Add possibility To Delete Stocks in Admin Panel

app/code/Magento/Backend/Ui/Component/Control/DeleteButton.php

@@ -0,0 +1,93 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Backend\Ui\Component\Control;
+
+use Magento\Framework\App\RequestInterface;
+use Magento\Framework\UrlInterface;
+use Magento\Framework\View\Element\UiComponent\Control\ButtonProviderInterface;
+
+/**
+ * Represents delete button with pre-configured options
+ * Provide an ability to show confirmation message on click on the "Delete" button
+ *
+ * @api
+ */
+class DeleteButton implements ButtonProviderInterface
+{
+    /**
+     * @var RequestInterface
+     */
+    private $request;
+
+    /**
+     * @var UrlInterface
+     */
+    private $urlBuilder;
+
+    /**
+     * @var string
+     */
+    private $confirmationMessage;
+
+    /**
+     * @var string
+     */
+    private $idFieldName;
+
+    /**
+     * @var string
+     */
+    private $deleteRoutePath;
+
+    /**
+     * @var int
+     */
+    private $sortOrder;
+
+    /**
+     * @param RequestInterface $request
+     * @param UrlInterface $urlBuilder
+     * @param string $confirmationMessage
+     * @param string $idFieldName
+     * @param string $deleteRoutePath
+     * @param int $sortOrder
+     */
+    public function __construct(
+        RequestInterface $request,
+        UrlInterface $urlBuilder,
+        string $confirmationMessage,
+        string $idFieldName,
+        string $deleteRoutePath,
+        int $sortOrder
+    ) {
+        $this->request = $request;
+        $this->urlBuilder = $urlBuilder;
+        $this->confirmationMessage = $confirmationMessage;
+        $this->idFieldName = $idFieldName;
+        $this->deleteRoutePath = $deleteRoutePath;
+        $this->sortOrder = $sortOrder;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getButtonData()
+    {
+        $data = [];
+        $id = $this->request->getParam($this->idFieldName);
+        if (null !== $id) {
+            $url = $this->urlBuilder->getUrl($this->deleteRoutePath);
+            $data = [
+                'label' => __('Delete'),
+                'class' => 'delete',
+                'on_click' =>
+                    "deleteConfirm('{$this->confirmationMessage}', '{$url}', {data:{{$this->idFieldName}:{$id}}})",
+                'sort_order' => $this->sortOrder,
+            ];
+        }
+        return $data;
+    }
+}

app/code/Magento/Inventory/Controller/Adminhtml/Stock/Delete.php

@@ -0,0 +1,71 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Inventory\Controller\Adminhtml\Stock;
+
+use Magento\Backend\App\Action;
+use Magento\Backend\App\Action\Context;
+use Magento\Framework\Exception\CouldNotDeleteException;
+use Magento\Framework\Exception\NoSuchEntityException;
+use Magento\InventoryApi\Api\StockRepositoryInterface;
+use Magento\InventoryApi\Api\Data\StockInterface;
+
+/**
+ * Delete Controller
+ */
+class Delete extends Action
+{
+    /**
+     * @see _isAllowed()
+     */
+    const ADMIN_RESOURCE = 'Magento_Inventory::stock';
+
+    /**
+     * @var StockRepositoryInterface
+     */
+    private $stockRepository;
+
+    /**
+     * @param Context $context
+     * @param StockRepositoryInterface $stockRepository
+     */
+    public function __construct(
+        Context $context,
+        StockRepositoryInterface $stockRepository
+    ) {
+        parent::__construct($context);
+        $this->stockRepository = $stockRepository;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute()
+    {
+        $resultRedirect = $this->resultRedirectFactory->create();
+
+        $stockId = $this->getRequest()->getPost(StockInterface::STOCK_ID);
+        if ($stockId === null) {
+            $this->messageManager->addErrorMessage(__('Wrong request.'));
+            return $resultRedirect->setPath('*/*');
+        }
+
+        try {
+            $this->stockRepository->deleteById($stockId);
+            $this->messageManager->addSuccessMessage(__('The Stock has been deleted.'));
+            $resultRedirect->setPath('*/*');
+        } catch (NoSuchEntityException $e) {
+            $this->messageManager->addErrorMessage(__('Stock with id "%1" does not exist.', $stockId));
+            $resultRedirect->setPath('*/*');
+        } catch (CouldNotDeleteException $e) {
+            $this->messageManager->addErrorMessage($e->getMessage());
+            $resultRedirect->setPath('*/*/edit', [
+                StockInterface::STOCK_ID => $stockId,
+                '_current' => true,
+            ]);
+        }
+        return $resultRedirect;
+    }
+}

app/code/Magento/Inventory/Controller/Adminhtml/Stock/MassDelete.php

@@ -0,0 +1,73 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Inventory\Controller\Adminhtml\Stock;
+
+use Magento\Backend\App\Action;
+use Magento\Backend\App\Action\Context;
+use Magento\Inventory\Ui\Component\MassAction\Filter;
+use Magento\Framework\Exception\CouldNotDeleteException;
+use Magento\InventoryApi\Api\StockRepositoryInterface;
+
+/**
+ * MassDelete Controller
+ */
+class MassDelete extends Action
+{
+    /**
+     * @see _isAllowed()
+     */
+    const ADMIN_RESOURCE = 'Magento_Inventory::stock';
+
+    /**
+     * @var StockRepositoryInterface
+     */
+    private $stockRepository;
+
+    /**
+     * @var Filter
+     */
+    private $massActionFilter;
+
+    /**
+     * @param Context $context
+     * @param StockRepositoryInterface $stockRepository
+     * @param Filter $massActionFilter
+     */
+    public function __construct(
+        Context $context,
+        StockRepositoryInterface $stockRepository,
+        Filter $massActionFilter
+    ) {
+        parent::__construct($context);
+        $this->stockRepository = $stockRepository;
+        $this->massActionFilter = $massActionFilter;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute()
+    {
+        if ($this->getRequest()->isPost() !== true) {
+            $this->messageManager->addErrorMessage(__('Wrong request.'));
+            return $this->resultRedirectFactory->create()->setPath('*/*');
+        }
+
+        $deletedItemsCount = 0;
+        foreach ($this->massActionFilter->getIds() as $id) {
+            try {
+                $this->stockRepository->deleteById($id);
+                $deletedItemsCount++;
+            } catch (CouldNotDeleteException $e) {
+                $errorMessage = __('[ID: %1] ', $id) . $e->getMessage();
+                $this->messageManager->addErrorMessage($errorMessage);
+            }
+        }
+        $this->messageManager->addSuccessMessage(__('You deleted %1 Stock(s).', $deletedItemsCount));
+
+        return $this->resultRedirectFactory->create()->setPath('*/*');
+    }
+}

app/code/Magento/Inventory/Ui/Component/MassAction/Filter.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Inventory\Ui\Component\MassAction;
+
+use Magento\Ui\Component\MassAction\Filter as BaseFilter;
+use Magento\Framework\Api\Search\DocumentInterface;
+
+/**
+ * Temporary solution
+ * @todo Need to remove after fixing the issue
+ * @see https://github.com/magento/magento2/issues/10988
+ */
+class Filter
+{
+    /**
+     * @var BaseFilter
+     */
+    private $filter;
+
+    /**
+     * @param BaseFilter $filter
+     */
+    public function __construct(
+        BaseFilter $filter
+    ) {
+        $this->filter = $filter;
+    }
+
+    /**
+     * Get ids from search filter
+     *
+     * @return array
+     */
+    public function getIds()
+    {
+        $this->filter->applySelectionOnTargetProvider();
+        $component = $this->filter->getComponent();
+        $dataProvider = $component->getContext()->getDataProvider();
+        $searchResult = $dataProvider->getSearchResult();
+
+        return array_map(function (DocumentInterface $item) {
+            return $item->getId();
+        }, $searchResult->getItems());
+    }
+}

app/code/Magento/Inventory/etc/adminhtml/di.xml

@@ -17,6 +17,14 @@
             <argument name="saveTarget" xsi:type="string">inventory_stock_form.inventory_stock_form</argument>
         </arguments>
     </virtualType>
+    <virtualType name="Magento\Inventory\Ui\Component\Control\Stock\DeleteButton" type="Magento\Backend\Ui\Component\Control\DeleteButton">
+        <arguments>
+            <argument name="confirmationMessage" xsi:type="string" translate="true">Are you sure you want to delete this stock?</argument>
+            <argument name="idFieldName" xsi:type="const">Magento\InventoryApi\Api\Data\StockInterface::STOCK_ID</argument>
+            <argument name="deleteRoutePath" xsi:type="string">*/*/delete</argument>
+            <argument name="sortOrder" xsi:type="number">30</argument>
+        </arguments>
+    </virtualType>
     <!-- Product form configurations -->
     <virtualType name="Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\Pool">
         <arguments>

app/code/Magento/Inventory/view/adminhtml/ui_component/inventory_stock_form.xml

@@ -29,6 +29,7 @@
                 <class>reset</class>
                 <label translate="true">Reset</label>
             </button>
+            <button name="delete" class="Magento\Inventory\Ui\Component\Control\Stock\DeleteButton"/>
             <button name="save" class="Magento\Inventory\Ui\Component\Control\Stock\SaveSplitButton"/>
         </buttons>
     </settings>

app/code/Magento/Inventory/view/adminhtml/ui_component/inventory_stock_listing.xml

@@ -57,7 +57,19 @@
                 </templates>
             </settings>
         </filters>
-        <massaction/>
+        <massaction name="listing_massaction" component="Magento_Ui/js/grid/tree-massactions">
+            <action name="delete">
+                <settings>
+                    <confirm>
+                        <message translate="true">Delete selected items?</message>
+                        <title translate="true">Delete items</title>
+                    </confirm>
+                    <url path="inventory/stock/massDelete"/>
+                    <type>delete</type>
+                    <label translate="true">Delete</label>
+                </settings>
+            </action>
+        </massaction>
         <paging name="listing_paging"/>
     </listingToolbar>
     <columns name="inventory_stock_listing_columns">