Setup a task buffer, so that we start downloading one image when the user is working on one image

[spMohanty]

No description provided.

[othieno]

Hey @spMohanty, so we do cache at least 2 images (check out:

geotagx-project-template/layout/static/js/geotagx-project.js

Line 47 in 48abdad

// Cache the image for later use.

) however the problem is that users may have been going through the photos rather quickly (e.g. in cases where the photo wasn't relevant to the analysis) in which case the caching couldn't keep up.

Once upon a time, I added a short delay between submitting a photo and having the next one appear (

geotagx-project-template/layout/static/js/geotagx-project.js

Line 134 in 48abdad

setTimeout(function(){

) and this prevents users from going through a project to quickly, giving the caching mechanism a fighting chance :)

My question is, do you want to set up a much larger task buffer (more than 2 images) or does having this short delay between submissions suffice?