smokephil/ardour
1
0
Fork 0
mirror of https://github.com/Ardour/ardour.git synced 2025-12-15 11:06:32 +01:00
Code Issues Projects Releases Wiki Activity

WebSockets: implement a JavaScript object-oriented client API

Browse source 
Replace previous callback based basic client with an easier
to use object-oriented API that further abstracts the low level
details of the WebSockets Server surface messaging protocol.

All built-in web surface demos were updated to use the new API.
This commit is contained in:
Luciano Iam 2020-05-29 11:37:34 +02:00 • committed by Robin Gareus
parent 5296ed141f
commit ae4df127ad
No known key found for this signature in database
GPG key ID: A090BCE02CF57F04
18 changed files with 812 additions and 361 deletions
Download patch file Download diff file Expand all files Collapse all files

88
share/web_surfaces/shared/message.js
View file

@ -1,88 +0,0 @@
/*
* 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.
*/
export const JSON_INF = 1.0e+128;
export const ANode = Object.freeze({
TEMPO: 'tempo',
POSITION_TIME: 'position_time',
TRANSPORT_ROLL: 'transport_roll',
RECORD_STATE: 'record_state',
STRIP_DESCRIPTION: 'strip_description',
STRIP_METER: 'strip_meter',
STRIP_GAIN: 'strip_gain',
STRIP_PAN: 'strip_pan',
STRIP_MUTE: 'strip_mute',
STRIP_PLUGIN_DESCRIPTION: 'strip_plugin_description',
STRIP_PLUGIN_ENABLE: 'strip_plugin_enable',
STRIP_PLUGIN_PARAM_DESCRIPTION: 'strip_plugin_param_description',
STRIP_PLUGIN_PARAM_VALUE: 'strip_plugin_param_value'
});
export class Message {
constructor (node, addr, val) {
this.node = node;
this.addr = addr;
this.val = [];
for (const i in val) {
if (val[i] >= JSON_INF) {
this.val.push(Infinity);
} else if (val[i] <= -JSON_INF) {
this.val.push(-Infinity);
} else {
this.val.push(val[i]);
}
}
}
static nodeAddrId (node, addr) {
return [node].concat(addr || []).join('_');
}
static fromJsonText (jsonText) {
let rawMsg = JSON.parse(jsonText);
return new Message(rawMsg.node, rawMsg.addr || [], rawMsg.val);
}
toJsonText () {
let val = [];
for (const i in this.val) {
if (this.val[i] == Infinity) {
val.push(JSON_INF);
} else if (this.val[i] == -Infinity) {
val.push(-JSON_INF);
} else {
val.push(this.val[i]);
}
}
return JSON.stringify({node: this.node, addr: this.addr, val: val});
}
get nodeAddrId () {
return Message.nodeAddrId(this.node, this.addr);
}
toString () {
return `${this.node} (${this.addr}) = ${this.val}`;
}
}