This is a great tool, if you want for example set up WeakAuras that rely on “hidden” quest status, or also for creating custom entries in the WQAchievements addon.

All The Things provide the same information (if you enable the option), but this one is of course 100 times more lightweight and has a nice standalone log window.

Might also serve as a quick’n’dirty log that shows you what you have done in your session ;)

Thanks!

PS: An option to have a persistent (cross-session) log would be perfect :)

Edit: Just noticed that the log is already persistent — if I open the window :) Perfect!

I got a working version for 9.0

In the TOC you can just bump the version to 90001 and in addon.lua just change the code to...

local myname, ns = ...

local icon = LibStub("LibDBIcon-1.0", true)

local db, dbpc
local quests = {}
local new_quests = {}
local quests_completed = {}
ns.quests_completed = quests_completed

local f = CreateFrame('Frame')
f:SetScript("OnEvent", function(self, event, ...)
    ns[event](ns, event, ...)
end)
f:RegisterEvent("ADDON_LOADED")
f:Hide()

function ns:ADDON_LOADED(event, name)
    if name ~= myname then return end

    _G[myname.."DB"] = setmetatable(_G[myname.."DB"] or {}, {
        __index = {
            minimap = false,
        },
    })
    _G[myname.."DBPC"] = setmetatable(_G[myname.."DBPC"] or {}, {
        __index = {
            -- nothing right now
        },
    })
    db = _G[myname.."DB"]
    dbpc = _G[myname.."DBPC"]
    if not dbpc.log then
        dbpc.log = {}
    end

    ns.db = db
    ns.dbpc = dbpc

    if icon then
        icon:Register(myname, ns.dataobject, db)
    end

    f:UnregisterEvent("ADDON_LOADED")

    if IsLoggedIn() then self:PLAYER_LOGIN() else f:RegisterEvent("PLAYER_LOGIN") end
end
function ns:PLAYER_LOGIN()
    f:RegisterEvent("QUEST_LOG_UPDATE")
    f:RegisterEvent("ENCOUNTER_LOOT_RECEIVED")
    f:UnregisterEvent("PLAYER_LOGIN")
    for mid, questid in pairs(C_QuestLog.GetAllCompletedQuestIDs()) do
		quests[questid] = "true";
	end
end
function ns:QUEST_LOG_UPDATE()
    f:Show()
end
ns.ENCOUNTER_LOOT_RECEIVED = ns.QUEST_LOG_UPDATE

do
    local time_since = 0
    f:SetScript("OnUpdate", function(self, elapsed)
        time_since = time_since + elapsed
        if time_since < 0.3 then
            return
        end
        ns:CheckQuests()
        time_since = 0
        f:Hide()
    end)
end

local quest_names = {}
ns.quest_names = quest_names
do
    local tooltip
    local function tooltip_line(link, line)
        if not tooltip then
            tooltip = CreateFrame("GameTooltip", myname.."_Tooltip", nil, "GameTooltipTemplate")
            tooltip:SetOwner(UIParent, "ANCHOR_NONE")
        end
        tooltip:ClearLines()
        tooltip:SetHyperlink(link)
        
        if tooltip:NumLines() < line then return false end
        return _G[myname.."_TooltipTextLeft"..line]:GetText()
    end
    setmetatable(ns.quest_names, {__index = function(self, key)
        local link = (type(key) == 'string') and key or ('quest:'..key)
        local uid = string.match(link, '%d+')
        local name = tooltip_line(link, 1)
        if name then
            self[uid] = name
            return name
        end
        return false
    end,})
end

function ns:CheckQuests()
    if not quests then
        return
    end
    local mapdata, x, y
	
	for mid, questid in pairs(C_QuestLog.GetAllCompletedQuestIDs()) do
		new_quests[questid] = "true";
	end
	
    --new_quests = C_QuestLog.GetAllCompletedQuestIDs()
    for questid in pairs(new_quests) do
        if not quests[questid] then
            if not mapdata then
                local mapID = C_Map.GetBestMapForUnit('player')
                if mapID then
                    mapdata = C_Map.GetMapInfo(mapID)
                    local position = C_Map.GetPlayerMapPosition(mapdata.mapID, 'player')
                    if position then
                        x, y = position:GetXY()
                    end
                end
            end
            local questName = quest_names[questid] -- prime it
            local quest = {
                id = questid,
                time = time(),
                map = mapdata and mapdata.mapID or 0,
                x = x or 0,
                y = y or 0,
            }
            table.insert(quests_completed, quest)
            table.insert(dbpc.log, quest)
        end
    end
    -- Swap `quests` and `new_quests` so we can hold on to the old `quests` and reuse the table on the next scan
    local temp = new_quests
    new_quests = quests
    quests = temp
end

local ldb = LibStub:GetLibrary("LibDataBroker-1.1")
local dataobject = ldb:GetDataObjectByName("QuestsChanged") or ldb:NewDataObject("QuestsChanged", {
    type = "data source",
    label = "QuestsChanged",
    icon = [[Interface\Icons\Ability_Spy]],
})

dataobject.OnClick = function(frame, button)
    if button == "RightButton" then
        -- clear the list!
        table.wipe(quests_completed)
    else
        ns:ShowLog()
    end
end

dataobject.OnTooltipShow = function(tooltip)
    ns:CheckQuests() -- in case
    tooltip:AddLine("QuestsChanged")
    for _, quest in ipairs(ns.quests_completed) do
        local map, level
        if type(quest.map) == 'string' then
            -- pre-8.0 quest logging has mapFiles, just show them
            map = quest.map
            level = quest.level
        else
            map, level = ns.MapNameFromID(quest.map)
        end
        tooltip:AddDoubleLine(
            ("%d: %s"):format(quest.id, quest_names[quest.id] or UNKNOWN),
            ("%s (%s) %.2f, %.2f"):format(quest.map, map .. (level and (' / ' .. level) or ''), quest.x * 100, quest.y * 100)
        )
    end

    local x, y
    local mapID = C_Map.GetBestMapForUnit('player')
    if mapID then
        local position = C_Map.GetPlayerMapPosition(mapID, 'player')
        if position then
            x, y = position:GetXY()
        end
    end
    local mapname, subname = ns.MapNameFromID(mapID)

    -- TODO: check microdungeons here

    tooltip:AddDoubleLine("Location", ("%s (%s) %.2f, %.2f"):format(mapID or UNKNOWN, mapname .. (subname and (' / ' .. subname) or ''), (x or 0) * 100, (y or 0) * 100), 1, 0, 1, 1, 0, 1)
    tooltip:AddLine("Left-click to show your quest history", 0, 1, 1)
    tooltip:AddLine("Right-click to clear the list", 0, 1, 1)
end

ns.dataobject = dataobject

-- slash

_G["SLASH_".. myname:upper().."1"] = "/questschanged"
SlashCmdList[myname:upper()] = function(msg)
    msg = msg:trim()
    if msg == "log" or msg == "" then
        ns:ShowLog()
    elseif msg == "icon" then
        if not icon then return end
        db.hide = not db.hide
        if db.hide then
            icon:Hide(myname)
        else
            icon:Show(myname)
        end
    end
end

-- utility

function ns.MapNameFromID(mapID)
    if not mapID then
        return UNKNOWN
    end
    local mapdata = C_Map.GetMapInfo(mapID)
    local groupID = C_Map.GetMapGroupID(mapID)
    if group then
        local groupdata = C_Map.GetMapGroupMembersInfo(groupID)
        for _, subzonedata in ipairs(groupdata) do
            if subzonedata.mapID == mapID then
                return mapdata.name, subzonedata.name
            end
        end
    end
    return mapdata.name
end

In reply to elidion:

In reply to elidion:

Very good, thank you!

Could you recommend a broker viewer that works in 9.x?

In reply to Vox013:

 Honestly I haven't used many external addons in 9.0, just some of them like this one is required for my own addon so I am forced to make it work so I can continue work on mine. I use this to discover hidden quest IDs for things like looting treasures or killing rares.

In reply to elidion:

 Yes, this is very useful for me too. But it would be way better if the addon just prints out the quest ID in the chat upon completion, rather than opening up a window manually every time to check if there's any new quest completed. Is this possible to do in 9.x ?

In reply to Kemayo:

 btw I tried the version you have on the shadowlands branch and it bombs right of f the bat

Message: Interface\AddOns\QuestsChanged\addon.lua:3: attempt to call global 'LibStub' (a nil value)
Time: Thu Sep 17 16:00:30 2020
Count: 1
Stack: Interface\AddOns\QuestsChanged\addon.lua:3: attempt to call global 'LibStub' (a nil value)
[string "@Interface\AddOns\QuestsChanged\addon.lua"]:3: in main chunk

Locals: myname = "QuestsChanged"
ns = <table> {
}
(*temporary) = nil
(*temporary) = "LibDBIcon-1.0"
(*temporary) = true
(*temporary) = "attempt to call global 'LibStub' (a nil value)"

In reply to Samnthar:

 Not the author but I got it working in PTR/Beta, posted the addon.lua code on my post above.

Outdated at 8.3.0

Just discovered this addon, but it seems the log window formatting is broken now.  The previous/next buttons and page indicators cover up some of the log content.  For example, I just killed one rare, and its log entry is completely obscured by the buttons.

EDIT:  Hm, strangely, after I reloadui, the first time I bring up the log window, it's formatted well.  But then if I close and re-open it, it goes back to bad formatting with the page info/buttons covering up some of the log.

type /questschanged to toggle a minimap icon.

Checked the code, this should be /questschanged icon

 Could you make the result copyable? I worry I mistype the ID when I report something.

I was thinking that either the popup window could be changed or an ALT+Click on the broker/icon to copy the last 5 results or something.

When player is in instances, C_Map.GetPlayerMapPosition(mapID, 'player') returns nil.

That makes [local x, y = C_Map.GetPlayerMapPosition(mapID, 'player'):GetXY()] to cause Lua error.

I had to check if the value of playe's position returns numerical coords or not before doing GetXY().

Pretty good! Thanks!!

Does this keep a log?  I accidentally right clicked and now I can't provide you with the good information.

I write many of the guides for WoWPro and I must say this is WONDERFUL.  I had my macro bar full on beta of /run print(IsQuestFlaggedCompleted(xxxxx)) for all the treasures in a zone so I could identify which one was where. I just found a new treasure yesterday and I was not relishing duplicating those macros on live. (I can't just copy from beta as I had to delete some to make room for others when I was done with the zone.) This will go with ID Tip as my must have addons for guide writing.