94 lines
3.8 KiB
TypeScript
94 lines
3.8 KiB
TypeScript
import { showLoader, hideLoader, showAlert } from '../ui.js';
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import { downloadFile } from '../utils/helpers.js';
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import { state } from '../state.js';
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import { PDFName, PDFString } from 'pdf-lib';
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export async function editMetadata() {
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showLoader('Updating metadata...');
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try {
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// @ts-expect-error TS(2339) FIXME: Property 'value' does not exist on type 'HTMLEleme... Remove this comment to see the full error message
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state.pdfDoc.setTitle(document.getElementById('meta-title').value);
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// @ts-expect-error TS(2339) FIXME: Property 'value' does not exist on type 'HTMLEleme... Remove this comment to see the full error message
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state.pdfDoc.setAuthor(document.getElementById('meta-author').value);
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// @ts-expect-error TS(2339) FIXME: Property 'value' does not exist on type 'HTMLEleme... Remove this comment to see the full error message
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state.pdfDoc.setSubject(document.getElementById('meta-subject').value);
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// @ts-expect-error TS(2339) FIXME: Property 'value' does not exist on type 'HTMLEleme... Remove this comment to see the full error message
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state.pdfDoc.setCreator(document.getElementById('meta-creator').value);
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// @ts-expect-error TS(2339) FIXME: Property 'value' does not exist on type 'HTMLEleme... Remove this comment to see the full error message
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state.pdfDoc.setProducer(document.getElementById('meta-producer').value);
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// @ts-expect-error TS(2339) FIXME: Property 'value' does not exist on type 'HTMLEleme... Remove this comment to see the full error message
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const keywords = document.getElementById('meta-keywords').value;
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state.pdfDoc.setKeywords(
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keywords
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.split(',')
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.map((k: any) => k.trim())
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.filter(Boolean)
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);
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// @ts-expect-error TS(2339) FIXME: Property 'value' does not exist on type 'HTMLEleme... Remove this comment to see the full error message
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const creationDate = document.getElementById('meta-creation-date').value;
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if (creationDate) {
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state.pdfDoc.setCreationDate(new Date(creationDate));
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}
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// @ts-expect-error TS(2339) FIXME: Property 'value' does not exist on type 'HTMLEleme... Remove this comment to see the full error message
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const modDate = document.getElementById('meta-mod-date').value;
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if (modDate) {
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state.pdfDoc.setModificationDate(new Date(modDate));
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} else {
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state.pdfDoc.setModificationDate(new Date());
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}
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const infoDict = state.pdfDoc.getInfoDict();
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const standardKeys = new Set([
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'Title',
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'Author',
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'Subject',
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'Keywords',
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'Creator',
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'Producer',
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'CreationDate',
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'ModDate',
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]);
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const allKeys = infoDict
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.keys()
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.map((key: any) => key.asString().substring(1)); // Clean keys
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allKeys.forEach((key: any) => {
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if (!standardKeys.has(key)) {
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infoDict.delete(PDFName.of(key));
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}
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});
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const customKeys = document.querySelectorAll('.custom-meta-key');
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const customValues = document.querySelectorAll('.custom-meta-value');
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customKeys.forEach((keyInput, index) => {
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// @ts-expect-error TS(2339) FIXME: Property 'value' does not exist on type 'Element'.
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const key = keyInput.value.trim();
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// @ts-expect-error TS(2339) FIXME: Property 'value' does not exist on type 'Element'.
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const value = customValues[index].value.trim();
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if (key && value) {
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// Now we add the fields to a clean slate
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infoDict.set(PDFName.of(key), PDFString.of(value));
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}
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});
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const newPdfBytes = await state.pdfDoc.save();
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downloadFile(
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new Blob([newPdfBytes], { type: 'application/pdf' }),
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'metadata-edited.pdf'
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);
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} catch (e) {
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console.error(e);
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showAlert(
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'Error',
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'Could not update metadata. Please check that date formats are correct.'
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);
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} finally {
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hideLoader();
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}
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}
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