[dolphin] [Bug 495878] Customizing the default view settings doesn't work anymore

[Iyán M. V.]

https://bugs.kde.org/show_bug.cgi?id=495878

--- Comment #68 from Iyán M. V. <me at iyanmv.com> ---
Some thought after reading a bit the source code. I think the issue might come
from a bug in the logic of when to store settings, and when not. It should
check if settings in that folder differ from the global ones, not the default
ones from Dolphin.

These are my global settings, saved by configuring Dolphin to "use common
display style for all folders", modifying the settings to my like (i.e.,
details view, no previews) and then changing back to "remember display style
for each folder"

$ getfattr -d ~/.local/share/dolphin/view_properties/global
# file: home/iyan/.local/share/dolphin/view_properties/global
user.kde.fm.viewproperties#1="[Dolphin]\012PreviewsShown=false\012Timestamp=2025,2,6,22,18,9.49\012Version=4\012ViewMode=1\012"

Since PreviewsShown=false there, I would expect that any directory with
PreviewsShown=true should store this in the filesystem attributes or in the
.directory file. Same goes for ViewMode. It should only be stored if it differs
from ViewMode=1.

What I noticed is that these global settings are ignored, and (I guess?)
default's Dolphin ones are used instead. For example, if I changed
~/Pictures/Wallpapers to details view mode.

$ getfattr -d Pictures/Wallpapers
user.kde.fm.viewproperties#1="[Dolphin]\012PreviewsShown=false\012Timestamp=2025,2,6,22,48,53.577\012Version=4\012ViewMode=1\012"

Notice that there are two things wrong here: PreviewsShown=false should not be
saved, and ViewMode=1 should not be saved.

If I enable previews, then

$ getfattr -d Pictures/Wallpapers
user.kde.fm.viewproperties#1="[Dolphin]\012Timestamp=2025,2,6,22,50,8.382\012Version=4\012ViewMode=1\012"

Again, wrong, because PreviewsShown=true should be saved!

And what happens when I changed both to Icons view and show previews? Bingo!

$ getfattr -d Pictures/Wallpapers
(Nothing!)

When it should, instead, have saved both PreviewsShown=true and the view
mode...

In the source code, the attributes are deleted because boolean allDefault (line
534 in current master) gets set to true.

Hope this helps someone more familiar with Dolphin source code. If I'm not
wrong above (which maybe I am...), I don't understand why is so hard to
reproduce the issue...

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