/*************************************************************
*
* Copyright (c) 2015-2016 The MathJax Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @fileoverview Interface definition for touch navigatable menu elements.
*
* @author v.sorge@mathjax.org (Volker Sorge)
*/
/**
* Touch events.
* @enum {string}
*/
TOUCH = {
START: 'touchstart',
MOVE: 'touchmove',
END: 'touchend',
CANCEL: 'touchcancel'
}
/**
* @interface
*/
TouchNavigatable = function() {}
/**
* Navigation selection on keyboard events.
* @param {TouchEvent} event The keyboard event that fired.
*/
TouchNavigatable.prototype.touchstart = function() {};
/**
* Navigation on escape key pressed.
* @param {TouchEvent} event The keyboard event that fired.
*/
TouchNavigatable.prototype.touchmove = function() {};
/**
* Navigation on space key pressed.
* @param {TouchEvent} event The keyboard event that fired.
*/
TouchNavigatable.prototype.touchend = function() {};
/**
* Navigation on left arrow key pressed.
* @param {TouchEvent} event The keyboard event that fired.
*/
TouchNavigatable.prototype.touchcancel = function() {};