pfUI/modules/castbar.lua

pfUI:RegisterModule("castbar", function ()

  local font = C.castbar.use_unitfonts == "1" and pfUI.font_square or pfUI.font_default
  local font_size = C.castbar.use_unitfonts == "1" and C.global.font_square_size or C.global.font_size

  local default_border = C.appearance.border.default
  if C.appearance.border.unitframes ~= "-1" then
    default_border = C.appearance.border.unitframes
  end

  pfUI.castbar = CreateFrame("Frame", "pfCastBar", UIParent)

  -- hide blizzard
  if C.castbar.player.hide_blizz == "1" then
    CastingBarFrame:UnregisterAllEvents()
    CastingBarFrame:Hide()
  end

  -- [[ pfPlayerCastbar ]] --
  pfUI.castbar.player = CreateFrame("Frame", "pfPlayerCastbar", UIParent)
  pfUI.castbar.player:SetFrameStrata("MEDIUM")
  CreateBackdrop(pfUI.castbar.player, default_border)
  pfUI.castbar.player:SetHeight(C.global.font_size + default_border)

  if pfUI.uf.player then
    pfUI.castbar.player:SetPoint("TOPLEFT",pfUI.uf.player,"BOTTOMLEFT",0,-default_border*2)
    pfUI.castbar.player:SetWidth(pfUI.uf.player:GetWidth())
  else
    pfUI.castbar.player:SetPoint("CENTER", 0, -200)
    pfUI.castbar.player:SetWidth(200)
  end

  UpdateMovable(pfUI.castbar.player)
  pfUI.castbar.player:Hide()
  pfUI.castbar.player.delay = 0

  -- statusbar
  pfUI.castbar.player.bar = CreateFrame("StatusBar", nil, pfUI.castbar.player)
  pfUI.castbar.player.bar:SetStatusBarTexture("Interface\\AddOns\\pfUI\\img\\bar")
  pfUI.castbar.player.bar:ClearAllPoints()
  pfUI.castbar.player.bar:SetAllPoints(pfUI.castbar.player)
  pfUI.castbar.player.bar:SetMinMaxValues(0, 100)
  pfUI.castbar.player.bar:SetValue(20)
  local r,g,b,a = strsplit(",", C.appearance.castbar.castbarcolor)
  pfUI.castbar.player.bar:SetStatusBarColor(r,g,b,a)

  -- text left
  pfUI.castbar.player.bar.left = pfUI.castbar.player.bar:CreateFontString("Status", "DIALOG", "GameFontNormal")
  pfUI.castbar.player.bar.left:ClearAllPoints()
  pfUI.castbar.player.bar.left:SetPoint("TOPLEFT", pfUI.castbar.player.bar, "TOPLEFT", 3, 0)
  pfUI.castbar.player.bar.left:SetPoint("BOTTOMRIGHT", pfUI.castbar.player.bar, "BOTTOMRIGHT", -3, 0)
  pfUI.castbar.player.bar.left:SetNonSpaceWrap(false)
  pfUI.castbar.player.bar.left:SetFontObject(GameFontWhite)
  pfUI.castbar.player.bar.left:SetTextColor(1,1,1,1)
  pfUI.castbar.player.bar.left:SetFont(font, font_size, "OUTLINE")
  pfUI.castbar.player.bar.left:SetText("left")
  pfUI.castbar.player.bar.left:SetJustifyH("left")

  -- text right
  pfUI.castbar.player.bar.right = pfUI.castbar.player.bar:CreateFontString("Status", "DIALOG", "GameFontNormal")
  pfUI.castbar.player.bar.right:ClearAllPoints()
  pfUI.castbar.player.bar.right:SetPoint("TOPLEFT", pfUI.castbar.player.bar, "TOPLEFT", 3, 0)
  pfUI.castbar.player.bar.right:SetPoint("BOTTOMRIGHT", pfUI.castbar.player.bar, "BOTTOMRIGHT", -3, 0)
  pfUI.castbar.player.bar.right:SetNonSpaceWrap(false)
  pfUI.castbar.player.bar.right:SetFontObject(GameFontWhite)
  pfUI.castbar.player.bar.right:SetTextColor(1,1,1,1)
  pfUI.castbar.player.bar.right:SetFont(font, font_size, "OUTLINE")
  pfUI.castbar.player.bar.right:SetText("right")
  pfUI.castbar.player.bar.right:SetJustifyH("right")

  -- events
  pfUI.castbar.player:RegisterEvent("SPELLCAST_START")
  pfUI.castbar.player:RegisterEvent("SPELLCAST_STOP")
  pfUI.castbar.player:RegisterEvent("SPELLCAST_DELAYED")
  pfUI.castbar.player:RegisterEvent("SPELLCAST_CHANNEL_START")
  pfUI.castbar.player:RegisterEvent("SPELLCAST_CHANNEL_STOP")
  pfUI.castbar.player:RegisterEvent("SPELLCAST_CHANNEL_UPDATE")
  pfUI.castbar.player:RegisterEvent("SPELLCAST_FAILED")
  pfUI.castbar.player:RegisterEvent("SPELLCAST_INTERRUPTED")

  local scanner = CreateFrame("GameTooltip", "pfSpellScanner", nil, "GameTooltipTemplate")
  scanner:SetOwner(WorldFrame, "ANCHOR_NONE")

  local delayByLag = CreateFrame("Frame", "pfDelayCast", nil)
  delayByLag.currentCast = nil
  delayByLag.startTime = nil

  function delayByLag:SetCast(cast)
    if not delayByLag.currentCast and pfUI.castbar.player[cast] then
      delayByLag.currentCast = cast
      delayByLag.startTime = GetTime()
    end
  end

  delayByLag:SetScript("OnUpdate", function()
    if this.currentCast and this.startTime then
      local _,_, lag = GetNetStats()
      if this.startTime + lag/1000 < GetTime() then
        pfUI.castbar.player[this.currentCast](true)
        this.currentCast = nil
        this.startTime = nil
      end
    end
  end)

  local aimedshot = L["customcast"]["AIMEDSHOT"]
  local multishot = L["customcast"]["MULTISHOT"]


  pfUI.castbar.player[aimedshot] = function(begin)
    if begin then
      local duration = 3000

      for i=1,32 do
        if UnitBuff("player", i) == "Interface\\Icons\\Racial_Troll_Berserk" then
          local berserk = 0.3
          if((UnitHealth("player")/UnitHealthMax("player")) >= 0.40) then
            berserk = (1.30 - (UnitHealth("player") / UnitHealthMax("player"))) / 3
          end
          duration = duration / (1 + berserk)
        elseif UnitBuff("player", i) == "Interface\\Icons\\Ability_Hunter_RunningShot" then
          duration = duration / 1.4
        elseif UnitBuff("player", i) == "Interface\\Icons\\Ability_Warrior_InnerRage" then
          duration = duration / 1.3
        elseif UnitBuff("player", i) == "Interface\\Icons\\Inv_Trinket_Naxxramas04" then
          duration = duration / 1.2
        elseif UnitDebuff("player", i) == "Interface\\Icons\\Spell_Shadow_CurseOfTounges" then
          duration = duration / 0.5
        end
      end

      if not pfUI.castbar.player.casting then
        pfUI.castbar.player:SpellcastStart(aimedshot, duration)
      end
    else
      pfUI.castbar.player:SpellcastStop()
    end
  end

  pfUI.castbar.player[multishot] = function(begin)
    if begin then
      local duration = 500
      if not pfUI.castbar.player.casting then
        pfUI.castbar.player:SpellcastStart(multishot, duration)
      end
    else
      pfUI.castbar.player:SpellcastStop()
    end
  end

  hooksecurefunc("CastSpell", function(id, bookType)
    local spellName = GetSpellName(id, bookType)
    delayByLag:SetCast(spellName)
  end, true)

  hooksecurefunc("CastSpellByName", function(spellName, target)
    delayByLag:SetCast(spellName)
  end, true)

  hooksecurefunc("UseAction", function(slot, target, button)
    if GetActionText(slot) or not IsCurrentAction(slot) then return end
    scanner:ClearLines()
    scanner:SetAction(slot)
    local spellName = pfSpellScannerTextLeft1:GetText()
    delayByLag:SetCast(spellName)
  end, true)

  function pfUI.castbar.player:SpellcastStart(spell, duration)
    pfUI.castbar.player.delay = 0
    pfUI.castbar.player.spell = spell
    pfUI.castbar.player.bar.left:SetText(spell)
    local r,g,b,a = strsplit(",", C.appearance.castbar.castbarcolor)
    pfUI.castbar.player.bar:SetStatusBarColor(r,g,b,a)
    pfUI.castbar.player.startTime = GetTime()
    pfUI.castbar.player.maxValue = duration / 1000
    pfUI.castbar.player.endTime = nil
    pfUI.castbar.player.bar:SetMinMaxValues(0, pfUI.castbar.player.maxValue)
    pfUI.castbar.player.bar:SetValue(pfUI.castbar.player.startTime)
    pfUI.castbar.player.holdTime = 0
    pfUI.castbar.player.casting = 1
    pfUI.castbar.player.channeling = nil
    pfUI.castbar.player.mode = "casting"
    pfUI.castbar.player.fadeout = nil
    pfUI.castbar.player:SetAlpha(1)
    pfUI.castbar.player:Show()
  end

  function pfUI.castbar.player:SpellcastStop()
    delayByLag.currentCast = nil
    delayByLag.startTime = nil

    if pfUI.castbar.player.casting then
      pfUI.castbar.player.fadeout = 1
      pfUI.castbar.player.casting = nil
      pfUI.castbar.player.bar:SetMinMaxValues(1,pfUI.castbar.player.bar:GetValue())
    end
  end

  function pfUI.castbar.player:SpellcastChannelStart(duration, spell)
    pfUI.castbar.player.delay = 0
    pfUI.castbar.player.spell = spell
    pfUI.castbar.player.bar.left:SetText(spell)
    local r,g,b,a = strsplit(",", C.appearance.castbar.channelcolor)
    pfUI.castbar.player.bar:SetStatusBarColor(r,g,b,a)
    pfUI.castbar.player.maxValue = nil
    pfUI.castbar.player.startTime = GetTime()
    pfUI.castbar.player.endTime = pfUI.castbar.player.startTime + (arg1 / 1000)
    pfUI.castbar.player.duration = duration / 1000
    pfUI.castbar.player.bar:SetMinMaxValues(pfUI.castbar.player.startTime, pfUI.castbar.player.endTime)
    pfUI.castbar.player.bar:SetValue(pfUI.castbar.player.endTime)
    pfUI.castbar.player.holdTime = 0
    pfUI.castbar.player.casting = nil
    pfUI.castbar.player.channeling = 1
    pfUI.castbar.player.fadeout = nil
    pfUI.castbar.player:SetAlpha(1)
    pfUI.castbar.player:Show()
  end

  function pfUI.castbar.player:SpellcastChannelStop()
    delayByLag.currentCast = nil
    delayByLag.startTime = nil

    if pfUI.castbar.player.channeling then
      pfUI.castbar.player.fadeout = 1
      pfUI.castbar.player.channeling = nil

      if GetTime() + 0.3 < pfUI.castbar.player.endTime then
        pfUI.castbar.player.bar:SetStatusBarColor(1,.5,.5,1)
        pfUI.castbar.player.bar:SetMinMaxValues(1,100)
        pfUI.castbar.player.bar:SetValue(100)
      end
    end
  end

  pfUI.castbar.player:SetScript("OnEvent", function ()
    if ( event == "SPELLCAST_START" ) then
      pfUI.castbar.player:SpellcastStart(arg1, arg2)

    elseif ( event == "SPELLCAST_CHANNEL_START" ) then
      pfUI.castbar.player:SpellcastChannelStart(arg1, arg2)

    elseif event == "SPELLCAST_STOP" then
      pfUI.castbar.player:SpellcastStop()

    elseif event == "SPELLCAST_CHANNEL_STOP" then
      pfUI.castbar.player:SpellcastChannelStop()

    elseif event == "SPELLCAST_FAILED" or event == "SPELLCAST_INTERRUPTED" then
      if pfUI.castbar.player.casting then
        pfUI.castbar.player.fadeout = 1
        pfUI.castbar.player.casting = nil

        pfUI.castbar.player.bar:SetStatusBarColor(1,.5,.5,1)
        pfUI.castbar.player.bar:SetMinMaxValues(1,100)
        pfUI.castbar.player.bar:SetValue(100)
      end

    elseif ( event == "SPELLCAST_DELAYED" ) then
      if( pfUI.castbar.player:IsShown() ) then
        pfUI.castbar.player.delay = pfUI.castbar.player.delay + arg1/1000
      end

    elseif ( event == "SPELLCAST_CHANNEL_UPDATE" ) then
      if ( pfUI.castbar.player:IsShown() ) then
        pfUI.castbar.player.delay = pfUI.castbar.player.delay + arg1/1000
        local origDuration = pfUI.castbar.player.endTime - pfUI.castbar.player.startTime
        pfUI.castbar.player.endTime = GetTime() + (arg1 / 1000)
        pfUI.castbar.player.startTime = pfUI.castbar.player.endTime - origDuration
        pfUI.castbar.player.bar:SetMinMaxValues(pfUI.castbar.player.startTime, pfUI.castbar.player.endTime)
      end
    end
  end)

  pfUI.castbar.player:SetScript("OnUpdate", function ()
    if C.castbar.player.hide_pfui == "1" then pfUI.castbar.player:Hide() return end

    -- cast
    if pfUI.castbar.player.casting then
      local cur = GetTime() - pfUI.castbar.player.startTime - pfUI.castbar.player.delay
      local max = pfUI.castbar.player.maxValue
      local delay = pfUI.castbar.player.delay

      pfUI.castbar.player.bar:SetValue(cur)

      if cur > max then cur = max end

      if delay > 0 then
        delay = "|cffffaaaa+" .. round(delay,1) .. " |r "
        pfUI.castbar.player.bar.right:SetText(delay .. round(cur,1) .. " / " .. round(max,1))
      else
        pfUI.castbar.player.bar.right:SetText(round(cur,1) .. " / " .. round(max,1))
      end

      return

    -- channel
    elseif pfUI.castbar.player.channeling then
      local time = GetTime()
      local barValue = pfUI.castbar.player.startTime + (pfUI.castbar.player.endTime - time)

      pfUI.castbar.player.bar:SetValue( barValue )

      local cur = pfUI.castbar.player.endTime - GetTime()
      local max = pfUI.castbar.player.endTime - pfUI.castbar.player.startTime
      local delay = pfUI.castbar.player.delay
      if cur > max then cur = max end
      if ( time > pfUI.castbar.player.endTime ) then
        time = pfUI.castbar.player.endTime
      end
      if ( time >= pfUI.castbar.player.endTime ) then
        pfUI.castbar.player.channeling = nil
        pfUI.castbar.player.fadeout = 1
        return
      end
      if delay > 0 then
        delay = "|cffffaaaa-" .. round(delay,1) .. " |r "
        pfUI.castbar.player.bar.right:SetText(delay .. round(cur,1))
      else
        pfUI.castbar.player.bar.right:SetText(round(cur,1))
      end

      return

    -- fadeout
    elseif pfUI.castbar.player.fadeout and pfUI.castbar.player:GetAlpha() > 0 then
      pfUI.castbar.player:SetAlpha(pfUI.castbar.player:GetAlpha()-0.025)
      if pfUI.castbar.player:GetAlpha() == 0 then
        pfUI.castbar.player:Hide()
        pfUI.castbar.player.fadeout = nil
      end
    end
  end)

  -- [[ pfTargetCastbar ]] --
  pfUI.castbar.target = CreateFrame("Frame", "pfTargetCastbar", UIParent)
  pfUI.castbar.target:SetFrameStrata("MEDIUM")
  CreateBackdrop(pfUI.castbar.target, default_border)
  pfUI.castbar.target:SetHeight(C.global.font_size + default_border)

  if pfUI.uf.target then
    pfUI.castbar.target:SetPoint("TOPLEFT",pfUI.uf.target,"BOTTOMLEFT",0,-default_border*2)
    pfUI.castbar.target:SetWidth(pfUI.uf.target:GetWidth())
  else
    pfUI.castbar.target:SetPoint("CENTER", 0, -225)
    pfUI.castbar.target:SetWidth(200)
  end

  UpdateMovable(pfUI.castbar.target)
  pfUI.castbar.target:Hide()


  -- statusbar
  pfUI.castbar.target.bar = CreateFrame("StatusBar", nil, pfUI.castbar.target)
  pfUI.castbar.target.bar:SetStatusBarTexture("Interface\\AddOns\\pfUI\\img\\bar")
  pfUI.castbar.target.bar:ClearAllPoints()
  pfUI.castbar.target.bar:SetAllPoints(pfUI.castbar.target)
  pfUI.castbar.target.bar:SetMinMaxValues(0, 100)
  pfUI.castbar.target.bar:SetValue(20)
  local r,g,b,a = strsplit(",", C.appearance.castbar.castbarcolor)
  pfUI.castbar.target.bar:SetStatusBarColor(r,g,b,a)

  -- text left
  pfUI.castbar.target.bar.left = pfUI.castbar.target.bar:CreateFontString("Status", "DIALOG", "GameFontNormal")
  pfUI.castbar.target.bar.left:ClearAllPoints()
  pfUI.castbar.target.bar.left:SetPoint("TOPLEFT", pfUI.castbar.target.bar, "TOPLEFT", 3, 0)
  pfUI.castbar.target.bar.left:SetPoint("BOTTOMRIGHT", pfUI.castbar.target.bar, "BOTTOMRIGHT", -3, 0)
  pfUI.castbar.target.bar.left:SetNonSpaceWrap(false)
  pfUI.castbar.target.bar.left:SetFontObject(GameFontWhite)
  pfUI.castbar.target.bar.left:SetTextColor(1,1,1,1)
  pfUI.castbar.target.bar.left:SetFont(font, font_size, "OUTLINE")
  pfUI.castbar.target.bar.left:SetText("left")
  pfUI.castbar.target.bar.left:SetJustifyH("left")

  -- text right
  pfUI.castbar.target.bar.right = pfUI.castbar.target.bar:CreateFontString("Status", "DIALOG", "GameFontNormal")
  pfUI.castbar.target.bar.right:ClearAllPoints()
  pfUI.castbar.target.bar.right:SetPoint("TOPLEFT", pfUI.castbar.target.bar, "TOPLEFT", 3, 0)
  pfUI.castbar.target.bar.right:SetPoint("BOTTOMRIGHT", pfUI.castbar.target.bar, "BOTTOMRIGHT", -3, 0)
  pfUI.castbar.target.bar.right:SetNonSpaceWrap(false)
  pfUI.castbar.target.bar.right:SetFontObject(GameFontWhite)
  pfUI.castbar.target.bar.right:SetTextColor(1,1,1,1)
  pfUI.castbar.target.bar.right:SetFont(font, font_size, "OUTLINE")
  pfUI.castbar.target.bar.right:SetText("right")
  pfUI.castbar.target.bar.right:SetJustifyH("right")

  pfUI.castbar.target.bar:SetScript("OnUpdate", function()
    if pfUI.castbar.target.drag and pfUI.castbar.target.drag:IsShown() then this:Show() return end
    if UnitExists("target") and pfUI.castbar.target.casterDB[UnitName("target")] then
      local spellname = pfUI.castbar.target.casterDB[UnitName("target")].cast or 0
      local starttime = pfUI.castbar.target.casterDB[UnitName("target")].starttime or 0
      local casttime = pfUI.castbar.target.casterDB[UnitName("target")].casttime or 0

      if starttime + casttime > GetTime() then
        if pfUI.castbar.target.bar then
          pfUI.castbar.target.bar:SetMinMaxValues(0, casttime)
          pfUI.castbar.target.bar:SetValue(GetTime() - starttime)
          pfUI.castbar.target.bar.left:SetText(spellname)
          pfUI.castbar.target.bar.right:SetText(round(GetTime() - starttime,1) .. " / " .. casttime)
        end
      else
        pfUI.castbar.target.casterDB[UnitName("target")] = nil
        pfUI.castbar.target:Hide()
      end
    else
      pfUI.castbar.target:Hide()
    end
  end)

  pfUI.castbar.target.SPELL_CAST = string.gsub(string.gsub(SPELLCASTOTHERSTART,"%d%$",""), "%%s", "(.+)")
  pfUI.castbar.target.SPELL_PERFORM = string.gsub(string.gsub(SPELLPERFORMOTHERSTART,"%d%$",""), "%%s", "(.+)")
  pfUI.castbar.target.SPELL_GAINS = string.gsub(string.gsub(AURAADDEDOTHERHELPFUL,"%d%$",""), "%%s", "(.+)")
  pfUI.castbar.target.SPELL_AFFLICTED = string.gsub(string.gsub(AURAADDEDOTHERHARMFUL,"%d%$",""), "%%s", "(.+)")
  pfUI.castbar.target.SPELL_HIT = string.gsub(string.gsub(string.gsub(SPELLLOGSELFOTHER,"%d%$",""),"%%d","%%d+"),"%%s","(.+)")
  pfUI.castbar.target.SPELL_CRIT = string.gsub(string.gsub(string.gsub(SPELLLOGCRITSELFOTHER,"%d%$",""),"%%d","%%d+"),"%%s","(.+)")
  pfUI.castbar.target.OTHER_SPELL_HIT = string.gsub(string.gsub(string.gsub(SPELLLOGOTHEROTHER,"%d%$",""), "%%s", "(.+)"), "%%d", "%%d+")
  pfUI.castbar.target.OTHER_SPELL_CRIT = string.gsub(string.gsub(string.gsub(SPELLLOGOTHEROTHER,"%d%$",""), "%%s", "(.+)"), "%%d", "%%d+")

  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_SELF_DAMAGE")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_HOSTILEPLAYER_DAMAGE")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_HOSTILEPLAYER_BUFF")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_FRIENDLYPLAYER_DAMAGE")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_FRIENDLYPLAYER_BUFF")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_HOSTILEPLAYER_BUFFS")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_FRIENDLYPLAYER_BUFFS")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_HOSTILEPLAYER_DAMAGE")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_FRIENDLYPLAYER_DAMAGE")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_SELF_DAMAGE")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PARTY_DAMAGE")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PARTY_BUFF")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_PARTY_DAMAGE")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_PARTY_BUFFS")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_CREATURE_DAMAGE")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_PERIODIC_CREATURE_BUFFS")
  pfUI.castbar.target:RegisterEvent("CHAT_MSG_SPELL_CREATURE_VS_CREATURE_DAMAGE")
  pfUI.castbar.target:RegisterEvent("PLAYER_TARGET_CHANGED")

  pfUI.castbar.target.casterDB = {}

  pfUI.castbar.target:SetScript("OnEvent", function()
    if event == "PLAYER_TARGET_CHANGED" then
      if UnitExists("target") and pfUI.castbar.target.casterDB[UnitName("target")] then
        local starttime = pfUI.castbar.target.casterDB[UnitName("target")].starttime or 0
        local casttime = pfUI.castbar.target.casterDB[UnitName("target")].casttime or 0
        if starttime + casttime > GetTime() then
          if C.castbar.target.hide_pfui == "1" then
            pfUI.castbar.target:Hide()
          else
            pfUI.castbar.target:Show()
          end
        elseif pfUI.castbar.target.drag and not pfUI.castbar.target.drag:IsShown() then
          pfUI.castbar.target.casterDB[UnitName("target")] = nil
          pfUI.castbar.target:Hide()
        end
      end
    elseif arg1 then
      -- (.+) begins to cast (.+).
      for mob, spell in string.gfind(arg1, pfUI.castbar.target.SPELL_CAST) do
        pfUI.castbar.target:Action(mob, spell)
        return
      end
      -- (.+) begins to perform (.+).
      for mob, spell in string.gfind(arg1, pfUI.castbar.target.SPELL_PERFORM) do
        pfUI.castbar.target:Action(mob, spell)
        return
      end

      -- (.+) gains (.+).
      for mob, spell in string.gfind(arg1, pfUI.castbar.target.SPELL_GAINS) do
        pfUI.castbar.target:StopAction(mob, spell)
        return
      end

      -- (.+) is afflicted by (.+).
      for mob, spell in string.gfind(arg1, pfUI.castbar.target.SPELL_AFFLICTED) do
        pfUI.castbar.target:StopAction(mob, spell)
        return
      end

      -- Your (.+) hits (.+) for %d+.
      for spell, mob in string.gfind(arg1, pfUI.castbar.target.SPELL_HIT) do
        pfUI.castbar.target:StopAction(mob, spell)
        return
      end

      -- Your (.+) crits (.+) for %d+.
      for spell, mob in string.gfind(arg1, pfUI.castbar.target.SPELL_CRIT) do
        pfUI.castbar.target:StopAction(mob, spell)
        return
      end

      -- (.+)'s (.+) %a hits (.+) for %d+.
      for _, spell, mob in string.gfind(arg1, pfUI.castbar.target.OTHER_SPELL_HIT) do
        pfUI.castbar.target:StopAction(mob, spell)
        return
      end

      -- (.+)'s (.+) %a crits (.+) for %d+.
      for _, spell, mob in string.gfind(arg1, pfUI.castbar.target.OTHER_SPELL_CRIT) do
        pfUI.castbar.target:StopAction(mob, spell)
        return
      end
    end
  end)

  function pfUI.castbar.target:Action(mob, spell)
    if L["spells"][spell] ~= nil then
      local casttime = L["spells"][spell].t / 1000
      local icon = L["spells"][spell].icon
      pfUI.castbar.target.casterDB[mob] = {cast = spell, starttime = GetTime(), casttime = casttime, icon = icon}
      if UnitExists("target") and pfUI.castbar.target.casterDB[UnitName("target")] then
        if C.castbar.target.hide_pfui == "1" then
          pfUI.castbar.target:Hide()
        else
          pfUI.castbar.target:Show()
        end
      elseif pfUI.castbar.target.drag and not pfUI.castbar.target.drag:IsShown() then
        pfUI.castbar.target:Hide()
      end
    end
  end

  function pfUI.castbar.target:StopAction(mob, spell)
    if pfUI.castbar.target.casterDB[mob] and L["interrupts"][spell] ~= nil then
      pfUI.castbar.target.casterDB[mob] = nil
    end
  end
end)