CheckBox in ComboBox - qooxdoo

Question

I would like to have checkBoxes inside a comboBox, like in this simplified example :
var rawData = [];
for (var i = 0; i < 20; i++) {
rawData.push(i);;
}
var data = new qx.data.Array(rawData);
var list = new qx.ui.form.ComboBox();
list.setWidth(150);
this.getRoot().add(list);
var controller = new qx.data.controller.List(null, list);
var delegate = {
createItem : function() {
return new qx.ui.form.CheckBox();
}
};
controller.setDelegate(delegate);
controller.setModel(data);
It's working but i'm not able to "check" the checkboxes because the combobox is closed when i click on it, so i would like to open/close the combobox only with the button.
How to do it? Thanks in advance.

Answer 1

Some event of the ComboBox is responsible for closing the PopUp (see code on GitHub) before the click can get to an underlying checkbox. If you implement your own ComboBox and overwrite the close method it works.
qx.Class.define("foo.ComboBox", {
extend: qx.ui.form.ComboBox,
members: {
close: function() {
}
}
})
var rawData = [];
for (var i = 0; i < 20; i++) {
rawData.push(i);;
}
var data = new qx.data.Array(rawData);
var list = new foo.ComboBox();
list.setWidth(150);
var controller = new qx.data.controller.List(null, list);
var delegate = {
createItem : function() {
return new qx.ui.form.CheckBox();
}
};
controller.setDelegate(delegate);
controller.setModel(data);
this.getRoot().add(list);
However now you have to think about how you will handle multiple selection of checkboxes and when to close the popup.