impelement registerChatSessionContentProvider capabilities (�microsoft/vscode#259967) (#7698)

Author: joshspicer

src/@types/vscode.proposed.chatSessionsProvider.d.ts

@@ -111,7 +111,6 @@ declare module 'vscode' {
 	}
 
 	export interface ChatSession {
-
 		/**
 		 * The full history of the session
 		 *
@@ -171,7 +170,14 @@ declare module 'vscode' {
 		 *
 		 * @returns A disposable that unregisters the provider when disposed.
 		 */
-		export function registerChatSessionContentProvider(chatSessionType: string, provider: ChatSessionContentProvider): Disposable;
+		export function registerChatSessionContentProvider(chatSessionType: string, provider: ChatSessionContentProvider, capabilities?: ChatSessionCapabilities): Disposable;
+	}
+
+	export interface ChatSessionCapabilities {
+		/**
+		 * Whether sessions can be interrupted and resumed without side-effects.
+		 */
+		supportsInterruptions?: boolean;
 	}
 
 	export interface ChatSessionShowOptions {
@@ -189,4 +195,4 @@ declare module 'vscode' {
 		 */
 		export function showChatSession(chatSessionType: string, sessionId: string, options: ChatSessionShowOptions): Thenable<void>;
 	}
-}
+}

src/extension.ts

@@ -445,7 +445,8 @@ async function deferredActivate(context: vscode.ExtensionContext, showPRControll
 
 		context.subscriptions.push(vscode.chat?.registerChatSessionContentProvider(
 			COPILOT_SWE_AGENT,
-			provider
+			provider,
+			{ supportsInterruptions: true, }
 		));
 	}