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RelationshipsQuestAndItemBrowser.lua

@@ -2484,23 +2484,100 @@ local function RQL_ProcessChatFrame(frame)
     end
 end
 
-local RQL_PLUS_TIMER = 0
+-- Event-driven [+] scanning.
+--
+-- The old implementation ran a full chat-frame scan ~33 times per second
+-- (every 0.03s) regardless of whether chat had changed. On busy zones /
+-- raids that constant `frame:GetRegions()` + regex work was a real source
+-- of random lag spikes (GC pressure from throwaway region tables).
+--
+-- Now we scan only when:
+--   * a CHAT_MSG_* event arrives (with a tiny delay so the chat frame has
+--     laid out the new region before we measure it), or
+--   * the user scrolls / resizes a chat frame (hooked below), or
+--   * the addon just finished loading (initial pass over existing chat).
+--
+-- Scans are rate-limited to at most one every RQL_SCAN_MIN_INTERVAL.
+local RQL_SCAN_MIN_INTERVAL = 0.25   -- hard cap: no more than 4 scans/sec
+local RQL_SCAN_DELAY        = 0.05   -- delay after event so regions are laid out
+local RQL_SCAN_PENDING_AT   = nil
+local RQL_SCAN_LAST_AT      = 0
+
+function RQL_SchedulePlusScan(delay)
+    local now = GetTime()
+    local at  = now + (delay or RQL_SCAN_DELAY)
+    local earliest = RQL_SCAN_LAST_AT + RQL_SCAN_MIN_INTERVAL
+    if at < earliest then at = earliest end
+    if not RQL_SCAN_PENDING_AT or at < RQL_SCAN_PENDING_AT then
+        RQL_SCAN_PENDING_AT = at
+    end
+end
+
+-- Called every frame from the main OnUpdate. Cheap when idle: two compares
+-- and an early return. Only does real work when a scan is due.
 function RQL_PlusTick(elapsed)
-    RQL_PLUS_TIMER = RQL_PLUS_TIMER + (elapsed or 0)
+    if not RQL_SCAN_PENDING_AT then return end
-    if RQL_PLUS_TIMER < 0.03 then return end
+    if GetTime() < RQL_SCAN_PENDING_AT then return end
-    RQL_PLUS_TIMER = 0
+    RQL_SCAN_PENDING_AT = nil
+    RQL_SCAN_LAST_AT    = GetTime()
+
     RQL_PoolIndex = 0
     local maxFrames = NUM_CHAT_WINDOWS or 7
     for i = 1, maxFrames do
         local f = getglobal("ChatFrame" .. i)
-        if f then RQL_ProcessChatFrame(f) end
+        -- IsVisible() is false for docked tabs that aren't the front tab
+        -- and for hidden / minimized chat windows, so we naturally skip
+        -- all of those.
+        if f and f.IsVisible and f:IsVisible() then
+            RQL_ProcessChatFrame(f)
+        end
     end
     RQL_HideUnusedButtons()
 end
 
+-- Watcher frame that listens for chat traffic and requests a rescan.
+local RQL_ChatWatch = CreateFrame("Frame", "RQL_ChatWatch")
+local RQL_CHAT_EVENTS = {
+    "CHAT_MSG_SAY", "CHAT_MSG_YELL", "CHAT_MSG_EMOTE", "CHAT_MSG_TEXT_EMOTE",
+    "CHAT_MSG_WHISPER", "CHAT_MSG_WHISPER_INFORM",
+    "CHAT_MSG_PARTY", "CHAT_MSG_RAID", "CHAT_MSG_RAID_LEADER", "CHAT_MSG_RAID_WARNING",
+    "CHAT_MSG_GUILD", "CHAT_MSG_OFFICER",
+    "CHAT_MSG_CHANNEL",
+    "CHAT_MSG_SYSTEM", "CHAT_MSG_LOOT", "CHAT_MSG_TRADESKILLS",
+    "CHAT_MSG_BATTLEGROUND", "CHAT_MSG_BATTLEGROUND_LEADER",
+}
+for i = 1, table.getn(RQL_CHAT_EVENTS) do
+    RQL_ChatWatch:RegisterEvent(RQL_CHAT_EVENTS[i])
+end
+RQL_ChatWatch:SetScript("OnEvent", function()
+    RQL_SchedulePlusScan()
+end)
+
 local function RQL_HookChatLinks()
-    -- Nothing to hook up-front; the OnUpdate ticker in the event handler
+    -- Chat scrolling / paging moves existing linked lines but doesn't fire
-    -- calls RQL_PlusTick() every frame and it drives everything else.
+    -- an event. Wrap the standard scroll helpers so [+] follows the text.
+    local names = { "ScrollUp", "ScrollDown", "ScrollToTop",
+                    "ScrollToBottom", "PageUp", "PageDown" }
+    local maxFrames = NUM_CHAT_WINDOWS or 7
+    for i = 1, maxFrames do
+        local f = getglobal("ChatFrame" .. i)
+        if f then
+            for j = 1, table.getn(names) do
+                local n = names[j]
+                local flag = "_rql_hooked_" .. n
+                if f[n] and not f[flag] then
+                    local orig = f[n]
+                    f[flag] = orig
+                    f[n] = function()
+                        orig(f)
+                        RQL_SchedulePlusScan()
+                    end
+                end
+            end
+        end
+    end
+    -- Do one pass shortly after login so already-visible chat gets [+].
+    RQL_SchedulePlusScan(0.3)
 end
 -- ---------- events / slash ----------
 

RelationshipsQuestAndItemBrowser.toc

@@ -2,7 +2,7 @@
 ## Title: Relationships Quest And Item Browser
 ## Notes: Click quest and item links in chat, browse and search the full quest and item database.
 ## Author: Relationship
-## Version: 1.0
+## Version: 1.1
 ## SavedVariables: RelationshipsQuestAndItemBrowserDB
 RelationshipsQuestAndItemBrowser.xml
 RelationshipsQuestAndItemBrowserData_Init.lua