tree - expose node offset to make styling based on it possible

[dlvhdr]

Is your feature request related to a problem? Please describe.

I would like to limit the width of a node's text so it's always one line.

Also, I'm not sure if it's possible, but I would like to have the ability to add ellipsis to items with overflowing text - could be a separate issue.

Describe the solution you'd like

Expose an offset attribute so I know what level a node is in (its depth).
I will then use it like so:

tree.Root().ItemStyleFunc(func(children tree.Children, i int) lipgloss.Style {
  node := children.At(i)
  return lipgloss.NewStyle().MaxWidth(SidebarWidth - node.Offset())
})

Describe alternatives you've considered

• Using MaxHeight(1) inside ItemStyleFunc is not enough since the text overflows to the next line.
• Using MaxWidth() inside ItemStyleFunc works but I can't know what width to put it since I don't know the offset and therefor how much room I have.

Additional context
Using MaxWidth of 10 gives me this which only "works" for some of the nodes.

[caarlos0]

hey Dolev!

I think the Offset() method makes sense.

Do you wanna work on a PR, or should I do it?

[dlvhdr]

I was actually thinking of taking a stab at writing a bubbles for the tree, so I'm thinking maybe I can write a draft to figure out if anything else needs to be exposed before implementing Offset, wdyt?

[caarlos0]

Awesome! Sounds like a plan 🙏🏻