Added a quick proof-of-concept LDB menu for quick profession scanning.

diff --git a/ARL.lua b/ARL.lua
index 2f982ed..b5db959 100644
--- a/ARL.lua
+++ b/ARL.lua
@@ -524,6 +524,48 @@ function addon:OnInitialize()
 		       end)
 end

+-------------------------------------------------------------------------------
+-- Secure button and highlight for LibQTip-scanning interface.
+-------------------------------------------------------------------------------
+local highlight = CreateFrame("Frame", nil, UIParent)
+highlight:SetFrameStrata("TOOLTIP")
+highlight:Hide()
+
+highlight._texture = highlight:CreateTexture(nil, "OVERLAY")
+highlight._texture:SetTexture("Interface\\QuestFrame\\UI-QuestTitleHighlight")
+highlight._texture:SetBlendMode("ADD")
+highlight._texture:SetAllPoints(highlight)
+
+local secure_button = CreateFrame("Button", nil, UIParent, "SecureActionButtonTemplate")
+secure_button:SetAttribute("type", "macro")
+secure_button:Hide()
+
+local function secure_button_OnEnter(cell, profession)
+	highlight:SetParent(secure_button)
+	highlight:SetAllPoints(secure_button)
+	highlight:Show()
+
+	secure_button:SetParent(cell)
+	secure_button:SetPoint("TOPLEFT", cell, "TOPLEFT")
+	secure_button:SetPoint("BOTTOMRIGHT", cell, "BOTTOMRIGHT")
+	secure_button:SetAttribute("macrotext", string.format("/cast %s\n/ARL scan", profession))
+	secure_button:Show()
+end
+
+local function secure_button_OnLeave(cell, arg, motion)
+	addon:Debug("secure_button_OnLeave: arg is %s, motion is %s", tostring(arg), tostring(motion))
+	if not motion then
+		return
+	end
+	secure_button:ClearAllPoints()
+	secure_button:SetParent(nil)
+	secure_button:Hide()
+
+	highlight:Hide()
+	highlight:ClearAllPoints()
+	highlight:SetParent(nil)
+end
+
 ---Function run when the addon is enabled.  Registers events and pre-loads certain variables.
 function addon:OnEnable()
 	self:RegisterEvent("TRADE_SKILL_SHOW")	-- Make addon respond to the tradeskill windows being shown
@@ -699,6 +741,55 @@ function addon:OnEnable()
 		for i in pairs(LeatherworkSpec) do AllSpecialtiesTable[i] = true end
 		for i in pairs(TailorSpec) do AllSpecialtiesTable[i] = true end
 	end	-- do
+
+	-- Set up the LDB feed.
+	local LDB = LibStub("LibDataBroker-1.1")
+	local LQT = LibStub("LibQTip-1.0")
+
+	local data_obj = {
+		type	= "data source",
+		label	= MODNAME,
+		text	= " ",
+		icon	= "Interface\\Icons\\INV_Misc_Note_05",
+		OnEnter	= function(display, motion)
+				  local tooltip = LQT:Acquire(addon, 2, "CENTER", "LEFT")
+				  tooltip:EnableMouse(true)
+
+				  tooltip:Clear()
+				  tooltip:SmartAnchorTo(display)
+				  tooltip:SetAutoHideDelay(0.25, display)
+
+				  -- Clear the secure_button and highlight in case they were left over from the previous tooltip
+				  secure_button_OnLeave(nil, nil, true)
+
+				  local line, column = tooltip:AddHeader()
+
+				  tooltip:SetCell(line, 1, _G.TRADE_SKILLS, "CENTER", 2)
+				  tooltip:AddSeparator()
+
+				  for profession in pairs(Player.professions) do
+					  if Player.professions[profession] then
+						  addon:Debug("Found %s", tostring(profession))
+
+						  local icon = select(3, GetSpellInfo(profession))
+
+						  line, column = tooltip:AddLine()
+						  tooltip:SetCell(line, 1, "|T"..icon..":20:20|t", "CENTER", 1)
+						  tooltip:SetCell(line, 2, profession, "LEFT", 1)
+						  tooltip:SetLineScript(line, "OnEnter", secure_button_OnEnter, profession)
+						  tooltip:SetLineScript(line, "OnLeave", secure_button_OnLeave)
+					  end
+				  end
+
+				  tooltip:Show()
+			  end,
+		-- OnLeave is an empty function because some LDB displays refuse to display a plugin that has an OnEnter but no OnLeave.
+		OnLeave	= function()
+			  end,
+		OnClick = function(display, button)
+			  end,
+	}
+	private.data_obj = LDB:NewDataObject(MODNAME, data_obj)
 end

 ---Run when the addon is disabled. Ace3 takes care of unregistering events, etc.