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livetrax/share/web_surfaces/shared/components/mixer.js

68 lines
1.9 KiB
JavaScript

/*
* Copyright © 2020 Luciano Iam <lucianito@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
import { RootComponent } from '../base/component.js';
import { StateNode } from '../base/protocol.js';
import { Strip } from './strip.js';
export class Mixer extends RootComponent {
constructor (channel) {
super(channel);
this._strips = {};
this._ready = false;
}
get ready () {
return this._ready;
}
get strips () {
return Object.values(this._strips);
}
getStripByName (name) {
name = name.trim().toLowerCase();
return this.strips.find(strip => strip.name.trim().toLowerCase() == name);
}
handle (node, addr, val) {
if (node.startsWith('strip')) {
if (node == StateNode.STRIP_DESCRIPTION) {
this._strips[addr] = new Strip(this, addr, val);
this.notifyObservers('strips');
return true;
} else {
const stripAddr = [addr[0]];
if (stripAddr in this._strips) {
return this._strips[stripAddr].handle(node, addr, val);
}
}
} else {
// all initial strip description messages have been received at this point
if (!this._ready) {
this.updateLocal('ready', true);
// passthrough by allowing to return false
}
}
return false;
}
}