Comment 32 for bug 619403

(In reply to Peter Hutterer from comment #20)
> (In reply to main.haarp from comment #17)
> If the document is long enough
> that scrolling acceleration is needed, the application (or toolkit) should
> honor that and provide the appropriate methods - that may include
> acceleration.
> libinput sits too low to have the semantic awareness here. For example,
> scrolling events during alt-tab switch between applications but libinput
> doesn't know that, it merely forwards the hardware events.

You have a point there, libinput will always lack the semantic awareness and thus not provide an ideal solution.

But I'll have to disagree. In an ideal world, you can offload acceleration to the app/toolkit. But since we have tons of legacy applications or developers unaware or unwilling to implement acceleration, they'll never receive the benefits. And even if they implement it, you get lots of duplicated efforts and functionality between apps.

If acceleration depends on the toolkit/application, I fear it'll remain a toy for select applications on modern distros only.