Re: How To Lookup Widgets

Hi Anakrewn Meidis,
Hi all,

> It's fine.
> Only that the scripts should take a reference to the
> frames
> that have been created and orphan JPanelEx 
> (those who do not belong to any JFrame) if any.

  Ok. There are multiple options. You might wonna look
into the exisiting registries/maps managed by the
XulManager or create new ones or use a completely
different approach as you see fit.

> In the sources I sent, XulManager has a list with
> the JFrame instances.
> An other solution would be to have a method (e.g
> lookupFrame(String name))
> declared at XulManager (or some other class which
> the scripts have access).

  First, let me clear up what I think is a possible
confusion of terms. A frame in XUL/HTML speak is
basically a HTML browser widget and a window in XUL
speak is what a frame (e.g. JFrame) is in Java Swing.
Luxor follows the XUL "terminology" and thus window is
preferred over frame.

  Now back to Luxor if you want to lookup Swing
JFrames by name there's currently the lookupWindow
method in place. I'm not sure if it meets your needs.

> Only that the method should not create a new
> instance each time is called.
> If for example a JFrame with name "MAIN" is allready
> created that instance
> should be returned, otherwise a new instance will be
> created or null should 
> be returned(I don't know what would be best). 

  I agree it's hard to know what's best. Currently
Luxor uses a two method pair approach, that is, there
is a lookupWindow() method and a createWindow()
method. The difference is that createWindow() throws
an exception if the window id doesn't exist while the
lookupWindow() method just returns null.

  To add your use case, that is, a lookup that doesn't
create the window/frame if it doesn't exist, I suggest
to create a new lookupWindow method either with an
argument such a boolean create or using a slightly
different name such a lookupWindowNoCreate() or
whatever.

  - Gerald



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf