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bridge-iframe

v1.0.0

Published

A bridge for iframe

Downloads

12

Readme

IFrameBridge

使嵌套 iframe 之间的通信像计算机网络一样简单。

快速开始

将其添加到现有的 Vue 或 React 项目中:

# npm
npm install bridge-iframe
# pnpm
pnpm install bridge-iframe
# yarn
yarn add bridge-iframe

网络模型

                         /——> (子节点1)
(父节点) <———> (节点) <——————> (子节点2)
                         \——> (子节点n) ...
  • 每个页面都与一个上级页面和多个直接下级页面相关联。
  • 页面和上层页面可以直接通信传输数据。
  • 跨级页面可以通过转发的方式进行通信和传输数据。

系统协议

  • 内置地址:
    • Main 请求主窗口地址
    • Parent 向上级请求窗口(无论级别高低都向上级请求)
  • 主窗口提供的方法:
    • @bridge/online 通知主窗口注册地址
    • @bridge/domain 获取名称映射地址
    • @bridge/mapping 获取所有映射地址
  • 所有窗口提供的方法:
    • @bridge/ready 节点准备好了吗?

使用示例

下面展示一些常用的方法

桥接页面

  • 主页面 main.html
<h1>Main</h1>
<iframe src="node1.html" id="node1"></iframe>
import { IFrameBridge } from 'bridge-iframe';

// 创建桥接对象
const bridge = new IFrameBridge;
birdge.ifrme('Node1', document.getElementById('node1') as HTMLIFrameElement);

// 窗口销毁时(单页需要调用)
bridge.destroy();
  • 子页面 node1.html
<h1>Node1</h1>
import { IFrameBridge } from 'bridge-iframe';

// 创建桥接对象
const bridge = new IFrameBridge({ name: 'Node1' });

// 窗口销毁时(单页需要调用)
bridge.destroy();

订阅/发布

  • 窗口初始化
// 当前窗口初始化
bridge.ready(async () => {
    console.log('Main Ready');
});

// 指定窗口初始化
bridge.ready('Node1', async () => {
    console.log('Node1 Ready');
});
  • 订阅消息
// 订阅事件
bridge.on('say', async (vo: IFrameMessage) => {
    // vo.getData(); # 获取请求数据
    // vo.getResult(); # 获取响应结果
    return '我是 Main';
});

// 取消订阅事件
bridge.off('say');
  • 请求&响应
// 请求指定窗口
bridge.request({
    name: 'Node1', // 窗口名称(默认是 Main)
    method: 'say', // 方法名称
}).then((message: string) => {
    console.log('say.then', message);
}).catch((error: Error) => {
    console.log('say.catch', error);
});

// 请求上级页面(任意层级的直接上级)
bridge.request({
    name: 'Parent',
    method: 'say',
});

// 请求顶级页面
bridge.request({
    name: 'Main',
    method: 'say',
});

实现原理

  • 示例 iframe 嵌套层级

    • Main
      • Main/Node1
        • Main/Node1/Node1-1
        • Main/Node1/Node1-2
      • Main/Node2
        • Main/Node2/Node2-1
        • Main/Node2/Node2-2
  • 向上请求 Main/Node1/Node1-1Main

    • <内置协议获取地址>
    • Main/Node1/Node1-1 请求 ↑↑↑Main/Node1
      • tracks[{Node1-1:U}]
    • Main/Node1 转发 ↑↑↑Main
      • tracks[{Node1-1:U}, {Node1:U}]
    • Main 处理逻辑
    • Main 响应 ↓↓↓Main/Node1
      • tracks[{Node1-1:U}]
    • Main/Node1 转发 ↓↓↓Main/Node1/Node1-1
      • tracks[]
    • Main/Node1/Node1-1 收到响应
  • 向下请求 MainMain/Node1/Node1-1

    • <内置协议获取地址>
    • Main 请求 ↓↓↓Main/Node1
      • tracks[{Main:D}]
    • Main/Node1 转发 ↓↓↓Main/Node1/Node1-1
      • tracks[{Main:D}, {Node1:D}]
    • Main/Node1/Node1-1 处理逻辑
    • Main/Node1/Node1-1 响应 ↑↑↑Main/Node1
      • tracks[{Main:D}]
    • Main/Node1 转发 ↑↑↑Main
      • tracks[]
    • Main 收到响应
  • 同级请求 Main/Node1/Node1-1Main/Node1/Node1-2

    • <内置协议获取地址>
    • Main/Node1/Node1-1 请求 ↑↑↑Main/Node1
      • tracks[{Node1-1:U}]
    • Main/Node1 转发 ↓↓↓Main/Node1/Node1-2
      • tracks[{Node1-1:U}, {Node1:D}]]
    • Main/Node1/Node1-2 处理逻辑
    • Main/Node1/Node1-2 响应 ↑↑↑Main/Node1
      • tracks[{Node1-1:U}]
    • Main/Node1 转发 ↓↓↓Main/Node1/Node1-1
      • tracks[]
    • Main/Node1/Node1-1 收到响应
  • 跨级请求 Main/Node1/Node1-1Main/Node2/Node2-1

    • <内置协议获取地址>
    • Main/Node1/Node1-1 请求 ↑↑↑Main/Node1
      • tracks[{Node1-1:U}]
    • Main/Node1 转发 ↑↑↑Main
      • tracks[{Node1-1:U}, {Node1:U}]
    • Main 转发 ↓↓↓Main/Node2
      • tracks[{Node1-1:U}, {Node1:U}, {Main:D}]
    • Main/Node2 转发 ↓↓↓Main/Node2/Node2-1
      • tracks[{Node1-1:U}, {Node1:U}, {Main:D}, {Node2:D}]
    • Main/Node2/Node2-1 处理逻辑
    • Main/Node2/Node2-1 响应 ↑↑↑Main/Node2
      • tracks[{Node1-1:U}, {Node1:U}, {Main:D}]
    • Main/Node2 转发 ↑↑↑Main
      • tracks[{Node1-1:U}, {Node1:U}]
    • Main 转发 ↓↓↓Main/Node1
      • tracks[{Node1-1:U}]
    • Main/Node1 转发 ↓↓↓Main/Node1/Node1-1
      • tracks[]
    • Main/Node1/Node1-1 收到响应