mikael-lovqvists-claude-agent
b98534214f
Camera-based barcode scanner using ZXing for decoding. Requests wide video (256x2048), rotates to landscape for decoding, applies contrast boost and tries both HybridBinarizer and GlobalHistogramBinarizer. Includes camera selector, manual/auto focus controls, and focus slider. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
171 lines
3.4 KiB
HTML
171 lines
3.4 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
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<title>Barcode Scanner</title>
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<style>
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*, *::before, *::after {
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box-sizing: border-box;
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margin: 0;
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padding: 0;
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}
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:root {
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--accent: #00e87a;
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--dim: #5a6475;
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--surface: #12161c;
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}
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html, body {
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width: 100%;
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height: 100%;
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background: #000;
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font-family: 'Courier New', monospace;
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overflow: hidden;
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}
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#app {
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display: flex;
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flex-direction: column;
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width: 100%;
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height: 100%;
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}
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#camera-view {
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position: relative;
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width: 100%;
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flex: 1;
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background: #000;
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}
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video {
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position: absolute;
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inset: 0;
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width: 100%;
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height: 100%;
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object-fit: contain;
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}
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/* Transparent overlay — only draws scan lines */
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#overlay {
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position: absolute;
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inset: 0;
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width: 100%;
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height: 100%;
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}
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#debug {
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position: absolute;
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top: 6px;
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left: 8px;
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font-size: 11px;
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color: rgba(255,255,255,0.6);
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text-shadow: 0 1px 2px #000;
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pointer-events: none;
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line-height: 1.5;
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}
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/* Bottom result panel */
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#bottom-panel {
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flex-shrink: 0;
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display: flex;
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flex-direction: column;
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align-items: center;
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gap: 8px;
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padding: 12px 16px 18px;
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background: var(--surface);
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border-top: 1px solid #1e2530;
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}
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#result {
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width: 100%;
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min-height: 44px;
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padding: 10px 14px;
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border-radius: 8px;
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background: #181e28;
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border: 1px solid #1e2a38;
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font-size: 14px;
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color: var(--dim);
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text-align: center;
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word-break: break-all;
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transition: color 0.15s, border-color 0.15s, background 0.15s;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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#result.found {
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color: var(--accent);
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border-color: var(--accent);
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background: #0d1f15;
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font-weight: bold;
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font-size: 16px;
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}
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#result.error {
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color: #ff5555;
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border-color: #ff5555;
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}
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#focus-row {
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display: none;
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width: 100%;
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align-items: center;
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gap: 8px;
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color: #dce4ef;
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font-size: 13px;
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}
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#focus-slider {
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flex: 1;
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accent-color: var(--accent);
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}
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#focus-val {
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min-width: 40px;
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text-align: right;
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color: var(--accent);
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}
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#start-btn {
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padding: 13px 30px;
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background: var(--accent);
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color: #000;
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border: none;
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border-radius: 8px;
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font-family: inherit;
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font-size: 15px;
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font-weight: bold;
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cursor: pointer;
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}
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</style>
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</head>
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<body>
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<div id="app">
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<div id="camera-view">
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<video id="video" autoplay playsinline muted></video>
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<canvas id="overlay"></canvas>
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<div id="debug"></div>
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</div>
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<div id="bottom-panel">
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<div id="cam-info" style="width:100%;font-size:11px;color:#5a6475;word-break:break-all;"></div>
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<div id="result">Point camera at a barcode</div>
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<div id="focus-row">
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<label style="display:flex;align-items:center;gap:4px;cursor:pointer;">
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<input id="focus-auto" type="checkbox" checked>
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Auto
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</label>
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<input id="focus-slider" type="range" min="0" max="1.62" step="0.01" value="0.3" disabled>
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<span id="focus-val">0.30m</span>
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</div>
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<select id="camera-select" style="display:none; width:100%; padding:8px; background:#181e28; color:#dce4ef; border:1px solid #1e2a38; border-radius:8px; font-family:inherit;"></select>
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<button id="start-btn">Start Camera</button>
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</div>
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</div>
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<script src="vendor/zxing.min.js"></script>
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<script type="module" src="app.mjs"></script>
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</body>
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</html>
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