PDF.js like PALS

[ckarpinski]

Summary

PDF options in Atla Hyku should be exactly like PALs/Hykucommons:

1. There is a feature flipper that lets you choose which viewer you want to use

2. on each work edit page there are 2 checkboxes, one for "show PDF.js viewer" and one for "show download PDF button" (by choose to use PDF.js and then unchecking that box you can use neither viewer and have a thumbnail and download button only)

3. The PDF in PDF.js is searchable (but not ocr'd)

Non PDF works still use the UV

Atla Hyku would like to Implement pdf.js viewer: https://mozilla.github.io/pdf.js/ and have the feature PALs recently implemented in which there is a feature flipper to switch from UV to PDF.js viewer and a check box on the work form, in which left unchecked, does not use either viewer and only have the download.

Helpful tickets:

• https://github.com/scientist-softserv/palni-palci/issues/125

Acceptance Criteria

• [ ] https://mozilla.github.io/pdf.js/ is an embedded PDF viewer
• [ ] As a user, I can use the viewer feature flipper to switch from UV to PDF.js and vice versa
• [ ] Work form check box is available on the work form
  • [ ] If checked, the viewer selected via the feature flipper displays for a work
  • [ ] If uncheck, the viewer does not show, and instead only the download is available on a work
• [ ] We want the feature flipper (UV/PDF.js)
• [ ] We want the per work turn on or off the viewer or download for PDF.js
• [ ] We want no splitting when using PDF.js
• [ ] Splitting has to happen for the UV in order for the UV to work showing PDF so that should be happening if that option is
• [ ] turn on in the feautre flipper instead of PDF.js

Testing Instructions

• [ ] Ensure PDF.js is the default PDF viewer
  • [ ] Go to Dashboard > Settings > Features
  • [ ] Make sure the PDF.js option is selected
• [ ] Create a work and add a PDF resource
• [ ] Observe that PDF.js is being used instead of the UV to display the PDF resource

[jillpe]

SoftServ QA: ✅ Pass!

[jillpe]

To Do:

Create a spin off ticket to stop pdf splitting

• https://github.com/scientist-softserv/atla-hyku/issues/188

[ShanaLMoore]

Slack Convo: https://assaydepot.slack.com/archives/C031E2NF43T/p1701189832424439

[jillpe]

Acceptance Criteria confirmed by client 11/28/2023:

• [ ] We want the feature flipper (UV/PDF.js)
• [ ] We want the per work turn on or off the viewer or download for PDF.js
• [ ] We want no splitting when using PDF.js
• [ ] Splitting has to happen for the UV in order for the UV to work showing PDF so that should be happening if that option is - [ ] turn on in the feautre flipper instead of PDF.js

[jeremyf]

There is a particular case where QA might appear to fail:

1. Set the Tenant to use UV
2. Create a work with a PDF (this will split the page)
3. Go to the work's page, you'll see the UV
4. Set the Tenant to use PDF.js
5. Refresh the work page, and you should see PDF.js but instead will see the UV.

To work around this (and realistically how most people will experience this):

1. Set the Tenant to use UV
2. Create a work with a PDF
3. Go to the Dashboard
4. Click the work's URL
5. You should see a UV for the PDF
6. Close the work's page
7. Change the tenant to use PDF.js
8. Go to the Dashboard
9. Click the work's URL