WebSockets: improve JS client and demo

add methods to callback.js
automatically reconnect js client on disconnection
mixer-demo do not recreate UI on reconnection
NO-OP: indentation in message.js
make client JS reconnection optional
fix mixer-demo scrolling
minor JS client refactor
improve mixer-demo readability

1 files changed, 24 insertions, 4 deletions

diff --git a/share/web_surfaces/shared/callback.js b/share/web_surfaces/shared/callback.js
index a510b118cf..9da8b420d2 100644
--- a/share/web_surfaces/shared/callback.js
+++ b/share/web_surfaces/shared/callback.js
@@ -20,14 +20,34 @@
 
  export class ArdourCallback {
 
+	// Connection status
+	onConnected () {}
+	onDisconnected () {}
+
+	// All messages and errors
+ 	onMessage (msg) {}	
+ 	onError (error) {}
+
+	// Globals
 	onTempo (bpm) {}
+
+	// Strips
+	onStripDesc (stripId, name) {}
+	onStripMeter (stripId, db) {}
 	onStripGain (stripId, db) {}
 	onStripPan (stripId, value) {}
 	onStripMute (stripId, value) {}
+
+	// Strip plugins
+	onStripPluginDesc (stripId, pluginId, name) {}
 	onStripPluginEnable (stripId, pluginId, value) {}
-	onStripPluginParamValue (stripId, pluginId, paramId, value) {}
 
- 	onMessage (msg) {}	
- 	onError (error) {}
+	// Strip plugin parameters
+	// valueType
+	//   'b' : boolean
+	//   'i' : integer
+	//   'd' : double
+	onStripPluginParamDesc (stripId, pluginId, paramId, name, valueType, min, max, isLog) {}
+	onStripPluginParamValue (stripId, pluginId, paramId, value) {}
 
- }
+}