fileStorage: add export actions

These are largely copied from the editor saveAs actions and allow
exporting ("downloading") a file from the browser local storage to
the file system.

src/notifications/i18n.en.json

@@ -17,7 +17,8 @@
     "fileStorage": {
         "failedToInitialize": "Failed to initial file storage. Changes will not be automatically saved.",
         "failedToRead": "Failed to read file.",
-        "failedToWrite": "Failed to write file."
+        "failedToWrite": "Failed to write file.",
+        "failedToExport": "Failed to export file.'"
     },
     "flashFirmware": {
         "timedOut": "The hub took too long to respond. Restart the hub and try again.",

src/notifications/i18n.ts

@@ -16,6 +16,7 @@ export enum MessageId {
     FileStorageFailedToInitialize = 'fileStorage.failedToInitialize',
     FileStorageFailedToRead = 'fileStorage.failedToRead',
     FileStorageFailedToWrite = 'fileStorage.failedToWrite',
+    FileStorageFailedToExport = 'fileStorage.failedToExport',
     FlashFirmwareTimedOut = 'flashFirmware.timedOut',
     FlashFirmwareBleError = 'flashFirmware.bleError',
     FlashFirmwareDisconnected = 'flashFirmware.disconnected',

src/notifications/sagas.test.ts

@@ -17,6 +17,7 @@ import {
 } from '../ble/actions';
 import { didFailToSaveAs } from '../editor/actions';
 import {
+    fileStorageDidFailToExportFile,
     fileStorageDidFailToInitialize,
     fileStorageDidFailToReadFile,
     fileStorageDidFailToWriteFile,
@@ -90,6 +91,7 @@ test.each([
     fileStorageDidFailToInitialize(new Error('test error')),
     fileStorageDidFailToReadFile('test.file', new Error('test error')),
     fileStorageDidFailToWriteFile('test.file', new Error('test error')),
+    fileStorageDidFailToExportFile('test.file', new Error('test error')),
 ])('actions that should show notification: %o', async (action: AnyAction) => {
     const getToasts = jest.fn().mockReturnValue([]);
     const show = jest.fn();
@@ -122,6 +124,10 @@ test.each([
     didCheckForUpdate(true),
     bleDIServiceDidReceiveFirmwareRevision(firmwareVersion),
     didFailToSaveAs(new DOMException('test message', 'AbortError')),
+    fileStorageDidFailToExportFile(
+        'test.file',
+        new DOMException('test message', 'AbortError'),
+    ),
 ])('actions that should not show a notification: %o', async (action: AnyAction) => {
     const getToasts = jest.fn().mockReturnValue([]);
     const show = jest.fn();

src/notifications/sagas.ts

@@ -19,6 +19,7 @@ import {
 } from '../ble/actions';
 import { didFailToSaveAs } from '../editor/actions';
 import {
+    fileStorageDidFailToExportFile,
     fileStorageDidFailToInitialize,
     fileStorageDidFailToReadFile,
     fileStorageDidFailToWriteFile,
@@ -402,6 +403,17 @@ function* showFileStorageFailToWrite(
     yield* showUnexpectedError(MessageId.FileStorageFailedToWrite, action.error);
 }
 
+function* showFileStorageFailToExport(
+    action: ReturnType<typeof fileStorageDidFailToExportFile>,
+): Generator {
+    if (action.error.name === 'AbortError') {
+        // user clicked cancel button - not an error
+        return;
+    }
+
+    yield* showUnexpectedError(MessageId.FileStorageFailedToExport, action.error);
+}
+
 export default function* (): Generator {
     yield* takeEvery(bleDeviceDidFailToConnect, showBleDeviceDidFailToConnectError);
     yield* takeEvery(bootloaderDidFailToConnect, showBootloaderDidFailToConnectError);
@@ -416,4 +428,5 @@ export default function* (): Generator {
     yield* takeEvery(fileStorageDidFailToInitialize, showFileStorageFailToInitialize);
     yield* takeEvery(fileStorageDidFailToReadFile, showFileStorageFailToRead);
     yield* takeEvery(fileStorageDidFailToWriteFile, showFileStorageFailToWrite);
+    yield* takeEvery(fileStorageDidFailToExportFile, showFileStorageFailToExport);
 }