Bug 452430

Summary:	PDF: Find in view mode "facing pages" scroll to incorrect places
Product:	[Applications] okular	Reporter:	Ilario Gottardello <ilario.gottardello>
Component:	PDF backend	Assignee:	Okular developers <okular-devel>
Status:	REOPENED ---
Severity:	normal	CC:	aacid, Yvan.Velenik
Priority:	NOR
Version First Reported In:	21.12.3
Target Milestone:	---
Platform:	Neon
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=501048
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Texas Istruments datasheet

Description Ilario Gottardello 2022-04-09 12:53:49 UTC

When "facing pages" mode is active, searching for a term will scroll to the wrong place (so wrong that you will not see the term on screen). This behaviour is not noted if single page is selected, with the same file.

STEPS TO REPRODUCE
1. Open a pdf file log enough to force find to scroll some pages to the next result
2. Find a term
3. Click Next (or wait for automatic search)

OBSERVED RESULT
You will be scroller on a couple of pages without any occourence of the term. If you scroll a bit manually, the term is on a near page.

EXPECTED RESULT
Shown pages should contain the term.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE NEON LTS
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3

Comment 1 Albert Astals Cid 2022-04-11 22:11:44 UTC

Can not reproduce,  do you have trim margins enabled?

Comment 2 Ilario Gottardello 2022-04-19 08:25:02 UTC

(In reply to Albert Astals Cid from comment #1)
> Can not reproduce,  do you have trim margins enabled?

Well, this is interesting: I cannot reproduce it anymore... I swear I was getting this behaviour, but I don't remember exactly how I got there. I updated my system in these days, I don't know if something corrected the faulting behaviour.

I think I will close the bug report and open a new one if I will observe it again?

Comment 3 Ilario Gottardello 2022-08-02 16:33:58 UTC

Created attachment 151080 [details]
Texas Istruments datasheet

Today I opened this file, it opened with facing pages, I searched for SysCtlClockSet and it brought me on a totally wrong place. I tried to press next and previous but there where no item highlighted on the showed pages (there weren't any occurence of the term). I switched to single page and it went straight to the correct place. I changed it back to double face and it now worked correctly.

Comment 4 Ilario Gottardello 2022-08-02 16:36:07 UTC

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE NEON LTS
KDE Plasma Version: 5.25.3
KDE Frameworks Version: 5.96.0
Qt Version: 5.15.5

Comment 5 Albert Astals Cid 2022-08-11 22:35:47 UTC

Still can not reproduce.

Could you record a video of it failing?

Comment 6 Yvan.Velenik 2024-05-31 12:14:41 UTC

I can confirm this bug when I have both "Facing pages" and "Continuous" enabled and zoom set to "Fit page".