Function ec_key

win/X11/winmisc.c:1792–1902

ARGSUSED */

/* ARGSUSED */
void
ec_key(Widget w, XEvent *event, String *params, Cardinal *num_params)
{
    char ch;
    int i, pass;
    float shown, top;
    Arg arg[2];
    Widget hbar, vbar;
    XKeyEvent *xkey = (XKeyEvent *) event;

    nhUse(params);
    nhUse(num_params);

    ch = key_event_to_char(xkey);

    if (ch == '\0') { /* don't accept nul char/modifier event */
        /* don't beep */
        return;
    } else if (ch == '?') {
        extend_help((Widget) 0, (XtPointer) 0, (XtPointer) 0);
        return;
    } else if (strchr("\033\n\r", ch)) {
        if (ch == '\033') {
            /* unselect while still visible */
            if (extended_cmd_selected >= 0)
                swap_fg_bg(extended_commands[extended_cmd_selected]);
            extended_cmd_selected = -1; /* dismiss */
        }

        nh_XtPopdown(extended_command_popup);
        /* unselect while invisible */
        if (extended_cmd_selected >= 0)
            swap_fg_bg(extended_commands[extended_cmd_selected]);

        exit_x_event = TRUE; /* leave event loop */
        ec_active = FALSE;
        return;
    } else if (ch == MENU_FIRST_PAGE || ch == MENU_LAST_PAGE) {
        find_scrollbars(w, (Widget) 0, &hbar, &vbar);
        if (vbar) {
            top = (ch == MENU_FIRST_PAGE) ? 0.0 : 1.0;
            XtCallCallbacks(vbar, XtNjumpProc, &top);
        }
        return;
    } else if (ch == MENU_NEXT_PAGE || ch == MENU_PREVIOUS_PAGE) {
        find_scrollbars(w, (Widget) 0, &hbar, &vbar);
        if (vbar) {
            XtSetArg(arg[0], nhStr(XtNshown), &shown);
            XtSetArg(arg[1], nhStr(XtNtopOfThumb), &top);
            XtGetValues(vbar, arg, TWO);
            top += ((ch == MENU_NEXT_PAGE) ? shown : -shown);
            XtCallCallbacks(vbar, XtNjumpProc, &top);
        }
        return;
    }

    /*
     * If too much time has elapsed, treat current key as starting a new