@ng-web-apis/audio
Version:
This is a library for declarative use of Web Audio API with Angular
65 lines • 7.98 kB
JavaScript
import { Attribute, ContentChildren, Directive, inject } from '@angular/core';
import { AUDIO_CONTEXT } from '../tokens/audio-context';
import { AUDIO_NODE } from '../tokens/audio-node';
import { CONSTRUCTOR_SUPPORT } from '../tokens/constructor-support';
import { connect } from '../utils/connect';
import * as i0 from "@angular/core";
class WebAudioChannelSplitter extends ChannelSplitterNode {
constructor(outputs) {
const context = inject(AUDIO_CONTEXT);
const node = inject(AUDIO_NODE, { skipSelf: true });
const modern = inject(CONSTRUCTOR_SUPPORT);
const numberOfOutputs = parseInt(outputs ?? '', 10) || 6;
if (modern) {
super(context, { numberOfOutputs });
connect(node, this);
}
else {
const result = context.createChannelSplitter(numberOfOutputs);
Object.setPrototypeOf(result, WebAudioChannelSplitter.prototype);
connect(node, result);
return result;
}
}
ngOnDestroy() {
this.disconnect();
}
set channels(channels) {
this.disconnect();
channels
.filter((node) => !!node)
.forEach((node, index) => {
this.connect(node, index);
});
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: WebAudioChannelSplitter, deps: [{ token: 'numberOfOutputs', attribute: true }], target: i0.ɵɵFactoryTarget.Directive });
static ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.2.12", type: WebAudioChannelSplitter, isStandalone: true, selector: "[waChannelSplitterNode]", inputs: { channelCount: "channelCount", channelCountMode: "channelCountMode", channelInterpretation: "channelInterpretation" }, providers: [
{
provide: AUDIO_NODE,
useValue: null,
},
], queries: [{ propertyName: "channels", predicate: AUDIO_NODE }], exportAs: ["AudioNode"], usesInheritance: true, ngImport: i0 });
}
export { WebAudioChannelSplitter };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: WebAudioChannelSplitter, decorators: [{
type: Directive,
args: [{
standalone: true,
selector: '[waChannelSplitterNode]',
inputs: ['channelCount', 'channelCountMode', 'channelInterpretation'],
providers: [
{
provide: AUDIO_NODE,
useValue: null,
},
],
exportAs: 'AudioNode',
}]
}], ctorParameters: function () { return [{ type: undefined, decorators: [{
type: Attribute,
args: ['numberOfOutputs']
}] }]; }, propDecorators: { channels: [{
type: ContentChildren,
args: [AUDIO_NODE, { descendants: false }]
}] } });
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