idPopbar = {}

-- general stuff ------------------
function idPopbar:Enable()
    self.PoppedBar = false

    local oldActionButton_HideGrid

    oldActionButton_HideGrid = ActionButton_HideGrid
    ActionButton_HideGrid = function(Button)
        Button = Button or this
        if string.find(Button:GetName(), 'idPopbarButton') then
            idPopbar:alterButtonLooks(Button)
        end
        oldActionButton_HideGrid(Button)
    end

    self.MainBar = self:initMainbar()
    self.Popbar = self:initPopbar()

    MainMenuBar:Hide()
    self.MainBar:Show()
end

-- button bindings ----------------
function idPopbar:ButtonDown(nButton)
    if self.PoppedBar then
        Button = getglobal('idPopbarButton'..nButton)
        if Button:GetButtonState() == 'NORMAL' then
            Button:SetButtonState('PUSHED')
        end
    end
end
function idPopbar:ButtonUp(nButton)
    if self.PoppedBar then
        Button = getglobal('idPopbarButton'..nButton)
        if Button:GetButtonState() == 'PUSHED' then
            Button:SetButtonState('NORMAL')
            UseAction(ActionButton_GetPagedID(Button), 0, onSelf)
            if IsCurrentAction(ActionButton_GetPagedID(Button)) then
                Button:SetChecked(1)
            else
                Button:SetChecked(0)
            end
        end
        self:unpopBar(nButton)
    else
        self:popBar(nButton)
    end
end
function idPopbar:popBar(nBar)
    local j = nBar * 12 - 11
    for i=1,12 do
        getglobal('idPopbarButton'..i):SetID(j)
        j = j + 1
    end

    self.Popbar:SetPoint('RIGHT', self.Mainbar['Drawer'..nBar], 'LEFT', 1, 0)
    self.Popbar:Show()
    self.PoppedBar = nBar
end
function idPopbar:unpopBar(nBar)
    self.Popbar:Hide()
    self.PoppedBar = false
end

-- bar looks ----------------------
function idPopbar:alterButtonLooks(Button)
    bg = getglobal(Button:GetName()..'NormalTexture2') or getglobal(Button:GetName()..'NormalTexture')
    ic = getglobal(Button:GetName()..'Icon')
    bg:SetAlpha(0)
    ic:SetTexCoord(0.07, 0.93, 0.07, 0.93)
end
function idPopbar:giveStandardBackground(Frame)
    Frame:SetBackdrop({
        bgFile = 'Interface\\Tooltips\\UI-Tooltip-Background',
        edgeFile = '',
        tile = true,
        tileSize = 16,
        edgeSize = 0,
        insets = {
            left = 0,
            right = 0,
            top = 0,
            bottom = 0
        }
    })
    Frame:SetBackdropColor(0,0,0,0.4)
end
function idPopbar:addBar(name, first, last)
    local Button
    local totalWidth
    local totalHeight

    Button = getglobal(name..first)
    Button:ClearAllPoints()
    Button:SetPoint('CENTER', UIParent, 'CENTER')

    for i=first+1, last do
        Button = getglobal(name..i)
        Button:ClearAllPoints()
        Button:SetPoint('LEFT', getglobal(name..i-1), 'RIGHT')
    end

    totalWidth = ((last-first)+1)*getglobal(name..first):GetWidth()
    totalHeight = getglobal(name..first):GetHeight()

    return totalWidth, totalHeight
end
function idPopbar:addDrawer()
    local Drawer = CreateFrame('Button', nil, UIParent)

    Drawer:SetWidth(20)
    Drawer:SetHeight(40)

    self:giveStandardBackground(Drawer)

    return Drawer
end
function idPopbar:initMainbar()
    local Mainbar = CreateFrame('frame', nil, UIParent)
    Mainbar.Drawer1 = self:addDrawer()
    Mainbar.Drawer2 = self:addDrawer()
    Mainbar.Drawer3 = self:addDrawer()
    Mainbar.Drawer4 = self:addDrawer()
    Mainbar.Drawer5 = self:addDrawer()

    Mainbar:SetWidth(Mainbar.Drawer1:GetWidth())
    Mainbar:SetHeight(Mainbar.Drawer1:GetHeight()*5+4) -- plus 1px padding

    Mainbar.Drawer1:ClearAllPoints()
    Mainbar.Drawer1:SetPoint('BOTTOMLEFT', Mainbar, 'BOTTOMLEFT')

    for i=2,5 do
        Mainbar['Drawer'..i]:ClearAllPoints()
        Mainbar['Drawer'..i]:SetPoint('BOTTOM', Mainbar['Drawer'..i-1], 'TOP', 0, 1)
    end

    Mainbar:ClearAllPoints()
    Mainbar:SetPoint('BOTTOMRIGHT', UIParent, 'BOTTOMRIGHT', -2, 2)
    Mainbar:Show()

    return Mainbar
end
function idPopbar:initPopbar()
    local Popbar = CreateFrame('frame', nil, UIParent)

    w,h = self:addBar('idPopbarButton',  1, 12)

    Popbar:SetWidth(w)
    Popbar:SetHeight(h)

    for i=1,12 do
        getglobal('idPopbarButton'..i):SetParent(Popbar)
        self:alterButtonLooks(getglobal('idPopbarButton'..i))
    end

    idPopbarButton1:ClearAllPoints()
    idPopbarButton1:SetPoint('BOTTOMLEFT', Popbar, 'BOTTOMLEFT')

    self:giveStandardBackground(Popbar)
    Popbar:ClearAllPoints()
    Popbar:SetPoint('RIGHT', self.Mainbar.Drawer1, 'LEFT', 1, 0)

    return Popbar
end

idPopbar:Enable()