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<?php
/**
* Theme Tools: Responsive videos enhancements.
*
* @package automattic/jetpack
*/
use Automattic\Jetpack\Assets;
/**
* Load the Responsive videos plugin
*/
function jetpack_responsive_videos_init() {
/* If the doesn't theme support 'jetpack-responsive-videos', don't continue */
if ( ! current_theme_supports( 'jetpack-responsive-videos' ) ) {
return;
}
/* If the theme does support 'jetpack-responsive-videos', wrap the videos */
add_filter( 'wp_video_shortcode', 'jetpack_responsive_videos_embed_html' );
add_filter( 'video_embed_html', 'jetpack_responsive_videos_embed_html' );
/* Only wrap oEmbeds if video */
add_filter( 'embed_oembed_html', 'jetpack_responsive_videos_maybe_wrap_oembed', 10, 2 );
add_filter( 'embed_handler_html', 'jetpack_responsive_videos_maybe_wrap_oembed', 10, 2 );
/* Wrap videos in Buddypress */
add_filter( 'bp_embed_oembed_html', 'jetpack_responsive_videos_embed_html' );
/* Wrap Slideshare shortcodes */
add_filter( 'jetpack_slideshare_shortcode', 'jetpack_responsive_videos_embed_html' );
// Remove the Jetpack Responsive video wrapper in embed blocks on sites that support core Responsive embeds.
if ( current_theme_supports( 'responsive-embeds' ) ) {
add_filter( 'render_block', 'jetpack_responsive_videos_remove_wrap_oembed', 10, 2 );
}
}
add_action( 'after_setup_theme', 'jetpack_responsive_videos_init', 99 );
/**
* Adds a wrapper to videos and enqueue script
*
* @param string $html The video embed HTML.
* @return string
*/
function jetpack_responsive_videos_embed_html( $html ) {
if ( empty( $html ) || ! is_string( $html ) ) {
return $html;
}
// Short-circuit for AMP responses, since custom scripts are not allowed in AMP and videos are naturally responsive.
if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) {
return $html;
}
// The customizer video widget wraps videos with a class of wp-video
// mejs as of 4.9 apparently resizes videos too which causes issues
// skip the video if it is wrapped in wp-video.
$video_widget_wrapper = 'class="wp-video"';
$mejs_wrapped = strpos( $html, $video_widget_wrapper );
// If this is a video widget wrapped by mejs, return the html.
if ( false !== $mejs_wrapped ) {
return $html;
}
Assets::register_script(
'jetpack-responsive-videos',
'_inc/build/theme-tools/responsive-videos/responsive-videos.min.js',
JETPACK__PLUGIN_FILE,
array(
'in_footer' => true,
'enqueue' => true,
'textdomain' => 'jetpack',
'css_path' => '_inc/build/theme-tools/responsive-videos/responsive-videos.css',
)
);
return '<div class="jetpack-video-wrapper">' . $html . '</div>';
}
/**
* Check if oEmbed is a `$video_patterns` provider video before wrapping.
*
* @param mixed $html The cached HTML result, stored in post meta.
* @param string $url he attempted embed URL.
*
* @return string
*/
function jetpack_responsive_videos_maybe_wrap_oembed( $html, $url = null ) {
if ( empty( $html ) || ! is_string( $html ) || ! $url ) {
return $html;
}
// Short-circuit for AMP responses, since custom scripts are not allowed in AMP and videos are naturally responsive.
if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) {
return $html;
}
$jetpack_video_wrapper = '<div class="jetpack-video-wrapper">';
$already_wrapped = strpos( $html, $jetpack_video_wrapper );
// If the oEmbed has already been wrapped, return the html.
if ( false !== $already_wrapped ) {
return $html;
}
/**
* The oEmbed video providers.
*
* An allowed list of oEmbed video provider Regex patterns to check against before wrapping the output.
*
* @module theme-tools
*
* @since 3.8.0
*
* @param array $video_patterns oEmbed video provider Regex patterns.
*/
$video_patterns = apply_filters(
'jetpack_responsive_videos_oembed_videos',
array(
'https?://((m|www)\.)?youtube\.com/watch',
'https?://((m|www)\.)?youtube\.com/playlist',
'https?://youtu\.be/',
'https?://(.+\.)?vimeo\.com/',
'https?://(www\.)?dailymotion\.com/',
'https?://dai.ly/',
'https?://(www\.)?hulu\.com/watch/',
'https?://wordpress.tv/',
'https?://(www\.)?funnyordie\.com/videos/',
'https?://vine.co/v/',
'https?://(www\.)?collegehumor\.com/video/',
'https?://(www\.|embed\.)?ted\.com/talks/',
)
);
// Merge patterns to run in a single preg_match call.
$video_patterns = '(' . implode( '|', $video_patterns ) . ')';
$is_video = preg_match( $video_patterns, $url );
// If the oEmbed is a video, wrap it in the responsive wrapper.
if ( false === $already_wrapped && 1 === $is_video ) {
return jetpack_responsive_videos_embed_html( $html );
}
return $html;
}
/**
* Remove the Jetpack Responsive video wrapper in embed blocks.
*
* @since 7.0.0
*
* @param string $block_content The block content about to be appended.
* @param array $block The full block, including name and attributes.
*
* @return string $block_content String of rendered HTML.
*/
function jetpack_responsive_videos_remove_wrap_oembed( $block_content, $block ) {
if (
isset( $block['blockName'] )
&& (
str_contains( $block['blockName'], 'core-embed' ) // pre-WP 5.6 embeds (multiple embed blocks starting with 'core-embed').
|| 'core/embed' === $block['blockName'] // WP 5.6 embed block format (single embed block w/ block variations).
)
) {
$block_content = preg_replace( '#<div class="jetpack-video-wrapper">(.*?)</div>#', '${1}', $block_content );
}
return $block_content;
}