Dojo: dijit.form.select won't fire "onClick" event the first time clicked - forms

Question

I've been through the Dojo docs as well as the API and tried Google but can't find a solution to my problem, I hope anybody here can help me out.
I'm trying to create a dijit.form.select programmatically (using Dojo 1.4) and connect to the "onClick"-event of the widget.
Here's a part of my code:
var dataSelect = new dijit.form.Select({
id : "myselect",
name : "myselect",
labelAttr: "label",
labelType: "html"
},
"selectid");
dataSelect.addOption({value: "value", label: "first item label"});
dojo.connect(dataSelect, "onClick", function() {
alert("clicked!");
});
What it does: A select-box is created replacing an input-field with the ID "selectid", an option "first item label" is created. Everythings all right until here.
Then I connect to the "onClick"-event of the select, which is supposed to load more options via AJAX (but will just display an alert for testing purposes in this example).
The problem: When I click on the little arrow next to the dropdown, the event is fired (OK). But when I click on the select box itself (the area containing the option), the event is NOT fired the first time I click it (unless I clicked on the arrow before).
When I click the select box a second time (and every time after that), the event will fire!
I've tried to use "onFocus" instead of "onClick" which does work, but then the dropdown will not open when first clicked, even if I use the "openDropDown"-function (which does work when connecting to "onClick"!).
Is it me, did I run into a Dojo bug or is it a strange feature I just don't get?
Any help is appreciated.
Greetings,
Select0r

Answer 1

Here is a cross-browser solution:
var sizeSelect = new dijit.form.Select({
id: "sizeSelect",
name: "state",
options: size,
onChange: function(val) {
dojo.style(dojo.byId("textInput"), {"fontSize":val});
}
}, "sizeSelect");

Answer 2

Try to connect not to the widget itself but to it's dom node:
dojo.connect(dataSelect.domNode, "onclick", function() {
alert("clicked!");
});

Answer 3

Select (which extends _HasDropDown) has fancy code to handle:
mouse down on select widget
mouse move to one of the options
mouse up
Maybe that's canceling the click event.
Maybe you can connect to _loadChildren() instead.

Answer 4

The root cause for this issue is that the _onDropDownMouseDown method of dijit._HasDropDown will manipulate the dom node, which cause the e.target of onmousedown and onmouseup changes for the first initialization.
As we know, the onclick event will be triggered only when the target of onmousedown and onmouseup are the same target.
So in this case, the onclick event is not triggered.
It seems that in Dojo 1.5, the problem still remains.