Bartender4
Bartender4 is a full ActionBar replacement mod. It provides you with all the features needed to fully customization most aspects of your action and related bars.
Bartender4 in Midnight: As of version 4.16.5, Midnight support is in preview - it'll be worked on until release, of course.
Major Changes since Dragonflight / 10.0
- Hold-to-cast is not currently available for addons
- Action Bars have been slightly re-arranged in Bartender4 for Dragonflight and beyond
- Bar 1-8 now reflect Blizzard Bars 1-8 (these are old 1, 3-6, and the 3 new bars)
- The old bars 7-10 are now called "Class Bar 1-4" (Shapeshifting, Stances, etc)
- The old bar 2 is now called Bonus Action Bar
Features
- Support for all Action Bars and all related bars
- 10 Action Bars (13 in Dragonflight & War Within!)
- Stance Bar
- Pet Bar
- Bag Bar
- Micro Menu
- XP/Reputation Bar
- All Bars are fully customizable (Scale, Alpha, Fade-Out settings, ...)
- Very flexible and customizable Show/Hide driver based on Macro Conditions
- Additional Layout and Paging settings for Action Bars
- Page all bars based on Stance or Modifier
- Possess Bar support
- Custom State driver support with Macro Conditions
- Options to hide specific elements of the buttons (Macro Text, HotKey, more could be added on demand)
- StickyFrames support
- Masque/ButtonFacade support!
- Easy Hotkey Binding using KeyBound
- Options to control the hiding of the default blizzard artwork (you might still want that to be displayed..)
FAQ
Q: I cannot move/drag my skills on my bars?
A: Hold Shift to move skills safely. You can also unlock your bars in the Bartender4 options, but using Shift is safer and recommended.
Q: How do i access the Configuration?
A: You can open the configuration with the Slash Commands (/bt or /bartender) or through the Bartender4 LDB plugin.
Q: Where are my keybindings? And how do i bind new keys?
A: Bartender4 buttons should automatically inherit keybindings from the Blizzard bars. For new keybindings, you can use KeyBound to re-bind your keys. You can access KeyBound by its slash command (/kb) or through the button in the BT4 config. Hover a button, press key → voila!
Q: Can I skin the buttons beyond the built-in options?
A: Bartender4 allows skinning through Masque! After installing both Bartender4 and Masque, you can customize the BT4 appearance in the Masque options.
Q: How do i disable the snapping of the bars?
A: Currently, you can temporarily override the snapping by holding down the Shift Key while moving your bars, or uncheck the option in the popup when your bars are unlocked.
Feature Requests/Bug Tracker
Please submit Bugs and/or Feature Requests using the Ticket System on the WoWAce Project page or in the Bartender4 Forum Thread. Please provide as many information as possible, including your client language, the exact version you are running, how to reproduce any errors, and a stack trace, if applicable.
Links
WoWAce Project: Bartender4 on WoWAce
Custom State Header: Info page on WoWAce
Comments
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nevcairiel Owner
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Posted Aug 12, 2026Bartender4
4.17.9
Still getting machine gun LUA errors, even on a fresh install. This started after I added one button rotation to the bar.
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Posted Aug 12, 2026@somali_lemonade Same here... still not working with the one button rotation.
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Posted Aug 11, 2026Try this patch for the UpdateAssistedCombatRotationFrame issue
```
--- a/LibActionButton-1.0.lua
+++ b/LibActionButton-1.0.lua
@@ -1743,6 +1743,17 @@
-----------------------------------------------------------
--- button management
+-- Blizzard's ActionBarButtonAssistedCombatRotationFrameMixin:OnUpdate (12.1.0+) now calls
+-- actionButton:OnActionBarSlotChanged() directly instead of relying on the ACTIONBAR_SLOT_CHANGED
+-- event (which it now suppresses).
+function Generic:OnActionBarSlotChanged()
+ if self._state_type == "action" then
+ ClearNewActionHighlight(self._state_action, true, false)
+ end
+ Update(self)
+end
+
function Generic:UpdateAction(force)
local action_type, action = self:GetAction()
if force or action_type ~= self._state_type or action ~= self._state_action then
```
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Posted Aug 11, 2026This patch has really messed with the UI. Best to disable all addons until the creators have had a few days or even weeks.
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Posted Aug 11, 2026If your getting errors like this: (And i mean massive spam errors)
1530x ...ceBlizzard_ActionBar/Shared/ActionButton.lua:1887: attempt to call a nil value
[Blizzard_ActionBar/Shared/ActionButton.lua]:1887: in function <...ceBlizzard_ActionBar/Shared/ActionButton.lua:1880>
Locals:
self=Frame <LibActionButton-1.0.lua:2351>{
ActiveFrame=Frame <ActionButtonComponentTemplate.xml:19>
updateTimeLeft=-0.067000
InactiveTexture=Texture <ActionButtonComponentTemplate.xml:11>
}
elapsed=0.067000
actionButton=BT4Button1 <LibActionButton-1.0.lua:225>{
popupDirection="UP"
NewActionTexture=Texture <ActionButtonTemplate.xml:56>
BorderShadow=Texture <Flyout.xml:18>
TargetReticleAnimFrame=Frame <ActionButtonComponentTemplate.xml:332>....................
ETC.. (its a nasty long error)
Replace this function: in file: LibActionButton-1.0.lua
function UpdateAssistedCombatRotationFrame(self)
if not (C_ActionBar and C_ActionBar.IsAssistedCombatAction) then return end
local show = self._state_type == "action" and C_ActionBar.IsAssistedCombatAction(self._state_action)
local assistedCombatRotationFrame = self.AssistedCombatRotationFrame
-- create frame if needed
if show and not assistedCombatRotationFrame then
assistedCombatRotationFrame = CreateFrame("Frame", nil, self, "ActionBarButtonAssistedCombatRotationTemplate")
self.AssistedCombatRotationFrame = assistedCombatRotationFrame
end
if assistedCombatRotationFrame then
assistedCombatRotationFrame:UpdateState()
end
end
with:
function UpdateAssistedCombatRotationFrame(self)
-- Disabled for LibActionButton buttons.
-- Blizzard's ActionBarButtonAssistedCombatRotationTemplate assumes
-- a native Blizzard ActionBarActionButtonMixin parent and can error
-- when attached to LibActionButton/Bartender buttons.
return
end
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Posted Aug 11, 2026yes can confirm the machine gun errors do stop if you uncheck all the fade boxes ON EVERY BAR under visablity
update.. was fine in town but after some combat came back
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Posted Aug 11, 2026923978x Bartender4/Bar.lua:417: attempt to call a nil value
[Bartender4/Bar.lua]:417: in function <Bartender4/Bar.lua:415>
[Bartender4/Bar.lua]:431: in function 'ControlFadeOut'
[Bartender4/Bar.lua]:133: in function <Bartender4/Bar.lua:129>
[C]: ?
[C]: in function 'SetAttribute'
[Blizzard_RestrictedAddOnEnvironment/RestrictedFrames.lua]:534: in function 'SetAttribute'
[ if not newstate then return end
if newstate == "show" then
self:Show()
self:SetAttribute("fade", false)
elseif strsub(newstate, 1, 4) == "fade" then
self:Show()
self:SetAttribute("fade", (newstate == "fade") and true or strsub(newstate, 6))
elseif newstate == "hide" then
self:Hide()
end
]:7: in function <[string " if not newstate then return end..."]:1>
[tail call]: ?
[C]: ?
[Blizzard_RestrictedAddOnEnvironment/RestrictedExecution.lua]:481: in function <...d_RestrictedAddOnEnvironment/RestrictedExecution.lua:444>
[tail call]: ?
[Blizzard_RestrictedAddOnEnvironment/SecureHandlers.lua]:112: in function <...izzard_RestrictedAddOnEnvironment/SecureHandlers.lua:107>
...[Bartender4/ButtonBar.lua]:47: in function 'ApplyConfig'
[Bartender4/StateBar.lua]:65: in function 'ApplyConfig'
[Bartender4/ActionBar.lua]:52: in function 'ApplyConfig'
[Bartender4/ActionBars.lua]:363: in function 'Create'
[Bartender4/ActionBars.lua]:150: in function <Bartender4/ActionBars.lua:142>
[C]: ?
[!WilduTools/libs/AceAddon-3.0/AceAddon-3.0.lua]:66: in function <...ddOns/!WilduTools/libs/AceAddon-3.0/AceAddon-3.0.lua:61>
[!WilduTools/libs/AceAddon-3.0/AceAddon-3.0.lua]:523: in function 'EnableAddon'
[!WilduTools/libs/AceAddon-3.0/AceAddon-3.0.lua]:536: in function 'EnableAddon'
[!WilduTools/libs/AceAddon-3.0/AceAddon-3.0.lua]:626: in function <...ddOns/!WilduTools/libs/AceAddon-3.0/AceAddon-3.0.lua:611>
Locals:
bar=BT4Bar3 <Bar.lua:152>{
id="3"
hidedriver=<table>
MasqueGroup=<table>
module=<table>
config=<table>
name="Bar 4"
bindingmapping="MULTIACTIONBAR3BUTTON%d"
elapsed=0
overlay=BT4Bar3Overlay <Bar.lua:165>
}
LABSpellFlyout=LABFlyoutHandlerFrame <LibActionButton-1.0.lua:904>{
Background=Frame <LibActionButton-1.0.lua:905>
}
(*temporary)=nil
(*temporary)=BT4Bar3Overlay <Bar.lua:165>{
Text=FontString <Bar.lua:182>
Center=Texture <NineSlice.lua:52>
RightEdge=Texture <NineSlice.lua:52>
BottomEdge=Texture <NineSlice.lua:52>
TopRightCorner=Texture <NineSlice.lua:52>
BottomRightCorner=Texture <NineSlice.lua:52>
BottomLeftCorner=Texture <NineSlice.lua:52>
TopEdge=Texture <NineSlice.lua:52>
TopLeftCorner=Texture <NineSlice.lua:52>
backdropInfo=<table>
LeftEdge=Texture <NineSlice.lua:52>
bar=BT4Bar3 <Bar.lua:152>
}
(*temporary)="attempt to call a nil value"
LAB=<table>{
callbacks=<table>
activeButtons=<table>
ACTION_HIGHLIGHT_MARKS=<table>
eventFrame=Frame <LibActionButton-1.0.lua:59>
nonActionButtons=<table>
flyoutHandler=LABFlyoutHandlerFrame <LibActionButton-1.0.lua:904>
actionButtons=<table>
actionButtonsNonUI=<table>
NumChargeCooldowns=0
buttonRegistry=<table>
FlyoutInfo=<table>
FlyoutButtons=<table>
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Posted Aug 11, 2026@thetwistedbullet whats this?
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Posted Aug 11, 2026Replace lines 417 through 419 of Bar.lua with this (if you get the fade out error, not the single button assist errror)
if bar.overlay:IsMouseOver()
or (SpellFlyout and SpellFlyout:IsShown() and SpellFlyout:GetParent() and SpellFlyout:GetParent():GetParent() == bar and SpellFlyout:IsMouseOver())
or (LABSpellFlyout and LABSpellFlyout:IsShown() and LABSpellFlyout:GetParent() and LABSpellFlyout:GetParent():GetParent() == bar and LABSpellFlyout:IsMouseOver()) then
And it'll fix the issue.
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Posted Aug 11, 2026@MabusGaming Your fix is working for me! ty! (your fix is the only thing that worked for me. Removing the single-button-assist and restarting did not fix the problem for me.)
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Posted Aug 11, 2026@MabusGaming STILL GETTING THE SAME ERROR
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Posted Aug 11, 2026@tsconver The other error is for the single button assist, sorry should have clarified this was for the fade out error.
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Posted Aug 11, 2026@MabusGaming this did not work for me <sigh>, but removing the single button assist and then reloading the UI worked. hopefully this gets resolved soon. the SBA can be helpful in learning new classes
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Posted Aug 11, 2026@MabusGaming Won't fix the 2nd error with the single-button-assist, you'd have to update LibActionButton-1.0
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Posted Aug 11, 2026Bartender is currently not working for me after the new patch - I'm getting a Lua error with an awful noise (as someone described, like a machine gun) as it counts. I can't close the error without disabling the add on completely.
Getting the message : "Interface/AddOns/Blizzard_ActionBar/Shared/ActionButton.lua:1887: attempt to call a nil value"
Does anyone know a way around this without disabling? - Hopefully the Bartender team can address this issue asap <3
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Posted Aug 11, 2026@kiralee_x As suggested by another user, I just removed the single-button-assist button from one of my bars, and it resolved the issue..
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Posted Aug 11, 2026@kiralee_x Can confirm, the Single Button assistant makes the error appear. Fortunately, I don't actually use it on my main, but I had it on a bar
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Posted Aug 11, 2026@Eternityshard removing SBA fixed the issue
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Posted Aug 11, 2026fade not working hoping its an easy fix cause its such a great feature
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Posted Aug 11, 2026If your chat is being spammed about UI errors, turn off any fading you have on your bars, at least until it is fix.