Even better here is a playground example:
http://tinyurl.com/nrea2n2
On Fri, Jan 1, 2016 at 2:08 PM, Jonathan Wolfe <jonathan.wo...@noaa.gov>
wrote:
> Hi,
>
> I am trying to implement just the ColorSelector window which appears after
> selecting the "Open ColorSelector" button in the qx.ui.control.ColorPopup.
> So, I thought I would extend the ColorPopup class and just override the
> _createChildControlImpl function so that the ColorSelector appears
> automatically; however when I do this, I am getting this error:
>
> 023800 Assertion error! Failed to add event listener for type 'mousedown'
> to the target 'qx.ui.core.Widget': Invalid callback function: Expected
> value to be typeof function but found 'undefined'!
>
> Uncaught Failed to add event listener for type 'mousedown' to the target
> 'qx.ui.core.Widget': Invalid callback function: Exception while creating
> child control 'field#0' of widget edd.JQx.ColorSelector[9954-0]: Expected
> value to be typeof function but found 'undefined'!
>
>
> *Here is my code snippet:*
>
> qx.Class.define("edd.JQx.ColorSelector",
> {
> extend : qx.ui.control.ColorPopup,
> members :
> {
>
> // overridden
> _createChildControlImpl : function(id, hash)
> {
> this.base(arguments);
> var control;
> switch(id)
> {
> case "field":
> control = new qx.ui.core.Widget;
> control.addListener("mousedown", this._onFieldMouseDown,
> this); // <------------- Fails here
>
>
>
> I thought that the this._onFieldMouseDown would be brought along in the
> extension, but maybe this has something to do with two arguments being
> passed to the _createChildControlImpl function and I'm not capturing it
> properly? Any pointers would be greatly appreciated! Thanks and Happy New
> Year!
>
> Jonathan
>
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