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/*
* Copyright (C) 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.
*/
// This example does not call the API methods in ardour.js,
// instead it interacts at a lower level by coupling the widgets
// tightly to the message stream
import { ANode, Message } from '/shared/message.js';
import { ArdourClient } from '/shared/ardour.js';
import { Switch, DiscreteSlider, ContinuousSlider, LogarithmicSlider,
StripPanSlider, StripGainSlider, StripMeter } from './widget.js';
(() => {
const MAX_LOG_LINES = 1000;
const FEEDBACK_NODES = [ANode.STRIP_GAIN, ANode.STRIP_PAN, ANode.STRIP_METER,
ANode.STRIP_PLUGIN_ENABLE, ANode.STRIP_PLUGIN_PARAM_VALUE];
const ardour = new ArdourClient(location.host);
const widgets = {};
main();
function main () {
ardour.getSurfaceManifest().then((manifest) => {
const div = document.getElementById('manifest');
div.innerHTML = `${manifest.name.toUpperCase()} v${manifest.version} — ${manifest.description}`;
});
ardour.addCallback({
onMessage: (msg) => {
log(`↙ ${msg}`, 'message-in');
if (msg.node == ANode.STRIP_DESC) {
createStrip (msg.addr, ...msg.val);
} else if (msg.node == ANode.STRIP_PLUGIN_DESC) {
createStripPlugin (msg.addr, ...msg.val);
} else if (msg.node == ANode.STRIP_PLUGIN_PARAM_DESC) {
createStripPluginParam (msg.addr, ...msg.val);
} else if (FEEDBACK_NODES.includes(msg.node)) {
if (widgets[msg.hash]) {
widgets[msg.hash].value = msg.val[0];
}
}
},
onError: () => {
log('Client error', 'error');
}
});
ardour.open();
}
function createStrip (addr, name) {
const id = `strip-${addr[0]}`;
const strips = document.getElementById('strips');
const div = createElem(`<div class="strip" id="${id}"></div>`, strips);
createElem(`<label class="comp-name" for="${id}">∿  ${name}</label>`, div);
// meter
const meter = new StripMeter(ANode.STRIP_METER, addr);
meter.el.classList.add('slider-meter');
meter.attach(div);
register(meter);
// gain
let holder = createElem(`<div class="strip-slider"></div>`, div);
createElem(`<label>Gain</label>`, holder);
const gain = new StripGainSlider(ANode.STRIP_GAIN, addr);
gain.attach(holder, (val) => send(gain));
register(gain);
// pan
holder = createElem(`<div class="strip-slider"></div>`, div);
createElem(`<label>Pan</label>`, holder);
const pan = new StripPanSlider(ANode.STRIP_PAN, addr);
pan.attach(holder, (val) => send(pan));
register(pan);
}
function createStripPlugin (addr, name) {
const strip = document.getElementById(`strip-${addr[0]}`);
const id = `plugin-${addr[0]}-${addr[1]}`;
const div = createElem(`<div class="plugin" id="${id}"></div>`, strip);
createElem(`<label class="comp-name">⨍  ${name}</label>`, div);
const enable = new Switch(ANode.STRIP_PLUGIN_ENABLE, addr);
enable.el.classList.add('plugin-enable');
enable.attach(div, (val) => send(enable));
register(enable);
}
function createStripPluginParam (addr, name, dataType, min, max, isLog) {
let param, cssClass;
if (dataType == 'b') {
cssClass = 'boolean';
param = new Switch(ANode.STRIP_PLUGIN_PARAM_VALUE, addr);
} else if (dataType == 'i') {
cssClass = 'discrete';
param = new DiscreteSlider(ANode.STRIP_PLUGIN_PARAM_VALUE, addr, min, max);
} else if (dataType == 'd') {
cssClass = 'continuous';
if (isLog) {
param = new LogarithmicSlider(ANode.STRIP_PLUGIN_PARAM_VALUE, addr, min, max);
} else {
param = new ContinuousSlider(ANode.STRIP_PLUGIN_PARAM_VALUE, addr, min, max);
}
}
const plugin = document.getElementById(`plugin-${addr[0]}-${addr[1]}`);
const id = `param-${addr[0]}-${addr[1]}-${addr[2]}`;
const div = createElem(`<div class="plugin-param ${cssClass}" id="${id}"></div>`, plugin);
createElem(`<label for="${id}">${name}</label>`, div);
param.attach(div, (val) => send(param));
param.el.name = id;
register(param);
}
function send (widget) {
const msg = new Message(widget.node, widget.addr, [widget.value]);
log(`↗ ${msg}`, 'message-out');
ardour.send(msg);
}
function createElem (html, parent) {
const t = document.createElement('template');
t.innerHTML = html;
const elem = t.content.firstChild;
if (parent) {
parent.appendChild(elem);
}
return elem;
}
function register (widget) {
widgets[widget.hash] = widget;
}
function log (message, className) {
const output = document.getElementById('log');
if (output.childElementCount > MAX_LOG_LINES) {
output.removeChild(output.childNodes[0]);
}
const pre = document.createElement('pre');
pre.innerHTML = message;
pre.className = className;
output.appendChild(pre);
output.scrollTop = output.scrollHeight;
}
})();
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