Adds an experimentalSnapScrollToPinnedItem path that resnaps scroll to
the first pinToEdgeWithInset item after inset/visible-size updates and
on empty itemNodes. Promotes ListViewItem to AnyObject and adds a
pinToEdgeWithInset protocol requirement with a default of false.
Also runs chat history transactions synchronously when updating scroll
around correlated messages, and tightens beganInteractiveDragging weak-
self handling.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Introduces a pin-to-edge mode for list items: items whose
pinToEdgeWithInset flag is true are pinned to the bottom edge of the
visible area, with the list geometry (pin inset, scrollToItem,
inset-transition offsetFix, visible-size updates) adjusted to handle
this new mode consistently.
Collected from spec, plan, and 12 iterative fixes during
implementation that refined pin-inset helpers, scroll landings, and
transition math. Pin-inset computation uses frame.size.height;
scrollToItem lands on the item's pinned position via apparentBounds.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Replace characterToGlyphMapping with characterRects ([CGRect]?) on InteractiveTextNodeLine
- Add computeCharacterRects flag to InteractiveTextNodeLayoutArguments
- Compute actual glyph bounding boxes via CTFontGetBoundingRectsForGlyphs during layout
- Implement computeRevealedLines, layoutForCharacterCount, sizeForCharacterCount
- Implement updateRevealCharacterCount to distribute character budget across content item layers
- Update snippet layers to animate per-character rects with SnippetLayer tracking character index
- Mask limit driven by lowest animating snippet index for correct reveal ordering
- Fix listViewAnimationCurveEaseIn to match iOS default ease-in curve (0.42, 0.0, 1.0, 1.0)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Ilya Laktyushin