Liferay 7 - Create a child theme of Classic Theme

2
votes

Using the Liferay IDE, I have the necessity to create a new theme project that extends the Classic Theme of Liferay.

But there isn't a way to override specific templates of Classic Theme (at example with custom header, menu and footer), or add custom CSS, without lose future updates of Classic Theme in next releases of Liferay 7 CE ?

Thank you.

1
javaliferayliferay-7

1 Answers

3
votes

Technically, classic theme is a concrete theme and not even meant to extend - there is no promise of any stability. The next version might use a different design and still call it "classic".

You have two options:

  • make "classic" yours by copying it wholesale (and rename it, of course) - then you're decoupled from future changes to the theme.
  • Or extend it now and deal with (yet) unidentified future changes to it later.

You can still copy the theme once you find out that it's been changed in a non-backwards-compatible way (which probably won't happen before the next version).

The two themes that are explicitly meant to be extended (and that stay reasonably stable) are _unstyled and _styled. And if you look at "classic", it is an extension of _styled.