zj-element/src/zj-common/index.js

基于ElementUI的VUE组件——Жидзин（Zidjin）系列组件库。

let callbacks = [];

export default function (id, src, func) {
  // eslint-disable-next-line @typescript-eslint/no-empty-function
  const callback = func || function () {};
  const isExisting = document.getElementById(id);

  if (!isExisting) {
    const script = document.createElement('script');
    script.src = src;
    script.id = id;
    document.body.appendChild(script);
    callbacks.push(callback);
    'onload' in script ? renderBrower(script) : renderIEBrower(script);
  }

  if (isExisting && callback) {
    window.tinymce ? callback(null, isExisting) : callbacks.push(callback);
  }

  function renderIEBrower(script) {
    script.onreadystatechange = function () {
      if (this.readyState !== 'complete' && this.readyState !== 'loaded') return;
      this.onreadystatechange = null;
      callbacks.forEach((func) => func(null, script));
      callbacks = [];
    };
  }

  function renderBrower(script) {
    script.onload = function () {
      this.onerror = this.onload = null;
      callbacks.forEach((func) => func(null, script));
      callbacks = [];
    };

    script.onerror = function () {
      this.onerror = this.onload = null;
      callback(new Error('Failed to load ' + src), script);
    };
  }
}