25f4adc7ad
The null safe operator is not recognized and was not encoded by Webpack in Svelte expressions (inside {})
+ The Notification API of Safari is old and broken and we need to account for that.
83 lines
1.8 KiB
Svelte
83 lines
1.8 KiB
Svelte
<script lang="typescript">
|
|
import { AudioContext } from 'standardized-audio-context';
|
|
import {SoundMeter} from "../../Phaser/Components/SoundMeter";
|
|
import {onDestroy} from "svelte";
|
|
|
|
export let stream: MediaStream | null;
|
|
let volume = 0;
|
|
|
|
const NB_BARS = 20;
|
|
|
|
let timeout;
|
|
const soundMeter = new SoundMeter();
|
|
let display = false;
|
|
|
|
$: {
|
|
if (stream && stream.getAudioTracks().length > 0) {
|
|
display = true;
|
|
soundMeter.connectToSource(stream, new AudioContext());
|
|
|
|
if (timeout) {
|
|
clearInterval(timeout);
|
|
}
|
|
|
|
timeout = setInterval(() => {
|
|
try{
|
|
volume = parseInt((soundMeter.getVolume() / 100 * NB_BARS).toFixed(0));
|
|
//console.log(volume);
|
|
}catch(err){
|
|
|
|
}
|
|
}, 100);
|
|
|
|
} else {
|
|
display = false;
|
|
}
|
|
}
|
|
|
|
onDestroy(() => {
|
|
soundMeter.stop();
|
|
if (timeout) {
|
|
clearInterval(timeout);
|
|
}
|
|
})
|
|
|
|
|
|
function color(i: number, volume: number) {
|
|
const red = 255 * i / NB_BARS;
|
|
const green = 255 * (1 - i / NB_BARS);
|
|
|
|
let alpha = 1;
|
|
if (i >= volume) {
|
|
alpha = 0.5;
|
|
}
|
|
|
|
return 'background-color:rgba('+red+', '+green+', 0, '+alpha+')';
|
|
}
|
|
</script>
|
|
|
|
|
|
<div class="horizontal-sound-meter" class:active={display}>
|
|
{#each [...Array(NB_BARS).keys()] as i}
|
|
<div style={color(i, volume)}></div>
|
|
{/each}
|
|
</div>
|
|
|
|
<style lang="scss">
|
|
.horizontal-sound-meter {
|
|
display: flex;
|
|
flex-direction: row;
|
|
width: 50%;
|
|
height: 30px;
|
|
margin-left: auto;
|
|
margin-right: auto;
|
|
margin-top: 1vh;
|
|
}
|
|
|
|
.horizontal-sound-meter div {
|
|
margin-left: 5px;
|
|
flex-grow: 1;
|
|
}
|
|
|
|
</style>
|