Iisyourdad
42 lines
1.6 KiB
HTML
42 lines
1.6 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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<title>Select region</title>
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<style>
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html, body { margin: 0; height: 100%; cursor: crosshair; background: rgba(0,0,0,0.25); user-select: none; }
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#hint { position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
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background: rgba(17,24,39,.9); color: #fff; padding: 6px 14px; border-radius: 6px;
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font: 13px system-ui, sans-serif; pointer-events: none; }
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#sel { position: fixed; border: 2px solid #2563eb; background: rgba(37,99,235,.15); display: none; }
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</style>
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</head>
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<body>
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<div id="hint">Drag to select a region — Esc to cancel</div>
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<div id="sel"></div>
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<script>
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const sel = document.getElementById('sel');
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let start = null;
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function rectFrom(a, b) {
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return { x: Math.min(a.x, b.x), y: Math.min(a.y, b.y), w: Math.abs(a.x - b.x), h: Math.abs(a.y - b.y) };
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}
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window.addEventListener('mousedown', (e) => { start = { x: e.clientX, y: e.clientY }; });
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window.addEventListener('mousemove', (e) => {
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if (!start) return;
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const r = rectFrom(start, { x: e.clientX, y: e.clientY });
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sel.style.display = 'block';
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sel.style.left = r.x + 'px'; sel.style.top = r.y + 'px';
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sel.style.width = r.w + 'px'; sel.style.height = r.h + 'px';
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});
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window.addEventListener('mouseup', (e) => {
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if (!start) return;
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const r = rectFrom(start, { x: e.clientX, y: e.clientY });
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window.regionPicker.done(r.w > 3 && r.h > 3 ? r : null);
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});
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window.addEventListener('keydown', (e) => {
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if (e.key === 'Escape') window.regionPicker.done(null);
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});
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</script>
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</body>
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</html>
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