先来个最终效果

代码:

  template代码:
<template>
<div class="main">
<div class="title">评论</div>
<div class="comment-form">
<div class="avatar-box"><el-avatar class="header-img" :src="defaultAvatar"></el-avatar></div>
<div class="form-box">
<div class="input-box" >
<div tabindex="0" contenteditable="true" id="replyInput" spellcheck="false"
placeholder="输入评论..." class="reply-input replyInput" @focus="showReplyBtn" @input="onDivInput($event)"></div>
</div>
<div class="action-box">
<div class="emoji emoji-btn">
<div class="emoji-box">
<span class="replyInput" @click="showEmoji($event)" v-clickoutside="hideReplyBtn">表情</span>
<VEmojiPicker :isShowEmoji="isShowEmoji" :inputAdd="inputAdd" @select="selectEmoji" />
</div>
</div>
<div class="reply-btn-box">
<el-button class="reply-btn" size="medium" @click="sendComment" type="primary" >发表评论</el-button>
</div>
</div>
</div>
</div>
<div class="item" v-for="(item,i) in comments" :key="i">
<div class="comment">
<div class="user-popover-box">
<el-avatar class="header-img" :src="item.headImg"></el-avatar>
</div>
<div class="content-box">
<div class="meta-box">
<span class="username">{{item.name}}</span>
</div>
<div class="content">{{item.comment}}</div>
<div class="reply-stat">
<span class="author-time">{{item.time}}</span>
<div class="icon-btn">
<span @click="showReplyInput(i,item.name,item.id)">
<i class="iconfont el-icon-s-comment"></i>
回复({{item.commentNum}})
</span>
<span>
<i class="iconfont el-icon-thumb"></i>
点赞({{item.like}})
</span>
</div>
</div>
<div class="reply-box">
<div class="item" v-for="(reply,j) in item.reply" :key="j">
<div class="comment">
<div class="user-popover-box">
<el-avatar class="header-img" :src="reply.fromHeadImg"></el-avatar>
</div>
<div class="content-box">
<div class="meta-box">
<span class="username">{{reply.from}}</span>
</div>
<div class="content">
<span>回复<a>{{reply.to}}</a>:</span>
<span class="reply">{{reply.comment}}</span>
</div>
<div class="reply-stat">
<span class="author-time">{{reply.time}}</span>
<div class="icon-btn">
<span @click="showReplyInput(i,reply.from,reply.id)">
<i class="iconfont el-icon-s-comment"></i>
回复({{reply.commentNum}})
</span>
<span>
<i class="iconfont el-icon-thumb"></i>
点赞({{reply.like}})
</span>
</div>
</div>
</div>
</div>
</div>
</div>
<div v-show="_inputShow(i)" class="my-reply my-comment-reply comment-form">
<div class="avatar-box"><el-avatar class="header-img" :src="defaultAvatar"></el-avatar></div>
<div class="form-box">
<div class="input-box" >
<div
tabindex="0"
contenteditable="true"
spellcheck="false"
placeholder="输入评论..."
@input="onDivInput($event)"
class="reply-input reply-comment-input"
></div>
</div>
<div class="action-box">
<div class="reply-btn-box">
<el-button class="reply-btn" size="medium" @click="sendCommentReply(i)" type="primary">发表评论</el-button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</template>

   js代码(注:这里引入了emoji表情,emoji的功能未实现,后面有时间加上):

import VEmojiPicker from './emoji.vue';
const clickoutside = {
// 初始化指令
bind(el, binding, vnode) {
function documentHandler(e) {
// 这里判断点击的元素是否是本身,是本身,则返回
if (el.contains(e.target)) {
return false;
}
// 判断指令中是否绑定了函数
if (binding.expression) {
// 如果绑定了函数 则调用那个函数,此处binding.value就是handleClose方法
binding.value(e);
}
}
// 给当前元素绑定个私有变量,方便在unbind中可以解除事件监听
el.vueClickOutside = documentHandler;
document.addEventListener("click", documentHandler);
},
update() {},
unbind(el, binding) {
// 解除事件监听
document.removeEventListener("click", el.vueClickOutside);
delete el.vueClickOutside;
}
};
export default {
name: "ArticleComment",
data() {
return {
inputAdd:"",
isShowEmoji:false,
replyInput:"",
btnShow: false,
index: "0",
content:'',
emojiContent: "",
myName: "Lana Del Rey",
defaultAvatar: "../../static/images/default-avatar.png",
myHeader:
"https://ae01.alicdn.com/kf/Hd60a3f7c06fd47ae85624badd32ce54dv.jpg",
myId: 19870621,
to: "",
toId: -1,
comments: [
{
name: "Lana Del Rey",
id: 19870621,
headImg:"https://ae01.alicdn.com/kf/Hd60a3f7c06fd47ae85624badd32ce54dv.jpg",
comment: "我发布一张新专辑Norman Fucking Rockwell,大家快来听啊",
time: "2019年9月16日 18:43",
commentNum: 2,
like: 15,
inputShow: false,
reply: [
{
from: "Taylor Swift",
fromId: 19891221,
fromHeadImg:
"https://ae01.alicdn.com/kf/H94c78935ffa64e7e977544d19ecebf06L.jpg",
to: "Lana Del Rey",
toId: 19870621,
comment: "我很喜欢你的新专辑!!",
time: "2019年9月16日 18:43",
commentNum: 0,
like: 15,
inputShow: false
},
{
from: "Ariana Grande",
fromId: 1123,
fromHeadImg:
"https://ae01.alicdn.com/kf/Hf6c0b4a7428b4edf866a9fbab75568e6U.jpg",
to: "Lana Del Rey",
toId: 19870621,
comment: "别忘记宣传我们的合作单曲啊",
time: "2019年9月16日 18:43",
commentNum: 0,
like: 5,
inputShow: false
}
]
},
{
name: "Taylor Swift",
id: 19891221,
headImg:
"https://ae01.alicdn.com/kf/H94c78935ffa64e7e977544d19ecebf06L.jpg",
comment: "我发行了我的新专辑Lover",
time: "2019年9月16日 18:43",
commentNum: 1,
like: 5,
inputShow: false,
reply: [
{
from: "Lana Del Rey",
fromId: 19870621,
fromHeadImg:
"https://ae01.alicdn.com/kf/Hd60a3f7c06fd47ae85624badd32ce54dv.jpg",
to: "Taylor Swift",
toId: 19891221,
comment: "新专辑和speak now 一样棒!",
time: "2019年9月16日 18:43",
commentNum: 25,
like: 5,
inputShow: false
}
]
},
{
name: "Norman Fucking Rockwell",
id: 20190830,
headImg:
"https://ae01.alicdn.com/kf/Hdd856ae4c81545d2b51fa0c209f7aa28Z.jpg",
comment: "Plz buy Norman Fucking Rockwell on everywhere",
time: "2019年9月16日 18:43",
commentNum: 0,
like: 5,
inputShow: false,
reply: []
}
]
};
},
directives: { clickoutside },
components: {
VEmojiPicker
},
methods: {
inputFocus() {
var replyInput = document.getElementById("replyInput");
replyInput.focus();
},
showReplyBtn() {
this.btnShow = true;
},
hideReplyBtn() {
this.inputAdd = '';
this.isShowEmoji = false;
},
showReplyInput(i, name, id) {
this.comments[this.index].inputShow = false;
this.index = i;
this.comments[i].inputShow = true;
this.to = name;
this.toId = id;
},
_inputShow(i) {
return this.comments[i].inputShow;
},
_inputHide(i) {
this.comments[i].inputShow = false;
},
sendComment() {
if (!this.replyComment) {
this.$message({
showClose: true,
type: "warning",
message: "评论不能为空"
});
} else {
let a = {};
let input = document.getElementById("replyInput");
let timeNow = new Date().getTime();
let time = this.dateStr(timeNow);
a.name = this.myName;
a.comment = this.replyComment;
a.headImg = this.myHeader;
a.time = time;
a.commentNum = 0;
a.like = 0;
this.comments.push(a);
this.comments.reverse();
this.replyComment = "";
input.innerHTML = "";
}
},
sendCommentReply(i) {
if (!this.replyComment) {
this.$message({
showClose: true,
type: "warning",
message: "评论不能为空"
});
} else {
let a = {};
let timeNow = new Date().getTime();
let time = this.dateStr(timeNow);
a.from = this.myName;
a.to = this.to;
a.fromHeadImg = this.myHeader;
a.comment = this.replyComment;
a.time = time;
a.commentNum = 0;
a.like = 0;
this.comments[i].reply.push(a);
this.comments[i].reply.reverse();
this.replyComment = "";
document.getElementsByClassName("reply-comment-input")[i].innerHTML = "";
this._inputHide(i)
}
},
onDivInput: function(e) {
this.replyComment = e.target.innerHTML;
},
showEmoji(e){
this.inputAdd = e.target.className;
this.isShowEmoji = true;
console.log(e.target.className)
},
selectEmoji(emoji) { this.emojiContent += `[${emoji}]`.replace(/\[([A-Za-z0-9_]+)\]/g, '<img src="../../static/images/$1.png" class="emoji" draggable="false">')//传过来的名字转为图片
console.log(this.emojiContent)
this.replyComment = this.emojiContent
},
customEmoji(text) { //这个函数就是服务器端把传过来的名称转化为图片的
return text.replace(/\[([A-Za-z0-9_]+)\]/g, '<img src="../../static/images/$1.png" class="emoji" draggable="false">')
},
dateStr(date) {
//获取js 时间戳
var time = new Date().getTime();
//去掉 js 时间戳后三位,与php 时间戳保持一致
time = parseInt((time - date) / 1000);
//存储转换值
var s;
if (time < 60 * 10) {
//十分钟内
return "刚刚";
} else if (time < 60 * 60 && time >= 60 * 10) {
//超过十分钟少于1小时
s = Math.floor(time / 60);
return s + "分钟前";
} else if (time < 60 * 60 * 24 && time >= 60 * 60) {
//超过1小时少于24小时
s = Math.floor(time / 60 / 60);
return s + "小时前";
} else if (time < 60 * 60 * 24 * 30 && time >= 60 * 60 * 24) {
//超过1天少于30天内
s = Math.floor(time / 60 / 60 / 24);
return s + "天前";
} else {
//超过30天ddd
var date = new Date(parseInt(date));
return (
date.getFullYear() +
"/" +
(date.getMonth() + 1) +
"/" +
date.getDate()
);
}
}
}
};

  css代码(注:这里使用了stylus):

.main {
width: 1000px;
margin: 0 auto;
.title{
color: #8a9aa9;
font-size: 16px;
font-weight:;
text-align: center;
padding: 1.67rem 0 5px;
}
.comment-form{
display: flex;
position: relative;
padding: 10px;
background-color: #fafbfc;
border-radius: 3px;
margin: 1.333rem 0; .avatar-box{
flex: 0 0 auto;
.header-img{
margin-right: 10px;
}
}
.form-box{
flex: 1 1 auto;
position: relative;
.input-box{
position: relative;
display: inline-block;
width: 100%;
.reply-input {
min-height: 20px;
line-height: 22px;
padding: 10px 110px 10px 10px;
color: #ccc;
background-color: #fff;
border: 1px solid #f1f1f1;
border-radius: 3px;
text-align: left; &:empty:before {
content: attr(placeholder);
} &:focus:before {
content: none;
}
&:focus {
border: 1px solid #007fff;
outline: none;
}
}
}
.action-box{
display: flex;
align-items: center;
margin: .65rem 0 0;
.emoji{
position: relative;
.emoji-box {
display: flex;
align-items: center;
position: relative;
color: #027fff;
cursor: pointer;
font-size: 14px;
span{
display:inline-block;
padding-left 20px;
height: 18px;
background: url('../../static/images/emoji_bg.svg') left center no-repeat;
background-size:18px;
} }
}
.reply-btn-box {
flex: 0 0 auto;
margin-left: auto;
}
} }
} .item {
margin-bottom: 15px;
padding: 10px;
.comment {
display: flex; .user-popover-box {
height: 40px;
} .content-box {
border-bottom: 1px solid #f1f1f1;
margin-left: 15px;
flex: 1 1 auto;
text-align: left; .meta-box {
display: flex;
align-items: center;
font-size: 14px;
line-height: 1.2;
white-space: nowrap;
}
.content {
margin-top: 5px;
font-size: 16px;
line-height: 1.8;
word-wrap: break-word;
white-space: pre-wrap;
word-break: break-all;
color: #505050;
a{
display:inline-block;
margin:0 4px;
font-size: 14px;
font-weight:;
color: #406599;
cursor:pointer;
}
}
.reply-stat {
display: flex;
margin-top: 10px;
font-weight:;
.author-time {
font-size: 14px;
color: #8a9aa9;
cursor: default;
} .icon-btn {
flex: 0 0 auto;
display: flex;
justify-content: space-between;
margin-left: auto;
min-width: 8.8rem;
color: #8a93a0;
user-select: none; span {
display: inline-block;
margin: 0 8px;
min-width: 100px;
padding: 0 3px;
cursor: pointer;
}
}
} .reply-box {
margin: 15px 0;
background-color: #efefef;
border-radius: 3px;
.item{
padding: 10px 0 10px 10px;
&:not(:last-child) {
border-bottom: 1px solid rgba(178,186,194,0.3);
}
}
}
}
}
}
} .my-reply {
padding: 10px;
background-color: #fafbfc; .header-img {
display: inline-block;
vertical-align: top;
}
.reply-info {
position: relative;
display: inline-block;
margin-left: 5px;
width: 90%;
@media screen and (max-width: 1200px) {
width: 80%;
} .reply-input {
min-height: 20px;
line-height: 22px;
padding: 10px 110px 10px 10px;
color: #ccc;
background-color: #fff;
border: 1px solid #f1f1f1;
border-radius: 3px;
text-align: left;
&:empty:before {
content: attr(placeholder);
} &:focus:before {
content: none;
} &:focus {
border: 1px solid #007fff;
outline: none;
}
}
} .reply-btn-box {
.reply-btn {
position: relative;
float: right;
height: 100%;
}
}
} .my-comment-reply {
margin-left: 50px; .reply-input {
width: flex;
}
} .author-title:not(:last-child) {
border-bottom: 1px solid rgba(178, 186, 194, 0.3);
} .author-title {
padding: 10px; .header-img {
display: inline-block;
vertical-align: top;
} .author-info {
display: inline-block;
margin-left: 5px;
width: 60%;
height: 40px;
line-height: 20px; >span {
display: block;
cursor: pointer;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
} .author-name {
color: #000;
font-size: 18px;
font-weight: bold;
} .author-time {
font-size: 14px;
}
} .icon-btn {
width: 30%;
padding: 0 !important;
float: right; @media screen and (max-width: 1200px) {
width: 20%;
padding: 7px;
} >span {
cursor: pointer;
} .iconfont {
margin: 0 5px;
}
} .talk-box {
margin: 0 50px; >p {
margin:;
text-align: left;
} .reply {
font-size: 16px;
color: #000;
}
} .reply-box {
margin: 10px 0 0 50px;
background-color: #efefef;
}
}

最后附上GitHub地址:https://github.com/ALazyTiger/vue-Comment-List

    

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