From ab3d853f02a76100cbaa47f63e84f01e2a5624ee Mon Sep 17 00:00:00 2001
From: shagu <ericmauser@googlemail.com>
Date: Mon, 18 Jan 2021 16:15:45 +0100
Subject: [PATCH] unitframes: add support for focus target frames

---
 api/config.lua     | 12 +++++++++++-
 api/unitframes.lua | 19 ++++++++++++++-----
 modules/focus.lua  |  6 ++++++
 modules/gui.lua    |  9 +++++----
 4 files changed, 36 insertions(+), 10 deletions(-)

diff --git a/api/config.lua b/api/config.lua
index b2aa5916..2646b512 100644
--- a/api/config.lua
+++ b/api/config.lua
@@ -247,6 +247,16 @@ function pfUI:LoadConfig()
   pfUI:UpdateConfig("unitframes", "focus",       "buffsize",         "12")
   pfUI:UpdateConfig("unitframes", "focus",       "debuffsize",       "12")
 
+  pfUI:UpdateConfig("unitframes", "focustarget", "visible",          "0")
+  pfUI:UpdateConfig("unitframes", "focustarget", "width",            "80")
+  pfUI:UpdateConfig("unitframes", "focustarget", "height",           "12")
+  pfUI:UpdateConfig("unitframes", "focustarget", "pheight",          "-1")
+  pfUI:UpdateConfig("unitframes", "focustarget", "buffs",            "off")
+  pfUI:UpdateConfig("unitframes", "focustarget", "debuffs",          "off")
+  pfUI:UpdateConfig("unitframes", "focustarget", "txthpleft",        "none")
+  pfUI:UpdateConfig("unitframes", "focustarget", "txthpcenter",      "name")
+  pfUI:UpdateConfig("unitframes", "focustarget", "txthpright",       "none")
+
   pfUI:UpdateConfig("unitframes", "group",       "portrait",         "off")
   pfUI:UpdateConfig("unitframes", "group",       "width",            "164")
   pfUI:UpdateConfig("unitframes", "group",       "height",           "32")
@@ -357,7 +367,7 @@ function pfUI:LoadConfig()
   pfUI:UpdateConfig("unitframes", "ptarget",     "txthpright",       "none")
   pfUI:UpdateConfig("unitframes", "ptarget",     "overhealperc",     "10")
 
-  local ufs = { "player", "target", "focus", "group", "grouptarget", "grouppet", "raid", "ttarget", "pet", "ptarget", "fallback", "tttarget" }
+  local ufs = { "player", "target", "focus", "focustarget", "group", "grouptarget", "grouppet", "raid", "ttarget", "pet", "ptarget", "fallback", "tttarget" }
   for _, unit in pairs(ufs) do
     pfUI:UpdateConfig("unitframes", unit,      "visible",          "1")
     pfUI:UpdateConfig("unitframes", unit,      "showPVP",          "0")
diff --git a/api/unitframes.lua b/api/unitframes.lua
index fa6dfbe0..ce3efba8 100644
--- a/api/unitframes.lua
+++ b/api/unitframes.lua
@@ -295,7 +295,7 @@ function pfUI.uf:UpdateVisibility()
   end
 
   -- vanilla visibility
-  if self.unitname and self.unitname ~= "focus" then
+  if self.unitname and self.unitname ~= "focus" and self.unitname ~= "focustarget" then
     self:Show()
   elseif visibility == "hide" then
     self:Hide()
@@ -840,14 +840,23 @@ function pfUI.uf.OnUpdate()
     this.fullupdate = nil
   end
 
-  -- early return on unset focus frames
-  if this.unitname then
+  if this == pfFocus then -- handle pseudo focus frames
     local unitname = ( this.label and UnitName(this.label) ) or ""
 
-    if this.unitname == "focus" then
-      return
+    if pfFocusTarget then -- update focus target
+      pfFocusTarget.label = this.label and this.label .. "target" or nil
+      local focustargetname = pfFocusTarget.label and UnitName(pfFocusTarget.label) or nil
+
+      if pfFocusTarget.lastUnit ~= focustargetname then
+        pfFocusTarget.lastUnit = focustargetname
+        pfFocusTarget.instantRefresh = true
+        pfUI.uf:RefreshUnit(pfFocusTarget, "all")
+      end
     end
 
+    -- break here on unset focus frames
+    if not this.unitname or this.unitname == "focus" then return end
+
     -- focus unit detection
     if this.unitname ~= strlower(unitname) then
       -- invalid focus frame
diff --git a/modules/focus.lua b/modules/focus.lua
index 984ea21e..e4b9f1b4 100644
--- a/modules/focus.lua
+++ b/modules/focus.lua
@@ -7,6 +7,12 @@ pfUI:RegisterModule("focus", "vanilla:tbc", function ()
   pfUI.uf.focus:SetPoint("BOTTOMLEFT", UIParent, "BOTTOM", 220, 220)
   UpdateMovable(pfUI.uf.focus)
   pfUI.uf.focus:Hide()
+
+  pfUI.uf.focustarget = pfUI.uf:CreateUnitFrame("FocusTarget", nil, C.unitframes.focustarget, .2)
+  pfUI.uf.focustarget:UpdateFrameSize()
+  pfUI.uf.focustarget:SetPoint("BOTTOMLEFT", pfUI.uf.focus, "TOP", 0, 10)
+  UpdateMovable(pfUI.uf.focustarget)
+  pfUI.uf.focustarget:Hide()
 end)
 
 -- register focus emulation commands for vanilla
diff --git a/modules/gui.lua b/modules/gui.lua
index 67fdefb6..a8ec6211 100644
--- a/modules/gui.lua
+++ b/modules/gui.lua
@@ -1595,10 +1595,11 @@ pfUI:RegisterModule("gui", "vanilla:tbc", function ()
       [5] = { "pet",         T["Pet"] },
       [6] = { "ptarget",     T["Pet-Target"]},
       [7] = { "focus",       T["Focus"] },
-      [8] = { "group",       T["Group"] },
-      [9] = { "grouptarget", T["Group-Target"]},
-      [10] = { "grouppet",   T["Group-Pet"] },
-      [11] = { "raid",       T["Raid"] },
+      [8] = { "focustarget", T["Focus-Target"] },
+      [9] = { "group",       T["Group"] },
+      [10] = { "grouptarget", T["Group-Target"]},
+      [11] = { "grouppet",   T["Group-Pet"] },
+      [12] = { "raid",       T["Raid"] },
     }
 
     CreateGUIEntry(T["Unit Frames"], T["Click Casting"], function()