Magento 2.3 add custom block under each product in category page

Question

I need to overwrite the product listing (category) page, a custom form needs to show after that product information.

So I have found that already an extension is overwriting that page as below

<referenceBlock name="category.products.list">
        <action method="setTemplate">
            <argument name="template" xsi:type="string">Custom_ModuleName::list.phtml</argument>
        </action>
    </referenceBlock>

How to add that custom form after the each products from my custom module? Please advise.

Answer 1

Create di.xml file at /app/code/Vendor/Module/etc/frontend/di.xml :

<type name="Magento\Catalog\Block\Product\ListProduct">
    <plugin name="block-product-list" type="Vender\Module\Plugin\ProductList"/>
</type>

Create Plugin file ProductList.php at /app/code/Vendor/Module/Plugin :

<?php
namespace Vender\Module\Plugin;

class ProductList
{   
    protected $layout;

    public function __construct(
        \Magento\Framework\View\LayoutInterface $layout
    ) {
        $this->layout = $layout;
    }

    public function aroundGetProductDetailsHtml(
        \Magento\Catalog\Block\Product\ListProduct $subject,
        \Closure $proceed,
        \Magento\Catalog\Model\Product $product
    ) {
        return $this->layout->createBlock('Vendor\Moduele\Block\YourBlock')->setProduct($product)->setTemplate('Vendor_Module::yourPhtml.phtml')->toHtml();
    }               
}

UPDATE :

For display in catalog search also you need to create

<virtualType name="Magento\CatalogSearch\Block\SearchResult\ListProduct">
    <plugin name="block-product-list" type="Vendor\Module\Plugin\ProductList" />
</virtualType>

Clean cache and refresh page.