On 19/11/15 13:17, Thierry Goubier wrote:
Maybe. I haven't checked if the rule above holds for multi-selection.
Looking in some more detail at it, the behaviour of Thunderbird seems incorrect. Collapse and expand should restore the selection. I might want to add en element to the selection that is much easier reached by collapsing a subtree. Thunderbird loses the selection, and doesn't indicate how much of the subtree is selected.
Maybe it could be left to the application using the widget, but, even at that level, writing it properly is hard (and it would be good that the toolkit provides for proper behavior to make the life of the application designer easier).
The best way to ensure consistency is to make it easy to do the right thing, yes.
Stephan
