Signing Page - New Design #152

Merged
eugene merged 29 commits from sigit-info-signing-page into staging 2024-08-20 11:29:11 +00:00
12 changed files with 402 additions and 157 deletions
Showing only changes of commit 6d881ccb45 - Show all commits

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@ -0,0 +1,41 @@
import { CurrentUserFile } from '../../types/file.ts'
import styles from './style.module.scss'
import { Button } from '@mui/material'
interface FileListProps {
files: CurrentUserFile[]
currentFile: CurrentUserFile
setCurrentFile: (file: CurrentUserFile) => void
handleDownload: () => void
}
const FileList = ({
files,
currentFile,
setCurrentFile,
handleDownload
}: FileListProps) => {
const isActive = (file: CurrentUserFile) => file.id === currentFile.id
return (
<div className={styles.container}>
<div className={styles.files}></div>
<ul>
{files.map((file: CurrentUserFile) => (
<li
key={file.id}
className={`${styles.fileItem} ${isActive(file) && styles.active}`}
onClick={() => setCurrentFile(file)}
>
<span className={styles.fileNumber}>{file.id}</span>
<span className={styles.fileName}>{file.filename}</span>
</li>
))}
</ul>
<Button variant="contained" fullWidth onClick={handleDownload}>
Download Files
</Button>
</div>
)
}
export default FileList

View File

@ -0,0 +1,78 @@
.container {
border-radius: 4px;
background: white;
padding: 15px;
display: flex;
flex-direction: column;
grid-gap: 0px;
}
.files {
display: flex;
flex-direction: column;
width: 100%;
grid-gap: 15px;
max-height: 350px;
overflow: auto;
padding: 0 5px 0 0;
margin: 0 -5px 0 0;
}
.files::-webkit-scrollbar {
width: 10px;
}
.files::-webkit-scrollbar-track {
background-color: rgba(0,0,0,0.15);
}
.files::-webkit-scrollbar-thumb {
max-width: 10px;
border-radius: 2px;
background-color: #4c82a3;
cursor: grab;
}
.fileItem {
transition: ease 0.2s;
display: flex;
flex-direction: row;
grid-gap: 10px;
border-radius: 4px;
overflow: hidden;
background: #ffffff;
padding: 5px 10px;
align-items: center;
color: rgba(0,0,0,0.5);
cursor: pointer;
flex-grow: 1;
font-size: 16px;
font-weight: 500;
}
.fileItem:hover {
transition: ease 0.2s;
background: #4c82a3;
color: white;
&.active {
background: #4c82a3;
color: white;
}
}
.fileName {
display: -webkit-box;
-webkit-box-orient: vertical;
overflow: hidden;
-webkit-line-clamp: 1;
}
.fileNumber {
font-size: 14px;
font-weight: 500;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}

View File

@ -1,24 +1,26 @@
import PdfView from './index.tsx'
import MarkFormField from '../MarkFormField'
import { PdfFile } from '../../types/drawing.ts'
import { CurrentUserMark, Mark } from '../../types/mark.ts'
import React, { useState, useEffect } from 'react'
import {
findNextIncompleteCurrentUserMark,
getUpdatedMark,
isCurrentUserMarksComplete,
updateCurrentUserMarks
} from '../../utils'
import { EMPTY } from '../../utils/const.ts'
import { Container } from '../Container'
import styles from '../../pages/sign/style.module.scss'
import signPageStyles from '../../pages/sign/style.module.scss'
import styles from './style.module.scss'
import { CurrentUserFile } from '../../types/file.ts'
import FileList from '../FileList'
interface PdfMarkingProps {
files: { pdfFile: PdfFile; filename: string; hash: string | null }[]
files: CurrentUserFile[]
currentUserMarks: CurrentUserMark[]
setIsReadyToSign: (isReadyToSign: boolean) => void
setCurrentUserMarks: (currentUserMarks: CurrentUserMark[]) => void
setUpdatedMarks: (markToUpdate: Mark) => void
handleDownload: () => void
}
/**
@ -33,10 +35,12 @@ const PdfMarking = (props: PdfMarkingProps) => {
currentUserMarks,
setIsReadyToSign,
setCurrentUserMarks,
setUpdatedMarks
setUpdatedMarks,
handleDownload
} = props
const [selectedMark, setSelectedMark] = useState<CurrentUserMark | null>(null)
const [selectedMarkValue, setSelectedMarkValue] = useState<string>('')
const [currentFile, setCurrentFile] = useState<CurrentUserFile | null>(null)
useEffect(() => {
if (selectedMark === null && currentUserMarks.length > 0) {
@ -47,6 +51,12 @@ const PdfMarking = (props: PdfMarkingProps) => {
}
}, [currentUserMarks, selectedMark])
useEffect(() => {
if (currentFile === null && files.length > 0) {
setCurrentFile(files[0])
}
}, [files, currentFile])
const handleMarkClick = (id: number) => {
const nextMark = currentUserMarks.find((mark) => mark.mark.id === id)
setSelectedMark(nextMark!)
@ -101,8 +111,20 @@ const PdfMarking = (props: PdfMarkingProps) => {
return (
<>
<Container className={styles.container}>
<Container className={signPageStyles.container}>
<div className={styles.container}>
<div>
{currentFile !== null && (
<FileList
files={files}
currentFile={currentFile}
setCurrentFile={setCurrentFile}
handleDownload={handleDownload}
/>
)}
</div>
{currentUserMarks?.length > 0 && (
<div className={styles.pdfView}>
<PdfView
files={files}
handleMarkClick={handleMarkClick}
@ -110,7 +132,9 @@ const PdfMarking = (props: PdfMarkingProps) => {
selectedMark={selectedMark}
currentUserMarks={currentUserMarks}
/>
</div>
)}
</div>
{selectedMark !== null && (
<MarkFormField
handleSubmit={handleSubmit}

View File

@ -1,10 +1,10 @@
import { PdfFile } from '../../types/drawing.ts'
import { Box } from '@mui/material'
import PdfItem from './PdfItem.tsx'
import { CurrentUserMark } from '../../types/mark.ts'
import { CurrentUserFile } from '../../types/file.ts'
interface PdfViewProps {
files: { pdfFile: PdfFile, filename: string, hash: string | null }[]
files: CurrentUserFile[]
currentUserMarks: CurrentUserMark[]
handleMarkClick: (id: number) => void
selectedMarkValue: string
@ -14,14 +14,24 @@ interface PdfViewProps {
/**
* Responsible for rendering Pdf files.
*/
const PdfView = ({ files, currentUserMarks, handleMarkClick, selectedMarkValue, selectedMark }: PdfViewProps) => {
const filterByFile = (currentUserMarks: CurrentUserMark[], hash: string): CurrentUserMark[] => {
return currentUserMarks.filter((currentUserMark) => currentUserMark.mark.pdfFileHash === hash)
const PdfView = ({
files,
currentUserMarks,
handleMarkClick,
selectedMarkValue,
selectedMark
}: PdfViewProps) => {
const filterByFile = (
currentUserMarks: CurrentUserMark[],
hash: string
): CurrentUserMark[] => {
return currentUserMarks.filter(
(currentUserMark) => currentUserMark.mark.pdfFileHash === hash
)
}
return (
<Box sx={{ width: '100%' }}>
{
files.map(({ pdfFile, hash }, i) => {
{files.map(({ pdfFile, hash }, i) => {
if (!hash) return
return (
<PdfItem
@ -33,10 +43,9 @@ const PdfView = ({ files, currentUserMarks, handleMarkClick, selectedMarkValue,
selectedMarkValue={selectedMarkValue}
/>
)
})
}
})}
</Box>
)
}
export default PdfView;
export default PdfView

View File

@ -14,3 +14,16 @@
max-height: 100%;
object-fit: contain; /* Ensure the image fits within the container */
}
.container {
display: flex;
width: 100%;
flex-direction: column;
}
.pdfView {
display: flex;
flex-direction: column;
width: 100%;
height: 100%;
}

View File

@ -16,13 +16,16 @@ import { State } from '../../store/rootReducer'
import { CreateSignatureEventContent, Meta, SignedEvent } from '../../types'
import {
decryptArrayBuffer,
encryptArrayBuffer, extractMarksFromSignedMeta,
encryptArrayBuffer,
extractMarksFromSignedMeta,
extractZipUrlAndEncryptionKey,
generateEncryptionKey,
generateKeysFile, getFilesWithHashes,
generateKeysFile,
getCurrentUserFiles,
getHash,
hexToNpub,
isOnline, loadZip,
isOnline,
loadZip,
now,
npubToHex,
parseJson,
@ -41,9 +44,12 @@ import { getLastSignersSig } from '../../utils/sign.ts'
import {
filterMarksByPubkey,
getCurrentUserMarks,
isCurrentUserMarksComplete, updateMarks
isCurrentUserMarksComplete,
updateMarks
} from '../../utils'
import PdfMarking from '../../components/PDFView/PdfMarking.tsx'
import { getZipWithFiles } from '../../utils/file.ts'
import { ARRAY_BUFFER, DEFLATE } from '../../utils/const.ts'
enum SignedStatus {
Fully_Signed,
User_Is_Next_Signer,
@ -81,7 +87,7 @@ export const SignPage = () => {
const [signers, setSigners] = useState<`npub1${string}`[]>([])
const [viewers, setViewers] = useState<`npub1${string}`[]>([])
const [marks, setMarks] = useState<Mark[] >([])
const [marks, setMarks] = useState<Mark[]>([])
const [creatorFileHashes, setCreatorFileHashes] = useState<{
[key: string]: string
}>({})
@ -100,8 +106,10 @@ export const SignPage = () => {
const [authUrl, setAuthUrl] = useState<string>()
const nostrController = NostrController.getInstance()
const [currentUserMarks, setCurrentUserMarks] = useState<CurrentUserMark[]>([]);
const [isReadyToSign, setIsReadyToSign] = useState(false);
const [currentUserMarks, setCurrentUserMarks] = useState<CurrentUserMark[]>(
[]
)
const [isReadyToSign, setIsReadyToSign] = useState(false)
useEffect(() => {
if (signers.length > 0) {
@ -192,13 +200,16 @@ export const SignPage = () => {
setViewers(createSignatureContent.viewers)
setCreatorFileHashes(createSignatureContent.fileHashes)
setSubmittedBy(createSignatureEvent.pubkey)
setMarks(createSignatureContent.markConfig);
setMarks(createSignatureContent.markConfig)
if (usersPubkey) {
const metaMarks = filterMarksByPubkey(createSignatureContent.markConfig, usersPubkey!)
const metaMarks = filterMarksByPubkey(
createSignatureContent.markConfig,
usersPubkey!
)
const signedMarks = extractMarksFromSignedMeta(meta)
const currentUserMarks = getCurrentUserMarks(metaMarks, signedMarks);
setCurrentUserMarks(currentUserMarks);
const currentUserMarks = getCurrentUserMarks(metaMarks, signedMarks)
setCurrentUserMarks(currentUserMarks)
// setCurrentUserMark(findNextCurrentUserMark(currentUserMarks) || null)
setIsReadyToSign(isCurrentUserMarksComplete(currentUserMarks))
}
@ -307,7 +318,7 @@ export const SignPage = () => {
)
if (arrayBuffer) {
files[fileName] = await convertToPdfFile(arrayBuffer, fileName);
files[fileName] = await convertToPdfFile(arrayBuffer, fileName)
const hash = await getHash(arrayBuffer)
if (hash) {
@ -348,7 +359,7 @@ export const SignPage = () => {
const decrypt = async (file: File) => {
setLoadingSpinnerDesc('Decrypting file')
const zip = await loadZip(file);
const zip = await loadZip(file)
if (!zip) return
const parsedKeysJson = await parseKeysJson(zip)
@ -414,6 +425,27 @@ export const SignPage = () => {
return null
}
const handleDownload = async () => {
if (Object.entries(files).length === 0 || !meta || !usersPubkey) return
setLoadingSpinnerDesc('Generating file')
try {
const zip = await getZipWithFiles(meta, files)
const arrayBuffer = await zip.generateAsync({
type: ARRAY_BUFFER,
compression: DEFLATE,
compressionOptions: {
level: 6
}
})
if (!arrayBuffer) return
const blob = new Blob([arrayBuffer])
saveAs(blob, `exported-${now()}.sigit.zip`)
} catch (error: any) {
console.log('error in zip:>> ', error)
toast.error(error.message || 'Error occurred in generating zip file')
}
}
const handleDecryptedArrayBuffer = async (arrayBuffer: ArrayBuffer) => {
const decryptedZipFile = new File([arrayBuffer], 'decrypted.zip')
@ -439,7 +471,7 @@ export const SignPage = () => {
)
if (arrayBuffer) {
files[fileName] = await convertToPdfFile(arrayBuffer, fileName);
files[fileName] = await convertToPdfFile(arrayBuffer, fileName)
const hash = await getHash(arrayBuffer)
if (hash) {
@ -520,7 +552,10 @@ export const SignPage = () => {
}
// Sign the event for the meta file
const signEventForMeta = async (signerContent: { prevSig: string, marks: Mark[] }) => {
const signEventForMeta = async (signerContent: {
prevSig: string
marks: Mark[]
}) => {
return await signEventForMetaFile(
JSON.stringify(signerContent),
nostrController,
@ -529,8 +564,8 @@ export const SignPage = () => {
}
const getSignerMarksForMeta = (): Mark[] | undefined => {
if (currentUserMarks.length === 0) return;
return currentUserMarks.map(( { mark }: CurrentUserMark) => mark);
if (currentUserMarks.length === 0) return
return currentUserMarks.map(({ mark }: CurrentUserMark) => mark)
}
// Update the meta signatures
@ -600,13 +635,9 @@ export const SignPage = () => {
if (!arraybuffer) return null
return new File(
[new Blob([arraybuffer])],
`${unixNow}.sigit.zip`,
{
return new File([new Blob([arraybuffer])], `${unixNow}.sigit.zip`, {
type: 'application/zip'
}
)
})
}
// Handle errors during zip file generation
@ -694,7 +725,7 @@ export const SignPage = () => {
setIsLoading(true)
setLoadingSpinnerDesc('Signing nostr event')
if (!meta) return;
if (!meta) return
const prevSig = getLastSignersSig(meta, signers)
if (!prevSig) return
@ -918,11 +949,14 @@ export const SignPage = () => {
)
}
return <PdfMarking
files={getFilesWithHashes(files, currentFileHashes)}
return (
<PdfMarking
files={getCurrentUserFiles(files, currentFileHashes)}
currentUserMarks={currentUserMarks}
setIsReadyToSign={setIsReadyToSign}
setCurrentUserMarks={setCurrentUserMarks}
setUpdatedMarks={setUpdatedMarks}
handleDownload={handleDownload}
/>
)
}

View File

@ -23,14 +23,17 @@ import {
SignedEventContent
} from '../../types'
import {
decryptArrayBuffer, extractMarksFromSignedMeta,
decryptArrayBuffer,
extractMarksFromSignedMeta,
extractZipUrlAndEncryptionKey,
getHash,
hexToNpub, now,
hexToNpub,
now,
npubToHex,
parseJson,
readContentOfZipEntry,
shorten, signEventForMetaFile
shorten,
signEventForMetaFile
} from '../../utils'
import styles from './style.module.scss'
import { Cancel, CheckCircle } from '@mui/icons-material'
@ -41,7 +44,7 @@ import {
addMarks,
convertToPdfBlob,
convertToPdfFile,
groupMarksByPage,
groupMarksByPage
} from '../../utils/pdf.ts'
import { State } from '../../store/rootReducer.ts'
import { useSelector } from 'react-redux'
@ -78,7 +81,7 @@ export const VerifyPage = () => {
const [currentFileHashes, setCurrentFileHashes] = useState<{
[key: string]: string | null
}>({})
const [files, setFiles] = useState<{ [filename: string]: PdfFile}>({})
const [files, setFiles] = useState<{ [filename: string]: PdfFile }>({})
const [metadata, setMetadata] = useState<{ [key: string]: ProfileMetadata }>(
{}
@ -155,7 +158,10 @@ export const VerifyPage = () => {
)
if (arrayBuffer) {
files[fileName] = await convertToPdfFile(arrayBuffer, fileName!)
files[fileName] = await convertToPdfFile(
arrayBuffer,
fileName!
)
const hash = await getHash(arrayBuffer)
if (hash) {
@ -169,7 +175,6 @@ export const VerifyPage = () => {
setCurrentFileHashes(fileHashes)
setFiles(files)
setSigners(createSignatureContent.signers)
setViewers(createSignatureContent.viewers)
setCreatorFileHashes(createSignatureContent.fileHashes)
@ -177,8 +182,6 @@ export const VerifyPage = () => {
setMeta(metaInNavState)
setIsLoading(false)
}
})
.catch((err) => {
@ -381,7 +384,7 @@ export const VerifyPage = () => {
}
const handleExport = async () => {
if (Object.entries(files).length === 0 ||!meta ||!usersPubkey) return;
if (Object.entries(files).length === 0 || !meta || !usersPubkey) return
const usersNpub = hexToNpub(usersPubkey)
if (
@ -395,10 +398,8 @@ export const VerifyPage = () => {
setIsLoading(true)
setLoadingSpinnerDesc('Signing nostr event')
if (!meta) return;
const prevSig = getLastSignersSig(meta, signers)
if (!prevSig) return;
if (!prevSig) return
const signedEvent = await signEventForMetaFile(
JSON.stringify({ prevSig }),
@ -406,10 +407,10 @@ export const VerifyPage = () => {
setIsLoading
)
if (!signedEvent) return;
if (!signedEvent) return
const exportSignature = JSON.stringify(signedEvent, null, 2)
const updatedMeta = {...meta, exportSignature }
const updatedMeta = { ...meta, exportSignature }
const stringifiedMeta = JSON.stringify(updatedMeta, null, 2)
const zip = new JSZip()

8
src/types/file.ts Normal file
View File

@ -0,0 +1,8 @@
import { PdfFile } from './drawing.ts'
export interface CurrentUserFile {
id: number
pdfFile: PdfFile
filename: string
hash?: string
}

View File

@ -6,3 +6,5 @@ export const MARK_TYPE_TRANSLATION: { [key: string]: string } = {
}
export const SIGN: string = 'Sign'
export const NEXT: string = 'Next'
export const ARRAY_BUFFER = 'arraybuffer'
export const DEFLATE = 'DEFLATE'

24
src/utils/file.ts Normal file
View File

@ -0,0 +1,24 @@
import { Meta } from '../types'
import { extractMarksFromSignedMeta } from './mark.ts'
import { addMarks, convertToPdfBlob, groupMarksByPage } from './pdf.ts'
import JSZip from 'jszip'
import { PdfFile } from '../types/drawing.ts'
const getZipWithFiles = async (
meta: Meta,
files: { [filename: string]: PdfFile }
): Promise<JSZip> => {
const zip = new JSZip()
const marks = extractMarksFromSignedMeta(meta)
const marksByPage = groupMarksByPage(marks)
for (const [fileName, pdf] of Object.entries(files)) {
const pages = await addMarks(pdf.file, marksByPage)
const blob = await convertToPdfBlob(pages)
zip.file(`/files/${fileName}`, blob)
}
return zip
}
export { getZipWithFiles }

View File

@ -3,13 +3,14 @@ import * as PDFJS from 'pdfjs-dist'
import { PDFDocument } from 'pdf-lib'
import { Mark } from '../types/mark.ts'
PDFJS.GlobalWorkerOptions.workerSrc = 'node_modules/pdfjs-dist/build/pdf.worker.mjs';
PDFJS.GlobalWorkerOptions.workerSrc =
'node_modules/pdfjs-dist/build/pdf.worker.mjs'
/**
* Scale between the PDF page's natural size and rendered size
* @constant {number}
*/
const SCALE: number = 3;
const SCALE: number = 3
/**
* Defined font size used when generating a PDF. Currently it is difficult to fully
* correlate font size used at the time of filling in / drawing on the PDF
@ -17,20 +18,20 @@ const SCALE: number = 3;
* This should be fixed going forward.
* Switching to PDF-Lib will most likely make this problem redundant.
*/
const FONT_SIZE: number = 40;
const FONT_SIZE: number = 40
/**
* Current font type used when generating a PDF.
*/
const FONT_TYPE: string = 'Arial';
const FONT_TYPE: string = 'Arial'
/**
* Converts a PDF ArrayBuffer to a generic PDF File
* @param arrayBuffer of a PDF
* @param fileName identifier of the pdf file
*/
const toFile = (arrayBuffer: ArrayBuffer, fileName: string) : File => {
const blob = new Blob([arrayBuffer], { type: "application/pdf" });
return new File([blob], fileName, { type: "application/pdf" });
const toFile = (arrayBuffer: ArrayBuffer, fileName: string): File => {
const blob = new Blob([arrayBuffer], { type: 'application/pdf' })
return new File([blob], fileName, { type: 'application/pdf' })
}
/**
@ -50,42 +51,40 @@ const toPdfFile = async (file: File): Promise<PdfFile> => {
* @return PdfFile[] - an array of Sigit's internal Pdf File type
*/
const toPdfFiles = async (selectedFiles: File[]): Promise<PdfFile[]> => {
return Promise.all(selectedFiles
.filter(isPdf)
.map(toPdfFile));
return Promise.all(selectedFiles.filter(isPdf).map(toPdfFile))
}
/**
* A utility that transforms a drawing coordinate number into a CSS-compatible string
* @param coordinate
*/
const inPx = (coordinate: number): string => `${coordinate}px`;
const inPx = (coordinate: number): string => `${coordinate}px`
/**
* A utility that checks if a given file is of the pdf type
* @param file
*/
const isPdf = (file: File) => file.type.toLowerCase().includes('pdf');
const isPdf = (file: File) => file.type.toLowerCase().includes('pdf')
/**
* Reads the pdf file binaries
*/
const readPdf = (file: File): Promise<string> => {
return new Promise((resolve, reject) => {
const reader = new FileReader();
const reader = new FileReader()
reader.onload = (e: any) => {
const data = e.target.result
resolve(data)
};
}
reader.onerror = (err) => {
console.error('err', err)
reject(err)
};
}
reader.readAsDataURL(file);
reader.readAsDataURL(file)
})
}
@ -94,26 +93,28 @@ const readPdf = (file: File): Promise<string> => {
* @param data pdf file bytes
*/
const pdfToImages = async (data: any): Promise<PdfPage[]> => {
const images: string[] = [];
const pdf = await PDFJS.getDocument(data).promise;
const canvas = document.createElement("canvas");
const images: string[] = []
const pdf = await PDFJS.getDocument(data).promise
const canvas = document.createElement('canvas')
for (let i = 0; i < pdf.numPages; i++) {
const page = await pdf.getPage(i + 1);
const viewport = page.getViewport({ scale: SCALE });
const context = canvas.getContext("2d");
canvas.height = viewport.height;
canvas.width = viewport.width;
await page.render({ canvasContext: context!, viewport: viewport }).promise;
images.push(canvas.toDataURL());
const page = await pdf.getPage(i + 1)
const viewport = page.getViewport({ scale: SCALE })
const context = canvas.getContext('2d')
canvas.height = viewport.height
canvas.width = viewport.width
await page.render({ canvasContext: context!, viewport: viewport }).promise
images.push(canvas.toDataURL())
}
return Promise.resolve(images.map((image) => {
return Promise.resolve(
images.map((image) => {
return {
image,
drawnFields: []
}
}))
})
)
}
/**
@ -121,34 +122,37 @@ const pdfToImages = async (data: any): Promise<PdfPage[]> => {
* Returns an array of encoded images where each image is a representation
* of a PDF page with completed and signed marks from all users
*/
const addMarks = async (file: File, marksPerPage: {[key: string]: Mark[]}) => {
const p = await readPdf(file);
const pdf = await PDFJS.getDocument(p).promise;
const canvas = document.createElement("canvas");
const addMarks = async (
file: File,
marksPerPage: { [key: string]: Mark[] }
) => {
const p = await readPdf(file)
const pdf = await PDFJS.getDocument(p).promise
const canvas = document.createElement('canvas')
const images: string[] = [];
const images: string[] = []
for (let i = 0; i< pdf.numPages; i++) {
const page = await pdf.getPage(i+1)
const viewport = page.getViewport({ scale: SCALE });
const context = canvas.getContext("2d");
canvas.height = viewport.height;
canvas.width = viewport.width;
await page.render({ canvasContext: context!, viewport: viewport }).promise;
for (let i = 0; i < pdf.numPages; i++) {
const page = await pdf.getPage(i + 1)
const viewport = page.getViewport({ scale: SCALE })
const context = canvas.getContext('2d')
canvas.height = viewport.height
canvas.width = viewport.width
await page.render({ canvasContext: context!, viewport: viewport }).promise
marksPerPage[i].forEach(mark => draw(mark, context!))
marksPerPage[i]?.forEach((mark) => draw(mark, context!))
images.push(canvas.toDataURL());
images.push(canvas.toDataURL())
}
return Promise.resolve(images);
return Promise.resolve(images)
}
/**
* Utility to scale mark in line with the PDF-to-PNG scale
*/
const scaleMark = (mark: Mark): Mark => {
const { location } = mark;
const { location } = mark
return {
...mark,
location: {
@ -165,7 +169,7 @@ const scaleMark = (mark: Mark): Mark => {
* Utility to check if a Mark has value
* @param mark
*/
const hasValue = (mark: Mark): boolean => !!mark.value;
const hasValue = (mark: Mark): boolean => !!mark.value
/**
* Draws a Mark on a Canvas representation of a PDF Page
@ -173,14 +177,14 @@ const hasValue = (mark: Mark): boolean => !!mark.value;
* @param ctx a Canvas representation of a specific PDF Page
*/
const draw = (mark: Mark, ctx: CanvasRenderingContext2D) => {
const { location } = mark;
const { location } = mark
ctx!.font = FONT_SIZE + 'px ' + FONT_TYPE;
ctx!.fillStyle = 'black';
const textMetrics = ctx!.measureText(mark.value!);
const textX = location.left + (location.width - textMetrics.width) / 2;
const textY = location.top + (location.height + parseInt(ctx!.font)) / 2;
ctx!.fillText(mark.value!, textX, textY);
ctx!.font = FONT_SIZE + 'px ' + FONT_TYPE
ctx!.fillStyle = 'black'
const textMetrics = ctx!.measureText(mark.value!)
const textX = location.left + (location.width - textMetrics.width) / 2
const textY = location.top + (location.height + parseInt(ctx!.font)) / 2
ctx!.fillText(mark.value!, textX, textY)
}
/**
@ -188,7 +192,7 @@ const draw = (mark: Mark, ctx: CanvasRenderingContext2D) => {
* @param markedPdfPages
*/
const convertToPdfBlob = async (markedPdfPages: string[]): Promise<Blob> => {
const pdfDoc = await PDFDocument.create();
const pdfDoc = await PDFDocument.create()
for (const page of markedPdfPages) {
const pngImage = await pdfDoc.embedPng(page)
@ -203,7 +207,6 @@ const convertToPdfBlob = async (markedPdfPages: string[]): Promise<Blob> => {
const pdfBytes = await pdfDoc.save()
return new Blob([pdfBytes], { type: 'application/pdf' })
}
/**
@ -211,9 +214,12 @@ const convertToPdfBlob = async (markedPdfPages: string[]): Promise<Blob> => {
* @param arrayBuffer
* @param fileName
*/
const convertToPdfFile = async (arrayBuffer: ArrayBuffer, fileName: string): Promise<PdfFile> => {
const file = toFile(arrayBuffer, fileName);
return toPdfFile(file);
const convertToPdfFile = async (
arrayBuffer: ArrayBuffer,
fileName: string
): Promise<PdfFile> => {
const file = toFile(arrayBuffer, fileName)
return toPdfFile(file)
}
/**
@ -226,7 +232,7 @@ const groupMarksByPage = (marks: Mark[]) => {
return marks
.filter(hasValue)
.map(scaleMark)
.reduce<{[key: number]: Mark[]}>(byPage, {})
.reduce<{ [key: number]: Mark[] }>(byPage, {})
}
/**
@ -237,11 +243,10 @@ const groupMarksByPage = (marks: Mark[]) => {
* @param obj - accumulator in the reducer callback
* @param mark - current value, i.e. Mark being examined
*/
const byPage = (obj: { [key: number]: Mark[]}, mark: Mark) => {
const key = mark.location.page;
const curGroup = obj[key] ?? [];
return { ...obj, [key]: [...curGroup, mark]
}
const byPage = (obj: { [key: number]: Mark[] }, mark: Mark) => {
const key = mark.location.page
const curGroup = obj[key] ?? []
return { ...obj, [key]: [...curGroup, mark] }
}
export {
@ -252,5 +257,5 @@ export {
convertToPdfFile,
addMarks,
convertToPdfBlob,
groupMarksByPage,
groupMarksByPage
}

View File

@ -1,4 +1,5 @@
import { PdfFile } from '../types/drawing.ts'
import { CurrentUserFile } from '../types/file.ts'
export const compareObjects = (
obj1: object | null | undefined,
@ -72,11 +73,16 @@ export const timeout = (ms: number = 60000) => {
* @param files
* @param fileHashes
*/
export const getFilesWithHashes = (
files: { [filename: string ]: PdfFile },
export const getCurrentUserFiles = (
files: { [filename: string]: PdfFile },
fileHashes: { [key: string]: string | null }
) => {
return Object.entries(files).map(([filename, pdfFile]) => {
return { pdfFile, filename, hash: fileHashes[filename] }
): CurrentUserFile[] => {
return Object.entries(files).map(([filename, pdfFile], index) => {
return {
pdfFile,
filename,
id: index + 1,
...(!!fileHashes[filename] && { hash: fileHashes[filename]! })
}
})
}