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<?php
/**
* The image field which uploads images via HTML <input type="file">.
*
* @package Meta Box
*/
/**
* Image field class which uses <input type="file"> to upload.
*/
class RWMB_Image_Field extends RWMB_File_Field {
/**
* Enqueue scripts and styles.
*/
public static function admin_enqueue_scripts() {
parent::admin_enqueue_scripts();
wp_enqueue_style( 'rwmb-image', RWMB_CSS_URL . 'image.css', array(), RWMB_VER );
}
/**
* Get HTML for uploaded file.
*
* @param int $file Attachment (file) ID.
* @param int $index File index.
* @param array $field Field data.
* @return string
*/
protected static function file_html( $file, $index, $field ) {
list( $src ) = wp_get_attachment_image_src( $file, 'thumbnail' );
return sprintf(
'<li id="item_%s">
<img src="%s">
<div class="rwmb-image-bar">
<a href="%s" target="_blank"><span class="dashicons dashicons-edit"></span></a> |
<a href="#" class="rwmb-file-delete" data-attachment_id="%s">×</a>
</div>
</li>',
$file,
$src,
get_edit_post_link( $file ),
$file
);
}
/**
* Format a single value for the helper functions.
*
* @param array $field Field parameters.
* @param array $value The value.
* @return string
*/
public static function format_single_value( $field, $value ) {
$output = '<ul>';
foreach ( $value as $file ) {
$img = sprintf( '<img src="%s" alt="%s">', esc_url( $file['url'] ), esc_attr( $file['alt'] ) );
// Link thumbnail to full size image?
if ( isset( $args['link'] ) && $args['link'] ) {
$img = sprintf( '<a href="%s" title="%s">%s</a>', esc_url( $file['full_url'] ), esc_attr( $file['title'] ), $img );
}
$output .= "<li>$img</li>";
}
$output .= '</ul>';
return $output;
}
/**
* Get uploaded file information.
*
* @param int $file Attachment image ID (post ID). Required.
* @param array $args Array of arguments (for size).
*
* @return array|bool False if file not found. Array of image info on success.
*/
public static function file_info( $file, $args = array() ) {
$path = get_attached_file( $file );
if ( ! $path ) {
return false;
}
$args = wp_parse_args( $args, array(
'size' => 'thumbnail',
) );
$image = wp_get_attachment_image_src( $file, $args['size'] );
$attachment = get_post( $file );
$info = array(
'ID' => $file,
'name' => basename( $path ),
'path' => $path,
'url' => $image[0],
'full_url' => wp_get_attachment_url( $file ),
'title' => $attachment->post_title,
'caption' => $attachment->post_excerpt,
'description' => $attachment->post_content,
'alt' => get_post_meta( $file, '_wp_attachment_image_alt', true ),
);
if ( function_exists( 'wp_get_attachment_image_srcset' ) ) {
$info['srcset'] = wp_get_attachment_image_srcset( $file );
}
$info = wp_parse_args( $info, wp_get_attachment_metadata( $file ) );
// Do not overwrite width and height by returned value of image meta.
$info['width'] = $image[1];
$info['height'] = $image[2];
return $info;
}
}
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