[dolphin] [Bug 477615] New: Okular and Gwenview Flatpaks can't find remote files when double clicked in Dolphin

[cberlinger]

https://bugs.kde.org/show_bug.cgi?id=477615

            Bug ID: 477615
           Summary: Okular and Gwenview Flatpaks can't find remote files
                    when double clicked in Dolphin
    Classification: Applications
           Product: dolphin
           Version: 23.08.3
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: cberlinger at heritagerd.net
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
Dolphin is possibly not passing file URLs to the flatpaks of Okular and
Gwenview. Opening PDF or image remote files via dolphin fails with error.

STEPS TO REPRODUCE
1. Install Okular/Gwenview from Flathub or Fedora Flatpaks
2. Open Dolphin, connect to SMB or Webdav share
3. Double Click on a remote PDF or image 
4. Get error box.

OBSERVED RESULT
Gwenview and Okular are unable to open the specified file associations when
they are on a remote server provided by Dolphin. Timothée Ravier over on Fedora
Discussion speculated that file URLs were not passed by Dolphin.
https://discussion.fedoraproject.org/t/can-no-longer-open-files-with-okular-or-gwenview-on-a-dolphin-remote-share-smb-webdav-f39-kinoite/96788 

Konsole output for SMB Connection.
Cannot initialize model with data QJsonObject(). missing: QJsonValue(string,
“urls”)
QString::arg: 2 argument(s) missing in org.kde.okular
kf.kio.widgets: Failed to check which JobView API is supported
“org.freedesktop.DBus.Error.ServiceUnknown”
kf.kio.core: couldn’t create worker: “Unknown protocol ‘smb’.”
kf.kio.workers.file: readData() returned -1

Konsole output for WEBDAV Connection.
QString::arg: 2 argument(s) missing in org.kde.okular
kf.kio.widgets: Failed to check which JobView API is supported
“org.freedesktop.DBus.Error.ServiceUnknown”
kf.kio.workers.http: Can’t communicate with kded_kcookiejar!
kf.kio.core: Can’t communicate with kiod_kpasswdserver (for checkAuthInfo)!
kf.kio.core: Can’t communicate with kiod_kpasswdserver (for queryAuthInfo)!
kf.kio.workers.file: readData() returned -1

EXPECTED RESULT
File should open normally regardless of location.

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 39
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.111.0
Qt Version: 5.15.11
Kernel Version: 6.5.12-300.fc39.x86_64 (64-bit)
Graphics Platform: Wayland
Graphics Processor: AMD Radeon RX 480 Graphics
Dolphin Version: 23.08.3

ADDITIONAL INFORMATION

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