Add container to customTraceToPlotlyTrace function to check if trace.mode is set

Author: VeraZab

src/components/fields/TraceSelector.js

@@ -79,7 +79,8 @@ class TraceSelector extends Component {
   }
 
   updatePlot(value) {
-    const update = customTraceToPlotlyTrace(value);
+    const {container} = this.props;
+    const update = customTraceToPlotlyTrace(value, container);
 
     if (this.props.updateContainer) {
       this.props.updateContainer(update);

src/lib/customTraceType.js

@@ -9,19 +9,22 @@ export function plotlyTraceToCustomTrace(trace) {
     return 'area';
   } else if (
     trace.type === 'scatter' &&
-    trace.mode &&
-    (trace.mode === 'lines' || trace.mode === 'lines+markers')
+    (!trace.mode || trace.mode === 'lines' || trace.mode === 'lines+markers')
   ) {
     return 'line';
   }
   return trace.type;
 }
 
-export function customTraceToPlotlyTrace(customTraceType) {
-  if (customTraceType === 'line') {
+export function customTraceToPlotlyTrace(customTraceType, container) {
+  if (customTraceType === 'line' && container.mode) {
     return {type: 'scatter', mode: 'lines', fill: 'none'};
   }
 
+  if (customTraceType === 'line' && !container.mode) {
+    return {type: 'scatter', mode: 'lines+markers', fill: 'none'};
+  }
+
   if (customTraceType === 'scatter') {
     return {type: 'scatter', mode: 'markers', fill: 'none'};
   }