<?php
/*
    Plugin Name: AddFunc Slides
    Plugin URI:
    Description: An intuitively manageable Slide content type with shortcode & widget interfaces for easy slideshow insertion. Includes standard slideshow options, while still providing fully CSS-styleable output.
    Version: 2.3
    Author: AddFunc
    Author URI: http://addfunc.com/
    @since 3.9.1
           ______
       _  |  ___/   _ _ __   ____
     _| |_| |__| | | | '_ \ / __/™
    |_ Add|  _/| |_| | | | | (__
      |_| |_|   \__,_|_| |_|\___\
*/


/*
     T A X O N O M I E S
     ===================
     Register Slidesets taxonomy
*/

if(!function_exists('aFregslidesets')){
  function aFregslidesets(){
    $labels = array(
      'name'                    => _x('Slidesets','taxonomy general name'),
      'singular_name'           => _x('Slideset','taxonomy singular name'),
      'search_items'            => __('Search Slidesets'),
      'popular_items'           => __('Popular Slidesets'),
      'all_items'               => __('All Slidesets'),
      'parent_item'             => __('Parent Slideset'),
      'parent_item_colon'       => __('Parent Slideset:'),
      'separate_items_with_commas' => __('Separate Slidesets with commas'),
      'add_or_remove_items'     => __('Add or remove tags'),
      'choose_from_most_used'   => __('Choose from the most used Slidesets'),
      'not_found'               => __('No Slidesets found'),
      'separatewith_commas'     => __('Separate Slidesets with commas'),
      'edit_item'               => __('Edit Slideset'),
      'update_item'             => __('Update Slideset'),
      'add_new_item'            => __('Add New Slideset'),
      'new_item_name'           => __('New Slideset Name'),
      'menu_name'               => __('Slidesets'),
    );
    $args = array(
      'hierarchical'            => true,
      'show_admin_column'       => true,
      'labels'                  => $labels,
      'rewrite'                 => array('slug' => 'slideset'),
    );
    register_taxonomy('slidesets','slides',$args);
  }
  add_action('init','aFregslidesets');
}


/*
    C U S T O M   P O S T   T Y P E
    ===============================
    Register Slides post type
*/

if(!function_exists('aFslds_post_type')){
  add_action('init','aFslds_post_type',0);
  function aFslds_post_type(){
    $labels = array(
      'name'                  => _x('Slides','post type general name'),
      'singular_name'         => _x('Slide','post type singular name'),
      'add_new'               => __('Add New'),
      'add_new_item'          => __('Add New'),
      'edit_item'             => __('Edit Slide'),
      'new_item'              => __('New Slide'),
      'view_item'             => __('View Slide'),
      'all_items'             => __('All Slides'),
      'search_items'          => __('Search Slides'),
      'not_found'             => __('No Slides found'),
      'not_found_in_trash'    => __('No Slides found in Trash'),
      'menu_name'             => 'Slides'
   );
    $show_in_admin = '';
    if(!current_user_can('edit_posts')){
      $show_in_admin = false;
    }
    else{
      $show_in_admin = true;
    }
    $supports = array('title','thumbnail','editor','revisions');
    $args = array(
      'menu_icon'             => 'dashicons-format-gallery',
      'labels'                => $labels,
      'public'                => false,
      'show_ui'               => $show_in_admin,
      'show_in_menu'          => $show_in_admin,
      'show_in_admin_bar'     => $show_in_admin,
      'query_var'             => 'slides',
      'rewrite'               => array('slug'=>'slides'),
      'has_archive'           => false,
      'hierarchical'          => false,
      'supports'              => $supports,
      'register_meta_box_cb'  => 'aFSMetaBoxes',
      'taxonomies'            => array('slideshows')
   );
    register_post_type('slides',$args);
  }
}


/*
    F U N C T I O N S
    =================
*/

if(!function_exists('aFAutoParam')){
  function aFAutoParam($key,$value,$default=NULL){
    if(empty($value)){ # If there is no value
      if($default){ # ...and there is a default
        $value = $default; # ...use the default
      }
    }
    if(!empty($value)){ # If there is a value and...
      if((is_string($value)) && (!is_numeric($value)) && ($value!="true") && ($value!="false") && (substr($value,0,1)!= "{")){
        # $value is a string and is not a number and is not one of keywords "true" or "false" and is not in curly-brackets
        $quotes = '"';
      }
      else{
        # $value is not a string or is a number or is one of keywords "true" or "false" or is in curly-brackets
        $quotes = '';
      }
      return $key.": ".$quotes.$value.$quotes.",\n        "; # Output with/without quotes
    }
  }
}
if(!function_exists('aFslug')){
  function aFslug($echo=true){ # Lengthy code to define aFslug()
    $slug = basename(get_permalink());
    do_action('before_slug',$slug);
    $slug = apply_filters('slug_filter',$slug);
    if($echo)echo $slug;
    do_action('after_slug',$slug);
    return $slug;
  }
}
if(!function_exists('aFget_posts')){
  function aFget_posts($args = null){
    $defaults = array(
      'numberposts'       => 5,        'offset'     => 0,
      'category'          => 0,        'orderby'    => 'date',
      'order'             => 'ASC',    'include'    => array(),
      'exclude'           => array(),  'meta_key'   => '',
      'meta_value'        => '',       'post_type'  => 'post',
      'suppress_filters'  => true
    );
    $r = wp_parse_args($args,$defaults);
    if(empty($r['post_status']))
      $r['post_status'] =('attachment' == $r['post_type'])?'inherit':'publish';
    if(!empty($r['numberposts']) && empty($r['posts_per_page']))
      $r['posts_per_page'] = $r['numberposts'];
    if(!empty($r['category']))
      $r['cat'] = $r['category'];
    if(!empty($r['include'])){
      $incposts = wp_parse_id_list($r['include']);
      $r['posts_per_page'] = count($incposts); // only the number of posts included
      $r['post__in'] = $incposts;
    }elseif(!empty($r['exclude']))
      $r['post__not_in'] = wp_parse_id_list($r['exclude']);
    $r['ignore_sticky_posts'] = true;
    $r['no_found_rows'] = true;
    $aFget_posts = new WP_Query;
    return $aFget_posts->query($r);
  }
}


/*
    J S   &   C S S   in   H E A D
    ==============================
    Conditional Styles & Scripts
*/

add_filter('the_posts','aFSJSCSS_if_Sc');
function aFSJSCSS_if_Sc($posts){
  if(empty($posts))return $posts;
  $shortcode_found = 0;
  foreach($posts as $post){
    if(stripos($post->post_content,'[slides')=== false){
      $shortcode_found = false;
    }
    else{
      $shortcode_found = true;
    }
  }
  if($shortcode_found){
    aFSJSCSS();
    aFSScFn();
  }
  return $posts;
}
function aFSJSCSS(){
  $aFSOptions = get_option('aFSOpts');
  if (!get_option('aFSDefaultCSS')){
    wp_enqueue_style('aFSStylesheet',plugins_url('css/addfunc-slides.css',__FILE__));
  }
  wp_register_script('aFslides',plugins_url('js/addfunc-slides.js',__FILE__));
  wp_enqueue_script('aFslides');
}
$aFSInit = "";
$aFSOpts = "";


/*
    S H O R T C O D E
    =================
*/

function aFSScFn(){
  function aFSSc($atts){
    $aFSMrgd = shortcode_atts(array(

      'slideset'        => '',
      'auto'            => '',
      'speed'           => '',
      'prevnext'        => '',
      'pause'           => '',
      'tabs'            => '',
      'tabsfirst'       => '',
      'stoppable'       => '',
      'pauseonhover'    => '',
      'fullscreen'      => '',
      'swipe'           => '',
      'class'           => '',
      'color'           => '',
      'size'            => '',
      'height'          => '',
      'ratio'           => '',
      'tabsclass'       => '',
      'order'           => 'ASC',
      'orderby'         => '',
      'meta_key'        => '',

   ),$atts,'slides');
    extract($aFSMrgd);
    $aFSOptions = get_option('aFSOpts');
    if(!$color){
      if(!empty($aFSOptions['aFSDefaultColor'])){
        $color = $aFSOptions['aFSDefaultColor'];
      }
    }
    if(empty($size)){
      if(!empty($aFSOptions['aFSDefaultSize'])){
        $size = $aFSOptions['aFSDefaultSize'];
      }
    }
    $aFSInst = 'aFS'.uniqid(); // http://stackoverflow.com/questions/22873093/generate-different-code-in-wp-footer-for-each-shortcode-instance
    if(!$orderby){
      $orderby = 'meta_value_num';
      $meta_key = 'aFSPrior';
    }
    if(($slideset === 'all')||empty($slideset)){
      $slideset = '';
      $slidesetID = 'all-slides';
    }
    else {
      $slidesetID = $slideset;
    }
    if ((strpos($ratio,':') == true)||(strpos($ratio,'-') == true)||(strpos($ratio,'x') == true)) {
      preg_match('/\d+/', $ratio, $fstnum);
      $fst = $fstnum[0];
      preg_match('/(\d+)\D*$/', $ratio, $sndnum);
      $snd = end($sndnum);
      $prc = ($snd/$fst) * 100;
      $ratio = $prc."%";
    } else {
      if(($ratio == 'HD')) {
        $ratio = "56.25%";
      } elseif ($ratio == 'half') {
        $ratio = "50%";
      } elseif ($ratio == 'old') {
        $ratio = "74%";
      } elseif ($ratio == 'standard') {
        $ratio = "75%";
      } elseif ($ratio == 'square') {
        $ratio = "100%";
      } elseif ($ratio == 'portrait') {
        $ratio = "150%";
      }
    }
    $args = array(
      'slidesets'       => $slideset,
      'post_type'       => 'slides',
      'order'           => $order,
      'orderby'         => $orderby,
      'meta_key'        => $meta_key,
      'posts_per_page'  => -1
   );
    $aFSPosts = aFget_posts($args);
    global $post,$aFSOpts,$aFDependsOn;

    $tmp_post = $post;
    ob_start();
    $outputThumbs = "";
    $outputLabels = "";
    if($tabs && (($tabs != 'labels') && ($tabs != 'true'))){ $outputThumbs = true; } /* Output the thumbnail */
    if($tabs && (($tabs != 'thumbnails') && ($tabs != 'true'))){ $outputLabels = true; } /* Output the label */ ?>
      <div id="<?php echo $slidesetID; ?>" class="addFuncSlides <?php echo $aFSInst; if($class){echo ' '.$class;} if($pause){ echo ' with-pause-control'; } if($tabs){ echo ' with-tabs'; } if($outputThumbs){ echo ' with-thumbnails'; } if($outputLabels){ echo ' with-labels'; } if($prevnext != 'false'){ echo ' with-prev-next-control'; } if($tabsfirst){ echo ' tabs-first'; } if($ratio){echo ' ratio-set';}elseif($height){echo ' height-set';}?>" <?php if($color || $size){ echo ' style="'; if($color){ echo 'color:'.$color.';'; } if($size){ echo 'font-size:'.$size.';'; } echo '"';} ?>>
<?php if($tabs && $tabsfirst){ ?>
        <ol class="aFTabs<?php if($tabsclass){echo " ".$tabsclass;} if($outputThumbs){ echo " thumbnails"; } if($outputLabels){ echo " labels"; } if($tabs == 'true'){ echo " empty-tabs"; } ?>">
<?php   foreach($aFSPosts as $aFSPost): setup_postdata($aFSPost); ?>
          <li id="<?php echo $aFSPost->post_name;?>-tab"><?php if($outputThumbs){ echo get_the_post_thumbnail($aFSPost->ID,'thumbnail',array('alt' => $aFSPost->post_title.' thumbnail')); } /* Output the thumbnail */ ?>
<?php     if($outputLabels){ ?>
            <div class="tab-label"><?php echo $aFSPost->post_title; ?></div>
<?php     } ?>
          </li>
<?php   endforeach; ?>
        </ol><!-- /.aFTabs  -->
<?php } ?>
        <div class="aFSlides slideset"<?php if($ratio){echo ' style="position: relative;"';}?>>
<?php foreach($aFSPosts as $aFSPost): setup_postdata($aFSPost);
        $aFSGetSType = get_post_meta($aFSPost->ID,'aFSldTyp',true);
        $aFSGetMnImg = get_post_meta($aFSPost->ID,'aFSMnImg',true);
        $aFSGetMnAlt = get_post_meta($aFSPost->ID,'aFSMnAlt',true);
        $aFSGetMnLnk = get_post_meta($aFSPost->ID,'aFSMnLnk',true);
        $aFSGetMTarg = get_post_meta($aFSPost->ID,'aFSMTarg',true)? ' target="_blank"' : '';
        $aFSGetBgImg = get_post_meta($aFSPost->ID,'aFSBgImg',true);
        $aFSGetClass = get_post_meta($aFSPost->ID,'aFSClass',true); ?>
          <figure class="slide<?php if($aFSGetSType){echo ' of-'.$aFSGetSType;}else{echo ' of-imagery';} if($aFSGetClass){echo ' '.$aFSGetClass;} ?>" id="<?php echo $aFSPost->post_name; ?>"<?php
            if($aFSGetBgImg||$ratio||$height){
              echo ' style="';
              if($aFSGetBgImg){echo 'background-image: url('.$aFSGetBgImg.'); ';}
              if($ratio){echo 'padding-top: ' .$ratio.'; height: 0; ';}
              elseif($height){echo 'height: ' .$height.'; ';}
              echo '"';
            } ?>>
            <div class="slide-content"<?php if($ratio){echo ' style="position: absolute; top: 0; left: 0; right: 0; bottom: 0;"';}?>>
<?php   if($aFSGetMnImg){ ?>
<?php     if($aFSGetMnLnk){ ?>
            <a class="slide-main-img-link" href="<?php echo $aFSGetMnLnk; ?>"<?php echo $aFSGetMTarg; ?>>
<?php     } ?>
              <img class="slide-main-img" src="<?php echo $aFSGetMnImg; ?>" alt="<?php echo $aFSGetMnAlt; ?>" />
<?php     if($aFSGetMnLnk){ ?>
            </a>
<?php     }
        }
        the_content(); ?>
            </div>
<?php   if(current_user_can('edit_post')){ echo '          <a class="post-edit-link" href="'.get_edit_post_link($aFSPost).'"/><span class="dashicons dashicons-edit"></span> Edit</a>';} ?>
          </figure>
<?php endforeach; ?>
        </div><!-- /.aFSlides  -->
<?php if(!empty($tabs) && ($tabs != 'false') && ($tabs != 'true') && !$tabsfirst){ ?>
        <ol class="aFTabs<?php if($tabsclass){echo " ".$tabsclass;} if($outputThumbs){ echo " thumbnails"; } if($outputLabels){ echo " labels"; } ?>">
<?php   foreach($aFSPosts as $aFSPost): setup_postdata($aFSPost); ?>
          <li id="<?php echo $aFSPost->post_name;?>-tab"><?php if($outputThumbs){ echo get_the_post_thumbnail($aFSPost->ID,'thumbnail',array('alt' => $aFSPost->post_title.' thumbnail')); } ?>
<?php     if($outputLabels){ ?><div class="tab-label"><?php echo $aFSPost->post_title; ?></div>
<?php     } ?>
          </li>
<?php   endforeach; ?>
        </ol><!-- /.aFTabs  -->
<?php } ?>
      </div><!-- /#<?php echo $slidesetID; ?> -->
<?php

    $aFSOpts .= "
    var ".$aFSInst." ={
        ".

        aFAutoParam('auto',$auto).
        aFAutoParam('speed',$speed).
        aFAutoParam('tabs',$tabs).
        aFAutoParam('prevNext',$prevnext).
        aFAutoParam('pause',$pause).
        aFAutoParam('stoppable',$stoppable).
        aFAutoParam('pauseOnHover',$pauseonhover).
        aFAutoParam('fullScreen',$fullscreen).
        aFAutoParam('swipe',$swipe).

    "};
    aFSlides('.".$aFSInst."',".$aFSInst.");";
    $post = $tmp_post;
    return ob_get_clean();
  }
  add_shortcode('slides','aFSSc');
  global $aFSInit;
  $aFSInit = true;
}


/*
    W I D G E T
    ===========
*/

class aFSWdgt extends WP_Widget{
  protected static $did_script = false;
  function __construct()
  {
    parent::__construct(
      'aFSWdgt',// Base ID
      'Slides',// Name
      array('description'=> __('Display your Slides in an AddFunc slideshow.','text_domain'),)// Args
    );
    if(!self::$did_script && is_active_widget(false,false,$this->id_base,true)){
      add_action('wp_enqueue_scripts','aFSJSCSS');
      wp_enqueue_script('aFSJSCSS');
      self::$did_script = true;
    }
  }
  public function widget($args,$instance)
  {
    $tabs = "";
    extract($instance);
    $aFSOptions = get_option('aFSOpts');
    if(!$color){
      if(!empty($aFSOptions['aFSDefaultColor'])){
        $color = $aFSOptions['aFSDefaultColor'];
      }
    }
    if(empty($size)){
      if(!empty($aFSOptions['aFSDefaultSize'])){
        $size = $aFSOptions['aFSDefaultSize'];
      }
    }
    $aFSInst = 'aFS'.uniqid();
    $title = apply_filters('widget_title',$instance['title']);
    echo $args['before_widget'];
    $termid = get_term($slideset,'slidesets');
    $slideset = $termid->slug;
    if(!$orderby){
      $orderby = 'meta_value_num';
      $meta_key = 'aFSPrior';
    }
    $order = empty($order)? 'ASC' : 'DESC';
    if($pagenation){
      $tabs = true;
    }
    if(empty($swipe)){ $swipe = "horizontal"; }
    if ((strpos($ratio,':') == true)||(strpos($ratio,'x') == true)) {
      preg_match('/\d+/', $ratio, $fstnum);
      $fst = $fstnum[0];
      preg_match('/(\d+)\D*$/', $ratio, $sndnum);
      $snd = end($sndnum);
      $prc = ($snd/$fst) * 100;
      $ratio = $prc."%";
    } else {
      if(($ratio == 'HD')) {
        $ratio = "56.25%";
      } elseif ($ratio == 'half') {
        $ratio = "50%";
      } elseif ($ratio == 'old') {
        $ratio = "74%";
      } elseif ($ratio == 'standard') {
        $ratio = "75%";
      } elseif ($ratio == 'square') {
        $ratio = "100%";
      } elseif ($ratio == 'portrait') {
        $ratio = "150%";
      }
    }
    $aFSArgs = array(
      'slidesets'       => $slideset,
      'post_type'       => 'slides',
      'order'           => $order,
      'orderby'         => $orderby,
      'meta_key'        => $meta_key,
      'posts_per_page'  => -1
   );
    $outputThumbs = "";
    $outputLabels = "";
    if(($pagenation==="T")||($pagenation==="LT")){ $outputThumbs = true; } /* Output the thumbnail */
    if(($pagenation==="L")||($pagenation==="LT")){ $outputLabels = true; } /* Output the label */
    if(($slideset === 'all')||empty($slideset)){
      $slideset = '';
      $slidesetID = 'all-slides';
    }
    else {
      $slidesetID = $slideset;
    }
    $aFSPosts = aFget_posts($aFSArgs); ?>
      <div id="<?php echo $slidesetID; ?>" class="addFuncSlides <?php echo $aFSInst; if($class){echo " ".$class;} if($pause){ echo " with-pause-control"; } if($tabs){ echo " with-tabs"; } if($outputThumbs){ echo " with-thumbnails"; } if($outputLabels){ echo " with-labels"; } if($prevNext != 'false'){ echo " with-prev-next-control"; } if($tabsFirst){ echo " tabs-first"; } if($ratio){echo ' ratio-set';}elseif($height){echo ' height-set';} ?>" <?php if($color || $size){ echo ' style="'; if($color){ echo 'color:'.$color.';'; } if($size){ echo 'font-size:'.$size.';'; } echo '"';} ?>>
<?php if($pagenation && $tabsFirst){ ?>
        <ol class="aFTabs<?php if($tabsclass){echo " ".$tabsclass;} if($outputThumbs){ echo " thumbnails"; } if($outputLabels){ echo " labels"; } if($tabs == 'true'){ echo " empty-tabs"; } ?>">
<?php   foreach($aFSPosts as $aFSPost): setup_postdata($aFSPost); ?>
          <li id="<?php echo $aFSPost->post_name;?>-tab"><?php if($outputThumbs){ echo get_the_post_thumbnail($aFSPost->ID,'thumbnail',array('alt' => $aFSPost->post_title.' thumbnail')); } ?>
<?php     if($outputLabels){ ?>
            <div class="tab-label"> <?php echo $aFSPost->post_title; ?></div>
<?php     } ?>
          </li>
<?php   endforeach; ?>
        </ol><!-- /.aFTabs  -->
<?php } ?>
        <div class="aFSlides slideset"<?php if($ratio){echo ' style="position: relative;"';}?>>
<?php foreach($aFSPosts as $aFSPost): setup_postdata($aFSPost);
        $aFSGetSType = get_post_meta($aFSPost->ID,'aFSldTyp',true);
        $aFSGetMnImg = get_post_meta($aFSPost->ID,'aFSMnImg',true);
        $aFSGetMnAlt = get_post_meta($aFSPost->ID,'aFSMnAlt',true);
        $aFSGetMnLnk = get_post_meta($aFSPost->ID,'aFSMnLnk',true);
        $aFSGetMTarg = get_post_meta($aFSPost->ID,'aFSMTarg',true)? ' target="_blank"' : '';
        $aFSGetBgImg = get_post_meta($aFSPost->ID,'aFSBgImg',true);
        $aFSGetClass = get_post_meta($aFSPost->ID,'aFSClass',true); ?>
          <figure class="slide<?php if($aFSGetSType){echo ' of-'.$aFSGetSType;}else{echo ' of-imagery';} if($aFSGetClass){echo ' '.$aFSGetClass;} ?>" id="<?php echo $aFSPost->post_name;?>" <?php
            if($aFSGetBgImg||$ratio||$height){
              echo ' style="';
              if($aFSGetBgImg){echo 'background-image: url('.$aFSGetBgImg.'); ';}
              if($ratio){echo 'padding-top: ' .$ratio.'; height: 0; ';}
              elseif($height){echo 'height: ' .$height.'; ';}
              echo '"';
            } ?>>
            <div class="slide-content"<?php if($ratio){echo ' style="position: absolute; top: 0; left: 0; right: 0; bottom: 0;"';}?>>
<?php   if($aFSGetMnImg){ ?>
<?php     if($aFSGetMnLnk){ ?>
            <a class="slide-main-img-link" href="<?php echo $aFSGetMnLnk; ?>"<?php echo $aFSGetMTarg; ?>>
<?php     } ?>
              <img class="slide-main-img" src="<?php echo $aFSGetMnImg; ?>" alt="<?php echo $aFSGetMnAlt; ?>" />
<?php     if($aFSGetMnLnk){ ?>
            </a>
<?php     }
        }
        the_content(); ?>
            </div>
<?php if(current_user_can('edit_post')){ echo '          <a class="post-edit-link" href="'.get_edit_post_link($aFSPost).'"/><span class="dashicons dashicons-edit"></span> Edit</a>';} ?>
          </figure>
<?php endforeach; ?>
        </div><!-- /.aFSlides  -->
<?php if(($pagenation && ($pagenation != "ON")) && !$tabsFirst){ ?>
        <ol class="aFTabs<?php if($tabsclass){echo " ".$tabsclass;} if($outputThumbs){ echo " thumbnails"; } if($outputLabels){ echo " labels"; } ?>">
<?php   foreach($aFSPosts as $aFSPost): setup_postdata($aFSPost); ?>
          <li id="<?php echo $aFSPost->post_name;?>-tab"><?php if($outputThumbs){ echo get_the_post_thumbnail($aFSPost->ID,'thumbnail',array('alt' => $aFSPost->post_title.' thumbnail')); } ?>
<?php     if($outputLabels){ ?>
            <div class="tab-label"><?php echo $aFSPost->post_title; ?></div>
<?php     } ?>
          </li>
<?php   endforeach; ?>
        </ol><!-- /.aFTabs  -->
<?php } ?>
      </div><!-- /#<?php echo $slidesetID; ?> -->
<?php
    echo $args['after_widget'];
    global $aFSOpts;
    $aFSOpts .= "
    var ".$aFSInst." ={
        ".
        # General Options
        aFAutoParam('auto',$auto).
        aFAutoParam('speed',$speed).
        aFAutoParam('tabs',$tabs).
        aFAutoParam('prevNext',$prevNext).
        aFAutoParam('pause',$pause).
        aFAutoParam('stoppable',$stoppable).
        aFAutoParam('pauseOnHover',$pauseOnHover).
        aFAutoParam('fullScreen',$fullScreen).
        aFAutoParam('swipe',$swipe).
    "};
    aFSlides('.".$aFSInst."',".$aFSInst.");";
    global $aFSInit;
    $aFSInit = true;
  }
#   Back-end widget form
public function form($instance)
 {
    extract($instance);
    // Storing IDs = less queries

    $sldstGfid =        $this->get_field_id('slideset');
    $autoGfid =         $this->get_field_id('auto');
    $speedGfid =        $this->get_field_id('speed');
    $pagenationGfid =   $this->get_field_id('pagenation');
    $tabsFirstGfid =    $this->get_field_id('tabsFirst');
    $prevNextGfid =     $this->get_field_id('prevNext');
    $pauseGfid =        $this->get_field_id('pause');
    $stoppableGfid =    $this->get_field_id('stoppable');
    $pauseOnHoverGfid = $this->get_field_id('pauseOnHover');
    $fullScreenGfid =   $this->get_field_id('fullScreen');
    $swipeGfid =        $this->get_field_id('swipe');
    $classGfid =        $this->get_field_id('class');
    $colorGfid =        $this->get_field_id('color');
    $sizeGfid =         $this->get_field_id('size');
    $tabsclassGfid =    $this->get_field_id('tabsclass');
    $orderGfid =        $this->get_field_id('order');
    $orderbyGfid =      $this->get_field_id('orderby');

    ?>
    <p><label for="<?php echo $titlegfid; ?>"><?php _e('Title:'); ?></label>
    <input class="widefat" id="<?php echo $titlegfid; ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($title); ?>" />
    </p>
<?php
    $aFSSldsets = get_terms('slidesets'); ?>
    <div>
<?php if(!empty($aFSSldsets) && !is_wp_error($aFSSldsets)){ ?>
      <label for="<?php echo $sldstGfid; ?>" title="Choose the set of Slides to display in this slideshow.">Slideset: </label>
      <select id="<?php echo $sldstGfid; ?>" name="<?php echo $this->get_field_name('slideset'); ?>">
<?php   foreach($aFSSldsets as $aFSSldset){
          if($aFSSldset->term_id==esc_attr($slideset))
          {
            $selected = ' selected="selected"';
          }else{
            $selected = '';
          } ?>
        <option value="<?php echo $aFSSldset->term_id; ?>"<?php echo $selected; ?>><?php echo $aFSSldset->name; ?></option>
<?php   } ?>
        <option value=""<?php if(empty($slideset)){ echo ' selected="selected"';} ?>>All Slides</option>
      </select>
      <?php
    }
    else{ ?>
      <label for="<?php echo $sldstGfid; ?>" title="Create Slidesets and choose one here, to display a select group of Slides.">Slideset: </label>
      <select id="<?php echo $sldstGfid; ?>" name="<?php echo $this->get_field_name('slideset'); ?>">
        <option value=""<?php if(empty($slideset)){ echo ' selected="selected"';} ?>>All Slides</option>
      </select>
<?php } ?>
    </div>
    <fieldset class="wp-core-ui">
      <div>
        <input class="aFswitch" type="checkbox" name="<?php echo $this->get_field_name('auto'); ?>" id="<?php echo $autoGfid; ?>" value="true" <?php checked('true',$instance['auto']); ?> />
        <label class="aFswitch" for="<?php echo $autoGfid; ?>" title="Automatically advance through the slides. Default: OFF (false)">Auto-advance Slides <span class="aFswitch" style="display:none;"><b class="wp-ui-highlight" data-default="0">ON</b><b data-default="1">OFF</b></span></label>
      </div>
      <div>
        <label class="aFtext" for="<?php echo $speedGfid; ?>" title="Time between slide transitions,in milliseconds. Default: 7000">Time between Slides (speed):</label> <input id="<?php echo $speedGfid; ?>" class="small-text" type="number" min="0" step="1" name="<?php echo $this->get_field_name('speed'); ?>" value="<?php echo esc_attr($instance['speed']); ?>" />
        <span class="description">1000&nbsp;=&nbsp;1&nbsp;sec.</span>
      </div>
      <div>
        <input class="aFswitch" type="checkbox" name="<?php echo $this->get_field_name('pauseOnHover'); ?>" id="<?php echo $pauseOnHoverGfid; ?>" value="false" <?php checked('false',$instance['pauseOnHover']); ?> />
        <label class="aFswitch" for="<?php echo $pauseOnHoverGfid; ?>" title="Pause the slideshow whenever a mouse rolls over it. Default: ON (true)"><span class="aFhide">Don't </span><span class="aFup">p</span>ause on hover/mouseover <span class="aFswitch" style="display:none;"><b class="wp-ui-highlight" data-default="1">ON</b><b data-default="0">OFF</b></span></label>
      </div>
      <div>
        <input class="aFswitch" type="checkbox" name="<?php echo $this->get_field_name('pause'); ?>" id="<?php echo $pauseGfid; ?>" value="true" <?php checked('true',$instance['pause']); ?> />
        <label class="aFswitch" for="<?php echo $pauseGfid; ?>" title="Generate controller for pausing auto-advancement. Default: OFF (false)"><span class="aFhide">Add a </span>Pause controller <span class="aFswitch" style="display:none;"><b class="wp-ui-highlight" data-default="0">ON</b><b data-default="1">OFF</b></span></label>
      </div>
      <div>
        <input class="aFswitch" type="checkbox" name="<?php echo $this->get_field_name('prevNext'); ?>" id="<?php echo $prevNextGfid; ?>" value="false" <?php checked('false',$instance['prevNext']); ?> />
        <label class="aFswitch" for="<?php echo $prevNextGfid; ?>" title="Generate controls for advancing(next Slide)and regressing(previous Slide). Default: ON (true)"><span class="aFhide">Remove </span>Previous &amp; Next controls <span class="aFswitch" style="display:none;"><b class="wp-ui-highlight" data-default="1">ON</b><b data-default="0">OFF</b></span></label>
      </div>
      <div><label for="<?php echo $pagenationGfid; ?>" title="Add tabs, labels and/or thumbnails.">Tabs (pagenation): </label>
        <select id="<?php echo $pagenationGfid; ?>" name="<?php echo $this->get_field_name('pagenation'); ?>" type="text">
          <option value="" <?php echo ($pagenation=='')?'selected':''; ?>>OFF</option>
          <option value="ON" <?php echo ($pagenation=='ON')?'selected':''; ?>>ON</option>
          <option value="L" <?php echo ($pagenation=='L')?'selected':''; ?>>Labels</option>
          <option value="T" <?php echo ($pagenation=='T')?'selected':''; ?>>Thumbnails</option>
          <option value="LT" <?php echo ($pagenation=='LT')?'selected':''; ?>>Labels &amp; Thumbnails</option>
        </select>
      </div>
      <div>
        <input class="aFswitch" type="checkbox" name="<?php echo $this->get_field_name('tabsFirst'); ?>" id="<?php echo $tabsFirstGfid; ?>" value="true" <?php checked('true',$instance['tabsFirst']); ?> />
        <label class="aFswitch" for="<?php echo $tabsFirstGfid; ?>" title="Place the tabs before the slideshow. Default: NO (false)">Place tabs <span style="text-decoration:underline;">before</span> slideshow <span class="aFswitch" style="display:none;"><b class="wp-ui-highlight" data-default="0">YES</b><b class="wp-ui-primary" data-default="1">NO</b></span></label>
      </div>
      <div><label for="<?php echo $swipeGfid; ?>" title="Change swipe direction and behavior or disallow swiping.">Swipe: </label>
        <select id="<?php echo $swipeGfid; ?>" name="<?php echo $this->get_field_name('swipe'); ?>" type="text">
          <option value="horizontal" <?php echo ($swipe=='horizontal')?'selected':''; ?>>Horizontal (&#11020;)</option>
          <option value="vertical" <?php echo ($swipe=='vertical')?'selected':''; ?>>Vertical (&#11021;)</option>
          <option value="both" <?php echo ($swipe=='both')?'selected':''; ?>>Both (prevent scrolling)</option>
          <option value="any" <?php echo ($swipe=='any')?'selected':''; ?>>Any (allow scrolling)</option>
          <option value="false" <?php echo ($swipe=='false')?'selected':''; ?>>OFF</option>
        </select>
      </div>
      <div>
        <input class="aFswitch" type="checkbox" name="<?php echo $this->get_field_name('stoppable'); ?>" id="<?php echo $stoppableGfid; ?>" value="false" <?php checked('false',$instance['stoppable']); ?> />
        <label class="aFswitch" for="<?php echo $stoppableGfid; ?>" title="All navigational controls stop the slideshow from auto-advancing until the pause control is clicked. Default: ON (true)"><span class="aFhide">Don't </span><span class="aFup">s</span>top auto-advance on interaction <span class="aFswitch" style="display:none;"><b class="wp-ui-highlight" data-default="1">ON</b><b data-default="0">OFF</b></span></label>
      </div>
      <div>
        <input class="aFswitch" type="checkbox" name="<?php echo $this->get_field_name('fullScreen'); ?>" id="<?php echo $fullScreenGfid; ?>" value="true" <?php checked('true',$instance['fullScreen']); ?> />
        <label class="aFswitch" for="<?php echo $fullScreenGfid; ?>" title="Generate a control for displaying the slideshow in fullscreen mode. Default: OFF (false)"><span class="aFhide">Add a </span>Fullscreen controller <span class="aFswitch" style="display:none;"><b class="wp-ui-highlight" data-default="0">ON</b><b data-default="1">OFF</b></span></label>
      </div>
      <div>
        <input class="aFswitch" type="checkbox" name="<?php echo $this->get_field_name('order'); ?>" id="<?php echo $orderGfid; ?>" value="DESC" <?php checked('ASC',$instance['order']); ?> />
        <label class="aFswitch" for="<?php echo $orderGfid; ?>" title="Ascend = sort Slide from lowest to highest value. Descend = sort Slide from highest to lowest value. Default: DESCEND"><span class="aFhide">Descend </span><span class="aFup">s</span>ort order <span class="aFswitch" style="display:none;"><b class="wp-ui-highlight" data-default="1">ASCEND</b><b class="wp-ui-primary" data-default="0">DESCEND</b></span></label>
      </div>
      <p>
        <label for="<?php echo $orderbyGfid; ?>" title="Which property to sort the slides by. Default: date">Sort by: </label><input id="<?php echo $orderbyGfid; ?>" class="widefat" type="text" name="<?php echo $this->get_field_name('orderby'); ?> " placeholder="examples: date, priority, title, name, ID, rand" value="<?php echo esc_attr($instance['orderby']); ?>" />
      </p>
      <p>
        <label for="<?php echo $colorGfid; ?>" title="Color of the controls (may affect text in Slides as well). Default: inherited">Color: </label><input id="<?php echo $colorGfid; ?>" class="widefat" type="text" name="<?php echo $this->get_field_name('color'); ?> " placeholder="examples: #fff, rgb(255,135,125), orange" value="<?php echo esc_attr($instance['color']); ?>" />
      </p>
      <p>
        <label for="<?php echo $sizeGfid; ?>" title="Size of the controls (may affect text in Slides as well). Default: inherited">Size: </label><input id="<?php echo $sizeGfid; ?>" class="widefat" type="text" name="<?php echo $this->get_field_name('size'); ?> " placeholder="examples: 22px, 1.6em, 110%" value="<?php echo esc_attr($instance['size']); ?>" />
      </p>
      <p>
        <label for="<?php echo $heightGfid; ?>" title="Overall height of slideshow. Default: unspecified">Height: </label><input id="<?php echo $heightGfid; ?>" class="widefat" type="text" name="<?php echo $this->get_field_name('height'); ?> " placeholder="examples: 600px, 100vh, calc(400px + 2em), auto" value="<?php echo esc_attr($instance['height']); ?>" />
      </p>
      <p>
        <label for="<?php echo $ratioGfid; ?>" title="Aspect ratio of slideshow. Overrides Height. Default: unspecified">Aspect ratio: </label><input id="<?php echo $ratioGfid; ?>" class="widefat" type="text" name="<?php echo $this->get_field_name('ratio'); ?> " placeholder="examples: 16:9, 4x3 or preset (HD, square, half, portrait)" value="<?php echo esc_attr($instance['ratio']); ?>" />
      </p>
      <p>
        <label for="<?php echo $classGfid; ?>" title="Add CSS classes to the .addFuncSlides wrapper as needed.">Slideshow classes: </label><input id="<?php echo $classGfid; ?>" class="widefat" type="text" name="<?php echo $this->get_field_name('class'); ?>" value="<?php echo esc_attr($instance['class']); ?>" />
      </p>
      <p>
        <label for="<?php echo $tabsclassGfid; ?>" title="Add CSS classes to the .aFTabs wrapper as needed. Note: doesn't work if 'Tabs' is 'ON' unless 'Place tabs before slideshow' is also 'YES' (checked). Works with all other options ('Labels', 'Thumbnails', etc.)">Tabs classes: </label><input id="<?php echo $tabsclassGfid; ?>" class="widefat" type="text" name="<?php echo $this->get_field_name('tabsclass'); ?>" value="<?php echo esc_attr($instance['tabsclass']); ?>" />
      </p>
    </fieldset>

<?php }
#   Sanitize widget form values as they are saved
  public function update($new_instance,$old_instance)
 {
    $instance = array();

    $instance['title']      =  (!empty($new_instance['title']))
                          ? strip_tags($new_instance['title']): '';
    $instance['slideset']   =  (!empty($new_instance['slideset']))
                          ? strip_tags($new_instance['slideset']): '';
    $instance['auto']       =  (!empty($new_instance['auto']))
                          ? strip_tags($new_instance['auto']): '';
    $instance['speed']      =  (!empty($new_instance['speed']))
                          ? strip_tags($new_instance['speed']): '';
    $instance['pagenation'] =  (!empty($new_instance['pagenation']))
                          ? strip_tags($new_instance['pagenation']): '';
    $instance['tabsFirst']  =  (!empty($new_instance['tabsFirst']))
                          ? strip_tags($new_instance['tabsFirst']): '';
    $instance['prevNext']   =  (!empty($new_instance['prevNext']))
                          ? strip_tags($new_instance['prevNext']): '';
    $instance['pause']      =  (!empty($new_instance['pause']))
                          ? strip_tags($new_instance['pause']): '';
    $instance['stoppable']  =  (!empty($new_instance['stoppable']))
                          ? strip_tags($new_instance['stoppable']): '';
    $instance['pauseOnHover']= (!empty($new_instance['pauseOnHover']))
                          ? strip_tags($new_instance['pauseOnHover']): '';
    $instance['fullScreen'] =  (!empty($new_instance['fullScreen']))
                          ? strip_tags($new_instance['fullScreen']): '';
    $instance['swipe']      =  (!empty($new_instance['swipe']))
                          ? strip_tags($new_instance['swipe']): '';
    $instance['order']      =  (!empty($new_instance['order']))
                          ? strip_tags($new_instance['order']): '';
    $instance['orderby']    =  (!empty($new_instance['orderby']))
                          ? strip_tags($new_instance['orderby']): '';
    $instance['color']      =  (!empty($new_instance['color']))
                          ? strip_tags($new_instance['color']): '';
    $instance['size']       =  (!empty($new_instance['size']))
                          ? strip_tags($new_instance['size']): '';
    $instance['height']     =  (!empty($new_instance['height']))
                          ? strip_tags($new_instance['height']): '';
    $instance['ratio']      =  (!empty($new_instance['ratio']))
                          ? strip_tags($new_instance['ratio']): '';
    $instance['class']      =  (!empty($new_instance['class']))
                          ? strip_tags($new_instance['class']): '';
    $instance['tabsclass']  =  (!empty($new_instance['tabsclass']))
                          ? strip_tags($new_instance['tabsclass']): '';
    return $instance;
  }
}// class
#   register widget
function reg_aFSWdgt(){
    register_widget('aFSWdgt');
}
add_action('widgets_init','reg_aFSWdgt');


/*
    J S   in   F O O T E R
    ======================
    Javascript Initialization
*/

function aFSInit(){
  global $aFSInit;
  if($aFSInit){ ?>
<?php
    echo "<script type='text/javascript'>";
    global $aFSOpts;
    echo $aFSOpts."\n";
    echo "</script>\n";
  }
}
add_action('wp_footer','aFSInit');


/*
    M E T A B O X
    =============
*/

add_action('add_meta_boxes','aFSMetaBoxes');
function aFSMetaBoxes()
{
  if(current_user_can('manage_options')){
    add_meta_box('aFSMetaBox','Slide Options','aFSMB','slides','normal','high');
  }
}
function aFSMB($post)
{
  $aFSVals = get_post_custom($post->ID);
  $aFSPriority = isset($aFSVals['aFSPrior'])? esc_attr($aFSVals['aFSPrior'][0]): '';
  $aFSlideType = isset($aFSVals['aFSldTyp'])? esc_attr($aFSVals['aFSldTyp'][0]): '';
  $aFSMnImgURL = isset($aFSVals['aFSMnImg'])? esc_attr($aFSVals['aFSMnImg'][0]): '';
  $aFSMnATgLnk = isset($aFSVals['aFSMnLnk'])? esc_attr($aFSVals['aFSMnLnk'][0]): '';
  $aFSMLnkTarg = isset($aFSVals['aFSMTarg'])? esc_attr($aFSVals['aFSMTarg'][0]): '';
  $aFSMnAltAtt = isset($aFSVals['aFSMnAlt'])? esc_attr($aFSVals['aFSMnAlt'][0]): '';
  $aFSBgImgURL = isset($aFSVals['aFSBgImg'])? esc_attr($aFSVals['aFSBgImg'][0]): '';
  $aFSClassVal = isset($aFSVals['aFSClass'])? esc_attr($aFSVals['aFSClass'][0]): '';
  wp_nonce_field('aFSNonce','aFSMBNonce');
  ?>
  <label for="aFSPrior">
    <p>
      <span>Priority:</span> <input id="aFSPrior" type="number" step="any" class="small-text" size="36" name="aFSPrior" value="<?php echo $aFSPriority; ?>" /><br />
      <span class="description">Can be used to custom-sort Slides. Example: <code>[slides&nbsp;orderby=slide]</code></span>
    </p>
  </label>
  <p>
    <span style="padding-right: 10px;">Type:</span>
      <label for="aFSTypeImgr" style="display:inline;padding-right: 12px;">
        <input type="radio" name="aFSldTyp" id="aFSTypeImgr" value="imagery" <?php if(isset( $aFSVals['aFSldTyp']))checked($aFSVals['aFSldTyp'][0],'imagery'); ?> />Imagery
      </label>
      <label for="aFSTypeCont" style="display:inline;padding-right: 12px;">
        <input type="radio" name="aFSldTyp" id="aFSTypeCont" value="content" <?php if(isset( $aFSVals['aFSldTyp']))checked($aFSVals['aFSldTyp'][0],'content'); ?> />Content
      </label>
    <span class="description">(Requires&nbsp;theme&nbsp;or&nbsp;skin&nbsp;support.)</span>
  </p>
  <fieldset name="main-image" class="imgedit-group" style="background-color: #fdfdfd;">
    <h3>Main Image</h3>
    <label for="aFSMnImg">
      <p>
        <div>Source:</div>
        <input id="aFSMnImg" type="text" class="full-text" size="36" name="aFSMnImg" value="<?php echo $aFSMnImgURL; ?>" />
        <input id="aFSMnImgBttn" type="button" class="button" value="Choose Image" /><br />
        <span class="description">Choose/upload a main image for this Slide.</span> <span class="dashicons dashicons-info" title="See notice below."></span>

      </p>
    </label>
    <label for="aFSMnAlt">
      <p>
        <div>Alt Attribute:</div>
        <input id="aFSMnAlt" type="text" class="full-text" size="36" name="aFSMnAlt" value="<?php echo $aFSMnAltAtt; ?>" /><br />
        <span class="description">Enter an alt attribute for this image (good for search engine ranking).</span>
      </p>
    </label>
    <label for="aFSMnLnk">
      <p class="wp-core-ui">
        <div>Link:</div>
        <input id="aFSMnLnk" type="text" class="full-text" size="36" name="aFSMnLnk" value="<?php echo $aFSMnATgLnk; ?>" />
        <input id="aFSMnLnkBttn" type="button" class="button" value="Choose Post" /><br />
        <span class="description">Link this image to a Page,a Post or a custom URL.</span> <span class="dashicons dashicons-warning wp-ui-text-highlight" title="See notice below."></span>
      </p>
    </label>
    <div>
      <input id="aFSMTarg" type="checkbox" name="aFSMTarg" value="_blank" <?php checked($aFSMLnkTarg,'_blank'); ?> />
      <label for="aFSMTarg">Open link in a new tab.</label>
    </div>
  </fieldset>
  <label for="aFSBgImg">
    <p>
      <div>Background Image:</div>
      <input id="aFSBgImg" type="text" class="full-text" size="36" name="aFSBgImg" value="<?php echo $aFSBgImgURL; ?>" />
      <input id="aFSBgImgBttn" type="button" class="button" value="Choose Image" /><br />
      <span class="description">Choose/upload a background image for this Slide.</span> <span class="dashicons dashicons-info" title="See notice below."></span>
    </p>
  </label>
  <label for="aFSClass">
    <p>
      <div>CSS Classes:</div>
      <input id="aFSClass" type="text" class="full-text" size="36" name="aFSClass" value="<?php echo $aFSClassVal; ?>" /><br />
      <span class="description">Add CSS classes to this Slide as needed.</span>
    </p>
  </label>
  <hr />
  <p><span class="dashicons dashicons-info"></span> <span class="description"><strong>Note</strong>: The <span style="font-style:normal;border:1px solid #ddd;display:inline-block;padding-left: 4px;padding-right: 4px;border-radius:2px;">Choose Image</span> file uploader/selector buttons (in this version of AddFunc Slides) don't provide the popup windows that they should, <span style="font-weight:bold;">until</span> the Slide is saved. This is a known issue. The image-path fields do however accept and store any valid data that is manually entered. </span></p>
  <p class="wp-core-ui"><span class="dashicons dashicons-warning wp-ui-text-highlight"></span> <span class="description"><strong>Warning</strong>: The link selector (in this version of AddFunc Slides) highjacks the function used for adding links in the main editor (for Slides only, not Pages, Posts, etc.). The adverse result is that <span style="font-weight:bold;">after</span> you save the Slide, the <span style="font-style:normal;border:1px solid #ddd;display:inline-block;padding-left: 4px;padding-right: 4px;border-radius:2px;">link</span> Quicktag (in Text view) adds your chosen URL to the Slide Options <span style="font-style:normal;">Link</span> field instead of your highlighted text in the editor. Therefore, links have to be added in the editor manually or created in Visual mode. Additionally, the <span style="font-style:normal;border:1px solid #ddd;display:inline-block;padding-left: 4px;padding-right: 4px;border-radius:2px;">Choose Post</span> button doesn't provide the popup window that it should <span style="font-weight:bold;">until</span> the Slide is saved. These are known issues. The Link field does however store any valid data that is entered.</span></p>
  <?php
}
add_action('save_post','aFSSaveMB');
function aFSSaveMB($post_id){
  if(defined('DOING_AUTOSAVE') && DOING_AUTOSAVE)return;
  if(!isset($_POST['aFSMBNonce'])|| !wp_verify_nonce($_POST['aFSMBNonce'],'aFSNonce'))return;
  if(!current_user_can('manage_options'))return;
  if(isset($_POST['aFSPrior']))update_post_meta($post_id,'aFSPrior',$_POST['aFSPrior']);
  if(isset($_POST['aFSldTyp']))update_post_meta($post_id,'aFSldTyp',$_POST['aFSldTyp']);
  if(isset($_POST['aFSMnImg']))update_post_meta($post_id,'aFSMnImg',$_POST['aFSMnImg']);
  if(isset($_POST['aFSMnLnk']))update_post_meta($post_id,'aFSMnLnk',$_POST['aFSMnLnk']);
  $aFSMTargChk =(isset($_POST['aFSMTarg']) && $_POST['aFSMTarg'])? '_blank' : '';
    update_post_meta($post_id,'aFSMTarg',$aFSMTargChk);
  if(isset($_POST['aFSMnAlt']))update_post_meta($post_id,'aFSMnAlt',$_POST['aFSMnAlt']);
  if(isset($_POST['aFSBgImg']))update_post_meta($post_id,'aFSBgImg',$_POST['aFSBgImg']);
  if(isset($_POST['aFSClass']))update_post_meta($post_id,'aFSClass',$_POST['aFSClass']);
}
add_action('admin_print_scripts-post.php','aFSAdminJS',11);
function aFSAdminJS(){
  global $post_type;
  if('slides' == $post_type)
  wp_enqueue_script('addfunc-slides-uploader',plugins_url('js/addfunc-slides-uploader.js',__FILE__),array('jquery'));
//  wp_enqueue_script('wp-link');
}


/*
    S E T T I N G S   P A G E
    =========================
    Thanks to Jeroen Sormani http://wpsettingsapi.jeroensormani.com/
*/

add_action('admin_menu','aFSAddAdminMenu');
add_action('admin_init','aFSSettingsInit');
function aFSAddAdminMenu() {
  add_submenu_page( 'edit.php?post_type=slides', 'Slides Settings', 'Settings', 'manage_options', 'slides', 'aFSOptionsPage' );
}
function aFSSettingsInit() {
  register_setting( 'aFSOptsPg', 'aFSOpts' );
  add_settings_section(
    'aFSOptsPgSection',
    __( '', 'aFS' ),
    'aFSSettingsSection',
    'aFSOptsPg'
  );
  add_settings_field(
    'aFSDefaultCSS',
    __('Don\'t load default stylesheet','aFS'),
    'aFSDefaultCSSOpt',
    'aFSOptsPg',
    'aFSOptsPgSection'
  );
  add_settings_field(
    'aFSDefaultColor',
    __('Default color of controls','aFS'),
    'aFSDefaultColorOpt',
    'aFSOptsPg',
    'aFSOptsPgSection'
  );
  add_settings_field(
    'aFSDefaultSize',
    __('Default size of controls','aFS'),
    'aFSDefaultSizeOpt',
    'aFSOptsPg',
    'aFSOptsPgSection'
  );
}
function aFSDefaultCSSOpt() {
  $aFSOptions = get_option('aFSOpts');
  if (!$aFSOptions['aFSDefaultCSS']) {
    $aFSOptions['aFSDefaultCSS'] = 0;
  }
  ?>
  <input type='checkbox' name='aFSOpts[aFSDefaultCSS]' <?php checked( $aFSOptions['aFSDefaultCSS'], 1 ); ?> value='1'>
  <span class="description"><?php echo __( 'addfunc-slides.css is loaded by default whenever there is a Slides instance. You can turn it off here.', 'aFS' ); ?></span>
  <?php
}
function aFSDefaultColorOpt() {
  $aFSOptions = get_option('aFSOpts');
  if (!$aFSOptions['aFSDefaultColor']) {
    $aFSOptions['aFSDefaultColor'] = 0;
  }
  ?>
  <input type="text" name='aFSOpts[aFSDefaultColor]' placeholder="ex: #fff, rgb(0,45,90)" value="<?php if(!empty($aFSOptions['aFSDefaultColor'])){echo esc_attr($aFSOptions['aFSDefaultColor']);}; ?>">
  <span class="description"><?php echo __( 'Note: text within Slides may also inherit this color. Use higher ranking CSS selectors to override as needed.', 'aFS' ); ?></span>
  <?php
}
function aFSDefaultSizeOpt() {
  $aFSOptions = get_option('aFSOpts');
  if (!$aFSOptions['aFSDefaultSize']) {
    $aFSOptions['aFSDefaultSize'] = 0;
  }
  ?>
  <input type="text" name='aFSOpts[aFSDefaultSize]' placeholder="ex: 22px, 1.6em, 110%" value="<?php if(!empty($aFSOptions['aFSDefaultSize'])){echo esc_attr($aFSOptions['aFSDefaultSize']);}; ?>">
  <span class="description"><?php echo __( 'Note: text within Slides may also inherit this size. Use higher ranking CSS selectors to override as needed.', 'aFS' ); ?></span>
  <?php
}
function aFSSettingsSection() {
}
function aFSOptionsPage() { ?>
 <div class="wrap">
  <form action='options.php' method='post'>
    <h1>Slides Settings</h1>
<?php
    settings_fields( 'aFSOptsPg' );
    do_settings_sections( 'aFSOptsPg' );
    submit_button(); ?>
  </form>
</div>
<?php
}


/*
    E D I T   P A G E   C O L U M N S
    =================================
    Thanks to bamadesigner: https://github.com/bamadesigner/manage-wordpress-posts-using-bulk-edit-and-quick-edit
*/

add_filter('manage_posts_columns','aFS_manage_posts_columns',10,2);
function aFS_manage_posts_columns($columns,$post_type){
  switch($post_type){
    case 'slides':
      $new_columns = array();
      foreach($columns as $key => $value){
        $new_columns[$key] = $value;
        if($key == 'title'){
          $new_columns['aFSPrior_column'] = 'Priority';
          $new_columns['aFSldTyp_column'] = 'Type';
        }
      }
      return $new_columns;
  }
  return $columns;
}
add_filter('manage_edit-slides_sortable_columns','aFS_manage_sortable_columns');
function aFS_manage_sortable_columns($sortable_columns){
  $sortable_columns['aFSPrior_column'] = 'aFSPrior';
  $sortable_columns['aFSldTyp_column'] = 'aFSldTyp';
  return $sortable_columns;
}
add_action('manage_posts_custom_column','aFS_manage_posts_custom_column',10,2);
function aFS_manage_posts_custom_column($column_name,$post_id){
  switch($column_name){
    case 'aFSPrior_column':
      echo '<div id="aFSPrior-'.$post_id.'">'.get_post_meta($post_id,'aFSPrior',true).'</div>';
    break;
    case 'aFSldTyp_column':
      echo '<div id="aFSldTyp-'.$post_id.'">'.get_post_meta($post_id,'aFSldTyp',true).'</div>';
    break;
  }
}
add_action('pre_get_posts','aFS_pre_get_posts',1);
function aFS_pre_get_posts($query){
  if($query->is_main_query() && ($orderby = $query->get('orderby'))){
    switch($orderby){
      case 'aFSPrior':
        $query->set('meta_key','aFSPrior');
        $query->set('orderby','meta_value_num');
      break;
      case 'aFSldTyp':
        $query->set('meta_key','aFSldTyp');
        $query->set('orderby','meta_value');
      break;
    }
  }
}


/*
    Q U I C K   E D I T   &   B U L K   E D I T
    ===========================================
*/

add_action('bulk_edit_custom_box','aFS_bulk_quick_edit_custom_box',10,2);
add_action('quick_edit_custom_box','aFS_bulk_quick_edit_custom_box',10,2);
function aFS_bulk_quick_edit_custom_box($column_name,$post_type){
  switch($post_type){
    case 'slides':
      switch($column_name){
        case 'aFSPrior_column': ?>
          <fieldset class="inline-edit-col-left">
            <div class="inline-edit-col">
              <label>
                <span class="title">Priority</span>
                <span class="input-text-wrap">
                  <input type="number" step="any" value="" name="aFSPrior">
                </span>
              </label>
            </div>
          </fieldset>
<?php   break;
        case 'aFSldTyp_column': ?>
          <fieldset class="inline-edit-col-left">
            <div class="inline-edit-col aFSldTypRadio">
              <label>
                <span class="title">Type</span>
                <span class="input-text-wrap">
                  <label style="display:inline;">
                    <input type="radio" name="aFSldTyp" value="imagery" /> Imagery
                  </label>&nbsp;&nbsp;
                  <label style="display:inline;">
                    <input type="radio" name="aFSldTyp" value="content" /> Content
                  </label>
                </span>
              </label>
            </div>
          </fieldset>
<?php   break;
      }
    break;
  }
}
add_action('admin_print_scripts-edit.php','aFS_enqueue_admin_scripts');
function aFS_enqueue_admin_scripts(){
  global $post_type;
  if('slides' == $post_type){
    wp_enqueue_script('aFSAdminJS',plugins_url('js/addfunc-slides-admin.js',__FILE__),array('jquery'),null,true);
  }
}
add_action('save_post','aFSSaveBEorQE',10,2);
function aFSSaveBEorQE($post_id,$post){
  if(empty($_POST))
    return $post_id;
  if(isset($_POST['_inline_edit']) && ! wp_verify_nonce($_POST['_inline_edit'],'inlineeditnonce'))
    return $post_id;
  if(defined('DOING_AUTOSAVE') && DOING_AUTOSAVE)
    return $post_id;
  if(isset($post->post_type) && $post->post_type == 'revision')
    return $post_id;
  switch( $post->post_type ) {
    case 'slides':
      $custom_fields = array('aFSPrior','aFSldTyp');
      foreach($custom_fields as $field){
        if(array_key_exists($field,$_POST))update_post_meta($post_id,$field,$_POST[$field]);
      }
    break;
  }
}
add_action('wp_ajax_aFS_bulk_quick_save_edit','aFS_bulk_quick_save_edit');
function aFS_bulk_quick_save_edit(){
  // we need the post IDs
  $post_ids =(isset($_POST['post_ids']) && !empty($_POST['post_ids']))? $_POST['post_ids'] : NULL;
  // if we have post IDs
  if(!empty($post_ids) && is_array($post_ids)){
    // get the custom fields
    $custom_fields = array('aFSPrior','aFSldTyp');
    foreach($custom_fields as $field){
      // if it has a value,doesn't update if empty on bulk
      if(isset($_POST[ $field]) && !empty($_POST[ $field])){
        // update for each post ID
        foreach($post_ids as $post_id){
          update_post_meta($post_id,$field,$_POST[$field]);
        }
      }
    }
  }
}


/*
    M C E   B U T T O N S
    =====================
*/
  # Register tinyMCE Plugin & Button
  add_action('init','aFSRegMCEPlugin');
  function aFSRegMCEPlugin(){
    add_filter('mce_external_plugins','aFSMCEPlugin');
    add_filter('mce_buttons_4','aFSRegButton');
  }
  # tinyMCE Plugin
  function aFSMCEPlugin($plugin_array){
    global $post_type;
    if('slides' == $post_type){
      $plugin_array['aFSMCE'] = plugins_url('js/addfunc-slides-mce.js',__FILE__);
      return $plugin_array;
    }
    else {
      return $plugin_array;
    }
  }
  # tinyMCE Buttons
  function aFSRegButton($buttons){
    global $post_type;
    if('slides' == $post_type){
      array_push($buttons,'aFSLeft');
      array_push($buttons,'aFSRight');
      array_push($buttons,'aFSUp');
      array_push($buttons,'aFSDown');
      array_push($buttons,'aFSClock');
      array_push($buttons,'aFSCntrClock');
      array_push($buttons,'aFSMor');
      array_push($buttons,'aFSLes');
      return $buttons;
    }
    else {
      return $buttons;
    }
  }
  function aFSEnqCSS() {
    global $post_type;
    if('slides' == $post_type){
      wp_enqueue_style('aFScss', plugins_url('/css/mce-icons.css', __FILE__));
    }
  }
  add_action('admin_enqueue_scripts', 'aFSEnqCSS');


/*
    H E L P   T A B
    ===============
*/

add_action('load-post.php','aFSHelpTab');
function aFSHelpTab() {
  function aFSHTShortcodes(){
    $sldsets = get_terms('slidesets');
    if (!empty($sldsets) && !is_wp_error($sldsets)){
      ob_start();
      echo '<p>'.__( 'Here are the shortcodes to use for your current Slidesets:' ).'</p>
      <div style="max-height:100px;overflow:auto;">';
      foreach ($sldsets as $sldset){
        echo '
        <div><strong>'.$sldset->name.'</strong>: <code>[slides slideset='.$sldset->slug.']</code></div>';
      }
      echo '</div>';
      return ob_get_clean();
    } else {
      ob_start();
      echo '
      <p>'.__( 'You currently have no Slidesets. You can create one by clicking on Slidesets in the Slides menu (or <a href="/wp-admin/edit-tags.php?taxonomy=slidesets&post_type=slides" target="_blank">here</a><span class="dashicons dashicons-welcome-add-page" style="opacity:0.4;"></span>) or by adding a Slide to a Slideset when editing it.' ).'</p>';
      return ob_get_clean();
    }
  }
  $screen = get_current_screen();
  $screen->add_help_tab( array(
    'id'      => 'aFSHelpTab',
    'title'   => __('Slideshows'),
    'content' => '<p>'.__( 'You can display all<span style="color:#c30;">*</span> of your Slides by adding [slides] to any Page, Post or anywhere else your theme and plugins let you add a <a href="http://support.wordpress.com/shortcodes/" target="_blank">shortcode</a><span class="dashicons dashicons-external" style="opacity:0.4;"></span>. To display a specific Slideset, use [slides slideset=my-slideset] (replacing "my-slideset" with your Slideset\'s slug*).' ).'</p>'
    .aFSHTShortcodes().'
    <p>'.__( 'There are more parameters (settings) you can add to your shortcode to change it\'s end result (e.g. [slides slideset=my-slideset prevnext=false] will remove the slideshow\'s "Previous" and "Next" buttons). No parameters are required unless customization is necessary. Here is a list of all parameters (in the convention: <code>parameter</code> "default value" — <span class="description">Description; optional values</span>):' ).'</p>
    <!-- <span class="dashicons dashicons-arrow-up" style="background:#f6fbfd;color:#aeb1b3;line-height: 0;height: 1px;margin: 0 auto -14px;display:block;position: relative;"></span> -->
    <!-- <div style="background:#e1e1e1;color:#aeb1b3;line-height: 0;width: auto;height: 1px;margin: 0 auto -14px;box-shadow: inset 0 0 20px #f6fbfd;display:block;position: relative;"></div> -->
    <ul style="max-height:173px;border-top:1px solid #e1e1e1;border-bottom:1px solid #e1e1e1;overflow-y:scroll;"><!--  -->
      <li style="padding-top:0.5em;"><code>slideset</code> "" — <span class="description">Selects a specific Slideset; slideset-slug or all (shows all slides)</span></li>
      <li><code>auto</code> false — <span class="description">Automate Slide transitioning; true or false</span></li>
      <li><code>speed</code> 7000 (7 seconds) — <span class="description">Duration each Slide is displayed; number of milliseconds (no commas)</span></li>
      <li><code>prevnext</code> true — <span class="description">Adds "Previous" and "Next" buttons; true or false</span></li>
      <li><code>pause</code> false — <span class="description">Adds Pause button; true or false</span></li>
      <li><code>tabs</code> false — <span class="description">Adds tabs/pager; true, false, thumbnails, labels, all or full</span></li>
      <li><code>tabsfirst</code> false — <span class="description">Outputs tabs before the slideshow; true or false</span></li>
      <li><code>stoppable</code> true — <span class="description">Stops automated transition upon user interaction; true or false</span></li>
      <li><code>pauseonhover</code> true — <span class="description">Pause on hover/mouseover; true or false</span></li>
      <li><code>fullscreen</code> false — <span class="description">Adds Fullscreen button (note <a href="http://caniuse.com/#search=fullscreen" target="_blank">limited browser support</a><span class="dashicons dashicons-external" style="opacity:0.4;"></span>); true or false</span></li>
      <li><code>swipe</code> true (horizontal) — <span class="description">Adds touchscreen swipe capability;</span>
        <ul>
          <li style="list-style-type:circle"><span class="description">true or horizontal, leftright: left = next Slide, right = previous Slide</span></li>
          <li style="list-style-type:circle"><span class="description">vertical or updown: up = next Slide, down = previous Slide</span></li>
          <li style="list-style-type:circle"><span class="description">both or all: up and/or left = next Slide, down and/or right = previous Slide</span></li>
          <li style="list-style-type:circle"><span class="description">any: up and/or left = next Slide, down and/or right = previous Slide, normal page scrolling functions simultaniously (note: in practice, upward and downward swipe only results in normal page scrolling, making this option rarely useful)</span></li>
          <li style="list-style-type:circle"><span class="description">false: removes swiping capability (scrolling is unaffected)</span></li>
        </ul>
      </li>
      <li><code>class</code> "" — <span class="description">Adds CSS class(es) to the slideset, "any css-classes"</span></li>
      <li><code>tabsclass</code> "" — <span class="description">Adds CSS class(es) to the tabs. Note: doesn\'t work if "tabs" is "true" unless "tabsfirst" is also "true". Works with all other options ("labels", "thumbnails", etc.)</span></li>
      <li><code>color</code> (inherited) — <span class="description">Sets the color of the controls (may affect text in Slides as well). Examples: #fff, rgb(255,135,125), orange</span></li>
      <li><code>size</code> (inherited) — <span class="description">Sets the size of the controls (may affect text in Slides as well). Examples: 22px, 1.6em, 110%</span></li>
      <li><code>order</code> asc — <span class="description">The order in which Slides are displayed; asc (ascending), desc (descending) </span></li>
      <li><code>orderby</code> priority — <span class="description">What the display order is based upon; date (date of Slide), priority (if set in Slide options), name (Slide name), ID (Slide ID), rand (random order)</span></li>
      <li><code>meta_key</code> "" — <span class="description">For advanced users to specify a meta_key (experimental—may eventually be removed)</span></li>
    </ul>
    <!-- <div style="background:#e1e1e1;color:#aeb1b3;line-height: 0;width: auto;height: 1px;margin: 0 auto -14px;box-shadow: inset 0 0 20px #f6fbfd;display:block;position: relative;"></div> -->
    <!-- <span class="dashicons dashicons-arrow-down" style="background:#f6fbfd;color:#aeb1b3;line-height: 0;height: 1px;margin: -14px auto 0;display:block;position: relative;"></span> -->
    <p style="color:#c30;">'.__( '*WARNING: Depending on the number of Slides this website has, adding <em>all</em> of them to a single slideshow can drastically slow down the website\'s load time when outputting the slideshow.' ).'</p>
    <p>'.__( '*Slugs: You can obtain the slug of any of your slidesets by visiting the <a href="/wp-admin/edit-tags.php?taxonomy=slidesets&post_type=slides" target="_blank">Slidesets&nbsp;page</a><span class="dashicons dashicons-welcome-add-page" style="opacity:0.4;"></span>. To learn more about slugs in general, <a href="http://codex.wordpress.org/Glossary#Slug" target="_blank">go here</a><span class="dashicons dashicons-external" style="opacity:0.4;"></span>.' ).'</p>
    <p>'.__( '<span class="dashicons dashicons-welcome-add-page" style="color:#aeb1b3;"></span> = Opens in a new tab/window.' ).'</p>
    <p>'.__( '<span class="dashicons dashicons-external" style="opacity:0.4;"></span> = Links to an external website.' ).'</p>'
  ));
}