fe-manage/src/views/gratefulteacher/QrCode.vue

<template>
    <a-modal
      :visible="true"
      :footer="null"
      :title="null"
      :centere="true"
      :closable="false"
      style="margin-top: 400px"
      :zIndex="9999"
      @cancel="close"
    >
      <div id="qrcode" class="QR">
        <div class="qr_header"></div>
        <div class="qr_main">
          <div class="qrm_header">
       
            <span>{{ title }}</span>
            <div class="close_exit" @click="close"></div>
          </div>
          <div class="downloadCode" style="">
            <div class="qrm_body">
              <div class="qrm_body_info" style="    text-align: center;
    display: flex;
    align-self: center;
    flex-wrap: wrap;
    flex-direction: column-reverse;
    align-content: center;
    justify-content: center;
    margin-bottom: 10px;
    ">
        
            <div  class="codename" :title="name">{{ name }}</div>
                
              
              </div>
              <QrcodeVue :value="url" :size="size" style="width: 200px; height: 200px"></QrcodeVue>
            </div>
          </div>
          <div v-if="copyAble" class="codeUrl" :style="{ display: 'flex'}">
            <div class="codeUrlLink">链接</div>
            <a-input :value="url" disabled class="codeUrlInp"/>
            <a-input
              :value="url"
              id="courseUrl"
              class="codeUrlInp"
              style="position: absolute; opacity: 0; z-index: -1"
            />
            <div @click="copyUrl" class="codeUrlCopy">复制链接</div>
          </div>
          <div class="qrm_footer">
              <span style="color: #387df7; cursor: pointer" @click="download(200)">下载二维码</span>
          </div>
        </div>
      </div>
    </a-modal>
  </template>
  <script setup>
  import {defineProps, onMounted} from "vue";
  import html2canvas from "html2canvas";
  import QrcodeVue from "qrcode.vue";
  import {message} from "ant-design-vue";
  
  const props = defineProps({
    close: {
      type: Function,
      default: () => ({})
    },
    ok: {
      type: Function,
      default: () => ({})
    },
    url: String,
    copyAble: {
      type: Boolean,
      default: false
    },
    size: {
      type: Number,
      default: 800
    },
    name: String,
    createName: String,
    courseName: String,
    title: {
      type: String,
      default: "二维码"
    },
    cancel: {
      type: Boolean,
      default: true
    },
    duration: {
      type: Number,
      default: 0
    },
  });
  
  onMounted(() => props.duration && setTimeout(() => props.close(), props.duration));
  
  function download() {
    html2canvas(
      document.querySelector(".downloadCode"),
      { useCORS: true,
        allowTaint: true,
        logging: true,
      }
    ).then((canvas) => {
      let a = document.createElement("a");
      a.style.display = "none";
      a.download = `${new Date().getTime()}.png`;
      a.href = canvas.toDataURL("image/png");
      document.body.appendChild(a);
      a.click();
    }).catch((err) => console.log('html2canvas',err));
  }
  
  function copyUrl() {
    const input = document.createElement("input"); // 创建input对象
    input.value = props.url;
    document.body.appendChild(input); // 添加临时实例
    input.select(); // 选择实例内容
    document.execCommand("Copy"); // 执行复制
    document.body.removeChild(input); // 删除临时实例
    message.success("复制成功！");
  }
  </script>
  <style lang="scss" scoped>
  .QR {
    z-index: 9999;
    width: 520px;
    background: #ffffff;
    box-shadow: 0px 1px 35px 0px rgba(118, 136, 166, 0.21);
    position: absolute;
    left: 50%;
    top: 10%;
    transform: translate(-50%, -50%);
  
    .qr_header {
      position: absolute;
      width: calc(100%);
      height: 40px;
      background: linear-gradient(
          rgba(78, 166, 255, 0.2) 0%,
          rgba(78, 166, 255, 0) 100%
      );
    }
  
    .qr_main {
      width: 100%;
      position: relative;
  
      .qrm_header {
        display: flex;
        align-items: center;
        padding-top: 20px;
        padding-left: 26px;
        font-size: 16px;
  
        .title {
          font-size: 16px;
          font-weight: 600;
          color: #333333;
          line-height: 22px;
        }
  
        .close_exit {
          position: absolute;
          right: 42px;
          cursor: pointer;
          width: 20px;
          height: 20px;
          background-image: url(@/assets/images/coursewareManage/close.png);
          background-size: 100% 100%;
        }
      }
  
      .qrm_body {
        width: 100%;
        padding-top: 22px;
        padding-bottom: 32px;
        display: flex;
        flex-direction: column;
        align-items: center;
        .qrm_body_info{
          width: 100%;
       
        }
        .codename {
          font-size: 18px;
          font-weight: 400;
          color: #333333;
          line-height: 25px;
          margin-bottom: 5px;
          margin-left: 20px;
          margin-right: 20px;
          text-align: left;
          overflow: hidden;
          white-space: nowrap;
          text-overflow: ellipsis;
          max-width: 300px;
        }
        // .codename:hover{
        //   overflow: visible;
        // }
      }
  
      .codeUrl {
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 24px;
  
        .codeUrlLink {
          width: 72px;
          height: 40px;
          display: flex;
          align-items: center;
          justify-content: center;
          font-size: 14px;
          font-weight: 400;
          color: #c7cbd2;
          line-height: 20px;
          border: 1px solid #c7cbd2;
          border-right: 0px solid #c7cbd2;
        }
  
        .codeUrlInp {
          width: 305px;
          height: 40px;
          border: 1px solid #c7cbd2;
        }
  
        .ant-input-disabled {
          background-color: rgba(0, 0, 0, 0) !important;
        }
  
        .ant-input[disabled] {
          background-color: rgba(0, 0, 0, 0) !important;
        }
  
        .codeUrlCopy {
          width: 96px;
          height: 40px;
          background-color: #4ea6ff;
          border-radius: 8px;
          display: flex;
          align-items: center;
          justify-content: center;
          font-size: 14px;
          font-weight: 400;
          color: #ffffff;
          line-height: 20px;
          cursor: pointer;
          margin-left: 8px;
        }
      }
  
      .qrm_footer {
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 44px;
  
        .qrmbtn {
          width: 80px;
          height: 32px;
          display: flex;
          line-height: 32px;
          justify-content: center;
          border-radius: 4px;
          border: 1px solid #387df7;
          cursor: pointer;
  
          .btntext {
            color: #387df7;
          }
        }
      }
    }
  }
  
  .codeModal {
    .ant-modal {
      .ant-modal-content {
        width: 479px !important;
      }
    }
  }
  </style>
  <style lang="scss">
  .ant-modal-body {
    padding: 0 !important;
  }
  
  </style>