ExifInterface.php

<?php

namespace Drupal\exif;


/**
 *
 */
interface ExifInterface {
    
    /**
     * Work out which fields have to be processed.
     *
     * Going through all the fields that have been created for a given node type
     * and try to figure out which match the naming convention -> so that we know
     * which exif information we have to read
     *
     * Naming convention are: field_exif_xxx (xxx would be the name of the exif
     * tag to read.
     *
     * @param array $fields
     *   The fields.
     *
     * @return array
     *   A list of EXIF tags to read for this image.
     */
    public function getMetadataFields(array $fields = array());
    
    /**
     * List of options for the method.
     *
     * @param string $file
     * @param bool $enable_sections
     *   Retrieve sections.
     *
     * @return array $data
     */
    public function readMetadataTags($file, $enable_sections = TRUE);
    
    /**
     *
     *
     * @return array
     */
    public function getFieldKeys();

}