1 files changed, 42 insertions, 1 deletions

diff --git a/editors/code/src/ctx.ts b/editors/code/src/ctx.ts
index 41df11991..6e767babf 100644
--- a/editors/code/src/ctx.ts
+++ b/editors/code/src/ctx.ts
@@ -1,9 +1,11 @@
 import * as vscode from 'vscode';
 import * as lc from 'vscode-languageclient';
+import * as ra from './lsp_ext';
 
 import { Config } from './config';
 import { createClient } from './client';
 import { isRustEditor, RustEditor } from './util';
+import { Status } from './lsp_ext';
 
 export class Ctx {
     private constructor(
@@ -11,6 +13,7 @@ export class Ctx {
         private readonly extCtx: vscode.ExtensionContext,
         readonly client: lc.LanguageClient,
         readonly serverPath: string,
+        readonly statusBar: vscode.StatusBarItem,
     ) {
 
     }
@@ -22,9 +25,18 @@ export class Ctx {
         cwd: string,
     ): Promise<Ctx> {
         const client = createClient(serverPath, cwd);
-        const res = new Ctx(config, extCtx, client, serverPath);
+
+        const statusBar = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Left);
+        extCtx.subscriptions.push(statusBar);
+        statusBar.text = "rust-analyzer";
+        statusBar.tooltip = "ready";
+        statusBar.show();
+
+        const res = new Ctx(config, extCtx, client, serverPath, statusBar);
+
         res.pushCleanup(client.start());
         await client.onReady();
+        client.onNotification(ra.status, (status) => res.setStatus(status));
         return res;
     }
 
@@ -54,6 +66,35 @@ export class Ctx {
         return this.extCtx.subscriptions;
     }
 
+    setStatus(status: Status) {
+        switch (status) {
+            case "loading":
+                this.statusBar.text = "$(sync~spin) rust-analyzer";
+                this.statusBar.tooltip = "Loading the project";
+                this.statusBar.command = undefined;
+                this.statusBar.color = undefined;
+                break;
+            case "ready":
+                this.statusBar.text = "rust-analyzer";
+                this.statusBar.tooltip = "Ready";
+                this.statusBar.command = undefined;
+                this.statusBar.color = undefined;
+                break;
+            case "invalid":
+                this.statusBar.text = "$(error) rust-analyzer";
+                this.statusBar.tooltip = "Failed to load the project";
+                this.statusBar.command = undefined;
+                this.statusBar.color = new vscode.ThemeColor("notificationsErrorIcon.foreground");
+                break;
+            case "needsReload":
+                this.statusBar.text = "$(warning) rust-analyzer";
+                this.statusBar.tooltip = "Click to reload";
+                this.statusBar.command = "rust-analyzer.reloadWorkspace";
+                this.statusBar.color = new vscode.ThemeColor("notificationsWarningIcon.foreground");
+                break;
+        }
+    }
+
     pushCleanup(d: Disposable) {
         this.extCtx.subscriptions.push(d);
     }