strlen(name),
name);
+ xcb_change_property(conn,
+ XCB_PROP_MODE_REPLACE,
+ win,
+ XCB_ATOM_WM_CLASS,
+ XCB_ATOM_STRING,
+ 8,
+ 2 * (strlen("i3lock") + 1),
+ "i3lock\0i3lock\0");
+
/* Map the window (= make it visible) */
xcb_map_window(conn, win);
}
/*
- * Repeatedly tries to grab pointer and keyboard (up to 10000 times).
+ * Repeatedly tries to grab pointer and keyboard (up to the specified number of
+ * tries).
+ *
+ * Returns true if the grab succeeded, false if not.
*
*/
-void grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen, xcb_cursor_t cursor) {
+bool grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen, xcb_cursor_t cursor, int tries) {
xcb_grab_pointer_cookie_t pcookie;
xcb_grab_pointer_reply_t *preply;
xcb_grab_keyboard_reply_t *kreply;
const suseconds_t screen_redraw_timeout = 100000; /* 100ms */
- int tries = 10000;
/* Using few variables to trigger a redraw_screen() if too many tries */
bool redrawn = false;
break;
}
+ /* In case the grab failed, we still need to free the reply */
+ free(preply);
+
/* Make this quite a bit slower */
usleep(50);
break;
}
+ /* In case the grab failed, we still need to free the reply */
+ free(kreply);
+
/* Make this quite a bit slower */
usleep(50);
}
}
- /* After trying for 10000 times, i3lock will display an error message
- * for 2 sec prior to terminate. */
- if (tries <= 0) {
- auth_state = STATE_I3LOCK_LOCK_FAILED;
- redraw_screen();
- sleep(1);
- errx(EXIT_FAILURE, "Cannot grab pointer/keyboard");
- }
+ return (tries > 0);
}
xcb_cursor_t create_cursor(xcb_connection_t *conn, xcb_screen_t *screen, xcb_window_t win, int choice) {
return cursor;
}
+
+static xcb_atom_t _NET_ACTIVE_WINDOW = XCB_NONE;
+void _init_net_active_window(xcb_connection_t *conn) {
+ if (_NET_ACTIVE_WINDOW != XCB_NONE) {
+ /* already initialized */
+ return;
+ }
+ xcb_generic_error_t *err;
+ xcb_intern_atom_reply_t *atom_reply = xcb_intern_atom_reply(
+ conn,
+ xcb_intern_atom(conn, 0, strlen("_NET_ACTIVE_WINDOW"), "_NET_ACTIVE_WINDOW"),
+ &err);
+ if (atom_reply == NULL) {
+ fprintf(stderr, "X11 Error %d\n", err->error_code);
+ free(err);
+ return;
+ }
+ _NET_ACTIVE_WINDOW = atom_reply->atom;
+ free(atom_reply);
+}
+
+xcb_window_t find_focused_window(xcb_connection_t *conn, const xcb_window_t root) {
+ xcb_window_t result = XCB_NONE;
+
+ _init_net_active_window(conn);
+
+ xcb_get_property_reply_t *prop_reply = xcb_get_property_reply(
+ conn,
+ xcb_get_property_unchecked(
+ conn, false, root, _NET_ACTIVE_WINDOW, XCB_GET_PROPERTY_TYPE_ANY, 0, 1 /* word */),
+ NULL);
+ if (prop_reply == NULL) {
+ goto out;
+ }
+ if (xcb_get_property_value_length(prop_reply) == 0) {
+ goto out_prop;
+ }
+ if (prop_reply->type != XCB_ATOM_WINDOW) {
+ goto out_prop;
+ }
+
+ result = *((xcb_window_t *)xcb_get_property_value(prop_reply));
+
+out_prop:
+ free(prop_reply);
+out:
+ return result;
+}
+
+void set_focused_window(xcb_connection_t *conn, const xcb_window_t root, const xcb_window_t window) {
+ xcb_client_message_event_t ev;
+ memset(&ev, '\0', sizeof(xcb_client_message_event_t));
+
+ _init_net_active_window(conn);
+
+ ev.response_type = XCB_CLIENT_MESSAGE;
+ ev.window = window;
+ ev.type = _NET_ACTIVE_WINDOW;
+ ev.format = 32;
+ ev.data.data32[0] = 2; /* 2 = pager */
+
+ xcb_send_event(conn, false, root, XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (char *)&ev);
+ xcb_flush(conn);
+}