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
This commit is contained in:
Luciano Iam
parent
612c71aa25
commit
50ba8dea96
GPG Key ID:
A090BCE02CF57F04
@ -29,13 +29,13 @@ using namespace ARDOUR;
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#define NODE_METHOD_PAIR(x) (Node::x, &WebsocketsDispatcher::x##_handler)
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WebsocketsDispatcher::NodeMethodMap
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WebsocketsDispatcher::_node_to_method = boost::assign::map_list_of
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WebsocketsDispatcher::_node_to_method = boost::assign::map_list_of
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NODE_METHOD_PAIR (tempo)
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NODE_METHOD_PAIR (strip_gain)
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NODE_METHOD_PAIR (strip_pan)
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NODE_METHOD_PAIR (strip_mute)
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NODE_METHOD_PAIR (strip_plugin_enable)
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NODE_METHOD_PAIR (strip_plugin_param_value);
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NODE_METHOD_PAIR (strip_pan)
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NODE_METHOD_PAIR (strip_mute)
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NODE_METHOD_PAIR (strip_plugin_enable)
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NODE_METHOD_PAIR (strip_plugin_param_value);
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void
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WebsocketsDispatcher::dispatch (Client client, const NodeStateMessage& msg)
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@ -105,7 +105,6 @@ WebsocketsDispatcher::update_all_nodes (Client client)
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val.push_back (std::string ("i"));
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val.push_back (pd.lower);
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val.push_back (pd.upper);
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val.push_back (pd.integer_step);
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} else {
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val.push_back (std::string ("d"));
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val.push_back (pd.lower);
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@ -92,10 +92,10 @@ WebsocketsServer::WebsocketsServer (ArdourSurface::ArdourWebsockets& surface)
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#if LWS_LIBRARY_VERSION_MAJOR < 3
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/* older libwebsockets does not define mime type for svg files */
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memset (&_lws_vhost_opt, 0, sizeof (lws_protocol_vhost_options));
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_lws_vhost_opt.name = ".svg";
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_lws_vhost_opt.value = "image/svg+xml";
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_lws_vhost_opt.name = ".svg";
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_lws_vhost_opt.value = "image/svg+xml";
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_lws_mnt_index.extra_mimetypes = &_lws_vhost_opt;
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_lws_mnt_user.extra_mimetypes = &_lws_vhost_opt;
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_lws_mnt_user.extra_mimetypes = &_lws_vhost_opt;
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#endif
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}
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@ -26,6 +26,7 @@ div {
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flex: 1;
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display: flex;
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flex-direction: column;
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overflow: hidden;
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box-shadow: 0px 0px 10px #000;
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}
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@ -76,6 +77,10 @@ div {
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color: rgb(172,128,255);
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}
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.info {
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color: rgb(99,208,230);
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}
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.error {
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color: rgb(249,36,114);
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}
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@ -17,8 +17,7 @@
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*/
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// This example does not call the API methods in ardour.js,
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// instead it interacts at a lower level by coupling the widgets
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// tightly to the message stream
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// instead it couples the widgets directly to the message stream
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import { ANode, Message } from '/shared/message.js';
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import { ArdourClient } from '/shared/ardour.js';
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@ -29,8 +28,6 @@ import { Switch, DiscreteSlider, ContinuousSlider, LogarithmicSlider,
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(() => {
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const MAX_LOG_LINES = 1000;
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const FEEDBACK_NODES = [ANode.STRIP_GAIN, ANode.STRIP_PAN, ANode.STRIP_METER,
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ANode.STRIP_PLUGIN_ENABLE, ANode.STRIP_PLUGIN_PARAM_VALUE];
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const ardour = new ArdourClient(location.host);
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const widgets = {};
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@ -43,101 +40,95 @@ import { Switch, DiscreteSlider, ContinuousSlider, LogarithmicSlider,
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div.innerHTML = `${manifest.name.toUpperCase()} v${manifest.version} — ${manifest.description}`;
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});
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ardour.addCallback({
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onMessage: (msg) => {
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log(`↙ ${msg}`, 'message-in');
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if (msg.node == ANode.STRIP_DESC) {
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createStrip (msg.addr, ...msg.val);
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} else if (msg.node == ANode.STRIP_PLUGIN_DESC) {
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createStripPlugin (msg.addr, ...msg.val);
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} else if (msg.node == ANode.STRIP_PLUGIN_PARAM_DESC) {
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createStripPluginParam (msg.addr, ...msg.val);
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} else if (FEEDBACK_NODES.includes(msg.node)) {
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if (widgets[msg.hash]) {
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widgets[msg.hash].value = msg.val[0];
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}
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}
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},
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onError: () => {
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log('Client error', 'error');
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}
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ardour.addCallbacks({
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onConnected: (error) => { log('Client connected', 'info'); },
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onDisconnected: (error) => { log('Client disconnected', 'error'); },
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onMessage: processMessage,
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onStripDesc: createStrip,
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onStripPluginDesc: createStripPlugin,
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onStripPluginParamDesc: createStripPluginParam
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});
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ardour.open();
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ardour.connect();
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}
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function createStrip (addr, name) {
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const id = `strip-${addr[0]}`;
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function createStrip (stripId, name) {
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const domId = `strip-${stripId}`;
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if (document.getElementById(domId) != null) {
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return;
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}
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const strips = document.getElementById('strips');
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const div = createElem(`<div class="strip" id="${id}"></div>`, strips);
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createElem(`<label class="comp-name" for="${id}">∿  ${name}</label>`, div);
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const div = createElem(`<div class="strip" id="${domId}"></div>`, strips);
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createElem(`<label class="comp-name" for="${domId}">∿  ${name}</label>`, div);
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// meter
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const meter = new StripMeter(ANode.STRIP_METER, addr);
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const meter = new StripMeter();
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meter.el.classList.add('slider-meter');
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meter.attach(div);
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register(meter);
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meter.appendTo(div);
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connectWidget(meter, ANode.STRIP_METER, stripId);
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// gain
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let holder = createElem(`<div class="strip-slider"></div>`, div);
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createElem(`<label>Gain</label>`, holder);
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const gain = new StripGainSlider(ANode.STRIP_GAIN, addr);
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gain.attach(holder, (val) => send(gain));
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register(gain);
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const gain = new StripGainSlider();
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gain.appendTo(holder);
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connectWidget(gain, ANode.STRIP_GAIN, stripId);
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// pan
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holder = createElem(`<div class="strip-slider"></div>`, div);
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createElem(`<label>Pan</label>`, holder);
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const pan = new StripPanSlider(ANode.STRIP_PAN, addr);
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pan.attach(holder, (val) => send(pan));
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register(pan);
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const pan = new StripPanSlider();
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pan.appendTo(holder);
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connectWidget(pan, ANode.STRIP_PAN, stripId);
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}
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function createStripPlugin (addr, name) {
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const strip = document.getElementById(`strip-${addr[0]}`);
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const id = `plugin-${addr[0]}-${addr[1]}`;
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const div = createElem(`<div class="plugin" id="${id}"></div>`, strip);
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function createStripPlugin (stripId, pluginId, name) {
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const domId = `plugin-${stripId}-${pluginId}`;
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if (document.getElementById(domId) != null) {
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return;
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}
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const strip = document.getElementById(`strip-${stripId}`);
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const div = createElem(`<div class="plugin" id="${domId}"></div>`, strip);
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createElem(`<label class="comp-name">⨍  ${name}</label>`, div);
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const enable = new Switch(ANode.STRIP_PLUGIN_ENABLE, addr);
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const enable = new Switch();
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enable.el.classList.add('plugin-enable');
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enable.attach(div, (val) => send(enable));
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register(enable);
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enable.appendTo(div);
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connectWidget(enable, ANode.STRIP_PLUGIN_ENABLE, stripId, pluginId);
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}
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function createStripPluginParam (addr, name, dataType, min, max, isLog) {
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function createStripPluginParam (stripId, pluginId, paramId, name, valueType, min, max, isLog) {
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const domId = `param-${stripId}-${pluginId}-${paramId}`;
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if (document.getElementById(domId) != null) {
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return;
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}
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let param, cssClass;
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if (dataType == 'b') {
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if (valueType == 'b') {
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cssClass = 'boolean';
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param = new Switch(ANode.STRIP_PLUGIN_PARAM_VALUE, addr);
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} else if (dataType == 'i') {
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param = new Switch();
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} else if (valueType == 'i') {
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cssClass = 'discrete';
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param = new DiscreteSlider(ANode.STRIP_PLUGIN_PARAM_VALUE, addr, min, max);
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} else if (dataType == 'd') {
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param = new DiscreteSlider(min, max);
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} else if (valueType == 'd') {
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cssClass = 'continuous';
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if (isLog) {
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param = new LogarithmicSlider(ANode.STRIP_PLUGIN_PARAM_VALUE, addr, min, max);
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param = new LogarithmicSlider(min, max);
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} else {
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param = new ContinuousSlider(ANode.STRIP_PLUGIN_PARAM_VALUE, addr, min, max);
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param = new ContinuousSlider(min, max);
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}
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}
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const plugin = document.getElementById(`plugin-${addr[0]}-${addr[1]}`);
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const id = `param-${addr[0]}-${addr[1]}-${addr[2]}`;
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const div = createElem(`<div class="plugin-param ${cssClass}" id="${id}"></div>`, plugin);
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createElem(`<label for="${id}">${name}</label>`, div);
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const plugin = document.getElementById(`plugin-${stripId}-${pluginId}`);
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const div = createElem(`<div class="plugin-param ${cssClass}" id="${domId}"></div>`, plugin);
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createElem(`<label for="${domId}">${name}</label>`, div);
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param.attach(div, (val) => send(param));
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param.el.name = id;
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register(param);
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}
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function send (widget) {
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const msg = new Message(widget.node, widget.addr, [widget.value]);
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log(`↗ ${msg}`, 'message-out');
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ardour.send(msg);
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param.el.name = domId;
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param.appendTo(div);
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connectWidget(param, ANode.STRIP_PLUGIN_PARAM_VALUE, stripId, pluginId, paramId);
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}
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function createElem (html, parent) {
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@ -153,8 +144,24 @@ import { Switch, DiscreteSlider, ContinuousSlider, LogarithmicSlider,
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return elem;
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}
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function register (widget) {
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widgets[widget.hash] = widget;
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function connectWidget (widget, node, ...addr) {
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const nodeAddrId = Message.nodeAddrId(node, addr);
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widgets[nodeAddrId] = widget;
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widget.callback = (val) => {
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const msg = new Message(node, addr, [val]);
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log(`↗ ${msg}`, 'message-out');
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ardour.send(msg);
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};
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}
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function processMessage (msg) {
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log(`↙ ${msg}`, 'message-in');
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if (widgets[msg.nodeAddrId]) {
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widgets[msg.nodeAddrId].value = msg.val[0];
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}
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}
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function log (message, className) {
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@ -20,36 +20,26 @@ import { Message } from '/shared/message.js';
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export class Widget {
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constructor (node, addr, html) {
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this.node = node;
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this.addr = addr;
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constructor (html) {
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const template = document.createElement('template');
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template.innerHTML = html;
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this.el = template.content.firstChild;
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}
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attach (parent, callback) {
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appendTo (parent) {
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parent.appendChild(this.el);
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if (callback) {
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this.callback = callback;
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}
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}
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callback (value) {
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// do nothing by default
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}
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get hash () {
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return Message.hash(this.node, this.addr);
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}
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}
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export class Switch extends Widget {
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constructor (node, addr) {
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super (node, addr, `<input type="checkbox" class="widget-switch">`);
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constructor () {
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super (`<input type="checkbox" class="widget-switch">`);
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this.el.addEventListener('input', (ev) => this.callback(this.value));
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}
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@ -65,10 +55,10 @@ export class Switch extends Widget {
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export class Slider extends Widget {
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constructor (node, addr, min, max, step) {
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constructor (min, max, step) {
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const html = `<input type="range" class="widget-slider"
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min="${min}" max="${max}" step="${step}">`;
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super(node, addr, html);
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super(html);
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this.min = min;
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this.max = max;
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this.el.addEventListener('input', (ev) => this.callback(this.value));
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@ -86,24 +76,24 @@ export class Slider extends Widget {
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export class DiscreteSlider extends Slider {
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constructor (node, addr, min, max) {
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super(node, addr, min, max, 1);
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constructor (min, max, step) {
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super(min, max, step || 1);
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}
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}
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export class ContinuousSlider extends Slider {
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constructor (node, addr, min, max) {
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super(node, addr, min, max, 0.001);
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constructor (min, max) {
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super(min, max, 0.001);
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}
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}
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export class LogarithmicSlider extends ContinuousSlider {
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constructor (node, addr, min, max) {
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super(node, addr, 0, 1.0);
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constructor (min, max) {
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super(0, 1.0);
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this.minVal = Math.log(min);
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this.maxVal = Math.log(max);
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this.scale = this.maxVal - this.minVal;
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@ -121,16 +111,16 @@ export class LogarithmicSlider extends ContinuousSlider {
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export class StripPanSlider extends ContinuousSlider {
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constructor (node, addr) {
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super(node, addr, -1.0, 1.0);
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constructor () {
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super(-1.0, 1.0);
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}
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}
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export class StripGainSlider extends ContinuousSlider {
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constructor (node, addr) {
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super(node, addr, 0, 1.0)
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constructor () {
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super(0, 1.0)
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this.minVal = -58.0;
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this.maxVal = 6.0;
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this.scale = (this.maxVal - this.minVal);
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@ -148,8 +138,8 @@ export class StripGainSlider extends ContinuousSlider {
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export class StripMeter extends Widget {
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constructor (node, addr) {
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super(node, addr, `<label></label>`);
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constructor () {
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super(`<label></label>`);
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}
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set value (val) {
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@ -16,17 +16,19 @@
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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import { MetadataMixin } from './metadata.js';
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import { ControlMixin } from './control.js';
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import { MetadataMixin } from './metadata.js';
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import { Message } from './message.js';
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import { MessageChannel } from './channel.js';
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// See *Mixin for the available APIs
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// See ControlMixin and MetadataMixin for available APIs
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// See ArdourCallback for an example callback implementation
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class BaseArdourClient {
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constructor () {
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this._callbacks = [];
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this._connected = false;
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this._pendingRequest = null;
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this._channel = new MessageChannel(location.host);
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@ -39,21 +41,30 @@ class BaseArdourClient {
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};
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}
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addCallback (callback) {
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this._callbacks.push(callback);
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addCallbacks (callbacks) {
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this._callbacks.push(callbacks);
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}
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async open () {
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this._channel.onClose = () => {
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this._fireCallbacks('error', new Error('Message channel unexpectedly closed'));
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async connect (autoReconnect) {
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this._channel.onClose = async () => {
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if (this._connected) {
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this._fireCallbacks('disconnected');
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this._connected = false;
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}
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if ((autoReconnect == null) || autoReconnect) {
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await this._sleep(1000);
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await this._connect();
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}
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};
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await this._channel.open();
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this._connect();
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}
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close () {
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disconnect () {
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this._channel.onClose = () => {};
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this._channel.close();
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this._connected = false;
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}
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send (msg) {
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@ -61,6 +72,12 @@ class BaseArdourClient {
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}
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// Private methods
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async _connect () {
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await this._channel.open();
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this._connected = true;
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this._fireCallbacks('connected');
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}
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_send (node, addr, val) {
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const msg = new Message(node, addr, val);
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@ -75,6 +92,10 @@ class BaseArdourClient {
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});
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}
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async _sendRecvSingle (node, addr, val) {
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return await this._sendAndReceive (node, addr, val)[0];
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}
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_onChannelMessage (msg) {
|
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if (this._pendingRequest && (this._pendingRequest.hash == msg.hash)) {
|
||||
this._pendingRequest.resolve(msg.val);
|
||||
@ -91,9 +112,9 @@ class BaseArdourClient {
|
||||
return s[0].toUpperCase() + s.slice(1).toLowerCase();
|
||||
}).join('');
|
||||
|
||||
for (const callback of this._callbacks) {
|
||||
if (method in callback) {
|
||||
callback[method](...args)
|
||||
for (const callbacks of this._callbacks) {
|
||||
if (method in callbacks) {
|
||||
callbacks[method](...args)
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -102,15 +123,19 @@ class BaseArdourClient {
|
||||
return new Error(`HTTP response status ${status}`);
|
||||
}
|
||||
|
||||
async _sleep (t) {
|
||||
return new Promise(resolve => setTimeout(resolve, 1000));
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
export class ArdourClient extends mixin(BaseArdourClient, ControlMixin, MetadataMixin) {}
|
||||
|
||||
function mixin (dstClass, ...classes) {
|
||||
for (const srcClass of classes) {
|
||||
for (const methName of Object.getOwnPropertyNames(srcClass.prototype)) {
|
||||
if (methName != 'constructor') {
|
||||
dstClass.prototype[methName] = srcClass.prototype[methName];
|
||||
for (const propName of Object.getOwnPropertyNames(srcClass.prototype)) {
|
||||
if (propName != 'constructor') {
|
||||
dstClass.prototype[propName] = srcClass.prototype[propName];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -20,14 +20,34 @@
|
||||
|
||||
export class ArdourCallback {
|
||||
|
||||
onTempo (bpm) {}
|
||||
onStripGain (stripId, db) {}
|
||||
onStripPan (stripId, value) {}
|
||||
onStripMute (stripId, value) {}
|
||||
onStripPluginEnable (stripId, pluginId, value) {}
|
||||
onStripPluginParamValue (stripId, pluginId, paramId, value) {}
|
||||
// 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) {}
|
||||
|
||||
// Strip plugin parameters
|
||||
// valueType
|
||||
// 'b' : boolean
|
||||
// 'i' : integer
|
||||
// 'd' : double
|
||||
onStripPluginParamDesc (stripId, pluginId, paramId, name, valueType, min, max, isLog) {}
|
||||
onStripPluginParamValue (stripId, pluginId, paramId, value) {}
|
||||
|
||||
}
|
||||
|
||||
@ -23,27 +23,27 @@ import { ANode } from './message.js';
|
||||
export class ControlMixin {
|
||||
|
||||
async getTempo () {
|
||||
return (await this._sendAndReceive(ANode.TEMPO))[0];
|
||||
return await this._sendRecvSingle(ANode.TEMPO);
|
||||
}
|
||||
|
||||
async getStripGain (stripId) {
|
||||
return (await this._sendAndReceive(ANode.STRIP_GAIN, [stripId]))[0];
|
||||
return await this._sendRecvSingle(ANode.STRIP_GAIN, [stripId]);
|
||||
}
|
||||
|
||||
async getStripPan (stripId) {
|
||||
return (await this._sendAndReceive(ANode.STRIP_PAN, [stripId]))[0];
|
||||
return await this._sendRecvSingle(ANode.STRIP_PAN, [stripId]);
|
||||
}
|
||||
|
||||
async getStripMute (stripId) {
|
||||
return (await this._sendAndReceive(ANode.STRIP_MUTE, [stripId]))[0];
|
||||
return await this._sendRecvSingle(ANode.STRIP_MUTE, [stripId]);
|
||||
}
|
||||
|
||||
async getStripPluginEnable (stripId, pluginId) {
|
||||
return (await this._sendAndReceive(ANode.STRIP_PLUGIN_ENABLE, [stripId, pluginId]))[0];
|
||||
return await this._sendRecvSingle(ANode.STRIP_PLUGIN_ENABLE, [stripId, pluginId]);
|
||||
}
|
||||
|
||||
async getStripPluginParamValue (stripId, pluginId, paramId) {
|
||||
return (await this._sendAndReceive(ANode.STRIP_PLUGIN_PARAM_VALUE, [stripId, pluginId, paramId]))[0];
|
||||
return await this._sendRecvSingle(ANode.STRIP_PLUGIN_PARAM_VALUE, [stripId, pluginId, paramId]);
|
||||
}
|
||||
|
||||
setTempo (bpm) {
|
||||
|
||||
@ -19,15 +19,15 @@
|
||||
export const JSON_INF = 1.0e+128;
|
||||
|
||||
export const ANode = Object.freeze({
|
||||
TEMPO: 'tempo',
|
||||
STRIP_DESC: 'strip_desc',
|
||||
STRIP_METER: 'strip_meter',
|
||||
STRIP_GAIN: 'strip_gain',
|
||||
STRIP_PAN: 'strip_pan',
|
||||
STRIP_MUTE: 'strip_mute',
|
||||
STRIP_PLUGIN_DESC: 'strip_plugin_desc',
|
||||
STRIP_PLUGIN_ENABLE: 'strip_plugin_enable',
|
||||
STRIP_PLUGIN_PARAM_DESC: 'strip_plugin_param_desc',
|
||||
TEMPO: 'tempo',
|
||||
STRIP_DESC: 'strip_desc',
|
||||
STRIP_METER: 'strip_meter',
|
||||
STRIP_GAIN: 'strip_gain',
|
||||
STRIP_PAN: 'strip_pan',
|
||||
STRIP_MUTE: 'strip_mute',
|
||||
STRIP_PLUGIN_DESC: 'strip_plugin_desc',
|
||||
STRIP_PLUGIN_ENABLE: 'strip_plugin_enable',
|
||||
STRIP_PLUGIN_PARAM_DESC: 'strip_plugin_param_desc',
|
||||
STRIP_PLUGIN_PARAM_VALUE: 'strip_plugin_param_value'
|
||||
});
|
||||
|
||||
@ -49,7 +49,7 @@ export class Message {
|
||||
}
|
||||
}
|
||||
|
||||
static hash (node, addr) {
|
||||
static nodeAddrId (node, addr) {
|
||||
return [node].concat(addr || []).join('_');
|
||||
}
|
||||
|
||||
@ -74,8 +74,8 @@ export class Message {
|
||||
return JSON.stringify({node: this.node, addr: this.addr, val: val});
|
||||
}
|
||||
|
||||
get hash () {
|
||||
return Message.hash(this.node, this.addr);
|
||||
get nodeAddrId () {
|
||||
return Message.nodeAddrId(this.node, this.addr);
|
||||
}
|
||||
|
||||
toString () {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user