BOOL select_prev_option( dom::element& option )
{
dom::element next = option.prev_sibling();
if( !next.is_valid() )
return FALSE;
if( !aux::streq(next.get_element_type(),"option") )
return FALSE;
next.set_state(STATE_FOCUS);
return TRUE;
}
// select next/prev/first/last tab
bool select_tab( dom::element& tabs_el, dom::element& tab_el, int direction )
{
// find new tab
dom::element new_tab_el(0);
switch( direction )
{
case -2: new_tab_el = tabs_el.first_sibling();
while( new_tab_el.is_valid() )
{
if( !new_tab_el.get_state(STATE_DISABLED) )
break;
new_tab_el = new_tab_el.next_sibling();
}
break;
case -1: new_tab_el = tab_el.prev_sibling();
while( new_tab_el.is_valid() )
{
if( !new_tab_el.get_state(STATE_DISABLED) )
break;
new_tab_el = new_tab_el.prev_sibling();
}
break;
case +1: new_tab_el = tab_el.next_sibling();
while( new_tab_el.is_valid() )
{
if( !new_tab_el.get_state(STATE_DISABLED) )
break;
new_tab_el = new_tab_el.next_sibling();
}
break;
case +2: new_tab_el = tab_el.last_sibling();
while( new_tab_el.is_valid() )
{
if( !new_tab_el.get_state(STATE_DISABLED) )
break;
new_tab_el = new_tab_el.prev_sibling();
}
break;
default: assert(false); return false;
}
if( !new_tab_el.is_valid() || new_tab_el.get_attribute("panel") == 0 ) //is not a tab element
return FALSE;
return select_tab( tabs_el, new_tab_el );
}