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<?php |
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/** |
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* TED Player embed code |
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* http://www.ted.com |
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* |
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* Examples: |
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* http://www.ted.com/talks/view/id/210 |
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* http://www.ted.com/talks/marc_goodman_a_vision_of_crimes_in_the_future.html |
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* [ted id="210" lang="en"] |
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* [ted id="http://www.ted.com/talks/view/id/210" lang="en"] |
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* [ted id=1539 lang=fr width=560 height=315] |
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* |
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* @package automattic/jetpack |
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*/ |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit( 0 ); |
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} |
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|
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wp_oembed_add_provider( '!https?://(www\.)?ted.com/talks/view/id/.+!i', 'https://www.ted.com/talks/oembed.json', true ); |
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wp_oembed_add_provider( '!https?://(www\.)?ted.com/talks/[a-zA-Z\-\_]+\.html!i', 'https://www.ted.com/talks/oembed.json', true ); |
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|
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/** |
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* Get the unique ID of a TED video. |
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* Used in Jetpack_Media_Meta_Extractor. |
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* |
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* @param array $atts Shortcode attributes. |
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*/ |
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function jetpack_shortcode_get_ted_id( $atts ) { |
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return ( ! empty( $atts['id'] ) ? $atts['id'] : 0 ); |
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} |
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|
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/** |
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* Handle Ted Shortcode. |
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* |
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* @param array $atts Shortcode attributes. |
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*/ |
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function shortcode_ted( $atts ) { |
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global $wp_embed; |
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|
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$defaults = array( |
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'id' => '', |
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'width' => '', |
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'height' => '', |
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'lang' => 'en', |
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); |
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$atts = shortcode_atts( $defaults, $atts, 'ted' ); |
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|
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if ( empty( $atts['id'] ) ) { |
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return '<!-- Missing TED ID -->'; |
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} |
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|
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$url = ''; |
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if ( preg_match( '#^[\d]+$#', $atts['id'], $matches ) ) { |
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$url = 'https://ted.com/talks/view/id/' . $matches[0]; |
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} elseif ( preg_match( '#^https?://(www\.)?ted\.com/talks/view/id/[0-9]+$#', $atts['id'], $matches ) ) { |
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$url = set_url_scheme( $matches[0], 'https' ); |
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} |
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|
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unset( $atts['id'] ); |
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|
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$args = array(); |
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$embed_size_w = get_option( 'embed_size_w' ); |
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|
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if ( is_numeric( $atts['width'] ) ) { |
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$args['width'] = $atts['width']; |
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} elseif ( $embed_size_w ) { |
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$args['width'] = $embed_size_w; |
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} elseif ( ! empty( $GLOBALS['content_width'] ) ) { |
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$args['width'] = (int) $GLOBALS['content_width']; |
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} else { |
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$args['width'] = 500; |
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} |
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|
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// Default to a 16x9 aspect ratio if there's no height set. |
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if ( is_numeric( $atts['height'] ) ) { |
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$args['height'] = $atts['height']; |
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} else { |
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$args['height'] = $args['width'] * 0.5625; |
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} |
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|
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if ( ! empty( $atts['lang'] ) ) { |
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$args['lang'] = sanitize_key( $atts['lang'] ); |
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add_filter( 'oembed_fetch_url', 'ted_filter_oembed_fetch_url', 10, 3 ); |
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} |
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$retval = $wp_embed->shortcode( $args, $url ); |
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remove_filter( 'oembed_fetch_url', 'ted_filter_oembed_fetch_url', 10 ); |
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|
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return $retval; |
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} |
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add_shortcode( 'ted', 'shortcode_ted' ); |
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|
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/** |
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* Filter the request URL to also include the $lang parameter |
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* |
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* @param string $provider URL of provider that supplies the tweet we're requesting. |
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* @param string $url URL of tweet to embed. |
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* @param array $args Parameters supplied to shortcode and passed to wp_oembed_get. |
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*/ |
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function ted_filter_oembed_fetch_url( $provider, $url, $args ) { |
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return add_query_arg( 'lang', $args['lang'], $provider ); |
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} |
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|
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/** |
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* Filter the oembed html to set the sandbox attribute in the iframe |
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* |
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* @param string|false $cache The cached HTML result, stored in post meta. |
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* @param string $url The attempted embed URL. |
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* |
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* @return string|false |
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*/ |
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function ted_filter_oembed_amp_iframe( $cache, $url ) { |
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if ( ! is_string( $cache ) ) { |
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return $cache; |
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} |
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|
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$host = wp_parse_url( $url, PHP_URL_HOST ); |
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if ( ! $host ) { |
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return $cache; |
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} |
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|
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$allowed_hosts = array( |
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'ted.com', |
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'www.ted.com', |
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'embed.ted.com', |
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); |
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|
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$host = strtolower( $host ); |
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if ( in_array( $host, $allowed_hosts, true ) ) { |
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$cache = preg_replace( |
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'/src=[\'"].*?[\'"]/', |
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'$0 sandbox="allow-popups allow-scripts allow-same-origin"', |
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$cache |
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); |
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} |
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|
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return $cache; |
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} |
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add_filter( 'embed_oembed_html', 'ted_filter_oembed_amp_iframe', 10, 2 ); |
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|
