Validator for the system_theme_settings() form.
function system_theme_settings_validate($form, &$form_state) {
if (module_exists('file')) {
// Handle file uploads.
$validators = array(
'file_validate_is_image' => array(),
);
// Check for a new uploaded logo.
$file = file_save_upload('logo_upload', $validators);
if (isset($file)) {
// File upload was attempted.
if ($file) {
// Put the temporary file in form_values so we can save it on submit.
$form_state['values']['logo_upload'] = $file;
}
else {
// File upload failed.
form_set_error('logo_upload', t('The logo could not be uploaded.'));
}
}
$validators = array(
'file_validate_extensions' => array(
'ico png gif jpg jpeg apng svg',
),
);
// Check for a new uploaded favicon.
$file = file_save_upload('favicon_upload', $validators);
if (isset($file)) {
// File upload was attempted.
if ($file) {
// Put the temporary file in form_values so we can save it on submit.
$form_state['values']['favicon_upload'] = $file;
}
else {
// File upload failed.
form_set_error('favicon_upload', t('The favicon could not be uploaded.'));
}
}
// If the user provided a path for a logo or favicon file, make sure a file
// exists at that path.
if ($form_state['values']['logo_path']) {
$path = _system_theme_settings_validate_path($form_state['values']['logo_path']);
if (!$path) {
form_set_error('logo_path', t('The custom logo path is invalid.'));
}
}
if ($form_state['values']['favicon_path']) {
$path = _system_theme_settings_validate_path($form_state['values']['favicon_path']);
if (!$path) {
form_set_error('favicon_path', t('The custom favicon path is invalid.'));
}
}
}
}