[okular] [Bug 357743] Radio buttons in a PDF form can not be deselected

[Harald Brennich via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357743

--- Comment #6 from Harald Brennich  ---
That is precisely so. The form contains  groups of entries, some groups being
mandatory and some being optional. For the optional groups, entries should be
left blank - also the radio buttons, meaning no radio button should be
checked/selected. If a user accidentally  clicks a radio button in such a group
of entries, he should be able to undo this.
I think okular really does a great job in handing PDF forms. Being able to
unselect radio buttons would make it even better.

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[okular] [Bug 357743] Radio buttons in a PDF form can not be deselected

[Harald Brennich via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357743

--- Comment #4 from Harald Brennich  ---
Yes, normally when you have radio buttons you deselect one option by choosing
another. 
But there are forms - as in the example I have given you - where a selection
should only be made on a condition. If the condition is not met, no option
should be selected. So there also is no preselected option in this part of the
form.
Now if a user accidentally clicks an option, (s)he should be able to undo this.
The user should be able to do so not only while editing the form, but even
after storing the document and reediting it after discovering the error.
Mind, it is not primarily a bug of okular but an error the user made. However,
it currently really  can be tedious to fix such errors, so it would be a great
help if radio buttons could be unselected without selecting another one.

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[okular] [Bug 357741] After saving a PDF with a completed form, opening the original PDF also shows the completed form

[Harald Brennich via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357741

--- Comment #2 from Harald Brennich  ---
These two bugs may be related, but they are not the same. Bug 267350 finds
fault with the storing of data in a cache. 
This bug finds fault with the retrieval of modified data from a cache although
the user wants to open the unmodified PDF document.

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[okular] [Bug 357743] Radio buttons in a PDF form can not be deselected

[Harald Brennich via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357743

--- Comment #2 from Harald Brennich  ---
Created attachment 96580
  --> https://bugs.kde.org/attachment.cgi?id=96580=edit
PDF document containing a form with radio buttons

There are several radio buttons in this document, for instance on line 14

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[okular] [Bug 357741] New: After saving a PDF with a completed form, opening the original PDF also shows the completed form

[Harald Brennich via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357741

Bug ID: 357741
   Summary: After saving a PDF with a completed form, opening the
original PDF also shows the completed form
   Product: okular
   Version: 0.21.3
  Platform: openSUSE RPMs
OS: Linux
Status: UNCONFIRMED
  Severity: normal
  Priority: NOR
 Component: PDF backend
  Assignee: okular-de...@kde.org
  Reporter: harald.brenn...@gmx.de

After entering data into a form and saving the file (with a new name), when
opening the original file the modified form is shown.

Reproducible: Always

Steps to Reproduce:
1. Download a PDF containing a form, for instance
"http://www.finanzamt.bayern.de/Informationen/Formulare/Weitere_Themen_A_bis_Z/Erbschaft-_und_Schenkungsteuer/Ab_2009/Erbschaftsteuererklarung-SEPA.pdf;
2. Open the PDF and enter some data into the form
3. Save the file with another name
4. Open the original file


Actual Results:  
 The modified form is shown

Expected Results:  
The original form should be shown

There is a workaround: Remove the the references to the original file from
.kde4/share/apps/okular/docdata/

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[okular] [Bug 357743] New: Radio buttons in a PDF form can not be deselected

[Harald Brennich via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=357743

Bug ID: 357743
   Summary: Radio buttons in a PDF form can not be deselected
   Product: okular
   Version: 0.21.3
  Platform: Other
OS: Linux
Status: UNCONFIRMED
  Severity: wishlist
  Priority: NOR
 Component: PDF backend
  Assignee: okular-de...@kde.org
  Reporter: harald.brenn...@gmx.de

There are PDF forms that contain parts that should be modified only if
necessary. When a user makes the error of selecting a radio button in that
form, this selection can not be undone. 

Reproducible: Always

Steps to Reproduce:
1.Open a PDF form containing radio buttons
2.Click a button


Actual Results:  
The selected button is marked. The mark can be removed only by clicking another
radio button of the button group.

Expected Results:  
It should be possible to deselect a radio button without selecting another
button, for instance by toggling the selection

Although this is no bug, it can be really tedious for the user to fix an error
(s)he has made: Go back to a version of the PDF document where the radio button
not has been selected, and then enter all the data again...

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