Make progress on deleting and especially undoing delete.
This commit is contained in:
Brent Simmons
parent
2396a3bfca
commit
ef303c0c38
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@ -0,0 +1,134 @@
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//
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// DeleteFromSidebarCommand.swift
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// Evergreen
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//
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// Created by Brent Simmons on 11/4/17.
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// Copyright © 2017 Ranchero Software. All rights reserved.
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//
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import Foundation
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import RSCore
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import RSTree
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import Account
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import Data
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final class DeleteFromSidebarCommand: UndoableCommand {
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private struct ActionName {
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static private let deleteFeed = NSLocalizedString("Delete Feed", comment: "command")
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static private let deleteFeeds = NSLocalizedString("Delete Feeds", comment: "command")
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static private let deleteFolder = NSLocalizedString("Delete Folder", comment: "command")
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static private let deleteFolders = NSLocalizedString("Delete Folders", comment: "command")
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static private let deleteFeedsAndFolders = NSLocalizedString("Delete Feeds and Folders", comment: "command")
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}
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let undoActionName: String
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var redoActionName: String {
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get {
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return undoActionName
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}
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}
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let undoManager: UndoManager
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init?(nodesToDelete: [Node], undoManager: UndoManager) {
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var numberOfFeeds = 0
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var numberOfFolders = 0
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for node in nodesToDelete {
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if let _ = node.representedObject as? Feed {
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numberOfFeeds += 1
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}
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else if let _ = node.representedObject as? Folder {
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numberOfFolders += 1
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}
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else {
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return nil // Delete only Feeds and Folders.
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}
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}
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if numberOfFeeds < 1 && numberOfFolders < 1 {
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return nil
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}
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if numberOfFolders < 1 {
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self.undoActionName = numberOfFeeds == 1 ? ActionName.deleteFeed : ActionName.deleteFeeds
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}
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else if numberOfFeeds < 1 {
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self.undoActionName = numberOfFolders == 1 ? ActionName.deleteFolder : ActionName.deleteFolders
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}
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else {
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self.undoActionName = ActionName.deleteFeedsAndFolders
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}
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self.undoManager = undoManager
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}
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func perform() {
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registerUndo()
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}
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func undo() {
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registerRedo()
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}
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static func canDelete(_ nodes: [Node]) -> Bool {
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// Return true if all nodes are feeds and folders.
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// Any other type: return false.
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if nodes.isEmpty {
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return false
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}
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for node in nodes {
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if let _ = node.representedObject as? Feed {
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continue
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}
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if let _ = node.representedObject as? Folder {
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continue
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}
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return false
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}
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return true
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}
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}
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// Remember as much as we can now about the items being deleted,
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// so they can be restored to the correct place.
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private struct SidebarItemSpecifier {
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weak var account: Account?
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let node: Node
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let folder: Folder?
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let feed: Feed?
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let path: ContainerPath
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init?(node: Node) {
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self.node = node
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var account: Account?
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if let feed = node.representedObject as? Feed {
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self.feed = feed
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account = feed.account
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}
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else if let folder = node.representedObject as? Folder {
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self.folder = folder
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account = folder.account
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}
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guard let account = account else {
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return nil
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}
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self.account = account
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self.path = SidebarPath(account: account, node: node)
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}
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}
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@ -82,6 +82,7 @@
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84B99C671FAE35E600ECDEDB /* FeedListTreeControllerDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84B99C661FAE35E600ECDEDB /* FeedListTreeControllerDelegate.swift */; };
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84B99C691FAE36B800ECDEDB /* FeedListFolder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84B99C681FAE36B800ECDEDB /* FeedListFolder.swift */; };
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84B99C6B1FAE370B00ECDEDB /* FeedListFeed.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84B99C6A1FAE370B00ECDEDB /* FeedListFeed.swift */; };
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84B99C9D1FAE83C600ECDEDB /* DeleteFromSidebarCommand.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84B99C9C1FAE83C600ECDEDB /* DeleteFromSidebarCommand.swift */; };
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84BB4B771F11753300858766 /* Data.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 84BB4B681F1174D400858766 /* Data.framework */; };
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84BB4B781F11753300858766 /* Data.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 84BB4B681F1174D400858766 /* Data.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
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84DAEE301F86CAFE0058304B /* OPMLImporter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84DAEE2F1F86CAFE0058304B /* OPMLImporter.swift */; };
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@ -452,6 +453,7 @@
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84B99C661FAE35E600ECDEDB /* FeedListTreeControllerDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedListTreeControllerDelegate.swift; sourceTree = "<group>"; };
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84B99C681FAE36B800ECDEDB /* FeedListFolder.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedListFolder.swift; sourceTree = "<group>"; };
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84B99C6A1FAE370B00ECDEDB /* FeedListFeed.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FeedListFeed.swift; sourceTree = "<group>"; };
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84B99C9C1FAE83C600ECDEDB /* DeleteFromSidebarCommand.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DeleteFromSidebarCommand.swift; sourceTree = "<group>"; };
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84BB4B611F1174D400858766 /* Data.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = Data.xcodeproj; path = Frameworks/Data/Data.xcodeproj; sourceTree = "<group>"; };
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84DAEE2F1F86CAFE0058304B /* OPMLImporter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OPMLImporter.swift; sourceTree = "<group>"; };
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84DAEE311F870B390058304B /* DockBadge.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = DockBadge.swift; path = Evergreen/DockBadge.swift; sourceTree = "<group>"; };
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@ -542,6 +544,7 @@
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isa = PBXGroup;
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children = (
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84702AA31FA27AC0006B8943 /* MarkReadOrUnreadCommand.swift */,
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84B99C9C1FAE83C600ECDEDB /* DeleteFromSidebarCommand.swift */,
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);
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path = Commands;
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sourceTree = "<group>";
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@ -1237,6 +1240,7 @@
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849A97781ED9EC04007D329B /* TimelineCellLayout.swift in Sources */,
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849A976C1ED9EBC8007D329B /* TimelineTableRowView.swift in Sources */,
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849A977B1ED9EC04007D329B /* UnreadIndicatorView.swift in Sources */,
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84B99C9D1FAE83C600ECDEDB /* DeleteFromSidebarCommand.swift in Sources */,
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849A97541ED9EAC0007D329B /* AddFeedWindowController.swift in Sources */,
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849A976D1ED9EBC8007D329B /* TimelineTableView.swift in Sources */,
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84B99C671FAE35E600ECDEDB /* FeedListTreeControllerDelegate.swift in Sources */,
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@ -201,6 +201,17 @@ public final class Account: DisplayNameProvider, UnreadCountProvider, Container,
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return folder
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}
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public func ensureFolder(withFolderNames folderNames: [String]) -> Folder? {
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// TODO: support subfolders, maybe, some day.
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// Since we don’t, just take the last name and make sure there’s a Folder.
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guard let folderName = folderNames.last else {
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return nil
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}
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return ensureFolder(with: folderName)
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}
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public func canAddFeed(_ feed: Feed, to folder: Folder?) -> Bool {
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// If folder is nil, then it should go at the top level.
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@ -20,6 +20,7 @@
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846E77541F6F00E300A165E2 /* AccountManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 846E77531F6F00E300A165E2 /* AccountManager.swift */; };
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848935001F62484F00CEBD24 /* Account.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 848934F61F62484F00CEBD24 /* Account.framework */; };
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848935051F62485000CEBD24 /* AccountTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 848935041F62485000CEBD24 /* AccountTests.swift */; };
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84B99C9F1FAE8D3200ECDEDB /* ContainerPath.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84B99C9E1FAE8D3200ECDEDB /* ContainerPath.swift */; };
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84C3654A1F899F3B001EC85C /* CombinedRefreshProgress.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84C365491F899F3B001EC85C /* CombinedRefreshProgress.swift */; };
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84C8B3F41F89DE430053CCA6 /* DataExtensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 84C8B3F31F89DE430053CCA6 /* DataExtensions.swift */; };
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/* End PBXBuildFile section */
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@ -114,6 +115,7 @@
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848935041F62485000CEBD24 /* AccountTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AccountTests.swift; sourceTree = "<group>"; };
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848935061F62485000CEBD24 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
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848935101F62486800CEBD24 /* Account.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Account.swift; sourceTree = "<group>"; };
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84B99C9E1FAE8D3200ECDEDB /* ContainerPath.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContainerPath.swift; sourceTree = "<group>"; };
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84C365491F899F3B001EC85C /* CombinedRefreshProgress.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CombinedRefreshProgress.swift; sourceTree = "<group>"; };
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84C8B3F31F89DE430053CCA6 /* DataExtensions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DataExtensions.swift; sourceTree = "<group>"; };
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/* End PBXFileReference section */
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@ -205,6 +207,7 @@
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848935101F62486800CEBD24 /* Account.swift */,
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841974241F6DDCE4006346C4 /* AccountDelegate.swift */,
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841974001F6DD1EC006346C4 /* Folder.swift */,
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84B99C9E1FAE8D3200ECDEDB /* ContainerPath.swift */,
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84C365491F899F3B001EC85C /* CombinedRefreshProgress.swift */,
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84C8B3F31F89DE430053CCA6 /* DataExtensions.swift */,
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8419740D1F6DD25F006346C4 /* Container.swift */,
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@ -434,6 +437,7 @@
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846E77451F6EF9B900A165E2 /* Container.swift in Sources */,
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841974251F6DDCE4006346C4 /* AccountDelegate.swift in Sources */,
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846E77541F6F00E300A165E2 /* AccountManager.swift in Sources */,
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84B99C9F1FAE8D3200ECDEDB /* ContainerPath.swift in Sources */,
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846E77501F6EF9C400A165E2 /* LocalAccountRefresher.swift in Sources */,
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841974011F6DD1EC006346C4 /* Folder.swift in Sources */,
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846E774F1F6EF9C000A165E2 /* LocalAccountDelegate.swift in Sources */,
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@ -33,6 +33,7 @@ public protocol Container {
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func existingFeed(with feedID: String) -> Feed?
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func existingFeed(withURL url: String) -> Feed?
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func existingFolder(with name: String) -> Folder?
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func existingFolder(withID: Int) -> Folder?
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func postChildrenDidChangeNotification()
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}
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@ -154,6 +155,23 @@ public extension Container {
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return nil
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}
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func existingFolder(withID folderID: Int) -> Folder? {
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for child in children {
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if let folder = child as? Folder {
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if folder.folderID == folderID {
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return folder
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}
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if let subFolder = folder.existingFolder(withID: folderID) {
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return subFolder
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}
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}
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}
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return nil
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}
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func postChildrenDidChangeNotification() {
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NotificationCenter.default.post(name: .ChildrenDidChange, object: self)
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@ -0,0 +1,53 @@
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//
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// ContainerPath.swift
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// Account
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//
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// Created by Brent Simmons on 11/4/17.
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// Copyright © 2017 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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// Used to identify the parent of an object.
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// Mainly used with deleting objects and undo/redo.
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// Especially redo. The idea is to put something back in the right place.
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public struct ContainerPath {
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private weak var account: Account?
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private let names: [String] // empty if top-level of account
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private let folderID: Int? // nil if top-level
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private let isTopLevel: Bool
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// folders should be from top-level down, as in ["Cats", "Tabbies"]
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public init(account: Account, folders: [Folder]) {
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self.account = account
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self.names = folders.map { $0.nameForDisplay }
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self.isTopLevel = folders.isEmpty
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if let lastFolder = folders.last {
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self.folderID = lastFolder.folderID
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}
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}
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public func resolveContainer() -> Container? {
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// The only time it should fail is if the account no longer exists.
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// Otherwise the worst-case scenario is that it will create Folders if needed.
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guard let account = account else {
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return nil
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}
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if isTopLevel {
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return account
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}
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if let folderID = folderID, let folder = account.existingFolder(withID: folderID) {
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return folder
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}
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return account.ensureFolder(withFolderNames: names)
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}
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}
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@ -12,11 +12,12 @@ import RSCore
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public final class Folder: DisplayNameProvider, Container, UnreadCountProvider, Hashable {
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public weak var account: Account?
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public var children = [AnyObject]()
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var name: String?
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static let untitledName = NSLocalizedString("Untitled ƒ", comment: "Folder name")
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public let folderID: Int // not saved: per-run only
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static var incrementingID = 0
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public let hashValue: Int
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// MARK: - Fetching Articles
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@ -54,8 +55,12 @@ public final class Folder: DisplayNameProvider, Container, UnreadCountProvider,
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self.account = account
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self.name = name
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self.hashValue = name?.hashValue ?? Folder.untitledName.hashValue
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let folderID = Folder.incrementingID
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Folder.incrementingID += 1
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self.folderID = folderID
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self.hashValue = folderID
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NotificationCenter.default.addObserver(self, selector: #selector(unreadCountDidChange(_:)), name: .UnreadCountDidChange, object: nil)
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}
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