Hi.
I think I have found a bug in the code for the "append" method of the
"qx.data.Array" class in the framework 3.0.0.
This issue show up if you use a qx.data.Array instance as a model of a
qx.ui.mobile.list.List widget with objects that supports event bubbling, as
objects that use qx.data.marshal.MEventBubbling mixin.
The "append" method says:
append : function(array)
{
// qooxdoo array support
if (array instanceof qx.data.Array) {
array = array.toArray();
}
// this check is important because opera throws an uncatchable error
if
// apply is called without an array as argument.
if (qx.core.Environment.get("qx.debug")) {
qx.core.Assert.assertArray(array, "The parameter must be an
array.");
}
Array.prototype.push.apply(this.__array, array);
// add a listener to the new items
for (var i = 0; i < array.length; i++) {
this._registerEventChaining(array[i], null, this.__array.length +
i);
}
[....] // other code here
The problem is in the call of the _registerEventChaining method. The name of
the property, "this.__array.length + i", must represent the index of the new
items but the new items have already been appended to the "__array" array so
the index "this.__array.length + i" is out of range.
You can see the bug here in the playground:
http://tinyurl.com/p4hr66j
The configureItem method of the provider object for the
qx.ui.mobile.list.List
gets an undefined "data" parameter because I removed and appended the data
in the model (starts at line 53). You can see this because I called
"setTitle" on
an object activating the event bubbling mechanism when you click on the
Button.
If you comment the lines 55-58 all works correctly.
I hope I made myself clear because it was really difficult to debug the
issue.
Thanks for this worderful framework! It's really a good job and a pleasure
to work with.
Leonardo
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