From cd8cf290346764471617802d2336b42cd5b29374 Mon Sep 17 00:00:00 2001
From: Dirk Baeumer <dirkb@microsoft.com>
Date: Mon, 30 Oct 2017 21:26:37 +0100
Subject: [PATCH] Update the example to demo server side for workspace folder
 change events

---
 lsp-multi-root-sample/server/src/server.ts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lsp-multi-root-sample/server/src/server.ts b/lsp-multi-root-sample/server/src/server.ts
index b9737289..4129b46a 100644
--- a/lsp-multi-root-sample/server/src/server.ts
+++ b/lsp-multi-root-sample/server/src/server.ts
@@ -17,6 +17,7 @@ let connection = createConnection(ProposedFeatures.all);
 let documents: TextDocuments = new TextDocuments();
 
 let hasConfigurationCapability = false;
+let hasWorkspaceFolderCapability = false;
 
 connection.onInitialize((params: InitializeParams) => {
 	function hasClientCapability(...keys: string[]) {
@@ -29,6 +30,7 @@ connection.onInitialize((params: InitializeParams) => {
 	// Does the client support the `workspace/configuration` request? 
 	// If not, we will fall back using global settings
 	hasConfigurationCapability = hasClientCapability('workspace', 'configuration');
+	hasWorkspaceFolderCapability = hasClientCapability('workspace', 'workspaceFolders');
 	return {
 		capabilities: {
 			textDocumentSync: documents.syncKind
@@ -36,6 +38,14 @@ connection.onInitialize((params: InitializeParams) => {
 	}
 });
 
+connection.onInitialized(() => {
+	if (hasWorkspaceFolderCapability) {
+		connection.workspace.onDidChangeWorkspaceFolders((_event) => {
+			connection.console.log('Workspace folder change event received');
+		});
+	}
+});
+
 // The example settings
 interface MultiRootExampleSettings {
 	maxNumberOfProblems: number;