->window->base_height = base_height;
1070 DLOG("client's base_height changed to %d\n", base_height);
1071 DLOG("client's base_width changed to %d\n", base_width);
1075 /* If no aspect ratio was set or if it was invalid, we ignore the hints */
1076 if (!(size_hints.flags & XCB_ICCCM_SIZE_HINT_P_ASPECT) ||
1077 (size_hints.min_aspect_num <= 0) ||
1078 (size_hints.min_aspect_den <= 0)) {
1079 goto render_and_return;
1082 /* The ICCCM says to subtract the base size from the window size for aspect
1083 * ratio calculations. However, unlike determining the base size itself we
1084 * must not fall back to using the minimum size in this case according to
1086 double width = win_width - base_width * has_base_size;
1087 double height = win_height - base_height * has_base_size;
1089 /* Convert numerator/denominator to a double */
1090 double min_aspect = (double)size_hints.min_aspect_num / size_hints.min_aspect_den;
1091 double max_aspect = (double)size_hints.max_aspect_num / size_hints.min_aspect_den;
1093 DLOG("Aspect ratio set: minimum %f, maximum %f\n", min_aspect, max_aspect);
1094 DLOG("width = %f, height = %f\n", width, height);
1096 /* Sanity checks, this is user-input, in a way */
1097 if (max_aspect <= 0 || min_aspect <= 0 || height == 0 || (width / height) <= 0) {
1098 goto render_and_return;
1101 /* Check if we need to set proportional_* variables using the correct ratio */
1102 double aspect_ratio = 0.0;
1103 if ((width / height) < min_aspect) {
1104 aspect_ratio = min_aspect;
1105 } else if ((width / height) > max_aspect) {
1106 aspect_ratio = max_aspect;
1108 goto render_and_return;
1111 if (fabs(con->window->aspect_ratio - aspect_ratio) > DBL_EPSILON) {
1112 con->window->aspect_ratio = aspect_ratio;
1126 * Handles the WM_HINTS property for extracting the urgency state of the window.
1129 static bool handle_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1130 xcb_atom_t name, xcb_get_property_reply_t *reply) {
1131 Con *con = con_by_window_id(window);
1133 DLOG("Received WM_HINTS for unknown client\n");
1139 reply = xcb_get_property_reply(conn, xcb_icccm_get_wm_hints(conn, window), NULL);
1140 window_update_hints(con->window, reply, &urgency_hint);
1141 con_set_urgency(con, urgency_hint);
1148 * Handles the transient for hints set by a window, signalizing that this window is a popup window
1149 * for some other window.
1151 * See ICCCM 4.1.2.6 for more details
1154 static bool handle_transient_for(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1155 xcb_atom_t name, xcb_get_property_reply_t *prop) {
1158 if ((con = con_by_window_id(window)) == NULL || con->window == NULL) {
1159 DLOG("No such window\n");
1164 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
1165 false, window, XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 0, 32),
1171 window_update_transient_for(con->window, prop);
1177 * Handles changes of the WM_CLIENT_LEADER atom which specifies if this is a
1178 * toolwindow (or similar) and to which window it belongs (logical parent).
1181 static bool handle_clientleader_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1182 xcb_atom_t name, xcb_get_property_reply_t *prop) {
1184 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
1188 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
1189 false, window, A_WM_CLIENT_LEADER, XCB_ATOM_WINDOW, 0, 32),
1195 window_update_leader(con->window, prop);
1201 * Handles FocusIn events which are generated by clients (i3’s focus changes
1202 * don’t generate FocusIn events due to a different EventMask) and updates the
1203 * decorations accordingly.
1206 static void handle_focus_in(xcb_focus_in_event_t *event) {
1207 DLOG("focus change in, for window 0x%08x\n", event->event);
1209 if ((con = con_by_window_id(event->event)) == NULL || con->window == NULL)
1211 DLOG("That is con %p / %s\n", con, con->name);
1213 if (event->mode == XCB_NOTIFY_MODE_GRAB ||
1214 event->mode == XCB_NOTIFY_MODE_UNGRAB) {
1215 DLOG("FocusIn event for grab/ungrab, ignoring\n");
1219 if (event->detail == XCB_NOTIFY_DETAIL_POINTER) {
1220 DLOG("notify detail is pointer, ignoring this event\n");
1224 if (focused_id == event->event) {
1225 DLOG("focus matches the currently focused window, not doing anything\n");
1229 /* Skip dock clients, they cannot get the i3 focus. */
1230 if (con->parent->type == CT_DOCKAREA) {
1231 DLOG("This is a dock client, not focusing.\n");
1235 DLOG("focus is different, updating decorations\n");
1237 /* Get the currently focused workspace to check if the focus change also
1238 * involves changing workspaces. If so, we need to call workspace_show() to
1239 * correctly update state and send the IPC event. */
1240 Con *ws = con_get_workspace(con);
1241 if (ws != con_get_workspace(focused))
1245 /* We update focused_id because we don’t need to set focus again */
1246 focused_id = event->event;
1247 x_push_changes(croot);
1252 * Handles ConfigureNotify events for the root window, which are generated when
1253 * the monitor configuration changed.
1256 static void handle_configure_notify(xcb_configure_notify_event_t *event) {
1257 if (event->event != root) {
1258 DLOG("ConfigureNotify for non-root window 0x%08x, ignoring\n", event->event);
1261 DLOG("ConfigureNotify for root window 0x%08x\n", event->event);
1263 randr_query_outputs();
1267 * Handles the WM_CLASS property for assignments and criteria selection.
1270 static bool handle_class_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1271 xcb_atom_t name, xcb_get_property_reply_t *prop) {
1273 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
1277 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
1278 false, window, XCB_ATOM_WM_CLASS, XCB_ATOM_STRING, 0, 32),
1285 window_update_class(con->window, prop, false);
1291 * Handles the _MOTIF_WM_HINTS property of specifing window deocration settings.
1294 static bool handle_motif_hints_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1295 xcb_atom_t name, xcb_get_property_reply_t *prop) {
1297 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
1301 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn,
1302 false, window, A__MOTIF_WM_HINTS, XCB_GET_PROPERTY_TYPE_ANY, 0, 5 * sizeof(uint64_t)),
1309 border_style_t motif_border_style;
1310 window_update_motif_hints(con->window, prop, &motif_border_style);
1312 if (motif_border_style != con->border_style && motif_border_style != BS_NORMAL) {
1313 DLOG("Update border style of con %p to %d\n", con, motif_border_style);
1314 con_set_border_style(con, motif_border_style, con->current_border_width);
1316 x_push_changes(croot);
1323 * Handles the _NET_WM_STRUT_PARTIAL property for allocating space for dock clients.
1326 static bool handle_strut_partial_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1327 xcb_atom_t name, xcb_get_property_reply_t *prop) {
1328 DLOG("strut partial change for window 0x%08x\n", window);
1331 if ((con = con_by_window_id(window)) == NULL || con->window == NULL) {
1336 xcb_generic_error_t *err = NULL;
1337 xcb_get_property_cookie_t strut_cookie = xcb_get_property(conn, false, window, A__NET_WM_STRUT_PARTIAL,
1338 XCB_GET_PROPERTY_TYPE_ANY, 0, UINT32_MAX);
1339 prop = xcb_get_property_reply(conn, strut_cookie, &err);
1342 DLOG("got error when getting strut partial property: %d\n", err->error_code);
1352 DLOG("That is con %p / %s\n", con, con->name);
1354 window_update_strut_partial(con->window, prop);
1356 /* we only handle this change for dock clients */
1357 if (con->parent == NULL || con->parent->type != CT_DOCKAREA) {
1361 Con *search_at = croot;
1362 Con *output = con_get_output(con);
1363 if (output != NULL) {
1364 DLOG("Starting search at output %s\n", output->name);
1368 /* find out the desired position of this dock window */
1369 if (con->window->reserved.top > 0 && con->window->reserved.bottom == 0) {
1370 DLOG("Top dock client\n");
1371 con->window->dock = W_DOCK_TOP;
1372 } else if (con->window->reserved.top == 0 && con->window->reserved.bottom > 0) {
1373 DLOG("Bottom dock client\n");
1374 con->window->dock = W_DOCK_BOTTOM;
1376 DLOG("Ignoring invalid reserved edges (_NET_WM_STRUT_PARTIAL), using position as fallback:\n");
1377 if (con->geometry.y < (search_at->rect.height / 2)) {
1378 DLOG("geom->y = %d < rect.height / 2 = %d, it is a top dock client\n",
1379 con->geometry.y, (search_at->rect.height / 2));
1380 con->window->dock = W_DOCK_TOP;
1382 DLOG("geom->y = %d >= rect.height / 2 = %d, it is a bottom dock client\n",
1383 con->geometry.y, (search_at->rect.height / 2));
1384 con->window->dock = W_DOCK_BOTTOM;
1388 /* find the dockarea */
1389 Con *dockarea = con_for_window(search_at, con->window, NULL);
1390 assert(dockarea != NULL);
1392 /* attach the dock to the dock area */
1394 con->parent = dockarea;
1395 TAILQ_INSERT_HEAD(&(dockarea->focus_head), con, focused);
1396 TAILQ_INSERT_HEAD(&(dockarea->nodes_head), con, nodes);
1403 /* Returns false if the event could not be processed (e.g. the window could not
1404 * be found), true otherwise */
1405 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);
1407 struct property_handler_t {
1410 cb_property_handler_t cb;
1413 static struct property_handler_t property_handlers[] = {
1414 {0, 128, handle_windowname_change},
1415 {0, UINT_MAX, handle_hints},
1416 {0, 128, handle_windowname_change_legacy},
1417 {0, UINT_MAX, handle_normal_hints},
1418 {0, UINT_MAX, handle_clientleader_change},
1419 {0, UINT_MAX, handle_transient_for},
1420 {0, 128, handle_windowrole_change},
1421 {0, 128, handle_class_change},
1422 {0, UINT_MAX, handle_strut_partial_change},
1423 {0, UINT_MAX, handle_window_type},
1424 {0, 5 * sizeof(uint64_t), handle_motif_hints_change}};
1425 #define NUM_HANDLERS (sizeof(property_handlers) / sizeof(struct property_handler_t))
1428 * Sets the appropriate atoms for the property handlers after the atoms were
1432 void property_handlers_init(void) {
1433 sn_monitor_context_new(sndisplay, conn_screen, startup_monitor_event, NULL, NULL);
1435 property_handlers[0].atom = A__NET_WM_NAME;
1436 property_handlers[1].atom = XCB_ATOM_WM_HINTS;
1437 property_handlers[2].atom = XCB_ATOM_WM_NAME;
1438 property_handlers[3].atom = XCB_ATOM_WM_NORMAL_HINTS;
1439 property_handlers[4].atom = A_WM_CLIENT_LEADER;
1440 property_handlers[5].atom = XCB_ATOM_WM_TRANSIENT_FOR;
1441 property_handlers[6].atom = A_WM_WINDOW_ROLE;
1442 property_handlers[7].atom = XCB_ATOM_WM_CLASS;
1443 property_handlers[8].atom = A__NET_WM_STRUT_PARTIAL;
1444 property_handlers[9].atom = A__NET_WM_WINDOW_TYPE;
1445 property_handlers[10].atom = A__MOTIF_WM_HINTS;
1448 static void property_notify(uint8_t state, xcb_window_t window, xcb_atom_t atom) {
1449 struct property_handler_t *handler = NULL;
1450 xcb_get_property_reply_t *propr = NULL;
1452 for (size_t c = 0; c < sizeof(property_handlers) / sizeof(struct property_handler_t); c++) {
1453 if (property_handlers[c].atom != atom)
1456 handler = &property_handlers[c];
1460 if (handler == NULL) {
1461 //DLOG("Unhandled property notify for atom %d (0x%08x)\n", atom, atom);
1465 if (state != XCB_PROPERTY_DELETE) {
1466 xcb_get_property_cookie_t cookie = xcb_get_property(conn, 0, window, atom, XCB_GET_PROPERTY_TYPE_ANY, 0, handler->long_len);
1467 propr = xcb_get_property_reply(conn, cookie, 0);
1470 /* the handler will free() the reply unless it returns false */
1471 if (!handler->cb(NULL, conn, state, window, atom, propr))
1476 * Takes an xcb_generic_event_t and calls the appropriate handler, based on the
1480 void handle_event(int type, xcb_generic_event_t *event) {
1481 if (type != XCB_MOTION_NOTIFY)
1482 DLOG("event type %d, xkb_base %d\n", type, xkb_base);
1484 if (randr_base > -1 &&
1485 type == randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY) {
1486 handle_screen_change(event);
1490 if (xkb_base > -1 && type == xkb_base) {
1491 DLOG("xkb event, need to handle it.\n");
1493 xcb_xkb_state_notify_event_t *state = (xcb_xkb_state_notify_event_t *)event;
1494 if (state->xkbType == XCB_XKB_NEW_KEYBOARD_NOTIFY) {
1495 DLOG("xkb new keyboard notify, sequence %d, time %d\n", state->sequence, state->time);
1496 xcb_key_symbols_free(keysyms);
1497 keysyms = xcb_key_symbols_alloc(conn);
1498 if (((xcb_xkb_new_keyboard_notify_event_t *)event)->changed & XCB_XKB_NKN_DETAIL_KEYCODES)
1499 (void)load_keymap();
1500 ungrab_all_keys(conn);
1501 translate_keysyms();
1502 grab_all_keys(conn);
1503 } else if (state->xkbType == XCB_XKB_MAP_NOTIFY) {
1504 if (event_is_ignored(event->sequence, type)) {
1505 DLOG("Ignoring map notify event for sequence %d.\n", state->sequence);
1507 DLOG("xkb map notify, sequence %d, time %d\n", state->sequence, state->time);
1508 add_ignore_event(event->sequence, type);
1509 xcb_key_symbols_free(keysyms);
1510 keysyms = xcb_key_symbols_alloc(conn);
1511 ungrab_all_keys(conn);
1512 translate_keysyms();
1513 grab_all_keys(conn);
1514 (void)load_keymap();
1516 } else if (state->xkbType == XCB_XKB_STATE_NOTIFY) {
1517 DLOG("xkb state group = %d\n", state->group);
1518 if (xkb_current_group == state->group)
1520 xkb_current_group = state->group;
1521 ungrab_all_keys(conn);
1522 grab_all_keys(conn);
1530 case XCB_KEY_RELEASE:
1531 handle_key_press((xcb_key_press_event_t *)event);
1534 case XCB_BUTTON_PRESS:
1535 case XCB_BUTTON_RELEASE:
1536 handle_button_press((xcb_button_press_event_t *)event);
1539 case XCB_MAP_REQUEST:
1540 handle_map_request((xcb_map_request_event_t *)event);
1543 case XCB_UNMAP_NOTIFY:
1544 handle_unmap_notify_event((xcb_unmap_notify_event_t *)event);
1547 case XCB_DESTROY_NOTIFY:
1548 handle_destroy_notify_event((xcb_destroy_notify_event_t *)event);
1552 if (((xcb_expose_event_t *)event)->count == 0) {
1553 handle_expose_event((xcb_expose_event_t *)event);
1558 case XCB_MOTION_NOTIFY:
1559 handle_motion_notify((xcb_motion_notify_event_t *)event);
1562 /* Enter window = user moved their mouse over the window */
1563 case XCB_ENTER_NOTIFY:
1564 handle_enter_notify((xcb_enter_notify_event_t *)event);
1567 /* Client message are sent to the root window. The only interesting
1568 * client message for us is _NET_WM_STATE, we honour
1569 * _NET_WM_STATE_FULLSCREEN and _NET_WM_STATE_DEMANDS_ATTENTION */
1570 case XCB_CLIENT_MESSAGE:
1571 handle_client_message((xcb_client_message_event_t *)event);
1574 /* Configure request = window tried to change size on its own */
1575 case XCB_CONFIGURE_REQUEST:
1576 handle_configure_request((xcb_configure_request_event_t *)event);
1579 /* Mapping notify = keyboard mapping changed (Xmodmap), re-grab bindings */
1580 case XCB_MAPPING_NOTIFY:
1581 handle_mapping_notify((xcb_mapping_notify_event_t *)event);
1585 handle_focus_in((xcb_focus_in_event_t *)event);
1588 case XCB_PROPERTY_NOTIFY: {
1589 xcb_property_notify_event_t *e = (xcb_property_notify_event_t *)event;
1590 last_timestamp = e->time;
1591 property_notify(e->state, e->window, e->atom);
1595 case XCB_CONFIGURE_NOTIFY:
1596 handle_configure_notify((xcb_configure_notify_event_t *)event);
1600 //DLOG("Unhandled event of type %d\n", type);