Write dragged feeds with various UTI types, including a custom feed type.

Evergreen/MainWindow/Sidebar/FeedPasteboardWriter.swift

@@ -0,0 +1,100 @@
+//
+//  FeedPasteboardWriter.swift
+//  Evergreen
+//
+//  Created by Brent Simmons on 11/7/17.
+//  Copyright © 2017 Ranchero Software. All rights reserved.
+//
+
+import Cocoa
+import Data
+
+@objc final class FeedPasteboardWriter: NSObject, NSPasteboardWriting {
+
+	private let feed: Feed
+	static let feedUTI = "com.ranchero.feed"
+	static let feedUTIType = NSPasteboard.PasteboardType(rawValue: feedUTI)
+	static let feedUTIInternal = "com.ranchero.evergreen.internal.feed";
+	static let feedUTIInternalType = NSPasteboard.PasteboardType(rawValue: feedUTIInternal)
+
+	init(feed: Feed) {
+
+		self.feed = feed
+	}
+
+	// MARK: - NSPasteboardWriting
+
+	func writableTypes(for pasteboard: NSPasteboard) -> [NSPasteboard.PasteboardType] {
+
+		return [.string, .URL, FeedPasteboardWriter.feedUTIType, FeedPasteboardWriter.feedUTIInternalType]
+	}
+
+	func pasteboardPropertyList(forType type: NSPasteboard.PasteboardType) -> Any? {
+
+		let plist: Any?
+
+		switch type {
+		case .string:
+			plist = feed.nameForDisplay
+		case .URL:
+			plist = feed.url
+		case FeedPasteboardWriter.feedUTIType:
+			plist = exportDictionary()
+		case FeedPasteboardWriter.feedUTIInternalType:
+			plist = internalDictionary()
+		default:
+			plist = nil
+		}
+
+		return plist
+	}
+}
+
+private extension FeedPasteboardWriter {
+
+	private struct Key {
+
+		static let url = "URL"
+		static let homePageURL = "homePageURL"
+		static let name = "name"
+
+		// Internal
+		static let accountID = "accountID"
+		static let feedID = "feedID"
+		static let editedName = "editedName"
+		static let unreadCount = "unreadCount"
+	}
+
+	func exportDictionary() -> [String: String] {
+
+		var d = [String: String]()
+
+		d[Key.url] = feed.url
+		d[Key.homePageURL] = feed.homePageURL ?? ""
+		d[Key.name] = feed.nameForDisplay
+
+		return d
+	}
+
+	func internalDictionary() -> [String: Any] {
+
+		var d = [String: Any]()
+
+		d[Key.url] = feed.url
+		if let homePageURL = feed.homePageURL {
+			d[Key.homePageURL] = homePageURL
+		}
+		if let name = feed.name {
+			d[Key.name] = name
+		}
+		if let editedName = feed.editedName {
+			d[Key.editedName] = editedName
+		}
+		if feed.unreadCount > 0 {
+			d[Key.unreadCount] = feed.unreadCount
+		}
+
+		return d
+
+	}
+}

Evergreen/MainWindow/Sidebar/SidebarViewController.swift

@@ -27,7 +27,9 @@ import RSCore
 	override func viewDidLoad() {
 
 		outlineView.sidebarViewController = self
-		
+		outlineView.setDraggingSourceOperationMask(.move, forLocal: true)
+		outlineView.setDraggingSourceOperationMask(.copy, forLocal: false)
+
 		NotificationCenter.default.addObserver(self, selector: #selector(unreadCountDidChange(_:)), name: .UnreadCountDidChange, object: nil)
 		NotificationCenter.default.addObserver(self, selector: #selector(containerChildrenDidChange(_:)), name: .ChildrenDidChange, object: nil)
 		NotificationCenter.default.addObserver(self, selector: #selector(userDidAddFeed(_:)), name: .UserDidAddFeed, object: nil)
@@ -140,7 +142,7 @@ import RSCore
         }
     }
 
-	//MARK: NSOutlineViewDataSource
+	// MARK: NSOutlineViewDataSource
 
 	func outlineView(_ outlineView: NSOutlineView, numberOfChildrenOfItem item: Any?) -> Int {
 		
@@ -156,6 +158,15 @@ import RSCore
 		
         return nodeForItem(item as AnyObject?).canHaveChildNodes
 	}
+
+	func outlineView(_ outlineView: NSOutlineView, pasteboardWriterForItem item: Any) -> NSPasteboardWriting? {
+
+		let node = nodeForItem(item as AnyObject?)
+		if let feed = node.representedObject as? Feed {
+			return FeedPasteboardWriter(feed: feed)
+		}
+		return nil
+	}
 }
 
 //MARK: - Private

Evergreen/MainWindow/Timeline/TimelineViewController.swift

@@ -69,7 +69,6 @@ class TimelineViewController: NSViewController, KeyboardDelegate, UndoableComman
 		tableView.target = self
 		tableView.doubleAction = #selector(openArticleInBrowser(_:))
 		tableView.keyboardDelegate = self
-		tableView.setDraggingSourceOperationMask(.copy, forLocal: true)
 		tableView.setDraggingSourceOperationMask(.copy, forLocal: false)
 
 		if !didRegisterForNotifications {