Verify preview input data, remove "Sender" inputs

assets/js/src/newsletter_editor/components/sidebar.js

@@ -242,10 +242,6 @@ define([
       console.log('trying to send a preview');
       // get form data
       var data = {
-        sender: {
-          name: this.$('#mailpoet_preview_from_name').val(),
-          address: this.$('#mailpoet_preview_from_email').val(),
-        },
         subscriber: this.$('#mailpoet_preview_to_email').val(),
         id: App.getNewsletter().get('id'),
       };
@@ -258,7 +254,7 @@ define([
           MailPoet.Notice.success(App.getConfig().get('translations.newsletterPreviewSent'));
         } else {
           if (_.isArray(response.errors)) {
-            MailPoet.Notice.error("\n".join(response.errors));
+            MailPoet.Notice.error(response.errors.join("\n"));
           } else {
             MailPoet.Notice.error(App.getConfig().get('translations.newsletterPreviewFailedToSend'));
           }

lib/Router/Newsletters.php

@@ -225,7 +225,14 @@ class Newsletters {
       wp_send_json(array(
         'result' => false
       ));
-    } else {
+    }
+    if (empty($data['subscriber'])) {
+      wp_send_json(array(
+        'result' => false,
+        'errors' => array(__('Please specify receiver information')),
+      ));
+    }
+
     $newsletter = $newsletter->asArray();
 
     $renderer = new Renderer($newsletter);
@@ -236,11 +243,7 @@ class Newsletters {
     );
 
     try {
-        $mailer = new \MailPoet\Mailer\Mailer(
-          false,
-          (isset($data['sender'])) ? $data['sender'] : false,
-          false
-        );
+      $mailer = new \MailPoet\Mailer\Mailer(false, false, false);
 
       wp_send_json(array(
         'result' => $mailer->send($newsletter, $data['subscriber'])
@@ -252,7 +255,6 @@ class Newsletters {
       ));
     }
   }
-  }
 
   function listing($data = array()) {
     $listing = new Listing\Handler(

views/newsletter/templates/components/sidebar/preview.hbs

@@ -1,20 +1,6 @@
 <div class="handlediv" title="Click to toggle"><br></div>
 <h3><%= __('Preview') %></h3>
 <div class="mailpoet_region_content">
-    <div class="mailpoet_form_field">
-        <label>
-            <%= __('From name') %><br />
-            <input id="mailpoet_preview_from_name" class="mailpoet_input mailpoet_input_full" type="text" name="from_name" value="{{ from_name }}" />
-        </label>
-    </div>
-
-    <div class="mailpoet_form_field">
-        <label>
-            <%= __('From email') %><br />
-            <input id="mailpoet_preview_from_email" class="mailpoet_input mailpoet_input_full" type="text" name="from_email" value="{{ from_email }}" />
-        </label>
-    </div>
-
     <div class="mailpoet_form_field">
         <label>
             <%= __('Send preview to') %><br />