AvaloniaEdit works incorrectly with every value of AllowScrollBelowDocument

[Takoooooo]

How it works in Avalonia with the default value(true).
http://g.recordit.co/WMkRcE7Fxf.gif

How it works in WPF with value = true.
http://g.recordit.co/6h5W3Ea404.gif

How it works in Avalonia with value = false.
http://g.recordit.co/9KJGzvPYy9.gif

Fixed by #139 . Fixed behaviour https://recordit.co/8q2rA25T9I

How it works in WPF with value = false.
http://g.recordit.co/3SBqf65cD5.gif

[Takoooooo]

Ok I somewhy can't repro anymore the behaviour in WPF with value = true from above. Current behaviour
https://recordit.co/DdFcAp3QS2 which matches well with our behaviour in Avalonia

[Takoooooo]

Ok I somewhy can't repro anymore the behaviour in WPF with value = true from above. Current behaviour
https://recordit.co/DdFcAp3QS2 which matches well with our behaviour in Avalonia

It's reproducible only when you scroll with your mouse, not scrollbar.I'm not sure we need to port this also. That behaviour is bad IMO

[Takoooooo]

Ok I somewhy can't repro anymore the behaviour in WPF with value = true from above. Current behaviour
https://recordit.co/DdFcAp3QS2 which matches well with our behaviour in Avalonia

It's reproducible only when you scroll with your mouse, not scrollbar.I'm not sure we need to port this also. That behaviour is bad IMO

So current plan is to port the behaviour from WPF and additionally to make it consistent between scrollbar and mouse scrolling

[danipen]

@Takoooooo, agree.

Note that other editors (VSCode, Sublime), behaves in that way. They allow scrolling below document by default, and they behave in this way:

• When using Mouse/Scrollbar, the editor allows to display extra space, so the last document line in displayed the first viewport position.
• When using the arrow keys (or Ctrl+END), the last line is placed in the last viewport line (no extra space is displayed in this case).

Demo: https://www.loom.com/share/aa99e5381fe34efbb2d22d4caa673c74