Vue3警告提示（Alert）-编程知识

可自定义设置以下属性：

警告提示内容（message），类型：string | slot，默认：‘’
警告提示的辅助性文字介绍（description），类型：string | slot，默认：‘’
指定警告提示的样式（type），类型：‘success’|‘info’|‘warn’|‘error’，默认：‘info’
是否显示关闭按钮（closable），类型：boolean，默认：false
自定义关闭按钮（closeText），类型：string | slot，默认： ‘’
自定义图标（icon），类型：string | slot，默认：‘’。showIcon 为 true 时有效
是否显示辅助图标（showIcon），类型：boolean，默认：false

效果如下图：

在这里插入图片描述

创建警告提示组件Alert.vue

<script setup lang="ts">
import { ref, onMounted, nextTick } from 'vue'
interface Props {message?: string // 警告提示内容 string | slotdescription?: string // 警告提示的辅助性文字介绍 string | slottype?: 'success'|'info'|'warn'|'error' // 指定警告提示的样式，有四种选择 success、info、warn、errorclosable?: boolean // 是否显示关闭按钮closeText?: string // 自定义关闭按钮 string | sloticon?: string // 自定义图标，showIcon 为 true 时有效 string | slotshowIcon?: boolean // 是否显示辅助图标
}
const props = withDefaults(defineProps<Props>(), {message: '',description: '',type: 'info',closable: false,closeText: '',icon: '',showIcon: false
})
const descRef = ref() // 声明一个同名的模板引用
const showDesc = ref(1)
const alert = ref()
onMounted(() => {showDesc.value = descRef.value.offsetHeightif (props.closable) {nextTick(() => {alert.value.style.height = alert.value.offsetHeight + 'px'alert.value.style.opacity = 1})}
})
const emit = defineEmits(['close'])
function onClose (e: MouseEvent):void {alert.value.style.height = 0alert.value.style.opacity = 0emit('close', e)
}
</script>
<template><div  ref="alert" class="m-alert-wrapper"><divclass="m-alert":class="[`${type}`, {'width-description': showDesc}]"><template v-if="showIcon"><span class="m-icon" v-if="!showDesc"><slot name="icon"><img v-if="icon" :src="icon" class="u-icon-img" /><svg focusable="false" v-else-if="type==='info'" class="u-icon" data-icon="info-circle" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><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 0 010-96 48.01 48.01 0 010 96z"></path></svg><svg focusable="false" v-else-if="type==='success'" class="u-icon" data-icon="check-circle" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><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 01-51.7 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 focusable="false" v-else-if="type==='warn'" class="u-icon" data-icon="exclamation-circle" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><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 0 010-96 48.01 48.01 0 010 96z"></path></svg><svg focusable="false" v-else-if="type==='error'" class="u-icon" data-icon="close-circle" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><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 01-1.9-5.2c0-4.4 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></slot></span><span class="m-big-icon" v-else><slot name="icon"><img v-if="icon" :src="icon" class="u-big-icon-img" /><svg focusable="false" v-else-if="type==='info'" class="u-icon" data-icon="info-circle" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm0 820c-205.4 0-372-166.6-372-372s166.6-372 372-372 372 166.6 372 372-166.6 372-372 372z"></path><path d="M464 336a48 48 0 1096 0 48 48 0 10-96 0zm72 112h-48c-4.4 0-8 3.6-8 8v272c0 4.4 3.6 8 8 8h48c4.4 0 8-3.6 8-8V456c0-4.4-3.6-8-8-8z"></path></svg><svg focusable="false" v-else-if="type==='success'" class="u-icon" data-icon="check-circle" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><path d="M699 353h-46.9c-10.2 0-19.9 4.9-25.9 13.3L469 584.3l-71.2-98.8c-6-8.3-15.6-13.3-25.9-13.3H325c-6.5 0-10.3 7.4-6.5 12.7l124.6 172.8a31.8 31.8 0 0051.7 0l210.6-292c3.9-5.3.1-12.7-6.4-12.7z"></path><path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm0 820c-205.4 0-372-166.6-372-372s166.6-372 372-372 372 166.6 372 372-166.6 372-372 372z"></path></svg><svg focusable="false" v-else-if="type==='warn'" class="u-icon" data-icon="exclamation-circle" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm0 820c-205.4 0-372-166.6-372-372s166.6-372 372-372 372 166.6 372 372-166.6 372-372 372z"></path><path d="M464 688a48 48 0 1096 0 48 48 0 10-96 0zm24-112h48c4.4 0 8-3.6 8-8V296c0-4.4-3.6-8-8-8h-48c-4.4 0-8 3.6-8 8v272c0 4.4 3.6 8 8 8z"></path></svg><svg focusable="false" v-else-if="type==='error'" class="u-icon" data-icon="close-circle" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><path d="M685.4 354.8c0-4.4-3.6-8-8-8l-66 .3L512 465.6l-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 670a8.32 8.32 0 00-1.9 5.2c0 4.4 3.6 8 8 8l66.1-.3L512 564.4l99.3 118.4 66 .3c4.4 0 8-3.5 8-8 0-1.9-.7-3.7-1.9-5.2L553.5 515l130.1-155c1.2-1.4 1.8-3.3 1.8-5.2z"></path><path d="M512 65C264.6 65 64 265.6 64 513s200.6 448 448 448 448-200.6 448-448S759.4 65 512 65zm0 820c-205.4 0-372-166.6-372-372s166.6-372 372-372 372 166.6 372 372-166.6 372-372 372z"></path></svg></slot></span></template><div class="m-content"><div class="u-message"><slot name="message">{{ message }}</slot></div><div class="u-description" v-if="showDesc" ref="descRef"><slot name="description">{{ description }}</slot></div></div><a class="m-close" @click="onClose" v-if="closable"><slot name="closeText"><span v-if="closeText">{{ closeText }}</span><svg v-else focusable="false" class="u-close" data-icon="close" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><path d="M563.8 512l262.5-312.9c4.4-5.2.7-13.1-6.1-13.1h-79.8c-4.7 0-9.2 2.1-12.3 5.7L511.6 449.8 295.1 191.7c-3-3.6-7.5-5.7-12.3-5.7H203c-6.8 0-10.5 7.9-6.1 13.1L459.4 512 196.9 824.9A7.95 7.95 0 00203 838h79.8c4.7 0 9.2-2.1 12.3-5.7l216.5-258.1 216.5 258.1c3 3.6 7.5 5.7 12.3 5.7h79.8c6.8 0 10.5-7.9 6.1-13.1L563.8 512z"></path></svg></slot></a></div></div>
</template>
<style lang="less" scoped>
.m-alert-wrapper {overflow: hidden;transition: height 0.3s cubic-bezier(0.78, 0.14, 0.15, 0.86), opacity 0.3s cubic-bezier(0.78, 0.14, 0.15, 0.86);
}
.m-alert {box-sizing: border-box;margin: 0;padding: 8px 12px;color: rgba(0, 0, 0, 0.88);font-size: 14px;line-height: 1.5714285714285714;list-style: none;position: relative;display: flex;align-items: center;word-wrap: break-word;border-radius: 8px;.m-icon {margin-inline-end: 8px;line-height: 0;}.m-big-icon {margin-inline-end: 12px;font-size: 24px;line-height: 0;}.u-icon-img {display: inline-block;width: 14px;height: 14px;}.u-big-icon-img {display: inline-block;width: 24px;height: 24px;}.u-icon {display: inline-block;}.m-content {flex: 1;min-width: 0;}.m-close {margin-inline-start: 8px;font-size: 12px;color: rgba(0, 0, 0, 0.45);line-height: 12px;cursor: pointer;transition: color 0.2s;&:hover {color: rgba(0, 0, 0, 0.88);}.u-close {display: inline-block;vertical-align: bottom;}}
}
.info {background-color: #e6f4ff;border: 1px solid #91caff;.m-icon, .m-big-icon {color: #1677ff;}
}
.success {background-color: #f6ffed;border: 1px solid #b7eb8f;.m-icon, .m-big-icon {color: #52c41a;}
}
.warn {background-color: #fffbe6;border: 1px solid #ffe58f;.m-icon, .m-big-icon {color: #faad14;}
}
.error {background-color: #fff2f0;border: 1px solid #ffccc7;.m-icon, .m-big-icon {color: #ff4d4f;}
}
.width-description {align-items: flex-start;padding-inline: 24px;padding-block: 20px;.u-message {display: block;margin-bottom: 8px;color: rgba(0, 0, 0, 0.88);font-size: 16px;}.u-description {display: block;}
}
</style>

在使用的页面引入

<script setup lang="ts">
import Alert from './Alert.vue'
function onClose (e: MouseEvent) {console.log(e, 'I was closed.')
}
</script>
<template><div style="width: 425px;"><h1>Alert 警告提示</h1><h2 class="mt30 mb10">共有四种样式 success、info、warn、error</h2><Space direction="vertical" style="width: 100%"><Alert message="Info Text" /><Alert message="Success Text" type="success" /><Alert message="Warn Text" type="warn" /><Alert message="Error Text" type="error" /></Space><h2 class="mt30 mb10">可关闭的警告提示</h2><Space direction="vertical" style="width: 100%"><Alertmessage="Warning Text Warning Text Warning Text Warning Text Warning Text Warning Text Warning Text"type="warn"closable@close="onClose"/><Alertmessage="Error Text"description="Error Description Error Description Error Description Error Description Error Description Error Description"type="error"closable@close="onClose"/></Space><h2 class="mt30 mb10">辅助性文字介绍</h2><Space direction="vertical" style="width: 100%"><Alert message="Success Text" type="success"><template #description><p>Success Description<span style="color: red">Success</span>Description Success Description</p></template></Alert><Alertmessage="Info Text"description="Info Description Info Description Info Description Info Description"type="info"/><Alertmessage="Warn Text"description="Warning Description Warning Description Warning Description Warning Description"type="warn"/><Alertmessage="Error Text"description="Error Description Error Description Error Description Error Description"type="error"/></Space><h2 class="mt30 mb10">辅助图标</h2><Space direction="vertical" style="width: 100%"><Alert message="Success Tips" type="success" show-icon /><Alert message="Informational Notes" type="info" show-icon /><Alert message="Warning" type="warn" show-icon /><Alert message="Error" type="error" show-icon /><Alertmessage="Success Tips"description="Detailed description and advices about successful copywriting."type="success"show-icon/><Alertmessage="Informational Notes"description="Additional description and informations about copywriting."type="info"show-icon/><Alertmessage="Warning"description="This is a warning notice about copywriting."type="warn"show-icon/><Alertmessage="Error"description="This is an error message about copywriting."type="error"show-icon/></Space><h2 class="mt30 mb10">自定义关闭文字</h2><Alert message="Info Text" type="info" closable close-text="Close Now" /><h2 class="mt30 mb10">自定义图标</h2><Space direction="vertical" style="width: 100%"><Alert message="Success Tips" type="success" show-icon><template #icon><svg focusable="false" data-icon="smile" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><path d="M288 421a48 48 0 1096 0 48 48 0 10-96 0zm352 0a48 48 0 1096 0 48 48 0 10-96 0zM512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm263 711c-34.2 34.2-74 61-118.3 79.8C611 874.2 562.3 884 512 884c-50.3 0-99-9.8-144.8-29.2A370.4 370.4 0 01248.9 775c-34.2-34.2-61-74-79.8-118.3C149.8 611 140 562.3 140 512s9.8-99 29.2-144.8A370.4 370.4 0 01249 248.9c34.2-34.2 74-61 118.3-79.8C413 149.8 461.7 140 512 140c50.3 0 99 9.8 144.8 29.2A370.4 370.4 0 01775.1 249c34.2 34.2 61 74 79.8 118.3C874.2 413 884 461.7 884 512s-9.8 99-29.2 144.8A368.89 368.89 0 01775 775zM664 533h-48.1c-4.2 0-7.8 3.2-8.1 7.4C604 589.9 562.5 629 512 629s-92.1-39.1-95.8-88.6c-.3-4.2-3.9-7.4-8.1-7.4H360a8 8 0 00-8 8.4c4.4 84.3 74.5 151.6 160 151.6s155.6-67.3 160-151.6a8 8 0 00-8-8.4z"></path></svg></template></Alert><Alert message="Informational Notes" type="info" show-icon><template #icon><svg focusable="false" data-icon="smile" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><path d="M288 421a48 48 0 1096 0 48 48 0 10-96 0zm352 0a48 48 0 1096 0 48 48 0 10-96 0zM512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm263 711c-34.2 34.2-74 61-118.3 79.8C611 874.2 562.3 884 512 884c-50.3 0-99-9.8-144.8-29.2A370.4 370.4 0 01248.9 775c-34.2-34.2-61-74-79.8-118.3C149.8 611 140 562.3 140 512s9.8-99 29.2-144.8A370.4 370.4 0 01249 248.9c34.2-34.2 74-61 118.3-79.8C413 149.8 461.7 140 512 140c50.3 0 99 9.8 144.8 29.2A370.4 370.4 0 01775.1 249c34.2 34.2 61 74 79.8 118.3C874.2 413 884 461.7 884 512s-9.8 99-29.2 144.8A368.89 368.89 0 01775 775zM664 533h-48.1c-4.2 0-7.8 3.2-8.1 7.4C604 589.9 562.5 629 512 629s-92.1-39.1-95.8-88.6c-.3-4.2-3.9-7.4-8.1-7.4H360a8 8 0 00-8 8.4c4.4 84.3 74.5 151.6 160 151.6s155.6-67.3 160-151.6a8 8 0 00-8-8.4z"></path></svg></template></Alert><Alert message="Warning" type="warn" show-icon><template #icon><svg focusable="false" data-icon="smile" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><path d="M288 421a48 48 0 1096 0 48 48 0 10-96 0zm352 0a48 48 0 1096 0 48 48 0 10-96 0zM512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm263 711c-34.2 34.2-74 61-118.3 79.8C611 874.2 562.3 884 512 884c-50.3 0-99-9.8-144.8-29.2A370.4 370.4 0 01248.9 775c-34.2-34.2-61-74-79.8-118.3C149.8 611 140 562.3 140 512s9.8-99 29.2-144.8A370.4 370.4 0 01249 248.9c34.2-34.2 74-61 118.3-79.8C413 149.8 461.7 140 512 140c50.3 0 99 9.8 144.8 29.2A370.4 370.4 0 01775.1 249c34.2 34.2 61 74 79.8 118.3C874.2 413 884 461.7 884 512s-9.8 99-29.2 144.8A368.89 368.89 0 01775 775zM664 533h-48.1c-4.2 0-7.8 3.2-8.1 7.4C604 589.9 562.5 629 512 629s-92.1-39.1-95.8-88.6c-.3-4.2-3.9-7.4-8.1-7.4H360a8 8 0 00-8 8.4c4.4 84.3 74.5 151.6 160 151.6s155.6-67.3 160-151.6a8 8 0 00-8-8.4z"></path></svg></template></Alert><Alert message="Error" type="error" show-icon><template #icon><svg focusable="false" data-icon="smile" width="1em" height="1em" fill="currentColor" aria-hidden="true" viewBox="64 64 896 896"><path d="M288 421a48 48 0 1096 0 48 48 0 10-96 0zm352 0a48 48 0 1096 0 48 48 0 10-96 0zM512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm263 711c-34.2 34.2-74 61-118.3 79.8C611 874.2 562.3 884 512 884c-50.3 0-99-9.8-144.8-29.2A370.4 370.4 0 01248.9 775c-34.2-34.2-61-74-79.8-118.3C149.8 611 140 562.3 140 512s9.8-99 29.2-144.8A370.4 370.4 0 01249 248.9c34.2-34.2 74-61 118.3-79.8C413 149.8 461.7 140 512 140c50.3 0 99 9.8 144.8 29.2A370.4 370.4 0 01775.1 249c34.2 34.2 61 74 79.8 118.3C874.2 413 884 461.7 884 512s-9.8 99-29.2 144.8A368.89 368.89 0 01775 775zM664 533h-48.1c-4.2 0-7.8 3.2-8.1 7.4C604 589.9 562.5 629 512 629s-92.1-39.1-95.8-88.6c-.3-4.2-3.9-7.4-8.1-7.4H360a8 8 0 00-8 8.4c4.4 84.3 74.5 151.6 160 151.6s155.6-67.3 160-151.6a8 8 0 00-8-8.4z"></path></svg></template></Alert><Alertmessage="Success"type="success"icon="https://cdn.jsdelivr.net/gh/themusecatcher/resources@0.0.3/1.jpg"show-icon></Alert><Alertmessage="Success Tips"description="Detailed description and advices about successful copywriting."type="success"icon="https://cdn.jsdelivr.net/gh/themusecatcher/resources@0.0.3/1.jpg"show-icon /></Space></div>
</template>