[FeatureRequest] Allow markdown control to set Vertical/Horizontal scroll enabled/disabled that propagate to internal scroll

[En3Tho]

In a typical chat app there is a "global" scroll that handles scrolling of VStack with chat messages. MarkdownControl has it's own internal scroll that sometimes pops up and sometimes does not (some really long markdowns are rendered without it and some shorter ones are rendered with it). It would be nice to being able to disabled it and just let control stretch vertically as much as it needs to.

[xoofx]

In a typical chat app there is a "global" scroll that handles scrolling of VStack with chat messages. MarkdownControl has it's own internal scroll that sometimes pops up and sometimes does not (some really long markdowns are rendered without it and some shorter ones are rendered with it). It would be nice to being able to disabled it and just let control stretch vertically as much as it needs to.

Do you have a repro? There are for examples scrollbars for code sections, but I forgot if it has scrollviewer for its own content. I'm using it in CodeAlta and it works fine there.

Also note that ScrollViewer won't work well with large VStack chat messages, that's why I have developed a DocumentFlow control which is typically design for this (auto-scrolling, rendering optimized for very long chat lines...etc.). Similarly it is used in CodeAlta and works well.

[En3Tho]

@xoofx Sorry for the long delay. For now I can only provide screenshots but I will try to make a repro soon.

Context: VStack of Bordered components that include MarkdownControl inside them

Screenshot1 (scroll bar comes from vstack, no scroll bar on markdown shown):

Screenshot2 (splitter moved to the right leaving a bit more space to VStack, something is recalculated and scroll appears on markdown component too):

Screenshot3 (splitter moved to the right again until markdown scroll bar disappears):

Screenshot4 (splitter moved to the right again and markdown scroll bar appears again):

I think it has to do with size calculation and Markdown control thinks like it doesn't vertically fit for some reason?