tdesign-mobile-vue/es/_common/js/image-viewer/utils.mjs.map

tdesign-mobile-vue

{"version":3,"file":"utils.mjs","sources":["../../../../src/_common/js/image-viewer/utils.ts"],"sourcesContent":["import { isArray, isString } from 'lodash-es';\nimport type { ImageInfo, Images } from './types';\n\nconst isSameOrigin = (url: string) => {\n  try {\n    const imgUrl = new URL(url, window.location.href);\n    return imgUrl.origin === window.location.origin;\n  } catch {\n    return false;\n  }\n};\n\nconst directDownload = (imgSrc: string, name: string) => {\n  const a = document.createElement('a');\n  a.download = name;\n  a.href = imgSrc;\n  a.click();\n  a.remove();\n};\n\nconst fileDownload = (obj: Blob | MediaSource, name: string) => {\n  const url = URL.createObjectURL(obj);\n  const a = document.createElement('a');\n  a.href = url;\n  a.download = name;\n  a.click();\n  a.remove();\n  URL.revokeObjectURL(url);\n};\n\nconst canvasDownload = (imgSrc: string, name: string) => {\n  const image = new Image();\n  image.setAttribute('crossOrigin', 'anonymous');\n\n  image.onload = () => {\n    const canvas = document.createElement('canvas');\n    canvas.width = image.width;\n    canvas.height = image.height;\n\n    const context = canvas.getContext('2d');\n    context.drawImage(image, 0, 0, image.width, image.height);\n\n    const extension = name.split('.').pop()?.toLowerCase() || 'png';\n    const mimeType = `image/${extension === 'jpg' ? 'jpeg' : extension}`;\n\n    canvas.toBlob((blob) => {\n      fileDownload(blob, name);\n    }, mimeType);\n  };\n  image.src = imgSrc;\n};\n\nexport const downloadImage = (imgSrc: string | File) => {\n  const randomName = Math.random().toString(32).slice(2);\n\n  if (imgSrc instanceof File) {\n    fileDownload(imgSrc, imgSrc.name);\n    return;\n  }\n\n  // fix: https://github.com/Tencent/tdesign-vue-next/issues/2936\n  // 当链接携带了参数时，需处理掉参数再取图片名称，否则扩展名会与参数链接导致原扩展名失效\n  // 例如：img.png?sign=xxx 不处理参数会被转成 img.png_sign=xxx\n  const name = imgSrc?.split?.('?')?.[0]?.split?.('#')?.[0]?.split?.('/').pop() || randomName;\n\n  if (isSameOrigin(imgSrc)) {\n    directDownload(imgSrc, name);\n  } else {\n    canvasDownload(imgSrc, name);\n  }\n};\n\nconst isImageInfo = (image: string | File | ImageInfo): image is ImageInfo =>\n  !!image && !isString(image) && !(image instanceof File);\n\nexport const formatImages = (images: Images): ImageInfo[] => {\n  if (!isArray(images)) return [];\n  return images.map((item) => {\n    if (isImageInfo(item)) {\n      return {\n        download: true,\n        thumbnail: item.mainImage,\n        ...item,\n      };\n    }\n    return {\n      mainImage: item,\n      thumbnail: item,\n      download: true,\n    };\n  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