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));
190 * When the user moves the mouse but does not change the active window
191 * (e.g. when having no windows opened but moving mouse on the root screen
192 * and crossing virtual screen boundaries), this callback gets called.
195 static void handle_motion_notify(xcb_motion_notify_event_t *event) {
196 last_timestamp = event->time;
198 /* Skip events where the pointer was over a child window, we are only
199 * interested in events on the root window. */
200 if (event->child != XCB_NONE)
204 if ((con = con_by_frame_id(event->event)) == NULL) {
205 DLOG("MotionNotify for an unknown container, checking if it crosses screen boundaries.\n");
206 check_crossing_screen_boundary(event->root_x, event->root_y);
210 if (config.disable_focus_follows_mouse)
213 if (con->layout != L_DEFAULT && con->layout != L_SPLITV && con->layout != L_SPLITH)
216 /* see over which rect the user is */
218 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
219 if (!rect_contains(current->deco_rect, event->event_x, event->event_y))
222 /* We found the rect, let’s see if this window is focused */
223 if (TAILQ_FIRST(&(con->focus_head)) == current)
227 x_push_changes(croot);
233 * Called when the keyboard mapping changes (for example by using Xmodmap),
234 * we need to update our key bindings then (re-translate symbols).
237 static void handle_mapping_notify(xcb_mapping_notify_event_t *event) {
238 if (event->request != XCB_MAPPING_KEYBOARD &&
239 event->request != XCB_MAPPING_MODIFIER)
242 DLOG("Received mapping_notify for keyboard or modifier mapping, re-grabbing keys\n");
243 xcb_refresh_keyboard_mapping(keysyms, event);
245 xcb_numlock_mask = aio_get_mod_mask_for(XCB_NUM_LOCK, keysyms);
247 ungrab_all_keys(conn);
253 * A new window appeared on the screen (=was mapped), so let’s manage it.
256 static void handle_map_request(xcb_map_request_event_t *event) {
257 xcb_get_window_attributes_cookie_t cookie;
259 cookie = xcb_get_window_attributes_unchecked(conn, event->window);
261 DLOG("window = 0x%08x, serial is %d.\n", event->window, event->sequence);
262 add_ignore_event(event->sequence, -1);
264 manage_window(event->window, cookie, false);
268 * Configure requests are received when the application wants to resize windows
271 * We generate a synthethic configure notify event to signalize the client its
275 static void handle_configure_request(xcb_configure_request_event_t *event) {
278 DLOG("window 0x%08x wants to be at %dx%d with %dx%d\n",
279 event->window, event->x, event->y, event->width, event->height);
281 /* For unmanaged windows, we just execute the configure request. As soon as
282 * it gets mapped, we will take over anyways. */
283 if ((con = con_by_window_id(event->window)) == NULL) {
284 DLOG("Configure request for unmanaged window, can do that.\n");
289 #define COPY_MASK_MEMBER(mask_member, event_member) \
291 if (event->value_mask & mask_member) { \
292 mask |= mask_member; \
293 values[c++] = event->event_member; \
297 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_X, x);
298 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_Y, y);
299 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_WIDTH, width);
300 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_HEIGHT, height);
301 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_BORDER_WIDTH, border_width);
302 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_SIBLING, sibling);
303 COPY_MASK_MEMBER(XCB_CONFIG_WINDOW_STACK_MODE, stack_mode);
305 xcb_configure_window(conn, event->window, mask, values);
311 DLOG("Configure request!\n");
313 Con *workspace = con_get_workspace(con);
314 if (workspace && (strcmp(workspace->name, "__i3_scratch") == 0)) {
315 DLOG("This is a scratchpad container, ignoring ConfigureRequest\n");
318 Con *fullscreen = con_get_fullscreen_covering_ws(workspace);
320 if (fullscreen != con && con_is_floating(con) && con_is_leaf(con)) {
321 /* find the height for the decorations */
322 int deco_height = con->deco_rect.height;
323 /* we actually need to apply the size/position changes to the *parent*
325 Rect bsr = con_border_style_rect(con);
326 if (con->border_style == BS_NORMAL) {
327 bsr.y += deco_height;
328 bsr.height -= deco_height;
330 Con *floatingcon = con->parent;
331 Rect newrect = floatingcon->rect;
333 if (event->value_mask & XCB_CONFIG_WINDOW_X) {
334 newrect.x = event->x + (-1) * bsr.x;
335 DLOG("proposed x = %d, new x is %d\n", event->x, newrect.x);
337 if (event->value_mask & XCB_CONFIG_WINDOW_Y) {
338 newrect.y = event->y + (-1) * bsr.y;
339 DLOG("proposed y = %d, new y is %d\n", event->y, newrect.y);
341 if (event->value_mask & XCB_CONFIG_WINDOW_WIDTH) {
342 newrect.width = event->width + (-1) * bsr.width;
343 newrect.width += con->border_width * 2;
344 DLOG("proposed width = %d, new width is %d (x11 border %d)\n",
345 event->width, newrect.width, con->border_width);
347 if (event->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
348 newrect.height = event->height + (-1) * bsr.height;
349 newrect.height += con->border_width * 2;
350 DLOG("proposed height = %d, new height is %d (x11 border %d)\n",
351 event->height, newrect.height, con->border_width);
354 DLOG("Container is a floating leaf node, will do that.\n");
355 floating_reposition(floatingcon, newrect);
359 /* Dock windows can be reconfigured in their height and moved to another output. */
360 if (con->parent && con->parent->type == CT_DOCKAREA) {
361 DLOG("Reconfiguring dock window (con = %p).\n", con);
362 if (event->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
363 DLOG("Dock client wants to change height to %d, we can do that.\n", event->height);
365 con->geometry.height = event->height;
369 if (event->value_mask & XCB_CONFIG_WINDOW_X || event->value_mask & XCB_CONFIG_WINDOW_Y) {
370 int16_t x = event->value_mask & XCB_CONFIG_WINDOW_X ? event->x : (int16_t)con->geometry.x;
371 int16_t y = event->value_mask & XCB_CONFIG_WINDOW_Y ? event->y : (int16_t)con->geometry.y;
373 Con *current_output = con_get_output(con);
374 Output *target = get_output_containing(x, y);
375 if (target != NULL && current_output != target->con) {
376 DLOG("Dock client is requested to be moved to output %s, moving it there.\n", output_primary_name(target));
378 Con *nc = con_for_window(target->con, con->window, &match);
379 DLOG("Dock client will be moved to container %p.\n", nc);
381 con_attach(con, nc, false);
385 DLOG("Dock client will not be moved, we only support moving it to another output.\n");
391 if (event->value_mask & XCB_CONFIG_WINDOW_STACK_MODE) {
392 DLOG("window 0x%08x wants to be stacked %d\n", event->window, event->stack_mode);
394 /* Emacs and IntelliJ Idea “request focus” by stacking their window
395 * above all others. */
396 if (event->stack_mode != XCB_STACK_MODE_ABOVE) {
397 DLOG("stack_mode != XCB_STACK_MODE_ABOVE, ignoring ConfigureRequest\n");
401 if (fullscreen || !con_is_leaf(con)) {
402 DLOG("fullscreen or not a leaf, ignoring ConfigureRequest\n");
406 if (workspace == NULL) {
407 DLOG("Window is not being managed, ignoring ConfigureRequest\n");
411 if (config.focus_on_window_activation == FOWA_FOCUS || (config.focus_on_window_activation == FOWA_SMART && workspace_is_visible(workspace))) {
412 DLOG("Focusing con = %p\n", con);
413 workspace_show(workspace);
416 } else if (config.focus_on_window_activation == FOWA_URGENT || (config.focus_on_window_activation == FOWA_SMART && !workspace_is_visible(workspace))) {
417 DLOG("Marking con = %p urgent\n", con);
418 con_set_urgency(con, true);
421 DLOG("Ignoring request for con = %p.\n", con);
426 fake_absolute_configure_notify(con);
430 * Gets triggered upon a RandR screen change event, that is when the user
431 * changes the screen configuration in any way (mode, position, …)
434 static void handle_screen_change(xcb_generic_event_t *e) {
435 DLOG("RandR screen change\n");
437 /* The geometry of the root window is used for “fullscreen global” and
438 * changes when new outputs are added. */
439 xcb_get_geometry_cookie_t cookie = xcb_get_geometry(conn, root);
440 xcb_get_geometry_reply_t *reply = xcb_get_geometry_reply(conn, cookie, NULL);
442 ELOG("Could not get geometry of the root window, exiting\n");
445 DLOG("root geometry reply: (%d, %d) %d x %d\n", reply->x, reply->y, reply->width, reply->height);
447 croot->rect.width = reply->width;
448 croot->rect.height = reply->height;
450 randr_query_outputs();
452 scratchpad_fix_resolution();
454 ipc_send_event("output", I3_IPC_EVENT_OUTPUT, "{\"change\":\"unspecified\"}");
458 * Our window decorations were unmapped. That means, the window will be killed
459 * now, so we better clean up before.
462 static void handle_unmap_notify_event(xcb_unmap_notify_event_t *event) {
463 DLOG("UnmapNotify for 0x%08x (received from 0x%08x), serial %d\n", event->window, event->event, event->sequence);
464 xcb_get_input_focus_cookie_t cookie;
465 Con *con = con_by_window_id(event->window);
467 /* This could also be an UnmapNotify for the frame. We need to
468 * decrement the ignore_unmap counter. */
469 con = con_by_frame_id(event->window);
471 LOG("Not a managed window, ignoring UnmapNotify event\n");
475 if (con->ignore_unmap > 0)
477 /* See the end of this function. */
478 cookie = xcb_get_input_focus(conn);
479 DLOG("ignore_unmap = %d for frame of container %p\n", con->ignore_unmap, con);
483 /* See the end of this function. */
484 cookie = xcb_get_input_focus(conn);
486 if (con->ignore_unmap > 0) {
487 DLOG("ignore_unmap = %d, dec\n", con->ignore_unmap);
492 /* Since we close the container, we need to unset _NET_WM_DESKTOP and
493 * _NET_WM_STATE according to the spec. */
494 xcb_delete_property(conn, event->window, A__NET_WM_DESKTOP);
495 xcb_delete_property(conn, event->window, A__NET_WM_STATE);
497 tree_close_internal(con, DONT_KILL_WINDOW, false);
501 /* If the client (as opposed to i3) destroyed or unmapped a window, an
502 * EnterNotify event will follow (indistinguishable from an EnterNotify
503 * event caused by moving your mouse), causing i3 to set focus to whichever
504 * window is now visible.
506 * In a complex stacked or tabbed layout (take two v-split containers in a
507 * tabbed container), when the bottom window in tab2 is closed, the bottom
508 * window of tab1 is visible instead. X11 will thus send an EnterNotify
509 * event for the bottom window of tab1, while the focus should be set to
510 * the remaining window of tab2.
512 * Therefore, we ignore all EnterNotify events which have the same sequence
513 * as an UnmapNotify event. */
514 add_ignore_event(event->sequence, XCB_ENTER_NOTIFY);
516 /* Since we just ignored the sequence of this UnmapNotify, we want to make
517 * sure that following events use a different sequence. When putting xterm
518 * into fullscreen and moving the pointer to a different window, without
519 * using GetInputFocus, subsequent (legitimate) EnterNotify events arrived
520 * with the same sequence and thus were ignored (see ticket #609). */
521 free(xcb_get_input_focus_reply(conn, cookie, NULL));
525 * A destroy notify event is sent when the window is not unmapped, but
526 * immediately destroyed (for example when starting a window and immediately
527 * killing the program which started it).
529 * We just pass on the event to the unmap notify handler (by copying the
530 * important fields in the event data structure).
533 static void handle_destroy_notify_event(xcb_destroy_notify_event_t *event) {
534 DLOG("destroy notify for 0x%08x, 0x%08x\n", event->event, event->window);
536 xcb_unmap_notify_event_t unmap;
537 unmap.sequence = event->sequence;
538 unmap.event = event->event;
539 unmap.window = event->window;
541 handle_unmap_notify_event(&unmap);
544 static bool window_name_changed(i3Window *window, char *old_name) {
545 if ((old_name == NULL) && (window->name == NULL))
548 /* Either the old or the new one is NULL, but not both. */
549 if ((old_name == NULL) ^ (window->name == NULL))
552 return (strcmp(old_name, i3string_as_utf8(window->name)) != 0);
556 * Called when a window changes its title
559 static bool handle_windowname_change(void *data, xcb_connection_t *conn, uint8_t state,
560 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
562 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
565 char *old_name = (con->window->name != NULL ? sstrdup(i3string_as_utf8(con->window->name)) : NULL);
567 window_update_name(con->window, prop, false);
569 x_push_changes(croot);
571 if (window_name_changed(con->window, old_name))
572 ipc_send_window_event("title", con);
580 * Handles legacy window name updates (WM_NAME), see also src/window.c,
581 * window_update_name_legacy().
584 static bool handle_windowname_change_legacy(void *data, xcb_connection_t *conn, uint8_t state,
585 xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop) {
587 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
590 char *old_name = (con->window->name != NULL ? sstrdup(i3string_as_utf8(con->window->name)) : NULL);
592 window_update_name_legacy(con->window, prop, false);
594 x_push_changes(croot);
596 if (window_name_changed(con->window, old_name))
597 ipc_send_window_event("title", con);
605 * Called when a window changes its WM_WINDOW_ROLE.
608 static bool handle_windowrole_change(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 window_update_role(con->window, prop, false);
620 * Expose event means we should redraw our windows (= title bar)
623 static void handle_expose_event(xcb_expose_event_t *event) {
626 DLOG("window = %08x\n", event->window);
628 if ((parent = con_by_frame_id(event->window)) == NULL) {
629 LOG("expose event for unknown window, ignoring\n");
633 /* Since we render to our surface on every change anyways, expose events
634 * only tell us that the X server lost (parts of) the window contents. */
635 draw_util_copy_surface(&(parent->frame_buffer), &(parent->frame),
636 0, 0, 0, 0, parent->rect.width, parent->rect.height);
640 #define _NET_WM_MOVERESIZE_SIZE_TOPLEFT 0
641 #define _NET_WM_MOVERESIZE_SIZE_TOP 1
642 #define _NET_WM_MOVERESIZE_SIZE_TOPRIGHT 2
643 #define _NET_WM_MOVERESIZE_SIZE_RIGHT 3
644 #define _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT 4
645 #define _NET_WM_MOVERESIZE_SIZE_BOTTOM 5
646 #define _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT 6
647 #define _NET_WM_MOVERESIZE_SIZE_LEFT 7
648 #define _NET_WM_MOVERESIZE_MOVE 8 /* movement only */
649 #define _NET_WM_MOVERESIZE_SIZE_KEYBOARD 9 /* size via keyboard */
650 #define _NET_WM_MOVERESIZE_MOVE_KEYBOARD 10 /* move via keyboard */
651 #define _NET_WM_MOVERESIZE_CANCEL 11 /* cancel operation */
653 #define _NET_MOVERESIZE_WINDOW_X (1 << 8)
654 #define _NET_MOVERESIZE_WINDOW_Y (1 << 9)
655 #define _NET_MOVERESIZE_WINDOW_WIDTH (1 << 10)
656 #define _NET_MOVERESIZE_WINDOW_HEIGHT (1 << 11)
659 * Handle client messages (EWMH)
662 static void handle_client_message(xcb_client_message_event_t *event) {
663 /* If this is a startup notification ClientMessage, the library will handle
664 * it and call our monitor_event() callback. */
665 if (sn_xcb_display_process_event(sndisplay, (xcb_generic_event_t *)event))
668 LOG("ClientMessage for window 0x%08x\n", event->window);
669 if (event->type == A__NET_WM_STATE) {
670 if (event->format != 32 ||
671 (event->data.data32[1] != A__NET_WM_STATE_FULLSCREEN &&
672 event->data.data32[1] != A__NET_WM_STATE_DEMANDS_ATTENTION &&
673 event->data.data32[1] != A__NET_WM_STATE_STICKY)) {
674 DLOG("Unknown atom in clientmessage of type %d\n", event->data.data32[1]);
678 Con *con = con_by_window_id(event->window);
680 DLOG("Could not get window for client message\n");
684 if (event->data.data32[1] == A__NET_WM_STATE_FULLSCREEN) {
685 /* Check if the fullscreen state should be toggled */
686 if ((con->fullscreen_mode != CF_NONE &&
687 (event->data.data32[0] == _NET_WM_STATE_REMOVE ||
688 event->data.data32[0] == _NET_WM_STATE_TOGGLE)) ||
689 (con->fullscreen_mode == CF_NONE &&
690 (event->data.data32[0] == _NET_WM_STATE_ADD ||
691 event->data.data32[0] == _NET_WM_STATE_TOGGLE))) {
692 DLOG("toggling fullscreen\n");
693 con_toggle_fullscreen(con, CF_OUTPUT);
695 } else if (event->data.data32[1] == A__NET_WM_STATE_DEMANDS_ATTENTION) {
696 /* Check if the urgent flag must be set or not */
697 if (event->data.data32[0] == _NET_WM_STATE_ADD)
698 con_set_urgency(con, true);
699 else if (event->data.data32[0] == _NET_WM_STATE_REMOVE)
700 con_set_urgency(con, false);
701 else if (event->data.data32[0] == _NET_WM_STATE_TOGGLE)
702 con_set_urgency(con, !con->urgent);
703 } else if (event->data.data32[1] == A__NET_WM_STATE_STICKY) {
704 DLOG("Received a client message to modify _NET_WM_STATE_STICKY.\n");
705 if (event->data.data32[0] == _NET_WM_STATE_ADD)
707 else if (event->data.data32[0] == _NET_WM_STATE_REMOVE)
709 else if (event->data.data32[0] == _NET_WM_STATE_TOGGLE)
710 con->sticky = !con->sticky;
712 DLOG("New sticky status for con = %p is %i.\n", con, con->sticky);
713 ewmh_update_sticky(con->window->id, con->sticky);
714 output_push_sticky_windows(focused);
715 ewmh_update_wm_desktop();
719 } else if (event->type == A__NET_ACTIVE_WINDOW) {
720 if (event->format != 32)
723 DLOG("_NET_ACTIVE_WINDOW: Window 0x%08x should be activated\n", event->window);
725 Con *con = con_by_window_id(event->window);
727 DLOG("Could not get window for client message\n");
731 Con *ws = con_get_workspace(con);
733 DLOG("Window is not being managed, ignoring _NET_ACTIVE_WINDOW\n");
737 if (con_is_internal(ws) && ws != workspace_get("__i3_scratch", NULL)) {
738 DLOG("Workspace is internal but not scratchpad, ignoring _NET_ACTIVE_WINDOW\n");
742 /* data32[0] indicates the source of the request (application or pager) */
743 if (event->data.data32[0] == 2) {
744 /* Always focus the con if it is from a pager, because this is most
745 * likely from some user action */
746 DLOG("This request came from a pager. Focusing con = %p\n", con);
748 if (con_is_internal(ws)) {
749 scratchpad_show(con);
752 /* Re-set focus, even if unchanged from i3’s perspective. */
753 focused_id = XCB_NONE;
757 /* Request is from an application. */
758 if (con_is_internal(ws)) {
759 DLOG("Ignoring request to make con = %p active because it's on an internal workspace.\n", con);
763 if (config.focus_on_window_activation == FOWA_FOCUS || (config.focus_on_window_activation == FOWA_SMART && workspace_is_visible(ws))) {
764 DLOG("Focusing con = %p\n", con);
767 } else if (config.focus_on_window_activation == FOWA_URGENT || (config.focus_on_window_activation == FOWA_SMART && !workspace_is_visible(ws))) {
768 DLOG("Marking con = %p urgent\n", con);
769 con_set_urgency(con, true);
771 DLOG("Ignoring request for con = %p.\n", con);
775 } else if (event->type == A_I3_SYNC) {
776 xcb_window_t window = event->data.data32[0];
777 uint32_t rnd = event->data.data32[1];
778 sync_respond(window, rnd);
779 } else if (event->type == A__NET_REQUEST_FRAME_EXTENTS) {
781 * A client can request an estimate for the frame size which the window
782 * manager will put around it before actually mapping its window. Java
783 * does this (as of openjdk-7).
785 * Note that the calculation below is not entirely accurate — once you
786 * set a different border type, it’s off. We _could_ request all the
787 * window properties (which have to be set up at this point according
788 * to EWMH), but that seems rather elaborate. The standard explicitly
789 * says the application must cope with an estimate that is not entirely
792 DLOG("_NET_REQUEST_FRAME_EXTENTS for window 0x%08x\n", event->window);
794 /* The reply data: approximate frame size */
796 config.default_border_width, /* left */
797 config.default_border_width, /* right */
798 render_deco_height(), /* top */
799 config.default_border_width /* bottom */
803 XCB_PROP_MODE_REPLACE,
805 A__NET_FRAME_EXTENTS,
806 XCB_ATOM_CARDINAL, 32, 4,
809 } else if (event->type == A_WM_CHANGE_STATE) {
810 /* http://tronche.com/gui/x/icccm/sec-4.html#s-4.1.4 */
811 if (event->data.data32[0] == XCB_ICCCM_WM_STATE_ICONIC) {
812 /* For compatiblity reasons, Wine will request iconic state and cannot ensure that the WM has agreed on it;
813 * immediately revert to normal to avoid being stuck in a paused state. */
814 DLOG("Client has requested iconic state, rejecting. (window = %d)\n", event->window);
815 long data[] = {XCB_ICCCM_WM_STATE_NORMAL, XCB_NONE};
816 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, event->window,
817 A_WM_STATE, A_WM_STATE, 32, 2, data);
819 DLOG("Not handling WM_CHANGE_STATE request. (window = %d, state = %d)\n", event->window, event->data.data32[0]);
821 } else if (event->type == A__NET_CURRENT_DESKTOP) {
822 /* This request is used by pagers and bars to change the current
823 * desktop likely as a result of some user action. We interpret this as
824 * a request to focus the given workspace. See
825 * https://standards.freedesktop.org/wm-spec/latest/ar01s03.html#idm140251368135008
827 DLOG("Request to change current desktop to index %d\n", event->data.data32[0]);
828 Con *ws = ewmh_get_workspace_by_index(event->data.data32[0]);
830 ELOG("Could not determine workspace for this index, ignoring request.\n");
834 DLOG("Handling request to focus workspace %s\n", ws->name);
837 } else if (event->type == A__NET_WM_DESKTOP) {
838 uint32_t index = event->data.data32[0];
839 DLOG("Request to move window %d to EWMH desktop index %d\n", event->window, index);
841 Con *con = con_by_window_id(event->window);
843 DLOG("Couldn't find con for window %d, ignoring the request.\n", event->window);
847 if (index == NET_WM_DESKTOP_ALL) {
848 /* The window is requesting to be visible on all workspaces, so
849 * let's float it and make it sticky. */
850 DLOG("The window was requested to be visible on all workspaces, making it sticky and floating.\n");
852 floating_enable(con, false);
855 ewmh_update_sticky(con->window->id, true);
856 output_push_sticky_windows(focused);
858 Con *ws = ewmh_get_workspace_by_index(index);
860 ELOG("Could not determine workspace for this index, ignoring request.\n");
864 con_move_to_workspace(con, ws, true, false, false);
868 ewmh_update_wm_desktop();
869 } else if (event->type == A__NET_CLOSE_WINDOW) {
871 * Pagers wanting to close a window MUST send a _NET_CLOSE_WINDOW
872 * client message request to the root window.
873 * https://standards.freedesktop.org/wm-spec/wm-spec-latest.html#idm140200472668896
875 Con *con = con_by_window_id(event->window);
877 DLOG("Handling _NET_CLOSE_WINDOW request (con = %p)\n", con);
879 if (event->data.data32[0])
880 last_timestamp = event->data.data32[0];
882 tree_close_internal(con, KILL_WINDOW, false);
885 DLOG("Couldn't find con for _NET_CLOSE_WINDOW request. (window = %d)\n", event->window);
887 } else if (event->type == A__NET_WM_MOVERESIZE) {
889 * Client-side decorated Gtk3 windows emit this signal when being
890 * dragged by their GtkHeaderBar
892 Con *con = con_by_window_id(event->window);
893 if (!con || !con_is_floating(con)) {
894 DLOG("Couldn't find con for _NET_WM_MOVERESIZE request, or con not floating (window = %d)\n", event->window);
897 DLOG("Handling _NET_WM_MOVERESIZE request (con = %p)\n", con);
898 uint32_t direction = event->data.data32[2];
899 uint32_t x_root = event->data.data32[0];
900 uint32_t y_root = event->data.data32[1];
901 /* construct fake xcb_button_press_event_t */
902 xcb_button_press_event_t fake = {
905 .event_x = x_root - (con->rect.x),
906 .event_y = y_root - (con->rect.y)};
908 case _NET_WM_MOVERESIZE_MOVE:
909 floating_drag_window(con->parent, &fake);
911 case _NET_WM_MOVERESIZE_SIZE_TOPLEFT ... _NET_WM_MOVERESIZE_SIZE_LEFT:
912 floating_resize_window(con->parent, false, &fake);
915 DLOG("_NET_WM_MOVERESIZE direction %d not implemented\n", direction);
918 } else if (event->type == A__NET_MOVERESIZE_WINDOW) {
919 DLOG("Received _NET_MOVE_RESIZE_WINDOW. Handling by faking a configure request.\n");
921 void *_generated_event = scalloc(32, 1);
922 xcb_configure_request_event_t *generated_event = _generated_event;
924 generated_event->window = event->window;
925 generated_event->response_type = XCB_CONFIGURE_REQUEST;
927 generated_event->value_mask = 0;
928 if (event->data.data32[0] & _NET_MOVERESIZE_WINDOW_X) {
929 generated_event->value_mask |= XCB_CONFIG_WINDOW_X;
930 generated_event->x = event->data.data32[1];
932 if (event->data.data32[0] & _NET_MOVERESIZE_WINDOW_Y) {
933 generated_event->value_mask |= XCB_CONFIG_WINDOW_Y;
934 generated_event->y = event->data.data32[2];
936 if (event->data.data32[0] & _NET_MOVERESIZE_WINDOW_WIDTH) {
937 generated_event->value_mask |= XCB_CONFIG_WINDOW_WIDTH;
938 generated_event->width = event->data.data32[3];
940 if (event->data.data32[0] & _NET_MOVERESIZE_WINDOW_HEIGHT) {
941 generated_event->value_mask |= XCB_CONFIG_WINDOW_HEIGHT;
942 generated_event->height = event->data.data32[4];
945 handle_configure_request(generated_event);
946 FREE(generated_event);
948 DLOG("Skipping client message for unhandled type %d\n", event->type);
952 static bool handle_window_type(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
953 xcb_atom_t atom, xcb_get_property_reply_t *reply) {
955 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
958 window_update_type(con->window, reply);
963 * Handles the size hints set by a window, but currently only the part necessary for displaying
964 * clients proportionally inside their frames (mplayer for example)
966 * See ICCCM 4.1.2.3 for more details
969 static bool handle_normal_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
970 xcb_atom_t name, xcb_get_property_reply_t *reply) {
971 Con *con = con_by_window_id(window);
973 DLOG("Received WM_NORMAL_HINTS for unknown client\n");
977 xcb_size_hints_t size_hints;
979 /* If the hints were already in this event, use them, if not, request them */
981 xcb_icccm_get_wm_size_hints_from_reply(&size_hints, reply);
983 xcb_icccm_get_wm_normal_hints_reply(conn, xcb_icccm_get_wm_normal_hints_unchecked(conn, con->window->id), &size_hints, NULL);
986 int win_width = con->window_rect.width;
987 int win_height = con->window_rect.height;
989 if ((size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MIN_SIZE)) {
990 DLOG("Minimum size: %d (width) x %d (height)\n", size_hints.min_width, size_hints.min_height);
992 con->window->min_width = size_hints.min_width;
993 con->window->min_height = size_hints.min_height;
996 if ((size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MAX_SIZE)) {
997 DLOG("Maximum size: %d (width) x %d (height)\n", size_hints.max_width, size_hints.max_height);
999 con->window->max_width = size_hints.max_width;
1000 con->window->max_height = size_hints.max_height;
1003 if (con_is_floating(con)) {
1004 win_width = MAX(win_width, con->window->min_width);
1005 win_height = MAX(win_height, con->window->min_height);
1006 win_width = MIN(win_width, con->window->max_width);
1007 win_height = MIN(win_height, con->window->max_height);
1010 bool changed = false;
1011 if ((size_hints.flags & XCB_ICCCM_SIZE_HINT_P_RESIZE_INC)) {
1012 if (size_hints.width_inc > 0 && size_hints.width_inc < 0xFFFF) {
1013 if (con->window->width_increment != size_hints.width_inc) {
1014 con->window->width_increment = size_hints.width_inc;
1019 if (size_hints.height_inc > 0 && size_hints.height_inc < 0xFFFF) {
1020 if (con->window->height_increment != size_hints.height_inc) {
1021 con->window->height_increment = size_hints.height_inc;
1027 DLOG("resize increments changed\n");
1031 bool has_base_size = false;
1033 int base_height = 0;
1035 /* The base width / height is the desired size of the window. */
1036 if (size_hints.flags & XCB_ICCCM_SIZE_HINT_BASE_SIZE) {
1037 base_width = size_hints.base_width;
1038 base_height = size_hints.base_height;
1039 has_base_size = true;
1042 /* If the window didn't specify a base size, the ICCCM tells us to fall
1043 * back to the minimum size instead, if available. */
1044 if (!has_base_size && size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MIN_SIZE) {
1045 base_width = size_hints.min_width;
1046 base_height = size_hints.min_height;
1049 // TODO XXX Should we only do this is the base size is > 0?
1050 if (base_width != con->window->base_width || base_height != con->window->base_height) {
1051 con->window->base_width = base_width;
1052 con->window->base_height = base_height;
1054 DLOG("client's base_height changed to %d\n", base_height);
1055 DLOG("client's base_width changed to %d\n", base_width);
1059 /* If no aspect ratio was set or if it was invalid, we ignore the hints */
1060 if (!(size_hints.flags & XCB_ICCCM_SIZE_HINT_P_ASPECT) ||
1061 (size_hints.min_aspect_num <= 0) ||
1062 (size_hints.min_aspect_den <= 0)) {
1063 goto render_and_return;
1066 /* The ICCCM says to subtract the base size from the window size for aspect
1067 * ratio calculations. However, unlike determining the base size itself we
1068 * must not fall back to using the minimum size in this case according to
1070 double width = win_width - base_width * has_base_size;
1071 double height = win_height - base_height * has_base_size;
1073 /* Convert numerator/denominator to a double */
1074 double min_aspect = (double)size_hints.min_aspect_num / size_hints.min_aspect_den;
1075 double max_aspect = (double)size_hints.max_aspect_num / size_hints.max_aspect_den;
1077 DLOG("Aspect ratio set: minimum %f, maximum %f\n", min_aspect, max_aspect);
1078 DLOG("width = %f, height = %f\n", width, height);
1080 /* Sanity checks, this is user-input, in a way */
1081 if (max_aspect <= 0 || min_aspect <= 0 || height == 0 || (width / height) <= 0) {
1082 goto render_and_return;
1085 /* Check if we need to set proportional_* variables using the correct ratio */
1086 double aspect_ratio = 0.0;
1087 if ((width / height) < min_aspect) {
1088 aspect_ratio = min_aspect;
1089 } else if ((width / height) > max_aspect) {
1090 aspect_ratio = max_aspect;
1092 goto render_and_return;
1095 if (fabs(con->window->aspect_ratio - aspect_ratio) > DBL_EPSILON) {
1096 con->window->aspect_ratio = aspect_ratio;
1110 * Handles the WM_HINTS property for extracting the urgency state of the window.
1113 static bool handle_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1114 xcb_atom_t name, xcb_get_property_reply_t *reply) {
1115 Con *con = con_by_window_id(window);
1117 DLOG("Received WM_HINTS for unknown client\n");
1123 reply = xcb_get_property_reply(conn, xcb_icccm_get_wm_hints(conn, window), NULL);
1124 window_update_hints(con->window, reply, &urgency_hint);
1125 con_set_urgency(con, urgency_hint);
1132 * Handles the transient for hints set by a window, signalizing that this window is a popup window
1133 * for some other window.
1135 * See ICCCM 4.1.2.6 for more details
1138 static bool handle_transient_for(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1139 xcb_atom_t name, xcb_get_property_reply_t *prop) {
1142 if ((con = con_by_window_id(window)) == NULL || con->window == NULL) {
1143 DLOG("No such window\n");
1148 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn, false, window, XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 0, 32),
1154 window_update_transient_for(con->window, prop);
1160 * Handles changes of the WM_CLIENT_LEADER atom which specifies if this is a
1161 * toolwindow (or similar) and to which window it belongs (logical parent).
1164 static bool handle_clientleader_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1165 xcb_atom_t name, xcb_get_property_reply_t *prop) {
1167 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
1171 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn, false, window, A_WM_CLIENT_LEADER, XCB_ATOM_WINDOW, 0, 32),
1177 window_update_leader(con->window, prop);
1183 * Handles FocusIn events which are generated by clients (i3’s focus changes
1184 * don’t generate FocusIn events due to a different EventMask) and updates the
1185 * decorations accordingly.
1188 static void handle_focus_in(xcb_focus_in_event_t *event) {
1189 DLOG("focus change in, for window 0x%08x\n", event->event);
1191 if (event->event == root) {
1192 DLOG("Received focus in for root window, refocusing the focused window.\n");
1194 focused_id = XCB_NONE;
1195 x_push_changes(croot);
1199 if ((con = con_by_window_id(event->event)) == NULL || con->window == NULL)
1201 DLOG("That is con %p / %s\n", con, con->name);
1203 if (event->mode == XCB_NOTIFY_MODE_GRAB ||
1204 event->mode == XCB_NOTIFY_MODE_UNGRAB) {
1205 DLOG("FocusIn event for grab/ungrab, ignoring\n");
1209 if (event->detail == XCB_NOTIFY_DETAIL_POINTER) {
1210 DLOG("notify detail is pointer, ignoring this event\n");
1214 /* Floating windows should be refocused to ensure that they are on top of
1216 if (focused_id == event->event && !con_inside_floating(con)) {
1217 DLOG("focus matches the currently focused window, not doing anything\n");
1221 /* Skip dock clients, they cannot get the i3 focus. */
1222 if (con->parent->type == CT_DOCKAREA) {
1223 DLOG("This is a dock client, not focusing.\n");
1227 DLOG("focus is different / refocusing floating window: updating decorations\n");
1229 /* Get the currently focused workspace to check if the focus change also
1230 * involves changing workspaces. If so, we need to call workspace_show() to
1231 * correctly update state and send the IPC event. */
1232 Con *ws = con_get_workspace(con);
1233 if (ws != con_get_workspace(focused))
1237 /* We update focused_id because we don’t need to set focus again */
1238 focused_id = event->event;
1243 * Handles ConfigureNotify events for the root window, which are generated when
1244 * the monitor configuration changed.
1247 static void handle_configure_notify(xcb_configure_notify_event_t *event) {
1248 if (event->event != root) {
1249 DLOG("ConfigureNotify for non-root window 0x%08x, ignoring\n", event->event);
1252 DLOG("ConfigureNotify for root window 0x%08x\n", event->event);
1254 if (force_xinerama) {
1257 randr_query_outputs();
1261 * Handles the WM_CLASS property for assignments and criteria selection.
1264 static bool handle_class_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1265 xcb_atom_t name, xcb_get_property_reply_t *prop) {
1267 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
1271 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn, false, window, XCB_ATOM_WM_CLASS, XCB_ATOM_STRING, 0, 32),
1278 window_update_class(con->window, prop, false);
1284 * Handles the _MOTIF_WM_HINTS property of specifing window deocration settings.
1287 static bool handle_motif_hints_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1288 xcb_atom_t name, xcb_get_property_reply_t *prop) {
1290 if ((con = con_by_window_id(window)) == NULL || con->window == NULL)
1294 prop = xcb_get_property_reply(conn, xcb_get_property_unchecked(conn, false, window, A__MOTIF_WM_HINTS, XCB_GET_PROPERTY_TYPE_ANY, 0, 5 * sizeof(uint64_t)),
1301 border_style_t motif_border_style;
1302 window_update_motif_hints(con->window, prop, &motif_border_style);
1304 if (motif_border_style != con->border_style && motif_border_style != BS_NORMAL) {
1305 DLOG("Update border style of con %p to %d\n", con, motif_border_style);
1306 con_set_border_style(con, motif_border_style, con->current_border_width);
1308 x_push_changes(croot);
1315 * Handles the _NET_WM_STRUT_PARTIAL property for allocating space for dock clients.
1318 static bool handle_strut_partial_change(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
1319 xcb_atom_t name, xcb_get_property_reply_t *prop) {
1320 DLOG("strut partial change for window 0x%08x\n", window);
1323 if ((con = con_by_window_id(window)) == NULL || con->window == NULL) {
1328 xcb_generic_error_t *err = NULL;
1329 xcb_get_property_cookie_t strut_cookie = xcb_get_property(conn, false, window, A__NET_WM_STRUT_PARTIAL,
1330 XCB_GET_PROPERTY_TYPE_ANY, 0, UINT32_MAX);
1331 prop = xcb_get_property_reply(conn, strut_cookie, &err);
1334 DLOG("got error when getting strut partial property: %d\n", err->error_code);
1344 DLOG("That is con %p / %s\n", con, con->name);
1346 window_update_strut_partial(con->window, prop);
1348 /* we only handle this change for dock clients */
1349 if (con->parent == NULL || con->parent->type != CT_DOCKAREA) {
1353 Con *search_at = croot;
1354 Con *output = con_get_output(con);
1355 if (output != NULL) {
1356 DLOG("Starting search at output %s\n", output->name);
1360 /* find out the desired position of this dock window */
1361 if (con->window->reserved.top > 0 && con->window->reserved.bottom == 0) {
1362 DLOG("Top dock client\n");
1363 con->window->dock = W_DOCK_TOP;
1364 } else if (con->window->reserved.top == 0 && con->window->reserved.bottom > 0) {
1365 DLOG("Bottom dock client\n");
1366 con->window->dock = W_DOCK_BOTTOM;
1368 DLOG("Ignoring invalid reserved edges (_NET_WM_STRUT_PARTIAL), using position as fallback:\n");
1369 if (con->geometry.y < (search_at->rect.height / 2)) {
1370 DLOG("geom->y = %d < rect.height / 2 = %d, it is a top dock client\n",
1371 con->geometry.y, (search_at->rect.height / 2));
1372 con->window->dock = W_DOCK_TOP;
1374 DLOG("geom->y = %d >= rect.height / 2 = %d, it is a bottom dock client\n",
1375 con->geometry.y, (search_at->rect.height / 2));
1376 con->window->dock = W_DOCK_BOTTOM;
1380 /* find the dockarea */
1381 Con *dockarea = con_for_window(search_at, con->window, NULL);
1382 assert(dockarea != NULL);
1384 /* attach the dock to the dock area */
1386 con->parent = dockarea;
1387 TAILQ_INSERT_HEAD(&(dockarea->focus_head), con, focused);
1388 TAILQ_INSERT_HEAD(&(dockarea->nodes_head), con, nodes);
1395 /* Returns false if the event could not be processed (e.g. the window could not
1396 * be found), true otherwise */
1397 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);
1399 struct property_handler_t {
1402 cb_property_handler_t cb;
1405 static struct property_handler_t property_handlers[] = {
1406 {0, 128, handle_windowname_change},
1407 {0, UINT_MAX, handle_hints},
1408 {0, 128, handle_windowname_change_legacy},
1409 {0, UINT_MAX, handle_normal_hints},
1410 {0, UINT_MAX, handle_clientleader_change},
1411 {0, UINT_MAX, handle_transient_for},
1412 {0, 128, handle_windowrole_change},
1413 {0, 128, handle_class_change},
1414 {0, UINT_MAX, handle_strut_partial_change},
1415 {0, UINT_MAX, handle_window_type},
1416 {0, 5 * sizeof(uint64_t), handle_motif_hints_change}};
1417 #define NUM_HANDLERS (sizeof(property_handlers) / sizeof(struct property_handler_t))
1420 * Sets the appropriate atoms for the property handlers after the atoms were
1424 void property_handlers_init(void) {
1425 sn_monitor_context_new(sndisplay, conn_screen, startup_monitor_event, NULL, NULL);
1427 property_handlers[0].atom = A__NET_WM_NAME;
1428 property_handlers[1].atom = XCB_ATOM_WM_HINTS;
1429 property_handlers[2].atom = XCB_ATOM_WM_NAME;
1430 property_handlers[3].atom = XCB_ATOM_WM_NORMAL_HINTS;
1431 property_handlers[4].atom = A_WM_CLIENT_LEADER;
1432 property_handlers[5].atom = XCB_ATOM_WM_TRANSIENT_FOR;
1433 property_handlers[6].atom = A_WM_WINDOW_ROLE;
1434 property_handlers[7].atom = XCB_ATOM_WM_CLASS;
1435 property_handlers[8].atom = A__NET_WM_STRUT_PARTIAL;
1436 property_handlers[9].atom = A__NET_WM_WINDOW_TYPE;
1437 property_handlers[10].atom = A__MOTIF_WM_HINTS;
1440 static void property_notify(uint8_t state, xcb_window_t window, xcb_atom_t atom) {
1441 struct property_handler_t *handler = NULL;
1442 xcb_get_property_reply_t *propr = NULL;
1444 for (size_t c = 0; c < NUM_HANDLERS; c++) {
1445 if (property_handlers[c].atom != atom)
1448 handler = &property_handlers[c];
1452 if (handler == NULL) {
1453 //DLOG("Unhandled property notify for atom %d (0x%08x)\n", atom, atom);
1457 if (state != XCB_PROPERTY_DELETE) {
1458 xcb_get_property_cookie_t cookie = xcb_get_property(conn, 0, window, atom, XCB_GET_PROPERTY_TYPE_ANY, 0, handler->long_len);
1459 propr = xcb_get_property_reply(conn, cookie, 0);
1462 /* the handler will free() the reply unless it returns false */
1463 if (!handler->cb(NULL, conn, state, window, atom, propr))
1468 * Takes an xcb_generic_event_t and calls the appropriate handler, based on the
1472 void handle_event(int type, xcb_generic_event_t *event) {
1473 if (type != XCB_MOTION_NOTIFY)
1474 DLOG("event type %d, xkb_base %d\n", type, xkb_base);
1476 if (randr_base > -1 &&
1477 type == randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY) {
1478 handle_screen_change(event);
1482 if (xkb_base > -1 && type == xkb_base) {
1483 DLOG("xkb event, need to handle it.\n");
1485 xcb_xkb_state_notify_event_t *state = (xcb_xkb_state_notify_event_t *)event;
1486 if (state->xkbType == XCB_XKB_NEW_KEYBOARD_NOTIFY) {
1487 DLOG("xkb new keyboard notify, sequence %d, time %d\n", state->sequence, state->time);
1488 xcb_key_symbols_free(keysyms);
1489 keysyms = xcb_key_symbols_alloc(conn);
1490 if (((xcb_xkb_new_keyboard_notify_event_t *)event)->changed & XCB_XKB_NKN_DETAIL_KEYCODES)
1491 (void)load_keymap();
1492 ungrab_all_keys(conn);
1493 translate_keysyms();
1494 grab_all_keys(conn);
1495 } else if (state->xkbType == XCB_XKB_MAP_NOTIFY) {
1496 if (event_is_ignored(event->sequence, type)) {
1497 DLOG("Ignoring map notify event for sequence %d.\n", state->sequence);
1499 DLOG("xkb map notify, sequence %d, time %d\n", state->sequence, state->time);
1500 add_ignore_event(event->sequence, type);
1501 xcb_key_symbols_free(keysyms);
1502 keysyms = xcb_key_symbols_alloc(conn);
1503 ungrab_all_keys(conn);
1504 translate_keysyms();
1505 grab_all_keys(conn);
1506 (void)load_keymap();
1508 } else if (state->xkbType == XCB_XKB_STATE_NOTIFY) {
1509 DLOG("xkb state group = %d\n", state->group);
1510 if (xkb_current_group == state->group)
1512 xkb_current_group = state->group;
1513 ungrab_all_keys(conn);
1514 grab_all_keys(conn);
1522 case XCB_KEY_RELEASE:
1523 handle_key_press((xcb_key_press_event_t *)event);
1526 case XCB_BUTTON_PRESS:
1527 case XCB_BUTTON_RELEASE:
1528 handle_button_press((xcb_button_press_event_t *)event);
1531 case XCB_MAP_REQUEST:
1532 handle_map_request((xcb_map_request_event_t *)event);
1535 case XCB_UNMAP_NOTIFY:
1536 handle_unmap_notify_event((xcb_unmap_notify_event_t *)event);
1539 case XCB_DESTROY_NOTIFY:
1540 handle_destroy_notify_event((xcb_destroy_notify_event_t *)event);
1544 if (((xcb_expose_event_t *)event)->count == 0) {
1545 handle_expose_event((xcb_expose_event_t *)event);
1550 case XCB_MOTION_NOTIFY:
1551 handle_motion_notify((xcb_motion_notify_event_t *)event);
1554 /* Enter window = user moved their mouse over the window */
1555 case XCB_ENTER_NOTIFY:
1556 handle_enter_notify((xcb_enter_notify_event_t *)event);
1559 /* Client message are sent to the root window. The only interesting
1560 * client message for us is _NET_WM_STATE, we honour
1561 * _NET_WM_STATE_FULLSCREEN and _NET_WM_STATE_DEMANDS_ATTENTION */
1562 case XCB_CLIENT_MESSAGE:
1563 handle_client_message((xcb_client_message_event_t *)event);
1566 /* Configure request = window tried to change size on its own */
1567 case XCB_CONFIGURE_REQUEST:
1568 handle_configure_request((xcb_configure_request_event_t *)event);
1571 /* Mapping notify = keyboard mapping changed (Xmodmap), re-grab bindings */
1572 case XCB_MAPPING_NOTIFY:
1573 handle_mapping_notify((xcb_mapping_notify_event_t *)event);
1577 handle_focus_in((xcb_focus_in_event_t *)event);
1580 case XCB_PROPERTY_NOTIFY: {
1581 xcb_property_notify_event_t *e = (xcb_property_notify_event_t *)event;
1582 last_timestamp = e->time;
1583 property_notify(e->state, e->window, e->atom);
1587 case XCB_CONFIGURE_NOTIFY:
1588 handle_configure_notify((xcb_configure_notify_event_t *)event);
1592 //DLOG("Unhandled event of type %d\n", type);