[siweia]

local function UpdateTargetMark(self)
    local mark = self.targetMark
    if not mark then return end
 
    if UnitIsUnit(self.unit, "target") and not UnitIsUnit(self.unit, "player") then
        mark:Show()
    else
        mark:Hide()
    end
end
 
local function PostUpdatePlates(self, event, unit)
    -- Update Mark
    UpdateTargetMark(self)
 
    -- Unit Classification
    local class = UnitClassification(unit)
    if self.creatureIcon then
        if class and classtex[class] then
            local tex, a, b, c, d = unpack(classtex[class])
            self.creatureIcon:SetTexture(tex)
            self.creatureIcon:SetTexCoord(a, b, c, d)
        else
            self.creatureIcon:SetTexture(nil)
        end
    end
 
    -- Update PlayerPlate
    if event == "NAME_PLATE_UNIT_ADDED" then
        if UnitIsUnit(unit, "player") then
            self.nameFrame:Hide()
            self.Power:Show()
 
        else
            self.nameFrame:Show()
            self.Power:Hide()
        end
    elseif event == "NAME_PLATE_UNIT_REMOVED" then
        self.nameFrame:Hide()
        self.Power:Hide()
    end
end

"self.nameFrame" is the parent for healthBar's name and health value.

How to disable castbar for playerplate? It seems like not working if I just simply show/hide in callbacks.