可自定义设置以下属性：
- 全局提示自动关闭的延时时长（duration）单位ms，默认为3000ms
- 消息提示距离顶部的位置（top）单位像素px，默认为30px
调用一次只展示一个提示，若调用多次则依次展示多个提示
效果如下图：
info()调用：
success()调用：
error()调用：
warn()调用：
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使用requestAnimationFrame模拟实现setTimeout和setInterval
①创建全局提示组件Message：
<script setup lang="ts">
import { ref, computed, watch } from 'vue'
import { rafTimeout, cancelRaf } from '../index'
const props = defineProps({
duration: { // 自动关闭的延时,单位ms
type: Number,
default: 3000
},
top: { // 消息距离顶部的位置，单位px
type: Number,
default: 30
}
})
enum ColorStyle { // 颜色主题对象
info = '#1890FF',
success = '#52c41a',
error = '#f5222d',
warn = '#faad14'
}
interface Message {
content: string,
mode: string
}
const resetTimer = ref()
const showMessage = ref<boolean[]>([])
const hideTimers = ref<any[]>([])
const messageContent = ref<Message[]>([])
const clear = computed(() => { // 所有提示是否已经全部变为false
return showMessage.value.every(item => !item)
})
watch(clear, (to, from) => { // 所有提示都消失后重置
if (!from && to) {
resetTimer.value = rafTimeout(() => {
messageContent.value.splice(0)
showMessage.value.splice(0)
}, 300)
}
})
function onEnter (index: number) {
cancelRaf(hideTimers.value[index])
}
function onLeave (index: number) {
onHideMessage(index)
}
function show () {
cancelRaf(resetTimer.value)
const index = messageContent.value.length - 1
console.log('index:', index)
showMessage.value[index] = true
onHideMessage(index)
}
function info (content: string) {
messageContent.value.push({
content,
mode: 'info'
})
show()
}
function success (content: string) {
messageContent.value.push({
content,
mode: 'success'
})
show()
}
function error (content: string) {
messageContent.value.push({
content,
mode: 'error'
})
show()
}
function warn (content: string) {
messageContent.value.push({
content,
mode: 'warn'
})
show()
}
defineExpose({
info,
success,
error,
warn
})
const emit = defineEmits(['close'])
function onHideMessage (index: number) {
hideTimers.value[index] = rafTimeout(() => {
showMessage.value[index] = false
emit('close')
}, props.duration)
}
</script>
<template>
<div class="m-message-wrap" :style="`top: ${top}px;`">
<TransitionGroup name="slide-fade">
<div class="m-message" v-show="showMessage[index]" v-for="(message, index) in messageContent" :key="index">
<div class="m-message-content" @mouseenter="onEnter(index)" @mouseleave="onLeave(index)">
<svg class="svg" v-if="message.mode==='info'" :style="{fill: ColorStyle[message.mode] }" viewBox="64 64 896 896" data-icon="info-circle" aria-hidden="true" focusable="false"><path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm32 664c0 4.4-3.6 8-8 8h-48c-4.4 0-8-3.6-8-8V456c0-4.4 3.6-8 8-8h48c4.4 0 8 3.6 8 8v272zm-32-344a48.01 48.01 0 0 1 0-96 48.01 48.01 0 0 1 0 96z"></path></svg>
<svg class="svg" v-if="message.mode==='success'" :style="{fill: ColorStyle[message.mode] }" viewBox="64 64 896 896" data-icon="check-circle" aria-hidden="true" focusable="false"><path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm193.5 301.7l-210.6 292a31.8 31.8 0 0 1-51.7 0L318.5 484.9c-3.8-5.3 0-12.7 6.5-12.7h46.9c10.2 0 19.9 4.9 25.9 13.3l71.2 98.8 157.2-218c6-8.3 15.6-13.3 25.9-13.3H699c6.5 0 10.3 7.4 6.5 12.7z"></path></svg>
<svg class="svg" v-if="message.mode==='error'" :style="{fill: ColorStyle[message.mode] }" viewBox="64 64 896 896" data-icon="close-circle" aria-hidden="true" focusable="false"><path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm165.4 618.2l-66-.3L512 563.4l-99.3 118.4-66.1.3c-4.4 0-8-3.5-8-8 0-1.9.7-3.7 1.9-5.2l130.1-155L340.5 359a8.32 8.32 0 0 1-1.9-5.2c0-4.4 3.6-8 8-8l66.1.3L512 464.6l99.3-118.4 66-.3c4.4 0 8 3.5 8 8 0 1.9-.7 3.7-1.9 5.2L553.5 514l130 155c1.2 1.5 1.9 3.3 1.9 5.2 0 4.4-3.6 8-8 8z"></path></svg>
<svg class="svg" v-if="message.mode==='warn'" :style="{fill: ColorStyle[message.mode] }" viewBox="64 64 896 896" data-icon="exclamation-circle" aria-hidden="true" focusable="false"><path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm-32 232c0-4.4 3.6-8 8-8h48c4.4 0 8 3.6 8 8v272c0 4.4-3.6 8-8 8h-48c-4.4 0-8-3.6-8-8V296zm32 440a48.01 48.01 0 0 1 0-96 48.01 48.01 0 0 1 0 96z"></path></svg>
<p class="content">{
{ message.content }}</p>
</div>
</div>
</TransitionGroup>
</div>
</template>
<style lang="less" scoped>
// 滑动渐变过渡效果
.slide-fade-move,
.slide-fade-enter-active,
.slide-fade-leave-active {
transition: all .3s;
}
.slide-fade-enter-from, .slide-fade-leave-to {
transform: translateY(-16px);
-ms-transform: translateY(-16px); /* IE 9 */
-webkit-transform: translateY(-16px); /* Safari and Chrome */
opacity: 0;
}
.slide-fade-leave-active {
position: absolute;
left: 0;
right: 0;
margin: 0 auto;
}
.m-message-wrap {
position: fixed;
z-index: 999; // 突出显示该层级
width: 100vw;
left: 0;
right: 0;
pointer-events: none; // 保证整个message区域不遮挡背后元素响应鼠标事件
.m-message {
text-align: center;
.m-message-content {
margin: 8px 0;
display: inline-block;
padding: 10px 16px;
background: #FFF;
border-radius: 4px;
box-shadow: 0 4px 12px rgba(0,0,0,.15);
pointer-events: auto; // 保证内容区域部分可以正常响应鼠标事件
.svg {
width: 16px;
height: 16px;
margin-right: 8px;
position: relative;
top: 2px;
}
.content {
display: inline-block;
font-size: 14px;
color: rgba(0,0,0,.65);
line-height: 20px;
}
}
}
}
</style>
②在要使用的页面引入：
<script setup lang="ts">
import { ref } from 'vue'
import Message from './Message.vue'
const message = ref()
function onInfo (content: any) {
message.value.info(content) // info调用
}
function onSuccess (content: any) {
message.value.success(content) // success调用
}
function onError (content: any) {
message.value.error(content) // error调用
}
function onWarn (content: any) {
message.value.warn(content) // warn调用
}
function onClose () {
console.log('close')
}
</script>
<template>
<div>
<Button @click="onInfo('This is a normal message')" class="mr30">Info</Button>
<Button @click="onSuccess('This is a success message')" class="mr30">Success</Button>
<Button @click="onError('This is a error message')" class="mr30">Error</Button>
<Button @click="onWarn('This is a warn message')" class="mr30">Warn</Button>
<Message ref="message" :duration="3000" :top="30" @close="onClose" />
</div>
</template>
<style lang="less" scoped>
</style>