<?php
/**
* Embed support for Inline PDFs
*
* Takes a plain-text PDF URL (*.pdf), and attempts to embed it directly
* in the post instead of leaving it as a bare link.
*
* @package automattic/jetpack
*/
wp_embed_register_handler( 'inline-pdfs', '#https?://[^<]*\.pdf$#i', 'jetpack_inline_pdf_embed_handler' );
/**
* Callback to modify the output of embedded PDF files.
*
* @param array $matches Regex partial matches against the URL passed.
* @param array $attr Attributes received in embed response.
* @param array $url Requested URL to be embedded.
*/
function jetpack_inline_pdf_embed_handler( $matches, $attr, $url ) {
/** This action is documented in modules/widgets/social-media-icons.php */
do_action( 'jetpack_bump_stats_extras', 'embeds', 'inline-pdf' );
$filename = basename( wp_parse_url( $url, PHP_URL_PATH ) );
$fallback_text = sprintf(
/* translators: Placeholder is a file name, for example "file.pdf" */
esc_html__( 'Click to access %1$s', 'jetpack' ),
$filename
);
return sprintf(
'<p><a href="%1$s" target="_blank" rel="noopener noreferrer nofollow">%2$s</a></p>',
esc_url( $url ),
$fallback_text
);
}