Greg Pomerantz
110c92e3fa
The relative-line mapping resolved the anchor's base line from the anchor's CURRENT byte on every drag event. Once the anchor crossed a line, its own movement fed back into its target: a finger jittering near a line boundary added one more line per event and raced the anchor to the bottom of the file (reported: tiny vertical movements jump the anchor off-screen). Capture the anchor's visual line once at the grab (SelDragPressLine) and compute the target from that fixed base. A jitter test (TestSelDrag_EndHandle_JitterNearLineBoundary_Stable) pins the runaway: mutation-verified against the per-event re-resolution. |
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| browser | ||
| editor | ||
| io/pool | ||
| perf | ||
| test/e2e | ||
| ui | ||