@aplus-frontend/antdv/lib/_util/raf.js

Vue basic component library maintained based on ant-design-vue

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = wrapperRaf;
let raf = callback => setTimeout(callback, 16);
let caf = num => clearTimeout(num);
if (typeof window !== 'undefined' && 'requestAnimationFrame' in window) {
  raf = callback => window.requestAnimationFrame(callback);
  caf = handle => window.cancelAnimationFrame(handle);
}
let rafUUID = 0;
const rafIds = new Map();
function cleanup(id) {
  rafIds.delete(id);
}
function wrapperRaf(callback) {
  let times = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
  rafUUID += 1;
  const id = rafUUID;
  function callRef(leftTimes) {
    if (leftTimes === 0) {
      // Clean up
      cleanup(id);
      // Trigger
      callback();
    } else {
      // Next raf
      const realId = raf(() => {
        callRef(leftTimes - 1);
      });
      // Bind real raf id
      rafIds.set(id, realId);
    }
  }
  callRef(times);
  return id;
}
wrapperRaf.cancel = id => {
  const realId = rafIds.get(id);
  cleanup(realId);
  return caf(realId);
};