/**
* Sanitize widget form values as they are saved.
*
* @see WP_Widget::update()
*
* @param array $new_instance Values just sent to be saved.
* @param array $old_instance Previously saved values from database.
*
* @return array Updated safe values to be saved.
*/
public function update($new_instance, $old_instance)
{
$instance = array();
if (!empty($new_instance['title'])) {
$instance['title'] = strip_tags($new_instance['title']);
}
if (!class_exists('Facebook_Follow_Button')) {
require_once dirname(dirname(__FILE__)) . '/class-facebook-follow-button.php';
}
$follow_button = Facebook_Follow_Button::fromArray($new_instance);
if ($follow_button) {
if (!class_exists('Facebook_Follow_Button_Settings')) {
require_once dirname(dirname(dirname(__FILE__))) . '/admin/settings-follow-button.php';
}
return array_merge($instance, Facebook_Follow_Button_Settings::html_data_to_options($follow_button->toHTMLDataArray()));
}
return $instance;
}
/**
* Sanitize Follow Button settings before they are saved to the database.
*
* @since 1.1
*
* @param array $options Follow Button options
* @return array clean option sets. note: we remove Follow Button social plugin default options, storing only custom settings (e.g. dark color scheme stored, light is default and therefore not stored)
*/
public static function sanitize_options($options)
{
if (!is_array($options) || empty($options)) {
return array();
}
self::require_follow_button_builder();
// Handle display preferences first
$clean_options = parent::sanitize_options($options);
if (isset($clean_options['show_on'])) {
self::update_display_conditionals('follow', $clean_options['show_on'], self::get_show_on_choices());
unset($clean_options['show_on']);
}
unset($options['show_on']);
if (isset($options['show_faces'])) {
$options['show_faces'] = true;
} else {
$options['show_faces'] = false;
}
if (isset($options['width'])) {
$options['width'] = absint($options['width']);
}
// href required for follow button
// set href contextual to the post author, not at settings
// fake it here to pass sanitization, then remove before save
$options['href'] = 'https://www.facebook.com/zuck';
$follow_button = Facebook_Follow_Button::fromArray($options);
if ($follow_button) {
$follow_button_options = self::html_data_to_options($follow_button->toHTMLDataArray());
// remove the dummy value set above
// remove here instead of html_data_to_options to separate widget usage with its real href
unset($follow_button_options['href']);
return array_merge($clean_options, $follow_button_options);
}
return $clean_options;
}
/**
* convert an options array into an object.
*
* @since 1.1
*
* @param array $values associative array
* @return Facebook_Follow_Button follow object
*/
public static function fromArray($values)
{
if (!is_array($values) || empty($values)) {
return;
}
$follow_button = new Facebook_Follow_Button();
if (isset($values['href'])) {
$follow_button->setURL($values['href']);
}
if (isset($values['layout'])) {
$follow_button->setLayout($values['layout']);
}
if (isset($values['show_faces']) && ($values['show_faces'] === true || $values['show_faces'] === 'true' || $values['show_faces'] == 1)) {
$follow_button->showFaces();
}
if (isset($values['width'])) {
$follow_button->setWidth(absint($values['width']));
}
if (isset($values['font'])) {
$follow_button->setFont($values['font']);
}
if (isset($values['colorscheme'])) {
$follow_button->setColorScheme($values['colorscheme']);
}
if (isset($values['kid_directed_site']) && ($values['kid_directed_site'] === true || $values['kid_directed_site'] === 'true' || $values['kid_directed_site'] == 1)) {
$follow_button->isKidDirectedSite();
}
return $follow_button;
}
/**
* Generate HTML for a follow button based on passed options.
*
* @since 1.1
*
* @param array $options customizations
* @return string follow button HTML for use with the Facebook SDK for JavaScript
*/
function facebook_get_follow_button($options = array())
{
// need a subscription target
if (!is_array($options) || empty($options['href'])) {
return '';
}
if (!class_exists('Facebook_Follow_Button')) {
require_once dirname(__FILE__) . '/class-facebook-follow-button.php';
}
$follow_button = Facebook_Follow_Button::fromArray($options);
if (!$follow_button) {
return '';
}
$html = $follow_button->asHTML(array('class' => array('fb-social-plugin')));
if (is_string($html) && $html) {
return "\n" . $html . "\n";
}
return '';
}