void gcmd_win_change_focus(window_t *win, glui32 arg)
{
win = gli_window_iterate_treeorder(gli_focuswin);
while (win == NULL || win->type == wintype_Pair) {
if (win == gli_focuswin)
return;
win = gli_window_iterate_treeorder(win);
}
gli_focuswin = win;
}
/* Handle a keystroke. This is called from glk_select() whenever a
key is hit. */
void gli_input_handle_key(glui32 key)
{
command_t *cmd = NULL;
window_t *win = NULL;
/* First, see if the key has a general binding. */
if (!cmd) {
cmd = commands_always(key);
if (cmd)
win = NULL;
}
/* If not, see if the key is bound in the focus window. */
if (!cmd && gli_focuswin) {
cmd = commands_window(gli_focuswin, key);
if (cmd)
win = gli_focuswin;
}
/* If not, see if there's some other window which has a binding for
the key; if so, set the focus there. */
if (!cmd && gli_rootwin) {
window_t *altwin = gli_focuswin;
command_t *altcmd = NULL;
do {
altwin = gli_window_iterate_treeorder(altwin);
if (altwin && altwin->type != wintype_Pair) {
altcmd = commands_window(altwin, key);
if (altcmd)
break;
}
} while (altwin != gli_focuswin);
if (altwin != gli_focuswin && altcmd) {
cmd = altcmd;
win = altwin;
gli_focuswin = win; /* set the focus */
}
}
if (cmd) {
/* We found a binding. Run it. */
glui32 arg;
if (cmd->arg == -1) {
arg = (glui32)key;
}
else {
arg = cmd->arg;
}
(*cmd->func)(win, arg);
}
}
/* Pick a window which might want input. This is called at the beginning
of glk_select(). */
void gli_input_guess_focus()
{
window_t *altwin;
if (gli_focuswin
&& (gli_focuswin->line_request || gli_focuswin->char_request)) {
return;
}
altwin = gli_focuswin;
do {
altwin = gli_window_iterate_treeorder(altwin);
if (altwin
&& (altwin->line_request || altwin->char_request)) {
break;
}
} while (altwin != gli_focuswin);
if (gli_focuswin != altwin)
gli_focuswin = altwin;
}
