<template>
  <div class="cropper">
    <div>
      <el-upload
        class="avatar-uploader"
        action="#"
        accept="image/*"
        :show-file-list="false"
        @click.native.prevent="editCropper()"
      >
        <el-image v-if="picInfo" :src="baseUrl + picInfo" class="avatar"/>
        <i v-else class="el-icon-plus avatar-uploader-icon"></i>
      </el-upload>
      <el-dialog :title="title"
                 :visible.sync="open"
                 width="800px"
                 append-to-body
                 @opened="modalOpened"
                 @close="closeDialog">
        <el-row>
          <el-col :xs="24" :md="12" :style="{height: '350px'}">
            <vue-cropper
              ref="cropper"
              :img="options.img"
              :info="true"
              :autoCrop="options.autoCrop"
              :autoCropWidth="options.autoCropWidth"
              :autoCropHeight="options.autoCropHeight"
              :fixedBox="options.fixedBox"
              @realTime="realTime"
              v-if="visible"
            />
          </el-col>
          <el-col :xs="24" :md="12" :style="{height: '350px'}">
            <div class="avatar-upload-preview">
              <img :src="previews.url" :style="previews.img"/>
            </div>
          </el-col>
        </el-row>
        <br/>
        <el-row>
          <el-col :lg="2" :md="2">
            <el-upload action="#" :http-request="requestUpload" :show-file-list="false" :before-upload="beforeUpload">
              <el-button size="small">
                选择
                <i class="el-icon-upload el-icon--right"></i>
              </el-button>
            </el-upload>
          </el-col>
          <el-col :lg="{span: 1, offset: 2}" :md="2">
            <el-button icon="el-icon-plus" size="small" @click="changeScale(1)"></el-button>
          </el-col>
          <el-col :lg="{span: 1, offset: 1}" :md="2">
            <el-button icon="el-icon-minus" size="small" @click="changeScale(-1)"></el-button>
          </el-col>
          <el-col :lg="{span: 1, offset: 1}" :md="2">
            <el-button icon="el-icon-refresh-left" size="small" @click="rotateLeft()"></el-button>
          </el-col>
          <el-col :lg="{span: 1, offset: 1}" :md="2">
            <el-button icon="el-icon-refresh-right" size="small" @click="rotateRight()"></el-button>
          </el-col>
          <el-col :lg="{span: 2, offset: 6}" :md="2">
            <el-button type="primary" size="small" @click="uploadImg()">提 交</el-button>
          </el-col>
        </el-row>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import {VueCropper} from "vue-cropper";
import {uploadImage as commonUpload} from "@/api/common";

export default {
  name: "picAvatar",
  components: {VueCropper},
  props: ['picInfo'],
  computed: {
    // picInfoCopy: {
    //   get() {
    //     return this.picInfo
    //   },
    //   set() {
    //     // this.picInfoCopy = res
    //   }
    //
    // }
  },

  data() {
    return {
      // picInfoCopy: this.picInfo,
      baseUrl: [process.env.VUE_APP_BASE_API],
      //是否上传了图片
      isUploadPic: false,
      //院徽
      gardenEmblem: {},
      //存储传给父组件的图片
      schoolInfoPic: {},
      // 是否显示弹出层
      open: false,
      // 是否显示cropper
      visible: false,
      // 弹出层标题
      title: "修改头像",
      options: {
        img: this.picInfo, //裁剪图片的地址
        autoCrop: true, // 是否默认生成截图框
        autoCropWidth: 200, // 默认生成截图框宽度
        autoCropHeight: 200, // 默认生成截图框高度
        fixedBox: true // 固定截图框大小 不允许改变
      },
      previews: {}
    };
  },
  methods: {
    // 编辑头像
    editCropper() {
      this.open = true;
      this.$set(this.options, 'img', this.picInfo)
    },
    // 打开弹出层结束时的回调
    modalOpened() {
      this.visible = true;
    },
    // 覆盖默认的上传行为
    requestUpload() {
    },
    // 向左旋转
    rotateLeft() {
      this.$refs.cropper.rotateLeft();
    },
    // 向右旋转
    rotateRight() {
      this.$refs.cropper.rotateRight();
    },
    // 图片缩放
    changeScale(num) {
      num = num || 1;
      this.$refs.cropper.changeScale(num);
    },
    // 上传预处理
    beforeUpload(file) {
      if (file.type.indexOf("image/") == -1) {
        this.$modal.msgError("文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。");
      } else {
        console.log(file, 135)
        // this.picInfoCopy = file
        const reader = new FileReader();
        reader.readAsDataURL(file);
        reader.onload = () => {
          this.options.img = reader.result;
        };
        // console.log('上传预处理',file)
      }
    },
    // 上传图片
    uploadImg() {
      // let fileName = ''
      // if (this.picInfo.picName) {
      //   fileName = this.picInfo.picName
      // }

      this.$refs.cropper.getCropBlob(data => {
        // let file = new window.File([data], fileName, {  //将blob转为png图像
        //   type: "image/png",
        // });
        let formData = new FormData();
        formData.append("file", data);
        commonUpload(formData).then(response => {
          this.open = false;
          this.options.img = response.url;
          this.$emit('update:pic-info', response.url)
          // this.picInfoCopy = response.url
          this.$modal.msgSuccess("修改成功");
          this.visible = false;
          this.isUploadPic = true

        });
      });
    },
    // 实时预览
    realTime(data) {
      this.previews = data;
    },
    // 关闭窗口
    closeDialog() {
      // this.options.img = this.picInfoCopy
      this.visible = false;
    }
  }
};
</script>

<style scoped lang="scss">
.user-info-head {
  position: relative;
  display: inline-block;
  height: 120px;
}

.user-info-head:hover:after {
  content: '+';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  color: #eee;
  background: rgba(0, 0, 0, 0.5);
  font-size: 30px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: pointer;
  line-height: 110px;
  border-radius: 50%;
}

</style>
<style>
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.avatar-uploader .el-upload:hover {
  border-color: #409EFF;
}

.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  line-height: 178px;
  text-align: center;
}

.avatar {
  width: 178px;
  height: 178px;
  display: block;
}
</style>
