fix(cdk/listbox): avoid resetting scroll position when using mouse #30903
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Fixes a bug in the select component that makes it shrink on scroll and not grow back when it get's back into view Fixes angular#30901
The CDK listbox has some logic that forwards focus to the first item when the host is focused. The problem is that every time the user clicks on the scrollbar, they blur the current item and focus the listbox which then forwards focus back to the first item which in turn causes the scroll position to jump to the top. These changes add some logic to not forward focus when focus comes from a mouse interaction. Fixes angular#30900
SergheiGurgurov
requested review from
mmalerba and
wagnermaciel
and removed request for
a team
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The CDK listbox has some logic that forwards focus to the first item when the host is focused. The problem is that every time the user clicks on the scrollbar, they blur the current item and focus the listbox which then forwards focus back to the first item which in turn causes the scroll position to jump to the top. These changes add some logic to not forward focus when focus comes from a mouse interaction.
Fixes #30900