WoWInterface - HookScript mystery??

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HookScript mystery??

Can anybody explain the logic of this behaviour??

I am hooking OnTooltipSetItem and OnTooltipCleared of GameTooltip at two different times: when loading the addon and again with a 1 second delay:

Code:

GameTooltip:HookScript("OnTooltipSetItem", function() print("INIT >> SetItem") end)

GameTooltip:HookScript("OnTooltipCleared", function() print("INIT << Cleared") end)



C_Timer.After(1, function()

  GameTooltip:HookScript("OnTooltipSetItem", function() print("WAIT >> SetItem") end)

  GameTooltip:HookScript("OnTooltipCleared", function() print("WAIT << Cleared") end)

end)

Then, when the mouse cursor enters an item icon, I get the following:

Code:

INIT >> SetItem

INIT << Cleared

WAIT << Cleared

WAIT >> SetItem

INIT << Cleared

WAIT << Cleared

As the tooltip is permantenyl refreshed, this pattern of lines is actually repeated.
But what I don't understand is why the "INIT" prints get executed first for BOTH SetItem and Cleared, and only then the "WAIT" prints get executed but in the opposite order (first Cleared then SetItem)?

I would have expected that INIT and WAIT are always executed one after the other. So what does it matter if I set the hook when loading the addon or with a delay?

May be the first thing when Setitem fires is that it calls a clear for the tooltip?

OK, I think my working example was not the best way to demonstrate it.
Let me put it this way:

Code:

GameTooltip:HookScript("OnTooltipSetItem", function() print(GetTime(), "SetItem") end)

GameTooltip:HookScript("OnTooltipCleared", function() print(GetTime(), "Cleared") end)

leads to:

Code:

1225.517 SetItem

1225.517 Cleared

1225.689 Cleared

1225.689 SetItem

1225.689 Cleared

1225.89 Cleared

1225.89 SetItem

1225.89 Cleared

1226.093 Cleared

1226.093 SetItem

1226.093 Cleared

1226.297 Cleared

1226.297 SetItem

1226.297 Cleared

1226.502 Cleared

1226.502 SetItem

1226.502 Cleared

1226.705 Cleared

1226.705 SetItem

1226.705 Cleared

...

Whereas,

Code:

C_Timer.After(1, function()



  GameTooltip:HookScript("OnTooltipSetItem", function() print(GetTime(), "SetItem") end)

  GameTooltip:HookScript("OnTooltipCleared", function() print(GetTime(), "Cleared") end)



end)

leads to

Code:

1340.647 Cleared

1340.647 SetItem

1340.743 Cleared

1340.743 Cleared

1340.743 SetItem

1340.946 Cleared

1340.946 Cleared

1340.946 SetItem

1341.15 Cleared

1341.15 Cleared

1341.15 SetItem

1341.353 Cleared

1341.353 Cleared

1341.353 SetItem

1341.555 Cleared

1341.555 Cleared

1341.555 SetItem

...

So, this is interesting:

I disabled all other addons, and now I get the same for both cases:

Code:

1551.817 SetItem

1551.85 Cleared

1551.85 SetItem

1552.051 Cleared

1552.051 SetItem

1552.252 Cleared

1552.252 SetItem

1552.453 Cleared

1552.453 SetItem

1552.654 Cleared

1552.654 SetItem

1552.855 Cleared

1552.855 SetItem

1553.057 Cleared

1553.057 SetItem

...

What does this mean?

Quote:

Originally Posted by Rilgamon (Post 337472)

May be the first thing when Setitem fires is that it calls a clear for the tooltip?

OK, turns out you were right. I got another addon hooking OnTooltipSetItem executing ClearLines().
If that goes first, it's like:

Code:

GameTooltip:HookScript("OnTooltipSetItem", function(self)

  self:ClearLines()

  self:AddLine("hi")

end)



GameTooltip:HookScript("OnTooltipSetItem", function() print(GetTime(), "SetItem") end)

GameTooltip:HookScript("OnTooltipCleared", function() print(GetTime(), "Cleared") end)

Leading to

Code:

3679.479 Cleared

3679.479 SetItem

3679.629 Cleared

3679.629 Cleared

3679.629 SetItem

3679.831 Cleared

3679.831 Cleared

3679.831 SetItem

3680.031 Cleared

3680.031 Cleared

3680.031 SetItem

...

If it comes second, it's like:

Code:

GameTooltip:HookScript("OnTooltipSetItem", function() print(GetTime(), "SetItem") end)

GameTooltip:HookScript("OnTooltipCleared", function() print(GetTime(), "Cleared") end)



GameTooltip:HookScript("OnTooltipSetItem", function(self)

  self:ClearLines()

  self:AddLine("hi")

end)

leading to

Code:

4264.37 SetItem

4264.37 Cleared

4264.553 Cleared

4264.553 SetItem

4264.553 Cleared

4264.754 Cleared

4264.754 SetItem

4264.754 Cleared

4264.956 Cleared

4264.956 SetItem

4264.956 Cleared

...

Thanks!