OmniCard/mpuniapp/pages/CSS/text/white-space.uvue

<template>
  <!-- #ifdef APP && !VUE3-VAPOR -->
  <scroll-view style="flex: 1">
  <!-- #endif -->
    <view style="flex-grow: 1;">
      <scroll-view style="padding: 10px 0px; background-color: gray;justify-content: center;" direction="horizontal">
        <text class="text" :style="{ whiteSpace: data.whiteSpace }">{{data.multiLineText}}</text>
      </scroll-view>
      <text>拍平</text>
      <scroll-view style="padding: 10px 0px; background-color: gray;justify-content: center;" direction="horizontal">
        <text class="text" :style="{ whiteSpace: data.whiteSpace }" flatten>{{data.multiLineText}}</text>
      </scroll-view>

      <scroll-view style="flex: 1">
        <view class="content uni-common-mt">
          <text class="uni-title-text">setProperty 设置与 getPropertyValue 获取</text>
        </view>

        <view class="common-box">
          <!-- 普通版本 -->
          <view class="uni-common-mt">
            <text class="uni-title-text">white-space</text>
            <text class="uni-info">设置值: {{data.whiteSpace}}</text>
            <text class="uni-info">获取值: {{data.whiteSpaceActual}}</text>
            <view class="test-box">
              <text ref="textRef" class="text test-text" :style="{ whiteSpace: data.whiteSpace }">{{data.multiLineText}}</text>
            </view>
          </view>

          <!-- 拍平版本 -->
          <view class="uni-common-mt">
            <text class="uni-title-text">拍平</text>
            <text class="uni-info">设置值: {{data.whiteSpace}}</text>
            <text class="uni-info">获取值: {{data.whiteSpaceActualFlat}}</text>
            <view class="test-box">
              <text ref="textRefFlat" class="text test-text-flatten" :style="{ whiteSpace: data.whiteSpace }" flatten>{{data.multiLineText}}</text>
            </view>
          </view>
        </view>

        <view class="uni-common-mt uni-common-mb">
            <text class="uni-tips">第一个枚举值，'' (空字符串) - 空值情况</text>
            <enum-data :items="whiteSpaceEnum" title="white-space 枚举值" @change="radioChangeWhiteSpace" :compact="true"></enum-data>
            <input-data :defaultValue="data.whiteSpace" title="white-space 自定义值" type="text" @confirm="inputChangeWhiteSpace"></input-data>
        </view>
      </scroll-view>
    </view>
  <!-- #ifdef APP && !VUE3-VAPOR -->
  </scroll-view>
  <!-- #endif -->
</template>

<script setup lang="uts">
  import { ItemType } from '@/components/enum-data/enum-data-types'

  const whiteSpaceEnum: ItemType[] = [
    { value: 0, name: '' },
    { value: 1, name: 'normal' },
    { value: 2, name: 'nowrap' },
    { value: 3, name: 'pre' },
    { value: 4, name: 'pre-wrap' },
    { value: 5, name: 'pre-line' },
    { value: 6, name: 'break-spaces' },
    { value: 7, name: 'keep' }
  ]

  const data = reactive({
    multiLineText: `HBuilderX，
	轻巧、
		极速，
			极客编辑器；
				uni-app x，
					终极跨平台方案；
				uts，
			大一统语言

HBuilderX，轻巧、极速，极客编辑器；uni-app x，终极跨平台方案；uts，大一统语言`,
    whiteSpace: 'normal',
    whiteSpaceActual: '',
    whiteSpaceActualFlat: ''
  })

  const textRef = ref(null as UniTextElement | null)
  const textRefFlat = ref(null as UniTextElement | null)

  const getPropertyValues = () => {
    data.whiteSpaceActual = textRef.value?.style.getPropertyValue('white-space') ?? ''
    data.whiteSpaceActualFlat = textRefFlat.value?.style.getPropertyValue('white-space') ?? ''
  }


  const changeWhiteSpace = (value: string) => {
    data.whiteSpace = value
    textRef.value?.style.setProperty('white-space', value)
    textRefFlat.value?.style.setProperty('white-space', value)
    // 使用 nextTick 确保样式已应用后再获取值
    nextTick(() => {
      getPropertyValues()
    })
  }

  const radioChangeWhiteSpace = (index: number) => {
    const selectedItem = whiteSpaceEnum.find((item): boolean => item.value === index)
    if (selectedItem != null) {
      changeWhiteSpace(selectedItem.name)
    }
  }

  const inputChangeWhiteSpace = (value: string) => {
    changeWhiteSpace(value)
  }

  onReady(() => {
    getPropertyValues()
  })

  defineExpose({
    radioChangeWhiteSpace,
    data
  })
</script>

<style>
  .text {
    font-size: 16px;
    /* 需要设置 align-self text组件才会自适应宽度 */
    align-self: flex-start;
  }

  .common-box{
    flex-direction: row;
    justify-content: space-around;
  }

  .test-box {
    width: 180px;
    height: 200px;
    background-color: gray;
    justify-content: center;
    align-items: center;
  }

</style>