[Libreoffice-bugs] [Bug 137454] New: Wrong reverse object animation order during presentation

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=137454

            Bug ID: 137454
           Summary: Wrong reverse object animation order during
                    presentation
           Product: LibreOffice
           Version: 7.0.1.2 release
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Impress
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: kwon-young.choi at hotmail.fr

Description:
My goal is to add multiple objects in a single slide that should be revealed
one after the other, in a certain order.

In presentation mode, the revealing part is working where each object appears
one after the other.
However, if I want to play the animation in reverse (typically with the left
arrow), the animation are not played in reverse order where each object
disappear starting from the last one displayed.

Specifically, with the minimal reproducer that I have linked with the report,
the texts: toto, tata, titi should appear one after the other.
However, undoing once (left arrow) will only show the text tata and undoing
twice will remove all text.

Steps to Reproduce:
1. Go into presentation mode (F5)
2. Forward animation (right arrow)
3. Forward animation (right arrow)
4. Forward animation (right arrow)
5. Backward animation (left arrow)
6. Backward animation (left arrow)
7. Backward animation (left arrow)

Actual Results:
1. Empty slide
2. Toto
3. Toto Tata
4. Toto Tata Titi
5. Tata
6. Empty Slide

Expected Results:
1. Empty slide
2. Toto
3. Toto Tata
4. Toto Tata Titi
5. Toto Tata
6. Toto
7. Empty Slide


Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
Version: 7.0.1.2
Build ID: 00(Build:2)
CPU threads: 8; OS: Linux 5.8; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
=7.0.1-1
Calc: threaded

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