Added a Leave Vehicle Button to the Main Bar on Slot 12

The Possess Bar usually only uses 10 buttons to the limit of 10 buttons on the pet bar, that leaves button 11 and 12 empty. Button 12 (id 132) is now being used for a Leave Vehicle button to be able to leave vehicles properly.

Without a full 12-Button Main Bar, you probably want to Macro /script VehicleExit();

I may add another form of button for this at some point, but not right now.

ActionButton.lua

@@ -1,6 +1,15 @@
 --[[
 	Action Button Template
+	
+	Note:
+	Some IDs produce a special behaviour!
+		- Button ID 132 (Last Button in Possess Bar) Creates a Leave Vehicle Button
 ]]
+
+local specialButtons = {
+	[132] = { script = "/script VehicleExit();", icon = "Interface\\Icons\\Spell_Shadow_SacrificialShield", tooltip = LEAVE_VEHICLE}, -- Vehicle Leave Button
+}
+
 local Button = CreateFrame("CheckButton")
 local Button_MT = {__index = Button}
 
@@ -93,12 +102,15 @@ function Bartender4.Button:Create(id, parent)
 	
 	button:SetAttribute('_childupdate-state', [[
 		self:SetAttribute("state", message)
-		local type = self:GetAttribute("type-" .. message)
-		if type == "special" then
-			-- TODO
+		local action = self:GetAttribute("action-" .. message)
+		local special = self:GetAttribute("special-" .. tostring(action))
+		if special then
+			self:SetAttribute("type", "macro")
+			self:SetAttribute("macrotext", special)
+		else
+			self:SetAttribute("type", "action")
 		end
-		self:SetAttribute("type", type)
-		self:SetAttribute("action", self:GetAttribute("action-" .. message))
+		self:SetAttribute("action", action)
 		
 		-- fix unit on state change
 		if self:GetAttribute("assisttype-"..message) == 1 then
@@ -132,6 +144,10 @@ function Bartender4.Button:Create(id, parent)
 	button.flashing = 0
 	button.flashtime = 0
 	
+	for k,v in pairs(specialButtons) do
+		button:SetAttribute("special-" .. tostring(k), v.script)
+	end
+	
 	button:RegisterButtonEvents()
 	
 	if LBF and parent.LBFGroup then
@@ -225,9 +241,7 @@ function Button:ClearStateAction()
 	for state in pairs(self.stateactions) do
 		self.stateactions = {}
 		for i=0,10 do
-			self:SetAttribute("type-" .. i, nil)
 			self:SetAttribute("action-" .. i, nil)
-			self:SetAttribute("macrotext-" .. i, nil)
 		end
 	end
 end
@@ -247,7 +261,6 @@ end
 function Button:RefreshStateAction(state)
 	local state = tonumber(state or self:GetAttribute("state") or 0)
 	local action = self.stateactions[state]
-	self:SetAttribute("type-"..state, "action")
 	self:SetAttribute("action-"..state, action)
 	
 	self:SetAttribute("assisttype-"..state, nil)
@@ -294,7 +307,7 @@ function Button:Update()
 	self:UpdateIcon()
 	self:UpdateCount()
 	self:UpdateHotkeys()
-	if ( HasAction(action) ) then
+	if HasAction(action) or specialButtons[action] then
 		self:RegisterActionEvents()
 		
 		self:UpdateState()
@@ -336,7 +349,7 @@ function Button:Update()
 end
 
 function Button:UpdateIcon()
-	local texture = GetActionTexture(self.action)
+	local texture = specialButtons[self.action] and specialButtons[self.action].icon or GetActionTexture(self.action)
 	if ( texture ) then
 		self.rangeTimer = -1
 		self.icon:SetTexture(texture)
@@ -468,7 +481,7 @@ function Button:UpdateUsable(force)
 			hotkey:SetVertexColor(1.0, 1.0, 1.0)
 		end
 		
-		if isUsable then
+		if isUsable or specialButtons[self.action] then
 			icon:SetVertexColor(1.0, 1.0, 1.0)
 		elseif notEnoughMana then
 			icon:SetVertexColor(oomcolor.r, oomcolor.g, oomcolor.b)
@@ -511,10 +524,15 @@ function Button:SetTooltip()
 		GameTooltip:SetOwner(self, "ANCHOR_RIGHT")
 	end
 	
-	if ( GameTooltip:SetAction(self.action) ) then
+	if specialButtons[self.action] then
+		GameTooltip:SetText(specialButtons[self.action].tooltip)
 		self.UpdateTooltip = self.SetTooltip
 	else
-		self.UpdateTooltip = nil
+		if ( GameTooltip:SetAction(self.action) ) then
+			self.UpdateTooltip = self.SetTooltip
+		else
+			self.UpdateTooltip = nil
+		end
 	end
 end