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msd2/wordpress/wp-content/plugins/amp/includes/embeds/class-amp-gfycat-embed-handler.php

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+<?php
+/**
+ * Class AMP_Gfycat_Embed_Handler
+ *
+ * @package AMP
+ * @since 1.0
+ */
+
+/**
+ * Class AMP_Gfycat_Embed_Handler
+ */
+class AMP_Gfycat_Embed_Handler extends AMP_Base_Embed_Handler {
+	/**
+	 * Regex matched to produce output amp-gfycat.
+	 *
+	 * @var string
+	 */
+	const URL_PATTERN = '#https?://(www\.)?gfycat\.com/.*#i';
+
+	/**
+	 * Register embed.
+	 */
+	public function register_embed() {
+		add_filter( 'embed_oembed_html', array( $this, 'filter_embed_oembed_html' ), 10, 3 );
+	}
+
+	/**
+	 * Unregister embed.
+	 */
+	public function unregister_embed() {
+		remove_filter( 'embed_oembed_html', array( $this, 'filter_embed_oembed_html' ), 10 );
+	}
+
+	/**
+	 * Filter oEmbed HTML for Gfycat to prepare it for AMP.
+	 *
+	 * @param mixed  $return The shortcode callback function to call.
+	 * @param string $url    The attempted embed URL.
+	 * @param array  $attr   An array of shortcode attributes.
+	 * @return string Embed.
+	 */
+	public function filter_embed_oembed_html( $return, $url, $attr ) {
+		$parsed_url = wp_parse_url( $url );
+		if ( false !== strpos( $parsed_url['host'], 'gfycat.com' ) ) {
+			if ( preg_match( '/width=["\']?(\d+)/', $return, $matches ) ) {
+				$attr['width'] = $matches[1];
+			}
+			if ( preg_match( '/height=["\']?(\d+)/', $return, $matches ) ) {
+				$attr['height'] = $matches[1];
+			}
+
+			if ( empty( $attr['height'] ) ) {
+				return $return;
+			}
+
+			$attributes = wp_array_slice_assoc( $attr, array( 'width', 'height' ) );
+
+			if ( empty( $attr['width'] ) ) {
+				$attributes['layout'] = 'fixed-height';
+				$attributes['width']  = 'auto';
+			}
+
+			$pieces = explode( '/detail/', $parsed_url['path'] );
+			if ( ! isset( $pieces[1] ) ) {
+				if ( ! preg_match( '/\/([A-Za-z0-9]+)/', $parsed_url['path'], $matches ) ) {
+					return $return;
+				}
+				$attributes['data-gfyid'] = $matches[1];
+			} else {
+				$attributes['data-gfyid'] = $pieces[1];
+			}
+
+			$return = AMP_HTML_Utils::build_tag(
+				'amp-gfycat',
+				$attributes
+			);
+		}
+		return $return;
+	}
+}
+