Hello,

As you know we are invited to the salon InterTice 2013 this week, in
Paris, to represent DDL. The organizers proposed me to make an official
presentation of our project, which of course I accepted! So I have been
offered 1 hour on Wednesday (15h-16h) to tell about and show DDL :),
enough time to present the project, its goals, how DDL looks like, etc.

As a result I started to write a slideshow. Instead of using blotted
office software that always cause problems with placement and fonts, I
decided to use Spip to make the presentation [1]. This way our
presentations can easily be translated into other languages, just like
our website is since presentations are indeed Spip pages whose sections
are the slides. You just have to click on the presentation button near
the page title to start the presentation.

[1]
http://www.doudoulinux.org/spip/francais/en-parler/supports-de-communication/presentations/article/intertice-2013

The presentation is not finished yet but you can start to read and
comment (notions of French required right now ;) ). If you have ideas
about illustrations or screenshots to make it more beautiful, feel free
to send me files. If you notice something that is missing, the same
applies. If you want to totally redesign the slide graphics, please do!

Note that, to really show the slides fullscreen, clicking “fullscreen”
in your web browser will probably not do what you want because parts of
your browser like the address bar will still be displayed. To change
this, in Epiphany, you just have to check “Mask toolbar”. In Firefox
you'll need a dedicated extension to switch to a real fulscreen mode.

Note also that, although the slides are only online, it is possible to
save them using the save feature of your web browser. This works with
Firefox but not with Epiphany that keeps links to the online resources
in the saved page. The only modification to do to a saved page, is to
change the link of the presentation button that still points to the
online page and then would raise an error offline (search for the A tag
of id “spip_presentation_show” and set its href to #presentation).

On the technical side, the trick is to include javascript code [2] and
CSS styles [3] that can turn a standard Spip page into a set of slides.
In the Spip page, you need to insert “<slideshow|bystep=0>” on the very
top of the page to insert the presentation button. Then, when you click
click on this button, the script does the magic and replaces the full
page content by the slides, one by one. There is a navigation toolbar on
the top right corner. You can even use keys to change of slide or quit:
arrow keys (not on Webkit-based browsers), space bar, letters N(ext) and
P(revious), Escape. NB: the inspiration source was a GreaseMonkey script
written for Wikipedia that exactly does that.

[2] http://www.doudoulinux.org/spip/squelettes/spip_slideshow.js
[3] http://www.doudoulinux.org/spip/squelettes/presentation.css

-- 
Cheers,
JM.

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