@reactual/handsontable/es/helpers/unicode.js

Spreadsheet-like data grid editor

import { arrayEach } from './array';

export var KEY_CODES = {
  MOUSE_LEFT: 1,
  MOUSE_RIGHT: 3,
  MOUSE_MIDDLE: 2,
  BACKSPACE: 8,
  COMMA: 188,
  INSERT: 45,
  DELETE: 46,
  END: 35,
  ENTER: 13,
  ESCAPE: 27,
  CONTROL_LEFT: 91,
  COMMAND_LEFT: 17,
  COMMAND_RIGHT: 93,
  ALT: 18,
  HOME: 36,
  PAGE_DOWN: 34,
  PAGE_UP: 33,
  PERIOD: 190,
  SPACE: 32,
  SHIFT: 16,
  CAPS_LOCK: 20,
  TAB: 9,
  ARROW_RIGHT: 39,
  ARROW_LEFT: 37,
  ARROW_UP: 38,
  ARROW_DOWN: 40,
  F1: 112,
  F2: 113,
  F3: 114,
  F4: 115,
  F5: 116,
  F6: 117,
  F7: 118,
  F8: 119,
  F9: 120,
  F10: 121,
  F11: 122,
  F12: 123,
  A: 65,
  X: 88,
  C: 67,
  V: 86
};

/**
 * Returns true if keyCode represents a printable character.
 *
 * @param {Number} keyCode
 * @returns {Boolean}
 */
export function isPrintableChar(keyCode) {
  return keyCode == 32 || // space
  keyCode >= 48 && keyCode <= 57 || // 0-9
  keyCode >= 96 && keyCode <= 111 || // numpad
  keyCode >= 186 && keyCode <= 192 || // ;=,-./`
  keyCode >= 219 && keyCode <= 222 || // []{}\|"'
  keyCode >= 226 || // special chars (229 for Asian chars)
  keyCode >= 65 && keyCode <= 90; // a-z
}

/**
 * @param {Number} keyCode
 * @returns {Boolean}
 */
export function isMetaKey(keyCode) {
  var metaKeys = [KEY_CODES.ARROW_DOWN, KEY_CODES.ARROW_UP, KEY_CODES.ARROW_LEFT, KEY_CODES.ARROW_RIGHT, KEY_CODES.HOME, KEY_CODES.END, KEY_CODES.DELETE, KEY_CODES.BACKSPACE, KEY_CODES.F1, KEY_CODES.F2, KEY_CODES.F3, KEY_CODES.F4, KEY_CODES.F5, KEY_CODES.F6, KEY_CODES.F7, KEY_CODES.F8, KEY_CODES.F9, KEY_CODES.F10, KEY_CODES.F11, KEY_CODES.F12, KEY_CODES.TAB, KEY_CODES.PAGE_DOWN, KEY_CODES.PAGE_UP, KEY_CODES.ENTER, KEY_CODES.ESCAPE, KEY_CODES.SHIFT, KEY_CODES.CAPS_LOCK, KEY_CODES.ALT];

  return metaKeys.indexOf(keyCode) !== -1;
}

/**
 * @param {Number} keyCode
 * @returns {Boolean}
 */
export function isCtrlKey(keyCode) {
  return [KEY_CODES.CONTROL_LEFT, 224, KEY_CODES.COMMAND_LEFT, KEY_CODES.COMMAND_RIGHT].indexOf(keyCode) !== -1;
}

/**
 * @param {Number} keyCode
 * @param {String} baseCode
 * @returns {Boolean}
 */
export function isKey(keyCode, baseCode) {
  var keys = baseCode.split('|');
  var result = false;

  arrayEach(keys, function (key) {
    if (keyCode === KEY_CODES[key]) {
      result = true;

      return false;
    }
  });

  return result;
}