Bug 103918 - Keys for "back" in presentation don't work when using automatic transitions
Summary: Keys for "back" in presentation don't work when using automatic transitions
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
(earliest affected)
3.5.0 release
Hardware: x86-64 (AMD64) All
: medium minor
Assignee: Not Assigned
Depends on:
Blocks: Slide-Transitions
  Show dependency treegraph
Reported: 2016-11-14 03:47 UTC by Mike C. Fletcher
Modified: 2021-04-02 03:46 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:
Regression By:

Presentation that fails to reverse (10.41 KB, application/vnd.oasis.opendocument.presentation)
2016-11-14 03:47 UTC, Mike C. Fletcher

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Description Mike C. Fletcher 2016-11-14 03:47:27 UTC
Created attachment 128736 [details]
Presentation that fails to reverse

While doing a presentation today where most slides had an auto-advance, I discovered that most of the documented keys for "Back" in a presentation are all non-functional, and instead advance the presentation (which is rather sub-optimal):

* up arrow
* page-up (actually Fn+Up)
* ctrl-page-up (actually Fn+Ctrl+Up)
* backspace

experimenting this evening, the *only* key which actually works to move to the previous page is:

* alt-page-up (actually Fn+Alt+Up)

So my guess is that the "transition" of switching to the next page is being played and advancing the slide instead of moving to the previous slide. I can easily recreate the effect by just adding an "advance to next slide after 20s" transition to a presentation.

Without automatic advance, the key-bindings all work fine.

Steps to reproduce:

* start the presentation, move forward, try to move back using any of the above key-bindings

Platform Kubuntu 16.10, up-to-date LibreOffice packages (1:5.2.2-0ubuntu2), Dell XPS 15 9550

Sample file that demonstrates the failure is attached.
Comment 1 Buovjaga 2016-11-24 10:03:45 UTC

Win 7 Pro 64-bit Version:
Build ID: 172325bedf69bbc162f3c1948264451c90c105a3
CPU Threads: 4; OS Version: Windows 6.1; UI Render: default; Layout Engine: new; 
TinderBox: Win-x86@39, Branch:master, Time: 2016-11-21_05:26:40
Locale: fi-FI (fi_FI); Calc: group

LibreOffice 3.5.0rc3 
Build ID: 7e68ba2-a744ebf-1f241b7-c506db1-7d53735
Comment 2 Keith 2018-04-01 02:22:12 UTC
Confirmed again

Version: (x64)
Build ID: 5c7ba324eb1b66b367c3f00164044a80778b8871
CPU threads: 2; OS: Windows 6.1; UI render: default; 
TinderBox: Win-x86_64@42, Branch:master, Time: 2018-03-31_17:20:23
Locale: en-US (en_US); Calc: group

I think I see what it's doing: the primary function of the "back" buttons is "previous *effect*", and it is incorrectly seeing the automatic advance as an "effect". I'm guessing that since the timer starts when the slide first appears, that causes it to count as "previous" even though it hasn't actually completed yet.
Comment 3 QA Administrators 2019-04-02 02:49:19 UTC Comment hidden (obsolete)
Comment 4 QA Administrators 2021-04-02 03:46:56 UTC
Dear Mike C. Fletcher,

To make sure we're focusing on the bugs that affect our users today, LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed bugs which have not been touched for over a year.

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