#14: reset captcha if there are errors in form

src/components/auth/BaseAuthBody.jsx

@@ -18,10 +18,21 @@ export default class BaseAuthBody extends Component {
                 payload: PropTypes.object
             })]),
             scopes: PropTypes.array
-        }),
+        }).isRequired,
         user: userShape
     };
 
+    componentWillReceiveProps(nextProps, nextContext) {
+        // TODO: we must not access Form#fields. This is a temporary
+        // solution to reset Captcha, when the form does not handle errors
+        if (nextContext.auth.error
+            && this.form.fields.captcha
+            && nextContext.auth.error !== this.context.auth.error
+        ) {
+            this.form.fields.captcha.reset();
+        }
+    }
+
     renderErrors() {
         return this.context.auth.error
             ? <AuthError error={this.context.auth.error} onClose={this.onClearErrors} />

src/components/auth/PanelTransition.jsx

@@ -241,12 +241,12 @@ class PanelTransition extends Component {
     willLeave = (config) => this.getTransitionStyles(config, {isLeave: true});
 
     /**
-     * @param  {Object} config
+     * @param {object} config
      * @param {string} config.key
-     * @param  {Object} [options]
+     * @param {object} [options]
-     * @param  {Object} [options.isLeave=false] - true, if this is a leave transition
+     * @param {object} [options.isLeave=false] - true, if this is a leave transition
      *
-     * @return {Object}
+     * @return {object}
      */
     getTransitionStyles({key}, options = {}) {
         const {isLeave = false} = options;
@@ -337,7 +337,11 @@ class PanelTransition extends Component {
         };
 
         const backButton = (
-            <button style={sideScrollStyle} type="button" onClick={this.onGoBack} className={panelStyles.headerControl}>
+            <button style={sideScrollStyle}
+                className={panelStyles.headerControl}
+                type="button"
+                onClick={this.onGoBack}
+            >
                 <span className={icons.arrowLeft} />
             </button>
         );
@@ -413,10 +417,10 @@ class PanelTransition extends Component {
 
     /**
      * @param {string} key
-     * @param  {Object} style
+     * @param {object} style
      * @param {number} style.opacitySpring
      *
-     * @return {Object}
+     * @return {object}
      */
     getDefaultTransitionStyles(key, {opacitySpring}) {
         return {
@@ -434,7 +438,7 @@ class PanelTransition extends Component {
      * @param {string} direction='X' - X|Y
      * @param {string} unit='%' - %|px etc
      *
-     * @return {Object}
+     * @return {object}
      */
     translate(value, direction = 'X', unit = '%') {
         return {

src/components/ui/form/Captcha.jsx

@@ -23,10 +23,14 @@ export default class Captcha extends FormInputComponent {
     };
 
     componentDidMount() {
-        setTimeout(() => captcha.render(this.el, {
+        setTimeout(() =>
+            captcha.render(this.el, {
                 skin: this.props.skin,
                 onSetCode: this.setCode
-        }), this.props.delay);
+            })
+            .then((captchaId) => this.captchaId = captchaId),
+            this.props.delay
+        );
     }
 
     render() {
@@ -37,10 +41,12 @@ export default class Captcha extends FormInputComponent {
                 <div className={styles.captchaLoader}>
                     <ComponentLoader />
                 </div>
+
                 <div ref={this.setEl} className={classNames(
                     styles.captcha,
                     styles[`${skin}Captcha`]
                 )} />
+
                 {this.renderError()}
             </div>
         );
@@ -50,5 +56,15 @@ export default class Captcha extends FormInputComponent {
         return this.state && this.state.code;
     }
 
+    reset() {
+        captcha.reset(this.captchaId);
+    }
+
+    setError(error) {
+        super.setError(error);
+
+        this.reset();
+    }
+
     setCode = (code) => this.setState({code});
 }

src/services/captcha.js

@@ -12,7 +12,7 @@ export default {
      * @param {function} options.onSetCode - the callback, that will be called with
      *                                       captcha verification code, after user successfully solves captcha
      *
-     * @return {Promise}
+     * @return {Promise} - resolves to captchaId
      */
     render(el, {skin: theme, onSetCode: callback}) {
         return this.loadApi().then(() =>
@@ -24,6 +24,13 @@ export default {
         );
     },
 
+    /**
+     * @param {string} captchaId - captcha id, returned from render promise
+     */
+    reset(captchaId) {
+        this.loadApi().then(() => window.grecaptcha.reset(captchaId));
+    },
+
     /**
      * @param {stirng} newLang
      *

src/services/errorsDict/errorsDict.js

@@ -77,6 +77,7 @@ const errorsMap = {
     'error.account_already_activated': () => <Message {...messages.accountAlreadyActivated} />,
 
     'error.captcha_required': () => <Message {...messages.captchaRequired} />,
+    'error.captcha_invalid': () => errorsMap['error.captcha_required'](),
 
     suggestResetPassword: () => (
         <span>