49 lines
1.1 KiB
Swift
49 lines
1.1 KiB
Swift
//
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// FeedListViewController.swift
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// Evergreen
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//
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// Created by Brent Simmons on 11/1/17.
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// Copyright © 2017 Ranchero Software. All rights reserved.
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//
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import Cocoa
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import RSTree
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final class FeedListViewController: NSViewController {
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@IBOutlet var outlineView: NSOutlineView!
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private let treeControllerDelegate = FeedListTreeControllerDelegate()
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lazy var treeController: TreeController = {
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TreeController(delegate: treeControllerDelegate)
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}()
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}
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// MARK: - NSOutlineViewDataSource
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extension FeedListViewController: NSOutlineViewDataSource {
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func outlineView(_ outlineView: NSOutlineView, numberOfChildrenOfItem item: Any?) -> Int {
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return nodeForItem(item as AnyObject?).numberOfChildNodes
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}
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func outlineView(_ outlineView: NSOutlineView, child index: Int, ofItem item: Any?) -> Any {
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return nodeForItem(item as AnyObject?).childNodes![index]
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}
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func outlineView(_ outlineView: NSOutlineView, isItemExpandable item: Any) -> Bool {
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return nodeForItem(item as AnyObject?).canHaveChildNodes
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}
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private func nodeForItem(_ item: AnyObject?) -> Node {
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if item == nil {
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return treeController.rootNode
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}
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return item as! Node
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}
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}
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