WoWInterface SVN bdGrid

--[[ Element: Master Looter Icon

 Toggles visibility of the master looter icon.

 Widget

 MasterLooter - Any UI widget.

 Notes

 The default master looter icon will be applied if the UI widget is a texture
 and doesn't have a texture or color defined.

 Examples

   -- Position and size
   local MasterLooter = self:CreateTexture(nil, 'OVERLAY')
   MasterLooter:SetSize(16, 16)
   MasterLooter:SetPoint('TOPRIGHT', self)
   
   -- Register it with oUF
   self.MasterLooter = MasterLooter

 Hooks

 Override(self) - Used to completely override the internal update function.
                  Removing the table key entry will make the element fall-back
                  to its internal function again.

]]

local parent, ns = ...
local oUF = ns.oUF

local Update = function(self, event)
        local unit = self.unit
        local masterlooter = self.MasterLooter
        if(not (UnitInParty(unit) or UnitInRaid(unit))) then
                return masterlooter:Hide()
        end

        if(masterlooter.PreUpdate) then
                masterlooter:PreUpdate()
        end

        local method, pid, rid = GetLootMethod()
        if(method == 'master') then
                local mlUnit
                if(pid) then
                        if(pid == 0) then
                                mlUnit = 'player'
                        else
                                mlUnit = 'party'..pid
                        end
                elseif(rid) then
                        mlUnit = 'raid'..rid
                end

                if(UnitIsUnit(unit, mlUnit)) then
                        masterlooter:Show()
                elseif(masterlooter:IsShown()) then
                        masterlooter:Hide()
                end
        else
                masterlooter:Hide()
        end

        if(masterlooter.PostUpdate) then
                return masterlooter:PostUpdate(masterlooter:IsShown())
        end
end

local Path = function(self, ...)
        return (self.MasterLooter.Override or Update) (self, ...)
end

local ForceUpdate = function(element)
        return Path(element.__owner, 'ForceUpdate')
end

local function Enable(self, unit)
        local masterlooter = self.MasterLooter
        if(masterlooter) then
                masterlooter.__owner = self
                masterlooter.ForceUpdate = ForceUpdate

                self:RegisterEvent('PARTY_LOOT_METHOD_CHANGED', Path, true)
                self:RegisterEvent('GROUP_ROSTER_UPDATE', Path, true)

                if(masterlooter:IsObjectType('Texture') and not masterlooter:GetTexture()) then
                        masterlooter:SetTexture([[Interface\GroupFrame\UI-Group-MasterLooter]])
                end

                return true
        end
end

local function Disable(self)
        if(self.MasterLooter) then
                self.MasterLooter:Hide()
                self:UnregisterEvent('PARTY_LOOT_METHOD_CHANGED', Path)
                self:UnregisterEvent('GROUP_ROSTER_UPDATE', Path)
        end
end

oUF:AddElement('MasterLooter', Path, Enable, Disable)