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* @Description: 对上传文件组件进行封装\r\n * @Author: kcz\r\n * @Date: 2020-03-17 12:53:50\r\n * @LastEditors: kcz\r\n * @LastEditTime: 2022-10-26 21:14:12\r\n -->\r\n<template>\r\n <div :style=\"{ width: record.options.width }\">\r\n <Upload\r\n v-if=\"!record.options.drag\"\r\n :disabled=\"record.options.disabled || parentDisabled\"\r\n :name=\"config.uploadFileName || record.options.fileName\"\r\n :headers=\"config.uploadFileHeaders || record.options.headers\"\r\n :data=\"config.uploadFileData || optionsData\"\r\n :action=\"config.uploadFile || record.options.action\"\r\n :multiple=\"record.options.multiple\"\r\n :fileList=\"fileList\"\r\n @preview=\"handlePreview\"\r\n @change=\"handleChange\"\r\n :remove=\"remove\"\r\n :beforeUpload=\"beforeUpload\"\r\n >\r\n <Button\r\n v-if=\"fileList.length < record.options.limit\"\r\n :disabled=\"record.options.disabled || parentDisabled\"\r\n >\r\n <a-icon type=\"upload\" /> {{ record.options.placeholder }}\r\n </Button>\r\n </Upload>\r\n <UploadDragger\r\n v-else\r\n :class=\"{ 'hide-upload-drag': !(fileList.length < record.options.limit) }\"\r\n :disabled=\"record.options.disabled || parentDisabled\"\r\n :name=\"config.uploadFileName || record.options.fileName\"\r\n :headers=\"config.uploadFileHeaders || record.options.headers\"\r\n :data=\"config.uploadFileData || optionsData\"\r\n :action=\"config.uploadFile || record.options.action\"\r\n :multiple=\"record.options.multiple\"\r\n :fileList=\"fileList\"\r\n @preview=\"handlePreview\"\r\n @change=\"handleChange\"\r\n :remove=\"remove\"\r\n :beforeUpload=\"beforeUpload\"\r\n >\r\n <p class=\"ant-upload-drag-icon\">\r\n <a-icon type=\"cloud-upload\" />\r\n </p>\r\n <p class=\"ant-upload-text\">单击或拖动文件到此区域</p>\r\n </UploadDragger>\r\n </div>\r\n</template>\r\n<script>\r\n/*\r\n * author kcz\r\n * date 2019-12-31\r\n * description 上传文件组件\r\n */\r\nimport { message } from \"ant-design-vue\";\r\nimport { pluginManager } from \"../../utils/index\";\r\n\r\nconst Upload = pluginManager.getComponent(\"upload\");\r\nconst UploadDragger = pluginManager.getComponent(\"uploadDragger\");\r\nconst Button = pluginManager.getComponent(\"aButton\").component;\r\n\r\nexport default {\r\n name: \"KUploadFile\",\r\n // eslint-disable-next-line vue/require-prop-types\r\n props: [\"record\", \"value\", \"config\", \"parentDisabled\", \"dynamicData\"],\r\n components: {\r\n Upload: Upload.component,\r\n UploadDragger: UploadDragger.component,\r\n Button\r\n },\r\n data() {\r\n return {\r\n fileList: []\r\n };\r\n },\r\n watch: {\r\n value: {\r\n // value 需要深度监听及默认先执行handler函数\r\n handler(val) {\r\n if (val) {\r\n this.setFileList();\r\n }\r\n },\r\n immediate: true,\r\n deep: true\r\n }\r\n },\r\n\r\n computed: {\r\n optionsData() {\r\n try {\r\n return JSON.parse(this.record.options.data);\r\n } catch (err) {\r\n console.error(err);\r\n return {};\r\n }\r\n }\r\n },\r\n methods: {\r\n setFileList() {\r\n // 当传入value改变时，fileList也要改变\r\n // 如果传入的值为字符串，则转成json\r\n if (typeof this.value === \"string\") {\r\n this.fileList = JSON.parse(this.value);\r\n // 将转好的json覆盖组件默认值的字符串\r\n this.handleSelectChange();\r\n } else {\r\n this.fileList = this.value;\r\n }\r\n },\r\n handleSelectChange() {\r\n setTimeout(() => {\r\n const arr = this.fileList.map(item => {\r\n if (typeof item.response !== \"undefined\") {\r\n const res = item.response;\r\n return {\r\n type: \"file\",\r\n name: item.name,\r\n status: item.status,\r\n uid: res.data.fileId || Date.now(),\r\n url: res.data.url || \"\"\r\n };\r\n } else {\r\n return {\r\n type: \"file\",\r\n name: item.name,\r\n status: item.status,\r\n uid: item.uid,\r\n url: item.url || \"\"\r\n };\r\n }\r\n });\r\n\r\n this.$emit(\"change\", arr);\r\n this.$emit(\"input\", arr);\r\n }, 10);\r\n },\r\n handlePreview(file) {\r\n // 下载文件\r\n const downloadWay = this.record.options.downloadWay;\r\n const dynamicFun = this.record.options.dynamicFun;\r\n if (downloadWay === \"a\") {\r\n // 使用a标签下载\r\n const a = document.createElement(\"a\");\r\n a.href = file.url || file.thumbUrl;\r\n a.download = file.name;\r\n a.click();\r\n } else if (downloadWay === \"ajax\") {\r\n // 使用ajax获取文件blob，并保持到本地\r\n this.getBlob(file.url || file.thumbUrl).then(blob => {\r\n this.saveAs(blob, file.name);\r\n });\r\n } else if (downloadWay === \"dynamic\") {\r\n // 触发动态函数\r\n this.dynamicData[dynamicFun](file);\r\n }\r\n },\r\n /**\r\n * 获取 blob\r\n * url 目标文件地址\r\n */\r\n getBlob(url) {\r\n return new Promise(resolve => {\r\n const xhr = new XMLHttpRequest();\r\n\r\n xhr.open(\"GET\", url, true);\r\n xhr.responseType = \"blob\";\r\n xhr.onload = () => {\r\n if (xhr.status === 200) {\r\n resolve(xhr.response);\r\n }\r\n };\r\n\r\n xhr.send();\r\n });\r\n },\r\n /**\r\n * 保存 blob\r\n * filename 想要保存的文件名称\r\n */\r\n saveAs(blob, filename) {\r\n if (window.navigator.msSaveOrOpenBlob) {\r\n navigator.msSaveBlob(blob, filename);\r\n } else {\r\n const link = document.createElement(\"a\");\r\n const body = document.querySelector(\"body\");\r\n link.href = window.URL.createObjectURL(blob);\r\n link.download = filename;\r\n\r\n // fix Firefox\r\n link.style.display = \"none\";\r\n body.appendChild(link);\r\n\r\n link.click();\r\n body.removeChild(link);\r\n\r\n window.URL.revokeObjectURL(link.href);\r\n }\r\n },\r\n remove() {\r\n this.handleSelectChange();\r\n },\r\n beforeUpload(e, files) {\r\n if (files.length + this.fileList.length > this.record.options.limit) {\r\n message.warning(`最大上传数量为${this.record.options.limit}`);\r\n files.splice(this.record.options.limit - this.fileList.length);\r\n }\r\n },\r\n handleChange(info) {\r\n this.fileList = info.fileList;\r\n if (info.file.status === \"done\") {\r\n const res = info.file.response;\r\n if (res.code === 0) {\r\n this.handleSelectChange();\r\n } else {\r\n this.fileList.pop();\r\n message.error(`文件上传失败`);\r\n }\r\n } else if (info.file.status === \"error\") {\r\n message.error(`文件上传失败`);\r\n }\r\n }\r\n }\r\n};\r\n</script>\r\n"]}]}
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