+static xcb_connection_t *conn;
+static xcb_ewmh_connection_t ewmh;
+static xcb_key_symbols_t *keysyms;
+static xcb_colormap_t colormap;
+static xcb_window_t root;
+static xcb_event_mask_t events;
+static list_t *screens;
+static list_t *struts;
+static void *cache;
+static unsigned int grabbed;
+static int running;
+static xcb_window_t control;
+
+static xcb_pixmap_t clr_focus;
+static xcb_pixmap_t clr_unfocus;
+static xcb_pixmap_t clr_urgent;
+
+static xcb_atom_t wm_protos;
+static xcb_atom_t wm_delete;
+static xcb_atom_t wm_nhints;
+
+/************************
+ * Conversion functions *
+ ************************/
+
+/* State names */
+static char *state_map[] = {
+ [ST_HIDE ] "hide ",
+ [ST_SHOW ] "show ",
+ [ST_FULL ] "full ",
+ [ST_MAX ] "max ",
+ [ST_SHADE] "shade",
+ [ST_ICON ] "icon ",
+ [ST_CLOSE] "close",
+};
+
+/* Key presses */
+static struct {
+ event_t ev;
+ xcb_keysym_t sym;
+} keysym_map[] = {
+ { EV_LEFT, 0xFF51 },
+ { EV_RIGHT, 0xFF53 },
+ { EV_UP, 0xFF52 },
+ { EV_DOWN, 0xFF54 },
+ { EV_HOME, 0xFF50 },
+ { EV_END, 0xFF57 },
+ { EV_PAGEUP, 0xFF55 },
+ { EV_PAGEDOWN, 0xFF56 },
+ { EV_F1, 0xFFBE },
+ { EV_F2, 0xFFBF },
+ { EV_F3, 0xFFC0 },
+ { EV_F4, 0xFFC1 },
+ { EV_F5, 0xFFC2 },
+ { EV_F6, 0xFFC3 },
+ { EV_F7, 0xFFC4 },
+ { EV_F8, 0xFFC5 },
+ { EV_F9, 0xFFC6 },
+ { EV_F10, 0xFFC7 },
+ { EV_F11, 0xFFC8 },
+ { EV_F12, 0xFFC9 },
+};
+
+/************************
+ * Conversion functions *
+ ************************/
+
+static xcb_keycode_t *event_to_keycodes(event_t ev)
+{
+ xcb_keycode_t *codes = NULL;
+
+ /* Get keysym */
+ xcb_keysym_t keysym = map_get(keysym_map, ev, ev, sym, ev);
+
+ /* Get keycodes */
+ if (!(codes = xcb_key_symbols_get_keycode(keysyms, keysym)))
+ warn("no keycode found for %d->%d", ev, keysym);
+
+ return codes;
+}
+
+static event_t keycode_to_event(xcb_keycode_t code)
+{
+ /* Get keysym */
+ xcb_keysym_t keysym = xcb_key_symbols_get_keysym(keysyms, code, 0);
+
+ /* Get event */
+ return map_get(keysym_map, sym,keysym, ev,keysym);
+}
+
+/* Button presses */
+static event_t button_to_event(xcb_button_t btn)
+{
+ return EV_MOUSE0 + btn;
+}
+
+static xcb_button_t event_to_button(event_t ev)
+{
+ return ev - EV_MOUSE0;
+}
+
+/* Modifier masks */
+static xcb_mod_mask_t mod_to_mask(mod_t mod)
+{
+ xcb_mod_mask_t mask = 0;
+ if (mod.alt) mask |= XCB_MOD_MASK_1;
+ if (mod.ctrl) mask |= XCB_MOD_MASK_CONTROL;
+ if (mod.shift) mask |= XCB_MOD_MASK_SHIFT;
+ if (mod.win) mask |= XCB_MOD_MASK_4;
+ return mask;
+}
+
+static mod_t mask_to_mod(xcb_mod_mask_t mask, int up)
+{
+ mod_t mod = { .up = up };
+ if (mask & XCB_MOD_MASK_1) mod.alt = 1;
+ if (mask & XCB_MOD_MASK_CONTROL) mod.ctrl = 1;
+ if (mask & XCB_MOD_MASK_SHIFT) mod.shift = 1;
+ if (mask & XCB_MOD_MASK_4) mod.win = 1;
+ return mod;
+}
+
+/* Mouse pointers */
+static ptr_t list_to_ptr(int16_t *list)
+{
+ ptr_t ptr = {};
+ if (list) {
+ ptr.rx = list[0]; // root_x
+ ptr.ry = list[1]; // root_y
+ ptr.x = list[2]; // event_x
+ ptr.y = list[3]; // event_y
+ }
+ return ptr;
+}
+
+/********************
+ * Window functions *
+ ********************/
+
+static int win_cmp(const void *_a, const void *_b)
+{
+ const win_t *a = _a;
+ const win_t *b = _b;
+ if (a->sys->xcb < b->sys->xcb) return -1;
+ if (a->sys->xcb > b->sys->xcb) return 1;
+ return 0;
+}
+
+static win_t *win_get(xcb_window_t xcb)
+{
+ win_sys_t sys = { .xcb = xcb };
+ win_t key = { .sys = &sys };
+
+ win_t **win = tfind(&key, &cache, win_cmp);
+
+ if (!win) {
+ warn("no window for %u", xcb);
+ return NULL;
+ }
+
+ return *win;
+}
+
+static win_t *win_new(xcb_window_t xcb)
+{
+ win_t *win = new0(win_t);
+ win->sys = new0(win_sys_t);
+ win->sys->xcb = xcb;
+
+ win_t **old = tfind(win, &cache, win_cmp);
+ if (old) {
+ warn("duplicate window for %u\n", xcb);
+ free(win->sys);
+ free(win);
+ return *old;
+ }
+
+ tsearch(win, &cache, win_cmp);
+ printf("win_new: xcb=%-8u -> win=%p\n",
+ win->sys->xcb, win);
+ return win;
+}
+
+static void win_free(win_t *win)
+{
+ printf("win_free: xcb=%-8u -> win=%p\n",
+ win->sys->xcb, win);
+ free(win->sys);
+ free(win);
+}
+
+static void win_add_strut(win_t *win)
+{
+ win->type = TYPE_TOOLBAR;
+ for (list_t *cur = screens; cur; cur = cur->next) {
+ win_t *screen = cur->data;
+ strut_t *strut = &win->sys->strut;
+ screen->x += strut->left;
+ screen->y += strut->top;
+ screen->w -= strut->left + strut->right;
+ screen->h -= strut->top + strut->bottom;
+ }
+ struts = list_insert(struts, win);
+
+}
+
+static void win_del_strut(win_t *win)
+{
+ list_t *link = list_find(struts, win);
+ if (!link)
+ return;
+ for (list_t *cur = screens; cur; cur = cur->next) {
+ win_t *screen = cur->data;
+ strut_t *strut = &win->sys->strut;
+ screen->x -= strut->left;
+ screen->y -= strut->top;
+ screen->w += strut->left + strut->right;
+ screen->h += strut->top + strut->bottom;
+ }
+ struts = list_remove(struts, link, 0);
+}
+
+/****************
+ * XCB Wrappers *
+ ****************/
+
+static void *do_query_tree(xcb_window_t xcb, xcb_window_t **kids, int *nkids)
+{
+ xcb_query_tree_cookie_t cookie =
+ xcb_query_tree(conn, xcb);
+ if (!cookie.sequence)
+ return warn("do_query_tree: %d - bad cookie", xcb), NULL;
+
+ xcb_query_tree_reply_t *reply =
+ xcb_query_tree_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_query_tree: %d - no reply", xcb), NULL;
+
+ *nkids = xcb_query_tree_children_length(reply);
+ *kids = xcb_query_tree_children(reply);
+ printf("do_query_tree: %d - n=%d\n", xcb, *nkids);
+ return reply;
+}
+
+static int do_get_geometry(xcb_window_t xcb,
+ int *x, int *y, int *w, int *h)
+{
+ xcb_get_geometry_cookie_t cookie =
+ xcb_get_geometry(conn, xcb);
+ if (!cookie.sequence)
+ return warn("do_get_geometry: %d - bad cookie", xcb);
+
+ xcb_get_geometry_reply_t *reply =
+ xcb_get_geometry_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_get_geometry: %d - no reply", xcb);
+
+ printf("do_get_geometry: %d - %dx%d @ %d,%d\n",
+ xcb, reply->width, reply->height, reply->x, reply->y);
+ *x = reply->x;
+ *y = reply->y;
+ *w = reply->width;
+ *h = reply->height;
+ free(reply);
+ return 1;
+}
+
+static int do_get_window_attributes(xcb_window_t xcb,
+ int *override, int *mapped)
+{
+ xcb_get_window_attributes_cookie_t cookie =
+ xcb_get_window_attributes(conn, xcb);
+ if (!cookie.sequence)
+ return warn("do_get_window_attributes: %d - bad cookie", xcb);
+
+ xcb_get_window_attributes_reply_t *reply =
+ xcb_get_window_attributes_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_get_window_attributes: %d - no reply ", xcb);
+
+ printf("do_get_window_attributes: %d - %d\n",
+ xcb, reply->override_redirect);
+ *override = reply->override_redirect;
+ *mapped = reply->map_state != XCB_MAP_STATE_UNMAPPED;
+ free(reply);
+ return 1;
+}
+
+static int do_xinerama_check(void)
+{
+ const xcb_query_extension_reply_t *data =
+ xcb_get_extension_data(conn, &xcb_xinerama_id);
+ if (!data || !data->present)
+ return warn("do_xinerama_check: no ext");
+
+ xcb_xinerama_is_active_cookie_t cookie =
+ xcb_xinerama_is_active(conn);
+ if (!cookie.sequence)
+ return warn("do_xinerama_check: no cookie");
+
+ xcb_xinerama_is_active_reply_t *reply =
+ xcb_xinerama_is_active_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_xinerama_check: no reply");
+
+ printf("do_xinerama_check: %d\n", reply->state);
+ int state = reply->state;
+ free(reply);
+ return state;
+}
+
+static void *do_query_screens(xcb_xinerama_screen_info_t **info, int *ninfo)
+{
+ xcb_xinerama_query_screens_cookie_t cookie =
+ xcb_xinerama_query_screens(conn);
+ if (!cookie.sequence)
+ return warn("do_query_screens: bad cookie"), NULL;
+
+ xcb_xinerama_query_screens_reply_t *reply =
+ xcb_xinerama_query_screens_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_query_screens: no reply"), NULL;
+
+ *ninfo = xcb_xinerama_query_screens_screen_info_length(reply);
+ *info = xcb_xinerama_query_screens_screen_info(reply);
+ printf("do_query_screens: %d screens\n", *ninfo);
+ return reply;
+}
+
+static int do_get_input_focus(void)
+{
+ xcb_get_input_focus_cookie_t cookie =
+ xcb_get_input_focus(conn);
+ if (!cookie.sequence)
+ return warn("do_get_input_focus: bad cookie");
+
+ xcb_get_input_focus_reply_t *reply =
+ xcb_get_input_focus_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_get_input_focus: no reply");
+
+ int focus = reply->focus;
+ free(reply);
+ return focus;
+}
+
+static xcb_atom_t do_intern_atom(const char *name)
+{
+ xcb_intern_atom_cookie_t cookie =
+ xcb_intern_atom(conn, 0, strlen(name), name);
+ if (!cookie.sequence)
+ return warn("do_intern_atom: bad cookie");
+
+ xcb_intern_atom_reply_t *reply =
+ xcb_intern_atom_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_intern_atom: no reply");
+
+ xcb_atom_t atom = reply->atom;
+ free(reply);
+ return atom;
+}
+
+static char *do_get_atom_name(xcb_atom_t atom)
+{
+ xcb_get_atom_name_cookie_t cookie =
+ xcb_get_atom_name(conn, atom);
+ if (!cookie.sequence)
+ return warn("do_get_atom_name: bad cookie"), NULL;
+
+ xcb_get_atom_name_reply_t *reply =
+ xcb_get_atom_name_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_get_atom_name: no reply"), NULL;
+
+ char *name = xcb_get_atom_name_name(reply);
+ int len = xcb_get_atom_name_name_length(reply);
+ char *str = strndup(name, len);
+ free(reply);
+ return str;
+}
+
+static int do_ewmh_init_atoms(void)
+{
+ xcb_intern_atom_cookie_t *cookies =
+ xcb_ewmh_init_atoms(conn, &ewmh);
+ if (!cookies)
+ return warn("do_ewmh_init_atoms: no cookies");
+
+ int status =
+ xcb_ewmh_init_atoms_replies(&ewmh, cookies, NULL);
+ if (!status)
+ return warn("do_ewmh_init_atoms: no status");
+ return status;
+}
+
+static int do_get_type(xcb_window_t xcb, type_t *type)
+{
+ xcb_get_property_cookie_t cookie =
+ xcb_ewmh_get_wm_window_type(&ewmh, xcb);
+ if (!cookie.sequence)
+ return warn("do_get_type: bad cookie");
+
+ xcb_ewmh_get_atoms_reply_t reply;
+ if (!xcb_ewmh_get_wm_window_type_reply(&ewmh, cookie, &reply, NULL))
+ return warn("do_get_type: no reply");
+
+ type_t prev = *type;
+ for (int i = 0; i < reply.atoms_len; i++) {
+ if (reply.atoms[i] == ewmh._NET_WM_WINDOW_TYPE_DOCK)
+ *type = TYPE_TOOLBAR;
+ if (reply.atoms[i] == ewmh._NET_WM_WINDOW_TYPE_TOOLBAR)
+ *type = TYPE_TOOLBAR;
+ if (reply.atoms[i] == ewmh._NET_WM_WINDOW_TYPE_DIALOG)
+ *type = TYPE_DIALOG;
+ }
+ printf("do_get_type: %d -> %d\n", prev, *type);
+ return 1;
+}
+
+static int do_get_icccm_state(xcb_window_t xcb, state_t *state)
+{
+ xcb_get_property_cookie_t cookie;
+
+ cookie = xcb_icccm_get_wm_normal_hints(conn, xcb);
+ if (!cookie.sequence)
+ return warn("do_get_icccm_state: bad cookie1");
+
+ xcb_size_hints_t sizes;
+ if (!xcb_icccm_get_wm_normal_hints_reply(conn, cookie, &sizes, NULL))
+ return warn("do_get_icccm_state: no sizes");
+
+ state_t prev = *state;
+ printf("do_get_icccm_state: %s -> %s\n",
+ state_map[prev], state_map[*state]);
+ return 1;
+}
+
+static int do_get_ewmh_state(xcb_window_t xcb, state_t *state)
+{
+ xcb_get_property_cookie_t cookie;
+
+ cookie = xcb_ewmh_get_wm_state(&ewmh, xcb);
+ if (!cookie.sequence)
+ return warn("do_get_ewmh_state: bad cookie2");
+
+ xcb_ewmh_get_atoms_reply_t states;
+ if (!xcb_ewmh_get_wm_state_reply(&ewmh, cookie, &states, NULL))
+ return warn("do_get_ewmh_state: no reply2");
+
+ state_t prev = *state;
+ for (int i = 0; i < states.atoms_len; i++)
+ if (states.atoms[i] == ewmh._NET_WM_STATE_FULLSCREEN)
+ *state = ST_FULL;
+
+ printf("do_get_ewmh_state: %s -> %s\n",
+ state_map[prev], state_map[*state]);
+ return 1;
+}
+
+static int do_get_strut(xcb_window_t xcb, strut_t *strut)
+{
+ xcb_get_property_cookie_t cookie =
+ xcb_ewmh_get_wm_strut(&ewmh, xcb);
+ if (!cookie.sequence)
+ return warn("do_get_strut: bad cookie");
+
+ xcb_ewmh_get_extents_reply_t ext = {};
+ int status =
+ xcb_ewmh_get_wm_strut_reply(&ewmh, cookie, &ext, NULL);
+ if (!status)
+ return warn("do_get_strut: no status");
+
+ strut->left = ext.left;
+ strut->right = ext.right;
+ strut->top = ext.top;
+ strut->bottom = ext.bottom;
+
+ return ext.left || ext.right || ext.top || ext.bottom;
+}
+
+static int do_get_transient(xcb_window_t xcb, xcb_window_t *parent)
+{
+ xcb_get_property_cookie_t cookie;
+
+ cookie = xcb_icccm_get_wm_transient_for(conn, xcb);
+ if (!cookie.sequence)
+ return warn("do_get_transient: bad cookie");
+
+ if (!xcb_icccm_get_wm_transient_for_reply(conn, cookie, parent, NULL))
+ return warn("do_get_transient: no sizes");
+
+ printf("do_get_transient: %d -> %d\n", xcb, *parent);
+ return 1;
+}
+
+static xcb_pixmap_t do_alloc_color(uint32_t rgb)
+{
+ uint16_t r = (rgb & 0xFF0000) >> 8;
+ uint16_t g = (rgb & 0x00FF00);
+ uint16_t b = (rgb & 0x0000FF) << 8;
+ xcb_alloc_color_cookie_t cookie =
+ xcb_alloc_color(conn, colormap, r, g, b);
+ if (!cookie.sequence)
+ return warn("do_alloc_color: bad cookie");
+
+ xcb_alloc_color_reply_t *reply =
+ xcb_alloc_color_reply(conn, cookie, NULL);
+ if (!reply)
+ return warn("do_alloc_color: no reply");
+
+ printf("do_alloc_color: %06x -> %06x\n", rgb, reply->pixel);
+ xcb_pixmap_t pixel = reply->pixel;
+ free(reply);
+ return pixel;
+}
+
+static void do_grab_pointer(xcb_event_mask_t mask)
+{
+ if (!grabbed)
+ xcb_grab_pointer(conn, 0, root, mask,
+ XCB_GRAB_MODE_ASYNC,
+ XCB_GRAB_MODE_ASYNC,
+ 0, 0, XCB_CURRENT_TIME);
+ grabbed++;
+}
+
+static void do_ungrab_pointer(void)
+{
+ grabbed--;
+ if (!grabbed)
+ xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
+}
+
+static void do_configure_window(xcb_window_t xcb,
+ int x, int y, int w, int h,
+ int b, int s, int r)
+{
+ int table[][2] = {
+ { x, XCB_CONFIG_WINDOW_X },
+ { y, XCB_CONFIG_WINDOW_Y },
+ { w, XCB_CONFIG_WINDOW_WIDTH },
+ { h, XCB_CONFIG_WINDOW_HEIGHT },
+ { b, XCB_CONFIG_WINDOW_BORDER_WIDTH },
+ { s, XCB_CONFIG_WINDOW_SIBLING },
+ { r, XCB_CONFIG_WINDOW_STACK_MODE },
+ };
+
+ uint16_t mask = 0;
+ uint32_t list[countof(table)];
+ for (int i=0,j=0; i < countof(table); i++) {
+ if (table[i][0] >= 0) {
+ list[j++] = table[i][0];
+ mask |= table[i][1];
+ }
+ }
+
+ xcb_configure_window(conn, xcb, mask, list);
+}
+
+static int do_client_message(xcb_window_t xcb, xcb_atom_t atom)
+{
+ /* Get protocols */
+ xcb_get_property_cookie_t cookie =
+ xcb_icccm_get_wm_protocols(conn, xcb, wm_protos);
+ if (!cookie.sequence)
+ return warn("do_client_message: %d - bad cookie", xcb);
+
+ xcb_icccm_get_wm_protocols_reply_t protos = {};
+ if (!xcb_icccm_get_wm_protocols_reply(conn, cookie, &protos, NULL))
+ return warn("do_client_message: %d - no reply", xcb);
+
+ /* Search for the atom */
+ int found = 0;
+ for (int i = 0; i < protos.atoms_len; i++)
+ if (protos.atoms[i] == atom)
+ found = 1;
+ xcb_icccm_get_wm_protocols_reply_wipe(&protos);
+ if (!found)
+ return warn("do_client_message: %d - no atom", xcb);
+
+ /* Send the message */
+ xcb_client_message_event_t msg = {
+ .response_type = XCB_CLIENT_MESSAGE,
+ .format = 32,
+ .window = xcb,
+ .type = wm_protos,
+ .data.data32[0] = atom,
+ .data.data32[1] = XCB_CURRENT_TIME,
+ };
+ xcb_send_event(conn, 0, xcb, XCB_EVENT_MASK_NO_EVENT,
+ (const char *)&msg);
+ return 1;
+}
+
+/**************************
+ * Window Manager Helpers *
+ **************************/
+
+/* Send event info */
+static int send_event(event_t ev, xcb_window_t ewin)
+{
+ win_t *win = win_get(ewin);
+ do_grab_pointer(0);
+ int status = wm_handle_event(win, ev, MOD(), PTR());
+ do_ungrab_pointer();
+ return status;
+}
+
+/* Send event info */
+static int send_event_info(event_t ev, xcb_mod_mask_t mask, int up, int16_t *pos,
+ xcb_window_t rwin, xcb_window_t ewin, xcb_window_t cwin)
+{
+ xcb_window_t xcb = ewin == rwin ? cwin : ewin;
+ win_t *win = win_get(xcb);
+ mod_t mod = mask_to_mod(mask, up);
+ ptr_t ptr = list_to_ptr(pos);
+ do_grab_pointer(0);
+ int status = wm_handle_event(win, ev, mod, ptr);
+ do_ungrab_pointer();
+ return status;
+}
+
+/* Send pointer motion info */
+static int send_pointer(int16_t *pos,
+ xcb_window_t rwin, xcb_window_t ewin, xcb_window_t cwin)
+{
+ xcb_window_t xcb = ewin == rwin ? cwin : ewin;
+ win_t *win = win_get(xcb);
+ ptr_t ptr = list_to_ptr(pos);
+ do_grab_pointer(0);
+ int status = wm_handle_ptr(win, ptr);
+ do_ungrab_pointer();
+ return status;
+}
+
+/* Send window state info */
+static void send_manage(win_t *win, int managed)
+{
+ if (win->sys->managed == managed)
+ return;
+ if (managed)
+ wm_insert(win);
+ else
+ wm_remove(win);
+ win->sys->managed = managed;
+}
+
+/* Send window state info */
+static void send_state(win_t *win, state_t next)
+{
+ if (!win->sys->managed)
+ return;
+ if (!win->sys->mapped)
+ return;
+ if (win->state == next)
+ return;
+ state_t prev = win->state;
+ win->state = next;
+ wm_handle_state(win, prev, next);
+}
+
+/**********************
+ * X11 Event Handlers *
+ **********************/
+
+/* Specific events */
+static void on_key_event(xcb_key_press_event_t *event, int up)
+{
+ printf("on_key_event: xcb=%-8u\n", event->event);
+ xcb_window_t focus = do_get_input_focus();
+ event_t ev = keycode_to_event(event->detail);
+ send_event_info(ev, event->state, up, &event->root_x,
+ event->root, focus, event->child);
+}
+
+static void on_button_event(xcb_button_press_event_t *event, int up)
+{
+ printf("on_button_event: xcb=%-8u\n", event->event);
+ event_t ev = button_to_event(event->detail);
+ if (!send_event_info(ev, event->state, up, &event->root_x,
+ event->root, event->event, event->child))
+ xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, event->time);
+ else if (!up)
+ do_grab_pointer(XCB_EVENT_MASK_POINTER_MOTION |
+ XCB_EVENT_MASK_BUTTON_RELEASE);
+ else
+ do_ungrab_pointer();
+
+}
+
+static void on_motion_notify(xcb_motion_notify_event_t *event)
+{
+ printf("on_motion_notify: xcb=%-8u - %d,%d / %d.%d\n", event->event,
+ event->event_x, event->event_y,
+ event->root_x, event->root_y);
+ send_pointer(&event->root_x, event->root, event->event, event->child);
+}
+
+static void on_enter_notify(xcb_enter_notify_event_t *event)
+{
+ if (event->mode != XCB_NOTIFY_MODE_NORMAL)
+ return;
+ printf("on_enter_notify: xcb=%-8u\n", event->event);
+ send_event_info(EV_ENTER, event->state, 0, &event->root_x,
+ event->root, event->event, event->child);
+}
+
+static void on_leave_notify(xcb_leave_notify_event_t *event)
+{
+ if (event->mode != XCB_NOTIFY_MODE_NORMAL)
+ return;
+ printf("on_leave_notify: xcb=%-8u\n", event->event);
+ send_event_info(EV_LEAVE, event->state, 0, &event->root_x,
+ event->root, event->event, event->child);
+}
+
+static void on_focus_in(xcb_focus_in_event_t *event)
+{
+ if (event->mode != XCB_NOTIFY_MODE_NORMAL &&
+ event->mode != XCB_NOTIFY_MODE_WHILE_GRABBED)
+ return;
+ printf("on_focus_in: xcb=%-8u mode=%d\n", event->event, event->mode);
+ xcb_change_window_attributes(conn, event->event,
+ XCB_CW_BORDER_PIXEL, &clr_focus);
+ if (event->mode == XCB_NOTIFY_MODE_NORMAL)
+ send_event(EV_FOCUS, event->event);
+}
+
+static void on_focus_out(xcb_focus_out_event_t *event)
+{
+ if (event->mode != XCB_NOTIFY_MODE_NORMAL &&
+ event->mode != XCB_NOTIFY_MODE_WHILE_GRABBED)
+ return;
+ printf("on_focus_out: xcb=%-8u mode=%d\n", event->event, event->mode);
+ xcb_change_window_attributes(conn, event->event,
+ XCB_CW_BORDER_PIXEL, &clr_unfocus);
+ if (event->mode == XCB_NOTIFY_MODE_NORMAL)
+ send_event(EV_UNFOCUS, event->event);
+}
+
+static void on_create_notify(xcb_create_notify_event_t *event)
+{
+ printf("on_create_notify: xcb=%-8u\n", event->window);
+
+ win_t *win = win_new(event->window);
+
+ win->x = event->x;
+ win->y = event->y;
+ win->w = event->width;
+ win->h = event->height;
+
+ win->sys->state = ST_SHOW;
+ win->sys->events = XCB_EVENT_MASK_PROPERTY_CHANGE;
+ xcb_change_window_attributes(conn, event->window,
+ XCB_CW_EVENT_MASK, &win->sys->events);
+
+ if (!event->override_redirect)
+ send_manage(win, 1);
+
+ if (do_get_transient(event->window, &win->sys->parent))
+ win->parent = win_get(win->sys->parent);
+}
+
+static void on_destroy_notify(xcb_destroy_notify_event_t *event)
+{
+ win_t *win = win_get(event->window);
+ printf("on_destroy_notify: xcb=%-8u -> win=%p\n",
+ event->window, win);
+ if (!win) return;
+
+ send_manage(win, 0);
+ tdelete(win, &cache, win_cmp);
+ win_free(win);
+}
+
+static void on_unmap_notify(xcb_unmap_notify_event_t *event)
+{
+ win_t *win = win_get(event->window);
+ printf("on_unmap_notify: xcb=%-8u -> win=%p\n",
+ event->window, win);
+ if (!win) return;
+
+ win_del_strut(win);
+ send_state(win, ST_HIDE);
+ win->sys->mapped = 0;
+}
+
+static void on_map_notify(xcb_map_notify_event_t *event)
+{
+ win_t *win = win_get(event->window);
+ printf("on_map_notify: xcb=%-8u -> win=%p\n",
+ event->window, win);
+ if (!win) return;
+
+ win->sys->mapped = 1;
+ send_state(win, win->sys->state);
+}
+
+static void on_map_request(xcb_map_request_event_t *event)
+{
+ win_t *win = win_get(event->window);
+ printf("on_map_request: xcb=%-8u -> win=%p\n",
+ event->window, win);
+ if (!win) return;
+
+ win->sys->mapped = 1;
+ send_state(win, win->sys->state);
+ xcb_map_window(conn, win->sys->xcb);
+ if (!win->sys->managed)
+ sys_move(win, win->x, win->y, win->w, win->h);
+}
+
+static void on_configure_request(xcb_configure_request_event_t *event)
+{
+ win_t *win = win_get(event->window);
+ printf("on_configure_request: xcb=%-8u -> win=%p -- %dx%d @ %d,%d\n",
+ event->window, win,
+ event->width, event->height,
+ event->x, event->y);
+ if (!win) return;
+ printf("on_configure_request: xcb=%-8u -> win=%p << %dx%d @ %d,%d\n",
+ event->window, win,
+ win->w, win->h,
+ win->x, win->y);
+
+ if (!win->sys->managed) {
+ win->x = event->x;
+ win->y = event->y;
+ win->w = event->width;
+ win->h = event->height;
+ }
+
+ xcb_configure_notify_event_t resp = {
+ .response_type = XCB_CONFIGURE_NOTIFY,
+ .event = win->sys->xcb,
+ .window = win->sys->xcb,
+ .x = win->x,
+ .y = win->y,
+ .width = win->w,
+ .height = win->h,
+ .border_width = border,
+ };
+
+ xcb_send_event(conn, 0, win->sys->xcb,
+ XCB_EVENT_MASK_STRUCTURE_NOTIFY,
+ (const char *)&resp);
+}
+
+static void on_property_notify(xcb_property_notify_event_t *event)
+{
+ win_t *win = win_get(event->window);
+ char *name = do_get_atom_name(event->atom);
+ printf("on_property_notify: xcb=%-8u -> win=%p - %s\n",
+ event->window, win, name);
+ if (name) free(name);
+ if (!win) return;
+
+ /* Check window type */
+ if (event->atom == ewmh._NET_WM_WINDOW_TYPE)
+ do_get_type(event->window, &win->type);
+
+ /* Check struts */
+ if (event->atom == ewmh._NET_WM_STRUT)
+ if (do_get_strut(win->sys->xcb, &win->sys->strut))
+ win_add_strut(win);
+
+ /* Check transient for */
+ if (event->atom == XCB_ATOM_WM_TRANSIENT_FOR)
+ if (do_get_transient(event->window, &win->sys->parent))
+ win->parent = win_get(win->sys->parent);
+
+ /* Check window state */
+ if (event->atom == wm_nhints)
+ if (do_get_icccm_state(event->window, &win->sys->state))
+ send_state(win, win->sys->state);
+ if (event->atom == ewmh._NET_WM_STATE)
+ if (do_get_ewmh_state(event->window, &win->sys->state))
+ send_state(win, win->sys->state);
+}
+
+static void on_client_message(xcb_client_message_event_t *event)
+{
+ win_t *win = win_get(event->window);
+ char *name = do_get_atom_name(event->type);
+ printf("on_client_message: xcb=%-8u -> win=%p - %s=[%d,%d,%d,%d]\n",
+ event->window, win, name,
+ event->data.data32[0], event->data.data32[1],
+ event->data.data32[2], event->data.data32[3]);
+ if (name) free(name);
+ if (!win) return;
+
+ /* Exit request */
+ if (event->window == control &&
+ event->type == wm_protos &&
+ event->data.data32[0] == wm_delete) {
+ printf("on_client_message: shutdown request");
+ running = 0;
+ }
+
+ /* Close request */
+ if (event->type == ewmh._NET_CLOSE_WINDOW) {
+ printf("on_client_message: close request");
+ sys_show(win, ST_CLOSE);
+ }
+
+ /* Fullscreen request */
+ if ((event->type == ewmh._NET_WM_STATE) &&
+ (event->data.data32[1] == ewmh._NET_WM_STATE_FULLSCREEN ||
+ event->data.data32[2] == ewmh._NET_WM_STATE_FULLSCREEN)) {
+ printf("on_client_message: fullscreen request");
+ int full = win->state == ST_FULL;
+ switch (event->data.data32[0]) {
+ case XCB_EWMH_WM_STATE_REMOVE: full = 0; break;
+ case XCB_EWMH_WM_STATE_ADD: full = 1; break;
+ case XCB_EWMH_WM_STATE_TOGGLE: full ^= 1; break;
+ }
+ win->sys->state = full ? ST_FULL : ST_SHOW;
+ send_state(win, win->sys->state);
+ sys_show(win, win->sys->state);
+ }
+
+}
+
+/* Generic Event */
+static void on_event(xcb_generic_event_t *event)
+{
+ int type = XCB_EVENT_RESPONSE_TYPE(event);
+
+ switch (type) {
+ /* Input handling */
+ case XCB_KEY_PRESS:
+ on_key_event((xcb_key_press_event_t *)event, 0);
+ break;
+ case XCB_KEY_RELEASE:
+ on_key_event((xcb_key_release_event_t *)event, 1);
+ break;
+ case XCB_BUTTON_PRESS:
+ on_button_event((xcb_button_press_event_t *)event, 0);
+ break;
+ case XCB_BUTTON_RELEASE:
+ on_button_event((xcb_button_release_event_t *)event, 1);
+ break;
+ case XCB_MOTION_NOTIFY:
+ on_motion_notify((xcb_motion_notify_event_t *)event);
+ break;
+ case XCB_ENTER_NOTIFY:
+ on_enter_notify((xcb_enter_notify_event_t *)event);
+ break;
+ case XCB_LEAVE_NOTIFY:
+ on_leave_notify((xcb_leave_notify_event_t *)event);
+ break;
+ case XCB_FOCUS_IN:
+ on_focus_in((xcb_focus_in_event_t *)event);
+ break;
+ case XCB_FOCUS_OUT:
+ on_focus_out((xcb_focus_out_event_t *)event);
+ break;
+
+ /* Window management */
+ case XCB_CREATE_NOTIFY:
+ on_create_notify((xcb_create_notify_event_t *)event);
+ break;
+ case XCB_DESTROY_NOTIFY:
+ on_destroy_notify((xcb_destroy_notify_event_t *)event);
+ break;
+ case XCB_UNMAP_NOTIFY:
+ on_unmap_notify((xcb_unmap_notify_event_t *)event);
+ break;
+ case XCB_MAP_NOTIFY:
+ on_map_notify((xcb_map_notify_event_t *)event);
+ break;
+ case XCB_MAP_REQUEST:
+ on_map_request((xcb_map_request_event_t *)event);
+ break;
+ case XCB_CONFIGURE_REQUEST:
+ on_configure_request((xcb_configure_request_event_t *)event);
+ break;
+ case XCB_PROPERTY_NOTIFY:
+ on_property_notify((xcb_property_notify_event_t *)event);
+ break;
+ case XCB_CLIENT_MESSAGE:
+ on_client_message((xcb_client_message_event_t *)event);
+ break;
+
+ /* Unknown events */
+ default:
+ printf("on_event: %d:%02X -> %s\n",
+ XCB_EVENT_SENT(event) != 0,
+ XCB_EVENT_RESPONSE_TYPE(event),
+ xcb_event_get_label(type) ?: "unknown_event");
+ break;
+ }
+}