Method contentInit

src/app/service/content/script_runtime.ts:22–55

()

  // content环境的特殊初始化
  contentInit() {
    this.server.on("runtime/addElement", (data: { params: [number | null, string, Record<string, any> | null] }) => {
      const [parentNodeId, tagName, tmpAttr] = data.params;

      const msg = this.msg as CustomEventMessage;

      // 取回 parentNode（如果存在）
      let parentNode: Node | undefined;
      if (parentNodeId) {
        parentNode = msg.getAndDelRelatedTarget(parentNodeId) as Node | undefined;
      }

      // 创建元素并设置属性
      const el = <Element>document.createElement(tagName);
      const attr = tmpAttr ? { ...tmpAttr } : {};
      let textContent = "";
      if (attr.textContent) {
        textContent = attr.textContent;
        delete attr.textContent;
      }
      for (const key of Object.keys(attr)) {
        el.setAttribute(key, attr[key]);
      }
      if (textContent) el.textContent = textContent;

      // 优先挂到 parentNode，否则挂到 head/body/任意节点
      const node = parentNode || document.head || document.body || document.querySelector("*");
      node.appendChild(el);

      // 返回节点引用 id，供另一侧再取回
      const nodeId = msg.sendRelatedTarget(el);
      return nodeId;
    });
  }

  init() {
    this.server.on("runtime/emitEvent", (data: EmitEventRequest) => {