Update file tree toggle event tracking

Author: KattMingMing

app/components/tree/TreeViewer.tsx

@@ -3,6 +3,7 @@ import * as styles from "app/components/tree/styles/style";
 import { TreeHeader } from "app/components/tree/TreeHeader";
 import * as github from "app/github/util";
 import { TreeNode } from "app/sourcegraph/util";
+import { eventLogger } from "app/util/context";
 import * as React from "react";
 
 interface Props {
@@ -34,6 +35,7 @@ export class TreeViewer extends React.Component<Props, State> {
 	}
 
 	toggleTreeViewer(): void {
+		eventLogger.logFileTreeToggleClicked({ toggled: !this.state.toggled });
 		if (this.props.onToggled) {
 			this.props.onToggled(!this.state.toggled);
 		}

chrome/extension/inject/github.tsx

@@ -187,7 +187,6 @@ function injectFileTree(): void {
 
 function treeViewToggled(toggleState: boolean): void {
 	toggled = toggleState;
-	eventLogger.logFileTreeToggleClicked({ toggled: toggled });
 	updateTreeViewLayout();
 	selectTreeNodeForURL();
 	chrome.storage.sync.set({ treeViewToggled: toggled });