Merge pull request #2667 from ethcore/jg-gavcoin-no-accounts

Don't allow gavcoin transfer with no balances

js/src/dapps/gavcoin/Actions/actions.js

@@ -18,17 +18,20 @@ import React, { Component, PropTypes } from 'react';
 
 import { RaisedButton } from 'material-ui';
 import ActionAddShoppingCart from 'material-ui/svg-icons/action/add-shopping-cart';
-import AvReplay from 'material-ui/svg-icons/av/replay';
+// import AvReplay from 'material-ui/svg-icons/av/replay';
 import ContentSend from 'material-ui/svg-icons/content/send';
 
 import styles from './actions.css';
 
 export default class Actions extends Component {
   static propTypes = {
-    onAction: PropTypes.func.isRequired
+    onAction: PropTypes.func.isRequired,
+    gavBalance: PropTypes.object.isRequired
   }
 
   render () {
+    const { gavBalance } = this.props;
+
     return (
       <div className={ styles.actions }>
         <RaisedButton
@@ -38,27 +41,33 @@ export default class Actions extends Component {
           primary
           onTouchTap={ this.onBuyIn } />
         <RaisedButton
+          disabled={ !gavBalance || gavBalance.eq(0) }
           className={ styles.button }
           icon={ <ContentSend /> }
           label='send coins'
           primary
           onTouchTap={ this.onTransfer } />
-        <RaisedButton
-          className={ styles.button }
-          icon={ <AvReplay /> }
-          label='claim refund'
-          primary
-          onTouchTap={ this.onRefund } />
       </div>
     );
+
+    // <RaisedButton
+    //   className={ styles.button }
+    //   icon={ <AvReplay /> }
+    //   label='claim refund'
+    //   primary
+    //   onTouchTap={ this.onRefund } />
   }
 
   onBuyIn = () => {
     this.props.onAction('BuyIn');
   }
 
   onTransfer = () => {
-    this.props.onAction('Transfer');
+    const { gavBalance } = this.props;
+
+    if (gavBalance && gavBalance.gt(0)) {
+      this.props.onAction('Transfer');
+    }
   }
 
   onRefund = () => {

js/src/dapps/gavcoin/Application/application.js

@@ -83,6 +83,7 @@ export default class Application extends Component {
             accounts={ accounts } />
         </Status>
         <Actions
+          gavBalance={ gavBalance }
           onAction={ this.onAction } />
         <Events
           accounts={ accounts } />