Forward query arguments during redirect (#990)

* Transfer query arguments over with routing.

* Create a Query Redirect wrapper.

* Add RedirectWithQuery component to SendTransaction index redirect.

* Correct hash-query ordering.

common/Root.tsx

@@ -17,6 +17,7 @@ import { Store } from 'redux';
 import { pollOfflineStatus } from 'actions/config';
 import { AppState } from 'reducers';
 import { RouteNotFound } from 'components/RouteNotFound';
+import { RedirectWithQuery } from 'components/RedirectWithQuery';
 import 'what-input';
 
 interface Props {
@@ -94,14 +95,15 @@ export default class Root extends Component<Props, State> {
 
 const LegacyRoutes = withRouter(props => {
   const { history } = props;
-  const { pathname, hash } = props.location;
+  const { pathname } = props.location;
+  let { hash } = props.location;
 
   if (pathname === '/') {
+    hash = hash.split('?')[0];
     switch (hash) {
       case '#send-transaction':
       case '#offline-transaction':
-        history.push('/send-transaction');
-        break;
+        return <RedirectWithQuery from={pathname} to={'account/send'} />;
       case '#generate-wallet':
         history.push('/');
         break;
@@ -125,9 +127,9 @@ const LegacyRoutes = withRouter(props => {
 
   return (
     <Switch>
-      <Redirect from="/signmsg.html" to="/sign-and-verify-message" />
-      <Redirect from="/helpers.html" to="/helpers" />
-      <Redirect from="/send-transaction" to="/account/send" />
+      <RedirectWithQuery from="/signmsg.html" to="/sign-and-verify-message" />
+      <RedirectWithQuery from="/helpers.html" to="/helpers" />
+      <RedirectWithQuery from="/send-transaction" to={'/account/send'} />
     </Switch>
   );
 });

common/components/RedirectWithQuery.tsx

@@ -0,0 +1,25 @@
+import React from 'react';
+import { Redirect } from 'react-router';
+
+interface RouterProps {
+  from: string;
+  to: string;
+  strictArg?: boolean;
+  exactArg?: boolean;
+  pushArg?: boolean;
+}
+
+export class RedirectWithQuery extends React.Component<RouterProps> {
+  public render() {
+    const { from, to, strictArg, exactArg, pushArg } = this.props;
+    return (
+      <Redirect
+        from={from}
+        to={{ pathname: to, search: window.location.search }}
+        strict={strictArg}
+        exact={exactArg}
+        push={pushArg}
+      />
+    );
+  }
+}

common/containers/Tabs/SendTransaction/index.tsx

@@ -6,7 +6,8 @@ import { UnlockHeader } from 'components/ui';
 import { SideBar } from './components/index';
 import { getWalletInst } from 'selectors/wallet';
 import { AppState } from 'reducers';
-import { RouteComponentProps, Route, Switch, Redirect } from 'react-router';
+import { RouteComponentProps, Route, Switch } from 'react-router';
+import { RedirectWithQuery } from 'components/RedirectWithQuery';
 import {
   WalletInfo,
   RequestPayment,
@@ -68,7 +69,7 @@ class SendTransaction extends React.Component<Props> {
                     exact={true}
                     path={currentPath}
                     render={() => (
-                      <Redirect
+                      <RedirectWithQuery
                         from={`${currentPath}`}
                         to={`${wallet.isReadOnly ? `${currentPath}/info` : `${currentPath}/send`}`}
                       />