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Benjamin Otte authored
GTK used to not emit GtkWidget::style-updated on widgets that weren't realized. This sped up construction of complex widgetry in the early days of GTK3 where we instantly invalidated on every change. We don't do that anymore, so in theory (and in my limited testing with widget-factory) this shouldn't be a prolem anymore. What is a problem though is that postponing style-updated leads to 2 problems: (1) Unrealized widgets will not emit style-updated which may cause them to not properly update their state and return wrong values from get_preferred_width/height() etc (2) Emitting style-updated during realize can happen too late. When a widget is not made child-visible by its parent (common examples: notebook, paned) it will also not be realized when the parent is initially shown. However, when they get realized later (after a resize of the parent), they will emit style-updated (and potentially queue a resize) during size-allocate. https://bugzilla.gnome.org/show_bug.cgi?id=765700
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