How do I share an NSArrayController between two nib files?

Question

I have an array of images, and two nib files. One nib file has a window that displays the images in an NSTableView. The other nib has a window that draws the array of images into an NSView, and also draws a highlight over the images that are selected.

The array of images is controlled by an NSArrayController. I'm having trouble getting the two nibs to share the NSArrayController. I would have two separate NSArrayControllers bound to the same content, but I also want both nibs to share the controller's selection; that is, if you select an image in the table window, it also becomes selected in the other window.

Is there a standard way to do this?

Yarak

Answer 1

I would have two separate NSArrayControllers bound to the same content, but I also want both nibs to share the controller's selection; that is, if you select an image in the table window, it also becomes selected in the other window.

Is there a standard way to do this?

Have two separate NSArrayControllers bound to the same content and selection indexes.

Helen

@peter Could you elaborate on how to connect the two NSArrayControllers? – Cirrose

@Gavin: You don't. You just bind both controllers' content and selection-indexes bindings to the same properties of the same object. – Helen

@PeterHosey Could you please check out my similar question and carry on the comments there #9357363 – Cirrose

@PeterHosey Could you please elaborate a little more your answer ? You send via the init methods the content and selection indexes, and then bind them to another NSArrayController ? – Erv

@Colas: You have two array controllers (one in each nib), and you bind the contentArray and selectionIndexes of both of them to the same two properties of a third object (probably the FO). – Helen

@PeterHosey But what is this object ? If it is an instance (in the 2nd nib) of an object pointing the right object (in the 1st nib), is it enough ? Or, do we have to add observers ? – Erv

@Colas: Like I said, usually the FO of both nibs. Whatever object owns the content array (and, because both array controllers will need it, the set of selection indexes). – Helen