YY_MP_REFACTOR/src/pages/information/components/academic/InformationSearchBar.vue

<template>
  <view class="wrap">
    <view class="card">
      <!-- 左侧 region -->
      <view class="region" @tap="openPicker">
        <text class="region-text" :class="{ active: !!region }">
          {{ regionLabel }}
        </text>

        <wd-icon v-if="region" name="close" color="#8a94a6" class="clear" @tap.stop="clearRegion" />
        <wd-icon v-else name="down" color="#8a94a6" size="36rpx" class="clear"></wd-icon>
      </view>

      <!-- 分割 -->
      <view class="split" />

      <!-- 输入 -->
      <view class="input-box">
        <wd-search v-model="keyword" placeholder="请输入关键词" hide-cancel :show-action="false" />
      </view>
    </view>

    <!-- picker -->
    <wd-picker v-model:visible="visible" :columns="provinces" @confirm="onConfirm" />
  </view>
</template>

<script setup lang="ts">
import { computed, ref, watch } from 'vue'

import { debounce } from '@/plugins/debounce'

import { provinces } from '@/constants/regionOptions'

const emit = defineEmits<{
  search: [{ region: string; keyword: string }]
}>()

const region = ref('')
const keyword = ref('')
const visible = ref(false)

const regionLabel = computed(() => {
  return region.value || '区域'
})

const openPicker = () => (visible.value = true)

const clearRegion = () => {
  region.value = ''
}

interface PickerConfirmEvent {
  selectedItems: [
    {
      label: string
      value: string
    },
  ]
  value: string[]
}
const onConfirm = (value: PickerConfirmEvent) => {
  region.value = value.selectedItems[0].label
}

const doSearch = () => {
  emit('search', {
    region: region.value,
    keyword: keyword.value.trim(),
  })
}

const trigger = debounce(doSearch, 350)

watch([region, keyword], trigger)
</script>

<style scoped lang="scss">
.wrap {
  padding: 24rpx;
}

.card {
  display: flex;
  align-items: center;
  height: 92rpx;

  background: #ffffff;
  border-radius: 999rpx;

  box-shadow:
    0 12rpx 30rpx rgba(0, 0, 0, 0.06),
    inset 0 0 0 1rpx rgba(0, 0, 0, 0.04);

  overflow: hidden;
}

/* region */
.region {
  display: flex;
  align-items: center;
  padding: 0 22rpx;
  height: 100%;
  flex-shrink: 0;
}

.region-text {
  font-size: 28rpx;
  margin-right: 6rpx;
  color: #8a94a6;
}

.region-text.active {
  color: #1f2937;
  font-weight: 600;
}

.clear {
  margin-left: 10rpx;
  font-size: 22rpx;
  color: #9aa4b2;
}

/* split */
.split {
  width: 1rpx;
  height: 42rpx;
  background: linear-gradient(#e5e7eb, #f3f4f6, #e5e7eb);
}

/* input */
.input-box {
  flex: 1;
  padding-right: 16rpx;
}

/* 去掉 wd-search 默认背景 */
:deep(.wd-search__block) {
  background: transparent !important;
  box-shadow: none !important;
  border: none !important;
}

:deep(.wd-search__input) {
  font-size: 30rpx;
}
</style>