text: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.
   */
  /* eslint-disable */
  
  
  'use strict'
  
  var _fallback = false
  
  var raf = window.requestAnimationFrame
    || window.webkitRequestAnimationFrame
  if (!raf) {
    _fallback = true
    raf = function (callback) {
      return setTimeout(callback, 16)
    }
  }
  var caf = window.cancelAnimationFrame
    || window.webkitCancelAnimationFrame
  if (!caf && _fallback) {
    caf = function (id) {
      return clearTimeout(id)
    }
  } else if (!caf) {
    caf = function() {}
  }
  
  var MAX = (Number.MAX_SAFE_INTEGER || Math.pow(2, 53) - 1) - 1
  
  var _idMap = {}
  var _globalId = 0
  
  function _getGlobalId() {
    _globalId = (_globalId + 1) % MAX
    if (_idMap[_globalId]) {
      return _getGlobalId()
    }
    return _globalId
  }
  
  export function setTimeout (cb, ms) {
    var id = _getGlobalId()
    var start = Date.now()
    _idMap[id] = raf(function loop() {
      if (!_idMap[id] && _idMap[id] !== 0) {
        return
      }
      var ind = Date.now() - start
      if (ind < ms) {
        _idMap[id] = raf(loop)
      } else {
        delete _idMap[id]
        cb()
      }
    })
    return id
  }
  
  export function clearTimeout (id) {
    var tid = _idMap[id]
    tid && caf(tid)
    delete _idMap[id]
  }
  