Hello Graham.
In fact the AbstractFactory has nothing to do with the NSPasteBoard. Im reading
the NSPasteBoard in the NSViewController after it's view has recevied the
performDropOperation:
so this is what Im doing:
NSPasteBoard pb = [sender draggingPasteboard]
NSArray * types = [pb types];
if([types containsObject:DefaultHorizontal]){
...
...
}
else if ( .... ){
}
else if (....){
}
So depending on what I have dragged, Im asking the AbstractFactory to create an
specific object. In the AbstractFactory Im not touching pb. ...
I jsut wanted to see from where is it coming, so I could just do something
like..
CustomObject a = [<AbstractFactory> createObjectWithName:[[types
objectAtIndex:1] description]];
or something like that instead of doing all those if-else clauses.
Gustavo
On Dec 10, 2009, at 11:39 AM, Graham Cox wrote:
>
> On 10/12/2009, at 9:26 PM, Gustavo Pizano wrote:
>
>> I have implemented a drag and drop, and I just wanted to check what I had in
>> the NSPasteBoard on drop...
>>
>> I checked the types from the NSPasteBoard, and the type I declared when
>> dragging is in the second place of the returning array. in first place it's.
>> something like:
>>
>> dyn.ah62d4rv4gu8zuz4xkvw0q2pzrv4fq3pwsvy0g2pqnrka
>>
>> can somebody explain me what's that? can I safely take the 2 type in the
>> array so I can pass it to my AbstractFactory and avoid a bunch of code
>> lines.?
>
>
> Who can say, without knowing how you've implemented your AbstractFactory?
>
> I'd say what you should do is follow the recommended approach for receiving
> data from a pasteboard, and request the types you're interested in in the
> order you want them. That way your code will be unaware of any private data
> the system has added to pasteboard and so you don't need to care about it.
>
> http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/PasteboardGuide106/Introduction/Introduction.html
>
> --Graham
>
>
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