67 lines
1.8 KiB
TypeScript
67 lines
1.8 KiB
TypeScript
import { jsPDF } from 'jspdf';
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import html2canvas from 'html2canvas';
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export const exportAsPdf = async (elementId: string, fileName: string, action: 'preview' | 'download'): Promise<void> => {
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const container = document.getElementById(elementId);
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if (!container) {
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console.error(`Element with id ${elementId} not found.`);
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return;
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}
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const pages = container.querySelectorAll('.report-page');
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if (pages.length === 0) {
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console.error('No report pages found');
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return;
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}
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try {
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const isDark = document.documentElement.classList.contains('dark');
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if (isDark) {
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document.documentElement.classList.remove('dark');
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}
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const pdf = new jsPDF({
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orientation: 'portrait',
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unit: 'mm',
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format: 'a4',
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});
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for (let i = 0; i < pages.length; i++) {
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const pageEl = pages[i] as HTMLElement;
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const canvas = await html2canvas(pageEl, {
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scale: 2, // Higher resolution
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useCORS: true,
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logging: false,
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backgroundColor: '#ffffff' // Ensure white background
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});
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const imgData = canvas.toDataURL('image/jpeg', 0.95);
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const pdfWidth = pdf.internal.pageSize.getWidth();
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const pdfHeight = (canvas.height * pdfWidth) / canvas.width;
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if (i > 0) {
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pdf.addPage();
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}
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pdf.addImage(imgData, 'JPEG', 0, 0, pdfWidth, pdfHeight);
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}
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if (isDark) {
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document.documentElement.classList.add('dark');
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}
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if (action === 'download') {
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pdf.save(`${fileName}.pdf`);
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} else {
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const pdfBlob = pdf.output('blob');
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const pdfUrl = URL.createObjectURL(pdfBlob);
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window.open(pdfUrl, '_blank');
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URL.revokeObjectURL(pdfUrl);
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}
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} catch (error) {
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console.error('Error generating PDF with html2canvas:', error);
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}
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}; |