[Koko] [Bug 464814] New: Show a confirmation popup when pressing the back button on an edit

[Jack Hill]

https://bugs.kde.org/show_bug.cgi?id=464814

            Bug ID: 464814
           Summary: Show a confirmation popup when pressing the back
                    button on an edit
    Classification: Applications
           Product: Koko
           Version: unspecified
          Platform: Compiled Sources
                OS: Linux
            Status: REPORTED
          Severity: wishlist
          Priority: NOR
         Component: General
          Assignee: unassigned-bugs at kde.org
          Reporter: jackhill3103 at gmail.com
                CC: nate at kde.org
  Target Milestone: ---

SUMMARY
A user may go back by accident, in which case they'll lose whatever edits
they've made. It would be good to have a confirmation dialogue.

STEPS TO REPRODUCE
1. Open an image
2. Click edit in the toolbar
3. Do one of the edits
4. Click the back button

OBSERVED RESULT
The app goes back to showing the original image

EXPECTED RESULT
There should be an overlay sheet saying something like "Are you sure you want
to discard all changes? Yes/No"

SOFTWARE/OS VERSIONS
Koko: 22.11 built from source
Operating System: openSUSE Tumbleweed 20230123
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.102.0
Qt Version: 5.15.8
Kernel Version: 6.1.7-1-default (64-bit)
Graphics Platform: X11

ADDITIONAL INFORMATION

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