On Tue, Nov 11, 2008 at 9:53 AM, Jean-Baptiste BRIAUD -- Novlog <
[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have a general question on event :
>
> Let's take an example : the changeActive event of the
> qx.ui.window.Window class.
>
> Thanks to the well designed qooXdoo framework, I know without question
> that I can use the listener like that :
> win.addListener("changeActive", function(e) { blabla });
>
> But where could I know more about e ? Is there sometimes more than one
> parameter ?
> Is it a generic thing for all events or is there specific value
> depending of the event ?
Each class that fires events specifies (documents) the events it fires. If,
for example, you look at the API documentation for qx.ui.window.Window at
http://demo.qooxdoo.org/current/apiviewer/#qx.ui.window.Window you'll see a
section called "Events" listing each of the events that the class fires and
(on the left), the type of event. In that class, all of the fired events
are either of type "Event" or type "Data". You can click on those links
which will take you to the qx.event.type.Event or qx.event.type.Data
documentation.
Unfortunately, that answers only a part of your question. You'll see that
changeActive fires a Data event, and in looking at the Data event
documentation, you can retrieve the data using e.getData(). That doesn't
tell you what the data is.
I would recommend that you post a new bug requesting that each class
describe the format of the data for each event it fires. You should see
that documentation, for example, in the Events section of the
qx.ui.window.Window API documentation. Some classes already describe their
data, but this one and many more do not.
Derrell
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