From b347431c72921c00a0f3cf5098b43baccc8394a3 Mon Sep 17 00:00:00 2001
From: Johannes Rieken <johannes.rieken@gmail.com>
Date: Tue, 12 Oct 2021 16:22:40 +0200
Subject: [PATCH] wip for adding language status for partial mode

---
 src/client/browser/extension.ts | 12 ++++++++++++
 tsconfig.browser.json           |  3 ++-
 types/vscode.proposed.d.ts      | 28 ++++++++++++++++++++++++++++
 3 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/src/client/browser/extension.ts b/src/client/browser/extension.ts
index 284bf1300ada..efc1b114c4e5 100644
--- a/src/client/browser/extension.ts
+++ b/src/client/browser/extension.ts
@@ -109,6 +109,18 @@ async function runPylance(
                     telemetryEvent.Exception,
                 );
             });
+
+            // show language status
+            const item = vscode.languages.createLanguageStatusItem('pylance.status', clientOptions.documentSelector!);
+            item.severity = vscode.LanguageStatusSeverity.Warning;
+            item.text = 'Partial Mode';
+            item.detail = 'Project Wide IntelliSense not available'; // todo tweak wording, add "continue on"-link
+            item.command = {
+                title: 'Learn More',
+                command: 'vscode.open',
+                arguments: [vscode.Uri.parse('https://github.com/microsoft/vscode-python')], // todo define proper aka.ms-link
+            };
+            context.subscriptions.push(item);
         });
 
         const disposable = languageClient.start();
diff --git a/tsconfig.browser.json b/tsconfig.browser.json
index d4aae7e98208..cda0a494e0f2 100644
--- a/tsconfig.browser.json
+++ b/tsconfig.browser.json
@@ -1,6 +1,7 @@
 {
         "extends": "./tsconfig.json",
         "include": [
-            "./src/client/browser"
+            "./src/client/browser",
+            "./types/vscode.proposed.d.ts"
         ]
 }
diff --git a/types/vscode.proposed.d.ts b/types/vscode.proposed.d.ts
index 3f817992a0ef..ee9965bb82ef 100644
--- a/types/vscode.proposed.d.ts
+++ b/types/vscode.proposed.d.ts
@@ -942,6 +942,34 @@ declare module 'vscode' {
     }
 
     //#endregion
+
+    //#region https://github.com/microsoft/vscode/issues/129037
+
+    enum LanguageStatusSeverity {
+        Information = 0,
+        Warning = 1,
+        Error = 2
+    }
+
+    interface LanguageStatusItem {
+        readonly id: string;
+        selector: DocumentSelector;
+        // todo@jrieken replace with boolean ala needsAttention
+        severity: LanguageStatusSeverity;
+        name: string | undefined;
+        text: string;
+        detail?: string;
+        command: Command | undefined;
+        accessibilityInformation?: AccessibilityInformation;
+        dispose(): void;
+    }
+
+    namespace languages {
+        export function createLanguageStatusItem(id: string, selector: DocumentSelector): LanguageStatusItem;
+    }
+
+    //#endregion
+
     //#region proposed test APIs https://github.com/microsoft/vscode/issues/107467
     export namespace tests {
         /**