@dnb/eufemia/es/components/upload/UploadFileList.js

DNB Eufemia Design System UI Library

"use client";

import React, { useEffect, useRef } from 'react';
import { UploadContext } from "./UploadContext.js";
import UploadFileListCell from "./UploadFileListCell.js";
import useUpload from "./useUpload.js";
import { isAsync } from "../../shared/helpers/isAsync.js";
function UploadFileList() {
  const context = React.useContext(UploadContext);
  const {
    id,
    fileListAriaLabel,
    deleteButton,
    download,
    allowDuplicates,
    loadingText,
    onFileDelete,
    onFileClick,
    onChange
  } = context;
  const {
    files,
    setFiles,
    setInternalFiles
  } = useUpload(id);
  const filesRef = useRef(null);
  useEffect(() => {
    filesRef.current = files;
  }, [files]);
  if (files === null || files.length < 1) {
    return null;
  }
  const removeFile = fileToBeRemoved => {
    return filesRef.current.filter(fileListElement => !fileIsSame(fileListElement, fileToBeRemoved));
  };
  const fileIsSame = (fileA, fileB) => {
    const idIsSame = fileA.id && fileA.id === fileB.id;
    const fileIsSame = fileA.file && fileA.file === fileB.file;
    return idIsSame || fileIsSame;
  };
  const updateFile = (fileToBeUpdated, props) => {
    return filesRef.current.map(fileListElement => {
      return fileIsSame(fileListElement, fileToBeUpdated) ? {
        ...fileListElement,
        ...props
      } : fileListElement;
    });
  };
  const updateFiles = updatedFiles => {
    setFiles(updatedFiles);
    setInternalFiles(updatedFiles);
    if (typeof onChange === 'function') {
      onChange({
        files: updatedFiles
      });
    }
  };
  const handleDeleteAsync = async uploadFile => {
    updateFiles(updateFile(uploadFile, {
      isLoading: true,
      errorMessage: null
    }));
    try {
      await onFileDelete({
        fileItem: uploadFile
      });
      updateFiles(removeFile(uploadFile));
    } catch (error) {
      updateFiles(updateFile(uploadFile, {
        isLoading: false,
        errorMessage: error.message
      }));
    }
  };
  const handleFileClickAsync = async uploadFile => {
    updateFiles(updateFile(uploadFile, {
      isLoading: true
    }));
    try {
      await onFileClick({
        fileItem: uploadFile
      });
    } catch (error) {}
    updateFiles(updateFile(uploadFile, {
      isLoading: false
    }));
  };
  return React.createElement("ul", {
    className: "dnb-upload__file-list",
    "aria-label": fileListAriaLabel
  }, files.map((uploadFile, index) => {
    const onDeleteHandler = async () => {
      if (typeof onFileDelete === 'function') {
        if (isAsync(onFileDelete)) {
          handleDeleteAsync(uploadFile);
        } else {
          onFileDelete({
            fileItem: uploadFile
          });
          updateFiles(removeFile(uploadFile));
        }
      } else {
        updateFiles(removeFile(uploadFile));
      }
    };
    const onFileClickHandler = async () => {
      if (typeof onFileClick === 'function') {
        if (isAsync(onFileClick)) {
          handleFileClickAsync(uploadFile);
        } else {
          onFileClick({
            fileItem: uploadFile
          });
        }
      }
    };
    return React.createElement(UploadFileListCell, {
      key: index,
      id: id,
      uploadFile: uploadFile,
      onDelete: onDeleteHandler,
      onClick: onFileClick && onFileClickHandler,
      deleteButtonText: deleteButton,
      loadingText: loadingText,
      download: download,
      allowDuplicates: allowDuplicates
    });
  }));
}
export default UploadFileList;
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