/**
* Validate settings for the tab.
*/
function dg_validate_settings($values)
{
global $dg_options;
$ret = $dg_options;
include_once DG_PATH . 'inc/class-gallery.php';
$thumbs_cleared = false;
// handle gallery shortcode defaults
$errs = array();
$ret['gallery'] = DG_Gallery::sanitizeDefaults(null, $values['gallery_defaults'], $errs);
foreach ($errs as $k => $v) {
add_settings_error(DG_OPTION_NAME, str_replace('_', '-', $k), $v);
}
// handle setting width
if (isset($values['thumbnail_generation']['width'])) {
$width = (int) $values['thumbnail_generation']['width'];
if ($width > 0) {
$ret['thumber']['width'] = $width;
} else {
add_settings_error(DG_OPTION_NAME, 'thumber-width', __('Invalid width given: ', 'document-gallery') . $values['thumbnail_generation']['width']);
}
unset($values['thumbnail_generation']['width']);
}
// handle setting height
if (isset($values['thumbnail_generation']['height'])) {
$height = (int) $values['thumbnail_generation']['height'];
if ($height > 0) {
$ret['thumber']['height'] = $height;
} else {
add_settings_error(DG_OPTION_NAME, 'thumber-height', __('Invalid height given: ', 'document-gallery') . $values['thumbnail_generation']['height']);
}
unset($values['thumbnail_generation']['width']);
}
// delete thumb cache to force regeneration if max dimensions changed
if ($ret['thumber']['width'] !== $dg_options['thumber']['width'] || $ret['thumber']['height'] !== $dg_options['thumber']['height']) {
DG_Thumb::purgeThumbs();
}
// handle setting the active thumbers
foreach (array_keys($ret['thumber']['active']) as $k) {
$ret['thumber']['active'][$k] = isset($values['thumbnail_generation'][$k]);
}
// if new thumbers available, clear failed thumbnails for retry
if (!$thumbs_cleared) {
DG_Thumb::purgeFailedThumbs();
}
// handle modified CSS
if (trim($ret['css']['text']) !== trim($values['css'])) {
$ret['css']['text'] = trim($values['css']);
}
return $ret;
}
