bug

jiangping

2023-11-07 64b432916af9c9218ab3f3eca614e26c542142ae

 minipro_standard/uni_modules/uview-ui/components/u-skeleton/u-skeleton.vue

¶Ô±ÈÐÂÎļþ
@@ -0,0 +1,244 @@
<template>
   <view class="u-skeleton">
      <view
          class="u-skeleton__wrapper"
          ref="u-skeleton__wrapper"
          v-if="loading"
         style="display: flex; flex-direction: row;"
      >
         <view
             class="u-skeleton__wrapper__avatar"
             v-if="avatar"
             :class="[`u-skeleton__wrapper__avatar--${avatarShape}`, animate && 'animate']"
             :style="{
                  height: $u.addUnit(avatarSize),
                  width: $u.addUnit(avatarSize)
               }"
         ></view>
         <view
             class="u-skeleton__wrapper__content"
             ref="u-skeleton__wrapper__content"
            style="flex: 1;"
         >
            <view
                class="u-skeleton__wrapper__content__title"
                v-if="title"
                :style="{
                     width: uTitleWidth,
                     height: $u.addUnit(titleHeight),
                  }"
                :class="[animate && 'animate']"
            ></view>
            <view
                class="u-skeleton__wrapper__content__rows"
                :class="[animate && 'animate']"
                v-for="(item, index) in rowsArray"
                :key="index"
                :style="{
                      width: item.width,
                      height: item.height,
                      marginTop: item.marginTop
                  }"
            >
		
            </view>
         </view>
      </view>
      <slot v-else />
   </view>
</template>

<script>
   import props from './props.js';
   // #ifdef APP-NVUE
   // ç”±äºŽweex为阿里的KPI业绩考核的产物，所以不支持百分比单位，这里需要通过dom查询组件的宽度
   const dom = uni.requireNativePlugin('dom')
   const animation = uni.requireNativePlugin('animation')
   // #endif
   /**
    * Skeleton éª¨æž¶å±
    * @description éª¨æž¶å±ä¸€èˆ¬ç”¨äºŽé¡µé¢åœ¨è¯·æ±‚远程数据尚未完成时，页面用灰色块预显示本来的页面结构，给用户更好的体验。
    * @tutorial https://www.uviewui.com/components/skeleton.html
    * @property {Boolean}               loading      æ˜¯å¦æ˜¾ç¤ºéª¨æž¶å ä½å›¾ï¼Œè®¾ç½®ä¸ºfalse将会展示子组件内容 (默认 true )
    * @property {Boolean}               animate      æ˜¯å¦å¼€å¯åŠ¨ç”»æ•ˆæžœ (默认 true )
    * @property {String | Number}         rows      æ®µè½å ä½å›¾è¡Œæ•° (默认 0 )
    * @property {String | Number | Array}   rowsWidth   æ®µè½å ä½å›¾çš„宽度，可以为百分比，数值，带单位字符串等，可通过数组传入指定每个段落行的宽度 (默认 '100%' )
    * @property {String | Number | Array}   rowsHeight   æ®µè½çš„高度 (默认 18 )
    * @property {Boolean}               title      æ˜¯å¦å±•ç¤ºæ ‡é¢˜å ä½å›¾ (默认 true )
    * @property {String | Number}         titleWidth   æ ‡é¢˜çš„宽度 (默认 '50%' )
    * @property {String | Number}         titleHeight   æ ‡é¢˜çš„高度 (默认 18 )
    * @property {Boolean}               avatar      æ˜¯å¦å±•ç¤ºå¤´åƒå ä½å›¾ (默认 false )
    * @property {String | Number}         avatarSize   å¤´åƒå ä½å›¾å¤§å° (默认 32 )
    * @property {String}               avatarShape   å¤´åƒå ä½å›¾çš„形状，circle-圆形，square-方形 (默认 'circle' )
    * @example <u-search placeholder="日照香炉生紫烟" v-model="keyword"></u-search>
    */
   export default {
      name: 'u-skeleton',
      mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
      data() {
         return {
            width: 0,
         }
      },
      watch: {
         loading() {
            this.getComponentWidth()
         }
      },
      computed: {
         rowsArray() {
            if (/%$/.test(this.rowsHeight)) {
               uni.$u.error('rowsHeight参数不支持百分比单位')
            }
            const rows = []
            for (let i = 0; i < this.rows; i++) {
               let item = {},
                  // éœ€è¦é¢„防超出数组边界的情况
                  rowWidth = uni.$u.test.array(this.rowsWidth) ? (this.rowsWidth[i] || (i === this.row - 1 ? '70%' : '100%')) : i ===
                  this.rows - 1 ? '70%' : this.rowsWidth,
                  rowHeight = uni.$u.test.array(this.rowsHeight) ? (this.rowsHeight[i] || '18px') : this.rowsHeight
               // å¦‚果有title占位图，第一个段落占位图的外边距需要大一些，如果没有title占位图，第一个段落占位图则无需外边距
               // ä¹‹æ‰€ä»¥éœ€è¦è¿™ä¹ˆåšï¼Œæ˜¯å› ä¸ºweex的无能，以提升性能为借口不支持css的一些伪类
               item.marginTop = !this.title && i === 0 ? 0 : this.title && i === 0 ? '20px' : '12px'
               // å¦‚果设置的为百分比的宽度，转换为px值，因为nvue不支持百分比单位
               if (/%$/.test(rowWidth)) {
                  // é€šè¿‡parseInt提取出百分比单位中的数值部分，除以100得到百分比的小数值
                  item.width = uni.$u.addUnit(this.width * parseInt(rowWidth) / 100)
               } else {
                  item.width = uni.$u.addUnit(rowWidth)
               }
               item.height = uni.$u.addUnit(rowHeight)
               rows.push(item)
            }
            // console.log(rows);
            return rows
         },
         uTitleWidth() {
            let tWidth = 0
            if (/%$/.test(this.titleWidth)) {
               // é€šè¿‡parseInt提取出百分比单位中的数值部分，除以100得到百分比的小数值
               tWidth = uni.$u.addUnit(this.width * parseInt(this.titleWidth) / 100)
            } else {
               tWidth = uni.$u.addUnit(this.titleWidth)
            }
            return uni.$u.addUnit(tWidth)
         },
			
      },
      mounted() {
         this.init()
      },
      methods: {
         init() {
            this.getComponentWidth()
            // #ifdef APP-NVUE
            this.loading && this.animate && this.setNvueAnimation()
            // #endif
         },
         async setNvueAnimation() {
            // #ifdef APP-NVUE
            // ä¸ºäº†è®©opacity:1的状态保持一定时间，这里做一个延时
            await uni.$u.sleep(500)
            const skeleton = this.$refs['u-skeleton__wrapper'];
            skeleton && this.loading && this.animate && animation.transition(skeleton, {
               styles: {
                  opacity: 0.5
               },
               duration: 600,
            }, () => {
               // è¿™é‡Œæ— éœ€åˆ¤æ–­æ˜¯å¦loading和开启动画状态，因为最终的状态必须达到opacity: 1，否则可能
               // ä¼šåœç•™åœ¨opacity: 0.5的状态中
               animation.transition(skeleton, {
                  styles: {
                     opacity: 1
                  },
                  duration: 600,
               }, () => {
                  // åªæœ‰åœ¨loading中时，才执行动画
                  this.loading && this.animate && this.setNvueAnimation()
               })
            })
            // #endif
         },
         // èŽ·å–组件的宽度
         async getComponentWidth() {
            // å»¶æ—¶ä¸€å®šæ—¶é—´ï¼Œä»¥èŽ·å–dom尺寸
            await uni.$u.sleep(20)
            // #ifndef APP-NVUE
            this.$uGetRect('.u-skeleton__wrapper__content').then(size => {
               this.width = size.width
            })
            // #endif

            // #ifdef APP-NVUE
            const ref = this.$refs['u-skeleton__wrapper__content']
            ref && dom.getComponentRect(ref, (res) => {
               this.width = res.size.width
            })
            // #endif
         }
      }
   }
</script>

<style lang="scss" scoped>
   @import "../../libs/css/components.scss";

   @mixin background {
      /* #ifdef APP-NVUE */
      background-color: #F1F2F4;
      /* #endif */
      /* #ifndef APP-NVUE */
      background: linear-gradient(90deg, #F1F2F4 25%, #e6e6e6 37%, #F1F2F4 50%);
      background-size: 400% 100%;
      /* #endif */
   }

   .u-skeleton {
      flex: 1;
		
      &__wrapper {
         @include flex(row);
			
         &__avatar {
            @include background;
            margin-right: 15px;
			
            &--circle {
               border-radius: 100px;
            }
			
            &--square {
               border-radius: 4px;
            }
         }
			
         &__content {
            flex: 1;
			
            &__rows,
            &__title {
               @include background;
               border-radius: 3px;
            }
         }
      }
   }

   /* #ifndef APP-NVUE */
   .animate {
      animation: skeleton 1.8s ease infinite
   }

   @keyframes skeleton {
      0% {
         background-position: 100% 50%
      }

      100% {
         background-position: 0 50%
      }
   }

   /* #endif */
</style>