[Xerte] rootIcon.preloadMedia(); - Preloading Media

[Paul Beckwith]

Can I preload specific files manually?

 

From: xerte-bounces at lists.nottingham.ac.uk
[mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Julian Tenney
Sent: 15 January 2010 15:48
To: Xerte discussion list
Subject: RE: [Xerte] rootIcon.preloadMedia(); - Preloading Media

 

It isn't going to work on templates. In templates, often the path to the
image is an expression, not the URL, like 

 

{templateData.blah[0].something[0].url}

 

The engine knows nothing of that script - it's Xerte script, and hasn't run
yet - and it can't evaluate the expression until any setup script has run to
create it the various variables / objects referred to.

 

You call preloadMedia()

PreloadMedia finds an expression in the XML: {templateData.pageData[0].url}

 

BUT

 

preloadMedia / the engine cannot evaluate it - templateData does not exist
yet.

 

J

 

From: xerte-bounces at lists.nottingham.ac.uk
[mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Paul Beckwith
Sent: Friday, January 15, 2010 2:04 PM
To: 'Xerte discussion list'
Subject: RE: [Xerte] rootIcon.preloadMedia(); - Preloading Media

 

Nah no joy on onInit, still:   rootIcon.preloadMedia();   ?

 

From: xerte-bounces at lists.nottingham.ac.uk
[mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Julian Tenney
Sent: 15 January 2010 13:48
To: Xerte discussion list
Subject: RE: [Xerte] rootIcon.preloadMedia(); - Preloading Media

 

Try calling it once the models have loaded then, and see what happens.

 

Set up an event handler for onInit and call preloadMedia() from there -
looks like it ought to work.

 

From: xerte-bounces at lists.nottingham.ac.uk
[mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Paul Beckwith
Sent: Friday, January 15, 2010 1:41 PM
To: 'Xerte discussion list'
Subject: RE: [Xerte] rootIcon.preloadMedia(); - Preloading Media

 

Is there a way around it? The lesson loads the rlm files upfront, what's it
doing, just making the pages? 

 

From: xerte-bounces at lists.nottingham.ac.uk
[mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Julian Tenney
Sent: 15 January 2010 11:45
To: Xerte discussion list
Subject: RE: [Xerte] rootIcon.preloadMedia(); - Preloading Media

 

You can't because the models haven't loaded yet, so it isn't clear what
media is required,

 

J

 

From: xerte-bounces at lists.nottingham.ac.uk
[mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Paul Beckwith
Sent: Friday, January 15, 2010 10:17 AM
To: 'Xerte discussion list'
Subject: [Xerte] rootIcon.preloadMedia(); - Preloading Media

 

Hi everyone, 

 

I have used rootIcon.preloadMedia(); before in lessons  which has always
worked fine but can't seem to get it to do anything with the Xerte template
wizard when it's packaged. Is there something I need to do? I'm calling it
in the first script icon in the entry frame.

 

Paul

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