7 #include <sys/socket.h>
9 #include <sys/select.h>
13 #include <xcb/xcb_event.h>
28 // check for other WM and initiate events capture
29 int register_events(void)
31 xcb_generic_error_t *error;
32 unsigned int values[] = {XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_PROPERTY_CHANGE | XCB_EVENT_MASK_BUTTON_PRESS};
33 error = xcb_request_check(dpy, xcb_change_window_attributes_checked(dpy, screen->root, XCB_CW_EVENT_MASK, values));
39 /* wrapper to get atoms using xcb */
40 void get_atoms(char **names, xcb_atom_t *atoms, int count)
43 xcb_intern_atom_cookie_t cookies[count];
44 xcb_intern_atom_reply_t *reply;
46 for (i = 0; i < count; i++)
47 cookies[i] = xcb_intern_atom(dpy, 0, strlen(names[i]), names[i]);
48 for (i = 0; i < count; i++) {
49 reply = xcb_intern_atom_reply(dpy, cookies[i], NULL);
51 /* PRINTF("%s : %d\n", names[i], reply->atom); */
52 atoms[i] = reply->atom;
55 PUTS("warning: failed to register atoms");
60 xcb_screen_t *screen_of_display(xcb_connection_t *dpy, int default_screen)
62 xcb_screen_iterator_t iter = xcb_setup_roots_iterator(xcb_get_setup(dpy));
63 for (; iter.rem; --default_screen, xcb_screen_next(&iter))
64 if (default_screen == 0) return iter.data;
70 sig = sig; /* to prevent an "ununsed parameter" warning */
71 if (signal(SIGCHLD, sigchld) == SIG_ERR)
72 die("cannot install SIGCHLD handler\n");
73 while (0 < waitpid(-1, NULL, WNOHANG))
77 void setup(int default_screen)
80 screen = screen_of_display(dpy, default_screen);
82 die("error: cannot aquire screen\n");
83 screen_width = screen->width_in_pixels;
84 screen_height = screen->height_in_pixels;
86 char *WM_ATOM_NAME[] = { "WM_PROTOCOLS", "WM_DELETE_WINDOW" };
87 char *NET_ATOM_NAME[] = { "_NET_SUPPORTED", "_NET_WM_STATE_FULLSCREEN", "_NET_WM_STATE", "_NET_ACTIVE_WINDOW" };
89 /* set up atoms for dialog/notification windows */
90 get_atoms(WM_ATOM_NAME, wmatoms, WM_COUNT);
91 get_atoms(NET_ATOM_NAME, netatoms, NET_COUNT);
93 xcb_change_property(dpy, XCB_PROP_MODE_REPLACE, screen->root, netatoms[NET_SUPPORTED], XCB_ATOM_ATOM, 32, NET_COUNT, netatoms);
99 int sock_fd, ret_fd, xfd, sel, nbr;
100 struct sockaddr_un sock_address;
102 char msg[BUFSIZ], rsp[BUFSIZ];
104 xcb_generic_event_t *event;
108 dpy = xcb_connect(NULL, &default_screen);
110 if (xcb_connection_has_error(dpy))
111 die("error: cannot open display\n");
113 setup(default_screen);
115 /* if (register_events() == 1) { */
116 /* xcb_disconnect(dpy); */
117 /* die("another WM is already running\n"); */
120 xfd = xcb_get_file_descriptor(dpy);
122 sock_path = getenv(SOCK_PATH);
124 if (sock_path == NULL)
125 die("BSPWM_SOCKET environment variable is not set\n");
127 sock_address.sun_family = AF_UNIX;
128 strcpy(sock_address.sun_path, sock_path);
131 sock_fd = socket(AF_UNIX, SOCK_STREAM, 0);
134 die("error: could not create socket\n");
136 bind(sock_fd, (struct sockaddr *) &sock_address, sizeof(sock_address));
137 listen(sock_fd, SOMAXCONN);
139 sel = MAX(sock_fd, xfd) + 1;
145 FD_ZERO(&descriptors);
146 FD_SET(sock_fd, &descriptors);
147 FD_SET(xfd, &descriptors);
151 if (select(sel, &descriptors, NULL, NULL, NULL)) {
153 if (FD_ISSET(xfd, &descriptors)) {
154 while ((event = xcb_poll_for_event(dpy)) != NULL) {
160 if (FD_ISSET(sock_fd, &descriptors)) {
161 ret_fd = accept(sock_fd, NULL, 0);
162 if (ret_fd > 0 && (nbr = recv(ret_fd, msg, sizeof(msg), 0)) > 0) {
164 strcpy(rsp, EMPTY_RESPONSE);
165 process_message(msg, rsp);
166 send(ret_fd, rsp, strlen(rsp), 0);