MyItem.vue : 主要是引入了import 'animate.css'样式库,animate.css样式库配置见上一篇文章animate.css样式库,然后再li标签外套了transition标签,引用了name里面的名称是animate.css拿过来的,绑定了enter-active-class和leave-active-classanimate库内自带的绑定样式
<template>
<!--appear上来就有动画-->
<transition
name="animate__animated animate__bounce"
appear
enter-active-class="animate__jackInTheBox"
leave-active-class="animate__zoomOutDown"
>
<li>
<label >
<input type="checkbox" :checked="todo.done" @change="handleCheck(todo.id)"/> <!--给input指定一个checked选项,如果是true就勾选上,如果是false就不勾选-->
<span v-show="!todo.isEdit">{{todo.title}}</span>
<input
type="text"
v-show="todo.isEdit"
:value="todo.title"
@blur="handleBlur(todo,$event)"
ref="inputTitle"
>
</label>
<button class="btn btn-danger" @click="handleDelete(todo.id)">删除</button>
<button class="btn btn-edit" @click="handleEdit(todo)" v-show="!todo.isEdit">编辑</button>
</li>
</transition>
</template>
<script>
import 'animate.css'
import pubsub from 'pubsub-js'
export default {
name: "MyItem",
//声明接收对象
props:[
'todo',
],
methods:{
//勾选or取消勾选
handleCheck(id){
//通知App组件将对应的todo对象的done值取反
// this.checkTodo(id)
this.$bus.$emit('checkTodo',id)
},
//删除
handleDelete(id){
if (confirm('确定删除吗')){ //confirm根据用户的交互来决定到底是布尔值为真还是为假,点击确定为真,点击取消为假
// this.deleteTodo(id)
pubsub.publish('deleteTodo',id)
}
},
//编辑
handleEdit(todo){
if (todo.hasOwnProperty.call('isEdit')){
todo.isEdit = true
}else {
console.log('a@@')
this.$set(todo,'isEdit',true)
}
// setTimeout(()=>{
// this.$refs.inputTitle.focus()
// },20)
this.$nextTick(function (){
this.$refs.inputTitle.focus()
})
},
//失去焦点回调(真正执行修改逻辑)
handleBlur(todo,e){
todo.isEdit=false
if (!e.target.value.trim())return alert('输入不能为空')
this.$bus.$emit('updateTodo',todo.id,e.target.value)
}
}
}
</script>
<style scoped>
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;
}
li:before{
content: initial;
}
li:last-child{
border-bottom: none;
}
li:hover{
background-color: #ddd;
}
li:hover button{
display: block;
}
</style>
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