Commit b67c5af5 authored by Committed by Matthias ClasenBrowse files
Add invariant that a child is unmapped if parent is unmapped
Requires fixes to GtkContainer and GtkWindow to unmap their children, rather than just withdrawing or hiding the container window. Requires fix to GtkHandleBox to chain up to GtkContainer unmap. Historically we avoided these unmaps for efficiency reasons, but these days it's a bigger problem that there's no way for child widgets to know that one of their ancestors has become unmapped.
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