sammygill
WebCore contributor
Summary
Works almost entirely in WebCore layout, concentrated on the new grid formatting context (GFC) and its integration path with the legacy RenderGrid — track sizing, implicit track generation, negative line resolution, and self-alignment. The pattern is new-engine bring-up rather than security work: no security or hardening commits, but a steady stream of bail-out guards for cases GFC can't yet handle (percentage rows with indefinite block size, flipped-block writing modes, relatively positioned items with percentage offsets) alongside at least one crash fix in inflexible track marking. Systematic-variant candidate: the bail-out list is effectively a map of untested state space, and negative line placement against implicit/explicit track counts is the kind of index arithmetic where an off-by-one becomes an OOB — worth diffing the GFC path against RenderGrid for placement cases that reach the new engine without a guard.
Components
Security Fix History
- No security fixes recorded
Hardening Commits
- No hardening commits recorded
Recent Commits
- 2026-08-06 [Grid] margin-trim does not apply to grids.
- 2026-08-03 [GFC] Generate leading implicit tracks for negative line placements
- 2026-08-03 REGRESSION(316049@main): iPhone Mirroring Mail erroneously marks autocorrected text
- 2026-07-31 [GFC][Integration] Allow every non-baseline self-alignment value
- 2026-07-30 [GFC][Integration] RenderGrid needs grid items' areas after layout.
- 2026-07-30 [GFC] Make sure there is at least one row when ImplicitGrid is created.
- 2026-07-30 [GFC] Items with content based size do not have a specified size suggestion
- 2026-07-29 [GFC] Resolve negative grid lines against the explicit grid track count
- 2026-07-29 [GFC] Bail out of GFC for grids with percentage rows and an indefinite block size
- 2026-07-29 [GFC][Integration] Bail out of GFC for relatively positioned grid items with a percentage offset
- 2026-07-28 REGRESSION(314501@main): On flights.google.com, can't use backspace to delete airport from box
- 2026-07-28 [GFC] Apply a grid item's negative line offset when constructing UnplacedGridItem
- 2026-07-28 [GFC] Use UnplacedGridItem::GridPosition when determining item position type.
- 2026-07-28 [GFC] Automatic minimum size should not resolve percentages against unknown available space during track sizing
- 2026-07-27 [GFC][Attempt 2] Relax alignment checks a bit.