wzj-vue/src/components/SizeSelect/index.vue

<template>
  <div>
    <el-dropdown trigger="click" @command="handleSetSize">
      <div class="size-icon--style">
        <svg-icon class-name="size-icon" icon-class="size" />
      </div>
      <template #dropdown>
        <el-dropdown-menu>
          <el-dropdown-item v-for="item of sizeOptions" :key="item.value" :disabled="size === item.value" :command="item.value">
            {{ item.label }}
          </el-dropdown-item>
        </el-dropdown-menu>
      </template>
    </el-dropdown>
  </div>
</template>

<script setup lang="ts">
import useAppStore from '@/store/modules/app';

const appStore = useAppStore();
const size = computed(() => appStore.size);

const sizeOptions = ref([
  { label: '较大', value: 'large' },
  { label: '默认', value: 'default' },
  { label: '稍小', value: 'small' }
]);

const handleSetSize = (size: 'large' | 'default' | 'small') => {
  appStore.setSize(size);
};
</script>

<style lang="scss" scoped>
.size-icon--style {
  font-size: 18px;
  line-height: 50px;
  padding-right: 7px;
}
</style>