1、HTML结构
javascript
复制代码
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<title>ToDoList</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<header>
<section>
<label for="title">ToDoList</label>
<input type="text" id="title" name="title" placeholder="添加ToDo" required="required" autocomplete="off" />
</section>
</header>
<section>
<h2>正在进行 <span id="todocount"></span></h2>
<ol id="todolist" class="demo-box">
<!-- 列表结构 -->
<!-- <li>
<input type="checkbox"/>
<p>123</p>
<input type="text" autofocus id="vtl" />
<a href="javascript:;"></a>
</li> -->
</ol>
<h2>已经完成 <span id="donecount"></span></h2>
<ul id="donelist">
</ul>
</section>
<script type="text/javascript" src="./index.js"></script>
</body>
</html>
2、CSS样式
css
复制代码
body {
margin: 0;
padding: 0;
font-size: 16px;
background: #CDCDCD;
}
header {
height: 50px;
background: #333;
background: rgba(47, 47, 47, 0.98);
}
section {
margin: 0 auto;
}
label {
float: left;
width: 100px;
line-height: 50px;
color: #DDD;
font-size: 24px;
cursor: pointer;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}
header input {
float: right;
width: 60%;
height: 24px;
margin-top: 12px;
text-indent: 10px;
border-radius: 5px;
box-shadow: 0 1px 0 rgba(255, 255, 255, 0.24), 0 1px 6px rgba(0, 0, 0, 0.45) inset;
border: none
}
input:focus {
outline-width: 0
}
h2 {
position: relative;
}
span {
position: absolute;
top: 2px;
right: 5px;
display: inline-block;
padding: 0 5px;
height: 20px;
border-radius: 20px;
background: #E6E6FA;
line-height: 22px;
text-align: center;
color: #666;
font-size: 14px;
}
ol,
ul {
padding: 0;
list-style: none;
}
li input {
position: absolute;
top: 2px;
left: 10px;
width: 22px;
height: 22px;
cursor: pointer;
}
p {
margin: 0;
}
li p input {
top: 3px;
left: 40px;
width: 70%;
height: 20px;
line-height: 14px;
text-indent: 5px;
font-size: 14px;
}
li {
height: 32px;
line-height: 32px;
background: #fff;
position: relative;
margin-bottom: 10px;
padding: 0 45px;
border-radius: 3px;
border-left: 5px solid #629A9C;
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.07);
}
ol li {
cursor: move;
}
ul li {
border-left: 5px solid #999;
opacity: 0.5;
}
li a {
position: absolute;
top: 2px;
right: 5px;
display: inline-block;
width: 14px;
height: 12px;
border-radius: 14px;
border: 6px double #FFF;
background: #CCC;
line-height: 14px;
text-align: center;
color: #FFF;
font-weight: bold;
font-size: 14px;
cursor: pointer;
}
footer {
color: #666;
font-size: 14px;
text-align: center;
}
footer a {
color: #666;
text-decoration: none;
color: #999;
}
#it {
width: 30%;
margin-left: 30px;
}
@media screen and (max-device-width: 620px) {
section {
width: 96%;
padding: 0 2%;
}
}
@media screen and (min-width: 620px) {
section {
width: 600px;
padding: 0 10px;
}
}
3、JS(ES6)内容
javascript
复制代码
var that
class toDolist {
constructor() {
that = this; // 保存this
this.arr = JSON.parse(localStorage.getItem('arr')) || [] // 未完成数据
this.newArr = JSON.parse(localStorage.getItem('newArr')) || []// 已完成数据
this.title = document.querySelector('#title') // input框
this.todolist = document.querySelector('#todolist') // 未完成
this.donelist = document.querySelector('#donelist') // 已完成
this.todocount = document.querySelector('#todocount') // 未完成总数
this.donecount = document.querySelector('#donecount') // 已完成总数
this.createdView() // 动态创建并渲染页面
this.Event() // 监听事件
}
Event() {
this.title.addEventListener('keyup', that.titleValue) // 头部输入款监听回车事件
this.todolist.addEventListener('click', that.topCheck) // 未完成列表单选框和删除事件
this.donelist.addEventListener('click', that.footCheck) // 已完成列表单选框和删除事件
this.todolist.addEventListener('dblclick', that.twoClick) // 列表内容双击事件
}
createdView() {
// 动态创建节点根据数据渲染到页面
// 未完成部分的创建
this.todolist.innerHTML = ''
this.arr.forEach(item => {
var li = document.createElement('li')
li.id = item.id
li.innerHTML = `<input type="checkbox" class="ipt" ${item.check ? "checked" : ""}/>
<p>${item.name}</p>
<a href="javascript:;"></a>`
this.todolist.appendChild(li)
})
// 已完成部分的创建
this.donelist.innerHTML = ''
this.newArr.forEach(item => {
var tr = document.createElement('li')
tr.id = item.id
tr.innerHTML = `<input type="checkbox" class="int" ${item.check ? "checked" : ""}/>
<p>${item.name}</p>
<a href="javascript:;"></a>`
this.donelist.appendChild(tr)
})
// 显示任务数量
that.todocount.innerHTML = that.arr.length
that.donecount.innerHTML = that.newArr.length
// 本地存储
localStorage.setItem('arr', JSON.stringify(that.arr))
localStorage.setItem('newArr', JSON.stringify(that.newArr))
}
titleValue(e) {
if (e.keyCode === 13) {
// 回车创建一组数据
var obj = {
id: +new Date(),
name: that.title.value,
check: false,
show: true
}
// 判断输入款不能为空
if (that.title.value == '') {
alert('输入不能为空')
} else {
// 把数据添加到未完成数组
that.arr.unshift(obj)
// 回车之后清空输入框内容
that.title.value = ''
}
// 重新调用渲染页面
that.createdView()
}
}
topCheck(e) {
// 单选框点击功能
if (e.target.className == 'ipt') {
// 拿到当前点击的数据内容的id
var id = e.target.parentNode.id
// 通过id改变拿到当前数据
that.arr.forEach((item, index) => {
if (item.id == id) {
// 改变单选框选中状态
item.check = true
// 给已完成的数组添加当前数据
that.newArr.unshift(that.arr[index])
// 删除未完成数组里面的当前数据
that.arr.splice(index, 1)
}
})
// 重新调用渲染页面
that.createdView()
}
// 点击删除功能
if (e.target.tagName == 'A') {
var id = e.target.parentNode.id
that.arr.forEach((item, index) => {
if (item.id == id) {
that.arr.splice(index, 1)
}
})
that.createdView()
}
}
footCheck(e) {
// 逻辑跟上面一样,需要操作的数组反过来就可以了
// 单选
if (e.target.className == 'int') {
var id = e.target.parentNode.id
that.newArr.forEach((item, index) => {
if (item.id == id) {
item.check = false
that.arr.unshift(that.newArr[index])
that.newArr.splice(index, 1)
}
})
that.createdView()
}
// 删除
if (e.target.tagName == 'A') {
var id = e.target.parentNode.id
that.newArr.forEach((item, index) => {
if (item.id == id) {
that.newArr.splice(index, 1)
}
})
that.createdView()
}
}
twoClick(e) {
// 双击事件通过冒泡机制精确到具体标签
if (e.target.tagName == 'P') {
// 改变p标签内容
e.target.innerHTML = `<input type="text" value=${e.target.innerText} id="it" />`
// 双击之后自动获取焦点
e.target.firstElementChild.focus()
// 给添加的input标签添加监听事件
e.target.firstElementChild.addEventListener('keyup', that.iptEnter) // 回车事件
e.target.firstElementChild.addEventListener('blur', that.iptBlur) // 失焦事件
}
}
iptEnter(e) {
if (e.keyCode === 13) {
// 回车失去焦点并触发失焦事件
e.target.blur()
}
}
iptBlur(e) {
// 通过id操作当前数组
var id = e.target.parentNode.parentNode.id
that.arr.forEach(item => {
if (item.id == id) {
item.name = e.target.value
}
})
// 把p标签的内容改回来
e.target.parentNode.innerHTML = e.target.value
// 本地存储
localStorage.setItem('arr', JSON.stringify(that.arr))
localStorage.setItem('newArr', JSON.stringify(that.newArr))
}
}
new toDolist()