Think about the Finder. You click on a file, get a preview. If you like it
you can open it. That's what I'm driving at. You click on a row in a
tableView, you get a preview (the opening is in code, I'm storing an index of
file references in a different NSDocument) and if you like it you open up in a
new window. The difference here is you can edit the file in preview.
I'll try your code. Thanks for the reply.
On Apr 30, 2010, at 1:17 PM, Quincey Morris wrote:
> On Apr 30, 2010, at 08:56, Brad Stone wrote:
>
>> I want to open NSPersistentDocuments and load them into the same window one
>> at a time.
>
> Excuse the soapbox, but you do realize that from the outside looking in, this
> *seems* like a terrible idea? If your documents really are documents in the
> user interface sense, then what's the reason for inventing a new
> document-handling metaphor for users? If they're not really documents, then
> why try to shoehorn them into the NSDocument metaphor?
>
> Keep in mind that Core Data persistent stores don't really fit the standard
> document metaphor very well, so that NSPersistentDocument is already a little
> bit broken. (Ask the people who've had trouble with Save As, for example.)
> Piling on another layer of metaphorical abuse seems like a prescription for
> great pain. But anyway ...
>
>> - (IBAction)newBookTwo:(id)sender {
>> NSDocumentController *dc = [NSDocumentController
>> sharedDocumentController];
>> NSURL *url = [NSURL fileURLWithPath:[@"~/Desktop/File 2.binary"
>> stringByExpandingTildeInPath]];
>>
>> NSError *error;
>> MainWindowDocument *thisDoc = [dc openDocumentWithContentsOfURL:url
>> display:NO error:&error];
>>
>> [self setDocument:thisDoc];
>> [self setManagedObjectContext:[thisDoc managedObjectContext]];
>> }
>
> Here's what I'd try (apologies if you've tried this already; all typed in
> mail):
>
> 1. Create a global variable:
>
> MyWindowController* recycledWindowController = nil;
>
> 2. In the window controller:
>
> - (IBAction)newBookTwo:(id)sender {
> NSDocumentController *dc = [NSDocumentController
> sharedDocumentController];
> NSURL *url = [NSURL fileURLWithPath:[@"~/Desktop/File 2.binary"
> stringByExpandingTildeInPath]];
>
> recycledWindowController = self;
> [self.document removeWindowController: self];
>
> NSError *error;
> MainWindowDocument *thisDoc = [dc openDocumentWithContentsOfURL:url
> display:NO error:&error];
> }
>
> 3. In the document:
>
> - (void) makeWindowControllers {
> if (! recycledWindowController) {
> recycledWindowController = ... // create a new window controller
> recycledWindowController.shouldCloseDocument = YES;
> }
> [self addWindowController: recycledWindowController];
> [recycledWindowController noteChangedDocument]; // or send a
> notification, or have the window controller KVO-observe its own 'document'
> property
> recycledWindowController = nil;
> }
>
> Something like that.
>
>
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