How to change template file in Joomla 3.x

Question

I am making my own component for Joomla.

Is it possible to change the template file (admin login specifically) in my component, or even additional plugin? I just want to add a button or href in admin login form.

• normal admin login form
• install my extension
• changed admin login form

Any help appreciated. Of course I can edit the template file manually, but I want to make it automatically while installing extension.

Answer 1

You can try to create a system plugin which performs the modification on this page. It's not quite straight forward, but it should work. The AfterRender-Event sounds useful.

https://docs.joomla.org/Plugin/Events/System#onAfterRender