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<?php |
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require_once( AMP__ROOT__ . '/includes/embeds/class-amp-base-embed-handler.php' ); |
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class AMP_Gallery_Embed_Handler extends AMP_Base_Embed_Handler { |
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private static $script_slug = 'amp-carousel'; |
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private static $script_src = 'https://cdn.ampproject.org/v0/amp-carousel-0.1.js'; |
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public function register_embed() { |
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add_shortcode( 'gallery', array( $this, 'shortcode' ) ); |
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} |
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public function unregister_embed() { |
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remove_shortcode( 'gallery' ); |
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} |
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public function get_scripts() { |
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if ( ! $this->did_convert_elements ) { |
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return array(); |
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} |
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return array( self::$script_slug => self::$script_src ); |
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} |
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public function shortcode( $attr ) { |
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$post = get_post(); |
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if ( ! empty( $attr['ids'] ) ) { |
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// 'ids' is explicitly ordered, unless you specify otherwise. |
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if ( empty( $attr['orderby'] ) ) { |
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$attr['orderby'] = 'post__in'; |
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} |
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$attr['include'] = $attr['ids']; |
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} |
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$atts = shortcode_atts( array( |
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'order' => 'ASC', |
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'orderby' => 'menu_order ID', |
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'id' => $post ? $post->ID : 0, |
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'include' => '', |
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'exclude' => '', |
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'size' => array( $this->args['width'], $this->args['height'] ) |
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), $attr, 'gallery' ); |
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$id = intval( $atts['id'] ); |
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if ( ! empty( $atts['include'] ) ) { |
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$attachments = get_posts( array( |
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'include' => $atts['include'], |
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'post_status' => 'inherit', |
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'post_type' => 'attachment', |
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'post_mime_type' => 'image', |
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'order' => $atts['order'], |
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'orderby' => $atts['orderby'], |
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'fields' => 'ids', |
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) ); |
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} elseif ( ! empty( $atts['exclude'] ) ) { |
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$attachments = get_children( array( |
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'post_parent' => $id, |
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'exclude' => $atts['exclude'], |
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'post_status' => 'inherit', |
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'post_type' => 'attachment', |
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'post_mime_type' => 'image', |
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'order' => $atts['order'], |
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'orderby' => $atts['orderby'], |
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'fields' => 'ids', |
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) ); |
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} else { |
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$attachments = get_children( array( |
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'post_parent' => $id, |
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'post_status' => 'inherit', |
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'post_type' => 'attachment', |
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'post_mime_type' => 'image', |
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'order' => $atts['order'], |
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'orderby' => $atts['orderby'], |
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'fields' => 'ids', |
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) ); |
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} |
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if ( empty( $attachments ) ) { |
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return ''; |
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} |
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$urls = array(); |
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foreach ( $attachments as $attachment_id ) { |
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list( $url, $width, $height ) = wp_get_attachment_image_src( $attachment_id, $atts['size'], true ); |
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if ( ! $url ) { |
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continue; |
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} |
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$urls[] = array( |
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'url' => $url, |
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'width' => $width, |
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'height' => $height, |
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); |
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} |
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return $this->render( array( |
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'images' => $urls, |
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) ); |
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} |
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public function render( $args ) { |
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$this->did_convert_elements = true; |
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$args = wp_parse_args( $args, array( |
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'images' => false, |
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) ); |
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if ( empty( $args['images'] ) ) { |
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return ''; |
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} |
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$images = array(); |
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foreach ( $args['images'] as $image ) { |
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$images[] = AMP_HTML_Utils::build_tag( |
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'amp-img', |
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array( |
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'src' => $image['url'], |
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'width' => $image['width'], |
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'height' => $image['height'], |
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'layout' => 'responsive', |
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) |
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); |
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} |
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return AMP_HTML_Utils::build_tag( |
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'amp-carousel', |
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array( |
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'width' => $this->args['width'], |
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'height' => $this->args['height'], |
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'type' => 'slides', |
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'layout' => 'responsive', |
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), |
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implode( PHP_EOL, $images ) |
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); |
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} |
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} |
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