https://bugs.kde.org/show_bug.cgi?id=410561
Bug ID: 410561
Summary: When Text Files preview is enabled, .directory &
.flatpakref files should still show their icon instead
of their text contents (i.e. behave like .desktop
files)
Product: dolphin
Version: 19.04.3
Platform: Other
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: general
Assignee: dolphin-bugs-n...@kde.org
Reporter: apmihalopou...@gmail.com
CC: elvis.angelac...@kde.org
Target Milestone: ---
Just like '.desktop' files (henceforth: Desktop) '.directory' (Directory) and
'.flatpakref' (Flatpak) files are also special text files and should be treated
as such, which means they should not generate a content thumbnail when Text
Files preview is enabled in Dolphin, like they do currently, but instead should
keep showing their designated icon.
This issue was affecting Desktop files as well up until very recently (November
2018), but was "mysteriously" fixed in (I presume) KDE Frameworks 5.52, as can
be seen in the closing comments of https://bugs.kde.org/show_bug.cgi?id=220330
Unfortunately, as far a I can tell, the solution to this problem was not
reached through manipulating e.g. the file type but by simply hard-coding the
'.desktop' file extension as special.
My "evidence" for that:
- Directory files are the exact same file type as Desktop files (desktop
configuration file) yet they do generate text thumbnails.
- If a Desktop file's '.desktop' extension is changed to something else (e.g.
'.deskto'), then the Desktop file behaves as a normal text file and erroneously
generates a content preview.
- And of course, if a Directory file's extension is changed from '.directory'
to '.desktop', it properly shows its icon just as if it were a Desktop file
(this won't work for Flatpak files though, since they're a separate mime type).
STEPS TO REPRODUCE
1. Go to Dolphin -> Configure Dolphin -> General -> Previews and disable "Text
Files".
2. Directory & Flatpak files display their icon as they should (see 1st
screenshot)
3. Go to Dolphin -> Configure Dolphin -> General -> Previews and enable "Text
Files".
4. Directory & Flatpak files display their text contents instead of their icons
(see 2nd screenshot)
5. Desktop files are unaffected by the whole process unless their file
extension is changed, as already mentioned.
EXPECTED RESULT
Directory files (found in e.g. ~/.local/share/desktop-directories) and Flatpak
files should both be treated as special text files, just like Desktop files
are, and always show their icons instead of their text contents.
Additionally, all three of these files could/should be completely decoupled
from the Text Files preview option and instead be included in separate preview
entries: Desktop & Directory files in e.g. "Desktop Launchers", and Flatpak
files in "Flatpak" (exactly like Appimage files).
ADDITIONAL INFO:
- The issue with Flatpak files has previously been reported in
https://bugs.kde.org/show_bug.cgi?id=400201, but the bug report has gone stale.
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