<?php
/**
* Scribd Shortcode
*
* [scribd id=DOCUMENT_ID key=DOCUMENT_KEY mode=MODE]
* DOCUMENT_ID is an integer (also used as an object_id)
* DOCUMENT_KEY is an alphanumeric hash ('-' character as well)
* MODE can be 'list', 'book', 'slide', 'slideshow', or 'tile'
*
* [scribd id=39027960 key=key-3kaiwcjqhtipf25m8tw mode=list]
*
* @package automattic/jetpack
*/
/**
* Register Scribd shortcode.
*
* @param array $atts Shortcode attributes.
*/
function scribd_shortcode_handler( $atts ) {
$atts = shortcode_atts(
array(
'id' => 0,
'key' => 0,
'mode' => '',
),
$atts,
'scribd'
);
$modes = array( 'list', 'book', 'slide', 'slideshow', 'tile' );
$atts['id'] = (int) $atts['id'];
if ( preg_match( '/^[A-Za-z0-9-]+$/', $atts['key'], $m ) ) {
$atts['key'] = $m[0];
if ( ! in_array( $atts['mode'], $modes, true ) ) {
$atts['mode'] = '';
}
return scribd_shortcode_markup( $atts );
} else {
return '';
}
}
/**
* Display the shortcode.
*
* @param array $atts Shortcode attributes.
* @return string The rendered shortcode.
*/
function scribd_shortcode_markup( $atts ) {
$sandbox = class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request()
? 'sandbox="allow-popups allow-scripts allow-same-origin"'
: '';
$url = add_query_arg(
array(
'start_page' => '1',
'view_mode' => esc_attr( $atts['mode'] ),
'access_key' => esc_attr( $atts['key'] ),
),
esc_url(
sprintf(
'https://www.scribd.com/embeds/%1$d/content',
absint( $atts['id'] )
)
)
);
return sprintf(
'<iframe class="scribd_iframe_embed" src="%1$s" %2$s data-auto-height="true" scrolling="no" id="scribd_%3$d" width="100%%" height="500" frameborder="0"></iframe>
<div style="font-size:10px;text-align:center;width:100%%"><a href="https://www.scribd.com/doc/%3$d" rel="noopener noreferrer" target="_blank">%4$s</a></div>',
$url,
$sandbox,
absint( $atts['id'] ),
esc_html__( 'View this document on Scribd', 'jetpack' )
);
}
add_shortcode( 'scribd', 'scribd_shortcode_handler' );
/**
* Scribd supports HTTPS, so use that endpoint to get HTTPS-compatible embeds.
*
* @param array $providers Array of oEmbed providers.
*/
function scribd_https_oembed( $providers ) {
if ( isset( $providers['#https?://(www\.)?scribd\.com/doc/.*#i'] ) ) {
$providers['#https?://(www\.)?scribd\.com/doc/.*#i'][0] = 'https://www.scribd.com/services/oembed';
}
return $providers;
}
add_filter( 'oembed_providers', 'scribd_https_oembed' );