tomo/tomo-old
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List has even more keynav support

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This commit is contained in:
Sasha Koshka 2023-04-20 15:54:11 -04:00
parent 399dda75bd
commit e5619ebf07
1 changed files with 18 additions and 2 deletions
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20
elements/list.go
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@ -140,6 +140,7 @@ func (element *List) HandleChildMouseDown (
element.selectNone()
element.selected = index
element.entity.SelectChild(index, true)
element.scrollToSelected()
}
}
@ -169,6 +170,7 @@ func (element *List) HandleKeyDown (key input.Key, modifiers input.Modifiers) {
element.selectNone()
element.selected = index
element.entity.SelectChild(index, true)
element.scrollToSelected()
}
}
@ -254,8 +256,22 @@ func (element *List) selectNone () {
}
}
func (element *List) setSelected (child tomo.Element) {
func (element *List) scrollToSelected () {
if element.selected < 0 { return }
target := element.entity.Child(element.selected).Entity().Bounds()
padding := element.theme.Padding(tomo.PatternBackground)
bounds := padding.Apply(element.entity.Bounds())
if target.Min.Y < bounds.Min.Y {
// TODO
element.scroll.Y -= bounds.Min.Y - target.Min.Y
element.entity.Invalidate()
element.entity.InvalidateLayout()
} else if target.Max.Y > bounds.Max.Y {
// TODO
element.scroll.Y += target.Max.Y - bounds.Max.Y
element.entity.Invalidate()
element.entity.InvalidateLayout()
}
}
func (element *List) state () tomo.State {