[Owncloud] OC version detection on the client side

[Christian Reiner]

Hi all, 
whilst trying to port my apps to OC-5 I wonder if there is any easy and 
reliable way to detect the running OC version on the client side. So inside js 
code. This is required to adapt the behaviour according to differences between 
the OC versions. 
Especially I think such information should be available without additional 
ajax requests. That is a question of performance. Without such information 
coders tend to evaluate arbitrary "signs" indicating facts like a version. 
That is a bad thing, since it is error prone and everyone implements a 
different approach. Why not include such basic information once and for all? 
It would come practically without performance penalty: 

I suggest to add a few basic settings to be stored inside the DOM tree for 
easy evaluation. Maybe as data attributes to the html node. I for example like 
to add classes to that node indicating global modes of an application. 

Christian Reiner (arkascha)