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Drive auras from UNIT_AURA_DELTA

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UNIT_AURA says nothing about what changed and stays silent when a buff
is refreshed or its duration packet lands, so a recast HoT kept its old
timer until something else rebuilt the row. UNIT_AURA_DELTA reports
added, updated and removed aura instances, refreshes included.

Unit frames register it on their own token. An add, a removal or a full
update rebuilds the auras as before; an update-only delta re-reads the
slot behind each shown icon for its stacks and timer and redraws the
buff indicators, without a relayout or a dispel scan. Frames that
follow a GUID (the target-of-X chain) stay on UNIT_AURA, since the
delta only fires for tokens. A finished aura layout announces itself
as "unitframe:auras".

buffwatch drops its 0.4s rescan: bars rebuild on the delta, on login
and on a target change, and a timer wakes the frame when the next aura
crosses the bar threshold. Bars re-anchor when the player or target
frame lays out its aura rows, and a whitelist or blacklist click
applies at once.

Nameplates, the loss of control alert and the equipment manager's
mount/stealth/dining check listen to the delta as well.
This commit is contained in:
Brues
2026-10-31 11:32:47 -05:00
parent 8b5a27f9be
commit b6f58b0e04
5 changed files with 98 additions and 17 deletions
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modules/nameplates.lua
+3 -3
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@@ -501,7 +501,7 @@ nameplates:RegisterEvent("NAME_PLATE_CREATED")
nameplates:RegisterEvent("NAME_PLATE_UNIT_ADDED")
nameplates:RegisterEvent("NAME_PLATE_UNIT_REMOVED")
nameplates:RegisterEvent("UPDATE_MOUSEOVER_UNIT")
-- UNIT_AURA / UNIT_FLAGS / UNIT_SPELLCAST_* are registered per plate, on the
-- UNIT_AURA_DELTA / UNIT_FLAGS / UNIT_SPELLCAST_* are registered per plate, on the
-- plate's own frame, against its own token -- see OnCreate and
-- NAME_PLATE_UNIT_ADDED.
nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
@@ -606,7 +606,7 @@ nameplates:RegisterUnitEvent("UNIT_SPELLCAST_NOT_INTERRUPTIBLE", "target", "focu
-- Point this plate's own subscriptions at the token it just took. On a
-- recycled frame these replace the previous unit rather than stacking:
-- RegisterUnitEvent on an already-filtered registration swaps the units.
plate.nameplate:RegisterUnitEvent("UNIT_AURA", arg1)
plate.nameplate:RegisterUnitEvent("UNIT_AURA_DELTA", arg1)
plate.nameplate:RegisterUnitEvent("UNIT_FLAGS", arg1)
plate.nameplate:RegisterUnitEvent("UNIT_TARGET", arg1)
plate.nameplate:RegisterUnitEvent("UNIT_SPELLCAST_START", arg1)
@@ -760,7 +760,7 @@ nameplates:RegisterUnitEvent("UNIT_SPELLCAST_NOT_INTERRUPTIBLE", "target", "focu
-- new token; _REMOVED drops it, which matters because freed slots are
-- reused and a stale token would feed this frame another unit's events.
nameplate:SetScript("OnEvent", function()
if event == "UNIT_AURA" then
if event == "UNIT_AURA_DELTA" then
-- a fresh C_UnitAuras read next tick rather than waiting out the 0.5s
-- throttle -- covers expiry, dispels, refreshes and stack changes
this.auraUpdate = true