<template>
  <!-- 自助填单页面 -->
  <div class="write-page flex flexc">
    <Header>
      <div slot="title" class="title">样表展示</div>
      <div slot="right" class="back-home flex aic" @click="handleBackHome">
        <img class="mr10" src="../../assets/img/shouye.png" />
        返回首页
      </div>
    </Header>
    <div class="main flex1 flex jcc scroll3">
      <div
        class="preview-box flex flexc aic"
        v-for="(v, i) in materailsList"
        :key="v.id"
        v-show="active === i"
      >
        <div class="short">{{ v.materialName }}</div>
        <div class="full-name">材料全称：{{ v.materiaFullName }}</div>
        <div
          class="preview-img-box flex aic jcc"
          :style="{
            width: width * (scale / 100) + 'px',
            height: v.height * (scale / 100) + 'px',
          }"
        >
          <img
            :style="{
              transform: `scale(${scale / 100})`,
              width: width + 'px',
              height: v.height + 'px',
            }"
            class="preview-img"
            :src="api + v.preViewPath"
          />
        </div>
      </div>
      <!-- 放大，缩小 -->
      <div class="control-box">
        <div class="control-btn" @click="handleEnlargement">
          <i class="el-icon-zoom-in"></i>
        </div>
        <div class="control-btn" @click="handleShrink">
          <i class="el-icon-zoom-out"></i>
        </div>
      </div>
      <!-- 侧边栏弹窗 -->
      <div class="sidebar-box" :class="{ show: !showSidebar }">
        <!-- 侧边内容 -->
        <div class="sidebar-main">
          <div class="title flex jcc aic" @click="showSidebar = false">
            <span class="mr30"> 样表展示 </span>
            <span class="icon2">
              <i class="el-icon-d-arrow-left"></i>
            </span>
          </div>
          <!-- 申请编号  -->
          <div class="apply-num tac" v-ellipsis="'340px'">
            申请编号：DX123456789
          </div>
          <!-- 事项名称 -->
          <div class="matter-name tac" v-ellipsis="'340px'">
            {{ matterInfo.matterName }}
          </div>
          <!-- 材料列表 -->
          <div class="materails-list scroll3">
            <div
              class="materails-item pdl10"
              v-ellipsis="'330px'"
              :class="{ active: i === active }"
              v-for="(v, i) in materailsList"
              :key="v.id"
              @click="active = i"
            >
              {{ v.materiaFullName }}
              <div class="line"></div>
            </div>
          </div>
        </div>

        <!-- 侧边按钮 -->
        <div
          class="sidebar-btn flex jcc aic"
          v-show="!showSidebar"
          @click="showSidebar = true"
        >
          <div class="sidebar-btn-text flex flexc aic">
            <span class="sidebar-btn-title"> 样表展示 </span>
            <span class="mt15 mb15">
              {{ active + 1 }}/{{ materailsList.length }}
            </span>
            <span class="icon1">
              <i class="el-icon-d-arrow-right"></i>
            </span>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import Header from "@/components/Header.vue";
import { getMaterialsList } from "@/api";
import local from "@/utils/local";
export default {
  components: {
    Header,
  },
  data() {
    return {
      api: local.getLocal("serverUrl") + "/",
      matterInfo: this.$route.query,
      materailsList: [],
      active: 0,
      scale: 100,
      showSidebar: false, // 切换侧边弹窗显示
      width: 800,
    };
  },
  created() {
    this.getMaterialsList();

    // this.materailsList=this.matterInfo.matterDatumList;
  },

  methods: {
    handleBackHome() {
      this.$router.push("/");
    },

    // 获取材料列表
    async getMaterialsList() {
      let res = await getMaterialsList({
        page: 1,
        size: -1,
        matterId: this.matterInfo.matterId,
      });
      let { data } = res.data.data;
      data.forEach((v) => {
        let image = new Image();
        image.src = this.api + v.preViewPath;
        image.onload = function () {
          v.height = image.height;
        };
      });
      this.materailsList = data;
      this.active = +this.$route.query.index;
    },

    // 放大
    handleEnlargement() {
      this.scale += 20;
      if (this.scale > 200) {
        this.scale = 200;
      }
    },

    // 缩小
    handleShrink() {
      if (this.scale > 100) {
        this.scale -= 20;
      } else if (this.scale <= 100) {
        this.scale = 100;
      }
    },
  },
};
</script>

<style lang="less" scoped>
.write-page {
  width: 100%;
  height: 100%;
  background-color: #f5f5f5;
  .back-home {
    font-size: 28px;
    font-family: Source Han Sans CN;
    color: #ffffff;
    cursor: pointer;
  }
}
.main {
  width: 100%;
  position: relative;
  .sidebar-box {
    width: 360px;
    min-height: 340px;
    padding: 10px;
    background: #fff;
    box-shadow: 6px -1px 10px 0px rgba(0, 0, 0, 0.11);
    border-radius: 0px 38px 8px 0px;
    position: fixed;
    top: 230px;
    left: 0px;
    z-index: 10;
    transition: all 500ms;
    .materails-list {
      max-height: 600px;
    }
    .title {
      margin-bottom: 15px;
      font-size: 22px;
      font-family: Source Han Sans CN;
      color: #333333;
      position: relative;
      i {
        font-size: 18px;
      }
    }
    .icon1 {
      width: 26px;
      height: 26px;
      background: #52a8f6;
      border-radius: 50%;
      color: var(--main-theme-color);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      i {
        font-size: 16px;
      }
    }
    .icon2 {
      display: inline-block;
      width: 34px;
      height: 34px;
      background: #f2f6fe;
      border-radius: 16px;
      text-align: center;
      line-height: 34px;
      color: var(--main-theme-color);
      position: absolute;
      right: 28px;
    }
    .apply-num {
      margin-bottom: 20px;
      font-size: 18px;
      font-family: Source Han Sans CN;
      color: #666666;
    }
    .matter-name {
      width: 186px;
      height: 38px;
      margin-bottom: 20px;
      background: #f2f6fe;
      border-radius: 4px;
      line-height: 38px;
      color: var(--main-theme-color);
    }
    .materails-item {
      height: 42px;
      line-height: 40px;
      font-size: 18px;
      font-family: Source Han Sans CN;
      color: #333333;
    }
    .line {
      height: 1px;
      width: 100%;
      background-image: linear-gradient(
        to right,
        #fff,
        #ccc 10%,
        #ccc 80%,
        #fff
      );
    }
    .active {
      color: var(--main-theme-color);
      .line {
        background-image: linear-gradient(
          to right,
          #fff,
          var(--main-theme-color) 10%,
          var(--main-theme-color) 80%,
          #fff
        );
      }
    }

    .sidebar-btn {
      width: 84px;
      height: 276px;
      background: linear-gradient(
        90deg,
        var(--main-theme-color),
        var(--main-assist-color)
      );
      box-shadow: 6px -1px 10px 0px rgba(11, 92, 233, 0.11);
      border-radius: 0px 38px 8px 0px;
      font-size: 24px;
      font-family: Source Han Sans CN;
      color: #ffffff;
      cursor: pointer;
      position: absolute;
      right: -84px;
      top: 50px;
      .sidebar-btn-title {
        writing-mode: vertical-lr;
      }
    }
  }
  .show {
    left: -360px;
  }
  .preview-box {
    width: 600px;
    padding-top: 50px;
    position: absolute;
    // .preview-img-box {
    //   margin: auto;
    // }
  }
  .short {
    font-size: 26px;
    font-family: Source Han Sans CN;
    color: var(--main-theme-color);
  }
  .full-name {
    margin-top: 10px;
    margin-bottom: 24px;
    font-size: 20px;
    font-family: Source Han Sans CN;
    color: #888888;
  }
  // .preview-img {
  // }
  // 放大控制
  .control-box {
    position: fixed;
    right: 200px;
    bottom: 36px;
    z-index: 10;
    .control-btn {
      width: 100px;
      height: 100px;
      margin-top: 40px;
      background: #ffffff;
      box-shadow: 0px 0px 24px 3px rgba(0, 0, 0, 0.07);
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      cursor: pointer;
      i {
        font-size: 54px;
        color: var(--main-theme-color);
      }
    }
  }
}
</style>