duty-management-web/src/components/cus/CusEllipsis.vue

<template>
  <div class="cus-ellipsis" ref="ref_main">
    <div class="cus-ellipsis-temp" ref="ref_temp">{{value}}</div>
    <el-tooltip
        :disabled="!isEllipsis"
        :content="value"
        placement="top"
    >
      <div class="__text-ellipsis">{{value}}</div>
    </el-tooltip>
  </div>
</template>

<script lang="ts">
import {
  defineComponent,
  computed,
  onMounted,
  ref,
  reactive,
  watch,
  getCurrentInstance,
  ComponentInternalInstance,
  toRefs,
  nextTick
} from 'vue'
import {useStore} from 'vuex'
import {useRouter, useRoute} from 'vue-router'

export default defineComponent({
  name: 'CusEllipsis',
  components: {},
  props: {
    value: { required: true, type: String }
  },
  setup(props) {
    const store = useStore();
    const router = useRouter();
    const route = useRoute();
    const that = (getCurrentInstance() as ComponentInternalInstance).appContext.config.globalProperties
    const state = reactive({})
    const ref_main = ref()
    const ref_temp = ref()
    const isEllipsis = computed(() => {
      if (props.value) {
        return ref_temp.value?.clientWidth > ref_main.value?.clientWidth
      }
      return false
    })
    return {
      ...toRefs(state),
      isEllipsis,
      ref_main,
      ref_temp
    }
  },
})
</script>

<style scoped lang="scss">
  .cus-ellipsis {
    width: 100%;
    .cus-ellipsis-temp {
      word-break: break-all;
      white-space: nowrap;
      position: absolute;
      visibility: hidden;
    }
  }
</style>