Creating a Widget to promote our module anywhere on the FO

First, let’s define what a widget is. From version 1.7 of PrestaShop, the new concept of widgets appeared. Any module can implement a widget interface by adding use PrestaShop\PrestaShop\Core\Module\WidgetInterface; to its main module class and using class ModuleClassName extends Module implements WidgetInterface for the main module class definition.

Following this interface, we have to implement the two following functions:

public function renderWidget($hookName, array $configuration);
public function getWidgetVariables($hookName, array $configuration);

If we don’t declare any hookNameOfTheHook($params) functions in our module, the renderWidget() function will be triggered by the hook’s name provided via the $hookName argument. The $configuration argument will contain the params of the hook trigger.

The getWidgetVariables() function will be used to compute the data to assign to the template...