Merge commit 'be3e8236086165e5e45a5a10783823874b3f3ebd' as 'lib/vscode'

lib/vscode/extensions/css-language-features/server/src/customData.ts

@@ -0,0 +1,38 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { ICSSDataProvider, newCSSDataProvider } from 'vscode-css-languageservice';
+import { RequestService } from './requests';
+
+export function fetchDataProviders(dataPaths: string[], requestService: RequestService): Promise<ICSSDataProvider[]> {
+	const providers = dataPaths.map(async p => {
+		try {
+			const content = await requestService.getContent(p);
+			return parseCSSData(content);
+		} catch (e) {
+			return newCSSDataProvider({ version: 1 });
+		}
+	});
+
+	return Promise.all(providers);
+}
+
+function parseCSSData(source: string): ICSSDataProvider {
+	let rawData: any;
+
+	try {
+		rawData = JSON.parse(source);
+	} catch (err) {
+		return newCSSDataProvider({ version: 1 });
+	}
+
+	return newCSSDataProvider({
+		version: rawData.version || 1,
+		properties: rawData.properties || [],
+		atDirectives: rawData.atDirectives || [],
+		pseudoClasses: rawData.pseudoClasses || [],
+		pseudoElements: rawData.pseudoElements || []
+	});
+}