Add sizeBytes & lastModified to mediamanager.js getItems()

[zaxbux]

This exposes additional file metadata to the Media Manager popup onInsert() callback.

Possible Use Case

WYSIWYG editor plugin that inserts links to files which display the file size.

Example JavaScript

function onInsertMedia() {
    new $.wn.mediaManager.popup({
        alias: 'wnmediamanager',
        mode: 'all', // all | image | video | audio | document
        bottomToolbar: true,
        cropAndInsertButton: false,
        onInsert: function (items) {
            if (!items.length) {
                $.wn.alert($.wn.lang.get('mediamanager.invalid_file_empty_insert'))
                return
            }

            if (items.length > 1) {
                $.wn.alert($.wn.lang.get('mediamanager.invalid_file_single_insert'))
                return
            }

            const {
                // itemType,     // file | folder
                // path,         // path relative to media library root
                // title,        // file name

                /* Additional attributes */
                sizeBytes,
                lastModified,

                // documentType, // image | video | audio | document
                // folder,
                // publicUrl,
            } = item[0];

            this.hide();
        },
        onClose: function () {},
    }
}