Fixes #691 - Keep expand/collapse state on swap

CHANGELOG.md

@@ -34,6 +34,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 ### Fixed
 
 - Fixes [#683](https://github.com/eamodio/vscode-gitlens/issues/683) - log.showSignature leads to stray files being displayed
+- Fixes [#691](https://github.com/eamodio/vscode-gitlens/issues/691) - Auto-expand tree view on Swap Comparison
 - Fixes the behavior of the _Open Line Changes with Previous Revision_ (`gitlens.diffLineWithPrevious`) command to follow the line history much better
 
 ## [9.5.1] - 2019-02-13

src/views/nodes/compareResultsNode.ts

@@ -7,9 +7,9 @@ import { log, Strings } from '../../system';
 import { CompareView } from '../compareView';
 import { CommitsQueryResults, ResultsCommitsNode } from './resultsCommitsNode';
 import { ResultsFilesNode } from './resultsFilesNode';
-import { ResourceType, ViewNode } from './viewNode';
+import { ResourceType, SubscribeableViewNode, ViewNode } from './viewNode';
 
-export class CompareResultsNode extends ViewNode<CompareView> {
+export class CompareResultsNode extends SubscribeableViewNode<CompareView> {
     constructor(
         view: CompareView,
         public readonly repoPath: string,
@@ -52,7 +52,7 @@ export class CompareResultsNode extends ViewNode {
             description = (repo && repo.formattedName) || this.uri.repoPath;
         }
 
-        const item = new TreeItem(this.label, TreeItemCollapsibleState.Collapsed);
+        const item = new TreeItem(this.label, this._state || TreeItemCollapsibleState.Collapsed);
         item.contextValue = ResourceType.CompareResults;
         if (this._pinned) {
             item.contextValue += '+pinned';
@@ -118,6 +118,10 @@ export class CompareResultsNode extends ViewNode {
         this.view.triggerNodeChange(this);
     }
 
+    protected subscribe() {
+        return undefined;
+    }
+
     private async getCommitsQuery(maxCount: number | undefined): Promise<CommitsQueryResults> {
         const log = await Container.git.getLog(this.uri.repoPath!, {
             maxCount: maxCount,