[Okular-devel] Review Request 122570: Update session restore/save to account for multiple tabs

[Jonathan Doman]

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https://git.reviewboard.kde.org/r/122570/
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Review request for Okular.


Bugs: 335852
    http://bugs.kde.org/show_bug.cgi?id=335852


Repository: okular


Description
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New Shell logic loops through each tab and saves URLs and active tab index in session config.

Viewport was previously saved in session config, but I opted to remove it because:
1. It complicates the restore logic. It would require either using QMetaObject::invoke or adding functions to ViewerInterface. Also hard to get right since opening a document isn't exactly synchronous.
2. Viewport info is already saved during a graceful shutdown.


Diffs
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  part.h 594eb44113ae130a6fefbf2800af32886aa3cbef 
  part.cpp 36438af1cd1036ee954f80b5359a0cab2c019036 
  shell/shell.h 224acfe023ef8e9cc58b52ddf32068af8937896a 
  shell/shell.cpp f7675fdc8203e90210b8ba82620b19ae69ee43e1 

Diff: https://git.reviewboard.kde.org/r/122570/diff/


Testing
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I was not familiar with session functionality in KDE before working on this bug, so my tests may not represent reality. I used the dbus interface to trigger a session save (org.kde.KSMServerInterface.saveCurrentSession), and then reloaded a session by running `okular --session xyz`, which I think is how KDE does it behind the scenes.

- Restore one or more documents in single window with tabs enabled.
- Restore multiple windows, tabs enabled or disabled.
- Restore session config describing multible tabs, even though tabs are disabled


Thanks,

Jonathan Doman

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