emeral

function BasicUnitFrames_Button_OnLoad(self)
    self:RegisterForDrag("LeftButton")
    self:RegisterEvent("UNIT_HEALTH")
    self:RegisterEvent("UNIT_MAXHEALTH")
    self.healthbar = getglobal(self:GetName().."_HealthBar")
    self.name = getglobal(self.GetName().."_Name")
end

function BasicUnitFrames_Button_OnShow(self)
    local unit = self.GetAttribute("unit")
    if unit then
        self.name:SetText(UnitName(unit))
        local class = select(2, UnitClass(unit)) or "WARRIOR"
        local color = RAID_CLASS_COLORS[class]
        self.healthbar:SetStatusBarColor(color.r, color.g, color.b)
    end
end

function BasicUnitFrames_Button_OnEvent(self, event, ...)
    local unit = ...
    if self:GetAttribute("unit") == unit then
        if event == "UNIT_MAXHEALTH" then
            self.healthbar:SetMinMaxValues(0, UnitHealthMax(unit))
            self.healthbar:SetValue(UnitHealth(unit))
        elseif event == "UNIT_HEALTH" then
            self.healthbar:SetValue(UnitHealth(unit))
        end
    end
end

function BasicUnitFrames_Button_OnDragStart(self, button)
    BasicUnitFrames_Header:StartMoving()
    BasicUnitFrames_Header:StopMovingOrSizing()
end

function BasicUnitFrames_Button_OnDragStop(self, button)
    if BasicUnitFrames_Header.isMoving then
        BasicUnitFrames_Header:StopMovingOrSizing()
    end
end