Follow Me Slide Show Integration

This post is about a new feature introduced in Collabora Online, which is integrated in Nextcloud Talk. 

About the feature

In my previous blog, I talked about the development of the new Follow Me Slideshow. This feature is now integrated with Nextcloud Talk, allowing you to seamlessly start the presentation during meetings.

Thanks to NLnet Foundation for sponsoring this work.


Working of the feature

To use this feature in Nextcloud, you now get a new button inside the smart picker, which asks you to select the presentation you wish to start as a follow-me slideshow and generates a link to the slideshow. Based on the file owner presentation leader is defined, and the rest of the joiners become followers automatically.

Let's understand with an example.

  1. The presenter clicks on the "start presentation" button in Smart Picker
    • A pop-up appears which filters and shows only presentation files (i.e, odp, pptx, etc)
    • The presenter then selects any file that they want. 
  2. Presentation link generation
    • A URL is then generated to send as a message in chat.
    • This URL points directly to the follow-me slideshow and will also help in determining the leader.
  3. Join via shared URL
    • When any user clicks on the shared URL first checked if the user has permission to access the file.
    • If the user has permission and is the owner of the file, then they are made the leader of the presentation, and the slideshow is started for them.
    • If the user has permission to access the file and is not the owner of the file, then they automatically become the follower in the slideshow. 
    • Presentation leader info is shared via WOPI checkFileInfo from the server.
In all these processes, whenever a user joins the presentation, they do not have to interact with the document at all to get the slideshow; everything is done automatically to start the slideshow for every user.

Also, all users can join in any order, which means it doesn't matter if followers join before the leader starts the presentation.

Demo:

In the demo, you can see how the presentation is shared and how people can join it. 





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