Move markdown preview files to own folder

extensions/markdown-language-features/src/languageFeatures/dropIntoEditor.ts

@@ -0,0 +1,47 @@
+/*---------------------------------------------------------------------------------------------
+ *  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 * as vscode from 'vscode';
+import * as URI from 'vscode-uri';
+
+export function registerDropIntoEditor() {
+	return vscode.workspace.onWillDropOnTextEditor(e => {
+		e.waitUntil((async () => {
+			const urlList = await e.dataTransfer.get('text/uri-list')?.asString();
+			if (!urlList) {
+				return;
+			}
+
+			const uris: vscode.Uri[] = [];
+			for (const resource of urlList.split('\n')) {
+				try {
+					uris.push(vscode.Uri.parse(resource));
+				} catch {
+					// noop
+				}
+			}
+
+			if (!uris.length) {
+				return;
+			}
+
+			const snippet = new vscode.SnippetString();
+			uris.forEach((uri, i) => {
+				const rel = path.relative(URI.Utils.dirname(e.editor.document.uri).fsPath, uri.fsPath);
+
+				snippet.appendText('[');
+				snippet.appendTabstop();
+				snippet.appendText(`](${rel})`);
+
+				if (i <= uris.length - 1 && uris.length > 1) {
+					snippet.appendText(' ');
+				}
+			});
+
+			return e.editor.insertSnippet(snippet, e.position);
+		})());
+	});
+}