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<?php
/**
* TED Player embed code
* http://www.ted.com
*
* Examples:
* http://www.ted.com/talks/view/id/210
* http://www.ted.com/talks/marc_goodman_a_vision_of_crimes_in_the_future.html
* [ted id="210" lang="en"]
* [ted id="http://www.ted.com/talks/view/id/210" lang="en"]
* [ted id=1539 lang=fr width=560 height=315]
*
* @package Jetpack
*/
wp_oembed_add_provider( '!https?://(www\.)?ted.com/talks/view/id/.+!i', 'https://www.ted.com/talks/oembed.json', true );
wp_oembed_add_provider( '!https?://(www\.)?ted.com/talks/[a-zA-Z\-\_]+\.html!i', 'https://www.ted.com/talks/oembed.json', true );
/**
* Get the unique ID of a TED video.
* Used in Jetpack_Media_Meta_Extractor.
*
* @param array $atts Shortcode attributes.
*/
function jetpack_shortcode_get_ted_id( $atts ) {
return ( ! empty( $atts['id'] ) ? $atts['id'] : 0 );
}
/**
* Handle Ted Shortcode.
*
* @param array $atts Shortcode attributes.
*/
function shortcode_ted( $atts ) {
global $wp_embed;
$defaults = array(
'id' => '',
'width' => '',
'height' => '',
'lang' => 'en',
);
$atts = shortcode_atts( $defaults, $atts, 'ted' );
if ( empty( $atts['id'] ) ) {
return '<!-- Missing TED ID -->';
}
$url = '';
if ( preg_match( '#^[\d]+$#', $atts['id'], $matches ) ) {
$url = 'https://ted.com/talks/view/id/' . $matches[0];
} elseif ( preg_match( '#^https?://(www\.)?ted\.com/talks/view/id/[0-9]+$#', $atts['id'], $matches ) ) {
$url = set_url_scheme( $matches[0], 'https' );
}
unset( $atts['id'] );
$args = array();
$embed_size_w = get_option( 'embed_size_w' );
if ( is_numeric( $atts['width'] ) ) {
$args['width'] = $atts['width'];
} elseif ( $embed_size_w ) {
$args['width'] = $embed_size_w;
} elseif ( ! empty( $GLOBALS['content_width'] ) ) {
$args['width'] = (int) $GLOBALS['content_width'];
} else {
$args['width'] = 500;
}
// Default to a 16x9 aspect ratio if there's no height set.
if ( is_numeric( $atts['height'] ) ) {
$args['height'] = $atts['height'];
} else {
$args['height'] = $args['width'] * 0.5625;
}
if ( ! empty( $atts['lang'] ) ) {
$args['lang'] = sanitize_key( $atts['lang'] );
add_filter( 'oembed_fetch_url', 'ted_filter_oembed_fetch_url', 10, 3 );
}
$retval = $wp_embed->shortcode( $args, $url );
remove_filter( 'oembed_fetch_url', 'ted_filter_oembed_fetch_url', 10 );
return $retval;
}
add_shortcode( 'ted', 'shortcode_ted' );
/**
* Filter the request URL to also include the $lang parameter
*
* @param string $provider URL of provider that supplies the tweet we're requesting.
* @param string $url URL of tweet to embed.
* @param array $args Parameters supplied to shortcode and passed to wp_oembed_get.
*/
function ted_filter_oembed_fetch_url( $provider, $url, $args ) {
return add_query_arg( 'lang', $args['lang'], $provider );
}
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