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Implement History mouse wheel navigation

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gamer147
2026-07-19 21:38:34 -04:00
parent 81155c5e1c
commit 7c110d762b
10 changed files with 169 additions and 12 deletions
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docs/phase-a-slice-plan.md
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@@ -1874,3 +1874,28 @@ implementation slice from their actual responsibilities rather than treating the
Validation: all 203 engine tests pass, opcode and EngineCtx tests/lints are clean, vm0 RECOVER passes, the
Godot build has zero warnings, and threaded `SELFTEST OK`.
### ADV History mouse-wheel navigation implemented (2026-07-19)
The five-gap investigation separated independent responsibilities instead of grouping them by proximity.
Native `age_main_window_proc@0x486320` handles `WM_MOUSEWHEEL` by sign-extending its high-word delta and
accumulating it at `EngineCtx+0x1c34`; op `0x10d` returns that signed total and clears it. HISTORY first
uses the opcode to discard stale motion, then polls it from its timed mouse callback and feeds the sign into
the already implemented smooth-scroll route.
Godot now translates wheel-up/down into signed 120-unit deltas, and the VM atomically accumulates and
consumes them. This extends the existing generic raw-input callback seam and introduces no script-specific
offsets, seeded state, or persistence choice. A focused regression proves accumulation/read-clear behavior;
a real SC0000-to-HISTORY regression opens after eight messages and proves wheel-up changes the retained row
selection without releasing the enclosing ADV wait.
The canonical opcode and EngineCtx sources are regenerated, and `/v2` now names/comments the recovered main
window procedure and the specific `0x10d` handler. HISTORY is 74/78 distinct opcodes and 849/854 instructions
handled or safe-noop. Remaining: `0x8b` twice, paired sprite-animation service ops `0x1ce`/`0x20a`, and the
deferred Read-message Skip setting getter `0x1cb`.
**Next:** reverse the common text-style block around `0x8b`; it is the smallest remaining non-persistence
gap. Keep `0x1cb` deferred, and treat `0x1ce`/`0x20a` together as their own sprite-animation slice.
Validation: all 205 engine tests pass, opcode and EngineCtx tests/lints are clean, vm0 RECOVER passes, the
Godot build has zero warnings, and threaded `SELFTEST OK`.