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<?php
/**
* Featured image meta checkbox to inline SVG
*
* Allow users to select whether featured images should contain the SVG Support class
* Check if the featured image is SVG first, then display meta box for SVG only.
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly
}
/**
* Add checkbox to the featured image metabox
*/
function bodhi_svgs_featured_image_meta( $content ) {
global $post;
// check if featured image is set and has extension of .svg or .svgz
// need to make this check on the moment that the thumbnail shows up in the meta box.
if ( strpos( get_the_post_thumbnail(), '.svg' ) ) {
$text = __( 'Render this SVG inline (advanced)', 'svg-support' );
$id = 'inline_featured_image';
$value = esc_attr( get_post_meta( $post->ID, $id, true ) );
$label = '<label for="' . $id . '" class="selectit"><input name="' . $id . '" type="checkbox" id="' . $id . '" value="' . $value . ' "'. checked( $value, 1, false) .'> ' . $text .'</label>';
return $content .= $label;
} else {
return $content;
}
}
if ( bodhi_svgs_advanced_mode() ) {
add_filter( 'admin_post_thumbnail_html', 'bodhi_svgs_featured_image_meta' );
}
/**
* Save featured image meta data when saved
*/
function bodhi_svgs_save_featured_image_meta( $post_id, $post, $update ) {
$value = 0;
if ( isset( $_REQUEST['inline_featured_image'] ) ) {
$value = 1;
}
// Check if post type supports 'thumbnail' (Featured Image)
if ( post_type_supports( get_post_type( $post_id ), 'thumbnail' ) ) {
// set meta value to either 1 or 0
update_post_meta( $post_id, 'inline_featured_image', $value );
}
}
add_action( 'save_post', 'bodhi_svgs_save_featured_image_meta', 10, 3 );
/**
* Add class to the featured image output on front end
*/
function bodhi_svgs_add_class_to_thumbnail( $thumb ) {
$inline_featured_image = get_post_meta( get_the_ID(), 'inline_featured_image' );
if ( is_array( $inline_featured_image ) && in_array( 1, $inline_featured_image ) ) {
global $bodhi_svgs_options;
if ( ! empty( $bodhi_svgs_options['css_target'] ) ) {
$target_class = $bodhi_svgs_options['css_target'];
} else {
$target_class = 'style-svg';
}
if ( is_single() ) {
$thumb = str_replace( 'attachment-', $target_class . ' attachment-', $thumb );
}
}
return $thumb;
}
if ( bodhi_svgs_advanced_mode() ) {
add_filter( 'post_thumbnail_html', 'bodhi_svgs_add_class_to_thumbnail' );
}