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Media Viewer and location map overlays
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This might be complicated to solve and is wiki-specific, so I'm marking it as an enhancement for now.

The English Wikipedia uses a /lot/ of locator maps, which are built by templates that overlay data to build the image (ref:

Media Viewer can't currently handle these image overlays properly, displaying only the "top" of the image (example:

If this can be fixed, that would be wonderful.



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bzimport raised the priority of this task from to Needs Triage.Nov 22 2014, 3:03 AM
bzimport added a project: MediaViewer.
bzimport set Reference to bz62572.
bzimport added a subscriber: Unknown Object (MLST).

I would say wait for T77269: Make it easy to modify which thumbnails are included in the viewer and the wontfix it. Full-screen overlay maps would not be terribly interesting, even if they were displayed properly; displaying them properly would mean showing two images on top of each other, which is a lot of work to do in a robust way (it took a long time to make the resizing, switching, preloading etc. of the image bug-free, now all that would have to be done again), and the whole thing would be very enwiki-specific, which is generally something to avoid.

If card #294 gets implemented (which is straightforward), site admins can just blacklist the overlay maps so that the lightbox does not open when clicking on them. That's a bit inconsistent UX-wise, but probably unavoidable, there are even more evil images (like the maps which display text and markers via absolute CSS positioning) which we definitely want to blacklist.

Gilles added a subscriber: Gilles.

Mass-removing the Multimedia tag from MediaViewer tasks, as this is now being worked on by the Reading department, not Editing's Multimedia team.

Per above, I don't think this can realistically be supported. Such images should be migrated to Maps (Kartographer) instead.

Templates generating such things, can output the class noviewer, to avoid a confusing situation.

Tacsipacsi changed the subtype of this task from "Task" to "Feature Request".Feb 20 2022, 1:15 AM
Tacsipacsi added a subscriber: Tacsipacsi.

For anyone interested in an on-wiki solution, huwiki has a gadget (JS, CSS) that enlarges location maps as expected. It has quite some burnt-in Hungarian strings, which need localization, but it can be used as a starting point.