chemiker/e.nigma-2015

<?php

    namespace enigma;

    class Content {

        // Pagebar Clone
        // Originally created by [Sergej Müller](https://sergejmueller.github.io)
        public static function pagebar($displayedpages=6) {
            global $wp_query;
            $max_num_pages = $wp_query->max_num_pages;

            if ($max_num_pages <= 1) {
                return;
            }

            $page  = (int) get_query_var('paged');
            $roundedrange  = ceil($displayedpages / 2);

            if (! $page) {
                $page = 1;
            }

            if ($max_num_pages > $displayedpages) {
                if ($page <= $displayedpages) {
                    $min = 1;
                    $max = $displayedpages + 1;
                } elseif ($page >= ($max_num_pages - $roundedrange)) {
                    $min = $max_num_pages - $displayedpages;
                    $max = $max_num_pages;
                } elseif ($page >= $displayedpages && $page < ($max_num_pages - $roundedrange)) {
                    $min = $page - $roundedrange;
                    $max = $page + $roundedrange;
                }
            } else {
                $min = 1;
                $max = $max_num_pages;
            }

            if (! empty($min) && ! empty($max)) {
                for ($i = $min; $i <= $max; $i++) {
                    echo sprintf(' <a href="%s" %s>%d</a>',
                            get_pagenum_link($i),
                            ($i == $page ? 'class="page active"' : 'class="page"'),
                            $i
                        );
                }
            }
        }

        // Get Categories
        public static function get_categories() {
            $thecategories = get_the_category();
            $numberofcategories = count( $thecategories );
            $categories = '';

            foreach ( $thecategories as $categorienumber => $category ) {
                if ( $categorienumber == $numberofcategories - 1 ) {
                    $spacer = '';
                } else {
                    $spacer = ', ';
                }
                $categories .= sprintf('<a href="%s">%s</a>%s',
                        get_category_link( $category->term_id ),
                        $category->name,
                        $spacer
                    );
            }

            if ( ! empty($categories) ) {
                $categories = sprintf('<span class="screen-reader hidden">%s: </span><span class="post-meta-category">%s</span>',
                        __('Category', 'e.nigma-2015'),
                        $categories
                    );
                return $categories;
            }
        }

        private static function get_category_symbol($format) {
            $symbols = array(
                    'link' => '&#61699;',
                    'audio' => '&#61735;',
                    'video' => '&#62006;',
                    'quote' => '&#61730;',
                    'aside' => '&#61731;',
                    'image' => '&#62214;',
                    'gallery' => '&#61793;',
                    'chat' => '&#61733;',
                    'status' => '&#61744;'
                );

            if ( ! $format || ! isset($symbols[$format]) || ! $symbols[$format] )
                return '&#61972;';

            return $symbols[$format];
        }

        private static function get_headline($format) {
            switch ($format) {
                case 'link' :
                    $link = get_post_meta( get_the_ID(), '_format_link_url', true );
                    $headline = sprintf('<h2><a href="%s">%s<span class="link_arrow">%s</span></a></h2>',
                            ( $link ? $link : get_the_permalink() ),
                            get_the_title(),
                            ( is_rtl() ? '&#x2190;' : '&#x2192;' )
                        );
                break;
                default :
                    $headline = '<h2><a href="' . get_the_permalink() . '">' . get_the_title() . '</a></h2>';
                break;
            }

            return $headline;
        }

        private static function get_meta($format) {
            switch ($format) {
                case 'quote' : case 'link' :
                    $meta = '';
                break;
                default :
                    $meta = sprintf('<hr class="before_content" /><span class="screen-reader hidden">%s</span><span class="post-meta-date"><a href="%s">%s</a></span> %s',
                             __('Published on:', 'e.nigma-2015'),
                             get_the_permalink(),
                             get_the_date(),
                             self::get_categories()
                        );
                break;
            }

            return $meta;
        }

        private static function get_thumbnail($format) {
            switch ($format) {
                case 'image':
                    $thumbnail = '';
                break;
                default:
                    $thumbnail = get_the_post_thumbnail();
                break;
            }

            return $thumbnail;
        }

        private static function get_text_for_archive_page() {
            if ( ! is_single() && has_excerpt() )
                return get_the_excerpt();

            return get_the_content(
                        sprintf(
                                __( 'Continue reading%s', 'e.nigma-2015' ),
                                '<span class="screen-reader hidden">  '.get_the_title().'</span>&hellip;'
                            )
                    );
        }

        private static function get_content($format) {
            $content = self::get_text_for_archive_page();

            $oembed = wp_oembed_get(
                        get_post_meta( get_the_ID(), '_format_'.$format.'_embed', true ),
                        array( 'width' => 677 )
                    );

            if ($format == 'video' || $format == 'audio')
                return ( $oembed ? $oembed : get_post_meta( get_the_ID(), '_format_'.$format.'_embed', true ) ) . $content;

            if ($format == 'image' && $featured_image = wp_get_attachment_image_src( get_post_thumbnail_id(), 'full' ))
                return '<img class="hide" src="'.$featured_image[0].'" alt="'.get_the_title().'" />' . $content;

            return $content;
        }

        private static function get_class($format, $class='') {
            if ( $format == 'image' && has_post_thumbnail() )
                $class = "image-post-with-thumbnail";

            return $class;
        }

        private static function get_css($format, $css='') {
            if ( $format == 'image' && $featured_image = wp_get_attachment_image_src( get_post_thumbnail_id(), 'full' ) )
                $css = "style=\"background-image: url('".$featured_image[0]."')\"";

            return $css;
        }

        // Get things for the post types…
        public static function get_post_vars( $format = '' ) {
            return array(
                    'category_symbol' => self::get_category_symbol($format),
                    'headline' => self::get_headline($format),
                    'meta' => self::get_meta($format),
                    'thumbnail' => self::get_thumbnail($format),
                    'css' => self::get_css($format),
                    'class' => self::get_class($format),
                    'content' => self::get_content($format)
                );
        }
    }