static cb_ret_t
listbox_execute_cmd (WListbox * l, long command)
{
cb_ret_t ret = MSG_HANDLED;
Widget *w = WIDGET (l);
if (l->list == NULL || g_queue_is_empty (l->list))
return MSG_NOT_HANDLED;
switch (command)
{
case CK_Up:
listbox_back (l, TRUE);
break;
case CK_Down:
listbox_fwd (l, TRUE);
break;
case CK_Top:
listbox_select_first (l);
break;
case CK_Bottom:
listbox_select_last (l);
break;
case CK_PageUp:
listbox_back_n (l, w->lines - 1);
break;
case CK_PageDown:
listbox_fwd_n (l, w->lines - 1);
break;
case CK_Delete:
if (l->deletable)
{
gboolean is_last, is_more;
int length;
length = g_queue_get_length (l->list);
is_last = (l->pos + 1 >= length);
is_more = (l->top + w->lines >= length);
listbox_remove_current (l);
if ((l->top > 0) && (is_last || is_more))
l->top--;
}
break;
case CK_Clear:
if (l->deletable && mc_global.widget.confirm_history_cleanup
/* TRANSLATORS: no need to translate 'DialogTitle', it's just a context prefix */
&& (query_dialog (Q_ ("DialogTitle|History cleanup"),
_("Do you want clean this history?"),
D_ERROR, 2, _("&Yes"), _("&No")) == 0))
listbox_remove_list (l);
break;
default:
ret = MSG_NOT_HANDLED;
}
return ret;
}
static void
listbox_back (WListbox * l)
{
if (l->pos <= 0)
listbox_select_last (l);
else
listbox_select_entry (l, l->pos - 1);
}
static void
listbox_back (WListbox * l, gboolean wrap)
{
if (l->pos > 0)
listbox_select_entry (l, l->pos - 1);
else if (wrap)
listbox_select_last (l);
}
char *
history_show (GList ** history, Widget * widget, int current)
{
GList *z, *hlist = NULL, *hi;
size_t maxlen, i, count = 0;
char *r = NULL;
Dlg_head *query_dlg;
WListbox *query_list;
history_dlg_data hist_data;
if (*history == NULL)
return NULL;
maxlen = str_term_width1 (_("History")) + 2;
for (z = *history; z != NULL; z = g_list_previous (z))
{
WLEntry *entry;
i = str_term_width1 ((char *) z->data);
maxlen = max (maxlen, i);
count++;
entry = g_new0 (WLEntry, 1);
/* history is being reverted here */
entry->text = g_strdup ((char *) z->data);
hlist = g_list_prepend (hlist, entry);
}
hist_data.widget = widget;
hist_data.count = count;
hist_data.maxlen = maxlen;
query_dlg =
create_dlg (TRUE, 0, 0, 4, 4, dialog_colors, history_dlg_callback, NULL,
"[History-query]", _("History"), DLG_COMPACT);
query_dlg->data = &hist_data;
query_list = listbox_new (1, 1, 2, 2, TRUE, NULL);
/* this call makes list stick to all sides of dialog, effectively make
it be resized with dialog */
add_widget_autopos (query_dlg, query_list, WPOS_KEEP_ALL, NULL);
/* to avoid diplicating of (calculating sizes in two places)
code, call dlg_hist_callback function here, to set dialog and
controls positions.
The main idea - create 4x4 dialog and add 2x2 list in
center of it, and let dialog function resize it to needed
size. */
history_dlg_callback (query_dlg, NULL, DLG_RESIZE, 0, NULL);
if (query_dlg->y < widget->y)
{
/* draw list entries from bottom upto top */
listbox_set_list (query_list, hlist);
if (current < 0 || (size_t) current >= count)
listbox_select_last (query_list);
else
listbox_select_entry (query_list, count - 1 - (size_t) current);
}
else
{
/* draw list entries from top downto bottom */
/* revert history direction */
hlist = g_list_reverse (hlist);
listbox_set_list (query_list, hlist);
if (current > 0)
listbox_select_entry (query_list, current);
}
if (run_dlg (query_dlg) != B_CANCEL)
{
char *q;
listbox_get_current (query_list, &q, NULL);
r = g_strdup (q);
}
/* get modified history from dialog */
z = NULL;
for (hi = query_list->list; hi != NULL; hi = g_list_next (hi))
{
WLEntry *entry;
entry = (WLEntry *) hi->data;
/* history is being reverted here again */
z = g_list_prepend (z, entry->text);
entry->text = NULL;
}
/* restore history direction */
if (query_dlg->y < widget->y)
z = g_list_reverse (z);
destroy_dlg (query_dlg);
g_list_foreach (*history, (GFunc) g_free, NULL);
g_list_free (*history);
*history = g_list_last (z);
return r;
}