Home Page - World of Warcraft Programming: A Guide and Reference for Creating WoW Addons

Posted by dustinb on Fri, 20 Mar 2015 05:49:26
Currently hacking together my first addon and I have been trying to get a window i create to :Show() or :Hide() but i can not seem to find a correct event to hook into. I am specifically looking to show this window when the Pet Journal inside of the collections window is active, and :Hide() when the Pet Journal is closed or another tab inside of the Collections window is activated.

I was trying to see how the authors of PetBattleTeams addon did this but I am having difficulties following their code design. I'm sure it's well written, I just get lost when design patterns are thrown in which, I believe they are using.

Anyways here is some spaghetti code I've managed to hack together, which I'll admit does display the empty frame when the Pet Journal is first opened. I feel is a much more elegant solution for this. Also, I noticed the "PETJOURNALLIST_UPDATE" event doesn't get fired after the first time it's opened, and I can't find out which event is called when the Collections window is closed. I've scoured through wowprogramming and wowwiki and wowpedia looking for events for this but am not finding anything promissing. I know it's possible seeing as there is tons of addons that do this exact action.

Thanks for the help in advance!
```
local shown = false
local function OnEvent(self,event,...)
  local name = ...
  name = name or "N/A"
  print("Event: "..event.."     ".."Name: "..name)
  if(IsAddOnLoaded("Blizzard_Collections") or name == "Blizzard_Collections") then
    if not mainFrame then
      mainFrame = CreateMainFrame()
    end
    if shown then
      mainFrame:Hide()
      shown = false
    end
    if not shown then
      mainFrame:Show()
      shown = true
    end
  end
end

local eventFrame = CreateFrame("frame")
eventFrame:SetScript("OnEvent", OnEvent)
eventFrame:RegisterEvent("PET_JOURNAL_LIST_UPDATE")
```