commit from backup

Libraries/oUF/elements/picon.lua

@@ -0,0 +1,85 @@
+--[[ 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)