Chicchai and docked chat frames

[Wimpface]

I was recently told one of my favorite AddOns, Chicchai, still worked. I downloaded and installed it, and it does! But, not without bugs as is expected of a 4 year old AddOn.

My problem is with docked chat frames, as the title says. The AddOn works perfectly fine if you undock every chat window, but the second you dock any you run into an error and the addon stops working correctly.

This is the error

Message: Interface\AddOns\Chicchai\core.lua:182: attempt to index local 'self' (a nil value)
Time: 09/07/14 03:40:40
Count: 1
Stack: Interface\AddOns\Chicchai\core.lua:182: in function `updateHeight'
Interface\AddOns\Chicchai\core.lua:224: in main chunk

Here's the code

--[[            Chicchai
]]--    by Lolzen & Cargor (EU-Nozdormu)
 
-- Configuration
local maxHeight = 123               -- How high the chat frames are when maximized
local animTime = 0.3                -- How lang the animation takes (in seconds)
local minimizeTime = 10             -- Minimize after X seconds
local minimizedLines = 1            -- Number of chat messages to show in minimized state
 
local MaximizeOnEnter = true        -- Maximize when entering chat frame, minimize when leaving
local WaitAfterEnter = 0            -- Wait X seconds after entering before maximizing
local WaitAfterLeave = 0            -- Wait X seconds after leaving before minimizing
 
local LockInCombat = nil            -- Do not maximize in combat
 
local MaximizeCombatLog = true      -- When the combat log is selected, it will be maximized
 
-- Modify this to maximize only on special channels
-- comment/remove it to react on all channels
-- you still need the "channel"-event on your chat frame!
local channelNumbers = {
    [1] = true,
    [2] = true,
    [3]  = true,
}
 
local ChatFrameConfig = {   -- Events which maximize the chat for the different windows
    ["ChatFrame1"] = {
        "say", "emote", "text_emote",
        "party", "party_leader", "party_guide",
        "whisper",
        "guild", "officer",
        "battleground", "battleground_leader",
        "raid", "raid_leader", "raid_warning",
        "instance_chat", "instance_chat_leader",
    
        "bn_whisper",
        "bn_conversation",
        "bn_broadcast",
    },
    ["ChatFrame2"] = true, -- "true" just makes this frame available for minimizing and registers it with Chicchai
    ["ChatFrame3"] = true, -- "true" just makes this frame available for minimizing and registers it with Chicchai
    ["ChatFrame4"] = true, -- "true" just makes this frame available for minimizing and registers it with Chicchai
}
 
--[[
    REFERENCE LIST
    These are the available chat events for ChatFrameConfig
        say, yell, emote, text_emote,
        party, party_leader, party_guide,
        whisper, whisper_inform, afk, dnd, ignored,
        guild, officer,
        channel, channel_join, channel_leave, channel_list, channel_notice, channel_notice_user,
        battleground, battleground_leader,
        raid, raid_leader, raid_warning,
 
        bn_whisper, bn_whisper_inform,
        bn_conversation, bn_conversation_notice, bn_conversation_list,
        bn_alert,
        bn_broadcast, bn_broadcast_inform,
        bn_inline_toast_alert, bn_inline_toast_broadcast, bn_inline_toast_broadcast_inform, bn_inline_toast_conversation,
 
        system, achievement, guild_achievement,
        bg_system_neutral, bg_system_alliance, bg_system_horde,
        monster_say, monster_party, monster_yell, monster_whisper, monster_emote,
        raid_boss_whisper, raid_boss_emote,
        skill, loot, money, opening, tradeskills, pet_info, combat_misc_info, combat_xp_gain, combat_honor_gain, combat_faction_change,
]]
-- Configuration End
-- Do not change anything under this line except you know what you're doing (:
 
 
 
local select = select
local UP, DOWN = 1, -1
 
local function getMinHeight(self)
    local minHeight = 0
    for i=1, minimizedLines do
        local line = select(9+i, self:GetRegions())
        if(line) then
            minHeight = minHeight + line:GetHeight() + 2.5
        end
    end
    if(minHeight == 0) then
        minHeight = select(2, self:GetFont()) + 2.5
    end
    return minHeight
end
 
local function Update(self, elapsed)
    if(self.WaitTime) then
        self.WaitTime = self.WaitTime - elapsed
        if(self.WaitTime > 0) then return end
        self.WaitTime = nil
        if(self.Frozen) then return self:Hide() end
    end
 
    self.State = nil
 
    self.TimeRunning = self.TimeRunning + elapsed
    local animPercent = min(self.TimeRunning/animTime, 1)
 
    local heightPercent = self.Animate == DOWN and 1-animPercent or animPercent
 
    local minHeight = getMinHeight(self.Frame)
    self.Frame:SetHeight(minHeight + (maxHeight-minHeight) * heightPercent)
 
    if(animPercent >= 1) then
        self.State = self.Animate
        self.Animate = nil
        self.TimeRunning = nil
        self:Hide()
        if(self.finishedFunc) then self:finishedFunc() end
    end
end
 
local function getChicchai(self)
    if(self:GetObjectType() == "Frame") then self = self.Frame  end
    if(self.isDocked) then self = GENERAL_CHAT_DOCK.DOCKED_CHAT_FRAMES[1] end
    return self.Chicchai
end
 
local function SetFrozen(self, isFrozen)
    getChicchai(self).Frozen = isFrozen
end
 
local function Animate(self, dir, waitTime, finishedFunc)
    local self = getChicchai(self)
    if(self.Frozen) then return end
    if(self.Animate == dir or self.State == dir and not self.Animate) then return end
 
    if(self.Animate == -dir) then
        self.TimeRunning = animTime - self.TimeRunning
    else
        self.TimeRunning = 0
    end
    self.WaitTime = waitTime
    self.Animate = dir
    self.finishedFunc = finishedFunc
    self:Show()
end
 
local function Maximize(self) Animate(self, UP) end
local function Minimize(self) Animate(self, DOWN) end
 
local function MinimizeAfterWait(self)
    Animate(self, DOWN, minimizeTime)
end
 
local CheckEnterLeave
if(MaximizeOnEnter) then
    CheckEnterLeave = function(self)
        self = getChicchai(self)
        if(MouseIsOver(self.Frame) and not self.wasOver) then
            self.wasOver = true
            Animate(self, UP, WaitAfterEnter)
        elseif(self.wasOver and not MouseIsOver(self.Frame)) then
            self.wasOver = nil
            Animate(self, DOWN, WaitAfterLeave)
        end
    end
end
 
if(MaximizeCombatLog) then
    hooksecurefunc("FCF_Tab_OnClick", function(self)
        local frame = getChicchai(ChatFrame2)
        if(not frame) then return end
 
        if(self == ChatFrame2Tab) then
            Animate(frame, UP)
            SetFrozen(frame, true)
        elseif(frame.Frozen) then
            SetFrozen(frame, nil)
            Animate(frame, DOWN)
        end
    end)
end
 
local function updateHeight(self)
    local self = getChicchai(self)
    if(self.State ~= DOWN) then return end
    self.Frame:ScrollToBottom()
    self.Frame:SetHeight(getMinHeight(self.Frame))
end
 
local function chatEvent(self)
    if(event == "CHAT_MSG_CHANNEL" and channelNumbers and not channelNumbers[arg8]) then return end
 
    if(not LockInCombat or not UnitAffectingCombat("player")) then
        Animate(self, UP, nil, MinimizeAfterWait)
    end
end
 
for chatname, options in pairs(ChatFrameConfig) do
    local chatframe = _G[chatname]
    local chicchai = CreateFrame"Frame"
    if(MaximizeOnEnter) then
        local updater = CreateFrame("Frame", nil, chatframe)
        updater:SetScript("OnUpdate", CheckEnterLeave)
        updater.Frame = chatframe
    end
    chicchai.Frame = chatframe
    chatframe.Chicchai = chicchai
    if(type(options) == "table") then
        for _, event in pairs(options) do
            if(not event:match("[A-Z]")) then
                event = "CHAT_MSG_"..event:upper()
            end
            chicchai:RegisterEvent(event)
        end
    end
    ChatFrameConfig[chatname] = chicchai
    
    chatframe.Maximize = Maximize
    chatframe.Minimize = Minimize
    chatframe.UpdateHeight = updateHeight
    chatframe.SetFrozen = SetFrozen
 
    chicchai:SetScript("OnUpdate", Update)
    chicchai:SetScript("OnEvent", chatEvent)
    chicchai:Hide()
 
    updateHeight(chatframe)
 
    hooksecurefunc(chatframe, "AddMessage", updateHeight)
end
 
_G.Chicchai = ChatFrameConfig

Does anyone know how to fix this?

EDIT: Found another error! When switching to the docked chat frames, it throws this error. And it throws it a lot.

Message: Interface\AddOns\Chicchai\core.lua:155: attempt to index local 'self' (a nil value)
Time: 09/07/14 03:42:21
Count: 166
Stack: [C]: ?
Interface\AddOns\Chicchai\core.lua:155: in function <Interface\AddOns\Chicchai\core.lua:153>