OnLeave event for overlapping frames

[gmarco]

Hi,
I cross post also here trying to find some answer on an addon iussue I always used but I think it is not supported anymore, LitePanels.

The original post is here:
http://www.wowinterface.com/forums/s...283#post278283

To summary the problem on lua code is this:
I'd like to intercept the OnLeave event from a frame (a background) without to have false trigger when I mouse over an upper frame.

The scenario is:
- I make a background.
- I make a 3x3 bar of bt4 to fill the background and make it visible only when I move mouse on.
- I want that also the background will Show/Hide depending on the event OnEnter / OnLeave.

The problem is:
- The background triggers the OnLeave event also when I am mouseover the bt4 bar (that almost fill the background).

The question is:
- Is it possible to let the background trigger the OnLeave event only when leave the perimeter of the frame and not if I am move on another (upper) frame ?

The code:

lpanels:CreateLayout("Back2", {
 
    {   name = "P1", anchor_to = "BOTTOM", x_off = 0, y_off = 4,
 
        bg_alpha = 0.5, width = 460, height = 120,
 
        border = "SOLID", border_color = "CLASS",
 
    },
 
    
 
    {   name = "P2", 
 
        anchor_to="BOTTOMLEFT", anchor_from="BOTTOMRIGHT", anchor_frame = "P1", 
 
        x_off = 2, y_off = 0,
 
        bg_alpha = 0.5, width = 115, height = 120,
 
        border = "SOLID", border_color = "CLASS",
 
        OnLoad  = function(self) self:SetAlpha(0) end,
 
        OnEnter = function(self) 
 
            self:SetAlpha(1) 
 
            -- BT4Bar3:Show()
 
        end,
 
        OnLeave = function(self) 
 
            print( "DEBUG: The mouse is over " .. GetMouseFocus():GetName())
 
            if GetMouseFocus():GetParent() ~= self then 
 
                self:SetAlpha(0) 
 
            end 
 
        end,
    },
} )

I have tried first obvius code like:

OnLeave = function(self) self:SetAlpha(0) end

Then searching here and there I found in the forum the code below:

OnLeave = function(self) 
            if GetMouseFocus():GetParent() ~= self then 
                self:SetAlpha(0) 
            end 
        end,

But it doesn't work either ...

Uhm anyone can suggest something else ? :-)

[Haleth]

Two things come to mind, but I'm not sure whether either of them are the correct way of doing this.

You could simply hook your OnEnter/OnLeave functions to each of the buttons as well. You could also hook OnEnter on your background and start an OnUpdate script that polls to check if the cursor position is within the bounds of your background.

Won't something like this work, though?

local OnLeave = function(self)
	local parent = GetMouseFocus():GetParent()
	if not parent or (parent and parent ~= self) then
		self:SetAlpha(0)
	end
end

It's like the function you posted, but it checks if the mouse focus frame has a parent before attempting to compare it to self. It also hides it if the mouse focus doesn't have a parent (WorldFrame or UIParent). It won't work if the buttons fill the background entirely, though (then OnLeave gets called from the button instead of the background).

[zork]

Check IsMouseOver:
http://wowprogramming.com/docs/widge...on/IsMouseOver

Work with frame attributes. (frameHovered = true/false)

There is no OnMouseMove event though.

[Rilgamon]

The idea that comes to my mind:Why not setting 'parent' to your bt4-bar ?

[gmarco]

Originally Posted by zork Check IsMouseOver: http://wowprogramming.com/docs/widge...on/IsMouseOver Work with frame attributes. (frameHovered = true/false) There is no OnMouseMove event though.

It works, but only if there is not the BT4 bar over the frame.

Without the BT4 bar this works nicely.

OnLeave = function(self)
            isOver = self:IsMouseOver(878, 108, 976, 4)
            if isOver == true then
                print ("DEBUG:1")
                self:SetAlpha(1)
            else
                self:SetAlpha(0)
                print ("DEBUG:0")
            end
        end

I think the problem is that the OnLeave trigger should be binded to the BT4 bar (that actually got the event).

Thanks anyway for your answer.

[gmarco]

Originally Posted by Haleth Two things come to mind, but I'm not sure whether either of them are the correct way of doing this. You could simply hook your OnEnter/OnLeave functions to each of the buttons as well. You could also hook OnEnter on your background and start an OnUpdate script that polls to check if the cursor position is within the bounds of your background. Won't something like this work, though? local OnLeave = function(self) local parent = GetMouseFocus():GetParent() if not parent or (parent and parent ~= self) then self:SetAlpha(0) end end It's like the function you posted, but it checks if the mouse focus frame has a parent before attempting to compare it to self. It also hides it if the mouse focus doesn't have a parent (WorldFrame or UIParent). It won't work if the buttons fill the background entirely, though (then OnLeave gets called from the button instead of the background).

Hi Haleth,
the first solution I think is a little bit expensive, the second works but without the BT4 bar over the frame.

Same story of the Zork solution. It works but only if the BT4 bar don't get the mouseover event.

Thanks anyway for your kind answer.

[gmarco]

Originally Posted by Rilgamon The idea that comes to my mind:Why not setting 'parent' to your bt4-bar ?

Uhm ... explain better pls ? :-)


Edit:

It works ! :-)

lpanels:CreateLayout("Back2", {
    {   name = "P1", anchor_to = "BOTTOM", x_off = 0, y_off = 4,
        bg_alpha = 1, width = 460, height = 122,
        border = "SOLID", border_color = "CLASS",
    },
    
    {   name = "P2", parent = "BT4Bar3",
        anchor_to="BOTTOMLEFT", anchor_from="BOTTOMRIGHT", anchor_frame = "P1",
        x_off = 2, y_off = 0,
        bg_alpha = 1, width = 115, height = 120,
        border = "SOLID", border_color = "CLASS",
    },
    
} )

It is not so elegant but it works now after an afternoon of tries :-)

Thanks very much for your attention and ideas...

[Rilgamon]

Originally Posted by gmarco It is not so elegant but it works now

Hey, its the most elegant way. Never use a function when you can do without

[Seerah]

Parenting is *the* way to control visibility based on the visibility of another frame.