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<template>
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<!-- 进入层。展示一个通知消息组件，透过点击设置触发展示。-->
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<!-- 通过 <a-popover> 实现通知消息框，配置消息流和点击事件。-->
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<a-popover
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v-model="visible"
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trigger="click"
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placement="bottomRight"
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overlayClassName="header-notice-wrapper"
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:autoAdjustOverflow="true"
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:arrowPointAtCenter="true"
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:overlayStyle="{ width: '300px', top: '50px' }"
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>
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<template slot="content">
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<!-- 透过加载线段和标签，分类显示通知。 -->
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<a-spin :spinning="loadding">
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<a-tabs>
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<a-tab-pane tab="通知" key="1">
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<!-- 显示通知列表，具体消息以组件形式显示 -->
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<a-list>
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<a-list-item>
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<a-list-item-meta
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title="你收到了 14 份新周报"
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description="一年前">
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<a-avatar
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style="background-color: white"
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slot="avatar"
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src="https://gw.alipayobjects.com/zos/rmsportal/ThXAXghbEsBCCSDihZxY.png"/>
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</a-list-item-meta>
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</a-list-item>
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<a-list-item>
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<a-list-item-meta
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title="你推荐的 曲妮妮 已通过第三轮面试"
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description="一年前">
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<a-avatar
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style="background-color: white"
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slot="avatar"
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src="https://gw.alipayobjects.com/zos/rmsportal/OKJXDXrmkNshAMvwtvhu.png"/>
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</a-list-item-meta>
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</a-list-item>
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<a-list-item>
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<a-list-item-meta
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title="这种模板可以区分多种通知类型"
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description="一年前">
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<a-avatar
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style="background-color: white"
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slot="avatar"
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src="https://gw.alipayobjects.com/zos/rmsportal/kISTdvpyTAhtGxpovNWd.png"/>
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</a-list-item-meta>
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</a-list-item>
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</a-list>
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</a-tab-pane>
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<a-tab-pane tab="消息" key="2">
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123
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</a-tab-pane>
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<a-tab-pane tab="待办" key="3">
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123
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</a-tab-pane>
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</a-tabs>
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</a-spin>
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</template>
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<!-- 点击回调消息分类加载功能 -->
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<span @click="fetchNotice" class="header-notice">
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<a-badge count="12">
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<a-icon style="font-size: 16px; padding: 4px" type="bell" />
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</a-badge>
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</span>
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</a-popover>
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</template>
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<script>
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export default {
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name: 'HeaderNotice', // 组件名称
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data () {
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return {
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loadding: false, // 加载状态
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visible: false // 视图显示或隐藏状态
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}
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},
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methods: {
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// 点击调用消息加载和切换显示状态
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fetchNotice () {
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if (!this.visible) {
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this.loadding = true
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// 模拟加载耗时
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setTimeout(() => {
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this.loadding = false
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}, 2000)
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} else {
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this.loadding = false
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}
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this.visible = !this.visible // 切换加载状态
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}
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}
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}
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</script>
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<style lang="css">
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/* 通知框样式配置 */
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.header-notice-wrapper {
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top: 50px !important;
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}
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</style>
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<style lang="less" scoped>
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/* 层级框样式 */
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.header-notice{
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display: inline-block;
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transition: all 0.3s;
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span {
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vertical-align: initial;
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}
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}
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</style>
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