<?php
/**
* Declares Customizr default settings
* Adds theme supports using WP functions
* Adds plugins compatibilities
*
* 
* @package      Customizr
* @subpackage   classes
* @since        3.0
* @author       Nicolas GUILLAUME <nicolas@themesandco.com>
* @copyright    Copyright (c) 2013, Nicolas GUILLAUME
* @link         http://themesandco.com/customizr
* @license      http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/
if ( ! class_exists( 'TC_init' ) ) :
  class TC_init {
      //declares the filtered default settings
      public $global_layout;
      public $tc_thumb_size;
      public $slider_full_size;
      public $slider_size;
      public $skins;
      public $fp_ids;
      public $socials;
      public $sidebar_widgets;
      public $footer_widgets;
      public $widgets;
      public $post_list_layout;
      public $post_formats_with_no_header;
      public $content_404;
      public $content_no_results;
      public $default_slides;

      //Access any method or var of the class with classname::$instance -> var or method():
      static $instance;

      function __construct () {

          self::$instance =& $this;
          //Default layout settings
          $this -> global_layout      = array(
                                        'r' => array(
                                            'content'       => 'span9',
                                            'sidebar'       => 'span3',
                                            'customizer'    => __( 'Right sidebar' , 'customizr' ),
                                            'metabox'       => __( 'Right sidebar' , 'customizr' ),
                                        ),
                                        'l' => array(
                                            'content'       => 'span9',
                                            'sidebar'       => 'span3',
                                            'customizer'    => __( 'Left sidebar' , 'customizr' ),
                                            'metabox'       => __( 'Left sidebar' , 'customizr' ),
                                        ),
                                        'b' => array(
                                            'content'       => 'span6',
                                            'sidebar'       => 'span3',
                                            'customizer'    => __( '2 sidebars : Right and Left' , 'customizr' ),
                                            'metabox'       => __( '2 sidebars : Right and Left' , 'customizr' ),
                                        ),
                                        'f' => array(
                                            'content'       => 'span12',
                                            'sidebar'       => false,
                                            'customizer'    => __( 'No sidebars : full width layout', 'customizr' ),
                                            'metabox'       => __( 'No sidebars : full width layout' , 'customizr' ),
                                        ),
          );
          
          //Default images sizes
          $this -> tc_thumb_size      = array('width' => 270 , 'height' => 250, 'crop' => true );
          $this -> slider_full_size   = array('width' => 9999 , 'height' => 500, 'crop' => true );
          $this -> slider_size        = array('width' => 1170 , 'height' => 500, 'crop' => true );

          //Default skins array
          $this -> skins              =  array( 
                                      'blue.css'        =>  __( 'Blue' , 'customizr' ),
                                      'blue2.css'       =>  __( 'Light blue ' , 'customizr' ),
                                      'blue3.css'       =>  __( 'Green blue' , 'customizr'),
                                      'green.css'       =>  __( 'Green' , 'customizr' ),
                                      'green2.css'      =>  __( 'Light green' , 'customizr'),
                                      'yellow.css'      =>  __( 'Yellow' , 'customizr' ),
                                      'yellow2.css'     =>  __( 'Flat yellow' , 'customizr' ),
                                      'orange.css'      =>  __( 'Orange' , 'customizr' ),
                                      'orange2.css'     =>  __( 'Flat orange' , 'customizr'),
                                      'red.css'         =>  __( 'Red' , 'customizr' ),
                                      'red2.css'        =>  __( 'Flat red' , 'customizr' ),
                                      'purple.css'      =>  __( 'Purple' , 'customizr' ),
                                      'purple2.css'     =>  __( 'Flat purple' , 'customizr' ),
                                      'grey.css'        =>  __( 'Grey' , 'customizr' ),
                                      'grey2.css'       =>  __( 'Ligth grey' , 'customizr' ),
                                      'black.css'       =>  __( 'Black' , 'customizr' ),
                                      'black2.css'      =>  __( 'Flat black' , 'customizr' )
          );

          //Default featured pages ids
          $this -> fp_ids             = array( 'one' , 'two' , 'three' );

          //Default social networks
          $this -> socials            = array(
                                      'tc_rss'            => array(
                                                              'link_title'    => __( 'Subscribe to my rss feed' , 'customizr' ),
                                                              'option_label'  => __( 'RSS feed (default is the wordpress feed)' , 'customizr' ),
                                                              'default'       => get_bloginfo( 'rss_url' )
                                                            ),
                                      'tc_twitter'        => array(
                                                              'link_title'    => __( 'Follow me on Twitter' , 'customizr' ),
                                                              'option_label'  => __( 'Twitter profile url' , 'customizr' ),
                                                              'default'       => null
                                                            ),
                                      'tc_facebook'       => array(
                                                              'link_title'    => __( 'Follow me on Facebook' , 'customizr' ),
                                                              'option_label'  => __( 'Facebook profile url' , 'customizr' ),
                                                              'default'       => null
                                                            ),
                                      'tc_google'         => array(
                                                              'link_title'    => __( 'Follow me on Google+' , 'customizr' ),
                                                              'option_label'  => __( 'Google+ profile url' , 'customizr' ),
                                                              'default'       => null
                                                            ),
                                      'tc_instagram'      => array(
                                                              'link_title'    => __( 'Follow me on Instagram' , 'customizr' ),
                                                              'option_label'  => __( 'Instagram profile url' , 'customizr' ),
                                                              'default'       => null
                                                            ),
                                      'tc_wordpress'      => array(
                                                              'link_title'    => __( 'Follow me on WordPress' , 'customizr' ),
                                                              'option_label'  => __( 'WordPress profile url' , 'customizr' ),
                                                              'default'       => null
                                                            ),
                                      'tc_youtube'        => array(
                                                              'link_title'    => __( 'Follow me on Youtube' , 'customizr' ),
                                                              'option_label'  => __( 'Youtube profile url' , 'customizr' ),
                                                              'default'       => null
                                                            ),
                                      'tc_pinterest'      => array(
                                                              'link_title'    => __( 'Pin me on Pinterest' , 'customizr' ),
                                                              'option_label'  => __( 'Pinterest profile url' , 'customizr' ),
                                                              'default'       => null
                                                            ),
                                      'tc_github'         => array(
                                                              'link_title'    => __( 'Follow me on Github' , 'customizr' ),
                                                              'option_label'  => __( 'Github profile url' , 'customizr' ),
                                                              'default'       => null
                                                            ),
                                      'tc_dribbble'       => array(
                                                              'link_title'    => __( 'Follow me on Dribbble' , 'customizr' ),
                                                              'option_label'  => __( 'Dribbble profile url' , 'customizr' ),
                                                              'default'       => null
                                                            ),
                                      'tc_linkedin'       => array(
                                                              'link_title'    => __( 'Follow me on LinkedIn' , 'customizr' ),
                                                              'option_label'  => __( 'LinkedIn profile url' , 'customizr' ),
                                                              'default'       => null
                                                            )
          );//end of social array


          //Default sidebar widgets
          $this -> sidebar_widgets    = array(   
                                            'right'         => array(
                                                            'name'                 => __( 'Right Sidebar' , 'customizr' ),
                                                            'description'          => __( 'Appears on posts, static pages, archives and search pages' , 'customizr' )
                                            ),
                                            'left'          => array(
                                                            'name'                 => __( 'Left Sidebar' , 'customizr' ),
                                                            'description'          => __( 'Appears on posts, static pages, archives and search pages' , 'customizr' )
                                            )
          );//end of array

          //Default footer widgets
          $this -> footer_widgets     = array(
                                            'footer_one'    => array(
                                                            'name'                 => __( 'Footer Widget Area One' , 'customizr' ),
                                                            'description'          => __( 'Just use it as you want !' , 'customizr' )
                                            ),
                                            'footer_two'    => array(
                                                            'name'                 => __( 'Footer Widget Area Two' , 'customizr' ),
                                                            'description'          => __( 'Just use it as you want !' , 'customizr' )
                                            ),
                                            'footer_three'   => array(
                                                            'name'                 => __( 'Footer Widget Area Three' , 'customizr' ),
                                                            'description'          => __( 'Just use it as you want !' , 'customizr' )
                                            )
          );//end of array

          //Default post list layout
          $this -> post_list_layout   = array(
                                          'content'           => 'span8',
                                          'thumb'             => 'span4',
                                          'show_thumb_first'  => false,
                                          'alternate'         => true
          );

          //Defines post formats with no headers
          $this -> post_formats_with_no_header   = array( 'aside' , 'status' , 'link' , 'quote' );

          //Default 404 content
          $this -> content_404        = array(
                                          'quote'             => __( 'Speaking the Truth in times of universal deceit is a revolutionary act.' , 'customizr' ),
                                          'author'            => __( 'George Orwell' , 'customizr' ),
                                          'text'              => __( 'Sorry, but the requested page is not found. You might try a search below.' , 'customizr' )
          );

          //Default no search result content
          $this -> content_no_results = array(
                                          'quote'             => __( 'Success is the ability to go from one failure to another with no loss of enthusiasm...' , 'customizr' ),
                                          'author'            => __( 'Sir Winston Churchill' , 'customizr' ),
                                          'text'              => __( 'Sorry, but nothing matched your search criteria. Please try again with some different keywords.' , 'customizr' )
          );

          //Default slides content
          $this -> default_slides     = array(
                                            1 => array(
                                              'title'         =>  '',
                                              'text'          =>  '',
                                              'button_text'   =>  '',
                                              'link_id'       =>  null,
                                              'link_url'      =>  null,
                                              'active'        =>  'active',
                                              'color_style'   =>  '',
                                              'slide_background'       =>  sprintf('<img width="1200" height="500" src="%1$s" class="" alt="%2$s" />',
                                                                          TC_BASE_URL.'inc/assets/img/customizr.jpg',
                                                                          __( 'Customizr is a clean responsive theme' , 'customizr' )
                                                                  )
                                            ),

                                            2 => array(
                                              'title'         =>  __( 'Style your WordPress site live!' , 'customizr' ),
                                              'text'          =>  __( 'Many layout and design options are available from the WordPress customizer screen : see your changes live !' , 'customizr' ),
                                              'button_text'   =>  __( 'Just try it!' , 'customizr' ),
                                              'link_id'       =>  null,
                                              'link_url'      =>  null,
                                              'active'        =>  '',
                                              'color_style'   =>  '',
                                              'slide_background'       =>  sprintf('<img width="1200" height="500" src="%1$s" class="" alt="%2$s" />',
                                                                          TC_BASE_URL.'inc/assets/img/phare.jpg',
                                                                          __( 'Style your WordPress site live!' , 'customizr' )
                                                                  )
                                            ),

                                            3 => array(
                                              'title'         =>  __( 'Create beautiful sliders' , 'customizr' ),
                                              'text'          =>  __( 'Customizr comes with a cool slider generator : add a slider to any post or page!' , 'customizr' ),
                                              'button_text'   =>  __( 'Discover the features' , 'customizr' ),
                                              'link_id'       =>  null,
                                              'link_url'      =>  null,
                                              'active'        =>  '',
                                              'color_style'   =>  '',
                                              'slide_background'       =>  sprintf('<img width="1200" height="500" src="%1$s" class="" alt="%2$s" />',
                                                                          TC_BASE_URL.'inc/assets/img/chevrolet.jpg',
                                                                          __( 'Create beautiful sliders' , 'customizr' )
                                                                  )
                                            )
          );///end of slides array


          //adds the text domain, various theme supports : editor style, automatic-feed-links, post formats, navigation menu, post-thumbnails
          add_action ( 'after_setup_theme'                      , array( $this , 'tc_customizr_setup' ) );

          //adds various plugins compatibilty (Jetpack, Bbpress, Qtranslate, Woocommerce, ...)
          add_action ( 'after_setup_theme'                      , array( $this , 'tc_plugins_compatibility'), 20 );
          
          //adds retina support for high resolution devices
          add_filter ( 'wp_generate_attachment_metadata'        , array( $this , 'tc_add_retina_support') , 10 , 2 );
          add_filter ( 'delete_attachment'                      , array( $this , 'tc_clean_retina_images') );
      }


      /**
       * Sets up theme defaults and registers the various WordPress features
       * 
       *
       * @package Customizr
       * @since Customizr 1.0
       */

      function tc_customizr_setup() {
        /* Set default content width for post images and media. */
        global $content_width;
        if( ! isset( $content_width ) )   { $content_width = apply_filters( 'tc_content_width' , 1170 ); }

        /*
         * Makes Customizr available for translation.
         * Translations can be added to the /inc/lang/ directory.
         */
        load_theme_textdomain( 'customizr' , TC_BASE . '/inc/lang' );

        /*
        * Customizr styles the visual editor to resemble the theme style,
        * Loads the editor-style specific (post formats and RTL), the active skin, the user style.css
        */
        add_editor_style( array( TC_BASE_URL.'inc/admin/css/editor-style.css', $this -> tc_active_skin() , get_stylesheet_uri() ) );

        /* Adds RSS feed links to <head> for posts and comments. */
        add_theme_support( 'automatic-feed-links' );

        /*  This theme supports nine post formats. */
        $post_formats   = apply_filters( 'tc_post_formats', array( 'aside' , 'gallery' , 'link' , 'image' , 'quote' , 'status' , 'video' , 'audio' , 'chat' ) );
        add_theme_support( 'post-formats' , $post_formats );

        /* support for page excerpt (added in v3.0.15) */
        add_post_type_support( 'page', 'excerpt' );

        /* This theme uses wp_nav_menu() in one location. */
        register_nav_menu( 'main' , __( 'Main Menu' , 'customizr' ) );

        /* This theme uses a custom image size for featured images, displayed on "standard" posts. */
        add_theme_support( 'post-thumbnails' );
          //set_post_thumbnail_size( 624, 9999 ); // Unlimited height, soft crop

        //remove theme support => generates notice in admin @todo fix-it!
         /* remove_theme_support( 'custom-background' );
          remove_theme_support( 'custom-header' );*/

        //post thumbnails for featured pages and post lists (archive, search, ...)
        $tc_thumb_size    = apply_filters( 'tc_thumb_size' , $this -> tc_thumb_size );
        add_image_size( 'tc-thumb' , $tc_thumb_size['width'] , $tc_thumb_size['height'], $tc_thumb_size['crop'] );

        //slider full width
        $slider_full_size = apply_filters( 'tc_slider_full_size' , $this -> slider_full_size );
        add_image_size( 'slider-full' , $slider_full_size['width'] , $slider_full_size['height'], $slider_full_size['crop'] );

        //slider boxed
        $slider_size      = apply_filters( 'tc_slider_size' , $this -> slider_size );
        add_image_size( 'slider' , $slider_size['width'] , $slider_size['height'], $slider_size['crop'] );

        //add support for svg and svgz format in media upload
        add_filter( 'upload_mimes'                        , array( $this , 'tc_custom_mtypes' ) );

        //add support for plugins (added in v3.1.0)
        add_theme_support( 'jetpack' );
        add_theme_support( 'bbpress' );
        add_theme_support( 'qtranslate' );
        add_theme_support( 'woocommerce' );

        //add help button to admin bar
        add_action ( 'wp_before_admin_bar_render'          , array( $this , 'tc_add_help_button' ));
        
        //add options link to admin bar
        //add_action ( 'wp_before_admin_bar_render'   , array( $this , 'tc_add_admin_bar_options_menu' ));
      }



      /**
      * Returns the active path+skin.css
      *
      * @package Customizr
      * @since Customizr 3.0.15
      */
      function tc_active_skin() {
        $skin           = esc_attr( tc__f( '__get_option' , 'tc_skin' ) );
        $skin           = esc_attr( tc__f( '__get_option' , 'tc_minified_skin' ) ) ? str_replace('.css', '.min.css', $skin) : $skin;

        //Finds the good path : are we in a child theme and is there a skin to override?
        $remote_path    = false;
        $remote_path    = ( TC___::$instance -> tc_is_child() && file_exists(TC_BASE_CHILD .'inc/assets/css/' . $skin) ) ? TC_BASE_URL_CHILD .'inc/assets/css/' : $remote_path ;
        $remote_path    = ( !$remote_path && file_exists(TC_BASE .'inc/assets/css/' . $skin) ) ? TC_BASE_URL .'inc/assets/css/' : $remote_path ;
        //Checks if there is a rtl version of the selected skin if needed
        if ('ar' == WPLANG || 'he_IL' == WPLANG) {
          $remote_path   = ( TC___::$instance -> tc_is_child() && file_exists(TC_BASE_CHILD .'inc/assets/css/rtl/' . $skin) ) ? TC_BASE_URL_CHILD .'inc/assets/css/rtl/' : $remote_path ;
          $remote_path   = ( !TC___::$instance -> tc_is_child() && file_exists(TC_BASE .'inc/assets/css/rtl/' . $skin) ) ? TC_BASE_URL .'inc/assets/css/rtl/' : $remote_path ;
        } 

        //Defines the active skin and fallback to blue.css if needed
        $tc_active_skin  = $remote_path ? $remote_path.$skin : TC_BASE_URL.'inc/assets/css/blue.css';
        return apply_filters ( 'tc_active_skin' , $tc_active_skin );
      }




      /**
     * This function handles the following plugins compatibility : Jetpack (for the carousel addon), Bbpress, Qtranslate, Woocommerce
     *
     * @package Customizr
     * @since Customizr 3.0.15
     */
      function tc_plugins_compatibility() {
        
        include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
        
        /* JETPACK */
        //adds compatibilty with the jetpack image carousel
        if ( current_theme_supports( 'jetpack' ) && is_plugin_active('jetpack/jetpack.php') ) {
          add_filter( 'tc_gallery_bool', 'disable_for_jetpack' );
          function disable_for_jetpack() {
            return false;
          }
        }


        /* BBPRESS */
        //if bbpress is installed and activated, we can check the existence of the contextual boolean function is_bbpress() to execute some code
        if ( current_theme_supports( 'bbpress' ) && is_plugin_active('bbpress/bbpress.php') ) {
          //disables thumbnails and excerpt for post lists
          add_filter( 'tc_show_post_list_thumb', 'tc_bbpress_disable_thumbnail' );
          function tc_bbpress_disable_thumbnail($bool) {
             return ( function_exists('is_bbpress') && is_bbpress() ) ? false : $bool;
          }
          add_filter( 'tc_show_post_list_excerpt', 'tc_bbpress_disable_excerpt' );
          function tc_bbpress_disable_excerpt($bool) {
             return ( function_exists('is_bbpress') && is_bbpress() ) ? false : $bool;
          }

          //disables Customizr author infos on forums
          add_filter( 'tc_show_author_metas_in_post', 'tc_bbpress_disable_author_meta' );
          function tc_bbpress_disable_author_meta($bool) {
            return ( function_exists('is_bbpress') && is_bbpress() ) ? false : $bool;
          }

          //disables post navigation
          add_filter( 'tc_show_post_navigation', 'tc_bbpress_disable_post_navigation' );
          function tc_bbpress_disable_post_navigation($bool) {
             return ( function_exists('is_bbpress') && is_bbpress() ) ? false : $bool;
          }
          
          //disables post metas
          add_filter( 'tc_show_post_metas', 'tc_bbpress_disable_post_metas' );
          function tc_bbpress_disable_post_metas($bool) {
             return ( function_exists('is_bbpress') && is_bbpress() ) ? false : $bool;
          }
        
        }//end if bbpress on



        /* 
        * QTranslate
        * Credits : @acub, http://websiter.ro
        */
        if ( current_theme_supports( 'qtranslate' ) && is_plugin_active('qtranslate/qtranslate.php') ) {
          //outputs correct urls for current language : in logo, slider
          add_filter( 'tc_slide_link_url' , 'tc_url_lang' );
          add_filter( 'tc_logo_link_url' , 'tc_url_lang');
          add_filter( 'tc_fp_link_url' , 'tc_url_lang');
          function tc_url_lang($url) {
            return ( function_exists( 'qtrans_convertURL' ) ) ? qtrans_convertURL($url) : $url;
          }

          //outputs the qtranslate translation for slider, featured pages
          add_filter( 'tc_slide_title', 'tc_apply_qtranslate' );
          add_filter( 'tc_slide_text', 'tc_apply_qtranslate' );
          add_filter( 'tc_slide_button_text', 'tc_apply_qtranslate' );
          add_filter( 'tc_slide_background_alt', 'tc_apply_qtranslate' );
          add_filter( 'tc_fp_text', 'tc_apply_qtranslate' );
          add_filter( 'tc_fp_button_text', 'tc_apply_qtranslate' );
          function tc_apply_qtranslate ($text) {
            return call_user_func(  '__' , $text );
          }


          //sets no character limit for slider (title, lead text and button title) and featured pages (text) => allow users to use qtranslate tags for as many languages they wants ([:en]English text[:de]German text...and so on)
          add_filter( 'tc_slide_title_length'  , 'tc_remove_char_limit');
          add_filter( 'tc_slide_text_length'   , 'tc_remove_char_limit');
          add_filter( 'tc_slide_button_length' , 'tc_remove_char_limit');
          add_filter( 'tc_fp_text_length' , 'tc_remove_char_limit');
          function tc_remove_char_limit() {
            return 99999;
          }

          //modify the page excerpt=> uses the wp page excerpt instead of the generated excerpt with the_content
          add_filter( 'tc_fp_text', 'tc_use_page_excerpt', 10, 3 );
          function tc_use_page_excerpt( $featured_text , $fp_id , $page_id ) {
            $page = get_post($page_id);
            return ( empty($featured_text) && !post_password_required($page_id) ) ? strip_tags(apply_filters( 'the_content' , $page->post_excerpt )) : $featured_text ;
          }

          //modify the customizer transport from post message to null for some options
          add_filter( 'tc_featured_page_button_text_customizer_set' , 'tc_change_transport', 10, 2);
          add_filter( 'tc_featured_text_one_customizer_set' , 'tc_change_transport', 10, 2);
          add_filter( 'tc_featured_text_two_customizer_set' , 'tc_change_transport', 10, 2);
          add_filter( 'tc_featured_text_three_customizer_set' , 'tc_change_transport', 10, 2);
          function tc_change_transport( $value , $set ) {
            return ('transport' == $set) ? null : $value;
          }

        }//end Qtranslate



        /* Woocommerce */
        if ( current_theme_supports( 'woocommerce' ) && is_plugin_active('woocommerce/woocommerce.php') ) {
          
          //unkooks the default woocommerce wrappersv and add customizr's content wrapper and action hooks
          remove_action( 'woocommerce_before_main_content', 'woocommerce_output_content_wrapper', 10);
          remove_action( 'woocommerce_after_main_content', 'woocommerce_output_content_wrapper_end', 10);
          add_action('woocommerce_before_main_content', 'tc_woocommerce_wrappers', 10);
          add_action('woocommerce_after_main_content', 'tc_woocommerce_wrappers', 10);

          function tc_woocommerce_wrappers() {
            switch ( current_filter() ) {
              case 'woocommerce_before_main_content':

              ?>
                <div id="main-wrapper" class="<?php echo tc__f( 'tc_main_wrapper_classes' , 'container' ) ?>">

                <?php do_action( '__before_main_container' ); ##hook of the featured page (priority 10) and breadcrumb (priority 20)...and whatever you need! ?>
                
                <div class="container" role="main">
                    <div class="<?php echo tc__f( 'tc_column_content_wrapper_classes' , 'row column-content-wrapper' ) ?>">

                        <?php do_action( '__before_article_container'); ##hook of left sidebar?>
                            
                            <div id="content" class="<?php echo tc__f( '__screen_layout' , tc__f ( '__ID' ) , 'class' ) ?> article-container">
                                
                                <?php do_action ('__before_loop');##hooks the header of the list of post : archive, search... ?>
              <?php

                break;
              
              case 'woocommerce_after_main_content':

              ?>
                                <?php do_action ('__after_loop');##hook of the comments and the posts navigation with priorities 10 and 20 ?>

                            </div><!--.article-container -->

                        <?php do_action( '__after_article_container'); ##hook of left sidebar?>

                    </div><!--.row -->
                </div><!-- .container role: main -->

                <?php do_action( '__after_main_container' ); ?>

              </div><!--#main-wrapper"-->
              
              <?php
                break;
            }//end of switch on hook
            ?>
            <?php
          }//end of nested function


          //handles the woocomerce sidebar : removes action if sidebars not active
          if ( !is_active_sidebar( 'shop') ) {
            remove_action( 'woocommerce_sidebar', 'woocommerce_get_sidebar', 10 );
          }


          //disables post navigation
          add_filter( 'tc_show_post_navigation', 'tc_woocommerce_disable_post_navigation' );
          function tc_woocommerce_disable_post_navigation($bool) {
             return ( function_exists('is_woocommerce') && is_woocommerce() ) ? false : $bool;
          }


          //removes post comment action on after_loop hook
          add_filter( 'tc_show_comments', 'tc_woocommerce_disable_comments' );
          function tc_woocommerce_disable_comments($bool) {
             return ( function_exists('is_woocommerce') && is_woocommerce() ) ? false : $bool;
          }

          //changes customizr meta boxes priority (slider and layout not on top) if displaying woocommerce products in admin
          add_filter( 'tc_post_meta_boxes_priority', 'tc_woocommerce_change_meta_boxes_priority' , 2 , 10 );
          function tc_woocommerce_change_meta_boxes_priority($priority , $screen) {
             return ( 'product' == $screen ) ? 'default' : $priority ;
          }

        }//end if woocommerce

      }//end of plugin compatibility function




      /**
      * Returns the $mimes array with svg and svgz entries added
      *
      * @package Customizr
      * @since Customizr 3.1.19
      */
      function tc_custom_mtypes( $mimes ) {
        if (! apply_filters( 'tc_add_svg_mime_type' , true ) )
          return $mimes;
        
        $mimes['svg']   = 'image/svg+xml';
        $mimes['svgz']  = 'image/svg+xml';
        return $mimes;
      }



      /**
     * This function handles the support for high resolution devices
     * 
     * @hook wp_generate_attachment_metadata (10 ,2)
     * @package Customizr
     * @since Customizr 3.0.15
     * @credits http://wp.tutsplus.com/author/chrisbavota/
     */
      function tc_add_retina_support( $metadata, $attachment_id ) {
        //checks if retina is enabled in options
        if ( 0 == tc__f( '__get_option' , 'tc_retina_support' ) )
          return $metadata;
       
        foreach ( $metadata as $key => $value ) {
            if ( is_array( $value ) ) {
                foreach ( $value as $image => $attr ) {
                    if ( is_array( $attr ) )
                        $this -> tc_create_retina_images( get_attached_file( $attachment_id ), $attr['width'], $attr['height'], true );
                }
            }
        }
        return $metadata;
      }//end of tc_retina_support



      /**
       * Creates retina-ready images
       *
       * @package Customizr
       * @since Customizr 3.0.15
       * @credits http://wp.tutsplus.com/author/chrisbavota/
       */
      function tc_create_retina_images( $file, $width, $height, $crop = false ) {
          if ( $width || $height ) {
              $resized_file = wp_get_image_editor( $file );
              if ( ! is_wp_error( $resized_file ) ) {
                  $filename = $resized_file->generate_filename( $width . 'x' . $height . '@2x' );
       
                  $resized_file->resize( $width * 2, $height * 2, $crop );
                  $resized_file->save( $filename );
       
                  $info = $resized_file->get_size();
       
                  return array(
                      'file' => wp_basename( $filename ),
                      'width' => $info['width'],
                      'height' => $info['height'],
                  );
              }
          }
          return false;
      }//end of function




      /**
     * This function deletes the generated retina images if they exist
     * 
     * @hook delete_attachment
     * @package Customizr
     * @since Customizr 3.0.15
     * @credits http://wp.tutsplus.com/author/chrisbavota/
     */
      function tc_clean_retina_images( $attachment_id ) {
        //checks if retina is enabled in options
        if ( 0 == tc__f( '__get_option' , 'tc_retina_support' ) )
          return;

        $meta = wp_get_attachment_metadata( $attachment_id );
        if ( !isset( $meta['file']) )
          return;
        
        $upload_dir = wp_upload_dir();
        $path = pathinfo( $meta['file'] );
        foreach ( $meta as $key => $value ) {
            if ( 'sizes' === $key ) {
                foreach ( $value as $sizes => $size ) {
                    $original_filename = $upload_dir['basedir'] . '/' . $path['dirname'] . '/' . $size['file'];
                    $retina_filename = substr_replace( $original_filename, '@2x.', strrpos( $original_filename, '.' ), strlen( '.' ) );
                    if ( file_exists( $retina_filename ) )
                        unlink( $retina_filename );
                }
            }
        }
      }//end of function




      /**
      * Add WordPress customizer page to the admin bar menu.
      * @package Customizr
      * @since Customizr 1.0 
      */
      function tc_add_admin_bar_options_menu() {
         if ( current_user_can( 'edit_theme_options' ) ) {
           global $wp_admin_bar;
           $wp_admin_bar->add_menu( array(
               'parent'   => false,
               'id'     => 'tc-customizr' ,
               'title'    =>  __( 'Customiz\'it!' , 'customizr' ),
               'href'     => admin_url( 'customize.php' ),
               'meta'     => array(
                 'title'    => __( 'Customize your website at any time!', 'customizr' ),
                ),
           ));
         }
      }



      /**
      * Add help button
      * @package Customizr
      * @since Customizr 1.0 
      */
      function tc_add_help_button() {
         if ( current_user_can( 'edit_theme_options' ) ) {
           global $wp_admin_bar;
           $wp_admin_bar->add_menu( array(
             'parent' => 'top-secondary', // Off on the right side
             'id' => 'tc-customizr-help' ,
             'title' =>  __( 'Help' , 'customizr' ),
             'href' => admin_url( 'themes.php?page=welcome.php&help=true' ),
             'meta'   => array(
                'title'  => __( 'Need help with Customizr? Click here!', 'customizr' ),
              ),
           ));
         }
      }
  }//end of class
endif;