[GTK4] Fix CTabFolder chevron click GTK-Critical #2940
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This is kind of prereq for #2895 as it fails for chevron button positioning. |
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Error is like: ``` (SWT:339274): Gtk-CRITICAL **: 17:08:42.533: gtk_widget_compute_point: assertion 'GTK_IS_WIDGET (widget)' failed ``` The problem comes from Control.getSurfaceOrigin method relying on fixedHandle (even when there is not one) use eventHandle() in this case. Tested with Snippet165.
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Clicking on CTabItem close button causes: ``` (SWT:2017253): Gtk-CRITICAL **: 21:06:02.496: gtk_widget_compute_point: assertion 'GTK_IS_WIDGET (widget)' failed ``` In this case fixedHandle is 0 and eventHandle has to be used like in eclipse-platform#2940
akurtakov
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Clicking on CTabItem close button causes: ``` (SWT:2017253): Gtk-CRITICAL **: 21:06:02.496: gtk_widget_compute_point: assertion 'GTK_IS_WIDGET (widget)' failed ``` In this case fixedHandle is 0 and eventHandle has to be used like in eclipse-platform#2940
akurtakov
added a commit
that referenced
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Jan 27, 2026
Clicking on CTabItem close button causes: ``` (SWT:2017253): Gtk-CRITICAL **: 21:06:02.496: gtk_widget_compute_point: assertion 'GTK_IS_WIDGET (widget)' failed ``` In this case fixedHandle is 0 and eventHandle has to be used like in #2940
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Error is like:
The problem comes from Control.getSurfaceOrigin method relying on fixedHandle to translate coordinated but not every widget has such, use eventHandle() instead.
Tested with Snippet165.