回答編集履歴
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サンプルコードの追加
test
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@@ -7,3 +7,145 @@
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HTMLMediaElement: seeked event - Web APIs | MDN
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[https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/seeked_event](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/seeked_event)
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---
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React 使ってますけど試しに書いてみました。
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React 使おうが使わまいが `handleTimeUpdate` でやってることは変わらないと思います。
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[https://codepen.io/og24715/pen/ymeXeK?editors=0010](https://codepen.io/og24715/pen/ymeXeK?editors=0010)
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```const videoUrl = 'https://sample-videos.com/video123/mp4/240/big_buck_bunny_240p_1mb.mp4';
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const VideoPlayer = ({ a, b }) => {
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const handleTimeUpdate = (e) => {
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const time = e.target.currentTime;
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if (b < time) {
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e.target.pause();
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e.target.currentTime = b;
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} else if (time < a) {
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e.target.pause();
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e.target.currentTime = a;
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}
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};
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return (
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<video
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src={videoUrl}
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controls
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onTimeUpdate={handleTimeUpdate} />
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);
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};
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const App = () => {
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const [a, setA] = React.useState(0);
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const [b, setB] = React.useState(13);
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const handleChangeA = (e) => setA(e.target.value);
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const handleChangeB = (e) => setB(e.target.value);
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return (
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<div>
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<VideoPlayer a={a} b={b} />
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<form>
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<p>
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A
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<input
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type="range"
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value={a}
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min={0}
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max={13}
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onChange={handleChangeA} />
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{a}
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</p>
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<p>
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B
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<input
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type="range"
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value={b}
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min={0}
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max={13}
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onChange={handleChangeB} />
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{b}
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</p>
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</form>
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</div>
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);
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}
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ReactDOM.render(
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<App />,
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document.querySelector('#root'),
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);
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```
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