/*

Copyright (C) 2017 Apple Inc. All Rights Reserved.

See LICENSE.txt for this sample’s licensing information

Abstract:

This sample's split view managing both the master and detail view controllers.

*/

import Cocoa

class SplitViewController : NSSplitViewController, MasterViewControllerDelegate {

    @IBOutlet weak var MySplitView: NSSplitView!

    var masterViewController: MasterViewController!

    var detailViewController: DetailViewController!

    // MARK: - View Controller Lifecycle

    override func viewDidLoad() {

        super.viewDidLoad()

        // Note: we keep the left split view item from growing as the window grows by setting its holding priority to 200,

        // and the right to 199. The view with the lowest priority will be the first to take on additional width if the

        // split view grows or shrinks.

        //

        MySplitView.adjustSubviews()

        masterViewController = splitViewItems[0].viewController as! MasterViewController

        masterViewController.delegate = self   // Listen for table view selection changes.

        detailViewController = splitViewItems[1].viewController as! DetailViewController

        // Make our master view controller adopt DetailViewControllerDelegate to listen for photo changes.

        detailViewController.detailViewDelegate = masterViewController

        detailViewController.detailItemRecord = nil // Start off with no selected photo.

        splitView.autosaveName = "SplitViewAutoSave"   // Remember the split view position.

    }

    // MARK: - MasterViewControllerDelegate

    func didChangePhotoSelection(masterViewController: MasterViewController, selection: Int) {

        if selection != -1 && selection != NSNotFound {

            // Find the photo that was selected and change the detail view controller to that photo.

            let photos = masterViewController.photoArrayController.arrangedObjects as! Array<AnyObject>

            let selectedPhoto = photos[selection] as! CloudPhoto

            detailViewController.detailItemRecord = selectedPhoto

        }

        else {

            detailViewController.detailItemRecord = nil // No photo found that was selected.

        }

    }

}