Merge from vscode merge-base (#22780)

* Revert "Revert "Merge from vscode merge-base (#22769)" (#22779)"

This reverts commit 47a1745180.

* Fix notebook download task

* Remove done call from extensions-ci

extensions/markdown-language-features/src/extension.shared.ts

@@ -0,0 +1,90 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+import { BaseLanguageClient } from 'vscode-languageclient';
+import { CommandManager } from './commandManager';
+import * as commands from './commands/index';
+import { registerPasteSupport } from './languageFeatures/copyPaste';
+import { registerDiagnosticSupport } from './languageFeatures/diagnostics';
+import { registerDropIntoEditorSupport } from './languageFeatures/dropIntoEditor';
+import { registerFindFileReferenceSupport } from './languageFeatures/fileReferences';
+import { ILogger } from './logging';
+import { MarkdownItEngine, MdParsingProvider } from './markdownEngine';
+import { MarkdownContributionProvider } from './markdownExtensions';
+import { MdDocumentRenderer } from './preview/documentRenderer';
+import { MarkdownPreviewManager } from './preview/previewManager';
+import { ContentSecurityPolicyArbiter, ExtensionContentSecurityPolicyArbiter, PreviewSecuritySelector } from './preview/security';
+import { MdTableOfContentsProvider } from './tableOfContents';
+import { loadDefaultTelemetryReporter, TelemetryReporter } from './telemetryReporter';
+import { IMdWorkspace } from './workspace';
+
+export function activateShared(
+	context: vscode.ExtensionContext,
+	client: BaseLanguageClient,
+	workspace: IMdWorkspace,
+	engine: MarkdownItEngine,
+	logger: ILogger,
+	contributions: MarkdownContributionProvider,
+) {
+	const telemetryReporter = loadDefaultTelemetryReporter();
+	context.subscriptions.push(telemetryReporter);
+
+	const cspArbiter = new ExtensionContentSecurityPolicyArbiter(context.globalState, context.workspaceState);
+	const commandManager = new CommandManager();
+
+	const parser = new MdParsingProvider(engine, workspace);
+	const tocProvider = new MdTableOfContentsProvider(parser, workspace, logger);
+	context.subscriptions.push(parser, tocProvider);
+
+	const contentProvider = new MdDocumentRenderer(engine, context, cspArbiter, contributions, logger);
+	const previewManager = new MarkdownPreviewManager(contentProvider, workspace, logger, contributions, tocProvider);
+	context.subscriptions.push(previewManager);
+
+	context.subscriptions.push(registerMarkdownLanguageFeatures(client, commandManager));
+	context.subscriptions.push(registerMarkdownCommands(commandManager, previewManager, telemetryReporter, cspArbiter, engine, tocProvider));
+
+	context.subscriptions.push(vscode.workspace.onDidChangeConfiguration(() => {
+		previewManager.updateConfiguration();
+	}));
+}
+
+function registerMarkdownLanguageFeatures(
+	client: BaseLanguageClient,
+	commandManager: CommandManager,
+): vscode.Disposable {
+	const selector: vscode.DocumentSelector = { language: 'markdown', scheme: '*' };
+	return vscode.Disposable.from(
+		// Language features
+		registerDiagnosticSupport(selector, commandManager),
+		registerDropIntoEditorSupport(selector),
+		registerFindFileReferenceSupport(commandManager, client),
+		registerPasteSupport(selector),
+	);
+}
+
+function registerMarkdownCommands(
+	commandManager: CommandManager,
+	previewManager: MarkdownPreviewManager,
+	telemetryReporter: TelemetryReporter,
+	cspArbiter: ContentSecurityPolicyArbiter,
+	engine: MarkdownItEngine,
+	tocProvider: MdTableOfContentsProvider,
+): vscode.Disposable {
+	const previewSecuritySelector = new PreviewSecuritySelector(cspArbiter, previewManager);
+
+	commandManager.register(new commands.ShowPreviewCommand(previewManager, telemetryReporter));
+	commandManager.register(new commands.ShowPreviewToSideCommand(previewManager, telemetryReporter));
+	commandManager.register(new commands.ShowLockedPreviewToSideCommand(previewManager, telemetryReporter));
+	commandManager.register(new commands.ShowSourceCommand(previewManager));
+	commandManager.register(new commands.RefreshPreviewCommand(previewManager, engine));
+	commandManager.register(new commands.MoveCursorToPositionCommand());
+	commandManager.register(new commands.ShowPreviewSecuritySelectorCommand(previewSecuritySelector, previewManager));
+	commandManager.register(new commands.OpenDocumentLinkCommand(tocProvider));
+	commandManager.register(new commands.ToggleLockCommand(previewManager));
+	commandManager.register(new commands.RenderDocument(engine));
+	commandManager.register(new commands.ReloadPlugins(previewManager, engine));
+	return commandManager;
+}