function bfastmag_media_upload(button_class) {
    'use strict';
    jQuery('body').on('click', button_class, function () {
        var button_id = '#' + jQuery(this).attr('id');
        var display_field = jQuery(this).parent().children('input.custom_media_url:text');
        var _custom_media = true;

        wp.media.editor.send.attachment = function (props, attachment) {

            if (_custom_media) {
                if (typeof display_field !== 'undefined') {
                    switch (props.size) {
                        case 'full':
                            display_field.val(attachment.sizes.full.url);
                            display_field.trigger('change');
                            break;
                        case 'medium':
                            display_field.val(attachment.sizes.medium.url);
                            display_field.trigger('change');
                            break;
                        case 'thumbnail':
                            display_field.val(attachment.sizes.thumbnail.url);
                            display_field.trigger('change');
                            break;
 
                        default:
                            display_field.val(attachment.url);
                            display_field.trigger('change');
                    }
                }
                _custom_media = false;
            } else {
                return wp.media.editor.send.attachment(button_id, [props, attachment]);
            }
        };
        wp.media.editor.open(button_class);
        window.send_to_editor = function () {

        };
        return false;
    });
}

jQuery(document).ready(function () {
    'use strict';
    bfastmag_media_upload('.upload_image_button');
    bfastmag_media_upload('.custom-media-button-bfastmag');
});