Implements callback_filter_settings().
Filter settings callback for the HTML content filter.
function _filter_html_settings($form, &$form_state, $filter, $format, $defaults) {
$filter->settings += $defaults;
$settings['allowed_html'] = array(
'#type' => 'textfield',
'#title' => t('Allowed HTML tags'),
'#default_value' => $filter->settings['allowed_html'],
'#maxlength' => 1024,
'#description' => t('A list of HTML tags that can be used. JavaScript event attributes, JavaScript URLs, and CSS are always stripped.'),
);
$settings['filter_html_help'] = array(
'#type' => 'checkbox',
'#title' => t('Display basic HTML help in long filter tips'),
'#default_value' => $filter->settings['filter_html_help'],
);
$settings['filter_html_nofollow'] = array(
'#type' => 'checkbox',
'#title' => t('Add rel="nofollow" to all links'),
'#default_value' => $filter->settings['filter_html_nofollow'],
);
return $settings;
}