98 lines
2.5 KiB
TypeScript
98 lines
2.5 KiB
TypeScript
// Copyright 2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import classNames from 'classnames';
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import { noop } from 'lodash';
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import type { ReactElement } from 'react';
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import React, { useEffect, useState } from 'react';
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import animationData from '../../images/lottie-animations/CallingSpeakingIndicator.json';
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import { Lottie } from './Lottie';
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const SPEAKING_LINGER_MS = 100;
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const SPEAKING_BACKGROUND_LINGER_MS = 500;
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const BASE_CLASS_NAME = 'CallingAudioIndicator';
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const CONTENT_CLASS_NAME = `${BASE_CLASS_NAME}__content`;
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enum SpeakingState {
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None = 'None',
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Speaking = 'Speaking',
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BackgroundOnly = 'BackgroundOnly',
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}
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export function CallingAudioIndicator({
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hasAudio,
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isSpeaking,
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}: Readonly<{ hasAudio: boolean; isSpeaking: boolean }>): ReactElement {
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const [speakingState, setSpeakingState] = useState(
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isSpeaking ? SpeakingState.Speaking : SpeakingState.None
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);
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useEffect(() => {
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if (isSpeaking) {
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setSpeakingState(SpeakingState.Speaking);
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return noop;
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}
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if (speakingState === SpeakingState.None) {
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return noop;
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}
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let timeout: NodeJS.Timeout;
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if (speakingState === SpeakingState.Speaking) {
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timeout = setTimeout(() => {
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setSpeakingState(SpeakingState.BackgroundOnly);
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}, SPEAKING_LINGER_MS);
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} else if (speakingState === SpeakingState.BackgroundOnly) {
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timeout = setTimeout(() => {
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setSpeakingState(SpeakingState.None);
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}, SPEAKING_BACKGROUND_LINGER_MS);
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}
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return () => {
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clearTimeout(timeout);
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};
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}, [isSpeaking, speakingState]);
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if (!hasAudio) {
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return (
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<div
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className={classNames(
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BASE_CLASS_NAME,
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`${BASE_CLASS_NAME}--with-content`
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)}
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>
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<div
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className={classNames(
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CONTENT_CLASS_NAME,
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`${CONTENT_CLASS_NAME}--muted`
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)}
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/>
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</div>
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);
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}
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if (speakingState !== SpeakingState.None) {
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let maybeAnimation: React.ReactElement | undefined;
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if (speakingState === SpeakingState.Speaking) {
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maybeAnimation = (
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<Lottie animationData={animationData} className={CONTENT_CLASS_NAME} />
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);
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}
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return (
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<div
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className={classNames(
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BASE_CLASS_NAME,
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`${BASE_CLASS_NAME}--with-content`
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)}
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>
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{maybeAnimation}
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</div>
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);
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}
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// Render an empty spacer so that names don't move around.
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return <div className={BASE_CLASS_NAME} />;
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}
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