My default pdf viewer is qpdfview. Double-clicking on a pdf file will
open it in qpdfview. Right-clicking the file will have "Open with
qpdfview" at the top of the menu.

However, for a pdf file in the rubbish bin (LM 21.1, Nemo 5.8.5),
double-clicking will open it in "Document Viewer" (Xreader).
Right-clicking will show "Open with Document Viewer" at the top of the
menu. "Open with" as the second choice on the right-click menu does not
offer qpdfview at all in the short list of apps. If I select "Other
application" at the bottom of the RC menu, the first one on the list is:
"Default Application
qpdfview"

Any ideas why the Rubbish Bin behaves this way?

--

Jeff

On 11/16/2023 11:11 AM, Jeff Layman wrote:
> My default pdf viewer is qpdfview. Double-clicking on a pdf file will open it in qpdfview. Right-clicking the file will have "Open with qpdfview" at the top of the menu.
>
> However, for a pdf file in the rubbish bin (LM 21.1, Nemo 5.8.5), double-clicking will open it in "Document Viewer" (Xreader). Right-clicking will show "Open with Document Viewer" at the top of the menu. "Open with" as the second choice on the right-click menu does not offer qpdfview at all in the short list of apps. If I select "Other application" at the bottom of the RC menu, the first one on the list is:
> "Default Application
> qpdfview"
>
> Any ideas why the Rubbish Bin behaves this way?
>

"In nemo when you visit trash you actually visit
trash:/// which is effectively a virtual location displaying
the contents of all the different actual trash folders
associated with your user."

This is the same mechanism that Windows uses.

It's a virtualization, a "projection" of a unified trash bin.
The same "Properties" do not necessarily apply, unless
a developer is clever.

Why virtualization ? Well, nobody wants to physically move a
20GB file, from one partition to another, just to "chart"
the movement into a garbage bin. Consequently, materials
stay on their own partition, and "bookkeeping" is done,
to make a unified view of what collection of items is in the trash.

/home/bullwinkle/.local/share/Trash/files/sample.pdf <=== try opening here, should be qpdfview
Opening "from trash bin", not so much.

If I toss a named item into the trash, and then use the find command,
I can locate the home of trash for my user.

/home/bullwinkle/.local/share/Trash
files
throwthisaway
info
throwthisaway.trashinfo <=== presumably, metadata about where the trash came from
This file can be opened in a text editor.
Paul

On 17/11/2023 18:51, Paul wrote:
> On 11/16/2023 11:11 AM, Jeff Layman wrote:
>> My default pdf viewer is qpdfview. Double-clicking on a pdf file will open it in qpdfview. Right-clicking the file will have "Open with qpdfview" at the top of the menu.
>>
>> However, for a pdf file in the rubbish bin (LM 21.1, Nemo 5.8.5), double-clicking will open it in "Document Viewer" (Xreader). Right-clicking will show "Open with Document Viewer" at the top of the menu. "Open with" as the second choice on the right-click menu does not offer qpdfview at all in the short list of apps. If I select "Other application" at the bottom of the RC menu, the first one on the list is:
>> "Default Application
>> qpdfview"
>>
>> Any ideas why the Rubbish Bin behaves this way?
>>
>
> "In nemo when you visit trash you actually visit
> trash:/// which is effectively a virtual location displaying
> the contents of all the different actual trash folders
> associated with your user."

Interesting. I had "Path bar" toolbar view as default, but when changed
to "Location Entry" it changed from "Rubbish Bin" to "trash:///". I see
that something similar occurs with "Recent", which changes to "recent:///".

>
> This is the same mechanism that Windows uses.
>
> It's a virtualization, a "projection" of a unified trash bin.
> The same "Properties" do not necessarily apply, unless
> a developer is clever.
>
> Why virtualization ? Well, nobody wants to physically move a
> 20GB file, from one partition to another, just to "chart"
> the movement into a garbage bin. Consequently, materials
> stay on their own partition, and "bookkeeping" is done,
> to make a unified view of what collection of items is in the trash.
>
> /home/bullwinkle/.local/share/Trash/files/sample.pdf <=== try opening here, should be qpdfview
> Opening "from trash bin", not so much.

You are quite right! I can understand the requirement for
virtualisation, but it doesn't seem to make sense for different
"properties" to apply. Is "recent:///" a virtual file? It is different
from "trash:///" as it does use qpdfview as default to open pdf files.

> If I toss a named item into the trash, and then use the find command,
> I can locate the home of trash for my user.
>
> /home/bullwinkle/.local/share/Trash
> files
> throwthisaway
> info
> throwthisaway.trashinfo <=== presumably, metadata about where the trash came from
> This file can be opened in a text editor.
> Paul
>

--

Jeff