[Laszlo-user] Creating new base classes with the new keyword?

[P T Withington]

On 2008-07-17, at 23:18EDT, Kenneth Miller wrote:

> Is it possible to programmatically create new user interface methods  
> through scripting?
>
> var new_window = new window()?

Yes, but LZX classes are in a pseudo-namespace, you would actually  
have to say:

var new_window = new lz.window(...

and, you need to know that all view (and subclass) constructors take  
the following arguments:

parent: the view that it will be a child of
attributes: a hash (Object) of initial attribute values
children: an Array of child view descriptors (see below)

Alternatively, you can invoke:

  <someview>.makeChild(...

Which takes a descriptor {Object} that has the following properties:

'class': the class of the view you want to instantiate, e.g., lz.window
attrs: initial attribute values
children: Array of child view descriptors

Note that neither of these API's is officially supported as a public  
API, apparently, because I cannot find this information in the  
documentation?

> Also,
>  Is there a way to see the names defined in the current namespace,  
> sort of like python's dir() function in the debug interpreter?

In swf8 and DHTML the 'current namespace' is called `global`.  If you  
say Debug.inspect(global) you will see everything.

The swf8 debugger also supports completion.  Start typing, hit tab and  
you will get a list of possibilities.