Merge commit 'be3e8236086165e5e45a5a10783823874b3f3ebd' as 'lib/vscode'

lib/vscode/extensions/markdown-language-features/preview-src/settings.ts

@@ -0,0 +1,43 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+export interface PreviewSettings {
+	readonly source: string;
+	readonly line?: number;
+	readonly fragment?: string
+	readonly lineCount: number;
+	readonly scrollPreviewWithEditor?: boolean;
+	readonly scrollEditorWithPreview: boolean;
+	readonly disableSecurityWarnings: boolean;
+	readonly doubleClickToSwitchToEditor: boolean;
+	readonly webviewResourceRoot: string;
+}
+
+let cachedSettings: PreviewSettings | undefined = undefined;
+
+export function getData<T = {}>(key: string): T {
+	const element = document.getElementById('vscode-markdown-preview-data');
+	if (element) {
+		const data = element.getAttribute(key);
+		if (data) {
+			return JSON.parse(data);
+		}
+	}
+
+	throw new Error(`Could not load data for ${key}`);
+}
+
+export function getSettings(): PreviewSettings {
+	if (cachedSettings) {
+		return cachedSettings;
+	}
+
+	cachedSettings = getData('data-settings');
+	if (cachedSettings) {
+		return cachedSettings;
+	}
+
+	throw new Error('Could not load settings');
+}