Tags list tab?

[v-marinkov]

Is it possible to have a tab called Tags alongside Faces? I use digikam for scanning and tagging my images and I would like to be able to see all my existing tags in Pigallery2 in a single place. It would be great if XMP nested tags are also supported.

That is, to parse the EXIF/XMP of all files and display all tags/keywords. Clicking on one of them would open all photos with that tag, just like faces or saved searches do.

I know the functionality doesn't exist yet and that it has been dismissed here #940, but I am curious whether it is technically possible at all. If yes, could you point me in a direction how to develop it directly in pigallery2 or as a plugin? @bpatrik

Many thanks

EDIT:
Digging a bit in how pigallery2 works, it seems that every "smart" album or filtering is really a search query. Then, a tag list/cloud could very easily be accommodated with a script or a pigallery2 job that crawls all folders, compiles a list of keywords, then saves all searches for each individual keyword. Similar to Librephotos, it would be great if in the admin panel there is also a button to "Delete all automatically created albums" basically undoing this operation until the job is ran again.

@bpatrik What do you think of this approach?