[html] add embedded JavaScript support

extensions/html/server/src/modes/htmlMode.ts

@@ -0,0 +1,57 @@
+/*---------------------------------------------------------------------------------------------
+ *  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 { LanguageModelCache } from '../languageModelCache';
+import { LanguageService as HTMLLanguageService, HTMLDocument, DocumentContext, FormattingOptions } from 'vscode-html-languageservice';
+import { TextDocument, Position, Range } from 'vscode-languageserver-types';
+import { LanguageMode } from './languageModes';
+
+export function getHTMLMode(htmlLanguageService: HTMLLanguageService, htmlDocuments: LanguageModelCache<HTMLDocument>): LanguageMode {
+	let settings: any = {};
+
+	return {
+		configure(options: any) {
+			settings = options && options.html;
+		},
+		doComplete(document: TextDocument, position: Position) {
+			let options = settings && settings.html && settings.html.suggest;
+			return htmlLanguageService.doComplete(document, position, htmlDocuments.get(document), options);
+		},
+		doHover(document: TextDocument, position: Position) {
+			return htmlLanguageService.doHover(document, position, htmlDocuments.get(document));
+		},
+		findDocumentHighlight(document: TextDocument, position: Position) {
+			return htmlLanguageService.findDocumentHighlights(document, position, htmlDocuments.get(document));
+		},
+		findDocumentLinks(document: TextDocument, documentContext: DocumentContext) {
+			return htmlLanguageService.findDocumentLinks(document, documentContext);
+		},
+		format(document: TextDocument, range: Range, formatParams: FormattingOptions) {
+			let formatSettings = settings && settings.format;
+			if (!formatSettings) {
+				formatSettings = formatParams;
+			} else {
+				formatSettings = merge(formatParams, merge(formatSettings, {}));
+			}
+			return htmlLanguageService.format(document, range, formatSettings);
+		},
+		onDocumentRemoved(document: TextDocument) {
+			htmlDocuments.onDocumentRemoved(document);
+		},
+		dispose() {
+			htmlDocuments.dispose();
+		}
+	};
+};
+
+function merge(src: any, dst: any): any {
+	for (var key in src) {
+		if (src.hasOwnProperty(key)) {
+			dst[key] = src[key];
+		}
+	}
+	return dst;
+}