[Widgets] Mass-action delete for Widgets

app/code/Magento/Widget/Controller/Adminhtml/Widget/Instance/MassDelete.php

@@ -0,0 +1,125 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Widget\Controller\Adminhtml\Widget\Instance;
+
+use Magento\Backend\App\Action;
+use Magento\Backend\App\Action\Context;
+use Magento\Backend\Model\View\Result\Redirect;
+use Magento\Framework\App\Action\HttpPostActionInterface;
+use Magento\Framework\App\Response\RedirectInterface;
+use Magento\Framework\Controller\ResultFactory;
+use Magento\Framework\Controller\ResultInterface;
+use Magento\Framework\Exception\NoSuchEntityException;
+use Magento\Widget\Model\DeleteWidgetById;
+
+/**
+ * Class MassDelete
+ */
+class MassDelete extends Action implements HttpPostActionInterface
+{
+    /**
+     * Authorization level of a basic admin session
+     *
+     * @see _isAllowed()
+     */
+    const ADMIN_RESOURCE = 'Magento_Widget::widget_instance';
+
+    /**
+     * @var DeleteWidgetById
+     */
+    private $deleteWidgetById;
+
+    /**
+     * @param Context $context
+     * @param DeleteWidgetById $deleteWidgetById
+     */
+    public function __construct(
+        Context $context,
+        DeleteWidgetById $deleteWidgetById
+    ) {
+        parent::__construct($context);
+        $this->deleteWidgetById = $deleteWidgetById;
+    }
+
+    /**
+     * Execute action
+     *
+     * @return Redirect
+     * @throws \Exception
+     */
+    public function execute(): Redirect
+    {
+        $deletedInstances = 0;
+        $notDeletedInstances = [];
+        /** @var array $instanceIds */
+        $instanceIds = $this->getInstanceIds();
+
+        if (!count($instanceIds)) {
+            $this->messageManager->addErrorMessage(__('No widget instance IDs were provided to be deleted.'));
+
+            /** @var Redirect $resultRedirect */
+            $resultRedirect = $this->getResultPage();
+
+            return $resultRedirect->setPath('*/*/');
+        }
+
+        foreach ($instanceIds as $instanceId) {
+            try {
+                $this->deleteWidgetById->execute((int)$instanceId);
+                $deletedInstances++;
+            } catch (NoSuchEntityException $e) {
+                $notDeletedInstances[] = $instanceId;
+            }
+        }
+
+        if ($deletedInstances) {
+            $this->messageManager->addSuccessMessage(__('A total of %1 record(s) have been deleted.', $deletedInstances));
+        }
+
+        if (count($notDeletedInstances)) {
+            $this->messageManager->addErrorMessage(
+                __(
+                    'Widget(s) with ID(s) %1 were not found',
+                    trim(implode(', ', $notDeletedInstances))
+                )
+            );
+        }
+
+        /** @var Redirect $resultRedirect */
+        $resultRedirect = $this->getResultPage();
+
+        return $resultRedirect->setPath('*/*/');
+    }
+
+    /**
+     * Get instance IDs.
+     *
+     * @return array
+     */
+    private function getInstanceIds(): array
+    {
+        $instanceIds = $this->getRequest()->getParam('delete');
+
+        if (!is_array($instanceIds)) {
+            return [];
+        }
+
+        return $instanceIds;
+    }
+
+    /**
+     * Get result page.
+     *
+     * @return ResultInterface|null
+     */
+    private function getResultPage(): ?ResultInterface
+    {
+        return $this->resultFactory->create(ResultFactory::TYPE_REDIRECT);
+    }
+}

app/code/Magento/Widget/Model/DeleteWidgetById.php

@@ -0,0 +1,76 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Widget\Model;
+
+use Magento\Framework\Exception\NoSuchEntityException;
+use Magento\Widget\Model\ResourceModel\Widget\Instance as InstanceResourceModel;
+use Magento\Widget\Model\Widget\InstanceFactory as WidgetInstanceFactory;
+use Magento\Widget\Model\Widget\Instance as WidgetInstance;
+
+/**
+ * Class DeleteWidgetById
+ */
+class DeleteWidgetById
+{
+    /**
+     * @var InstanceResourceModel
+     */
+    private $resourceModel;
+
+    /**
+     * @var WidgetInstanceFactory|WidgetInstance
+     */
+    private $instanceFactory;
+
+    /**
+     * @param InstanceResourceModel $resourceModel
+     * @param WidgetInstanceFactory $instanceFactory
+     */
+    public function __construct(
+        InstanceResourceModel $resourceModel,
+        WidgetInstanceFactory $instanceFactory
+    ) {
+        $this->resourceModel = $resourceModel;
+        $this->instanceFactory = $instanceFactory;
+    }
+
+    /**
+     * Delete widget instance by given instance ID
+     *
+     * @param int $instanceId
+     * @return void
+     * @throws \Exception
+     */
+    public function execute(int $instanceId) : void
+    {
+        $model = $this->getWidgetById($instanceId);
+
+        $this->resourceModel->delete($model);
+    }
+
+    /**
+     * Get widget instance by given instance ID
+     *
+     * @param int $instanceId
+     * @return WidgetInstance
+     * @throws NoSuchEntityException
+     */
+    private function getWidgetById(int $instanceId): WidgetInstance
+    {
+        /** @var WidgetInstance $widgetInstance */
+        $widgetInstance = $this->instanceFactory->create();
+
+        $this->resourceModel->load($widgetInstance, $instanceId);
+
+        if (!$widgetInstance->getId()) {
+            throw NoSuchEntityException::singleField('instance_id', $instanceId);
+        }
+
+        return $widgetInstance;
+    }
+}

app/code/Magento/Widget/view/adminhtml/layout/adminhtml_widget_instance_block.xml

@@ -15,6 +15,20 @@
                     <argument name="default_dir" xsi:type="string">ASC</argument>
                     <argument name="dataSource" xsi:type="object" shared="false">Magento\Widget\Model\ResourceModel\Widget\Instance\Collection</argument>
                 </arguments>
+                <block class="Magento\Backend\Block\Widget\Grid\Massaction" name="adminhtml.widget.instance.grid.massactions" as="grid.massaction">
+                    <arguments>
+                        <argument name="massaction_id_field" xsi:type="string">instance_id</argument>
+                        <argument name="form_field_name" xsi:type="string">delete</argument>
+                        <argument name="use_select_all" xsi:type="string">1</argument>
+                        <argument name="options" xsi:type="array">
+                            <item name="delete" xsi:type="array">
+                                <item name="label" xsi:type="string" translate="true">Delete</item>
+                                <item name="url" xsi:type="string">*/*/massDelete</item>
+                                <item name="selected" xsi:type="string">0</item>
+                            </item>
+                        </argument>
+                    </arguments>
+                </block>
                 <block class="Magento\Backend\Block\Widget\Grid\ColumnSet" name="adminhtml.widget.instance.grid.columnSet" as="grid.columnSet">
                     <arguments>
                         <argument name="rowUrl" xsi:type="array">