How does one get the total number of slides?

Apparently there is none, one must manually set a variable to the total number of slides and change that value whenever the number of slides changes...

The most lengthy conversation on the matter seems to be found here:

In that thread they describe the need to manually define such a variable.

Hi Mark,

Thanks for updating your thread here with the link, and welcome to the community! If you need anything else please let us know! 

If you know PHP, you are able to count, how many files are in the folder story_content->slide. This number tells you how many slides you have in published course. 

That's interesting idea, but unfortunately we can't use PHP in our solution

HI Kamil Nowek

How i will know which is the first slide. can u tell me an idea how to identify it

Regards

Saravanan.C

Here is one way to find the total number of slides. Live Chat with Pete told me to: "Preview your entire course, it should show something to the effect of "generating preview for slide xx of xx" ".

First post here.

After plenty of reverse engineering and debugging, you can find the total number of slides viewable in a story.

If you are comfortable with a little custom JavaScript coding for a trigger:

var player = GetPlayer();
player.totalViewSlides; // this return the number you want

player.GetVar("totalViewSlides") // this returns 0 - don't use

The player runs the player.calculateTotalViewSlides method which loops through and increments the player.totalViewSlides variable. As long as the player has time to build, player.totalViewSlides is calculated and exposed.

You could set a global variable through the Triggers panel / Manage project variable button:

totalNumSlides / number / 0

Then set it with a custom JavaScript trigger:

var player = GetPlayer();
var totalNumSlides = player.totalViewSlides;
player.SetVar("totalNumSlides", totalNumSlides);

Now you can use totalNumSlides as needed.

Hopefully this helps someone.

Hi Michael,

Welcome to the community! I love that this type of detail and help is your first post! Hope we'll be seeing more of you around. 

Not knowing entirely how you're using this set up, I did want to point out there is an easy way to find out the total number of slides just as a basic number. If you look at publishing to LMS, one of the tracking options is by slides viewed and you'll be able to choose out of the total number of slides as you see in this screenshot. Now that's super basic - and if you're doing some more custom display based on what slide the user is viewing at that time out of X number of slides - Javascript is definitely the way to go! 

Thanks again for sharing - and feel free to let us know if you need anything else. 

Michael, the line

player.GetVar("totalViewSlides");

gives me an error 

app.min.js:12 resolver::resolvePath - Path did not resolve at: totalViewSlides

thoughts?