vue+element开发一个谷歌插件的全过程

你虚度的今日是昨日逝去的人无限向往的明天。美丽的早晨,把压力释放,清凉的秋风,把欢乐吹响,温柔的阳光,把温馨点亮,轻松的心情,把幸福送上,早安!

简单功能:点击浏览器右上角插件icon弹出小弹窗,点击设置弹出设置页,并替换背景图或颜色。

开始

1.本地创建文件夹testPlugin并新建manifest.json文件

{
    "name": "testPlugin",
    "description": "这是一个测试用例",
    "version": "0.0.1",
    "manifest_version": 2
}

2.添加插件的小icon

testPlugin下创建icons文件夹,可以放入一些不同尺寸的icon,测试可以偷懒都放一种尺寸的icon。修改manifest.json为:

{
    "name": "testPlugin",
    "description": "这是一个测试用例",
    "version": "0.0.1",
    "manifest_version": 2,
    "icons": {
      "16": "icons/16.png",
      "48": "icons/16.png"
  }
}

这时候在扩展程序中加载已解压的程序(就是我们创建的文件夹),就可以看到雏形了:

3.选择性地添加点击插件icon浏览器右上角弹出来的框

"browser_action": {
  "default_title": "test plugin",
  "default_icon": "icons/16.png",
  "default_popup": "index.html"
}

testPlugin创建index.html文件:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>test plugin</title>
</head>

<body>
  <input id="name" placeholder="请输入"/>
</body>
</html>

刷新插件,这时候点击浏览器中刚刚添加的插件的icon,就会弹出:

4.js事件(样式同理)

document.getElementById('button').onclick = function() {
    alert(document.getElementById('name').value)
}

html中:

<input id="name" placeholder="请输入"/>
<input id="button" type="button" value="点击"/>
<script src="js/index.js"></script>

刷新插件,这时候点击浏览器中刚刚添加的插件的icon,就会弹出输入框中的值:

一个嵌入网页中的悬浮框

上述例子是点击icon浏览器右上角出现的小弹窗,

引入vue.js、element-ui

下载合适版本的vue.js和element-ui等插件,同样按照index.js一样的操作引入,如果没有下载单独js文件的地址,可以打开cdn地址直接将压缩后的代码复制。

manifest.json中添加:

"content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "css/index.css"
      ],
      "js": [
        "js/vue.js",
        "js/element.js",
        "js/index.js"
      ],
      "run_at": "document_idle"
    }
  ],

在index.js文件:

这里使用在head里插入link 的方式引入element-ui的css,减少插件包的一点大小,当然也可以像引入index.js那样在manifest.json中引入。

直接在index.js文件中写Vue实例,不过首先得创建挂载实例的节点:

let element = document.createElement('div')
let attr =  document.createAttribute('id')
attr.value = 'appPlugin'
element.setAttributeNode(attr)
document.getElementsByTagName('body')[0].appendChild(element)

let link = document.createElement('link')
let linkAttr =  document.createAttribute('rel')
linkAttr.value = 'stylesheet'
let linkHref =  document.createAttribute('href')
linkHref.value = 'https://unpkg.com/element-ui/lib/theme-chalk/index.css'
link.setAttributeNode(linkAttr)
link.setAttributeNode(linkHref)
document.getElementsByTagName('head')[0].appendChild(link)


const vue = new Vue({
    el: '#appPlugin',
    template:`
      <div class="app-plugin-content">{{text}}{{icon_post_message}}<el-button @click="Button">Button</el-button></div>
    `,
    data: function () {
        return { text: 'hhhhhh', icon_post_message: '_icon_post_message', isOcContentPopShow: true }
    },
    mounted() {
        console.log(this.text)
    },
    methods: {
        Button() {
            this.isOcContentPopShow = false
        }
    }
})

让我们来写一个简易替换网页背景颜色工具

index.js:

let element = document.createElement('div')
let attr = document.createAttribute('id')
attr.value = 'appPlugin'
element.setAttributeNode(attr)
document.getElementsByTagName('body')[0].appendChild(element)

let link = document.createElement('link')
let linkAttr = document.createAttribute('rel')
linkAttr.value = 'stylesheet'
let linkHref = document.createAttribute('href')
linkHref.value = 'https://unpkg.com/element-ui/lib/theme-chalk/index.css'
link.setAttributeNode(linkAttr)
link.setAttributeNode(linkHref)
document.getElementsByTagName('head')[0].appendChild(link)


const vue = new Vue({
    el: '#appPlugin',
    template: `
        <div v-if="isOcContentPopShow" class="oc-move-page" id="oc_content_page">
            <div class="oc-content-title" id="oc_content_title">颜色 <el-button type="text" icon="el-icon-close" @click="close"></el-button></div>
            <div class="app-plugin-content">背景:<el-color-picker v-model="color1"></el-color-picker></div>
            <div class="app-plugin-content">字体:<el-color-picker v-model="color2"></el-color-picker></div>
        </div>
    `,
    data: function () {
        return { color1: null, color2: null, documentArr: [], textArr: [], isOcContentPopShow: true }
    },
    watch: {
        color1(val) {
            let out = document.getElementById('oc_content_page')
            let outC = document.getElementsByClassName('el-color-picker__panel')
            this.documentArr.forEach(item => {
                    if(!out.contains(item) && !outC[0].contains(item) && !outC[1].contains(item)) {
                        item.style.cssText = `background-color: ${val}!important;color: ${this.color2}!important;`
                    }
            })
        },
        color2(val) {
            let out = document.getElementById('oc_content_page')
            let outC = document.getElementsByClassName('el-color-picker__panel')[1]
            this.textArr.forEach(item => {
                if(!out.contains(item) && !outC.contains(item)) {
                        item.style.cssText = `color: ${val}!important;`
                    }
            })
        }
    },
    mounted() {
        chrome.runtime.onConnect.addListener((res) => {
            if (res.name === 'testPlugin') {
                res.onMessage.addListener(mess => {
                    this.isOcContentPopShow = mess.isShow
                })
            }
        })
        this.$nextTick(() => {
            let bodys = [...document.getElementsByTagName('body')]
            let headers = [...document.getElementsByTagName('header')]
            let divs = [...document.getElementsByTagName('div')]
            let lis = [...document.getElementsByTagName('li')]
            let articles = [...document.getElementsByTagName('article')]
            let asides = [...document.getElementsByTagName('aside')]
            let footers = [...document.getElementsByTagName('footer')]
            let navs = [...document.getElementsByTagName('nav')]
            this.documentArr = bodys.concat(headers, divs, lis, articles, asides, footers, navs)

            let as = [...document.getElementsByTagName('a')]
            let ps = [...document.getElementsByTagName('p')]
            this.textArr = as.concat(ps)

        })

    },
    methods: {
        close() {
            this.isOcContentPopShow = false
        }
    }
})

index.html:

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>my plugin</title>
  <link rel="stylesheet" rel="nofollow noopener noreferrer" href="css/index.css">
</head>

<body>
  <div class="plugin">
    <input id="plugin_button" type="button" value="打开" />
  </div>
</body>
<script src="js/icon.js"></script>

</html>

新建icon.js:

plugin_button.onclick = function () {
  mess()
}
async function mess () {
  const tabId = await getCurrentTabId()
  const connect = chrome.tabs.connect(tabId, {name: 'testPlugin'});
  connect.postMessage({isShow: true})
}
function getCurrentTabId() {
  return new Promise((resolve, reject) => {
      chrome.tabs.query({ active: true, currentWindow: true }, function (tabs) {
          resolve(tabs.length ? tabs[0].id : null)
      });
  })
}

这样一个小尝试就完成了,当然如果有更多需求可以结合本地存储或者服务端来协作。

总结

到此这篇关于vue+element开发一个谷歌插件的文章就介绍到这了,更多相关vue+element开发插件内容请搜索以前的文章或继续浏览下面的相关文章希望大家以后多多支持!

标签: vue element