WoWInterface SVN SoopUI

--[[ Element: Phasing Icon

 Toggles visibility of the phase icon based on the units phasing compared to the
 player.

 Widget

 PhaseIcon - Any UI widget.

 Notes

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

 Examples

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

 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 picon = self.PhaseIcon
        if(picon.PreUpdate) then
                picon:PreUpdate()
        end

        local inPhase = UnitInPhase(self.unit)
        if(inPhase) then
                picon:Hide()
        else
                picon:Show()
        end

        if(picon.PostUpdate) then
                return picon:PostUpdate(inPhase)
        end
end

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

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

local Enable = function(self)
        local picon = self.PhaseIcon
        if(picon) then
                picon.__owner = self
                picon.ForceUpdate = ForceUpdate

                self:RegisterEvent('UNIT_PHASE', Path, true)

                if(picon:IsObjectType'Texture' and not picon:GetTexture()) then
                        picon:SetTexture[[Interface\TargetingFrame\UI-PhasingIcon]]
                end

                return true
        end
end

local Disable = function(self)
        local picon = self.PhaseIcon
        if(picon) then
                picon:Hide()
                self:UnregisterEvent('UNIT_PHASE', Path)
        end
end

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