/**
* Front-end display of widget.
*
* @see WP_Widget::widget()
*
* @param array $args Widget arguments.
* @param array $instance Saved values from database.
*/
public function widget($args, $instance)
{
// no subscribe target. fail early
if (empty($instance['href'])) {
return;
}
extract($args);
if (!isset($instance['ref'])) {
$instance['ref'] = 'widget';
}
if (!function_exists('facebook_get_subscribe_button')) {
require_once dirname(dirname(__FILE__)) . '/social-plugins.php';
}
$subscribe_button_html = facebook_get_subscribe_button($instance);
if (!(is_string($subscribe_button_html) && $subscribe_button_html)) {
return;
}
echo $before_widget;
$title = apply_filters('widget_title', empty($instance['title']) ? '' : $instance['title'], $instance, $this->id_base);
if ($title) {
echo $before_title . esc_html($title) . $after_title;
}
echo $subscribe_button_html;
echo $after_widget;
}
/**
* Add Subscribe Button(s) to post content
* Adds a subscribe button above the post, below the post, or both above and below the post depending on stored preferences.
*
* @since 1.1
* @param string $content existing content
* @return string passed content with Subscribe Button markup prepended, appended, or both.
*/
function facebook_the_content_subscribe_button($content)
{
global $post;
// Send Button should not be the only content
if (!$content) {
return $content;
}
$options = get_option('facebook_subscribe_button');
if (!is_array($options)) {
$options = array();
}
if (!class_exists('Facebook_User')) {
require_once dirname(dirname(__FILE__)) . '/facebook-user.php';
}
$facebook_user = Facebook_User::get_user_meta(get_the_author_meta('ID'), 'fb_data', true);
if (!($facebook_user && isset($facebook_user['fb_uid']))) {
return $content;
}
if (isset($facebook_user['username'])) {
$options['href'] = 'https://www.facebook.com/' . $facebook_user['username'];
} else {
$options['href'] = 'https://www.facebook.com/profile.php?' . http_build_query(array('id' => $facebook_user['fb_uid']));
}
if ($options['position'] === 'top') {
$options['ref'] = 'above-post';
return facebook_get_subscribe_button($options) . $content;
} else {
if ($options['position'] === 'bottom') {
$options['ref'] = 'below-post';
return $content . facebook_get_subscribe_button($options);
} else {
if ($options['position'] === 'both') {
$options['ref'] = 'above-post';
$above = facebook_get_subscribe_button($options);
$options['ref'] = 'below-post';
return $above . $content . facebook_get_subscribe_button($options);
}
}
}
// don't break the filter
return $content;
}
