setData DataTransfers.TEXT multi selection aware

src/vs/workbench/parts/files/electron-browser/views/explorerViewer.ts

@@ -706,12 +706,12 @@ export class FileDragAndDrop extends SimpleFileResourceDragAndDrop {
 			});
 
 			// Apply some datatransfer types to allow for dragging the element outside of the application
+			originalEvent.dataTransfer.setData(DataTransfers.TEXT, sources.map(fs => fs.resource.scheme === 'file' ? getPathLabel(fs.resource) : fs.resource.toString()).join('\n'));
 			if (sources.length === 1) {
 				if (!sources[0].isDirectory) {
 					originalEvent.dataTransfer.setData(DataTransfers.DOWNLOAD_URL, [MIME_BINARY, sources[0].name, sources[0].resource.toString()].join(':'));
 				}
 
-				originalEvent.dataTransfer.setData(DataTransfers.TEXT, getPathLabel(sources[0].resource));
 			} else {
 				originalEvent.dataTransfer.setData(DataTransfers.URLS, JSON.stringify(sources.filter(s => !s.isDirectory).map(s => s.resource.toString())));
 			}