XBlock available on multiple pages ?

[François Bouchet]

Hi everyone,

I am currently in the process of learning how to write/deploy XBlocks, using the great documentation available there: http://edx.readthedocs.io/projects/xblock-tutorial/en/latest/index.html

However, I'm under the impression that what I have in mind is not doable through XBlocks so I'd like to double check beforehand with people who have experience in XBlocks. Concretely, my goal would be to deploy a tool available on multiple pages (think like the chat widget on GMail or Facebook). I'm aware that each page one loads within edX reloads everything, so it would have to be reloaded as well, but except for this, would it be doable with XBlocks?

In other words, all the examples of XBlocks I have seen so far are elements one includes inside a given page of the course, but could one be installed at the course level to be visible on every single page of the course? If not, what would be the way to go?

Thanks in advance for your insights!