75 lines
1.9 KiB
TypeScript
75 lines
1.9 KiB
TypeScript
import { state } from "./state";
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import { absoluteTimeFromRatio, getBounds } from "./timeline";
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import {
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showControls,
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toggleMute,
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togglePlayPause,
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toggleFullscreen,
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seekBy,
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setVolume,
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} from "./controls";
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import { saveProgress } from "./progress";
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/**
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* Sets up keyboard shortcuts for player control.
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* Ignores input/textarea to allow typing.
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*/
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export const setupKeyboard = (): void => {
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document.addEventListener("keydown", (e) => {
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const target = e.target as HTMLElement;
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// ignore when typing in form fields
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if (target.tagName === "INPUT" || target.tagName === "TEXTAREA" || target.isContentEditable)
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return;
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switch (e.code) {
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case "Space":
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case "KeyK":
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e.preventDefault();
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togglePlayPause();
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showControls();
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void saveProgress();
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break;
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case "ArrowLeft":
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case "KeyJ":
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e.preventDefault();
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seekBy(-10);
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break;
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case "ArrowRight":
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case "KeyL":
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e.preventDefault();
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seekBy(10);
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break;
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case "ArrowUp":
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e.preventDefault();
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setVolume(state.elements.video.volume + 0.05);
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showControls();
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break;
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case "ArrowDown":
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e.preventDefault();
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setVolume(state.elements.video.volume - 0.05);
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showControls();
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break;
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case "KeyM":
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e.preventDefault();
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toggleMute();
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showControls();
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break;
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case "KeyF":
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e.preventDefault();
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toggleFullscreen();
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showControls();
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break;
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default:
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// number keys 0-9: jump to 0%-90% of video
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if (/^\d$/.test(e.key)) {
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const b = getBounds();
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if (b.duration > 0) {
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e.preventDefault();
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state.elements.video.currentTime = absoluteTimeFromRatio(parseInt(e.key, 10) / 10);
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showControls();
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}
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}
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}
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});
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};
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