Hey,
Is there a possibility to pass the this-reference to the callback function?
No, the converter does not offer the setting of a context so you can use the
closure variant you already suggested. Another way would be to bind the
converter function using the function bind [1], which qooxdoo offers as
polyfill. This might be a more elegant way.
Another question is:
I have a button, in that execute listener I want to call a callback function
which is defined in another class, and in that callback-
function I want to use the this-reference of the same class, how can I do
that?
As the function 'showConfirmationDialog' is a plain JavaScript function, you
can use either call or apply to set the context of the function. Just check out
the MDN article on both functions [2] [3] to get an idea of how to use them.
Regards,
Martin
[1]
https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Function/bind
[2]
https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Function/call
[3]
https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Function/apply
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