131 lines
4.5 KiB
JavaScript
131 lines
4.5 KiB
JavaScript
document.addEventListener('DOMContentLoaded', () => {
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// --- GLOBALS ---
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const qrContainer = document.getElementById('qr-container');
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const downloadBtn = document.getElementById('btn-download');
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// Inputs
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const modeSelector = document.getElementById('mode-selector');
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const optEcc = document.getElementById('opt-ecc');
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const optSize = document.getElementById('opt-size');
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const optFg = document.getElementById('opt-fg');
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const optBg = document.getElementById('opt-bg');
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// Hex Labels (for display)
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const hexFg = document.getElementById('hex-fg');
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const hexBg = document.getElementById('hex-bg');
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let qrcodeObj = null;
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let debounceTimer;
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// --- LOGIC ---
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function createQRInstance() {
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qrContainer.innerHTML = '';
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// Validation: Clamp size to prevent crashing browser
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let size = parseInt(optSize.value);
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if (isNaN(size) || size < 64) size = 64;
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if (size > 4000) size = 4000;
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const ecc = QRCode.CorrectLevel[optEcc.value];
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const colorDark = optFg.value;
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const colorLight = optBg.value;
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// Update Hex Labels
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hexFg.textContent = colorDark;
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hexBg.textContent = colorLight;
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qrcodeObj = new QRCode(qrContainer, {
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width: size,
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height: size,
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colorDark : colorDark,
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colorLight : colorLight,
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correctLevel : ecc
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});
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updateQR();
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}
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function getDataString() {
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const mode = modeSelector.value;
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if (mode === 'text') {
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return document.getElementById('inp-text').value;
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} else if (mode === 'wifi') {
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const ssid = document.getElementById('inp-wifi-ssid').value;
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const pass = document.getElementById('inp-wifi-pass').value;
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const type = document.getElementById('inp-wifi-type').value;
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if (!ssid) return '';
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const cleanSSID = ssid.replace(/([\\;,:])/g, '\\$1');
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const cleanPass = pass.replace(/([\\;,:])/g, '\\$1');
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return `WIFI:S:${cleanSSID};T:${type};P:${cleanPass};;`;
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} else if (mode === 'email') {
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const to = document.getElementById('inp-email-to').value;
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const sub = document.getElementById('inp-email-sub').value;
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const body = document.getElementById('inp-email-body').value;
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if (!to) return '';
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return `mailto:${to}?subject=${encodeURIComponent(sub)}&body=${encodeURIComponent(body)}`;
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}
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return '';
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}
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function updateQR() {
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if (!qrcodeObj) return;
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const data = getDataString();
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if (!data || data.trim() === '') {
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qrcodeObj.clear();
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downloadBtn.disabled = true;
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return;
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}
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downloadBtn.disabled = false;
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qrcodeObj.makeCode(data);
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}
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// --- EVENT LISTENERS ---
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// 1. Config Changes (Re-create instance)
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// We listen to 'change' for colors (happens when picker closes)
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// and 'input' (happens while dragging) depending on preference.
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// 'input' is smoother but more CPU intensive. Let's use 'input'.
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[optEcc, optSize, optFg, optBg].forEach(el => {
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el.addEventListener('input', () => {
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// Debounce the recreation slightly to prevent lag during color dragging
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clearTimeout(debounceTimer);
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debounceTimer = setTimeout(createQRInstance, 100);
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});
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});
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// 2. Mode Switching
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modeSelector.addEventListener('change', (e) => {
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const newMode = e.target.value;
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document.querySelectorAll('.input-form').forEach(f => f.classList.remove('active'));
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document.getElementById(`form-${newMode}`).classList.add('active');
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updateQR();
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});
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// 3. Data Entry (Text, WiFi, Email)
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document.querySelectorAll('.input-form').forEach(form => {
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form.addEventListener('input', () => {
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clearTimeout(debounceTimer);
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debounceTimer = setTimeout(updateQR, 300);
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});
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});
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// 4. Download
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downloadBtn.addEventListener('click', () => {
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const img = qrContainer.querySelector('img');
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if (img && img.src) {
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const link = document.createElement('a');
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link.href = img.src;
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link.download = `qrcode-${Date.now()}.png`;
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document.body.appendChild(link);
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link.click();
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document.body.removeChild(link);
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}
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});
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// Init
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createQRInstance();
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});
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