react网页版聊天|仿微信、微博web版|react+pc端仿微信实例

一、项目介绍

基于react+react-dom+react-router-dom+redux+react-redux+webpack2.0+nodejs等技术混合开发的仿微信web端聊天室reactwebchat项目，实现了聊天记录右键菜单、发送消息、表情(动图)，图片、视频预览，浏览器截图粘贴发送等功能。

二、技术选型

• mvvm框架：react / react-dom
• 状态管理：redux / react-redux
• 页面路由：react-router-dom
• 弹窗插件：wcpop
• 打包工具：webpack 2.0
• 环境配置：node.js + cnpm
• 图片预览：react-photoswipe
• 轮播滑动：swiper

{
  "name": "react-webchat",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "react": "^16.8.6",
    "react-dom": "^16.8.6",
    "react-redux": "^7.1.0",
    "react-router-dom": "^5.0.1",
    "react-scripts": "0.9.x",
    "redux": "^4.0.1",
    "redux-thunk": "^2.3.0"
  },
  "devdependencies": {
    "jquery": "^2.2.3",
    "react-custom-scrollbars": "^4.2.1",
    "react-photoswipe": "^1.3.0",
    "swiper": "^4.5.0"
  },
  "scripts": {
    "start": "set host=localhost&& set port=3003 && react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  }
}

◆ app主页面布局及路由配置：

render() {
    let token = this.props.token
    return (
      <router>
        <div classname="vchat-wrapper flexbox flex-alignc">
          <div classname="vchat-panel" /*style={{ backgroundimage: `url(${require("./assets/img/placeholder/vchat__panel-bg02.jpg")})` }}*/ >
            <div classname="vchat-inner flexbox">
              {/* //顶部（最大、最小、关闭） */}
              <switch>
                <winbar />
              </switch>

              {/* //侧边栏 */}
              <switch>
                <sidebar />
              </switch>

              {/* //主页面 */}
              <div classname="flex1 flexbox">
                {/* 路由容器 */}
                <switch>
                  {
                    routers.map((item, index) => {
                      return <route key={index} path={item.path} exact render={props => (
                        !item.meta || !item.meta.requireauth ? (<item.component {...props} />) : (
                          token ? <item.component {...props} /> : <redirect to={{pathname: '/login', state: {from: props.location}}} />
                        )
                      )} />
                    })
                  }
                  {/* 初始化页面跳转 */}
                  <redirect push to="/index" />
                </switch>
              </div>
            </div>
          </div>
        </div>
      </router>
    );
}

◆ react+react-redux配合状态管理：

import {combinereducers} from 'redux'
import defaultstate from './state.js'

function auth(state = defaultstate, action) {
    // 不同的action处理不同的逻辑
    switch (action.type) {
        case 'set_token':
            return {
                ...state, token: action.data
            }
        case 'set_user':
            return {
                ...state, user: action.data
            }
        case 'set_logout':
            return {
                user: null, token: null
            }
        default:
            return { ...state }
    }
}

◆ react页面路由配置：

/*
 *  @desc 页面地址路由js
 */

// 引入页面组件
import login from '../views/auth/login'
import register from '../views/auth/register'
import index from '../views/index'
import contact from '../views/contact'
import uinfo from '../views/contact/uinfo'
import newfriend from '../views/contact/new-friends'
import ucenter from '../views/ucenter'
import news from '../views/news'
import newsdetail from '../views/news/detail';

export default [
    {
        path: '/login', name: 'login', component: login,
        meta: { hidesidebar: true },
    },
    {
        path: '/register', name: 'register', component: register,
        meta: { hidesidebar: true },
    },
    {
        path: '/index', name: 'app', component: index,
        meta: { requireauth: true },
    },
    {
        path: '/contact', name: 'contact', component: contact,
        meta: { requireauth: true },
    },
    {
        path: '/contact/uinfo', name: 'uinfo', component: uinfo,
    },
    {
        path: '/contact/new-friends', name: 'newfriend', component: newfriend,
        meta: { requireauth: true },
    },
    {
        path: '/news', name: 'news', component: news,
    },
    {
        path: '/news/detail', name: 'newsdetail', component: newsdetail,
    },
    {
        path: '/ucenter', name: 'ucenter', component: ucenter,
        meta: { requireauth: true },
    },

    // ...
]

import react, { component } from 'react';
import { link } from 'react-router-dom';
import {connect} from 'react-redux'

import $ from 'jquery'
// 引入wcpop弹窗插件
import { wcpop } from '../../assets/js/wcpop/wcpop'

// 引入自定义滚动条
import { scrollbars } from 'react-custom-scrollbars'

// 引入swiper
import swiper from 'swiper'
import 'swiper/dist/css/swiper.css'

// 引入图片预览组件react-photoswipe
import {photoswipe} from 'react-photoswipe'
import 'react-photoswipe/lib/photoswipe.css'

// 导入消息记录列表
import recordlist from '../../components/recordlist'

// >>> 【编辑器+表情处理模块】------------------------------------------
// ...处理编辑器信息
function surrounds() {
    settimeout(function () { //chrome
        var sel = window.getselection();
        var anchornode = sel.anchornode;
        if (!anchornode) return;
        if (sel.anchornode === $(".j__wceditor")[0] ||
            (sel.anchornode.nodetype === 3 && sel.anchornode.parentnode === $(".j__wceditor")[0])) {

            var range = sel.getrangeat(0);
            var p = document.createelement("p");
            range.surroundcontents(p);
            range.selectnodecontents(p);
            range.insertnode(document.createelement("br")); //chrome
            sel.collapse(p, 0);

            (function clearbr() {
                var elems = [].slice.call($(".j__wceditor")[0].children);
                for (var i = 0, len = elems.length; i < len; i++) {
                    var el = elems[i];
                    if (el.tagname.tolowercase() == "br") {
                        $(".j__wceditor")[0].removechild(el);
                    }
                }
                elems.length = 0;
            })();
        }
    }, 10);
}

// 定义最后光标位置
var _lastrange = null, _sel = window.getselection && window.getselection();
var _rng = {
    getrange: function () {
        if (_sel && _sel.rangecount > 0) {
            return _sel.getrangeat(0);
        }
    },
    addrange: function () {
        if (_lastrange) {
            _sel.removeallranges();
            _sel.addrange(_lastrange);
        }
    }
}

// 格式化编辑器包含标签
$("body").on("click", ".j__wceditor", function(){
    $(".wc__choose-panel").hide();
    _lastrange = _rng.getrange();
});
$("body").on("focus", ".j__wceditor", function(){
    surrounds();
    _lastrange = _rng.getrange();
});
$("body").on("input", ".j__wceditor", function(){
    surrounds();
    _lastrange = _rng.getrange();
});