partial fix for #100

src/views/validation-view.jsx

@@ -20,7 +20,8 @@ class ValidationView extends React.PureComponent {
     super(props);
 
     this.state = {
-      code: props.credCode || ''
+      code: props.credCode || '',
+      codeReceived: false
     };
 
     this.handleChange = this.handleChange.bind(this);
@@ -29,6 +30,24 @@ class ValidationView extends React.PureComponent {
     this.handleCancel = this.handleCancel.bind(this);
   }
 
+  static getDerivedStateFromProps(nextProps, prevState) {
+    if (nextProps.credCode != prevState.code) {
+      return {
+        code: nextProps.credCode || '',
+        codeReceived: !!nextProps.credCode
+      };
+    }
+
+    return prevState;
+  }
+
+  componentDidUpdate(prevProps, prevState) {
+    // Submit code audomatically if it's received from the parent.
+    if (this.state.codeReceived && this.state.code != prevState.code) {
+      this.props.onSubmit(this.props.credMethod, this.state.code.trim());
+    }
+  }
+
   handleChange(e) {
     this.setState({code: e.target.value});
   }
@@ -53,7 +72,6 @@ class ValidationView extends React.PureComponent {
     this.props.onCancel();
   }
 
-
   render() {
     const { formatMessage } = this.props.intl;
     const methods = {'email': formatMessage(messages.email), 'tel': formatMessage(messages.phone)};