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67 lines
1.5 KiB
67 lines
1.5 KiB
<!-- Licensed under a BSD license. See license.html for license -->
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<!DOCTYPE html>
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<html>
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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, user-scalable=yes">
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<title>Three.js - TabIndex</title>
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<style>
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.spread {
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display: flex;
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font-size: x-small;
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text-align: center;
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}
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canvas {
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margin: 5px;
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background: pink;
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}
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#c3:focus {
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outline: none;
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}
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</style>
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</head>
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<body>
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<div class="spread">
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<div>
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<canvas width="100" height="100" id="c1"></canvas>
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<div>tabindex not set</div>
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</div>
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<div>
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<canvas width="100" height="100" id="c2" tabindex="0"></canvas>
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<div>focus style not set</div>
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</div>
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<div>
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<canvas width="100" height="100" id="c3" tabindex="1"></canvas>
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<div>tabindex and<br/>focus style set</div>
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</div>
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</div>
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</body>
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<script type="module">
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document.querySelectorAll('canvas').forEach((canvas) => {
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const ctx = canvas.getContext('2d');
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function draw(str) {
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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ctx.textAlign = 'center';
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ctx.textBaseline = 'middle';
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ctx.fillText(str, canvas.width / 2, canvas.height / 2);
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}
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draw(canvas.id);
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canvas.addEventListener('focus', () => {
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draw('has focus press a key');
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});
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canvas.addEventListener('blur', () => {
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draw('lost focus');
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});
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canvas.addEventListener('keydown', (e) => {
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draw(`keyCode: ${e.keyCode}`);
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});
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});
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</script>
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</html>
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