/**
* Generate HTML for a single Like Button
*
* @param array $options like button options
* @return string HTML div for use with the JavaScript SDK
*/
function facebook_get_like_button($options = array())
{
if (!class_exists('Facebook_Like_Button')) {
require_once dirname(__FILE__) . '/class-facebook-like-button.php';
}
$like_button = Facebook_Like_Button::fromArray($options);
if (!$like_button) {
return '';
}
$html = $like_button->asHTML(array('class' => array('fb-social-plugin')));
if ($html) {
return "\n" . $html . "\n";
}
return '';
}
/**
* 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_Like_Button')) {
require_once dirname(dirname(__FILE__)) . '/class-facebook-like-button.php';
}
$like_button = Facebook_Like_Button::fromArray($new_instance);
if ($like_button) {
if (!class_exists('Facebook_Like_Button_Settings')) {
require_once dirname(dirname(dirname(__FILE__))) . '/admin/settings-like-button.php';
}
return array_merge($instance, Facebook_Like_Button_Settings::html_data_to_options($like_button->toHTMLDataArray()));
}
return $instance;
}
/**
* Sanitize Like Button settings before they are saved to the database
*
* @since 1.1
* @param array $options Like Button options
* @return array clean option sets. note: we remove Like Button social plugin default options, storing only custom settings (e.g. dark color scheme stored, light is default and therefore not stored)
*/
public static function sanitize_options($options)
{
if (!is_array($options) || empty($options)) {
return array();
}
self::require_like_button_builder();
// Handle like button display preferences first
$clean_options = parent::sanitize_options($options);
if (isset($clean_options['show_on'])) {
self::update_display_conditionals('like', $clean_options['show_on'], self::get_show_on_choices('all'));
unset($clean_options['show_on']);
}
unset($options['show_on']);
$like_button = Facebook_Like_Button::fromArray($options);
if ($like_button) {
$like_button->validate();
return array_merge($clean_options, self::html_data_to_options($like_button->toHTMLDataArray()));
}
return $clean_options;
}
/**
* Sanitize widget form values as they are saved.
*
* @see WP_Widget::update()
*
* @since 1.0
*
* @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();
$new_instance = (array) $new_instance;
if (!empty($new_instance['title'])) {
$instance['title'] = strip_tags($new_instance['title']);
}
foreach (array('share', 'show_faces') as $bool_option) {
if (isset($new_instance[$bool_option])) {
$new_instance[$bool_option] = true;
} else {
$new_instance[$bool_option] = false;
}
}
if (!class_exists('Facebook_Like_Button')) {
require_once dirname(dirname(__FILE__)) . '/class-facebook-like-button.php';
}
$like_button = Facebook_Like_Button::fromArray($new_instance);
if ($like_button) {
if (!class_exists('Facebook_Like_Button_Settings')) {
require_once dirname(dirname(dirname(__FILE__))) . '/admin/settings-like-button.php';
}
return array_merge($instance, Facebook_Like_Button_Settings::html_data_to_options($like_button->toHTMLDataArray()));
}
return $instance;
}
/**
* Facebook Like Button after header
*
* @since 1.1
*/
public static function after_header()
{
if (!class_exists('Facebook_Like_Button')) {
require_once dirname(dirname(__FILE__)) . '/social-plugins/class-facebook-like-button.php';
}
// promote Facebook for WordPress page on Facebook Developers site
$like_button = new Facebook_Like_Button(false);
$like_button->setURL('http://developers.facebook.com/wordpress/');
$like_button->setLayout('button_count');
$like_button->includeSendButton();
$like_button->setFont('arial');
$like_button->setReference('wp-admin');
echo $like_button->asHTML();
do_action('facebook_notify_plugin_conflicts');
}
/**
* convert an options array into an object
*
* @since 1.1
* @param array $values associative array
* @return Facebook_Like_Button like object
*/
public static function fromArray($values)
{
if (!is_array($values) || empty($values)) {
return;
}
$like_button = new Facebook_Like_Button();
if (isset($values['href']) && is_string($values['href'])) {
$like_button->setURL($values['href']);
}
if (isset($values['layout']) && is_string($values['layout'])) {
$like_button->setLayout($values['layout']);
}
if (isset($values['show_faces']) && ($values['show_faces'] === true || $values['show_faces'] === 'true' || $values['show_faces'] == 1)) {
$like_button->showFaces();
}
if (isset($values['send']) && ($values['send'] === true || $values['send'] === 'true' || $values['send'] == 1)) {
$like_button->includeSendButton();
}
if (isset($values['width'])) {
$like_button->setWidth(absint($values['width']));
}
if (isset($values['action'])) {
$like_button->setAction($values['action']);
}
if (isset($values['font'])) {
$like_button->setFont($values['font']);
}
if (isset($values['colorscheme'])) {
$like_button->setColorScheme($values['colorscheme']);
}
if (isset($values['ref'])) {
$like_button->setReference($values['ref']);
}
return $like_button;
}