/** * Front-end display of widget. * * @see WP_Widget::widget() * * @since 1.0 * * @param array $args Widget arguments. * @param array $instance Saved values from database. * @return void */ public function widget($args, $instance) { extract($args); if (!isset($instance['ref'])) { $instance['ref'] = 'widget'; } if (!function_exists('facebook_get_send_button')) { require_once dirname(dirname(__FILE__)) . '/social-plugins.php'; } $send_button_html = facebook_get_send_button($instance); if (!(is_string($send_button_html) && $send_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 $send_button_html; echo $after_widget; }
/** * Add Send Button(s) to post content * Adds a send button above the post, below the post, or both above and below the post depending on stored preferences. * * @since 1.1 * @param string $content existing content * @return string passed content with Send Button markup prepended, appended, or both. */ function facebook_the_content_send_button($content) { global $post; // Send Button should not be the only content if (!$content) { return $content; } $options = get_option('facebook_send_button'); if (!is_array($options)) { $options = array(); } if (!is_singular(get_post_type($post))) { $options['href'] = apply_filters('facebook_rel_canonical', get_permalink($post->ID)); } if ($options['position'] === 'top') { $options['ref'] = 'above-post'; return facebook_get_send_button($options) . $content; } else { if ($options['position'] === 'bottom') { $options['ref'] = 'below-post'; return $content . facebook_get_send_button($options); } else { if ($options['position'] === 'both') { $options['ref'] = 'above-post'; $above = facebook_get_send_button($options); $options['ref'] = 'below-post'; return $above . $content . facebook_get_send_button($options); } } } // don't break the filter return $content; }
/** * Generate a HTML div element with data-* attributes to be converted into a Send Button by the Facebook JavaScript SDK * * @since 1.1.6 * * @param array $attributes shortcode attributes. overrides site options for specific button attributes * @param string $content shortcode content. no effect * @return string send button HTML div or empty string if minimum requirements not met */ public static function send_button($attributes, $content = null) { global $post; $site_options = get_option('facebook_send_button'); if (!is_array($site_options)) { $site_options = array(); } $options = shortcode_atts(array('href' => '', 'font' => isset($site_options['font']) ? $site_options['font'] : '', 'colorscheme' => isset($site_options['colorscheme']) ? $site_options['colorscheme'] : '', 'ref' => 'shortcode'), $attributes, 'facebook_send_button'); // check for valid href value. unset if not valid, allowing for a possible permalink replacement if (is_string($options['href']) && $options['href']) { $options['href'] = esc_url_raw($options['href'], array('http', 'https')); } if (!(is_string($options['href']) && $options['href'])) { unset($options['href']); if (isset($post)) { $options['href'] = apply_filters('facebook_rel_canonical', get_permalink($post->ID)); } } foreach (array('font', 'colorscheme', 'ref') as $key) { $options[$key] = trim($options[$key]); if (!$options[$key]) { unset($options[$key]); } } if (!function_exists('facebook_get_send_button')) { require_once dirname(__FILE__) . '/social-plugins.php'; } return facebook_get_send_button($options); }