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Fix ticket print not opening (variable order) and add error handling
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consultoria-as
2026-07-18 17:14:13 +00:00
parent ee5075ea2e
commit 667cd3b1eb
2 changed files with 47 additions and 38 deletions
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83
pos/static/js/pos.js
View File

@@ -1660,41 +1660,39 @@ const POS = (() => {
function printTicket() {
const src = document.getElementById('ticketContent');
if (!src) return;
if (!src) { console.warn('printTicket: ticketContent not found'); return; }
// Paper width: 58 mm -> 48 mm printable; 80 mm -> 72 mm printable.
try {
// Paper width: 58 mm -> 48 mm printable; 80 mm -> 72 mm printable.
const paperWidth = parseInt(rc('paper_width', '80'), 10) || 80;
const is58 = paperWidth === 58;
const printWidth = is58 ? 48 : 72;
const fontSize = is58 ? '12pt' : '14pt';
const smallFont = is58 ? '10pt' : '12pt';
const nameMax = is58 ? '20mm' : '38mm';
let iframe = document.getElementById('ticketPrintFrame');
if (!iframe) {
iframe = document.createElement('iframe');
iframe.id = 'ticketPrintFrame';
iframe.style.position = 'fixed';
iframe.style.left = '-9999px';
iframe.style.top = '0';
iframe.style.width = printWidth + 'mm';
iframe.style.border = '0';
document.body.appendChild(iframe);
}
let iframe = document.getElementById('ticketPrintFrame');
if (!iframe) {
iframe = document.createElement('iframe');
iframe.id = 'ticketPrintFrame';
iframe.style.position = 'fixed';
iframe.style.left = '-9999px';
iframe.style.top = '0';
iframe.style.width = printWidth + 'mm';
iframe.style.border = '0';
document.body.appendChild(iframe);
}
const paperWidth = parseInt(rc('paper_width', '80'), 10) || 80;
const is58 = paperWidth === 58;
// Render at the real printable width so text is not scaled down by the driver.
const printWidth = is58 ? 48 : 72;
const fontSize = is58 ? '12pt' : '14pt';
const smallFont = is58 ? '10pt' : '12pt';
const nameMax = is58 ? '20mm' : '38mm';
const doc = iframe.contentDocument || iframe.contentWindow.document;
doc.open();
doc.write(`<!doctype html>
const doc = iframe.contentDocument || iframe.contentWindow.document;
doc.open();
doc.write(`<!doctype html>
<html>
<head>
<meta charset="utf-8">
<style>
@page { margin: 0; size: ${printWidth}mm auto; }
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: auto; overflow: visible; background: #fff; color: #000; font-family: 'Courier New', Courier, 'Lucida Console', monospace; font-size: ${fontSize}; line-height: 1.55; -webkit-font-smoothing: none; -moz-osx-font-smoothing: unset; text-rendering: geometricPrecision; image-rendering: pixelated; }
html, body { margin: 0; padding: 0; height: auto; overflow: visible; background: #fff; color: #000; font-family: 'Courier New', Courier, 'Lucida Console', monospace; font-size: ${fontSize}; line-height: 1.55; -webkit-font-smoothing: none; -moz-osx-font-smoothing: unset; text-rendering: geometricPrecision; }
body { width: ${printWidth}mm; }
.ticket { width: ${printWidth}mm; padding: 3mm 2.5mm 4mm; border: none !important; box-shadow: none !important; }
.item-line-wide { display: grid !important; grid-template-columns: ${is58 ? '9mm 1fr auto' : '10mm 1fr auto auto'} !important; gap: 2mm; font-size: ${fontSize}; margin-bottom: 2.5mm; padding-left: 1mm; align-items: start; }
@@ -1710,24 +1708,35 @@ const POS = (() => {
.divider-double { border: none; border-top: 2px solid #333; margin: 5px 0; }
.footer-section { text-align: center; margin-top: 8px; font-size: ${smallFont}; color: #000; line-height: 1.45; }
.payment-section, .total-section { width: 100%; }
img { max-width: 100%; height: auto; image-rendering: pixelated; }
img { max-width: 100%; height: auto; }
</style>
</head>
<body>${src.innerHTML}</body>
</html>`);
doc.close();
doc.close();
// Measure real content height and set exact page size (avoids phantom 3276 mm).
const bodyEl = doc.body;
const heightPx = Math.max(bodyEl.scrollHeight, bodyEl.offsetHeight);
const heightMm = Math.ceil((heightPx * 25.4 / 96) + 5);
// Measure real content height and set exact page size (avoids phantom 3276 mm).
const bodyEl = doc.body;
const heightPx = Math.max(bodyEl.scrollHeight, bodyEl.offsetHeight);
const heightMm = Math.ceil((heightPx * 25.4 / 96) + 5);
const exactPage = doc.createElement('style');
exactPage.textContent = `@page { margin: 0; size: ${printWidth}mm ${heightMm}mm; }`;
doc.head.appendChild(exactPage);
const exactPage = doc.createElement('style');
exactPage.textContent = `@page { margin: 0; size: ${printWidth}mm ${heightMm}mm; }`;
doc.head.appendChild(exactPage);
iframe.contentWindow.focus();
setTimeout(() => { iframe.contentWindow.print(); }, 150);
iframe.contentWindow.focus();
setTimeout(() => {
try {
iframe.contentWindow.print();
} catch (e) {
console.error('printTicket: iframe.print failed', e);
window.print();
}
}, 200);
} catch (e) {
console.error('printTicket error:', e);
alert('No se pudo preparar la impresion del ticket. Revise la consola.');
}
}
// ─── Thermal Printing ─────────────────

2
pos/static/pwa/sw.js
View File

@@ -6,7 +6,7 @@
// The fetch handler normalizes static asset URLs (strips ?v= query strings)
// so templates can use cache-busting query params freely.
const VERSION = 50;
const VERSION = 51;
const CACHE_NAME = 'nexus-pos-v' + VERSION;
const APP_SHELL = [