liguigong
4ea873c1bd
- 添加 fittingRoom 存储模块，用于管理试衣间状态和数据 - 实现试衣间页面布局和基础功能，包括轮播图、标签页、衣服网格等组件 - 开发选择模特和上传衣服功能 - 优化页面样式和交互
297 lines
8.9 KiB
Vue
297 lines
8.9 KiB
Vue
<template>
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<view class="v-tabs">
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<scroll-view
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:id="getDomId"
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:scroll-x="scroll"
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:scroll-left="scroll ? scrollLeft : 0"
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:scroll-with-animation="scroll"
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:style="{ position: fixed ? 'fixed' : 'relative', zIndex, width: '100%' }">
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<view
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class="v-tabs__container"
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:style="{
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display: scroll ? 'inline-flex' : 'flex',
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whiteSpace: scroll ? 'nowrap' : 'normal',
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background: bgColor,
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height,
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padding
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}">
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<view
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:class="['v-tabs__container-item', { disabled: !!v.disabled }, { active: current == i }]"
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v-for="(v, i) in tabs"
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:key="i"
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:style="{
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color: current == i ? activeColor : color,
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fontSize: current == i ? fontSize : fontSize,
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fontWeight: bold && current == i ? 'bold' : '',
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justifyContent: !scroll ? 'center' : '',
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flex: scroll ? '' : 1,
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padding: paddingItem
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}"
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@click="change(i)">
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<slot :row="v" :index="i">{{ field ? v[field] : v }}</slot>
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</view>
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<template v-if="!!tabs.length">
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<view
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v-if="!pills"
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:class="['v-tabs__container-line', { animation: lineAnimation }]"
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:style="{
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background: lineColor,
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width: lineWidth + 'px',
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height: lineHeight,
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borderRadius: lineRadius,
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transform: `translate3d(${lineLeft}px, 0, 0)`
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}" />
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<view
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v-else
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:class="['v-tabs__container-pills', { animation: lineAnimation }]"
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:style="{
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background: pillsColor,
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borderRadius: pillsBorderRadius,
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width: currentWidth + 'px',
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transform: `translate3d(${pillsLeft}px, 0, 0)`,
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height
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}" />
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</template>
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</view>
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</scroll-view>
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<!-- fixed 的站位高度 -->
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<view class="v-tabs__placeholder" :style="{ height: fixed ? height : '0', padding }"></view>
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</view>
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</template>
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<script>
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import { startMicroTask, throttle } from './utils'
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import props from './props'
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/**
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* v-tabs
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* @property {Number} value 选中的下标
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* @property {Array} tabs tabs 列表
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* @property {String} bgColor = '#fff' 背景颜色
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* @property {String} color = '#333' 默认颜色
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* @property {String} activeColor = '#2979ff' 选中文字颜色
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* @property {String} fontSize = '28rpx' 默认文字大小
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* @property {String} activeFontSize = '28rpx' 选中文字大小
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* @property {Boolean} bold = [true | false] 选中文字是否加粗
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* @property {Boolean} scroll = [true | false] 是否滚动
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* @property {String} height = '60rpx' tab 的高度
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* @property {String} lineHeight = '10rpx' 下划线的高度
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* @property {String} lineColor = '#2979ff' 下划线的颜色
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* @property {Number} lineScale = 0.5 下划线的宽度缩放比例
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* @property {String} lineRadius = '10rpx' 下划线圆角
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* @property {Boolean} pills = [true | false] 是否胶囊样式
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* @property {String} pillsColor = '#2979ff' 胶囊背景色
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* @property {String} pillsBorderRadius = '10rpx' 胶囊圆角大小
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* @property {String} field 如果是对象，显示的键名
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* @property {Boolean} fixed = [true | false] 是否固定
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* @property {String} paddingItem = '0 22rpx' 选项的边距
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* @property {Boolean} lineAnimation = [true | false] 下划线是否有动画
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* @property {Number} zIndex = 1993 默认层级
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*
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* @event {Function(current)} change 改变标签触发
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*/
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export default {
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name: 'VTabs',
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props,
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// #ifdef VUE3
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emits: ['update:modelValue', 'change'],
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// #endif
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data() {
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return {
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lineWidth: 30,
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currentWidth: 0, // 当前选项的宽度
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lineLeft: 0, // 滑块距离左侧的位置
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pillsLeft: 0, // 胶囊距离左侧的位置
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scrollLeft: 0, // 距离左边的位置
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container: { width: 0, height: 0, left: 0, right: 0 }, // 容器的宽高，左右距离
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current: 0, // 当前选中项
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scrollWidth: 0 // 可以滚动的宽度
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}
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},
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computed: {
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getDomId() {
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const len = 16
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const $chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678' /****默认去掉了容易混淆的字符oOLl,9gq,Vv,Uu,I1****/
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const maxPos = $chars.length
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let pwd = ''
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for (let i = 0; i < len; i++) {
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pwd += $chars.charAt(Math.floor(Math.random() * maxPos))
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}
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return `xfjpeter_${pwd}`
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}
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},
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watch: {
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// #ifdef VUE3
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modelValue: {
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// #endif
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// #ifdef VUE2
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value: {
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// #endif
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immediate: true,
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handler(newVal) {
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this.current = newVal > -1 && newVal < this.tabs.length ? newVal : 0
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this.$nextTick(this.update)
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}
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}
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},
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methods: {
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// 切换事件
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change: throttle(function(index) {
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const isDisabled = !!this.tabs[index].disabled
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if (this.current !== index && !isDisabled) {
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this.current = index
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// #ifdef VUE3
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this.$emit('update:modelValue', index)
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// #endif
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// #ifdef VUE2
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this.$emit('input', index)
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// #endif
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this.$emit('change', index)
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}
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}, 300),
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createQueryHandler() {
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let query
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// #ifndef MP-ALIPAY
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query = uni.createSelectorQuery().in(this)
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// #endif
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// #ifdef MP-ALIPAY
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query = uni.createSelectorQuery()
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// #endif
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return query
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},
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update() {
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const _this = this
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startMicroTask(() => {
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// 没有列表的时候，不执行
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if (!this.tabs.length) return
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_this
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.createQueryHandler()
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.select(`#${this.getDomId}`)
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.boundingClientRect(data => {
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const { width, height, left, right } = data || {}
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// 获取容器的相关属性
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this.container = { width, height, left, right: right - width }
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_this.calcScrollWidth()
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_this.setScrollLeft()
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_this.setLine()
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})
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.exec()
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})
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},
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// 计算可以滚动的宽度
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calcScrollWidth(callback) {
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const view = this.createQueryHandler().select(`#${this.getDomId}`)
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view.fields({ scrollOffset: true })
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view
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.scrollOffset(res => {
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if (typeof callback === 'function') {
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callback(res)
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} else {
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// 获取滚动条的宽度
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this.scrollWidth = res.scrollWidth
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}
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})
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.exec()
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},
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// 设置滚动条滚动的进度
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setScrollLeft() {
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this.calcScrollWidth(res => {
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// 动态读取 scrollLeft
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let scrollLeft = res.scrollLeft
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this.createQueryHandler()
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.select(`#${this.getDomId} .v-tabs__container-item.active`)
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.boundingClientRect(data => {
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if (!data) return
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// 除开当前选项外容器的一半宽度
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let curHalfWidth = (this.container.width - data.width) / 2
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let scrollDiff = this.scrollWidth - this.container.width
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// 在原有滚动条的基础上 + (当前元素距离左侧的距离 - 计算的一半宽度) - 容器的外边距之类的
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scrollLeft += data.left - curHalfWidth - this.container.left
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// 已经滚动在左侧了
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if (scrollLeft < 0) scrollLeft = 0
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// 已经超出右侧了
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else if (scrollLeft > scrollDiff) scrollLeft = scrollDiff
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this.scrollLeft = scrollLeft
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})
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.exec()
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})
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},
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setLine() {
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this.calcScrollWidth(res => {
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const scrollLeft = res.scrollLeft
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this.createQueryHandler()
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.select(`#${this.getDomId} .v-tabs__container-item.active`)
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.boundingClientRect(data => {
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if (!data) return
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if (this.pills) {
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this.currentWidth = data.width
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this.pillsLeft = scrollLeft + data.left - this.container.left
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} else {
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this.lineWidth = data.width * this.lineScale
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this.lineLeft = scrollLeft + data.left + (data.width - data.width * this.lineScale) / 2 - this.container.left
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}
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})
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.exec()
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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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.v-tabs {
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width: 100%;
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box-sizing: border-box;
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overflow: hidden;
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/* #ifdef H5 */
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::-webkit-scrollbar {
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display: none;
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}
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/* #endif */
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&__container {
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min-width: 100%;
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position: relative;
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display: inline-flex;
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align-items: center;
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white-space: nowrap;
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overflow: hidden;
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&-item {
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flex-shrink: 0;
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display: flex;
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align-items: center;
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height: 100%;
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position: relative;
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z-index: 10;
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transition: all 0.3s;
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white-space: nowrap;
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&.disabled {
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opacity: 0.5;
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color: #999;
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}
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}
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&-line {
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position: absolute;
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left: 0;
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bottom: 0;
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}
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&-pills {
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position: absolute;
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z-index: 9;
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}
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&-line,
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&-pills {
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&.animation {
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transition: all 0.3s linear;
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}
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}
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}
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}
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</style>
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