Each if/else that only showed one object in one branch and hid it in the other is now ClassicAPI's SetShown, which shows on any truthy value. 21 sites across 10 modules.
pfUI.events was a bare CallbackRegistry for pfUI's custom events. Build it
from ClassicAPI's EventRegistry instead, so the same object also takes game
events through RegisterFrameEventAndCallback, sharing one frame for all of
them.
Move the frames that existed only to listen for a few events onto it:
libspell, focus, pixelperfect, innervatecall, loothistory, unusable,
equipmentmanager (bank + window refresh), the actionbar grid, updatenotify,
turtle-wow's steady shot, nampower's spell queue, superwow's group tracking
and unitxp's notifications, plus newitem and mapreveal, which used the
global EventRegistry. Handlers take their payload as arguments instead of
the event/arg globals, and the per-frame PLAYER_LOGOUT teardown goes away,
since the registry unregisters its frame on logout.
pfUIScrollBoxListTemplate (api/ui-widgets.xml) is a WowScrollBoxList with
pfUIScrollBarTemplate beside it, 5px inside the frame, so a list's
backdrop goes on the frame itself. The addon list moves onto it and drops
the sibling backdrop frame.
Loot history builds a flat list of item rows and, under an expanded item,
player rows; the view sizes and indents them. The item frame array, the
player pool, the hand-placed rows and the scroll child re-attach are gone,
and the scroll position holds across roll updates.
The icon picker's FauxScrollFrame and 80 fixed buttons become a grid view
over the provider's icon indices. Picking an icon reinitializes the shown
buttons instead of redrawing the grid, and closing the popup drops the
grid's entries along with the provider.
Both modules had already grown a pool by hand. loothistory kept usedPlayers /
freePlayers tables with a recycle loop and a table.remove acquire; mapreveal
kept pfOverlays keyed by index, a pfOverlayMax high-water mark, and a
hide-the-tail loop. Replace both with ClassicAPI's Pools.lua backport, which
is what modules/tooltip.lua already uses for its buff icons.
The map explore icons change shape rather than just plumbing. Everything
constant -- size, scripts, mouse, frame level, the magnifying glass texture --
moves into the pool's creator instead of being re-set on every overlay on
every map update, and the acquire moves inside the visibility test. The old
loop built and configured an icon for every overlay in the zone and then hid
most of them again; with "mapexploration" off it built the whole set and hid
all of them. Now nothing is acquired for an icon that will not be shown.
The tile textures lose their pfRevealN names, since pools create anonymous
regions. They were already unique, so nothing was being clobbered -- this
only costs their labels in /fstack.
The RegisterSlashCommand helper in api/api.lua was effectively unused
(only macrotweak called it); every other command hand-rolled the
SLASH_*/SlashCmdList pair. Convert the existing manual registrations to
the helper with force=true, preserving the current always-bind behavior
while centralizing the pattern behind one code path (and its _G. and
conflict-check handling).
Left as-is: pfUI.lua's /rl, /pfui, /gm (registered before api.lua
defines the helper) and the vendored libs' debug commands.
A pfUI-native group-loot roll history window built on ClassicAPI's
C_LootHistory backport, adapted from the anniversary Blizzard reference.
- Movable/scrollable window (ESC-closable, Clear button) listing rolled
items; each row expands to per-player rolls.
- Item icon/name/quality rendered via the !!!ClassicAPI Item mixin
(Item:CreateFromItemLink + ContinueOnItemLoad), so uncached items load
asynchronously and repaint their row.
- Winner shown on the collapsed row (name/roll/roll-type) and marked in the
expanded list with a checkmark left of the name (matches the reference).
- Expansion state keys on the stable rollID; events (FULL_UPDATE /
ROLL_CHANGED / ROLL_COMPLETE) drive a rebuild while shown, and re-attach
the scroll child so a growing list scrolls without a /reload.
- Toggle via /loothistory or /lh; optional auto-show on new rolls behind
loothistory.autoshow (default off).