Bug 157080

Summary: Assertion in Tools > Options > Font
Product: LibreOffice Reporter: Heiko Tietze <heiko.tietze>
Component: LibreOfficeAssignee: Not Assigned <libreoffice-bugs>
Status: RESOLVED WORKSFORME    
Severity: normal CC: aron.budea, buzea.bogdan, ilmari.lauhakangas, m.weghorn, rafael.palma.lima, serval2412
Priority: medium Keywords: accessibility, haveBacktrace
Version: 24.2.0.0 alpha0+   
Hardware: All   
OS: All   
See Also: https://bugs.documentfoundation.org/show_bug.cgi?id=157160
Whiteboard:
Crash report or crash signature: Regression By:
Bug Depends on:    
Bug Blocks: 105537    
Attachments: gdb bt

Description Heiko Tietze 2023-09-04 08:41:20 UTC 
Switching to fonts crashes the application.

Version: 24.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: cc7d6211bc01e5ec84dbad542605d2e93dea925c
CPU threads: 8; OS: Linux 6.4; UI render: default; VCL: kf5 (cairo+xcb)
Locale: en-US (en_US.UTF-8); UI: en-US
Calc: threaded 

warn:vcl.qt:948647:948647:vcl/qt5/QtAccessibleEventListener.cxx:228: Not forwarding AccessibleEventId::CHILD event for removed child since it may cause crashes.
soffice.bin: /home/ht/Sources/libreoffice/vcl/source/window/layout.cxx:1928: virtual const vcl::Window *VclScrolledWindow::get_child() const: Assertion `GetChildCount() == 4 || pWindowImpl->mbInDispose' failed.
soffice.bin: /home/ht/Sources/libreoffice/vcl/source/window/layout.cxx:1928: virtual const vcl::Window *VclScrolledWindow::get_child() const: Assertion `GetChildCount() == 4 || pWindowImpl->mbInDispose' failed.
Comment 1 Julien Nabet 2023-09-04 12:34:20 UTC 
Created attachment 189337 [details]
gdb bt

On pc Debian x86-64 with master sources updated today, I could reproduce this with kf5 rendering (not with gtk3 or gen renderings)
Comment 2 Julien Nabet 2023-09-04 15:22:55 UTC 
Michael: thought you might be interested in this one since it concerns accessibility + kf5 rendering.
Comment 3 Michael Weghorn 2023-09-04 17:30:03 UTC 
Same on Windows when NVDA is running (but not without):

> Assertion failed: GetChildCount() == 4 || pWindowImpl->mbInDispose, file C:/tools/cygwin/home/user/development/git/libreoffice-WORKTREE/vcl/source/window/layout.cxx, line 1928
> Assertion failed: GetChildCount() == 4 || pWindowImpl->mbInDispose, file C:/tools/cygwin/home/user/development/git/libreoffice-WORKTREE/vcl/source/window/layout.cxx, line 1928
> Assertion failed: GetChildCount() == 2 || pWindowImpl->mbInDispose, file C:/tools/cygwin/home/user/development/git/libreoffice-WORKTREE/vcl/source/window/layout.cxx, line 1558

Interestingly, it works fine when the "Tools" -> "Options" dialog already initially opens on the "Fonts" page (e.g. because that has been saved as the last open page when having it opened before without NVDA running).

Version: 24.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 21af3e5b5df02747691f08c453407d0abfc91242
CPU threads: 8; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: en-US (en_DE); UI: en-US
Calc: threaded
Comment 4 Buovjaga 2023-09-12 13:20:08 UTC 
*** Bug 157183 has been marked as a duplicate of this bug. ***
Comment 5 Julien Nabet 2024-05-18 12:36:47 UTC 
On pc Debian x86-64 with master sources updated today (+ kf5 rendering), I don't reproduce this anymore.

Heiko: could you give a new try?
Comment 6 Heiko Tietze 2024-05-21 06:18:07 UTC 
No issue anymore with kf5/6, gtk3, and gen.

Version: 24.8.0.0.alpha1+ (X86_64) / LibreOffice Community
Build ID: b7aa20fa1a6cf48a6dcb018e25edce30af4b7bef
CPU threads: 32; OS: Linux 6.9; UI render: default; VCL: kf5 (cairo+xcb)
Locale: de-DE (en_US.UTF-8); UI: en-US
Calc: threaded