Drag and Drop to NSArrayController - macos

Question

I am struggling to pass a variable received from a drag and drop (file from finder onto NSView) to a NSArrayController in AppDelegate.
NSView receives the drag and drop:
class MyView:NSView, NSDraggingDestination {
override func drawRect(dirtyRect: NSRect) {
super.drawRect(dirtyRect)
}
let fileTypes = ["jpg", "jpeg", "bmp", "tif", "TIF"]
var fileTypeIsOk = false
var droppedFilePath = ""
required init?(coder: NSCoder) {
let types = [NSFilenamesPboardType, NSURLPboardType, NSPasteboardTypeTIFF]
super.init(coder: coder)
registerForDraggedTypes(types)
}
override func draggingEntered(sender: NSDraggingInfo) -> NSDragOperation {
if checkExtension(sender) == true {
fileTypeIsOk = true
return .Every
} else {
fileTypeIsOk = false
println("Dropped images rejected.")
return .None
}
}
override func performDragOperation(sender: NSDraggingInfo) -> Bool {
var go = false
if let board = sender.draggingPasteboard().propertyListForType("NSFilenamesPboardType") as? NSArray {
for indexFile in 0...board.count-1 {
println("Files dropped \(board[indexFile])")
//-> pass the variable board[indexFile] or board[] to NSArrayController
go = true
}
}
return go
}
func checkExtension(drag: NSDraggingInfo) -> Bool {
var go = false
var foundExtension = 0
var numberOfFiles = 0
if let board = drag.draggingPasteboard().propertyListForType("NSFilenamesPboardType") as? NSArray {
numberOfFiles = board.count
for indexFile in 0...numberOfFiles-1 {
if let url = NSURL(fileURLWithPath: (board[indexFile] as! String)) {
let suffix = url.pathExtension!
for ext in fileTypes {
if ext.lowercaseString == suffix {
++foundExtension
break
}
}
}
}
}
if foundExtension == numberOfFiles {
println("Dropped files have valid extension.")
go = true
} else {
println("At least one file dropped has an invalid extension.")
}
return go
}
}
in AppDelegate, I have set up an NSArrayController (pointing to data[] at the moment but I don't know how to populate data[] from board[])
func numberOfRowsInTableView(aTableView: NSTableView) -> Int {
return data.count
}
func tableView(tableView: NSTableView, viewForTableColumn tableColumn: NSTableColumn?, row: Int) -> NSView? {
var cellView: NSTableCellView = tableView.makeViewWithIdentifier(tableColumn!.identifier, owner: self) as! NSTableCellView
println("Reload Array")
if tableColumn!.identifier == "fileNameColumn" {
cellView.imageView!.image = NSImage(named: "GreenCircle")
cellView.textField!.stringValue = data[row]
return cellView
}
...
thank you for your help

Answer 1

Call the "- (void)addObjects:(NSArray *)objects;" method on your NSArrayController and pass it board:
[self.myArrayController addObjects:board];

Answer 2

It worked by adding in NSView: performDragOperation:
let appDelegate = NSApplication.sharedApplication().delegate as! AppDelegate
then I can reach the 'data' variable using appDelegate.data.