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397 lines
11 KiB
397 lines
11 KiB
<template> |
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<div id="base-slide-wrapper"> |
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<div id="base-slide-list" ref="slideList" |
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:style="{'flex-direction':'column'}" |
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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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import * as Vue from 'vue' |
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|
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export default { |
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name: "BaseSlideList", |
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props: { |
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renderSlide: { |
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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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virtual: { |
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type: Boolean, |
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default: () => false |
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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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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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data() { |
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return { |
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loading: false, |
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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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isDrawDown: true, |
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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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slideItemsHeights: [], |
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appInsMap: new Map() |
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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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// list(){ |
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// |
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// } |
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}, |
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mounted: async function () { |
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this.slideList = this.$refs.slideList |
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this.list.slice(0, 3).map((item, index) => { |
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this.slideList.appendChild(this.getInsEl(item, index)) |
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}) |
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await this.checkChildren() |
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this.changeIndex(true) |
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}, |
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methods: { |
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getInsEl(item, index) { |
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let slideVNode = this.renderSlide(item, index) |
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const app = Vue.createApp({ |
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render() { |
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return slideVNode |
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} |
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}) |
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const parent = document.createElement('div') |
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const ins = app.mount(parent) |
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this.appInsMap.set(index, app) |
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return ins.$el |
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}, |
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changeIndex(init = false, index = null) { |
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this.currentSlideItemIndex = index !== null ? index : this.activeIndex |
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!init && this.$setCss(this.slideList, 'transition-duration', `300ms`) |
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this.$setCss(this.slideList, 'transform', `translate3d(0px, ${-this.getHeight(this.currentSlideItemIndex) + this.moveYDistance}px, 0px)`) |
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this.$attrs['onUpdate:active-index'] && this.$emit('update:active-index', this.currentSlideItemIndex) |
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}, |
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checkChildren() { |
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this.slideList = this.$refs.slideList |
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this.slideItems = this.slideList.children |
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this.wrapperHeight = this.$getCss(this.slideList, 'height') |
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for (let i = 0; i < this.slideItems.length; i++) { |
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let el = this.slideItems[i] |
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this.slideItemsHeights.push(this.$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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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, ${-this.getHeight(this.currentSlideItemIndex) + this.moveYDistance}px, 0px)`) |
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} |
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}, |
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touchEnd(e) { |
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if (this.isCanDownWiping) { |
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this.$setCss(this.slideList, '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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if (this.virtual) { |
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if (this.currentSlideItemIndex === this.list.length - 1 && this.isDrawDown) return this.$attrs['onEnd'] && this.$emit('end') |
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} else { |
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if (this.currentSlideItemIndex === this.slideItems.length - 1 && this.isDrawDown) return this.$attrs['onEnd'] && this.$emit('end') |
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} |
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this.$stopPropagation(e) |
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if (Math.abs(this.moveYDistance) < 20) gapTime = 1000 |
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if (Math.abs(this.moveYDistance) > (this.wrapperHeight / 3)) gapTime = 100 |
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if (gapTime < 150) { |
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if (this.isDrawDown) { |
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this.currentSlideItemIndex += 1 |
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} else { |
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this.currentSlideItemIndex -= 1 |
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} |
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// console.log(this.slideItems.length) |
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let that = this |
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if (this.virtual) { |
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if (this.slideItems.length > 4) { |
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if (this.isDrawDown) { |
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if (this.currentSlideItemIndex > 2) { |
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let item = this.list[this.currentSlideItemIndex + 2] |
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this.slideList.appendChild($(this.getInsEl(item, this.currentSlideItemIndex + 2))[0]) |
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// this.appInsMap.get($("#base-slide-list .base-slide-item:first").data('index')).unmount() |
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$("#base-slide-list .base-slide-item:first").remove() |
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$(".base-slide-item").each(function () { |
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$(this).css('top', (that.currentSlideItemIndex - 2) * that.wrapperHeight) |
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}) |
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} |
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} else { |
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if (this.currentSlideItemIndex > 1) { |
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let item = this.list[this.currentSlideItemIndex - 2] |
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this.slideList.prepend($(this.getInsEl(item, this.currentSlideItemIndex - 2))[0]) |
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// this.appInsMap.get($("#base-slide-list .base-slide-item:last").data('index')).unmount() |
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$("#base-slide-list .base-slide-item:last").remove() |
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$(".base-slide-item").each(function () { |
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$(this).css('top', (that.currentSlideItemIndex - 2) * that.wrapperHeight) |
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}) |
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} |
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} |
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} else { |
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if (this.isDrawDown) { |
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// let res = $(`#base-slide-list .base-slide-item[data-index=${this.currentSlideItemIndex + 2}]`) |
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// console.log(res) |
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let item = this.list[this.currentSlideItemIndex + 2] |
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this.slideList.appendChild(this.getInsEl(item, this.currentSlideItemIndex + 2)) |
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} |
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} |
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this.checkChildren() |
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} |
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} |
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this.$setCss(this.slideList, 'transform', `translate3d(0px, ${-this.getHeight(this.currentSlideItemIndex)}px, 0px)`) |
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this.$attrs['onUpdate:active-index'] && this.$emit('update:active-index', this.currentSlideItemIndex) |
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} |
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this.resetConfig() |
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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.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.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.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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<style scoped lang="scss"> |
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@import "../../assets/scss/index"; |
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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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#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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.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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.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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&.active { |
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color: white; |
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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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.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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.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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height: 40px; |
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width: 33%; |
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display: flex; |
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justify-content: center; |
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align-items: center; |
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color: gray; |
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transition: color .3s; |
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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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.indicator { |
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height: 2px; |
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background: gold; |
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width: 33%; |
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position: relative; |
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transition: all .3s; |
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} |
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} |
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.indicator-me.fixed { |
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position: fixed; |
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} |
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} |
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</style> |