void
update_cursor (WDialog * h)
{
GList *p = h->current;
if (p != NULL && widget_get_state (WIDGET (h), WST_ACTIVE))
{
Widget *w = WIDGET (p->data);
if (!widget_get_state (w, WST_DISABLED) && widget_get_options (w, WOP_WANT_CURSOR))
send_message (w, NULL, MSG_CURSOR, 0, NULL);
else
do
{
p = dlg_get_widget_next_of (p);
if (p == h->current)
break;
w = WIDGET (p->data);
if (!widget_get_state (w, WST_DISABLED) && widget_get_options (w, WOP_WANT_CURSOR)
&& send_message (w, NULL, MSG_CURSOR, 0, NULL) == MSG_HANDLED)
break;
}
while (TRUE);
}
}
void
widget_replace (Widget * old_w, Widget * new_w)
{
WDialog *h = old_w->owner;
gboolean should_focus = FALSE;
GList *holder;
if (h->widgets == NULL)
return;
if (h->current == NULL)
h->current = h->widgets;
/* locate widget position in the list */
if (old_w == h->current->data)
holder = h->current;
else
holder = g_list_find (h->widgets, old_w);
/* if old widget is focused, we should focus the new one... */
if (widget_get_state (old_w, WST_FOCUSED))
should_focus = TRUE;
/* ...but if new widget isn't selectable, we cannot focus it */
if (!widget_get_options (new_w, WOP_SELECTABLE))
should_focus = FALSE;
/* if new widget isn't selectable, select other widget before replace */
if (!should_focus)
{
GList *l;
for (l = dlg_get_widget_next_of (holder);
!widget_get_options (WIDGET (l->data), WOP_SELECTABLE)
&& !widget_get_state (WIDGET (l->data), WST_DISABLED); l = dlg_get_widget_next_of (l))
;
widget_select (WIDGET (l->data));
}
/* replace widget */
new_w->owner = h;
new_w->id = old_w->id;
holder->data = new_w;
send_message (old_w, NULL, MSG_DESTROY, 0, NULL);
send_message (new_w, NULL, MSG_INIT, 0, NULL);
if (should_focus)
widget_select (new_w);
else
widget_redraw (new_w);
}
void
dlg_init (WDialog * h)
{
Widget *wh = WIDGET (h);
if (top_dlg != NULL && widget_get_state (WIDGET (top_dlg->data), WST_MODAL))
widget_set_state (wh, WST_MODAL, TRUE);
/* add dialog to the stack */
top_dlg = g_list_prepend (top_dlg, h);
/* Initialize dialog manager and widgets */
if (widget_get_state (wh, WST_CONSTRUCT))
{
if (!widget_get_state (wh, WST_MODAL))
dialog_switch_add (h);
send_message (h, NULL, MSG_INIT, 0, NULL);
dlg_broadcast_msg (h, MSG_INIT);
dlg_read_history (h);
}
/* Select the first widget that takes focus */
while (h->current != NULL && !widget_get_options (WIDGET (h->current->data), WOP_SELECTABLE)
&& !widget_get_state (WIDGET (h->current->data), WST_DISABLED))
dlg_set_current_widget_next (h);
widget_set_state (wh, WST_ACTIVE, TRUE);
dlg_redraw (h);
/* focus found widget */
if (h->current != NULL)
widget_set_state (WIDGET (h->current->data), WST_FOCUSED, TRUE);
h->ret_value = 0;
}
void
widget_select (Widget * w)
{
WDialog *h;
if (!widget_get_options (w, WOP_SELECTABLE))
return;
h = w->owner;
if (h != NULL)
{
if (widget_get_options (w, WOP_TOP_SELECT))
{
GList *l;
l = dlg_find (h, w);
widget_reorder (l, TRUE);
}
widget_focus (w);
}
}
static void
dlg_key_event (WDialog * h, int d_key)
{
cb_ret_t handled;
if (h->widgets == NULL)
return;
if (h->current == NULL)
h->current = h->widgets;
/* TAB used to cycle */
if (!widget_get_options (WIDGET (h), WOP_WANT_TAB))
{
if (d_key == '\t')
{
dlg_select_next_widget (h);
return;
}
else if ((d_key & ~(KEY_M_SHIFT | KEY_M_CTRL)) == '\t')
{
dlg_select_prev_widget (h);
return;
}
}
/* first can dlg_callback handle the key */
handled = send_message (h, NULL, MSG_KEY, d_key, NULL);
/* next try the hotkey */
if (handled == MSG_NOT_HANDLED)
handled = dlg_try_hotkey (h, d_key);
if (handled == MSG_HANDLED)
send_message (h, NULL, MSG_HOTKEY_HANDLED, 0, NULL);
else
/* not used - then try widget_callback */
handled = send_message (h->current->data, NULL, MSG_KEY, d_key, NULL);
/* not used- try to use the unhandled case */
if (handled == MSG_NOT_HANDLED)
handled = send_message (h, NULL, MSG_UNHANDLED_KEY, d_key, NULL);
if (handled == MSG_NOT_HANDLED)
handled = dlg_handle_key (h, d_key);
(void) handled;
send_message (h, NULL, MSG_POST_KEY, d_key, NULL);
}
static void
dlg_select_next_or_prev (WDialog * h, gboolean next)
{
if (h->widgets != NULL && h->current != NULL)
{
GList *l = h->current;
Widget *w;
do
{
l = dlg_get_next_or_prev_of (l, next);
w = WIDGET (l->data);
}
while ((widget_get_state (w, WST_DISABLED) || !widget_get_options (w, WOP_SELECTABLE))
&& l != h->current);
widget_select (l->data);
}
}
static cb_ret_t
dlg_try_hotkey (WDialog * h, int d_key)
{
GList *hot_cur;
Widget *current;
cb_ret_t handled;
int c;
if (h->widgets == NULL)
return MSG_NOT_HANDLED;
if (h->current == NULL)
h->current = h->widgets;
/*
* Explanation: we don't send letter hotkeys to other widgets if
* the currently selected widget is an input line
*/
current = WIDGET (h->current->data);
if (widget_get_state (current, WST_DISABLED))
return MSG_NOT_HANDLED;
if (widget_get_options (current, WOP_IS_INPUT))
{
/* skip ascii control characters, anything else can valid character in
* some encoding */
if (d_key >= 32 && d_key < 256)
return MSG_NOT_HANDLED;
}
/* If it's an alt key, send the message */
c = d_key & ~ALT (0);
if (d_key & ALT (0) && g_ascii_isalpha (c))
d_key = g_ascii_tolower (c);
handled = MSG_NOT_HANDLED;
if (widget_get_options (current, WOP_WANT_HOTKEY))
handled = send_message (current, NULL, MSG_HOTKEY, d_key, NULL);
/* If not used, send hotkey to other widgets */
if (handled == MSG_HANDLED)
return MSG_HANDLED;
hot_cur = dlg_get_widget_next_of (h->current);
/* send it to all widgets */
while (h->current != hot_cur && handled == MSG_NOT_HANDLED)
{
current = WIDGET (hot_cur->data);
if (widget_get_options (current, WOP_WANT_HOTKEY)
&& !widget_get_state (current, WST_DISABLED))
handled = send_message (current, NULL, MSG_HOTKEY, d_key, NULL);
if (handled == MSG_NOT_HANDLED)
hot_cur = dlg_get_widget_next_of (hot_cur);
}
if (handled == MSG_HANDLED)
widget_select (WIDGET (hot_cur->data));
return handled;
}
