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<?php
/**
* This class handles video related functionality.
*
* Class SiteOrigin_Video
*/
class SiteOrigin_Video {
/**
* Check whether it's possible to oEmbed by testing if a provider URL can be obtained.
*
* @param string $url The URL of the video to be embedded.
*
* @return bool Whether it's possible to embed this video.
*/
function can_oembed( $url ) {
$wp_oembed = new WP_oEmbed();
$provider = $wp_oembed->get_provider( $url, array( 'discover' => false ) );
return ! empty( $provider );
}
/**
* Gets a video source embed
*
* @param string $src The URL of the video.
* @param bool $autoplay Whether to start playing the video automatically once loaded. ( YouTube only )
* @param bool $related_videos Whether to show related videos after the video has finished playing. ( YouTube only )
*
* @return false|mixed|null|string|string[]
*/
function get_video_oembed( $src, $autoplay = false, $related_videos = true ) {
if ( empty( $src ) ) {
return '';
}
global $content_width;
$video_width = ! empty( $content_width ) ? $content_width : 640;
$hash = md5( serialize( array(
'src' => $src,
'width' => $video_width,
'autoplay' => $autoplay,
) ) );
// Convert embed format to standard format to be compatible with wp_oembed_get
$src = preg_replace('/https?:\/\/www.youtube.com\/embed\/([^\/]+)/', 'https://www.youtube.com/watch?v=$1', $src);
$html = get_transient( 'sow-vid-embed[' . $hash . ']' );
if ( empty( $html ) ) {
$html = wp_oembed_get( $src, array( 'width' => $video_width ) );
if ( $autoplay ) {
$html = preg_replace_callback( '/src=["\'](http[^"\']*)["\']/', array(
$this,
'autoplay_callback'
), $html );
}
if ( empty( $related_videos ) ) {
$html = preg_replace_callback( '/src=["\'](http[^"\']*)["\']/', array(
$this,
'remove_related_videos'
), $html );
}
if ( ! empty( $html ) ) {
set_transient( 'sow-vid-embed[' . $hash . ']', $html, 30 * 86400 );
}
}
return $html;
}
/**
* The preg_replace callback that adds autoplay.
*
* @param $match
*
* @return mixed
*/
function autoplay_callback( $match ) {
return str_replace( $match[1], add_query_arg( 'autoplay', 1, $match[1] ), $match[0] );
}
/**
* The preg_replace callback that adds the rel param for YouTube videos.
*
* @param $match
*
* @return mixed
*/
function remove_related_videos( $match ) {
return str_replace( $match[1], add_query_arg( 'rel', 0, $match[1] ), $match[0] );
}
}
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