@carbon/ibm-cloud-cognitive-cdai/es/component_helpers/A11yHelper.js

Carbon for Cloud & Cognitive CD&AI UI components

//
// Copyright IBM Corp. 2020, 2020
//
// This source code is licensed under the Apache-2.0 license found in the
// LICENSE file in the root directory of this source tree.
//

export var keys = {
  SPACE: ' ',
  TAB: 'Tab',
  CLICK: 'click',
  KEYPRESS: 'keypress',
  KEYDOWN: 'keydown',
  KEYUP: 'keyup',
  ENTER: 'Enter'
};
export var handlers = {
  onClick: 'onClick',
  onKeyDown: 'onKeyDown',
  onKeyUp: 'onKeyUp',
  onKeyPress: 'onKeyPress'
};
var defaultValidKeys = [keys.CLICK, keys.SPACE, keys.ENTER];
var defaultHandlers = [handlers.onClick, handlers.onKeyDown];

// triggers a callback if event key matches one in validKeys
export var keyAndClickHandler = function keyAndClickHandler(callback) {
  var validKeys = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : defaultValidKeys;
  return function (evt) {
    if (evt && (evt.type || evt.key)) {
      if (validKeys.includes(evt.type) || validKeys.includes(evt.key)) {
        callback(evt);
      }
    }
  };
};
export var createInteractionHandler = function createInteractionHandler(callback) {
  var handlers = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : defaultHandlers;
  var validKeys = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : defaultValidKeys;
  var handler = {};
  for (var i = 0; i < handlers.length; i++) {
    handler[handlers[i]] = keyAndClickHandler(callback, validKeys);
  }
  return handler;
};