Fix: TabBar/TabContainer can't start with all tabs deselected #108255
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…ble. Fixes godotengine#108223 Code review adjustments. godotengine#108255 (review)
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TabBarsandTabContainerswere unable to start with no tabs selected, and couldn't properly retain their current tab value of "-1", also across editor restarts.Fix for Issue:
#108223
Cause
As the tabs were added to a TabBar (or children to a TabContainer) as the scene was set up, a bug in TabBar would always select tab index 0, even if deselection was enabled.
Repro (also in linked issue):
Before fix:
Fixed via:
A missing check for
deselect_enabledwas added inTabBar.cppon the code path when a first tab is added to an empty bar.After fix:
Tests:
Verified on Windows only via manual testing and
./bin/godot.windows.editor.x86_64.console.exe --test --test-case="*[TabBar]*"