magento/partners-magento2b2b#108: Clear Shopping Cart - Added admin configuration for display of clear shopping cart button

Author: John Carlo Octabio

app/code/Magento/Checkout/Block/Cart/Grid.php

@@ -22,6 +22,11 @@ class Grid extends \Magento\Checkout\Block\Cart
      */
     const XPATH_CONFIG_NUMBER_ITEMS_TO_DISPLAY_PAGER = 'checkout/cart/number_items_to_display_pager';
 
+    /**
+     * Default display setting for clear shopping cart button
+     */
+    const XPATH_CONFIG_ENABLE_CLEAR_SHOPPING_CART = 'checkout/cart/enable_clear_shopping_cart';
+
     /**
      * @var \Magento\Quote\Model\ResourceModel\Quote\Item\Collection
      */
@@ -174,4 +179,17 @@ private function isPagerDisplayedOnPage()
         }
         return $this->isPagerDisplayed;
     }
+
+    /**
+     * Check if clear shopping cart button is enabled
+     *
+     * @return bool
+     */
+    public function isClearShoppingCartEnabled()
+    {
+        return (bool) $this->_scopeConfig->getValue(
+            self::XPATH_CONFIG_ENABLE_CLEAR_SHOPPING_CART,
+            \Magento\Store\Model\ScopeInterface::SCOPE_STORE
+        );
+    }
 }

app/code/Magento/Checkout/etc/adminhtml/system.xml

@@ -48,6 +48,10 @@
                     <label>Show Cross-sell Items in the Shopping Cart</label>
                     <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                 </field>
+                <field id="enable_clear_shopping_cart" translate="label" type="select" sortOrder="20" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
+                    <label>Enable Clear Shopping Cart</label>
+                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
+                </field>
             </group>
             <group id="cart_link" translate="label" sortOrder="3" showInDefault="1" showInWebsite="1">
                 <label>My Cart Link</label>

app/code/Magento/Checkout/etc/config.xml

@@ -19,6 +19,7 @@
                 <redirect_to_cart>0</redirect_to_cart>
                 <number_items_to_display_pager>20</number_items_to_display_pager>
                 <crosssell_enabled>1</crosssell_enabled>
+                <enable_clear_shopping_cart>0</enable_clear_shopping_cart>
             </cart>
             <cart_link>
                 <use_qty>1</use_qty>

app/code/Magento/Checkout/i18n/en_US.csv

@@ -153,6 +153,7 @@ Shipping,Shipping
 "Maximum Number of Items to Display in Order Summary","Maximum Number of Items to Display in Order Summary"
 "Quote Lifetime (days)","Quote Lifetime (days)"
 "After Adding a Product Redirect to Shopping Cart","After Adding a Product Redirect to Shopping Cart"
+"Enable Clear Shopping Cart","Enable Clear Shopping Cart"
 "Number of Items to Display Pager","Number of Items to Display Pager"
 "My Cart Link","My Cart Link"
 "Display Cart Summary","Display Cart Summary"

app/code/Magento/Checkout/view/frontend/templates/cart/form.phtml

@@ -56,14 +56,16 @@
                 <span><?= $block->escapeHtml(__('Continue Shopping')) ?></span>
             </a>
         <?php endif; ?>
-        <button type="button"
-                name="update_cart_action"
-                data-cart-empty=""
-                value="empty_cart"
-                title="<?= $block->escapeHtml(__('Clear Shopping Cart')) ?>"
-                class="action clear" id="empty_cart_button">
-            <span><?= $block->escapeHtml(__('Clear Shopping Cart')) ?></span>
-        </button>
+        <?php if ($block->isClearShoppingCartEnabled()) :?>
+            <button type="button"
+                    name="update_cart_action"
+                    data-cart-empty=""
+                    value="empty_cart"
+                    title="<?= $block->escapeHtml(__('Clear Shopping Cart')) ?>"
+                    class="action clear" id="empty_cart_button">
+                <span><?= $block->escapeHtml(__('Clear Shopping Cart')) ?></span>
+            </button>
+        <?php endif ?>
         <button type="submit"
                 name="update_cart_action"
                 data-cart-item-update=""

app/design/frontend/Magento/luma/web/css/source/_extends.less

@@ -1570,10 +1570,16 @@
         margin-bottom: @indent__base;
 
         .actions.main {
-            .continue,
-            .clear {
+            .continue {
                 display: none;
             }
+
+            .clear {
+                .lib-button-as-link(
+                    @_margin: 0 @indent__base 0 0
+                );
+                font-weight: @font-weight__regular;
+            }
         }
     }
 }