https://bugs.kde.org/show_bug.cgi?id=499148
Bug ID: 499148
Summary: Tooltips fail with error: Cannot attach popup of
unknown type
Classification: Frameworks and Libraries
Product: layer-shell-qt
Version: unspecified
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: aleix...@kde.org
Reporter: daw...@gmx.com
Target Milestone: ---
SUMMARY
When creating a Qt application that uses the layer-shell-qt library, "tooltips"
don't work; instead the library outputs an error message to the console:
"layershellqt: Cannot attach popup of unknown type".
Building and running the application through the debugger, the problem lies in
the file qwaylandlayersurface.cpp, function void
QWaylandLayerSurface::attachPopup(QtWaylandClient::QWaylandShellSurface
*popup).
I believe this bug could be related to [Bub
480240](https://bugs.kde.org/show_bug.cgi?id=480240)
STEPS TO REPRODUCE
1. Compile and run this small example
``` cpp
#include <QApplication>
#include <QPushButton>
#include <LayerShellQt/Window>
#include <LayerShellQt/Shell>
int main (int argc, char *argv[])
{
LayerShellQt::Shell::useLayerShell();
QApplication app(argc, argv);
QPushButton button("Button");
button.setToolTip("Tooltip");
button.show();
LayerShellQt::Window *layer_shell =
LayerShellQt::Window::get(button.windowHandle());
layer_shell->setLayer(LayerShellQt::Window::LayerTop);
layer_shell->setAnchors(LayerShellQt::Window::AnchorBottom);
return app.exec();
}
```
OBSERVED RESULT
The layer shell works and shows the button. If you hover over the button, its
tooltip doesn't show, and instead you get an error on the console:
"layershellqt: Cannot attach popup of unknown type"
EXPECTED RESULT
The tooltip should show as it does on a normal window not using layer-shell-qt.
SOFTWARE/OS VERSIONS
Arch Linux last updated on 2025-01-25.
layer-shell-qt: 6.2.5
Qt Version: 6.8.1
Compiler: gcc/g++ 14.2.1 and clang 19.1.7
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