game_event_admin/src/components/ImageOrUrlInput/index.vue

<template>
  <div class="image-or-url-input">
    <el-tabs v-model="activeTab" type="card" @tab-click="handleTabClick">
      <el-tab-pane label="上传图片" name="upload">
        <div class="upload-container">
          <el-upload
            ref="imageUploadRef"
            :action="uploadImgUrl"
            list-type="picture-card"
            :on-success="handleUploadSuccess"
            :before-upload="handleBeforeUpload"
            :limit="1"
            :accept="fileAccept"
            :on-error="handleUploadError"
            :on-exceed="handleExceed"
            :before-remove="handleDelete"
            :show-file-list="true"
            :headers="headers"
            :file-list="fileList"
            :on-preview="handlePictureCardPreview"
            :class="{ hide: fileList.length >= 1 }"
          >
            <el-icon class="avatar-uploader-icon">
              <plus />
            </el-icon>
          </el-upload>
          <div v-if="showTip" class="el-upload__tip">
            请上传
            <template v-if="fileSize">
              大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b>
            </template>
            <template v-if="fileType">
              格式为 <b style="color: #f56c6c">{{ fileType.join('/') }}</b>
            </template>
            的文件
          </div>
        </div>
      </el-tab-pane>
      
      <el-tab-pane label="输入链接" name="url">
         <div class="url-container">
           <el-input
             v-model="urlValue"
             placeholder="请输入链接地址"
             clearable
             @input="handleUrlInput"
             @blur="handleUrlBlur"
           >
             <template #prepend>URL</template>
           </el-input>
           <div class="url-error" v-if="urlValue && !isValidUrl">
             <el-alert title="请输入有效的链接地址" type="warning" :closable="false" />
           </div>
         </div>
      </el-tab-pane>
    </el-tabs>

    <el-dialog v-model="dialogVisible" title="预览" width="800px" append-to-body>
      <img :src="dialogImageUrl" style="display: block; max-width: 100%; margin: 0 auto" />
    </el-dialog>
  </div>
</template>

<script setup lang="ts">
import { listByIds, delOss } from '@/api/system/oss';
import { OssVO } from '@/api/system/oss/types';
import { propTypes } from '@/utils/propTypes';
import { globalHeaders } from '@/utils/request';
import { compressAccurately } from 'image-conversion';

const props = defineProps({
  modelValue: {
    type: String,
    default: ''
  },
  // 大小限制(MB)
  fileSize: propTypes.number.def(5),
  // 文件类型, 例如['png', 'jpg', 'jpeg']
  fileType: propTypes.array.def(['png', 'jpg', 'jpeg']),
  // 是否显示提示
  isShowTip: {
    type: Boolean,
    default: true
  },
  // 是否支持压缩，默认否
  compressSupport: {
    type: Boolean,
    default: false
  },
  // 压缩目标大小，单位KB。默认300KB以上文件才压缩，并压缩至300KB以内
  compressTargetSize: propTypes.number.def(300)
});

const { proxy } = getCurrentInstance() as ComponentInternalInstance;
const emit = defineEmits(['update:modelValue']);

const activeTab = ref('upload');
const number = ref(0);
const uploadList = ref<any[]>([]);
const dialogImageUrl = ref('');
const dialogVisible = ref(false);
const urlValue = ref('');
const isValidUrl = ref(false);

const baseUrl = import.meta.env.VITE_APP_BASE_API;
const uploadImgUrl = ref(baseUrl + '/resource/oss/upload');
const headers = ref(globalHeaders());

const fileList = ref<any[]>([]);
const showTip = computed(() => props.isShowTip && (props.fileType || props.fileSize));

const imageUploadRef = ref<ElUploadInstance>();

// 监听 fileType 变化，更新 fileAccept
const fileAccept = computed(() => props.fileType.map((type) => `.${type}`).join(','));

// URL验证函数
const validateUrl = (url: string) => {
  if (!url) return false;
  try {
    const urlObj = new URL(url);
    return urlObj.protocol === 'http:' || urlObj.protocol === 'https:';
  } catch {
    return false;
  }
};

// 处理URL输入
const handleUrlInput = (value: string) => {
  urlValue.value = value;
  isValidUrl.value = validateUrl(value);
  if (isValidUrl.value) {
    emit('update:modelValue', value);
  }
};

// 处理URL失焦
const handleUrlBlur = () => {
  if (urlValue.value && isValidUrl.value) {
    emit('update:modelValue', urlValue.value);
  }
};

// 移除图片加载错误处理函数，因为不再需要预览图片

// 处理标签页切换
const handleTabClick = () => {
  // 切换标签页时清空当前值
  if (activeTab.value === 'url') {
    urlValue.value = '';
    isValidUrl.value = false;
  }
};

// 加载OSS数据
const loadOssData = async (ossId: string) => {
  try {
    const res = await listByIds(ossId);
    if (res.data && res.data.length > 0) {
      const item = res.data[0];
      fileList.value = [{ name: item.ossId, url: item.url, ossId: item.ossId }];
    }
  } catch (error) {
    console.warn('Invalid ossId:', ossId);
    fileList.value = [];
  }
};

// 监听 modelValue 变化
watch(
  () => props.modelValue,
  (val: string) => {
    if (val) {
      // 判断是否为URL
      if (validateUrl(val)) {
        activeTab.value = 'url';
        urlValue.value = val;
        isValidUrl.value = true;
      } else {
        // 判断是否为OSS ID
        if (/^\d+$/.test(val)) {
          activeTab.value = 'upload';
          loadOssData(val);
        }
      }
    } else {
      urlValue.value = '';
      isValidUrl.value = false;
      fileList.value = [];
    }
  },
  { immediate: true }
);

/** 上传前loading加载 */
const handleBeforeUpload = (file: any) => {
  let isImg = false;
  if (props.fileType.length) {
    let fileExtension = '';
    if (file.name.lastIndexOf('.') > -1) {
      fileExtension = file.name.slice(file.name.lastIndexOf('.') + 1);
    }
    isImg = props.fileType.some((type: any) => {
      if (file.type.indexOf(type) > -1) return true;
      if (fileExtension && fileExtension.indexOf(type) > -1) return true;
      return false;
    });
  } else {
    isImg = file.type.indexOf('image') > -1;
  }
  if (!isImg) {
    proxy?.$modal.msgError(`文件格式不正确, 请上传${props.fileType.join('/')}图片格式文件!`);
    return false;
  }
  if (file.name.includes(',')) {
    proxy?.$modal.msgError('文件名不正确，不能包含英文逗号!');
    return false;
  }
  if (props.fileSize) {
    const isLt = file.size / 1024 / 1024 < props.fileSize;
    if (!isLt) {
      proxy?.$modal.msgError(`上传头像图片大小不能超过 ${props.fileSize} MB!`);
      return false;
    }
  }

  //压缩图片，开启压缩并且大于指定的压缩大小时才压缩
  if (props.compressSupport && file.size / 1024 > props.compressTargetSize) {
    proxy?.$modal.loading('正在上传图片，请稍候...');
    number.value++;
    return compressAccurately(file, props.compressTargetSize);
  } else {
    proxy?.$modal.loading('正在上传图片，请稍候...');
    number.value++;
  }
};

// 文件个数超出
const handleExceed = () => {
  proxy?.$modal.msgError('只能上传一个图片文件!');
};

// 上传成功回调
const handleUploadSuccess = (res: any, file: UploadFile) => {
  if (res.code === 200) {
    uploadList.value.push({ name: res.data.fileName, url: res.data.url, ossId: res.data.ossId });
    uploadedSuccessfully();
  } else {
    number.value--;
    proxy?.$modal.closeLoading();
    proxy?.$modal.msgError(res.msg);
    imageUploadRef.value?.handleRemove(file);
    uploadedSuccessfully();
  }
};

// 删除图片
const handleDelete = (file: UploadFile): boolean => {
  const findex = fileList.value.map((f) => f.name).indexOf(file.name);
  if (findex > -1 && uploadList.value.length === number.value) {
    const ossId = fileList.value[findex].ossId;
    delOss(ossId);
    fileList.value.splice(findex, 1);
    emit('update:modelValue', listToString(fileList.value));
    return false;
  }
  return true;
};

// 上传结束处理
const uploadedSuccessfully = () => {
  if (number.value > 0 && uploadList.value.length === number.value) {
    fileList.value = fileList.value.filter((f) => f.url !== undefined).concat(uploadList.value);
    uploadList.value = [];
    number.value = 0;
    emit('update:modelValue', listToString(fileList.value));
    proxy?.$modal.closeLoading();
  }
};

// 上传失败
const handleUploadError = () => {
  proxy?.$modal.msgError('上传图片失败');
  proxy?.$modal.closeLoading();
};

// 预览
const handlePictureCardPreview = (file: any) => {
  dialogImageUrl.value = file.url;
  dialogVisible.value = true;
};

// 对象转成指定字符串分隔
const listToString = (list: any[], separator?: string) => {
  let strs = '';
  separator = separator || ',';
  for (const i in list) {
    if (undefined !== list[i].ossId && list[i].url.indexOf('blob:') !== 0) {
      strs += list[i].ossId + separator;
    }
  }
  return strs != '' ? strs.substring(0, strs.length - 1) : '';
};
</script>

<style lang="scss" scoped>
.image-or-url-input {
  .upload-container {
    .el-upload__tip {
      margin-top: 10px;
      font-size: 12px;
      color: #606266;
    }
  }

  .url-container {
    .url-error {
      margin-top: 10px;
    }
  }
}

// .el-upload--picture-card 控制加号部分
:deep(.hide .el-upload--picture-card) {
  display: none;
}
</style>