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WIP: Migrate AudioManager in Svelte (#1325)

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* Migrate AudioManager in Svelte

* use import type when needed
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GRL78 2021-08-06 09:11:17 +02:00 • committed by GitHub
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9 changed files with 258 additions and 288 deletions
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188
front/src/WebRtc/AudioManager.ts
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@ -1,188 +0,0 @@
import {HtmlUtils} from "./HtmlUtils";
import {isUndefined} from "generic-type-guard";
import {localUserStore} from "../Connexion/LocalUserStore";
enum audioStates {
closed = 0,
loading = 1,
playing = 2
}
const audioPlayerDivId = "audioplayer";
const audioPlayerCtrlId = "audioplayerctrl";
const audioPlayerVolId = "audioplayer_volume";
const audioPlayerMuteId = "audioplayer_volume_icon_playing";
const animationTime = 500;
class AudioManager {
private opened = audioStates.closed;
private audioPlayerDiv: HTMLDivElement;
private audioPlayerCtrl: HTMLDivElement;
private audioPlayerElem: HTMLAudioElement | undefined;
private audioPlayerVol: HTMLInputElement;
private audioPlayerMute: HTMLInputElement;
private volume = 1;
private muted = false;
private decreaseWhileTalking = true;
private volumeReduced = false;
constructor() {
this.audioPlayerDiv = HtmlUtils.getElementByIdOrFail<HTMLDivElement>(audioPlayerDivId);
this.audioPlayerCtrl = HtmlUtils.getElementByIdOrFail<HTMLDivElement>(audioPlayerCtrlId);
this.audioPlayerVol = HtmlUtils.getElementByIdOrFail<HTMLInputElement>(audioPlayerVolId);
this.audioPlayerMute = HtmlUtils.getElementByIdOrFail<HTMLInputElement>(audioPlayerMuteId);
this.volume = localUserStore.getAudioPlayerVolume();
this.audioPlayerVol.value = '' + this.volume;
this.muted = localUserStore.getAudioPlayerMuted();
if (this.muted) {
this.audioPlayerMute.classList.add('muted');
}
}
public playAudio(url: string|number|boolean, mapDirUrl: string, volume: number|undefined, loop=false): void {
const audioPath = url as string;
let realAudioPath = '';
if (audioPath.indexOf('://') > 0) {
// remote file or stream
realAudioPath = audioPath;
} else {
// local file, include it relative to map directory
realAudioPath = mapDirUrl + '/' + url;
}
this.loadAudio(realAudioPath, volume);
if (loop) {
this.loop();
}
}
private close(): void {
this.audioPlayerCtrl.classList.remove('loading');
this.audioPlayerCtrl.classList.add('hidden');
this.opened = audioStates.closed;
}
private load(): void {
this.audioPlayerCtrl.classList.remove('hidden');
this.audioPlayerCtrl.classList.add('loading');
this.opened = audioStates.loading;
}
private open(): void {
this.audioPlayerCtrl.classList.remove('hidden', 'loading');
this.opened = audioStates.playing;
}
private changeVolume(talking = false): void {
if (isUndefined(this.audioPlayerElem)) {
return;
}
const reduceVolume = talking && this.decreaseWhileTalking;
if (reduceVolume && !this.volumeReduced) {
this.volume *= 0.5;
} else if (!reduceVolume && this.volumeReduced) {
this.volume *= 2.0;
}
this.volumeReduced = reduceVolume;
this.audioPlayerElem.volume = this.volume;
this.audioPlayerVol.value = '' + this.volume;
this.audioPlayerElem.muted = this.muted;
}
private setVolume(volume: number): void {
this.volume = volume;
localUserStore.setAudioPlayerVolume(volume);
}
private loadAudio(url: string, volume: number|undefined): void {
this.load();
/* Solution 1, remove whole audio player */
this.audioPlayerDiv.innerHTML = ''; // necessary, if switching from one audio context to another! (else both streams would play simultaneously)
this.audioPlayerElem = document.createElement('audio');
this.audioPlayerElem.id = 'audioplayerelem';
this.audioPlayerElem.controls = false;
this.audioPlayerElem.preload = 'none';
const srcElem = document.createElement('source');
srcElem.type = "audio/mp3";
srcElem.src = url;
this.audioPlayerElem.append(srcElem);
this.audioPlayerDiv.append(this.audioPlayerElem);
this.volume = volume ? Math.min(volume, this.volume) : this.volume;
this.changeVolume();
this.audioPlayerElem.play();
const muteElem = HtmlUtils.getElementByIdOrFail<HTMLInputElement>('audioplayer_mute');
muteElem.onclick = (ev: Event) => {
this.muted = !this.muted;
this.changeVolume();
localUserStore.setAudioPlayerMuted(this.muted);
if (this.muted) {
this.audioPlayerMute.classList.add('muted');
} else {
this.audioPlayerMute.classList.remove('muted');
}
}
this.audioPlayerVol.oninput = (ev: Event)=> {
this.setVolume(parseFloat((<HTMLInputElement>ev.currentTarget).value));
this.changeVolume();
(<HTMLInputElement>ev.currentTarget).blur();
}
const decreaseElem = HtmlUtils.getElementByIdOrFail<HTMLInputElement>('audioplayer_decrease_while_talking');
decreaseElem.oninput = (ev: Event)=> {
this.decreaseWhileTalking = (<HTMLInputElement>ev.currentTarget).checked;
this.changeVolume();
}
this.open();
}
private loop(): void {
if (this.audioPlayerElem !== undefined) {
this.audioPlayerElem.loop = true;
}
}
public unloadAudio(): void {
try {
const audioElem = HtmlUtils.getElementByIdOrFail<HTMLAudioElement>('audioplayerelem');
this.volume = audioElem.volume;
this.muted = audioElem.muted;
audioElem.pause();
audioElem.loop = false;
audioElem.src = "";
audioElem.innerHTML = "";
audioElem.load();
} catch (e) {
console.log('No audio element loaded to unload');
}
this.close();
}
public decreaseVolume(): void {
this.changeVolume(true);
}
public restoreVolume(): void {
this.changeVolume(false);
}
}
export const audioManager = new AudioManager();