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path: root/src/client/northstar/dash-nodes/HistogramBox.tsx
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-rw-r--r--src/client/northstar/dash-nodes/HistogramBox.tsx6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/client/northstar/dash-nodes/HistogramBox.tsx b/src/client/northstar/dash-nodes/HistogramBox.tsx
index eb1ad69b7..d7732ee86 100644
--- a/src/client/northstar/dash-nodes/HistogramBox.tsx
+++ b/src/client/northstar/dash-nodes/HistogramBox.tsx
@@ -19,7 +19,7 @@ import { HistogramLabelPrimitives } from "./HistogramLabelPrimitives";
import { StyleConstants } from "../utils/StyleContants";
import { Cast } from "../../../new_fields/Types";
import { Doc, DocListCast, DocListCastAsync } from "../../../new_fields/Doc";
-import { Id } from "../../../new_fields/RefField";
+import { Id } from "../../../new_fields/FieldSymbols";
@observer
@@ -125,9 +125,11 @@ export class HistogramBox extends React.Component<FieldViewProps> {
let mapped = brushingDocs.map((brush, i) => {
brush.backgroundColor = StyleConstants.BRUSH_COLORS[i % StyleConstants.BRUSH_COLORS.length];
let brushed = DocListCast(brush.brushingDocs);
+ if (!brushed.length)
+ return null;
return { l: brush, b: brushed[0][Id] === proto[Id] ? brushed[1] : brushed[0] };
});
- this.HistoOp.BrushLinks.splice(0, this.HistoOp.BrushLinks.length, ...mapped);
+ runInAction(() => this.HistoOp.BrushLinks.splice(0, this.HistoOp.BrushLinks.length, ...mapped.filter(m => m) as { l: Doc, b: Doc }[]));
}
}, { fireImmediately: true });
reaction(() => this.createOperationParamsCache, () => this.HistoOp.Update(), { fireImmediately: true });