combokeys/helpers/special-keys-map.js

Handles keyboard shortcuts in the browser

/* eslint-env node, browser */
'use strict'
/**
 * mapping of special keycodes to their corresponding keys
 *
 * everything in this dictionary cannot use keypress events
 * so it has to be here to map to the correct keycodes for
 * keyup/keydown events
 *
 * @type {Object}
 */
module.exports = {
  8: 'backspace',
  9: 'tab',
  13: 'enter',
  16: 'shift',
  17: 'ctrl',
  18: 'alt',
  20: 'capslock',
  27: 'esc',
  32: 'space',
  33: 'pageup',
  34: 'pagedown',
  35: 'end',
  36: 'home',
  37: 'left',
  38: 'up',
  39: 'right',
  40: 'down',
  45: 'ins',
  46: 'del',
  91: 'meta',
  93: 'meta',
  173: 'minus',
  187: 'plus',
  189: 'minus',
  224: 'meta'
}

/**
 * loop through the f keys, f1 to f19 and add them to the map
 * programatically
 */
for (var i = 1; i < 20; ++i) {
  module.exports[111 + i] = 'f' + i
}

/**
 * loop through to map numbers on the numeric keypad
 */
for (i = 0; i <= 9; ++i) {
  module.exports[i + 96] = i
}