Introduces the horizontal drag concept (to be reused widely) on the
discover album Carousel. Replaces the manual page-slide (a clipped
Rectangle translated by -page*step) with a horizontal Flickable:
the row now drags by touch/pointer with kinetic momentum, and card
taps still register because Flickable distinguishes a flick from a
tap — unlike nested TouchAreas, where the card's own TouchArea would
swallow the drag.
- viewport-height is pinned to the row height so the Flickable
only scrolls horizontally and never fights the home page's
vertical Flickable.
- prev/next buttons nudge viewport-x by one page width (clamped to
[-max-scroll, 0]); enabled state + the edge fades derive from
viewport-x.
- No animate on viewport-x — that would rubber-band the per-frame
drag updates; button jumps are instant in exchange for smooth
dragging.
cc
vicrodh
20b13dbbf1