mldong-flow-designer-plus/lib/raf-0P1My3fX.js

本项目包含了作者为B站课堂视频[《工作流设计器开发最佳实践》](https://www.bilibili.com/cheese/play/ss24484)的过程源码。教程中开发的组件也可用于实际生产环境中。以下是和使用文档和课程章节说明。 ## 实战项目 [演示地址](https://flow-pro.mldong.com/)

import { _ as _extends } from "./index-DwKsTObm.js";
const initDefaultProps = (types, defaultProps) => {
  const propTypes = _extends({}, types);
  Object.keys(defaultProps).forEach((k) => {
    const prop = propTypes[k];
    if (prop) {
      if (prop.type || prop.default) {
        prop.default = defaultProps[k];
      } else if (prop.def) {
        prop.def(defaultProps[k]);
      } else {
        propTypes[k] = {
          type: prop,
          default: defaultProps[k]
        };
      }
    } else {
      throw new Error(`not have ${k} prop`);
    }
  });
  return propTypes;
};
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 = /* @__PURE__ */ new Map();
function cleanup(id) {
  rafIds.delete(id);
}
function wrapperRaf(callback) {
  let times = arguments.length > 1 && arguments[1] !== void 0 ? arguments[1] : 1;
  rafUUID += 1;
  const id = rafUUID;
  function callRef(leftTimes) {
    if (leftTimes === 0) {
      cleanup(id);
      callback();
    } else {
      const realId = raf(() => {
        callRef(leftTimes - 1);
      });
      rafIds.set(id, realId);
    }
  }
  callRef(times);
  return id;
}
wrapperRaf.cancel = (id) => {
  const realId = rafIds.get(id);
  cleanup(realId);
  return caf(realId);
};
export {
  initDefaultProps as i,
  wrapperRaf as w
};
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