Disable XKB instead of quitting with an error (Thanks sur5r)
This is necessary for running i3 in Xvnc for example.
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4b1bb7d19a
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c0c4dd2978
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@ -34,6 +34,7 @@ extern SLIST_HEAD(stack_wins_head, Stack_Window) stack_wins;
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extern xcb_event_handlers_t evenths;
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extern int num_screens;
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extern uint8_t root_depth;
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extern bool xkb_supported;
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extern xcb_atom_t atoms[NUM_ATOMS];
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extern xcb_window_t root;
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@ -105,12 +105,14 @@ int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_
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state_filtered &= 0xFF;
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LOG("(removed upper 8 bits, state = %d)\n", state_filtered);
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/* We need to get the keysym group (There are group 1 to group 4, each holding
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two keysyms (without shift and with shift) using Xkb because X fails to
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provide them reliably (it works in Xephyr, it does not in real X) */
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XkbStateRec state;
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if (XkbGetState(xkbdpy, XkbUseCoreKbd, &state) == Success && (state.group+1) == 2)
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state_filtered |= BIND_MODE_SWITCH;
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if (xkb_supported) {
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/* We need to get the keysym group (There are group 1 to group 4, each holding
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two keysyms (without shift and with shift) using Xkb because X fails to
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provide them reliably (it works in Xephyr, it does not in real X) */
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XkbStateRec state;
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if (XkbGetState(xkbdpy, XkbUseCoreKbd, &state) == Success && (state.group+1) == 2)
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state_filtered |= BIND_MODE_SWITCH;
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}
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LOG("(checked mode_switch, state %d)\n", state_filtered);
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45
src/mainx.c
45
src/mainx.c
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@ -83,6 +83,9 @@ int num_screens = 0;
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/* The depth of the root screen (used e.g. for creating new pixmaps later) */
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uint8_t root_depth;
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/* We hope that XKB is supported and set this to false */
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bool xkb_supported = true;
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/*
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* This callback is only a dummy, see xcb_prepare_cb and xcb_check_cb.
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* See also man libev(3): "ev_prepare" and "ev_check" - customise your event loop
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@ -245,25 +248,27 @@ int main(int argc, char *argv[], char *env[]) {
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int evBase, errBase;
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if ((xkbdpy = XkbOpenDisplay(getenv("DISPLAY"), &evBase, &errBase, &major, &minor, &error)) == NULL) {
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fprintf(stderr, "XkbOpenDisplay() failed\n");
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return 1;
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LOG("ERROR: XkbOpenDisplay() failed, disabling XKB support\n");
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xkb_supported = false;
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}
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if (fcntl(ConnectionNumber(xkbdpy), F_SETFD, FD_CLOEXEC) == -1) {
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fprintf(stderr, "Could not set FD_CLOEXEC on xkbdpy\n");
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return 1;
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}
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if (xkb_supported) {
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if (fcntl(ConnectionNumber(xkbdpy), F_SETFD, FD_CLOEXEC) == -1) {
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fprintf(stderr, "Could not set FD_CLOEXEC on xkbdpy\n");
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return 1;
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}
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int i1;
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if (!XkbQueryExtension(xkbdpy,&i1,&evBase,&errBase,&major,&minor)) {
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fprintf(stderr, "XKB not supported by X-server\n");
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return 1;
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}
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/* end of ugliness */
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int i1;
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if (!XkbQueryExtension(xkbdpy,&i1,&evBase,&errBase,&major,&minor)) {
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fprintf(stderr, "XKB not supported by X-server\n");
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return 1;
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}
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/* end of ugliness */
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if (!XkbSelectEvents(xkbdpy, XkbUseCoreKbd, XkbMapNotifyMask, XkbMapNotifyMask)) {
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fprintf(stderr, "Could not set XKB event mask\n");
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return 1;
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if (!XkbSelectEvents(xkbdpy, XkbUseCoreKbd, XkbMapNotifyMask, XkbMapNotifyMask)) {
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fprintf(stderr, "Could not set XKB event mask\n");
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return 1;
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}
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}
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/* Initialize event loop using libev */
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@ -279,11 +284,13 @@ int main(int argc, char *argv[], char *env[]) {
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ev_io_init(xcb_watcher, xcb_got_event, xcb_get_file_descriptor(conn), EV_READ);
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ev_io_start(loop, xcb_watcher);
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ev_io_init(xkb, xkb_got_event, ConnectionNumber(xkbdpy), EV_READ);
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ev_io_start(loop, xkb);
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if (xkb_supported) {
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ev_io_init(xkb, xkb_got_event, ConnectionNumber(xkbdpy), EV_READ);
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ev_io_start(loop, xkb);
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/* Flush the buffer so that libev can properly get new events */
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XFlush(xkbdpy);
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/* Flush the buffer so that libev can properly get new events */
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XFlush(xkbdpy);
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}
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ev_check_init(xcb_check, xcb_check_cb);
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ev_check_start(loop, xcb_check);
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