class-framework-widgets.php

 /**
  * AVIA COMBO WIDGET
  *
  * Widget that retrieves, stores and displays the number of twitter and rss followers
  *
  * @package AviaFramework
  * @todo replace the widget system with a dynamic one, based on config files for easier widget creation
  */

 if (!class_exists('avia_fb_likebox'))
 {
         class avia_fb_likebox extends WP_Widget {

                 function __construct() {
                         //Constructor
                         $widget_ops = array('classname' => 'avia_fb_likebox', 'description' => 'A widget that displays a facebook Likebox to a facebook page of your choice' );
                         parent::__construct( 'avia_fb_likebox', THEMENAME.' Facebook Likebox', $widget_ops );
                 }

                 function widget($args, $instance)
                 {
                         // prints the widget

                         $this->fbsdk();

                         extract($args, EXTR_SKIP);
                         if(empty($instance['url'])) return;
                         $url            = $instance['url'];
                         $height         = $instance['height'];
                         $border         = $instance['border'];
                         $profiles       = 3000; // since the height determines the number of images loaded
                         $faces          = "true";
                         $extraClass = "";
                         $style          = "";

                         if(strpos($height, "%") === false && strpos($height, "px") === false) $height = $height."px";

                         if(strpos($height, "%") !== false)
                         {
                                 $extraClass = "av_facebook_widget_wrap_positioner";
                         }


                         echo $before_widget;
                         echo "<div class='av_facebook_widget_wrap {$extraClass} av_facebook_widget_wrap_border_{$border}'>";
                         echo '<div class="fb-page" data-href="'.$url.'" data-width="100%" data-height="'.$instance['height'].'" data-small-header="false" data-adapt-container-width="true" data-hide-cover="false" data-show-facepile="'.$instance['fb-images'].'" data-show-posts="'.$instance['fb-posts'].'"><div class="fb-xfbml-parse-ignore"></div></div>';
                         echo "</div>";
                         echo $after_widget;
                 }


                 function update($new_instance, $old_instance)
                 {
                         $instance = $old_instance;
                         foreach($new_instance as $key=>$value)
                         {
                                 $instance[$key] = strip_tags($new_instance[$key]);
                         }

                         return $instance;
                 }

                 function form($instance) {
                         //widgetform in backend

                         $instance = wp_parse_args( (array) $instance, array('url' => 'https://www.facebook.com/kriesi.at', 'height' => '258px', 'border' => 'yes', 'fb-posts' => 'yes', 'fb-image' => 'yes') );
                         $html = new avia_htmlhelper();
                         $elementCat = array("name"      => "",
                                                                 "desc"  => "",
                                                     "id"        => $this->get_field_name('border'),
                                                     "type"      => "select",
                                                     "std"   => strip_tags($instance['border']),
                                                     "class" => "",
                                                     "no_first" => true,
                                                     "subtype" => array('Yes, display border'=>'yes', 'No, do not display border'=>'no'));

                         $fbpost = array("name"      => "",
                                                                 "desc"  => "",
                                                     "id"        => $this->get_field_name('fb-posts'),
                                                     "type"      => "select",
                                                     "std"   => strip_tags($instance['fb-posts']),
                                                     "class" => "",
                                                     "no_first" => true,
                                                     "subtype" => array('Yes, display the posts'=>'yes', 'No, do not display the posts'=>'no'));

                         $fbimage = array("name"      => "",
                                                                 "desc"  => "",
                                                     "id"        => $this->get_field_name('fb-image'),
                                                     "type"      => "select",
                                                     "std"   => strip_tags($instance['fb-image']),
                                                     "class" => "",
                                                     "no_first" => true,
                                                     "subtype" => array('Yes, display images'=>'true', 'No, do not display images'=>'false'));

         ?>
                         <p>
                         <label for="<?php echo $this->get_field_id('url'); ?>">Enter the url to the Page. Please note that it needs to be a link to a <strong>facebook fanpage</strong>. Personal profiles are not allowed!
                         <input class="widefat" id="<?php echo $this->get_field_id('url'); ?>" name="<?php echo $this->get_field_name('url'); ?>" type="text" value="<?php echo esc_attr($instance['url']); ?>" /></label>
                         </p>


                         <p>
                         <label for="<?php echo $this->get_field_id('height'); ?>">Enter the widget height in pixel or % <br/><small>(100% would create a widget of equal height and width)</small>
                         <input class="widefat" id="<?php echo $this->get_field_id('height'); ?>" name="<?php echo $this->get_field_name('height'); ?>" type="text" value="<?php echo esc_attr($instance['height']); ?>" /></label>
                         </p>


                         <p><label for="<?php echo $this->get_field_id('border'); ?>">Display Border around the widget?
                         <?php echo $html->select($elementCat); ?>
                         </label></p>

             <p><label for="<?php echo $this->get_field_id('fb-posts'); ?>">Display Posts?
                         <?php echo $html->select($fbpost); ?>
                         </label></p>

             <p><label for="<?php echo $this->get_field_id('fb-images'); ?>">Display Facebook Images?
                         <?php echo $html->select($fbimage); ?>
                         </label></p>


                 <?php
                 }

                 function fbsdk() { ?>
                 <div id="fb-root"></div>
                         <script>(function(d, s, id) {
 var js, fjs = d.getElementsByTagName(s)[0];
 if (d.getElementById(id)) return;
 js = d.createElement(s); js.id = id;
 js.src = "//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.5";
 fjs.parentNode.insertBefore(js, fjs);
 }(document, 'script', 'facebook-jssdk'));</script>

                         <?php

                         add_action('wp_footer', 'sdk', 50);
                 }
         }
 }