531 lines
16 KiB
Vue
531 lines
16 KiB
Vue
<template>
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<div id="base-slide-wrapper" ref="slideWrapper">
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<div class="indicator-home" v-if="showIndicator && indicatorType === 'home'">
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<div class="notice" :style="noticeStyle"><span>下拉刷新内容</span></div>
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<div class="toolbar" ref="toolbar" :style="toolbarStyle">
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<div class="left">直播</div>
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<div class="tab-ctn">
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<div class="tabs" ref="tabs">
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<div class="tab"
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:class="currentSlideItemIndex === 0?'active':''"
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@click="changeIndex(false,0)">
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<span>关注</span></div>
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<div class="tab"
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:class="currentSlideItemIndex === 1?'active':''"
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@click="changeIndex(false,1)"><span>推荐</span></div>
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</div>
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<div class="indicator" ref="indicator"></div>
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</div>
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<div class="right" :style="{opacity:loading ? 0 : 1}">搜索</div>
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</div>
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<div class="loading" :style="loadingStyle">AA</div>
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</div>
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<div class="indicator-me" :class="indicatorFixed?'fixed':''" v-if="showIndicator && indicatorType === 'me'">
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<div class="tabs" ref="tabs">
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<div class="tab"
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:class="currentSlideItemIndex === 0?'active':''"
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@click="changeIndex(false,0)">
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<span>作品</span></div>
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<div class="tab"
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:class="currentSlideItemIndex === 1?'active':''"
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@click.stop="changeIndex(false,1)">
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<span>私密</span>
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</div>
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<div class="tab"
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:class="currentSlideItemIndex === 2?'active':''"
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@click="changeIndex(false,2,$event)">
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<span>喜欢</span>
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</div>
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</div>
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<div class="indicator" ref="indicator"></div>
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</div>
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<div id="base-slide-list" ref="slideList"
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:style="{'flex-direction':direction,marginTop:indicatorFixed?'42px':'0'}"
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@touchstart="touchStart($event)"
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@touchmove="touchMove($event)"
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@touchend="touchEnd($event)">
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<slot></slot>
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</div>
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</div>
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</template>
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<script>
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export default {
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name: "BaseSlideList",
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props: {
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render: {
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type: Function,
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default: () => {
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return null
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}
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},
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list: {
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type: Array,
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default: () => {
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return []
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}
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},
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canMove: {
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type: Boolean,
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default: () => true
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},
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direction: {
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type: String,
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default: () => 'row'
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},
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showIndicator: {
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type: Boolean,
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default: () => false
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},
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indicatorFixed: {
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type: Boolean,
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default: () => false
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},
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indicatorType: {
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type: String,
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default: () => 'home'
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},
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useHomeLoading: {
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type: Boolean,
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default: () => false
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},
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virtual: {
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type: Boolean,
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default: () => false
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},
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total: {
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type: Number,
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default: () => 20
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},
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activeIndex: {
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type: Number,
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default: () => 0
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},
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},
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computed: {
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toolbarStyle() {
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if (!this.useHomeLoading) return
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return {
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opacity: 1 - this.homeLoadingMoveYDistance / 20,
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'transition-duration': this.toolbarStyleTransitionDuration + 'ms',
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transform: `translate3d(0, ${this.homeLoadingMoveYDistance > 60 ? 60 : this.homeLoadingMoveYDistance}px, 0)`,
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}
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},
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noticeStyle() {
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if (!this.useHomeLoading) return
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return {
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opacity: this.homeLoadingMoveYDistance / 60,
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'transition-duration': this.toolbarStyleTransitionDuration + 'ms',
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transform: `translate3d(0, ${this.homeLoadingMoveYDistance > 60 ? 60 : this.homeLoadingMoveYDistance}px, 0)`,
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}
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},
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loadingStyle() {
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if (!this.useHomeLoading) return
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if (this.loading) {
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return {
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opacity: 1,
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'transition-duration': '300ms',
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}
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}
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if (this.homeLoadingMoveYDistance !== 0) {
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return {
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opacity: this.homeLoadingMoveYDistance / 60,
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'transition-duration': this.toolbarStyleTransitionDuration + 'ms',
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transform: `translate3d(0, ${this.homeLoadingMoveYDistance > 60 ? 60 : this.homeLoadingMoveYDistance}px, 0)`,
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}
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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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loading: false,
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wrapperWidth: 0,
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wrapperHeight: 0,
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startLocationX: 0,
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startLocationY: 0,
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moveXDistance: 0,
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moveYDistance: 0,
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judgeValue: 10,
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startTime: 0,
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currentSlideItemIndex: 0,
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isDrawRight: true,
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isDrawDown: true,
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isCanRightWiping: false,
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isCanDownWiping: false,
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isNeedCheck: true,
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slideList: null,
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slideItems: null,
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indicatorRef: null,
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slideItemsWidths: [],
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slideItemsHeights: [],
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tabIndicatorRelationActiveIndexLefts: [],//指标和slideItem的index的对应left,
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indicatorSpace: 0,//indicator之间的间距
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toolbarStyleTransitionDuration: 0,
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homeLoadingMoveYDistance: 0,//homeLoading专用的MoveYDistance，因为MoveYDistance是一直更新的，左右划的时候也在更新，会造成
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//在往左划，但上面的toolbar开始往下移了，所以需要用一个专用的值来有条件的保存MoveYDistance，即只direction = row的时候
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}
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},
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watch: {
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activeIndex() {
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// console.log('activeIndex')
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this.changeIndex()
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},
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},
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mounted: async function () {
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await this.checkChildren(true)
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if (this.virtual && this.render) {
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this.list.slice(0, 2).map(v => {
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this.slideList.innerHTML += this.render(v)
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})
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}
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await this.checkChildren(true)
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this.showIndicator && this.initTabs()
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this.changeIndex(true)
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},
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methods: {
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changeIndex(init = false, index = null, e) {
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this.currentSlideItemIndex = index !== null ? index : this.activeIndex
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!init && this.$setCss(this.slideList, 'transition-duration', `300ms`)
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if (this.direction === 'row') {
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this.$setCss(this.slideList, 'transform', `translate3d(${-this.getWidth(this.currentSlideItemIndex) + this.moveXDistance}px, 0px, 0px)`)
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if (this.showIndicator) {
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this.$setCss(this.indicatorRef, 'left', this.tabIndicatorRelationActiveIndexLefts[this.currentSlideItemIndex] + 'px')
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}
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} else {
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this.$setCss(this.slideList, 'transform', `translate3d(0px, ${-this.getHeight(this.currentSlideItemIndex) + this.moveYDistance}px, 0px)`)
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}
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this.$attrs['onUpdate:active-index'] && this.$emit('update:active-index', this.currentSlideItemIndex)
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},
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initTabs() {
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let tabs = this.$refs.tabs
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this.indicatorRef = this.$refs.indicator
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for (let i = 0; i < tabs.children.length; i++) {
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let item = tabs.children[i]
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this.tabWidth = this.$getCss(item, 'width')
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this.tabIndicatorRelationActiveIndexLefts.push(
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item.getBoundingClientRect().x - tabs.children[0].getBoundingClientRect().x + (this.indicatorType === 'home' ? this.tabWidth * 0.15 : 0))
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}
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this.indicatorSpace = this.tabIndicatorRelationActiveIndexLefts[1] - this.tabIndicatorRelationActiveIndexLefts[0]
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if (this.showIndicator) {
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this.$setCss(this.indicatorRef, 'transition-duration', `300ms`)
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this.$setCss(this.indicatorRef, 'left', this.tabIndicatorRelationActiveIndexLefts[this.currentSlideItemIndex] + 'px')
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}
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},
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checkChildren(init) {
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this.slideList = this.$refs.slideList
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this.slideItems = this.slideList.children
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this.wrapperWidth = this.$getCss(this.slideList, 'width')
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this.wrapperHeight = this.$getCss(this.slideList, 'height')
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for (let i = 0; i < this.slideItems.length; i++) {
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let el = this.slideItems[i]
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this.slideItemsWidths.push(this.$getCss(el, 'width'))
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this.slideItemsHeights.push(this.$getCss(el, 'height'))
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}
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},
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touchStart(e) {
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this.$setCss(this.slideList, 'transition-duration', `0ms`)
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this.showIndicator && this.$setCss(this.indicatorRef, 'transition-duration', `0ms`)
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this.toolbarStyleTransitionDuration = 0
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this.startLocationX = e.touches[0].pageX
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this.startLocationY = e.touches[0].pageY
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this.startTime = Date.now()
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},
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touchMove(e) {
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if (!this.canMove) return;
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this.moveXDistance = e.touches[0].pageX - this.startLocationX
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this.moveYDistance = e.touches[0].pageY - this.startLocationY
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this.isDrawDown = this.moveYDistance < 0
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this.checkDirection()
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//多重判断，this.isCanDownWiping 这个判断是为了，只能在一个方向上，进行页面更新，比如说，我斜着画，就会出现toolbar又在下移，
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//slideitem同时在左右移的情况，所以不能直接使用moveYDistance
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if (this.useHomeLoading && this.isCanDownWiping && !this.loading) {
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this.homeLoadingMoveYDistance = this.moveYDistance
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}
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//me页面，需要获取向下滑动的时候
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if (!this.isDrawDown) {
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this.$attrs['onFirst'] && this.$emit('first', this.moveYDistance)
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}
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//todo 太卡了，后面考虑用原生js来写
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// this.$attrs['onMove'] && this.$emit('move', {
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// x: {distance: this.moveXDistance, isDrawRight: this.isDrawRight},
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// y: {distance: this.moveYDistance, isDrawDown: this.isDrawDown},
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// })
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if (this.isCanDownWiping) {
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if (this.currentSlideItemIndex === 0 && !this.isDrawDown) return; //在第一个item，并且想往下划。
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if (this.virtual) {
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if (this.currentSlideItemIndex === this.list.length - 1 && this.isDrawDown) return
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} else {
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if (this.currentSlideItemIndex === this.slideItems.length - 1 && this.isDrawDown) return
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}
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// console.log('this.isCanDownWiping')
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this.$stopPropagation(e)
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this.$setCss(this.slideList, 'transform', `translate3d(0px, ${-this.getHeight(this.currentSlideItemIndex) + this.moveYDistance}px, 0px)`)
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}
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},
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touchEnd(e) {
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this.$attrs['onEnd'] && this.$emit('end')
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if (this.useHomeLoading) {
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if (this.homeLoadingMoveYDistance > 60) {
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this.getData()
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}
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this.toolbarStyleTransitionDuration = 300
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this.homeLoadingMoveYDistance = 0
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}
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if (this.isCanDownWiping) {
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this.$setCss(this.slideList, 'transition-duration', `300ms`)
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this.showIndicator && this.$setCss(this.indicatorRef, 'transition-duration', `300ms`)
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let endTime = Date.now()
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let gapTime = endTime - this.startTime
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if (this.currentSlideItemIndex === 0 && !this.isDrawDown) return
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//禁止在最后页面的时候，向右划
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if (this.virtual) {
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if (this.currentSlideItemIndex === this.list.length - 1 && this.isDrawDown) return
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} else {
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if (this.currentSlideItemIndex === this.slideItems.length - 1 && this.isDrawDown) return
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}
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this.$stopPropagation(e)
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if (Math.abs(this.moveYDistance) < 20) gapTime = 1000
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if (Math.abs(this.moveYDistance) > (this.wrapperHeight / 3)) gapTime = 100
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if (gapTime < 150) {
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if (this.isDrawDown) {
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this.currentSlideItemIndex += 1
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} else {
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this.currentSlideItemIndex -= 1
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}
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console.log(this.slideItems)
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let that = this
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if (this.virtual) {
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if (this.slideItems.length > 2) {
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if (this.isDrawDown) {
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$("#base-slide-list div:first").remove()
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$(".base-slide-item").each(function () {
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$(this).css('top', (that.currentSlideItemIndex - 1) * that.wrapperHeight)
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})
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let item = this.list[this.currentSlideItemIndex + 1]
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let s = $($(this.render(item))[0]).css('top', (this.currentSlideItemIndex - 1) * this.wrapperHeight)
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this.slideList.appendChild(s[0])
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} else {
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$("#base-slide-list div:last").remove()
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$(".base-slide-item").each(function () {
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$(this).css('top', (that.currentSlideItemIndex - 1) * that.wrapperHeight)
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})
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let item = this.list[this.currentSlideItemIndex - 1]
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let s = $($(this.render(item))[0]).css('top', (this.currentSlideItemIndex - 1) * this.wrapperHeight)
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$('#base-slide-list').prepend(s)
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}
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} else {
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let item = this.list[this.currentSlideItemIndex + 1]
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this.slideList.appendChild($(this.render(item))[0])
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}
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this.checkChildren()
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}
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this.$emit('slide', {
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currentSlideItemIndex: this.currentSlideItemIndex,
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isDrawDown: this.isDrawDown,
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isDrawRight: this.isDrawRight
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})
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}
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this.$setCss(this.slideList, 'transform', `translate3d(0px, ${-this.getHeight(this.currentSlideItemIndex)}px, 0px)`)
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}
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this.resetConfig()
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this.$attrs['onUpdate:active-index'] && this.$emit('update:active-index', this.currentSlideItemIndex)
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},
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getData() {
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this.loading = true
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setTimeout(() => {
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this.loading = false
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}, 1500)
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},
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resetConfig() {
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this.isCanDownWiping = false
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this.isCanRightWiping = false
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this.isNeedCheck = true
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this.moveXDistance = 0
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this.moveYDistance = 0
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},
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getHeight(index) {
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return this.slideItemsHeights.reduce((p, c, i) => {
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if (i < index) {
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//最后一页，如果宽度不够屏幕宽度，那不能拉完
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if (this.slideItemsHeights.length - 1 === i + 1) {
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p = p + c - (this.wrapperHeight - this.slideItemsHeights[index])
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} else {
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p += c
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}
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}
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return p
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}, 0)
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},
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checkDirection() {
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if (!this.isNeedCheck) return
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let angle = (Math.abs(this.moveXDistance) * 10) / (Math.abs(this.moveYDistance) * 10)
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if (angle < 0.6) {
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//上下划
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this.isCanDownWiping = true
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this.isCanRightWiping = false
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this.isNeedCheck = false
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return
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}
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if (angle > 5) {
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//左右划
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this.isCanDownWiping = false
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this.isCanRightWiping = true
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this.isNeedCheck = false
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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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|
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<style scoped lang="scss">
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@import "../../assets/scss/index";
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|
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#base-slide-wrapper {
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width: 100%;
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height: 100%;
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overflow: hidden;
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|
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|
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#base-slide-list {
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display: flex;
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height: 100%;
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width: 100%;
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position: relative;
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}
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.indicator-home {
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position: fixed;
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font-size: 1.6rem;
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top: 0;
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left: 0;
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height: 60px;
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z-index: 2;
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width: 100%;
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color: white;
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.notice {
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opacity: 0;
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top: 0;
|
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position: absolute;
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width: 100vw;
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height: 100%;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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.loading {
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opacity: 0;
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top: 20px;
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right: 15px;
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position: absolute;
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}
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|
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.toolbar {
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position: relative;
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color: white;
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width: 100%;
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height: 100%;
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box-sizing: border-box;
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padding: 0 15px;
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display: flex;
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justify-content: space-between;
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align-items: center;
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|
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.tab-ctn {
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width: 30%;
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position: relative;
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.tabs {
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display: flex;
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justify-content: space-between;
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font-weight: bold;
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.tab {
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transition: color .3s;
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color: gray;
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|
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&.active {
|
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color: white;
|
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}
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}
|
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}
|
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|
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|
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.indicator {
|
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//transition: left .3s;
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position: absolute;
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bottom: -8px;
|
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height: 3px;
|
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width: 20px;
|
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background: #fff;
|
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border-radius: 5px;
|
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}
|
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}
|
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}
|
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}
|
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|
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.indicator-me {
|
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top: 0;
|
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left: 0;
|
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right: 0;
|
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z-index: 999;
|
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background: $main-bg;
|
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|
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.tabs {
|
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display: flex;
|
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justify-content: space-between;
|
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font-weight: bold;
|
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|
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.tab {
|
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height: 40px;
|
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width: 33%;
|
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display: flex;
|
||
justify-content: center;
|
||
align-items: center;
|
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color: gray;
|
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transition: color .3s;
|
||
|
||
&.active {
|
||
color: white;
|
||
}
|
||
}
|
||
}
|
||
|
||
.indicator {
|
||
height: 2px;
|
||
background: gold;
|
||
width: 33%;
|
||
position: relative;
|
||
transition: all .3s;
|
||
}
|
||
}
|
||
|
||
.indicator-me.fixed {
|
||
position: fixed;
|
||
}
|
||
|
||
}
|
||
|
||
</style> |