Bug 143082 - SVG export of slide shows blank in some apps, hides objects with <g visibility="hidden">
Summary: SVG export of slide shows blank in some apps, hides objects with <g visibilit...
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
5.2.0.4 release
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: bibisected, bisected, filter:svg, regression
Depends on:
Blocks: SVG-Save
  Show dependency treegraph
 
Reported: 2021-06-26 13:57 UTC by Stéphane Guillou (stragu)
Modified: 2026-01-02 03:11 UTC (History)
6 users (show)

See Also:
Crash report or crash signature:


Attachments
example slide to export from Impress to SVG (15.08 KB, application/vnd.oasis.opendocument.presentation)
2021-06-26 13:59 UTC, Stéphane Guillou (stragu)
Details
SVG exported with LO Impress 7.3 (486.83 KB, image/svg+xml)
2021-06-26 14:02 UTC, Stéphane Guillou (stragu)
Details
svg exported by LibreOffice 7.1.3.2 (2.58 MB, image/svg+xml)
2021-06-29 15:15 UTC, Franklin Weng
Details

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Description Stéphane Guillou (stragu) 2021-06-26 13:57:31 UTC
Description:
Exporting an Impress slide to SVG results in a file that looks blank to many applications, because of the <g visibility="hidden"> tags in the source.

Applications that show the objects:
- Firefox 89.0.1
- Gnome Web 3.28.6
- Chromium 91.0.4472.101
- Inkscape 1.1
- LibreOffice Impress 7.0, 7.2, 7.3
- other LibreOffice components insert the SVG as expected

However, other applications don't show the objects:
- gThumb 3.6.1
- thumbnails in Nautilus (Gnome Files) 3.26.4
- GIMP 2.10.24
- Sozi 20.05.09
- Draw.io 14.6.13

Draw does not have the same issue when exporting SVGs.

Steps to Reproduce:
1. Open Impress
2. Add various objects to slide (shapes, images, text boxes...)
3. File > Export...
4. Export to SVG
5. Open the file in another application

Alternatively, start at step 3 with attachment 173218 [details]

Actual Results:
Some applications don't show the objects (gThumb, Sozi, GIMP...)

Expected Results:
All applications that support SVGs should show all objects.


Reproducible: Always


User Profile Reset: No



Additional Info:
Editing the source of the SVG and replacing all occurrences of:

g visibility="hidden"

With:

g visibility="visible"

... results in a file that displays properly in all applications.

Tested on:

Version: 7.3.0.0.alpha0+ / LibreOffice Community
Build ID: f446a203fa2897bab8ae7686c948a8bf060675c6
CPU threads: 8; OS: Linux 4.15; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
TinderBox: Linux-rpm_deb-x86_64@86-TDF, Branch:master, Time: 2021-06-24_15:16:38
Calc: threaded

Version: 7.2.0.0.beta1 / LibreOffice Community
Build ID: c6974f7afec4cd5195617ae48c6ef9aacfe85ddd
CPU threads: 8; OS: Linux 4.15; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: threaded

Version: 7.0.6.2
Build ID: 144abb84a525d8e30c9dbbefa69cbbf2d8d4ae3b
CPU threads: 8; OS: Linux 4.15; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: threaded
Comment 1 Stéphane Guillou (stragu) 2021-06-26 13:59:11 UTC
Created attachment 173222 [details]
example slide to export from Impress to SVG

Another slide to export from Impress to SVG, with a variety of objects included. All objects are affected.
Comment 2 Stéphane Guillou (stragu) 2021-06-26 14:02:19 UTC
Created attachment 173223 [details]
SVG exported with LO Impress 7.3

Example exported SVG, with <g visibility="hidden"> objects.
Comment 3 Franklin Weng 2021-06-29 15:15:57 UTC
Created attachment 173272 [details]
svg exported by LibreOffice 7.1.3.2


The same problem, couldn't see anything in Sozi.

svg exported from:

Version: 7.1.3.2 / LibreOffice Community
Build ID: 47f78053abe362b9384784d31a6e56f8511eb1c1
CPU threads: 4; OS: Linux 5.10; UI render: default; VCL: kf5
Locale: zh-TW (zh_TW.UTF-8); UI: zh-TW
Calc: threaded

Also visibility is set as hidden
Comment 4 Franklin Weng 2021-06-29 15:53:13 UTC
Manually changing (with text editor) from visibility="hidden" to visibility="inherit" could make it shown in Sozi.
Comment 5 Stéphane Guillou (stragu) 2021-07-01 11:55:04 UTC
Marking as "NEW" as was confirmed by Franklin in Comment 3.
Comment 6 Franklin Weng 2021-07-04 08:50:15 UTC
By updating the CSS style of *all* objects, assign "visibility" to "visible" in Inkscape, objects can be shown in Sozi.

So please take a look the CSS style of exported objects.
Comment 7 Stéphane Guillou (stragu) 2021-07-06 01:59:51 UTC
Reproduced on Windows 10 as well: visibility of objects is set to "hidden".

Version: 7.0.6.2 (x64)
Build ID: 144abb84a525d8e30c9dbbefa69cbbf2d8d4ae3b
CPU threads: 4; OS: Windows 10.0 Build 19042; UI render: Skia/Vulkan; VCL: win
Locale: en-AU (en_AU); UI: en-US
Calc: threaded
Comment 8 Stéphane Guillou (stragu) 2021-07-08 10:53:26 UTC
Reproduced with older version too:

Version: 6.2.5.2
Build ID: 1ec314fa52f458adc18c4f025c545a4e8b22c159
CPU threads: 4; OS: Linux 5.4; UI render: default; VCL: gtk3; 
Locale: en-AU (en_AU.UTF-8); UI-Language: en-US
Calc: threaded
Comment 9 QA Administrators 2023-11-09 03:16:16 UTC Comment hidden (obsolete)
Comment 10 Stéphane Guillou (stragu) 2023-11-09 10:37:02 UTC
Repro in recent trunk build:

Version: 24.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: ff3fb42b48c70ba5788507a6177bf0a9f3b50fdb
CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: threaded

as well as in 6.0.0.3.

Regression as 5.0.0.5 would export with all objects visible (only a master slide number element has the hidden property). (And file would be about a tenth in size.)
Comment 11 raal 2023-12-23 14:16:35 UTC
This seems to have begun at the below commit in bibisect repository/OS bibisect-linux-64-5.2.
Adding Cc: to Marco Cecchetti ; Could you possibly take a look at this one?
Thanks
 ec0e5b057dc3cbbda20e94e608eb7005432d6b68 is the first bad commit
commit ec0e5b057dc3cbbda20e94e608eb7005432d6b68
Author: Jenkins Build User <tdf@pollux.tdf>
Date:   Thu Dec 7 10:57:55 2017 +0100

    source 154521777f8c551f10ffbe414891df9d2a529ae3

20459: svg export: no more an experimental feature | https://gerrit.libreoffice.org/c/core/+/20459
Comment 12 Aron Budea 2023-12-24 16:19:39 UTC Comment hidden (obsolete)
Comment 13 Aron Budea 2024-01-02 01:20:37 UTC
(In reply to Aron Budea from comment #12)
> @raal Thanks for bibisecting this, it might be worth to check further with
> experimental mode turned on.
I have verified that experimental mode makes no difference, the regressing commit is the same.
Comment 14 QA Administrators 2026-01-02 03:11:55 UTC
Dear Stéphane Guillou (stragu),

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.

There have been thousands of bug fixes and commits since anyone checked on this bug report. During that time, it's possible that the bug has been fixed, or the details of the problem have changed. We'd really appreciate your help in getting confirmation that the bug is still present.

If you have time, please do the following:

Test to see if the bug is still present with the latest version of LibreOffice from https://www.libreoffice.org/download/

If the bug is present, please leave a comment that includes the information from Help - About LibreOffice.
 
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Please DO NOT

Update the version field
Reply via email (please reply directly on the bug tracker)
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appropriate in this case)


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