ckeditor/ckeditor5-engine

/**
 * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */

/**
 * @module engine/conversion/conversionhelpers
 */

/**
 * Base class for conversion helpers.
 */
export default class ConversionHelpers {
    /**
     * Creates a conversion helpers instance.
     *
     * @param {Array.<module:engine/conversion/downcastdispatcher~DowncastDispatcher|
     * module:engine/conversion/upcastdispatcher~UpcastDispatcher>} dispatchers
     */
    constructor( dispatchers ) {
        this._dispatchers = dispatchers;
    }

    /**
     * Registers a conversion helper.
     *
     * **Note**: See full usage example in the `{@link module:engine/conversion/conversion~Conversion#for conversion.for()}`
     * method description.
     *
     * @param {Function} conversionHelper The function to be called on event.
     * @returns {module:engine/conversion/downcasthelpers~DowncastHelpers|module:engine/conversion/upcasthelpers~UpcastHelpers}
     */
    add( conversionHelper ) {
        for ( const dispatcher of this._dispatchers ) {
            conversionHelper( dispatcher );
        }

        return this;
    }
}