Hi Joachim,

I expect that you are not using the widget system from qooxdoo.

>    I am currently trying to implement a gimmick where I flash up an
> element's background colour white and then let it fade out whenever
> the mouse passes over the item. I got the "flash" working with
> ColorFlow, but due to nature of my program, I do not really know the
> exact background colour which I should finish the animation on, which
> would naturally be the original background colour before the "flash".
> Currently, the items that flash up have a background colour value of
> "null" and only the parent's parent-container finally has a proper
> background colour set.
>
>    As a workaround, I tried to set the DOM element's background colour
> to a transparent RGBA colour once the animation finishes.
You can also use [1] to change the opacity from one to zero. This has 
also the same effect like changing the color to transparent.

[1] http://demo.qooxdoo.org/current/apiviewer/#qx.fx.effect.core.Fade

>   I set a listener on 'finish' for the ColorFlow animation, but it seems that
> the 'finish' event is thrown prematurely (Qooxdoo, 1.0).
Could you please provide a code snippet to reproduce the prematurely 
"finish" event issue.

>    Alternatively, is there a way to figure out the parent's
> parent-container background colour somehow without explicitly
> referencing the object? In other words, is there something like
> "object.getParent().getParent().getBackgroundColor()" or similar?
>    
No, not on low-level.  You can use the getParentElement [2] to get the 
parent from a DOM element and get method [3] to get the background color.

[2] 
http://demo.qooxdoo.org/current/apiviewer/#qx.dom.Element~getParentElement
[3] http://demo.qooxdoo.org/current/apiviewer/#qx.bom.element.Style~get

Cheers,
Chris




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