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vconsole-vue-devtool-plugin

v0.0.4

Published

vConsole vue-devtools plugin. Debug vue anywhere

Downloads

158

Readme

vconsole-vue-devtool-plugin

vconsole-vue-devtool-plugin 是一款vConsole插件,把Vue.js官方调试工具vue-devtools移植到移动端,可以直接在移动端查看调试Vue.js应用

WechatIMG71.png

为什么需要本插件:

  1. 在Safari和移动端无法直接调试Vue.js
  2. Electron版本的devtools安装和远程调试配置非常麻烦

功能

  1. 移植了官方Vue-devtools的全部功能
  2. 针对移动端优化了部分操作方式
  3. 现已支持微信端内浏览器

使用方式

  1. npm install vconsole-vue-devtool-plugin --dev-save

  2. 在工程中入口文件 (如src/main.js

...
import VConsole from "vconsole";
import Devtools from 'vconsole-vue-devtool-plugin'
Devtools.initPlugin(new VConsole()); // 需要在创建Vue根实例前调用
...

高级用法

  1. 只在开发环境下引入

    new Vue({
      render: (h) => h(App),
    }).$mount("#app");
       
    // 在创建跟实例以后调用, 需要借助webpack的异步模块加载能力
    if(process.env.NODE_ENV === "development"){
       Promise.all([import("vconsole"), import("vconsole-vue-devtool-plugin")]).then(
         (res) => {
           if (res.length === 2) {
             Vue.config.devtools = true;
             window.__VUE_DEVTOOLS_GLOBAL_HOOK__.emit("init",Vue)
             const VConsole = res[0].default;
             const Devtools = res[1].default;
             Devtools.initPlugin(new VConsole());
           }
         }
       );
     }

更新日志

v0.0.2

  1. 重要更新,解决iOS微信端浏览器兼容性问题
  2. 解决iOS阿里mPass容器兼容性问题
  3. 优化了打包体积

TODO:

  1. 支持Vue.js 3
  2. 开发脱离vConsole版本
  3. webpack plugin

Sample code

Github

实现过程

实现过程 分析完Vue、Vue-devtools、vConsole源码以后,似乎可行。步骤如下:

剥离Vue-devtools @front部分 实现@backend 和 @front 部分通信 实现front注入iframe iframe嵌入vConsole 制作npm包并发布

1. 剥离front

首先一个问题就是 Vue-devtools并不是一个库,所以npm上没有它,无法引用,其次这个工程也不适合作为库输出,因为它的打包方式比较特殊,还有这个工程本身的目的就是打包成一个可执行的App或者chrome插件,所以如果想引用它里面的代码,我想到最简单的方式就是拷贝了。。。所以剥离frontend非常简单,在Vue-devtools工程的package.json中增加script:"buildvc": "cd packages/shell-dev && cross-env NODE_ENV=production webpack \--progress \--hide-modules", 同时在shell-dev里增加一个文件叫 inject.js

import { initDevTools } from '@front'
import Bridge from '@utils/bridge'

const targetWindow = window.parent;
document.body.style.overflow = "scroll";
initDevTools({
  connect (cb) {
    cb(new Bridge({
      listen (fn) {
        window.addEventListener('message', evt => {
          fn(evt.data)
        })
      },
      send (data) {
        targetWindow.postMessage(data, '*')
      }
    }))
  },
  onReload (reloadFn) {
    reloadFn.call();
  }
})

当然shell-dev里的webpack.config.js里 增加一个入口配置 inject: './src/inject.js'

打出来的包就是我们要的front部分,最终嵌入iframe里。

2.实现通信

上面的inject.js中已经包含了 front部分 接收和发送消息的代码了。接下来完成backend部分的消息发送和接收,

import { initBackend } from '@back'
import Bridge from '@utils/bridge'

const initBackendWithTargetWindow = function(win,targetWindow){
  const bridge = new Bridge({
    listen (fn) {
      win.addEventListener('message', evt => {
        fn(evt.data)})
    },
    send (data) {
      targetWindow.postMessage(data, '*')
    }
  })
  
  initBackend(bridge)
}

export default { initBackendWithTargetWindow }

3. front嵌入iframe

这个比较麻烦,也遇到了一些兼容性问题,最终方案是:

  • 把第一步打包的inject.js 重命名为 inject.txt
  • 增加一个rawloader规则,识别txt
  • 使用script.txt的方式插入到script标签中,然后插入iframe的body中
import injectString from './inject.txt'

function inject (scriptContent, done) {
  const script = document.getElementById('vue-iframe').contentWindow.document.createElement('script')
  script.text = scriptContent
  document.getElementById('vue-iframe').contentWindow.document.body.appendChild(script)
}

inject(injectString)

4. iframe嵌入vconsole

实现一个plugin类,继承VConsolePlugin,然后实现对应的方法即可,具体文档可以查看VConsole文档vConsole Readme

class VConsoleVueTab extends VConsolePlugin {

  constructor(...args) {
    super(...args);
  }
  onRenderTab(cb){
    cb(`<iframe id="vue-iframe" style="width:100%;position:absolute;top:0;bottom:0;min-height:100%;"></iframe>`);
  }
  onReady() {
    target = document.getElementById('vue-iframe')
    targetWindow = target.contentWindow;
    be.initBackendWithTargetWindow(window,targetWindow);    
  }

  onShow() {    
    injectOnce(injectString)
  }
}

5. 制作npm包并发布

这一步需要打包发布,并且优化

const initPlugin = function(vConsole){
  var tab = new VConsoleVueTab('vue', 'Vue');
  vConsole.addPlugin(tab);
}
export default {
  initPlugin
}