From c09acd82adb8f2b173fca5fbbaba060bd1b8ba8d Mon Sep 17 00:00:00 2001
From: Sunil Patel <patelsunil42@gmail.com>
Date: Wed, 6 Feb 2019 12:08:57 +0530
Subject: [PATCH 1/2] disable add to cart until page load

---
 .../view/frontend/templates/product/view/addtocart.phtml      | 2 +-
 .../Magento/Catalog/view/frontend/web/js/validate-product.js  | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/code/Magento/Catalog/view/frontend/templates/product/view/addtocart.phtml b/app/code/Magento/Catalog/view/frontend/templates/product/view/addtocart.phtml
index 9c18a18ff5837..fc578c7652419 100644
--- a/app/code/Magento/Catalog/view/frontend/templates/product/view/addtocart.phtml
+++ b/app/code/Magento/Catalog/view/frontend/templates/product/view/addtocart.phtml
@@ -32,7 +32,7 @@
             <button type="submit"
                     title="<?= /* @escapeNotVerified */ $buttonTitle ?>"
                     class="action primary tocart"
-                    id="product-addtocart-button">
+                    id="product-addtocart-button" disabled>
                 <span><?= /* @escapeNotVerified */ $buttonTitle ?></span>
             </button>
             <?= $block->getChildHtml('', true) ?>
diff --git a/app/code/Magento/Catalog/view/frontend/web/js/validate-product.js b/app/code/Magento/Catalog/view/frontend/web/js/validate-product.js
index c0637cb672dc6..ab848aa442f81 100644
--- a/app/code/Magento/Catalog/view/frontend/web/js/validate-product.js
+++ b/app/code/Magento/Catalog/view/frontend/web/js/validate-product.js
@@ -13,7 +13,8 @@ define([
     $.widget('mage.productValidate', {
         options: {
             bindSubmit: false,
-            radioCheckboxClosest: '.nested'
+            radioCheckboxClosest: '.nested',
+            addToCartButtonSelector: '.action.tocart'
         },
 
         /**
@@ -41,6 +42,7 @@ define([
                     return false;
                 }
             });
+            $(this.options.addToCartButtonSelector).attr('disabled',false);
         }
     });
 

From cffe3462bfca3a041360e6aa8ab373889b8d1eff Mon Sep 17 00:00:00 2001
From: Pavel Bystritsky <p.bystritsky@yandex.ru>
Date: Mon, 11 Feb 2019 15:14:09 +0200
Subject: [PATCH 2/2] ENGCOM-4178: Static test fix.

---
 .../Magento/Catalog/view/frontend/web/js/validate-product.js    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/Catalog/view/frontend/web/js/validate-product.js b/app/code/Magento/Catalog/view/frontend/web/js/validate-product.js
index ab848aa442f81..755e777a01f77 100644
--- a/app/code/Magento/Catalog/view/frontend/web/js/validate-product.js
+++ b/app/code/Magento/Catalog/view/frontend/web/js/validate-product.js
@@ -42,7 +42,7 @@ define([
                     return false;
                 }
             });
-            $(this.options.addToCartButtonSelector).attr('disabled',false);
+            $(this.options.addToCartButtonSelector).attr('disabled', false);
         }
     });