Merge commit 'be3e8236086165e5e45a5a10783823874b3f3ebd' as 'lib/vscode'

lib/vscode/extensions/emmet/src/selectItem.ts

@@ -0,0 +1,37 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+import { validate, parseDocument, isStyleSheet } from './util';
+import { nextItemHTML, prevItemHTML } from './selectItemHTML';
+import { nextItemStylesheet, prevItemStylesheet } from './selectItemStylesheet';
+import { HtmlNode, CssNode } from 'EmmetNode';
+
+export function fetchSelectItem(direction: string): void {
+	if (!validate() || !vscode.window.activeTextEditor) {
+		return;
+	}
+	const editor = vscode.window.activeTextEditor;
+	let rootNode = parseDocument(editor.document);
+	if (!rootNode) {
+		return;
+	}
+
+	let newSelections: vscode.Selection[] = [];
+	editor.selections.forEach(selection => {
+		const selectionStart = selection.isReversed ? selection.active : selection.anchor;
+		const selectionEnd = selection.isReversed ? selection.anchor : selection.active;
+
+		let updatedSelection;
+		if (isStyleSheet(editor.document.languageId)) {
+			updatedSelection = direction === 'next' ? nextItemStylesheet(selectionStart, selectionEnd, <CssNode>rootNode!) : prevItemStylesheet(selectionStart, selectionEnd, <CssNode>rootNode!);
+		} else {
+			updatedSelection = direction === 'next' ? nextItemHTML(selectionStart, selectionEnd, editor, <HtmlNode>rootNode!) : prevItemHTML(selectionStart, selectionEnd, editor, <HtmlNode>rootNode!);
+		}
+		newSelections.push(updatedSelection ? updatedSelection : selection);
+	});
+	editor.selections = newSelections;
+	editor.revealRange(editor.selections[editor.selections.length - 1]);
+}