Working on adding comment api

src/vs/workbench/api/node/extHostComments.ts

@@ -0,0 +1,76 @@
+/*---------------------------------------------------------------------------------------------
+*  Copyright (c) Microsoft Corporation. All rights reserved.
+*  Licensed under the MIT License. See License.txt in the project root for license information.
+*--------------------------------------------------------------------------------------------*/
+'use strict';
+
+import { asWinJsPromise } from 'vs/base/common/async';
+import { values } from 'vs/base/common/map';
+import URI, { UriComponents } from 'vs/base/common/uri';
+import { TPromise } from 'vs/base/common/winjs.base';
+import * as modes from 'vs/editor/common/modes';
+import { ExtHostDocuments } from 'vs/workbench/api/node/extHostDocuments';
+import * as vscode from 'vscode';
+import { flatten } from '../../../base/common/arrays';
+import { ExtHostCommentsShape, IMainContext, MainContext, MainThreadCommentsShape } from './extHost.protocol';
+
+import * as extHostTypeConverter from 'vs/workbench/api/node/extHostTypeConverters';
+
+
+export class ExtHostComments implements ExtHostCommentsShape {
+	private static handlePool = 0;
+
+	private _proxy: MainThreadCommentsShape;
+
+	private _providers = new Map<number, vscode.CommentProvider>();
+
+	constructor(
+		mainContext: IMainContext,
+		private readonly _documents: ExtHostDocuments,
+	) {
+		this._proxy = mainContext.getProxy(MainContext.MainThreadComments);
+	}
+
+	registerCommentProvider(
+		provider: vscode.CommentProvider
+	): vscode.Disposable {
+		const handle = ExtHostComments.handlePool++;
+		this._providers.set(handle, provider);
+
+		this._proxy.$registerCommentProvider(handle);
+		return {
+			dispose: () => {
+				this._proxy.$unregisterCommentProvider(handle);
+				this._providers.delete(handle);
+			}
+		};
+	}
+
+	$providerComments(handle: number, uri: UriComponents): TPromise<modes.CommentThread[]> {
+		const data = this._documents.getDocumentData(URI.revive(uri));
+		if (!data || !data.document) {
+			return TPromise.as([]);
+		}
+
+		return asWinJsPromise(token => {
+			const allProviderResults = values(this._providers).map(provider => provider.provideComments(data.document, token));
+			return TPromise.join(allProviderResults);
+		})
+			.then(flatten)
+			.then(comments => comments.map(convertCommentThread));
+	}
+}
+
+function convertCommentThread(vscodeCommentThread: vscode.CommentThread): modes.CommentThread {
+	return {
+		range: extHostTypeConverter.fromRange(vscodeCommentThread.range),
+		comments: vscodeCommentThread.comments.map(convertComment)
+	};
+}
+
+function convertComment(vscodeComment: vscode.Comment): modes.Comment {
+	return {
+		body: extHostTypeConverter.MarkdownString.from(vscodeComment.body),
+		userName: vscodeComment.userName
+	};
+}