Hi Jamil!
I did work on a similar projects both in the context of Alfresco Share (4.2.x, 5.0.x CE), and standalone SpringSurf/Aikau applications and here are a few thoughts I can share with you in the context of share to correctly RTL display the application, however this is how I did address this a while back, given the current state of things at the time, and might be not the optimal/best way to do it :
- Styling for leftovers from the YUI era, including CSS, and JS used for styling/positioning; this is doable by extending the surf pages main template and extend it to conditionally set dir to RTL an import an extra lib.ftl with all the css/js to do the necessary overrides on the detection of one of the RTL locales; You might as well need to override some image assets presenting texts/arrow/... Upgrading this part should be as easy as copying over the new lib.ftl/CSS/JS/assets and make the appropriate changes to the main page template in share.
I believe this should be also doable via a Surf extension, but I had really hard time with order of loading and interpreting CSS/JS ...
- Styling Aikau widgets; For this part, I extended the spring-surf mechanism for loading, interpreting & aggregating css/less files to try first <filename>.<locale>.<extension> then fallback to <filename>.<locale-without-country>.<extension> then fallback to <filename>.<extension>, I also needed to add all <filename>.ar.<extension> for several existing Aikau widgets at the time, in order to correctly display them for my locale... I then realized that even though the .css files from Aikau widgets have CSS extensions, they were actually less files, so it would've been possible to contribute changes to the Aikau project introducing new parameterized styling entries (and have them resolving from the main defaults.less file which could start by including locale dependent variable sets) instead of duplicating files to make the necessary changes.
I hope that helps !
