Custom Scripts

[Resike]

I'm not very experience in callbacks, but is it possible to create a custom scripts for a frame which will get triggered just like the "OnShow"/"OnHide" ones but i manage what will trigger them?

[Malakahh]

If I understand you correctly, you're looking to create custom events?

[zork]

Well. The only events you can rely on are the events provided by the API.

If there is no event in the API that is triggering whatever you need to ask for you can fall back to an OnUpdate script checking stuff every now and then.

And there is :HookScript. http://www.wowwiki.com/API_Frame_HookScript

[Dridzt]

You can fire custom events using AceEvent-3.0 or even simpler with Callbackhandler-1.0

[Resike]

I have a total custom dropdown, each time the user changes it's value, i would like to update it's propesions, however there are more dropdowns created by the same template, so i need something like the OnValueChanged script for sliders.

The only workaround i managed to pull out, is to hide/show a totally irrelevant invisible frame and listen it's OnShow/OnHide. But it's sounds like a pretty dumb solution.

[kurapica.igas]

Well, if you only need one event handler for one frame's event, it's simple to do it , just add one method to your frame, like :

------------------------------
-- Template part
------------------------------
local function Fire(self, event, ...)
    return type(self[event]) == "function" and self[event](self, ...)
end
 
local function OnClick(self)
    return self.Parent:Fire("OnValueChanged", self:GetID())
end
 
function CreateDropDownMenu( ... )
    local menu = CreateFrame("Frame", ...)
 
    -- Give it a new method
    menu.Fire = Fire
 
    -- Create menu buttons
    for i = 1, 10 do
        local btn = CreateFrame("Button", nil, menu)
        btn:SetID(i)
        btn.Parent = menu
 
        btn:SetScript("OnClick", OnClick)
    end
 
    return menu
end
 
------------------------------
-- Test part
------------------------------
local menu = CreateDropDownMenu()
 
function menu:OnValueChanged(value)
    -- action
end

[Phanx]

Originally Posted by Resike I have a total custom dropdown, each time the user changes it's value, i would like to update it's propesions, however there are more dropdowns created by the same template, so i need something like the OnValueChanged script for sliders.

This seems pretty straightforward... without seeing your code (sigh) it's impossible to give you a specific solution, but I assume your template already has some way to detect when the user clicks on an item in the menu and call some function (eg. to update a value in your settings table) so why can't you just update whatever you want to update (I'm not sure what you meant there where you wrote "propesions") in that function?