Currently the user just gets a black screen.
When the image cannot be loaded, inform the user the image doesn't exist.
Also interesting:
Mingle:
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Invalid | None | T78224 MediaViewer URL and history issues (tracking) | |||
| Resolved | simon04 | T77327 Show error message when MMV is opened via an URL hash that points to a non-existing image |
The black screen is cleared up now; an error message would still be useful. (For extra points, point the user to the file page if it exists. See also T77308.)
The black screen is still created on-load and then removed half a second later. This flash can be confusing for users (not sure what it does in terms of accessibility, either).
Not sure what would be a better alternative; if we don't show anything the user thinks it is not working and clicks on other things and we end up with a mess.
FWIW there is an error message now via mw.notify which does not look great but at least gives an idea of what's happening.
Mass-removing the Multimedia tag from MediaViewer tasks, as this is now being worked on by the Reading department, not Editing's Multimedia team.
Currently it shows a black screen which is not a great experience:
https://en.wikipedia.org/wiki/Main_Page#/media/File:Waving_from_Buckinbgham_Palace_Balcony_(52877352018)_(cropped).jpg
Change 921616 had a related patch set uploaded (by Simon04; author: Simon04):
[mediawiki/extensions/MultimediaViewer@master] Notify user and close MMV if image from route not present on page
Change 921616 merged by jenkins-bot:
[mediawiki/extensions/MultimediaViewer@master] Notify user and close MMV if image from route not present on page