TodoList.jsx
import React, { Component } from 'react';
import './TodoList.css';
import Header from './Header';
import ListItem from './ListItem';
import Footer from './Footer';
export default class TodoList extends Component {
state = {
lists: [{name: 'fff',id: '25631', checked: false}]
}
addTodo = (list) => {
this.setState({lists: [list, ...this.state.lists]});
}
handleCheck = (id, checked) => {
const {lists} = this.state
const newLists = lists.map(item => {
if (id === item.id) {
item.checked = checked
}
return item;
})
console.log(newLists);
this.setState({lists: newLists});
}
handleDelete = (id) => {
this.setState({lists: this.state.lists.filter(item => item.id !== id)});
}
handleCheckAll = (flag) => {
this.setState({lists: this.state.lists.map(item => {
item.checked = flag
return item;
})
});
}
handleClearAllDone = () => {
this.setState({lists: this.state.lists.filter(item => !item.checked) });
}
render() {
return (
<div className="todo-container">
<div className="todo-wrap">
<Header addTodo={this.addTodo}/>
<ListItem lists={this.state.lists} handleCheck={this.handleCheck} handleDelete={this.handleDelete}/>
<Footer lists={this.state.lists} handleCheckAll={this.handleCheckAll} handleClearAllDone={this.handleClearAllDone}/>
</div>
</div>
)
}
}
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Header.jsx
import React, { Component } from 'react';
import PropTypes from 'prop-types';
import {nanoid} from 'nanoid';
export default class Header extends Component {
static propTypes = {
addTodo: PropTypes.func.isRequired
}
handleKeyUp = (e) => {
if (e.keyCode === 13) {
const value = e.target.value;
e.target.value = '';
return this.props.addTodo({name: value, id: nanoid(), checked: false});
}
}
render() {
return (
<div className="todo-header">
<input onKeyUp={this.handleKeyUp} type="text" placeholder="请输入你的任务名称,按回车键确认"/>
</div>
)
}
}
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ListItem.jsx
import React, { Component } from 'react'
import PropTypes from 'prop-types'
export default class ListItem extends Component {
static propTypes = {
lists: PropTypes.array.isRequired,
handleDelete: PropTypes.func.isRequired,
handleCheck: PropTypes.func.isRequired,
}
handleDelete(id) {
console.log(id);
this.props.handleDelete(id)
}
handleCheck = (id) => {
return (event) => {
this.props.handleCheck(id, event.target.checked)
}
}
render() {
const {lists} = this.props;
console.log(lists);
return (
<div className={lists.length ? 'todo-main' : ''}>
{
lists.map(item => (
<div className="li" key={item.id}>
<label>
<input type="checkbox" checked={item.checked} onChange={this.handleCheck(item.id)}/>
<span>{item.name}</span>
</label>
<button onClick={()=> this.handleDelete(item.id) } className="btn btn-danger" >删除</button>
</div>
))
}
</div>
)
}
}
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Footer.jsx
import PropTypes from 'prop-types'
export default class Footer extends Component {
static propTypes = {
lists: PropTypes.array.isRequired,
handleCheckAll: PropTypes.func.isRequired,
handleClearAllDone: PropTypes.func.isRequired,
}
handleCheckAll = (e) => {
return () => {
this.props.handleCheckAll(e.target.checked)
}
}
handleClearAllDone = () => {
this.props.handleClearAllDone()
}
render() {
const { lists } = this.props
const total = lists.length;
const checkedTotal = lists.filter(item => item.checked);
return (
<div className="todo-footer">
<div style={{float: 'left'}}>
<label>
<input type="checkbox" onChange={this.handleCheckAll}
checked={total.length === checkedTotal.length && total.length ? true : false}/>
</label>
<span>
<span>已完成{checkedTotal}</span> / 全部{total}
</span>
</div>
<button onClick={this.handleClearAllDone} className="btn btn-danger">清除已完成任务</button>
</div>
)
}
}
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css
.btn {
display: inline-block;
padding: 4px 12px;
margin-bottom: 0;
font-size: 14px;
line-height: 20px;
text-align: center;
vertical-align: middle;
cursor: pointer;
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
border-radius: 4px;
}
.btn-danger {
color: #fff;
background-color: #da4f49;
border: 1px solid #bd362f;
}
.btn-danger:hover {
color: #fff;
background-color: #bd362f;
}
.btn:focus {
outline: none;
}
.todo-container {
width: 600px;
margin: 0 auto;
background: #fff;
}
.todo-container .todo-wrap {
padding: 10px;
border: 1px solid #ddd;
border-radius: 5px;
}
/*header*/
.todo-header input {
width: 560px;
height: 28px;
font-size: 14px;
border: 1px solid #ccc;
border-radius: 4px;
padding: 4px 7px;
}
.todo-header input:focus {
outline: none;
border-color: rgba(82, 168, 236, 0.8);
box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
}
/*main*/
.todo-main {
margin-top: 20px;
border: 1px solid #ddd;
border-radius: 2px;
padding: 0;
}
.todo-empty {
height: 40px;
line-height: 40px;
border: 1px solid #ddd;
border-radius: 2px;
padding-left: 5px;
margin-top: 10px;
}
/*item*/
.li {
list-style: none;
height: 36px;
line-height: 36px;
padding: 0 5px;
border-bottom: 1px solid #ddd;
}
.li label {
float: left;
cursor: pointer;
}
.li label, .li input {
vertical-align: middle;
margin-right: 6px;
position: relative;
top: -1px;
}
.li button {
float: right;
display: none;
margin-top: 7px;
}
.li:hover{
background-color: rgb(235, 230, 230);
}
.li:hover button{
display: inline-block;
}
.li:before {
content: initial;
}
.li:last-child {
border-bottom: none;
}
/*footer*/
.todo-footer {
height: 40px;
line-height: 40px;
padding-left: 6px;
margin-top: 5px;
}
.todo-footer label {
display: inline-block;
margin-right: 20px;
cursor: pointer;
}
.todo-footer label input {
position: relative;
top: -1px;
vertical-align: middle;
margin-right: 5px;
}
.todo-footer button {
float: right;
margin-top: 5px;
}
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