pfUI:RegisterModule("map", function ()

  function _G.ToggleWorldMap()
    if WorldMapFrame:IsShown() then
      WorldMapFrame:Hide()
    else
      WorldMapFrame:Show()
      table.insert(UISpecialFrames, "WorldMapFrame")
    end
  end

  if not C.position[WorldMapFrame:GetName()] then
    C.position[WorldMapFrame:GetName()] = { alpha = 1.0, scale = 0.7 }
  end
  local c_position = C.position[WorldMapFrame:GetName()]

  local pfMapLoader = CreateFrame("Frame", nil, UIParent)
  pfMapLoader:RegisterEvent("PLAYER_ENTERING_WORLD")
  pfMapLoader:SetScript("OnEvent", function()
    -- do not load if other map addon is loaded
    if Cartographer then return end
    if METAMAP_TITLE then return end

    UIPanelWindows["WorldMapFrame"] = { area = "center" }

    WorldMapFrame:SetScript("OnShow", function()
      -- default events
      UpdateMicroButtons()
      PlaySound("igQuestLogOpen")
      CloseDropDownMenus()
      SetMapToCurrentZone()
      WorldMapFrame_PingPlayerPosition()
      LoadMovable(this)

      -- customize
      this:SetMovable(true)
      this:EnableMouse(true)
      this:EnableKeyboard(false)
      this:EnableMouseWheel(1)
    end)

    WorldMapFrame:SetScript("OnMouseWheel", function()
      if IsShiftKeyDown() then
        c_position.alpha = pfUI.api.clamp(WorldMapFrame:GetAlpha() + arg1/10, 0.1, 1.0)
        WorldMapFrame:SetAlpha(c_position.alpha)
      end

      if IsControlKeyDown() then
        c_position.scale = pfUI.api.clamp(WorldMapFrame:GetScale() + arg1/10, 0.1, 2.0)
        WorldMapFrame:SetScale(c_position.scale)
      end
    end)

    WorldMapFrame:SetScript("OnMouseDown",function()
      WorldMapFrame:StartMoving()
    end)

    WorldMapFrame:SetScript("OnMouseUp",function()
      WorldMapFrame:StopMovingOrSizing()
      SaveMovable(this)
    end)

    WorldMapFrame:ClearAllPoints()
    WorldMapFrame:SetPoint("CENTER", UIParent, "CENTER", 0, 0)
    WorldMapFrame:SetWidth(WorldMapButton:GetWidth() + 15)
    WorldMapFrame:SetHeight(WorldMapButton:GetHeight() + 55)

    WorldMapFrameCloseButton:SetPoint("TOPRIGHT", WorldMapFrame, "TOPRIGHT", 0, 0)
    CreateBackdrop(WorldMapFrame)

    WorldMapFrame:SetAlpha(c_position.alpha)
    WorldMapFrame:SetScale(c_position.scale)

    BlackoutWorld:Hide()

    for i,v in ipairs({WorldMapFrame:GetRegions()}) do
      if v.SetTexture then
        v:SetTexture("")
      end

      if v.SetText then
        v:SetText("")
      end
    end

    -- coordinates
    WorldMapButton.coords = CreateFrame("Frame", "pfWorldMapButtonCoords", WorldMapButton)
    WorldMapButton.coords.text = WorldMapButton.coords:CreateFontString(nil, "OVERLAY")
    WorldMapButton.coords.text:SetPoint("BOTTOMRIGHT", WorldMapButton, "BOTTOMRIGHT", -10, 10)
    WorldMapButton.coords.text:SetFont(pfUI.font_default, C.global.font_size, "OUTLINE")
    WorldMapButton.coords.text:SetTextColor(1, 1, 1)
    WorldMapButton.coords.text:SetJustifyH("RIGHT")

    WorldMapButton.coords:SetScript("OnUpdate", function()
      local width  = WorldMapButton:GetWidth()
      local height = WorldMapButton:GetHeight()
      local mx, my = WorldMapButton:GetCenter()
      local scale  = WorldMapButton:GetEffectiveScale()
      local x, y   = GetCursorPosition()

      mx = (( x / scale ) - ( mx - width / 2)) / width * 100
      my = (( my + height / 2 ) - ( y / scale )) / height * 100

      if MouseIsOver(WorldMapButton) then
        WorldMapButton.coords.text:SetText(string.format('%.1f / %.1f', mx, my))
      else
        WorldMapButton.coords.text:SetText("")
      end
    end)
  end)
end)