7 #include <sys/socket.h>
9 #include <sys/select.h>
13 #include <xcb/xcb_event.h>
14 #include <xcb/xcb_ewmh.h>
30 // check for other WM and initiate events capture
31 int register_events(void)
33 xcb_generic_error_t *error;
34 unsigned int values[] = {XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_PROPERTY_CHANGE | XCB_EVENT_MASK_BUTTON_PRESS};
35 error = xcb_request_check(dpy, xcb_change_window_attributes_checked(dpy, screen->root, XCB_CW_EVENT_MASK, values));
41 /* wrapper to get atoms using xcb */
42 void get_atoms(char **names, xcb_atom_t *atoms, int count)
45 xcb_intern_atom_cookie_t cookies[count];
46 xcb_intern_atom_reply_t *reply;
48 for (i = 0; i < count; i++)
49 cookies[i] = xcb_intern_atom(dpy, 0, strlen(names[i]), names[i]);
50 for (i = 0; i < count; i++) {
51 reply = xcb_intern_atom_reply(dpy, cookies[i], NULL);
53 /* PRINTF("%s : %d\n", names[i], reply->atom); */
54 atoms[i] = reply->atom;
57 PUTS("warning: failed to register atoms");
62 xcb_screen_t *screen_of_display(xcb_connection_t *dpy, int default_screen)
64 xcb_screen_iterator_t iter = xcb_setup_roots_iterator(xcb_get_setup(dpy));
65 for (; iter.rem; --default_screen, xcb_screen_next(&iter))
66 if (default_screen == 0) return iter.data;
72 sig = sig; /* to prevent an "ununsed parameter" warning */
73 if (signal(SIGCHLD, sigchld) == SIG_ERR)
74 die("cannot install SIGCHLD handler\n");
75 while (0 < waitpid(-1, NULL, WNOHANG))
79 void setup(int default_screen)
82 screen = screen_of_display(dpy, default_screen);
84 die("error: cannot aquire screen\n");
85 screen_width = screen->width_in_pixels;
86 screen_height = screen->height_in_pixels;
88 char *WM_ATOM_NAME[] = { "WM_PROTOCOLS", "WM_DELETE_WINDOW" };
89 char *NET_ATOM_NAME[] = { "_NET_SUPPORTED", "_NET_WM_STATE_FULLSCREEN", "_NET_WM_STATE", "_NET_ACTIVE_WINDOW" };
91 /* set up atoms for dialog/notification windows */
92 get_atoms(WM_ATOM_NAME, wmatoms, WM_COUNT);
93 get_atoms(NET_ATOM_NAME, netatoms, NET_COUNT);
95 xcb_change_property(dpy, XCB_PROP_MODE_REPLACE, screen->root, netatoms[NET_SUPPORTED], XCB_ATOM_ATOM, 32, NET_COUNT, netatoms);
103 int sock_fd, ret_fd, xfd, sel, nbr;
104 struct sockaddr_un sock_address;
106 char msg[BUFSIZ], rsp[BUFSIZ];
108 xcb_generic_event_t *event;
112 dpy = xcb_connect(NULL, &default_screen);
114 if (xcb_connection_has_error(dpy))
115 die("error: cannot open display\n");
117 setup(default_screen);
119 /* if (register_events() == 1) { */
120 /* xcb_disconnect(dpy); */
121 /* die("another WM is already running\n"); */
124 xfd = xcb_get_file_descriptor(dpy);
126 sock_path = getenv(SOCK_PATH);
128 if (sock_path == NULL)
129 die("BSPWM_SOCKET environment variable is not set\n");
131 sock_address.sun_family = AF_UNIX;
132 strcpy(sock_address.sun_path, sock_path);
135 sock_fd = socket(AF_UNIX, SOCK_STREAM, 0);
138 die("error: could not create socket\n");
140 bind(sock_fd, (struct sockaddr *) &sock_address, sizeof(sock_address));
141 listen(sock_fd, SOMAXCONN);
143 sel = MAX(sock_fd, xfd) + 1;
149 FD_ZERO(&descriptors);
150 FD_SET(sock_fd, &descriptors);
151 FD_SET(xfd, &descriptors);
155 if (select(sel, &descriptors, NULL, NULL, NULL)) {
157 if (FD_ISSET(xfd, &descriptors)) {
158 while ((event = xcb_poll_for_event(dpy)) != NULL) {
164 if (FD_ISSET(sock_fd, &descriptors)) {
165 ret_fd = accept(sock_fd, NULL, 0);
166 if (ret_fd > 0 && (nbr = recv(ret_fd, msg, sizeof(msg), 0)) > 0) {
168 strcpy(rsp, EMPTY_RESPONSE);
169 process_message(msg, rsp);
170 send(ret_fd, rsp, strlen(rsp), 0);