How to set/access IDs for UIDropDownMenu?

lieandswell · 08-27-08, 10:54 AM

I have a number of frames generated off of a common template, and they all have UIDropDownMenus accessible by right click. I'm having trouble getting them to remember/access the ID of the frame that was clicked so that I can adjust the appropriate saved variables.

I've tried all sorts of this:GetID(), this:GetParent():GetID(), etc. in the UIDropDownMenu_Initialize functions. I get back all sorts of strange numbers that change depending on the level of the menu. I don't understand what's going on. Any advice on how to go about doing this?

Duugu · 08-27-08, 11:26 AM

Well ... I'll show you my code. Maybe could re-use it. If you have any questions please ask.
It's a modified version of the blizzard dropdown code to handle more than one dropdown frame with the same OnLoad/OnClick function.

Let's say there's a table to load into the Dropdown and a variable to save the selected value:

Code:

local dUF.DebuffTypesNumbers = 	{
					[1] = "none", 
					[2] = "Curse", 
					[3] = "Disease", 
					[4] = "Magic", 
					[5] = "Poison", 
					[6] = "HealDebuff", 
					[7] = "Special", 
					[8] = "Unknown", 
					}	
local SavedValue = 1 -- this value is saved via savedvariables

My code to set up the dropdown is:

Code:

tframe = <a reference to a dropdown frame>
tSource = dUF.DebuffTypesNumbers
tvalue = <the numeric index of DebuffTypesNumbers entry to show>
dUF:OptionsOutputDropDown_OnLoad(tframe, tSource, tvalue)

And the dropdown handling code is:

Code:

---------------------------------------------------------------------------------------------------------------------------------------------------------------
-- 
----------------------------------------------------------------------------------------------------------------------------------------------------------------
function dUF:OptionsOutputDropDown_OnLoad(frame, source, value)
	local tname = frame:GetName()
	UIDropDownMenu_Initialize(frame, function() 
		local entry = { func = function() dUF:OptionsOutputDropDown_OnClick(tname) end }
		for i = 1, table.getn(source), 1 do  
				entry.text = source[i]
				entry.value = value;
				if (UIDropDownMenu_GetSelectedValue(this) == entry.value) then
						entry.checked = true
				else
						entry.checked = nil
				end
				UIDropDownMenu_AddButton(entry)
		end	
	end);
	UIDropDownMenu_SetSelectedValue(frame, source[value], 1);
	UIDropDownMenu_SetSelectedID(frame, value);
	if dUF.tocVersion >= 30000 then
		UIDropDownMenu_SetText(frame, source[value])
	else
		UIDropDownMenu_SetText(source[value], frame)
	end
end
---------------------------------------------------------------------------------------------------------------------------------------------------------------
-- 
----------------------------------------------------------------------------------------------------------------------------------------------------------------
function dUF:OptionsOutputDropDown_OnClick(tname)
	UIDropDownMenu_SetSelectedID(getglobal(tname), this:GetID())
	SavedValue = UIDropDownMenu_GetSelectedID(getglobal(tname))
end

lieandswell · 08-27-08, 02:08 PM

Well, after going through a bunch more Blizzard code, I got it to work using a check for UIDROPDOWNMENU_OPEN_MENU:

Code:

function MyAddOn_DropDown_Initialize()
    local dropdown;
    if ( UIDROPDOWNMENU_OPEN_MENU ) then
        dropdown = getglobal(UIDROPDOWNMENU_OPEN_MENU);
    else
        dropdown = this; 
    end
    local frameID = dropdown:GetParent():GetID();

    ... more code here ...

end

That retrieves the correct frameID.