css.experimental.customData

extensions/css-language-features/client/src/cssMain.ts

@@ -9,8 +9,9 @@ import * as fs from 'fs';
 import * as nls from 'vscode-nls';
 const localize = nls.loadMessageBundle();
 
-import { languages, window, commands, ExtensionContext, Range, Position, CompletionItem, CompletionItemKind, TextEdit, SnippetString } from 'vscode';
+import { languages, window, commands, ExtensionContext, Range, Position, CompletionItem, CompletionItemKind, TextEdit, SnippetString, workspace } from 'vscode';
 import { LanguageClient, LanguageClientOptions, ServerOptions, TransportKind, Disposable } from 'vscode-languageclient';
+import { getCustomDataPathsInAllWorkspaces } from './customData';
 
 // this method is called when vs code is activated
 export function activate(context: ExtensionContext) {
@@ -30,13 +31,16 @@ export function activate(context: ExtensionContext) {
 
 	let documentSelector = ['css', 'scss', 'less'];
 
+	let dataPaths = getCustomDataPathsInAllWorkspaces(workspace.workspaceFolders);
+
 	// Options to control the language client
 	let clientOptions: LanguageClientOptions = {
 		documentSelector,
 		synchronize: {
 			configurationSection: ['css', 'scss', 'less']
 		},
 		initializationOptions: {
+			dataPaths
 		}
 	};
 

extensions/css-language-features/client/src/customData.ts

@@ -0,0 +1,39 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as path from 'path';
+import { workspace, WorkspaceFolder } from 'vscode';
+
+interface ExperimentalConfig {
+	experimental?: {
+		customData?: string[]
+	};
+}
+
+export function getCustomDataPathsInAllWorkspaces(workspaceFolders: WorkspaceFolder[] | undefined): string[] {
+	const dataPaths: string[] = [];
+
+	if (!workspaceFolders) {
+		return dataPaths;
+	}
+
+	workspaceFolders.forEach(wf => {
+		const allCssConfig = workspace.getConfiguration(undefined, wf.uri);
+		const wfCSSConfig = allCssConfig.inspect<ExperimentalConfig>('css');
+		if (
+			wfCSSConfig &&
+			wfCSSConfig.workspaceFolderValue &&
+			wfCSSConfig.workspaceFolderValue.experimental &&
+			wfCSSConfig.workspaceFolderValue.experimental.customData
+		) {
+
+			wfCSSConfig.workspaceFolderValue.experimental.customData.forEach(p => [
+				dataPaths.push(path.resolve(wf.uri.fsPath, p))
+			]);
+		}
+	});
+
+	return dataPaths;
+}

extensions/css-language-features/package.json

@@ -32,6 +32,12 @@
         "id": "css",
         "title": "%css.title%",
         "properties": {
+          "css.experimental.customData": {
+            "type": "array",
+            "description": "A list of JSON file paths that define custom CSS data that loads custom properties, at directives, pseudo classes / elements.",
+            "default": [],
+            "scope": "resource"
+          },
           "css.validate": {
             "type": "boolean",
             "scope": "resource",

extensions/css-language-features/server/package.json

@@ -9,7 +9,7 @@
   },
   "main": "./out/cssServerMain",
   "dependencies": {
-    "vscode-css-languageservice": "^3.0.13-next.3",
+    "vscode-css-languageservice": "^3.0.13-next.4",
     "vscode-languageserver": "^5.1.0"
   },
   "devDependencies": {

extensions/css-language-features/server/src/cssServerMain.ts

@@ -7,13 +7,15 @@ import {
 	createConnection, IConnection, TextDocuments, InitializeParams, InitializeResult, ServerCapabilities, ConfigurationRequest, WorkspaceFolder
 } from 'vscode-languageserver';
 import URI from 'vscode-uri';
+import * as fs from 'fs';
 import { TextDocument, CompletionList } from 'vscode-languageserver-types';
 
-import { getCSSLanguageService, getSCSSLanguageService, getLESSLanguageService, LanguageSettings, LanguageService, Stylesheet } from 'vscode-css-languageservice';
+import { getCSSLanguageService, getSCSSLanguageService, getLESSLanguageService, LanguageSettings, LanguageService, Stylesheet, CSSData } from 'vscode-css-languageservice';
 import { getLanguageModelCache } from './languageModelCache';
 import { getPathCompletionParticipant } from './pathCompletion';
 import { formatError, runSafe } from './utils/runner';
 import { getDocumentContext } from './utils/documentContext';
+import { parseCSSData } from './utils/languageFacts';
 
 export interface Settings {
 	css: LanguageSettings;
@@ -50,6 +52,8 @@ let scopedSettingsSupport = false;
 let foldingRangeLimit = Number.MAX_VALUE;
 let workspaceFolders: WorkspaceFolder[];
 
+const languageServices: { [id: string]: LanguageService } = {};
+
 // After the server has started the client sends an initialize request. The server receives
 // in the passed params the rootPath of the workspace plus the client capabilities.
 connection.onInitialize((params: InitializeParams): InitializeResult => {
@@ -61,6 +65,19 @@ connection.onInitialize((params: InitializeParams): InitializeResult => {
 		}
 	}
 
+	const dataPaths: string[] = params.initializationOptions.dataPaths;
+
+	const customDataCollections: CSSData[] = [];
+
+	dataPaths.forEach(p => {
+		if (fs.existsSync(p)) {
+			const data = parseCSSData(fs.readFileSync(p, 'utf-8'));
+			customDataCollections.push(data);
+		} else {
+			return;
+		}
+	});
+
 	function getClientCapability<T>(name: string, def: T) {
 		const keys = name.split('.');
 		let c: any = params.capabilities;
@@ -76,6 +93,10 @@ connection.onInitialize((params: InitializeParams): InitializeResult => {
 	scopedSettingsSupport = !!getClientCapability('workspace.configuration', false);
 	foldingRangeLimit = getClientCapability('textDocument.foldingRange.rangeLimit', Number.MAX_VALUE);
 
+	languageServices.css = getCSSLanguageService({ customDataCollections });
+	languageServices.scss = getSCSSLanguageService({ customDataCollections });
+	languageServices.less = getLESSLanguageService({ customDataCollections });
+
 	const capabilities: ServerCapabilities = {
 		// Tell the client that the server works in FULL text document sync mode
 		textDocumentSync: documents.syncKind,
@@ -96,12 +117,6 @@ connection.onInitialize((params: InitializeParams): InitializeResult => {
 	return { capabilities };
 });
 
-const languageServices: { [id: string]: LanguageService } = {
-	css: getCSSLanguageService(),
-	scss: getSCSSLanguageService(),
-	less: getLESSLanguageService()
-};
-
 function getLanguageService(document: TextDocument) {
 	let service = languageServices[document.languageId];
 	if (!service) {

extensions/css-language-features/server/src/utils/languageFacts.ts

@@ -0,0 +1,23 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { CSSData } from 'vscode-css-languageservice';
+
+export function parseCSSData(source: string): CSSData {
+	let rawData: any;
+
+	try {
+		rawData = JSON.parse(source);
+	} catch (err) {
+		return {};
+	}
+
+	return {
+		properties: rawData.properties || [],
+		atDirectives: rawData.atdirectives || [],
+		pseudoClasses: rawData.pseudoclasses || [],
+		pseudoElements: rawData.pseudoelements || []
+	};
+}

extensions/css-language-features/server/yarn.lock

@@ -229,10 +229,10 @@ supports-color@5.4.0:
   dependencies:
     has-flag "^3.0.0"
 
-vscode-css-languageservice@^3.0.13-next.3:
-  version "3.0.13-next.3"
-  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-3.0.13-next.3.tgz#b9e6f253cace52fbb749d2fe194ae4b196f3543e"
-  integrity sha512-7+7JddZRt8zFRLbqygxJw+GHtbQ5o2YvgEFvi4ixvbUAX6KlY3Yw6CgUUbg9dmBla7h+GbtoDjwiLFV6Oy+SBQ==
+vscode-css-languageservice@^3.0.13-next.4:
+  version "3.0.13-next.4"
+  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-3.0.13-next.4.tgz#3ff1a0fefe7b47c698fd48baf05dcea2b709b99d"
+  integrity sha512-Ji7YpGyGkUZF3KSz1da3dVuKkdGujeDrHE73gRfGxDxb2yE00ifPFueRf1DMXVBSQ4rCeVWzC4gxEhnnLJEc2w==
   dependencies:
     vscode-languageserver-types "^3.13.0"
     vscode-nls "^4.0.0"