Collection level previewer

[kglibrarian]

Provide a collection-level files previewer.

• implies ordering of files in the collection (normal difficulty)
• implies ordering of files in the record (hard difficulty)
• idea: show most common file types (by default), show other types by choice, show all by choice

Was distilled from:

Request from Special Collections: can we set up the IIIF viewer for Collections so that a user can swipe through every image in the collection, even if the images come from different records and different resource types?

-Related: when there is no associated image for a record, will there be resource type-specific icon placeholders? (e.g., a document icon, photo icon, movie icon)

There will not be a default icon for a record with no images. That record would be skipped. We are not planning on incorporating an image to the record/search results like in DigitalHub anymore (currently).

Explore Book Viewers (beyond IIIF viewer). Explore options for viewing books, book chapters, or multi-page collections in the repository.

[fenekku]

@kglibrarian would previewing pdfs be good enough for this? Or are we aiming for another format(s) here? Pdf will be covered here: #241

If I understand multi-page collections correctly, those are collection of records where each record is holding a pdf. And what is envisioned here is a means to preview each of these pdfs one after the other as though they make up a book, right? Given how Invenio structures files and records that wouldn't be directly feasible (how do we tell the order, what if the records in the collection don't all have pdfs, a record may now have multiple files, unseemless continuity...). However, creating a record containing all those files together may then provide something close: at least all the files are there and can be switched from one to the next (ordering and continuity are still issues, but less so).

There might be a way to achieve this, but it will probably be custom, so much later.