Re: [Dynapi-Dev] Problems in inheritence (General and PanelBar)

[Raymond I. <xw...@ya...>]

The problem PanelBar and isClass() is due to fact that
the prototype was not created using
dynapi.setPrototype()

Instead of var p = PanelBar.prototype = new DynLayer
it should be var p =
dynapi.setPrototype('PanelBar','DynLayer');

--
Raymond Irving

--- Peter Romianowski <ant...@gm...> wrote:
> Hi,
> 
> I have two problems here. First I cannot subclass
> PanelBar until I 
> comment out some stuff in the constructor like that:
> 
> function
>
PanelBar(lyrmnu,lyrcnt,mnuheight,x,y,w,h,mnucss,cntcss,minimized)
> {
> 
>    this.DynLayer = DynLayer;
>    this.DynLayer(null,x,y,w,h,null);
> 
>    if (lyrmnu) {	
>      this.x = x;
>      ...
>     
>
this.menu.setHTML(this._mnuhtml.replace('{@min}',this._mnuhtmlmax));
>    }
> 		
>    this.onPreCreate(PanelBar.PreCreateEvent);
>    this.onCreate(PanelBar.CreateEvent);
> }
> }
> 
> Is there any common pattern how to avoid problems
> with subclassing? Or 
> am I doing something totally stupid in trying to
> subclass PanelBar?
> 
> The next problem is that I can't enable the
> dragevents on my subclass of 
> PanelBar until I change dragevent.js line 225
> (enableDragEvents):
> 
> if(lyr.isClass('DynLayer'))
> lyr.addEventListener(DragEvent.lyrListener);
> 
> to
> 
> lyr.addEventListener(DragEvent.lyrListener);
> 
> That is bruteforce, I know ;) I just tried to figure
> out where the 
> problem is. And I found that
> myPanelBarSubclass.isClass('DynLayer') 
> yields false which I consider as wrong - it is a
> DynLayer since it is a 
> subclass of PanelBar which is a subclass of
> DynLayer! The quickest fix I 
> can imagine is to rewrite the isClass-method to tell
> whether any 
> superclass matches the argument. I don't know if
> this breaks something, 
> so I didn't try that yet.
> 
> If I am trying to do something totally wrong then
> please tell me! 
> Otherwise I will gladly help "fixing" the issues.
> 
> Regards,
> Peter
> 
> default disclaimer: DynAPI rules! ;)
> 
> 
> 
>
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