added clear view button and undo button

package.json

@@ -66,6 +66,10 @@
 				"command": "analysisResults.openInCompView",
 				"title": "Show results in comparison view"
 			},
+			{
+				"command": "analysisResults.clear",
+				"title": "Clear view"
+			},
 			{
                 "command": "analysisResultsCompView.load",
                 "title": "Open analysis results"
@@ -97,10 +101,16 @@
                 },
                 {
                     "command": "analysisResults.openFileInEditor",
-                    "when": "view == analysisResults"
+                    "when": "view == analysisResults",
+					"group": "show"
                 },
 				{
                     "command": "analysisResults.openInCompView",
+                    "when": "view == analysisResults",
+					"group": "show"
+                },
+				{
+                    "command": "analysisResults.clear",
                     "when": "view == analysisResults"
                 },
 				{
@@ -115,7 +125,8 @@
                 },
                 {
                     "command": "analysisResultsCompView.openFileInEditor",
-                    "when": "view == analysisResultsCompView"
+                    "when": "view == analysisResultsCompView",
+					"group": "show"
                 },
 				{
                     "command": "analysisResultsCompView.clearCompView",

src/extension.ts

@@ -223,13 +223,17 @@ export function activate(context: ExtensionContext) {
 	);
 
 	vscode.commands.registerCommand(
-		"analysisResults.openInCompView",
-		() => analysisResultsCompProvider.setJsonObject(analysisResultsProvider.getJsonObject())
+		"analysisResults.clear",
+		() => clearView(analysisResultsProvider)
 	);
-
 	vscode.commands.registerCommand(
 		"analysisResultsCompView.clearCompView",
-		() => analysisResultsCompProvider.setJsonObject(null)
+		() => clearView(analysisResultsCompProvider)
+	);
+
+	vscode.commands.registerCommand(
+		"analysisResults.openInCompView",
+		() => analysisResultsCompProvider.setJsonObject(analysisResultsProvider.getJsonObject())
 	);
     //#endregion
 }
@@ -389,6 +393,18 @@ function openFileInEditor(prov: AnalysisResultsProvider) {
 	}
 }
 
+async function clearView(prov: AnalysisResultsProvider) {
+	if (prov.getJsonObject()) {
+		const jsonObject = prov.getJsonObject();
+		prov.setJsonObject(null);
+
+		var choice = await vscode.window.showInformationMessage("Analysis results view has been cleared.", "Undo");
+		if (choice === "Undo") {
+			prov.setJsonObject(jsonObject);
+		}
+	}
+}
+
 function pathExists(p: string): boolean {
     try {
         fs.accessSync(p);