vue仿京东放大镜加商品缩略图轮播组件

淡淡的烟草味﹌ 2021-09-24 11:10 538阅读 0赞

> 以下是最终的vue版本,光滑流畅,99%还原京东放大镜甚至更好,不会出现多次操作会变卡的问题

## 1.vue版本 ##

6/23日更新，处理图片尺寸过小无法通过拖动实现放大移动效果的问题

7/18日更新,关于视频处理,不需要引入视频的小伙伴可以注释掉代码中关于视频插件的部分

//安装 视频插件
    npm install vue-video-player
    
    
    //main.js全局注册
    import VideoPlayer from 'vue-video-player'
    import 'video.js/dist/video-js.css'
    Vue.use(VideoPlayer)

<template>
      <div id="magnifier" class="preview">
        <div
          class="small-box"
          @mouseover="smallBoxOver"
          @mousemove="smallBoxMove($event)"
          @mouseleave="smallLeave"
        >
          <VideoPlayer v-if="isShowVideo" class="videoPlayer" :video="videoObj"></VideoPlayer>
          <img :src="theImg" v-else />
          <span class="hover"></span>
        </div>
        <div class="thumbnail-box">
          <a class="btn btn-prev" @click="prev"></a>
          <a class="btn btn-next" @click="next"></a>
    
          <div class="list">
            <ul class="wrapper">
              <li
                class="item"
                v-for="(item, index) in pictureList"
                :key="index"
                @mouseover="chooseImg(item,index)"
                @mouseleave="leaveImg(index)"
                :class="activeIndex===index?'item-cur':''"
              >
                <img :src="item" />
              </li>
            </ul>
          </div>
        </div>
        <div class="big-box">
          <img :src="theImg" />
        </div>
      </div>
    </template>
    
    <script>
    import $ from 'jquery'
    import 'jquery'
    import VideoPlayer from '@/components/video/video'
    // import VideoPlayer from '@/components/video/simpleVideo'
    
    export default {
      data() {
        return {
          theImg: '', // 当前选中的图片
          activeIndex: 0,
          isShowVideo: false,
          goodVideo: '',
          videoObj: {
            type: 'video/mp4',
            src: require('../../assets/video/jabil.mp4')
          },
          pictureList: [
            'http://mp.ofweek.com/Upload/News/Img/member645/201711/17170046839337.jpg',
    
            'http://image.buy.ccb.com/merchant/201703/904919627/1522929521661_4.jpg',
    
            'http://image5.suning.cn/uimg/b2c/newcatentries/0070130691-000000000826244625_5_800x800.jpg',
    
            'http://img12.360buyimg.com/n5/s450x450_jfs/t9952/98/2269407420/279171/6137fe2f/59f28b2bN6959e086.jpg',
    
            'http://d.ifengimg.com/w600/p0.ifengimg.com/pmop/2017/1213/A4037864F6728F006B67AAEC51EC8A485F320FD2_size93_w1024_h734.jpeg',
    
            'http://d.ifengimg.com/w600/p0.ifengimg.com/pmop/2017/1213/A4037864F6728F006B67AAEC51EC8A485F320FD2_size93_w1024_h734.jpeg'
          ],
          $elem: '',
          $smallBox: '',
          $smallBox_pic: '',
          $smallBox_mask: '',
          $thumbnailBox: '',
          $thumbnailBox_prev: '',
          $thumbnailBox_next: '',
          $thumbnailBox_wrapper: '',
          $thumbnailBox_item: '',
          $thumbnailBox_pic: '',
          $bigBox: '',
          $bigBox_pic: ''
        }
      },
      components: {
        VideoPlayer
      },
      props: {
        imageArr: {
          type: [Array, Object],
          default: () => []
        }
      },
      created() {
        this.theImg = this.imageArr[0]
      },
      mounted() {
        this.initPreview()
      },
      methods: {
        playVideo() {
          this.isShowVideo = true
        },
        initPreview() {
          this.$elem = $('#magnifier')
          this.$smallBox = this.$elem.find('.small-box')
          this.$smallBox_pic = this.$smallBox.find('img')
          this.$smallBox_mask = this.$smallBox.find('.hover')
          this.$thumbnailBox = this.$elem.find('.thumbnail-box')
          this.$thumbnailBox_prev = this.$thumbnailBox.find('.btn-prev')
          this.$thumbnailBox_next = this.$thumbnailBox.find('.btn-next')
          this.$thumbnailBox_wrapper = this.$thumbnailBox.find('.wrapper')
          this.$thumbnailBox_item = this.$thumbnailBox.find('.item')
          this.$thumbnailBox_pic = this.$thumbnailBox.find('img')
          this.$bigBox = this.$elem.find('.big-box')
          this.$bigBox_pic = this.$bigBox.find('img')
        },
        moveBigPic() {
          // 改变大图
          let scaleX =
            this.$smallBox_mask.position().left /
            (this.$smallBox.width() - this.$smallBox_mask.width())
          let scaleY =
            this.$smallBox_mask.position().top /
            (this.$smallBox.height() - this.$smallBox_mask.height())
          let scroll_l = scaleX * (this.$bigBox_pic.width() - this.$bigBox.width())
          let scroll_t =
            scaleY * (this.$bigBox_pic.height() - this.$bigBox.height())
          this.$bigBox.stop(true)
          this.$bigBox.scrollLeft(scroll_l).scrollTop(scroll_t)
        },
        setMask() {
          // 设置 mask 宽高
          //   let mask_w =
          //     this.$smallBox.width() /
          //     (this.$bigBox_pic.width() / this.$bigBox.width()) /
          //     2.5
          //   let mask_h =
          //     this.$smallBox.height() /
          //     (this.$bigBox_pic.height() / this.$bigBox.height()) /
          //     2.5
          //   //   this.$smallBox_mask.stop(true)
          //   this.$smallBox_mask.css({ width: mask_w, height: mask_h })
          //   this.$smallBox_mask.css({ height: '121.5px', width: '121.5px' })
        },
        smallBoxOver() {
          this.$bigBox.show()
          this.$smallBox_mask.show()
          this.setMask()
          this.$smallBox.stop(true)
        },
        smallBoxMove(ev) {
          //   console.log('ev.clientX', ev.clientX)
          let oEvent = ev || window.event
          let offset_pos = {
            left:
              oEvent.clientX -
              this.$smallBox.offset().left -
              this.$smallBox_mask.width() / 2,
            top:
              oEvent.clientY -
              this.$smallBox.offset().top -
              this.$smallBox_mask.height() / 2 +
              $(window).scrollTop()
          }
          if (offset_pos.left < 0) {
            offset_pos.left = 0
          } else if (
            offset_pos.left >
            this.$smallBox.width() - this.$smallBox_mask.width()
          ) {
            offset_pos.left = this.$smallBox.width() - this.$smallBox_mask.width()
          }
          if (offset_pos.top < 0) {
            offset_pos.top = 0
          } else if (
            offset_pos.top >
            this.$smallBox.height() - this.$smallBox_mask.height()
          ) {
            offset_pos.top = this.$smallBox.height() - this.$smallBox_mask.height()
          }
    
          this.$smallBox_mask.css(offset_pos)
          //   this.$smallBox_mask.css({ height: '121.5px', width: '121.5px' })
    
          this.moveBigPic()
        },
        smallLeave() {
          this.$smallBox_mask.hide()
          this.$bigBox.hide()
        },
        prev() {
          this.$thumbnailBox_wrapper.animate({ marginLeft: 0 })
        },
        next() {
          let ov_pic = this.$thumbnailBox_item.length - 5
          let ov_dis = ov_pic * 78
          this.$thumbnailBox_wrapper.stop(true)
          if (ov_pic > 0) {
            this.$thumbnailBox_wrapper.animate({ marginLeft: -ov_dis })
          }
        },
        leaveImg(index) {},
        chooseImg(item, index) {
          this.theImg = item
          this.activeIndex = index
        }
      }
    }
    </script>
    
    <style lang="less" scoped>
    /deep/ .vjs_video_3-dimensions.vjs-fluid {
      padding-top: 100% !important;
    }
    .videoPlayer {
      height: 100%;
      width: 100%;
    }
    
    .thumbnail-box {
      position: relative;
      width: 100%;
      height: 62px;
      .btn-prev {
        left: 0;
        background: url(../../assets/img/fjd/images/btn_prev.png) no-repeat;
      }
      .btn-next {
        right: 0;
        background: url(../../assets/img/fjd/images/btn_next.png) no-repeat;
      }
      .btn {
        position: absolute;
        top: 50%;
        width: 22px;
        height: 32px;
        margin-top: -16px;
      }
      .list {
        overflow: hidden;
        width: 390px;
        margin: 0 auto;
        height: 58px;
      }
      .wrapper {
        width: 100000px;
      }
      .list .item {
        float: left;
        margin: 0 11.9px;
        img {
          border: 2px solid #fff;
          height: 50px;
          width: 50px;
        }
      }
    
      .list .item-cur img {
        border: 2px solid #e53e41;
      }
    }
    
    ul,
    li {
      list-style: none;
    }
    #magnifier {
      position: relative;
      width: 450px;
    }
    .small-box {
      position: relative;
      width: 450px;
      height: 450px;
      margin-bottom: 20px;
      border: 1px solid #eee;
      img {
        display: block;
        object-fit: fill;
        width: 100%;
        height: 100%;
      }
      .hover {
        display: none;
        position: absolute;
        left: 0;
        top: 0;
        width: 125px;
        height: 125px;
        border: 1px solid #aaa;
        background: #0099ff;
        opacity: 0.5;
        cursor: move;
      }
    }
    
    .big-box {
      display: none;
      overflow: hidden;
      position: absolute;
      left: 451px;
      top: 0;
      width: 540px;
      height: 540px;
      border: 1px solid #e4e4e4;
      z-index: 999;
      img {
        display: block;
        height: 128%;
      }
    }
    
    .preview {
      .preview-btn {
        position: absolute;
        z-index: 5;
        bottom: 62px;
        left: 0;
        width: 100%;
        display: -webkit-box;
        display: -webkit-flex;
        display: -ms-flexbox;
        display: flex;
        justify-content: center;
        text-align: center;
        li {
          display: inline-block;
          margin: 0 5px;
          vertical-align: text-top;
        }
        .video-icon {
          cursor: pointer;
          display: inline-block;
          z-index: 999;
          width: 50px;
          height: 50px;
          background: url(//static.360buyimg.com/item/unite/1.0.101/components/default/preview/i/main-circles.png)
            0 -55px no-repeat;
        }
        .video-icon:hover {
          background: url(//static.360buyimg.com/item/unite/1.0.101/components/default/preview/i/main-circles.png) -55px -55px
            no-repeat;
        }
      }
    }
    </style>

## 2. JQ版本 ##

<template>
      <div id="magnifier">
        
        <div class="small-box">
          <img :src="theImg" />
          <span class="hover"></span>
        </div>
        <div class="thumbnail-box">
          
          <a href="javascript:;" class="btn btn-prev"></a>
          <a href="javascript:;" class="btn btn-next"></a>
          <div class="list">
            <ul class="wrapper">
              <li
                class="item"
                v-for="(item, index) in pictureList"
                :key="index"
                @mouseenter="chooseImg(item)"
              >
                <img :src="item.url" />
              </li>
            </ul>
          </div>
        </div>
    
        
        <div class="carousel" style="display:none;">
          
          <div class="left_arrow arrow" @click="leftArrowClick"></div>
          
          <div class="show_box">
            <ul class="picture_container" ref="middlePicture">
              <li
                class="picture_item"
                @mouseover="tabPicture(item)"
                v-for="(item, index) in pictureList"
                :key="index"
              >
                <img :src="item.url" class="small_img" alt />
              </li>
            </ul>
          </div>
          
          <div class="right_arrow arrow" @click="rightArrowClick"></div>
        </div>
        <div class="big-box">
          <img :src="theImg" />
        </div>
      </div>
    </template>
    
    <script>
    import $ from 'jquery'
    import jQuery from 'jquery'
    import 'jquery'
    import '../ProductPreview/fjd/magnifier'
    
    export default {
      data() {
        return {
          theImg: '', // 当前选中的图片
          pictureList: [
            {
              url:
                'http://mp.ofweek.com/Upload/News/Img/member645/201711/17170046839337.jpg'
            },
            {
              url:
                'http://image.buy.ccb.com/merchant/201703/904919627/1522929521661_4.jpg'
            },
            {
              url:
                'http://image5.suning.cn/uimg/b2c/newcatentries/0070130691-000000000826244625_5_800x800.jpg'
            },
            {
              url:
                'http://img12.360buyimg.com/n5/s450x450_jfs/t9952/98/2269407420/279171/6137fe2f/59f28b2bN6959e086.jpg'
            },
            {
              url:
                'http://d.ifengimg.com/w600/p0.ifengimg.com/pmop/2017/1213/A4037864F6728F006B67AAEC51EC8A485F320FD2_size93_w1024_h734.jpeg'
            },
            {
              url:
                'http://d.ifengimg.com/w600/p0.ifengimg.com/pmop/2017/1213/A4037864F6728F006B67AAEC51EC8A485F320FD2_size93_w1024_h734.jpeg'
            }
          ]
          // $elem: '',
          // $smallBox: '',
          // $smallBox_pic: '',
          // $smallBox_mask: '',
          // $thumbnailBox: '',
          // $thumbnailBox_prev: '',
          // $thumbnailBox_next: '',
          // $thumbnailBox_wrapper: '',
          // $thumbnailBox_item: '',
          // $thumbnailBox_pic: '',
          // $bigBox: '',
          // $bigBox_pic: ''
        }
      },
      created() {
        this.theImg = this.pictureList[0].url
      },
      mounted() {},
      methods: {
        chooseImg(item) {
          this.theImg = item.url
        },
        // 切换图片
        tabPicture(item) {
          this.middleImg = item.url
        },
        // 点击左边箭头
        leftArrowClick() {
          if (this.middleLeft < 0) {
            // 每次向右平移一个图片盒子的宽度
            this.middleLeft += this.itemWidth
            $('.picture_container').animate(
              {
                left: this.middleLeft
              },
              500
            )
          }
        },
        // 点击右边箭头
        rightArrowClick() {
          // 每次向左平移一个盒子的宽度,最多移动的宽度为(图片数组长度-4)*每张缩略图的宽度
          if (this.middleLeft > -this.itemWidth * (this.pictureList.length - 4)) {
            this.middleLeft -= this.itemWidth
            $('.picture_container').animate(
              {
                left: this.middleLeft
              },
              500
            )
          }
          console.log(this.middleLeft)
        }
      }
    }
    </script>
    
    <style lang="less" scoped>
    .thumbnail-box .btn-prev {
      left: 0;
      background: url(../../assets/img/fjd/images/btn_prev.png) no-repeat;
    }
    .thumbnail-box .btn-next {
      right: 0;
      background: url(../../assets/img/fjd/images/btn_next.png) no-repeat;
    }
    
    ul,
    li {
      list-style: none;
    }
    
    #magnifier {
      position: relative;
      width: 450px;
    }
    .small-box {
      position: relative;
      width: 450px;
      height: 450px;
      margin-bottom: 20px;
      border: 1px solid #eee;
    }
    .small-box img {
      display: block;
      object-fit: fill;
      width: 100%;
      height: 100%;
    }
    .small-box .hover {
      display: none;
      position: absolute;
      left: 0;
      top: 0;
      width: 200px;
      height: 200px;
      border: 1px solid #aaa;
      background: #0099ff;
      opacity: 0.5;
      cursor: move;
    }
    .thumbnail-box {
      position: relative;
      width: 100%;
      height: 62px;
    }
    .thumbnail-box .btn {
      position: absolute;
      top: 50%;
      width: 22px;
      height: 32px;
      margin-top: -16px;
    }
    
    .thumbnail-box .list {
      overflow: hidden;
      width: 390px;
      margin: 0 auto;
      height: 58px;
    }
    .thumbnail-box .wrapper {
      width: 100000px;
    }
    .thumbnail-box .list .item {
      float: left;
      margin: 0 11.9px;
    }
    .thumbnail-box .list .item-cur {
    }
    .thumbnail-box .list .item img {
      border: 2px solid #fff;
      height: 50px;
      width: 50px;
    }
    .thumbnail-box .list .item-cur img {
      border: 2px solid #e53e41;
    }
    .big-box {
      display: none;
      overflow: hidden;
      position: absolute;
      left: 451px;
      top: 0;
      width: 540px;
      height: 540px;
      border: 1px solid #e4e4e4;
      z-index: 999;
    }
    .big-box img {
      display: block;
    }
    </style>

## magnifier.js  ##

import jQuery from 'jquery'
    import $ from 'jquery'
    $(function() {
      $('#magnifier').magnifier()
    })
    ;(function($, window, document, undefined) {
      let Magnifier = function(elem) {
        const self = this
        this.$elem = elem
        this.$smallBox = this.$elem.find('.small-box')
        this.$smallBox_pic = this.$smallBox.find('img')
        this.$smallBox_mask = this.$smallBox.find('.hover')
        this.$thumbnailBox = this.$elem.find('.thumbnail-box')
        this.$thumbnailBox_prev = this.$thumbnailBox.find('.btn-prev')
        this.$thumbnailBox_next = this.$thumbnailBox.find('.btn-next')
        this.$thumbnailBox_wrapper = this.$thumbnailBox.find('.wrapper')
        this.$thumbnailBox_item = this.$thumbnailBox.find('.item')
        this.$thumbnailBox_pic = this.$thumbnailBox.find('img')
        this.$bigBox = this.$elem.find('.big-box')
        this.$bigBox_pic = this.$bigBox.find('img')
      }
    
      Magnifier.prototype = {
        moveBigPic: function() {
          // 改变大图
          let scaleX =
            this.$smallBox_mask.position().left /
            (this.$smallBox.width() - this.$smallBox_mask.width())
          let scaleY =
            this.$smallBox_mask.position().top /
            (this.$smallBox.height() - this.$smallBox_mask.height())
          let scroll_l = scaleX * (this.$bigBox_pic.width() - this.$bigBox.width())
          let scroll_t =
            scaleY * (this.$bigBox_pic.height() - this.$bigBox.height())
          this.$bigBox.stop(true)
          this.$bigBox.scrollLeft(scroll_l).scrollTop(scroll_t)
        },
    
        // changeSrouce: function(index, cur_src) {
        //   // 改变大小图地址
        //   this.$smallBox_pic.attr('src', cur_src)
        //   this.$bigBox_pic.attr('src', 'images/big_' + (index + 1) + '.jpg')
        // },
        changeSrouce: function(index, cur_src) {
          // 改变大小图地址
          // this.$smallBox_pic.attr('src', cur_src)
          // this.$bigBox_pic.attr('src', cur_src)
        },
    
        setMask: function() {
          // 设置 mask 宽高
          let mask_w =
            this.$smallBox.width() /
            (this.$bigBox_pic.width() / this.$bigBox.width()) /
            2.5
          let mask_h =
            this.$smallBox.height() /
            (this.$bigBox_pic.height() / this.$bigBox.height()) /
            2.5
          this.$smallBox_mask.stop(true)
          this.$smallBox_mask.css({ width: mask_w, height: mask_h })
        },
    
        inital: function() {
          // 初始化
          const self = this
    
          this.$thumbnailBox_next.click(function() {
            let ov_pic = self.$thumbnailBox_item.length - 5
            let ov_dis = ov_pic * 78
            self.$thumbnailBox_wrapper.stop(true)
    
            if (ov_pic > 0) {
              self.$thumbnailBox_wrapper.animate({ marginLeft: -ov_dis })
            }
          })
    
          this.$thumbnailBox_prev.click(function() {
            // self.$thumbnailBox_wrapper.stop(true)
            self.$thumbnailBox_wrapper.animate({ marginLeft: 0 })
          })
    
          this.$thumbnailBox_item.mouseover(function() {
            let cur_src = $(this).attr('data-src')
    
            self.$thumbnailBox_item.removeClass('item-cur')
    
            $(this).addClass('item-cur')
    
            // self.changeSrouce($(this).index(), cur_src)
          })
    
          this.$smallBox.hover(
            function() {
              self.$bigBox.show()
              self.$smallBox_mask.show()
              self.setMask()
              $(this).stop(true)
              $(this).mousemove(function(ev) {
                let oEvent = ev || window.event
                let offset_pos = {
                  left:
                    oEvent.clientX -
                    $(this).offset().left -
                    self.$smallBox_mask.width() / 2,
                  top:
                    oEvent.clientY -
                    $(this).offset().top -
                    self.$smallBox_mask.height() / 2 +
                    $(window).scrollTop(),
                }
    
                if (offset_pos.left < 0) {
                  offset_pos.left = 0
                } else if (
                  offset_pos.left >
                  $(this).width() - self.$smallBox_mask.width()
                ) {
                  offset_pos.left = $(this).width() - self.$smallBox_mask.width()
                }
                if (offset_pos.top < 0) {
                  offset_pos.top = 0
                } else if (
                  offset_pos.top >
                  $(this).height() - self.$smallBox_mask.height()
                ) {
                  offset_pos.top = $(this).height() - self.$smallBox_mask.height()
                }
    
                self.$smallBox_mask.css(offset_pos)
    
                self.moveBigPic()
              })
            },
            function() {
              self.$smallBox_mask.hide()
              self.$bigBox.hide()
            }
          )
        },
    
        constructor: Magnifier,
      }
    
      $.fn.magnifier = function() {
        var magnifier = new Magnifier(this)
    
        return magnifier.inital()
      }
    })(jQuery, window, document)

## 原html插件,纯jq,学习用 ##

链接：https://pan.baidu.com/s/16hEc-VtP--p_nZOdsMwi8w 
    提取码：ex37