121 lines
3.3 KiB
PHP
121 lines
3.3 KiB
PHP
<?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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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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* 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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* 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 $wp_embed;
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$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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if ( empty( $atts['id'] ) ) {
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return '<!-- Missing TED ID -->';
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}
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$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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unset( $atts['id'] );
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$args = array();
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$embed_size_w = get_option( 'embed_size_w' );
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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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// 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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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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return $retval;
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}
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add_shortcode( 'ted', 'shortcode_ted' );
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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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* 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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&& strpos( $url, 'ted.com' )
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) {
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$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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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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