54 lines
1.6 KiB
TypeScript
54 lines
1.6 KiB
TypeScript
import { ClassicPreset } from 'rete';
|
|
import { BaseWorkflowNode } from './base-node';
|
|
import { pdfSocket } from '../sockets';
|
|
import type { SocketData } from '../types';
|
|
import { requirePdfInput, extractAllPdfs } from '../types';
|
|
import { downloadFile } from '../../utils/helpers.js';
|
|
import { loadPyMuPDF } from '../../utils/pymupdf-loader.js';
|
|
|
|
export class PdfToSvgNode extends BaseWorkflowNode {
|
|
readonly category = 'Output' as const;
|
|
readonly icon = 'ph-file-code';
|
|
readonly description = 'Convert PDF pages to SVG';
|
|
|
|
constructor() {
|
|
super('PDF to SVG');
|
|
this.addInput('pdf', new ClassicPreset.Input(pdfSocket, 'PDF'));
|
|
}
|
|
|
|
async data(
|
|
inputs: Record<string, SocketData[]>
|
|
): Promise<Record<string, SocketData>> {
|
|
const pdfInputs = requirePdfInput(inputs, 'PDF to SVG');
|
|
const allPdfs = extractAllPdfs(pdfInputs);
|
|
const pymupdf = await loadPyMuPDF();
|
|
|
|
const JSZip = (await import('jszip')).default;
|
|
const zip = new JSZip();
|
|
|
|
for (const pdf of allPdfs) {
|
|
const blob = new Blob([new Uint8Array(pdf.bytes)], {
|
|
type: 'application/pdf',
|
|
});
|
|
const doc = await pymupdf.open(blob);
|
|
try {
|
|
const pageCount = doc.pageCount;
|
|
const prefix =
|
|
allPdfs.length > 1 ? pdf.filename.replace(/\.pdf$/i, '') + '/' : '';
|
|
for (let i = 0; i < pageCount; i++) {
|
|
const page = doc.getPage(i);
|
|
const svg = page.toSvg();
|
|
zip.file(`${prefix}page_${i + 1}.svg`, svg);
|
|
}
|
|
} finally {
|
|
doc.close();
|
|
}
|
|
}
|
|
|
|
const zipBlob = await zip.generateAsync({ type: 'blob' });
|
|
downloadFile(zipBlob, 'svg_pages.zip');
|
|
|
|
return {};
|
|
}
|
|
}
|