Add isHardware flags (#210)

* Add isHardware flags

* Ledger connection  options

packages/ui-settings/src/defaults/index.ts

@@ -6,6 +6,7 @@ import { Option } from '../types';
 
 import { CRYPTOS } from './crypto';
 import { ENDPOINTS, ENDPOINT_DEFAULT } from './endpoints';
+import { LEDGER_CONN, LEDGER_CONN_DEFAULT } from './ledger';
 import { PREFIXES, PREFIX_DEFAULT } from './ss58';
 import { ICON_DEFAULT, ICON_DEFAULT_HOST, ICONS, UIMODE_DEFAULT, UIMODES, UITHEME_DEFAULT, UITHEMES } from './ui';
 
@@ -43,6 +44,8 @@ export {
   ICONS,
   LANGUAGE_DEFAULT,
   LANGUAGES,
+  LEDGER_CONN_DEFAULT,
+  LEDGER_CONN,
   LOCKING_DEFAULT,
   LOCKING,
   PREFIX_DEFAULT,

packages/ui-settings/src/defaults/ledger.ts

@@ -0,0 +1,25 @@
+// Copyright 2017-2019 @polkadot/ui-settings authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { Option } from '../types';
+
+export const LEDGER_CONN_DEFAULT = 'none';
+
+export const LEDGER_CONN: Option[] = [
+  {
+    info: 'none',
+    text: 'Do not attach Ledger devices',
+    value: 'none'
+  },
+  {
+    info: 'u2f',
+    text: 'Attach Ledger via U2F',
+    value: 'u2f'
+  },
+  {
+    info: 'webusb',
+    text: 'Attach Ledger via WebUSB',
+    value: 'webusb'
+  }
+];