奇怪的想法瞬间
借助
popper-class
属性,
当
Popover
弹出框
的位置接近边界时,应该自动切换到相反的方向进行显示,
核心:
:fallback-placements="['bottom', 'top', 'right', 'left']"
<el-row :gutter="24">
<el-col :xs="24" :sm="24" :md="24" :lg="12" :xl="12">
<el-form-item label="菜单图标" prop="icon" label-width="100px">
<el-input v-model="menuForm.icon" disabled>
<template #append>
<el-popover placement="bottom" :width="400" trigger="click"
popper-class="max-h-300px overflow-auto"
:fallback-placements="['bottom', 'top', 'right', 'left']">
<template #reference>
<el-button :icon="Aim"/>
</template>
<el-tabs v-model="activeName" class="demo-tabs" @tab-click="handleClick">
<template v-for="i in iconsTabArr">
<el-tab-pane :label="i" :name="i">
<el-row>
<el-col :xs="6" :sm="6" :md="4" :lg="3" :xl="3" v-for="item in icons" :key="item.id">
<div class="text-center cursor-pointer transition-all duration-100 hover:( bg-purple-800 text-gray-50)" @click="selectIcon(item.value)">
<i :class="item.value" class="ri-2x"></i>
</div>
</el-col>
</el-row>
</el-tab-pane>
</template>
</el-tabs>
</el-popover>
</template>
</el-input>
</el-form-item>
</el-col>
</el-row>
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popper-class="max-h-300px overflow-auto"
这个class属性我是借助
windcss
,包括剩下的class属性我都是借助这个类库,如果你没安装这个,你只需要补充以下样式即可
<style scoped>
.max-h-300px {
max-height: 300px;
.overflow-auto {
overflow: auto;
</style>
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Source: github.com/k4yt3x/flowerhd
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