整理した

src/client/app/desktop/api/choose-drive-file.ts

@@ -0,0 +1,30 @@
+import { url } from '../../config';
+import MkChooseFileFromDriveWindow from '../views/components/choose-file-from-drive-window.vue';
+
+export default function(opts) {
+	return new Promise((res, rej) => {
+		const o = opts || {};
+
+		if (document.body.clientWidth > 800) {
+			const w = new MkChooseFileFromDriveWindow({
+				propsData: {
+					title: o.title,
+					multiple: o.multiple,
+					initFolder: o.currentFolder
+				}
+			}).$mount();
+			w.$once('selected', file => {
+				res(file);
+			});
+			document.body.appendChild(w.$el);
+		} else {
+			window['cb'] = file => {
+				res(file);
+			};
+
+			window.open(url + '/selectdrive',
+				'choose_drive_window',
+				'height=500, width=800');
+		}
+	});
+}