Add AppIndicator/SNI support for wxTaskBarIcon on GTK/Wayland (PR #26715)

ykne

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Jul 21, 2026, 9:38:42 AM (yesterday) Jul 21

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Summary

Adds AppIndicator/StatusNotifierItem support to wxTaskBarIcon on GTK so tray icons work under Wayland, where the legacy X11 tray protocol isn't available.
New --with-appindicator configure option / wxUSE_APPINDICATOR CMake option; detects ayatana-appindicator3-0.1 first, falling back to appindicator3-0.1.
New wxTaskBarIcon::SetSNIIconName()/SetSNIIconThemePath() (GTK only) for setting a named icon via the SNI backend.
The persistent menu the AppIndicator protocol requires is obtained via the existing GetPopupMenu()/CreatePopupMenu() virtuals rather than a new method, since GetPopupMenu() already has the right "kept alive, not destroyed" semantics.

Test plan

configure regenerated with autoconf 2.69 (matching the version that produced the checked-in script), verified byte-reproducible.
Full build (make -j4) succeeds with zero warnings/errors against real libayatana-appindicator3-devel headers (Fedora), producing libwx_gtk3u_core-3.3.so linked against -layatana-appindicator3.
Manually verified a tray icon appears under a Wayland session (e.g. GNOME) and existing X11 tray behavior is unaffected.

You can view, comment on, or merge this pull request online at:

https://github.com/wxWidgets/wxWidgets/pull/26715

Commit Summary

152e57b Add AppIndicator/SNI support for system tray on Wayland

File Changes

(11 files)

M build/cmake/init.cmake (12)
M build/cmake/lib/core/CMakeLists.txt (4)
A build/cmake/modules/FindAPPINDICATOR.cmake (33)
M build/cmake/options.cmake (1)
M build/cmake/setup.h.in (8)
M configure (307)
M configure.ac (27)
M include/wx/gtk/taskbar.h (2)
M interface/wx/taskbar.h (38)
M setup.h.in (8)
M src/gtk/taskbar.cpp (236)

Patch Links:

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ykne

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Jul 21, 2026, 9:47:44 AM (yesterday) Jul 21

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@ykne pushed 1 commit.

71ff6c9 Add AppIndicator/SNI support for system tray on Wayland

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ykne

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Jul 21, 2026, 9:25:50 PM (22 hours ago) Jul 21

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ykne left a comment (wxWidgets/wxWidgets#26715)

FYI: 4 checks are currently failing/cancelled, but they look unrelated to this change:

wxMac Universal C++14: the build itself succeeds (26,734/26,735 assertions pass); the one failure is Window::Refresh in controls/windowtest.cpp:611, a repaint-timing assertion unrelated to taskbar/AppIndicator code.
Ubuntu 18.04 wxQt, MSW/MSVC wxQt 5.15, MSW/MSVC wxQt 6.10: all show cancelled, not failure — each ran for ~6 hours before hitting the job timeout, hanging specifically at the GUI/Xvfb testing step after configure/build/non-GUI tests all passed. This PR doesn't touch any Qt-related files.

I don't have permission to re-run jobs on this repo — could a maintainer re-run these when convenient?

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