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uni_modules/uview-plus/components/u-upload/utils.js 4.36 KB
252962bb   刘淇   uni_modu
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  function pickExclude(obj, keys) {
  	// 某些情况下,type可能会为
      if (!['[object Object]', '[object File]'].includes(Object.prototype.toString.call(obj))) {
          return {}
      }
      return Object.keys(obj).reduce((prev, key) => {
          if (!keys.includes(key)) {
              prev[key] = obj[key]
          }
          return prev
      }, {})
  }
  
  function formatImage(res) {
      return res.tempFiles.map((item) => ({
          ...pickExclude(item, ['path']),
          type: 'image',
          url: item.path,
          thumb: item.path,
  		size: item.size,
  		// #ifdef H5
  		name: item.name,
  		file: item
  		// #endif
      }))
  }
  
  function formatVideo(res) {
      return [
          {
              ...pickExclude(res, ['tempFilePath', 'thumbTempFilePath', 'errMsg']),
              type: 'video',
              url: res.tempFilePath,
              thumb: res.thumbTempFilePath,
  			size: res.size,
  			// #ifdef H5
  			name: res.name,
  			file: res
  			// #endif
          }
      ]
  }
  
  function formatMedia(res) {
      return res.tempFiles.map((item) => ({
          ...pickExclude(item, ['fileType', 'thumbTempFilePath', 'tempFilePath']),
          type: res.type,
          url: item.tempFilePath,
          thumb: res.type === 'video' ? item.thumbTempFilePath : item.tempFilePath,
  		size: item.size,
  		// #ifdef H5
  		file: item
  		// #endif
      }))
  }
  
  function formatFile(res) {
      return res.tempFiles.map((item) => ({ 
  		...pickExclude(item, ['path']), 
  		url: item.path, 
  		size:item.size,
  		// #ifdef H5
  		name: item.name,
  		type: item.type,
  		file: item
  		// #endif 
  	}))
  }
  export function chooseFile({
      accept,
      multiple,
      capture,
      compressed,
      maxDuration,
      sizeType,
      camera,
      maxCount,
      extension
  }) {
      return new Promise((resolve, reject) => {
          switch (accept) {
          case 'image':
              uni.chooseImage({
                  count: multiple ? Math.min(maxCount, 9) : 1,
                  sourceType: capture,
                  sizeType,
                  success: (res) => resolve(formatImage(res)),
                  fail: reject
              })
              break
              // #ifdef MP-WEIXIN
              // 只有微信小程序才支持chooseMedia接口
          case 'media':
              wx.chooseMedia({
                  count: multiple ? Math.min(maxCount, 9) : 1,
                  sourceType: capture,
                  maxDuration,
                  sizeType,
                  camera,
                  success: (res) => resolve(formatMedia(res)),
                  fail: reject
              })
              break
              // #endif
          case 'video':
              uni.chooseVideo({
                  sourceType: capture,
                  compressed,
                  maxDuration,
                  camera,
                  success: (res) => resolve(formatVideo(res)),
                  fail: reject
              })
              break
              // #ifdef MP-WEIXIN || H5
              // 只有微信小程序才支持chooseMessageFile接口
          case 'file':
              // #ifdef MP-WEIXIN
              wx.chooseMessageFile({
                  count: multiple ? maxCount : 1,
                  type: accept,
                  success: (res) => resolve(formatFile(res)),
                  fail: reject
              })
              // #endif
              // #ifdef H5
              // 需要hx2.9.9以上才支持uni.chooseFile
              let params = {
                  count: multiple ? maxCount : 1,
                  type: accept,
                  success: (res) => resolve(formatFile(res)),
                  fail: reject
              }
              if (extension.length && extension.length > 0) {
                  params.extension = extension
              }
              uni.chooseFile(params)
              // #endif
              break
  				// #endif
  		default: 
  			// 此为保底选项,在accept不为上面任意一项的时候选取全部文件
  			// #ifdef MP-WEIXIN
  			wx.chooseMessageFile({
  			    count: multiple ? maxCount : 1,
  			    type: 'all',
  			    success: (res) => resolve(formatFile(res)),
  			    fail: reject
  			})
  			// #endif
  			// #ifdef H5
  			// 需要hx2.9.9以上才支持uni.chooseFile
              let paramsFile = {
                  count: multiple ? maxCount : 1,
  				type: 'all',
  				success: (res) => resolve(formatFile(res)),
  				fail: reject
              }
              if (extension.length && extension.length > 0) {
                  paramsFile.extension = extension
              }
  			uni.chooseFile(paramsFile)
  			// #endif
          }
      })
  }