* Contains the post embed content template part
* When a post is embedded in an iframe, this file is used to create the content template part
* output if the active theme does not include an embed-content.php template.
* @subpackage Theme_Compat
<div <?php post_class( 'wp-embed' ); ?>>
if ( has_post_thumbnail() ) {
$thumbnail_id = get_post_thumbnail_id();
if ( 'attachment' === get_post_type() && wp_attachment_is_image() ) {
$thumbnail_id = get_the_ID();
* Filters the thumbnail image ID for use in the embed template.
* @param int $thumbnail_id Attachment ID.
$thumbnail_id = apply_filters( 'embed_thumbnail_id', $thumbnail_id );
$measurements = array( 1, 1 );
$image_size = 'full'; // Fallback.
$meta = wp_get_attachment_metadata( $thumbnail_id );
if ( ! empty( $meta['sizes'] ) ) {
foreach ( $meta['sizes'] as $size => $data ) {
if ( $data['height'] > 0 && $data['width'] / $data['height'] > $aspect_ratio ) {
$aspect_ratio = $data['width'] / $data['height'];
$measurements = array( $data['width'], $data['height'] );
* Filters the thumbnail image size for use in the embed template.
* @since 4.5.0 Added `$thumbnail_id` parameter.
* @param string $image_size Thumbnail image size.
* @param int $thumbnail_id Attachment ID.
$image_size = apply_filters( 'embed_thumbnail_image_size', $image_size, $thumbnail_id );
$shape = $measurements[0] / $measurements[1] >= 1.75 ? 'rectangular' : 'square';
* Filters the thumbnail shape for use in the embed template.
* Rectangular images are shown above the title while square images
* are shown next to the content.
* @since 4.5.0 Added `$thumbnail_id` parameter.
* @param string $shape Thumbnail image shape. Either 'rectangular' or 'square'.
* @param int $thumbnail_id Attachment ID.
$shape = apply_filters( 'embed_thumbnail_image_shape', $shape, $thumbnail_id );
if ( $thumbnail_id && 'rectangular' === $shape ) :
<div class="wp-embed-featured-image rectangular">
<a href="<?php the_permalink(); ?>" target="_top">
<?php echo wp_get_attachment_image( $thumbnail_id, $image_size ); ?>
<p class="wp-embed-heading">
<a href="<?php the_permalink(); ?>" target="_top">
<?php if ( $thumbnail_id && 'square' === $shape ) : ?>
<div class="wp-embed-featured-image square">
<a href="<?php the_permalink(); ?>" target="_top">
<?php echo wp_get_attachment_image( $thumbnail_id, $image_size ); ?>
<div class="wp-embed-excerpt"><?php the_excerpt_embed(); ?></div>
* Prints additional content after the embed excerpt.
do_action( 'embed_content' );
<div class="wp-embed-footer">
<?php the_embed_site_title(); ?>
<div class="wp-embed-meta">
* Prints additional meta content in the embed template.
do_action( 'embed_content_meta' );