Pull Request resolves # .

• I read the Generative AI policy and my contribution is either not created with the help of AI or is compatible with the policy and GNU/GPL 2 or later.

Summary of Changes

Currently, it is not easy for third party developers to implement a custom MVCFactory for their extensions. They would have to copy almost all the code of the core class, then add their own additional code on top. See this long discussion if you are interested in understanding the full scope of the issue.

This PR refactors the current code to make using a custom MVCFactory in third party extensions much easier. Instead of copying core code and modifying it, third party developers can now simply extend the core class and add their own logic:

• Want to use a custom MVCFactory implementation? Override createMVCFactory()
• Want to access the component namespace? Use getNamespace()
• Want to inject additional services into MVCFactory so they are available in controllers, models and views? Override injectServicesIntoFactory()
• Want to inject the container into MVCFactory so heavy services are only resolved when actually needed? Override injectServicesIntoFactory() and pass the container through

Also, the change here is backward compatible. For an example, I made an example of using custom MVCFactory to make controller, models, and views classes overridable (mean you can add a new controller class, extends the original class and only override the method you need) at https://github.com/joomla/joomla-cms/compare/6.2-dev...joomdonation:joomla-cms:sample_overridable_mvc_with_com_contact?expand=1

Testing Instructions

• Use Joomla 6.2
• Apply patch and access to random pages on your site (frontend and backend), make sure nothing is broken.

Actual result BEFORE applying this Pull Request

Works

Expected result AFTER applying this Pull Request

Works, easier for third party extensions implement their own custom MVC classes.

Link to documentations

Please select:

• Documentation link for guide.joomla.org:

• No documentation changes for guide.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed