Merge pull request #253 from Lattice-Automation/scroll-to-selection

Linear view scrolls to selection when passed by prop

src/SeqViewerContainer.tsx

@@ -84,13 +84,20 @@ class SeqViewerContainer extends React.Component<SeqViewerContainerProps, SeqVie
     this.state = {
       centralIndex: {
         circular: 0,
-        linear: 0,
+        linear: props?.selection?.start || 0,
         setCentralIndex: this.setCentralIndex,
       },
       selection: this.getSelection(defaultSelection, props.selection),
     };
   }
 
+  // If the selection prop updates, also scroll the lineaer view to the new selection
+  componentDidUpdate = (prevProps: SeqViewerContainerProps) => {
+    if (this.props.selection?.start !== prevProps.selection?.start) {
+      this.setCentralIndex("LINEAR", this.props.selection?.start || 0);
+    }
+  };
+
   /** this is here because the size listener is returning a new "size" prop every time */
   shouldComponentUpdate = (nextProps: SeqViewerContainerProps, nextState: any) =>
     !isEqual(nextProps, this.props) || !isEqual(nextState, this.state);