vue3+ts制作一个简易的pc便签
App.vue
<template>
<div id="root">
<div className="todo-container">
<div className="todo-wrap">
<Header :addtodo="addtodo"/>
<List :todos="state.todos" :deletetodo="deletetodo" :updatetodo="updatetodo"/>
<Footer :todos="state.todos" :chickall="chickall" :clearall="clearall"/>
div>
div>
div>
template>
<script lang="ts">
import { defineComponent, onMounted, reactive, watch } from "vue";
import Footer from "./components/footer/footer.vue";
import Header from "./components/header/header.vue";
import List from "./components/list/list.vue";
//导入接口类型
import {todo} from "./type/todo"
//导入缓存文件
import {savetodos,readtodos} from "./until/localStorageUtils"
export default defineComponent({
components: { List, Header, Footer },
setup() {
const state = reactive<{todos:todo []}>({
todos: [
{ id: 1, title: "吃饭", isture: true },
{ id: 2, title: "睡觉", isture: false },
{ id: 3, title: "打游戏", isture: false },
{ id: 4, title: "打代码", isture: true },
],
});
//定义一个方法用来接收输入框里面传来的数据并把它加到state.todos里面面
const addtodo=(todo:todo)=>{
state.todos.unshift(todo)
}
console.log(state.todos);
//定义一个改变istrue的方法
const updatetodo=(todo:todo,is:boolean)=>{
todo.isture=is
}
//定义一个删除的方法
const deletetodo=(index:number)=>{
state.todos.splice(index,1)
}
//定义全选全不选的方法
const chickall=(iss:boolean)=>{
state.todos.forEach((a)=>{
a.isture= iss
})
}
//定义清楚选中的方法
const clearall=()=>{
state.todos= state.todos.filter(a=>!a.isture)
}
watch(()=>state.todos,savetodos,{deep:true})
onMounted(()=>{
setTimeout(()=>{
state.todos=readtodos()
},1000)
})
return {
state,
addtodo,
deletetodo,
updatetodo,
chickall,
clearall
};
},
});
script>
<style>
@import "./App.css";
style>
App.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: #ecb372;
border: none;
}
.btn-danger:hover {
color: #fff;
/* background-color: #ffbd06; */
opacity: 1 !important;
transform: scale(1.1,1.1);
}
.btn:focus {
outline: none;
}
.todo-container {
width: 600px;
margin: 0 auto;
}
.todo-container .todo-wrap {
margin-top: 100px;
padding: 10px;
border: 2px solid rgb(255, 255, 255);
border-radius: 5px;
/* background-color:rgb(250, 232, 235); */
color: rgb(8, 8, 8);
}
body{
background-color: rgb(253, 210, 217);
background-size: 100% 200%;
}
footer.vue
<template>
<div class="todo-footer">
<label>
<input type="checkbox" v-model="footall" />全选
label>
<span>
<span>已完{{count}} span> / 全部{{todos.length}}
span>
<button class="clearsllbtn" @click="clearall" >清除已完成任务button>
div>
template>
<style scoped>
@import"./footer.css";
style>
<script lang="ts">
//导入接口类型
import { todo } from "../../type/todo";
import { computed, defineComponent } from "vue";
export default defineComponent({
props: {
todos: {
type: Array as () => todo[],
required:true
},
chickall:{
type: Function,
required:true
},
clearall:{
type:Function,
required:true
}
},
setup(props) {
const count = computed(() => {
return props.todos.reduce(
(pre, todo, index) => pre + (todo.isture ? 1 : 0),
0
);
});
const footall=computed({
get(){
return count.value>0&&props.todos.length===count.value
} ,
set(val){
props.chickall(val)
}
})
return {
count,
footall
};
},
});
script>
footer.css
/*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;
}
.clearsllbtn{
margin-left:200px;
border:none;
border-radius: 13px;
}
.clearsllbtn:hover{
background-color: palevioletred;
}
header.vue
<template>
<div class="todo-header">
<input
type="text"
placeholder="请输入你的任务名称，按回车键确认"
v-model="title"
@keyup.enter="add"
/>
div>
template>
<style scoped>
@import "./header.css";
style>
<script lang="ts">
import { defineComponent, ref } from "vue";
//导入接口类型
import { todo } from "../../type/todo";
export default defineComponent({
props: {
addtodo: {
type: Function,
required: true,
},
},
setup(props) {
const title = ref("");
const add = () => {
if (title.value == "") {
alert("请输入内容");
return
}
const todo: todo = {
id: Date.now(),
title: title.value,
isture: false,
};
props.addtodo(todo);
title.value=''
};
return {
add,
title,
};
},
});
script>
header.css
/*header*/
.todo-header input {
width: 560px;
height: 28px;
font-size: 14px;
border: 1px solid #ccc;
border-radius: 4px;
padding: 4px 7px;
opacity: 0.7;
}
.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);
}
list.vue
<template>
<ul className="todo-main">
<Listitem
v-for="(todos,index) in todos"
:key="todos.id"
:todos='todos'
:deletetodo="deletetodo"
:index="index"
:updatetodo="updatetodo"
>Listitem>
ul>
template>
<style scoped>
@import "./list.css";
style>
<script lang="ts">
import Listitem from "./listitem/listitem.vue";
import { defineComponent } from "vue";
export default defineComponent({
components: {
Listitem,
},
props: {
todos: {
type: Object,
required: true,
},
deletetodo: {
type: Function,
},
updatetodo:{
type:Function,
requirtd:true
}
},
setup() {},
});
script>
list.css
/*main*/
.todo-main {
margin-left: 0px;
border: 1px solid #ddd;
border-radius: 2px;
padding: 0px;
background-color: white ;
opacity: 0.7;
}
.todo-empty {
height: 40px;
line-height: 40px;
border: 1px solid #ddd;
border-radius: 2px;
padding-left: 5px;
margin-top: 10px;
}
listitem.vue
<template>
<li class="itli">
<label>
<input
type="checkbox"
v-model="isture"
/>
<span>{{todos.title}}span>
label>
<button
class="btn btn-danger"
@click="deletetodoitem"
>删除button>
li>
template>
<style scoped>
@import "./listitem.css";
style>
<script lang="ts">
import { computed, defineComponent, } from "vue";
//导入接口类型
import { todo } from "../../../type/todo";
export default defineComponent({
props: {
//定义todos的类型是自己定义的todo接口
todos: {
type:Object as () => todo,
required: true,
},
index: Number,
deletetodo: {
type: Function,
required: true,
},
updatetodo: {
type: Function,
required: true,
},
},
setup(props) {
//定义一个点击事件把每个item的index传过去
const deletetodoitem = () => {
// alert("asdsa")
// console.log(props.todos);
if (window.confirm("确定删除吗，亲~")) {
props.deletetodo(props.index);
// alert(props.deletetodo)
}
};
//定义一个计算属性来把isture传过去让app.vue来控制
const isture =computed({
get(){
return props.todos.isture
},
set(val){
props.updatetodo(props.todos,val)
}
})
return {
deletetodoitem,
isture,
};
},
});
script>
listitem.css
/*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: 3px;
opacity: 1;
margin-right: 10px;
}
li:before {
content: initial;
}
li:last-child {
border-bottom: none;
}
.itli{
width: 100%;
}
.itli:hover {
width: 98.5%;
background-color: palevioletred;
}
.itli:hover button{
display: block;
}
.btn{
display: none;
}
.btn-danger{
display: none;
}
缓存部分
localStorageUtils.ts
import { todo } from "@/type/todo";
//保存数据到浏览器中
export function savetodos(todos:todo []){
localStorage.setItem('todo_key',JSON.stringify(todos))
}
//从浏览器的缓存中读取数据
export function readtodos():todo []{
return JSON.parse(localStorage.getItem('todo_key')||'[]')
}