<template>
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<view
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v-if="show"
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class="tn-skeleton-class tn-skeleton"
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:class="[backgroundColorClass]"
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:style="[skeletonStyle]"
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@touchmove.stop.prevent
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>
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<view
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v-for="(item, index) in rectNodes"
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:key="$t.uuid()"
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class="tn-skeleton__item tn-skeleton__item--rect"
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:class="[elBackgroundColorClass, {'tn-skeleton__item--fade': animation}]"
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:style="[itemStyle('rect', item)]"
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></view>
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<view
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v-for="(item, index) in circleNodes"
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:key="$t.uuid()"
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class="tn-skeleton__item tn-skeleton__item--circle"
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:class="[elBackgroundColorClass, {'tn-skeleton__item--fade': animation}]"
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:style="[itemStyle('circle', item)]"
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></view>
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<view
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v-for="(item, index) in filletNodes"
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:key="$t.uuid()"
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class="tn-skeleton__item tn-skeleton__item--fillet"
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:class="[elBackgroundColorClass, {'tn-skeleton__item--fade': animation}]"
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:style="[itemStyle('fillet', item)]"
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></view>
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</view>
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</template>
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<script>
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import componentsColorMixin from '../../libs/mixin/components_color.js'
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export default {
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name: 'tn-skeleton',
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mixins: [ componentsColorMixin ],
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props: {
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// 显示骨架屏
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show: {
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type: Boolean,
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default: false
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},
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// 需要渲染的元素背景颜色
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elBackgroundColor: {
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type: String,
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default: ''
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},
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// 开启加载动画
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animation: {
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type: Boolean,
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default: true
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},
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// 矩形元素自定义样式
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rectCustomStyle: {
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type: Object,
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default() {
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return {}
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}
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},
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// 圆形元素自定义样式
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circleCustomStyle: {
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type: Object,
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default() {
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return {}
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}
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},
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// 圆角元素自定义样式
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filletCustomStyle: {
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type: Object,
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default() {
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return {}
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}
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}
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},
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computed: {
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elBackgroundColorStyle() {
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return this.$t.color.getBackgroundColorStyle(this.elBackgroundColor)
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},
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elBackgroundColorClass() {
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return this.$t.color.getBackgroundColorInternalClass(this.elBackgroundColor)
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},
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// 骨架屏样式
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skeletonStyle() {
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let style = {}
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style.width = this.skeletonWidth + 'px'
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style.height = this.skeletonHeight + 'px'
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if (this.backgroundColorStyle) {
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style.backgroundColor = this.backgroundColorStyle
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}
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style.left = this.left + 'px'
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style.top = this.top + 'px'
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return style
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},
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// 元素样式
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itemStyle() {
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return (type, item) => {
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let style = {}
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style.width = item.width + 'px'
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style.height = item.height + 'px'
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if (this.elBackgroundColorStyle) {
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style.backgroundColor = this.elBackgroundColorStyle
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}
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style.left = (item.left - this.left) + 'px'
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style.top = (item.top - this.top) + 'px'
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if (type === 'rect') {
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Object.assign(style, this.rectCustomStyle)
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} else if (type === 'circle') {
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style.borderRadius = (item.width / 2) + 'px'
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Object.assign(style, this.circleCustomStyle)
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} else if (type === 'fillet') {
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Object.assign(style, this.filletCustomStyle)
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}
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return style
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}
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}
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},
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data() {
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return {
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// 骨架屏宽度
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skeletonWidth: 750,
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// 骨架屏高度
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skeletonHeight: 1500,
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// 圆角元素
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filletNodes: [],
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// 圆形元素
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circleNodes: [],
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// 矩形元素
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rectNodes: [],
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// 元素偏移位置
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top: 0,
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left: 0
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}
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},
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mounted() {
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this.$nextTick(() => {
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// 获取系统信息
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const systemInfo = uni.getSystemInfoSync()
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this.skeletonWidth = systemInfo.safeArea.width
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this.skeletonHeight = systemInfo.safeArea.height
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this.selectQueryInfo()
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})
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},
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methods: {
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// 查询节点信息
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selectQueryInfo() {
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// 获取整个父容器的宽高作为骨架屏的宽高
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// 在微信小程序中，如果把骨架屏放入组件使用，需要in(this)上下文为父组件才有效
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let query = null
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// 在微信小程序中，如果把骨架屏放入组件使用，需要in(this)上下文为父组件才有效
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// #ifdef MP-WEIXIN
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query = uni.createSelectorQuery().in(this.$parent)
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// #endif
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// #ifndef MP-WEIXIN
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query = uni.createSelectorQuery()
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// #endif
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query.selectAll('.tn-skeleton').boundingClientRect().exec((res) => {
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console.log(res);
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this.skeletonWidth = res[0][0].width
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this.skeletonHeight = res[0][0].height
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this.top = res[0][0].bottom - res[0][0].height
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this.left = res[0][0].left
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})
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// 获取元素列表
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this.getRectElements()
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this.getCircleElements()
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this.getFillteElements()
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},
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// 矩形元素列表
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getRectElements() {
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let query = null
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// 在微信小程序中，如果把骨架屏放入组件使用，需要in(this)上下文为父组件才有效
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// #ifdef MP-WEIXIN
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query = uni.createSelectorQuery().in(this.$parent)
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// #endif
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// #ifndef MP-WEIXIN
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query = uni.createSelectorQuery()
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// #endif
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query.selectAll('.tn-skeleton-rect').boundingClientRect().exec((res) => {
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this.rectNodes = res[0]
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})
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},
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// 圆形元素列表
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getCircleElements() {
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let query = null
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// 在微信小程序中，如果把骨架屏放入组件使用，需要in(this)上下文为父组件才有效
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// #ifdef MP-WEIXIN
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query = uni.createSelectorQuery().in(this.$parent)
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// #endif
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// #ifndef MP-WEIXIN
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query = uni.createSelectorQuery()
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// #endif
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query.selectAll('.tn-skeleton-circle').boundingClientRect().exec((res) => {
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this.circleNodes = res[0]
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})
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},
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// 圆角元素列表
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getFillteElements() {
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let query = null
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// 在微信小程序中，如果把骨架屏放入组件使用，需要in(this)上下文为父组件才有效
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// #ifdef MP-WEIXIN
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query = uni.createSelectorQuery().in(this.$parent)
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// #endif
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// #ifndef MP-WEIXIN
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query = uni.createSelectorQuery()
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// #endif
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query.selectAll('.tn-skeleton-fillet').boundingClientRect().exec((res) => {
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this.filletNodes = res[0]
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})
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}
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}
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}
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</script>
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<style lang="scss" scoped>
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.tn-skeleton {
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position: absolute;
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z-index: 9998;
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overflow: hidden;
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background-color: #FFFFFF;
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&__item {
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position: absolute;
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background-color: #F0F0F0;
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&--fillet {
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border-radius: 10rpx;
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}
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&--fade {
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width: 100%;
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height: 100%;
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background-color: #E6E6E6;
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animation-duration: 1.5s;
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animation-name: blink;
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animation-timing-function: ease-in-out;
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animation-iteration-count: infinite;
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}
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}
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}
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@keyframes blink {
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0% {
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opacity: 1;
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}
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50% {
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opacity: 0.4;
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}
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100% {
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opacity: 1;
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}
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}
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</style>
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