`;
}
/**
* Generates and downloads a PDF of the model
*/
async function fmg_downloadPDF() {
if (!fmg_data.concept) {
alert("Please enter a central concept before downloading.");
return;
}
if (typeof jspdf === 'undefined' || typeof html2canvas === 'undefined') {
alert("Error: PDF libraries failed to load.");
return;
}
fmg_renderPdfClone();
const { jsPDF } = window.jspdf;
try {
// Target the specific grid clone for capture
const contentDiv = fmg_pdfRenderClone.querySelector('.pdf-content');
if (!contentDiv) return;
const canvas = await html2canvas(contentDiv, {
scale: 1.5,
useCORS: true,
backgroundColor: '#ffffff'
});
const imgData = canvas.toDataURL('image/png');
const imgProps = { width: canvas.width, height: canvas.height };
const pdf = new jsPDF({ orientation: 'p', unit: 'pt', format: 'a4' });
const pdfWidth = pdf.internal.pageSize.getWidth();
const pdfHeight = pdf.internal.pageSize.getHeight();
const margin = 40;
const contentWidth = pdfWidth - (margin * 2);
const contentHeight = (contentWidth * imgProps.height) / imgProps.width;
let heightLeft = contentHeight;
let position = 0;
pdf.addImage(imgData, 'PNG', margin, position + margin, contentWidth, contentHeight);
heightLeft -= (pdfHeight - margin * 2);
while (heightLeft > 0) {
position -= (pdfHeight - margin * 2);
pdf.addPage();
pdf.addImage(imgData, 'PNG', margin, position + margin, contentWidth, contentHeight);
heightLeft -= (pdfHeight - margin * 2);
}
const safeName = (fmg_data.concept || 'frayer_model').replace(/[^a-z0-9]/gi, '_').toLowerCase();
pdf.save(`${safeName}_Frayer_Model.pdf`);
} catch (error) {
console.error("PDF generation failed:", error);
alert("An error occurred while generating the PDF.");
}
}
// --- EVENT LISTENERS ---
// Tab link clicks
fmg_tabLinks.forEach((link, index) => {
link.addEventListener('click', () => fmg_switchTab(index));
});
// Next/Prev button clicks
if (fmg_prevButton) {
fmg_prevButton.addEventListener('click', () => {
if (fmg_currentTab > 0) fmg_switchTab(fmg_currentTab - 1);
});
}
if (fmg_nextButton) {
fmg_nextButton.addEventListener('click', () => {
if (fmg_currentTab === fmg_tabLinks.length - 1) {
fmg_updateDataFromConfig();
fmg_switchTab(0);
} else {
if (fmg_currentTab < fmg_tabLinks.length - 1) fmg_switchTab(fmg_currentTab + 1);
}
});
}
// PDF download
if (fmg_downloadPdfButton) {
fmg_downloadPdfButton.addEventListener('click', fmg_downloadPDF);
}
// --- Initialization ---
fmg_renderConfig();
fmg_renderDashboard();
// Set initial tab state
fmg_tabPanes.forEach((pane, index) => {
pane.classList.toggle('hidden', index !== 0);
pane.classList.toggle('fmg-active', index === 0);
});
fmg_tabLinks.forEach((link, index) => {
TAB_CLASSES.active.forEach(cls => link.classList.remove(cls));
TAB_CLASSES.inactive.forEach(cls => link.classList.remove(cls));
if (index === 0) {
TAB_CLASSES.active.forEach(cls => link.classList.add(cls));
} else {
TAB_CLASSES.inactive.forEach(cls => link.classList.add(cls));
}
});
});
