The Listen list and the sidebar queue now reach their views through
QbzKeyedModel. In the Listen list a removed track fades out while the
rows below slide up, "play next" slides the queue open, a history row
trimmed above the window leaves the rows on screen where they are, and a
committed drag lands the row where it was dropped while its neighbours
slide (the chevrons keep the animated swap). Identity is the track
(source + id, repeats by occurrence); phase, section and phaseIndex are
data, so a track ending updates rows in place and moves nothing. The
follow-playing position and the cover window now run after the model
holds the new rows. A search is a different list and is replaced at once.
The sidebar's Up Next and Recently played are Repeaters in Columns, which
have no remove transition: a leaving row disappears and the rows below
slide up, a joining row fades in, and a page or search change is laid out
synchronously without animation. Drop slots count the Repeater's own
items.
tst_keyed_model gains the Repeater-in-a-Column case (silent first page and
page change, sliding rows that keep their items, fading insert).
cc
vicrodh
408a7af0c9