A comment placed on a 30m bar slid to the far left the moment the chart switched
to 15m. timeToCoordinate answers only for times that are data points on the
current series, so a 30m bucket start returns null on another timeframe — and
the render was reading null as "off the left edge", which parked every such
comment against the left of the pane.
Anchors resolve to the bar that contains them instead, found by binary search
over the current bars, which is timeframe-independent: an 09:30 note sits on the
09:30 bar at 15m and on the 09:00 bar at 1h. Times genuinely before the first
bar or after the last are reported separately, so real off-screen comments still
park on the edge they left rather than being confused with unresolved ones.
setBars re-renders comments too, since a timeframe switch replaces the bar grid
underneath every pinned one.
Verified in a browser across 30m to 15m to 1h and back: the anchor stays 08:30
throughout, resolving to the 08:30 bar at 15m and the 08:00 bar at 1h, never
edge-parked, and returning to its original coordinate. Edge-parking still fires
where it should — scrolled 400 bars away a comment parks right, and comes back
when the view returns to live.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Chris Amow
9b6cff853b