Two column navigation on iPad
This commit is contained in:
parent
efb96eddf3
commit
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@ -291,6 +291,7 @@
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D6E77D09286D25FA00D8B732 /* TrendingHashtagCollectionViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6E77D08286D25FA00D8B732 /* TrendingHashtagCollectionViewCell.swift */; };
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D6E77D0B286D426E00D8B732 /* TrendingLinkCardCollectionViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6E77D0A286D426E00D8B732 /* TrendingLinkCardCollectionViewCell.swift */; };
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D6E77D0D286E6B7300D8B732 /* TrendingLinkCardCollectionViewCell.xib in Resources */ = {isa = PBXBuildFile; fileRef = D6E77D0C286E6B7300D8B732 /* TrendingLinkCardCollectionViewCell.xib */; };
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D6E77D0F286F773900D8B732 /* SplitNavigationController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6E77D0E286F773900D8B732 /* SplitNavigationController.swift */; };
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D6E9CDA8281A427800BBC98E /* PostService.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6E9CDA7281A427800BBC98E /* PostService.swift */; };
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D6EAE0DB2550CC8A002DB0AC /* FocusableTextField.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6EAE0DA2550CC8A002DB0AC /* FocusableTextField.swift */; };
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D6EBF01523C55C0900AE061B /* UIApplication+Scenes.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6EBF01423C55C0900AE061B /* UIApplication+Scenes.swift */; };
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@ -645,6 +646,7 @@
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D6E77D08286D25FA00D8B732 /* TrendingHashtagCollectionViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TrendingHashtagCollectionViewCell.swift; sourceTree = "<group>"; };
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D6E77D0A286D426E00D8B732 /* TrendingLinkCardCollectionViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TrendingLinkCardCollectionViewCell.swift; sourceTree = "<group>"; };
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D6E77D0C286E6B7300D8B732 /* TrendingLinkCardCollectionViewCell.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = TrendingLinkCardCollectionViewCell.xib; sourceTree = "<group>"; };
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D6E77D0E286F773900D8B732 /* SplitNavigationController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SplitNavigationController.swift; sourceTree = "<group>"; };
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D6E9CDA7281A427800BBC98E /* PostService.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PostService.swift; sourceTree = "<group>"; };
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D6EAE0DA2550CC8A002DB0AC /* FocusableTextField.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FocusableTextField.swift; sourceTree = "<group>"; };
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D6EBF01423C55C0900AE061B /* UIApplication+Scenes.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIApplication+Scenes.swift"; sourceTree = "<group>"; };
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@ -1298,6 +1300,7 @@
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D653F410267D1E32004E32B1 /* DiffableTimelineLikeTableViewController.swift */,
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D625E4812588262A0074BB2B /* DraggableTableViewCell.swift */,
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D693DE5623FE1A6A0061E07D /* EnhancedNavigationViewController.swift */,
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D6E77D0E286F773900D8B732 /* SplitNavigationController.swift */,
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D6BC8747219738E1006163F1 /* EnhancedTableViewController.swift */,
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D693DE5823FE24300061E07D /* InteractivePushTransition.swift */,
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D6C693FB2162FE6F007D6A6D /* LoadingViewController.swift */,
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@ -1804,6 +1807,7 @@
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D662AEF2263A4BE10082A153 /* ComposePollView.swift in Sources */,
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D677284A24ECBDF400C732D3 /* ComposeCurrentAccount.swift in Sources */,
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D62D2424217ABF3F005076CC /* NSUserActivity+Extensions.swift in Sources */,
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D6E77D0F286F773900D8B732 /* SplitNavigationController.swift in Sources */,
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D6B30E09254BAF63009CAEE5 /* ImageGrayscalifier.swift in Sources */,
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D6A6C10F25B62D2400298D0F /* DiskCache.swift in Sources */,
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D6B81F3C2560365300F6E31D /* RefreshableViewController.swift in Sources */,
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@ -20,8 +20,11 @@ class MainSplitViewController: UISplitViewController {
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private var tabBarViewController: MainTabBarViewController!
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private var secondaryNavController: UINavigationController! {
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viewController(for: .secondary) as? UINavigationController
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// private var secondaryNavController: UINavigationController! {
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// viewController(for: .secondary) as? UINavigationController
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// }
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private var secondaryNavController: SplitNavigationController! {
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viewController(for: .secondary) as? SplitNavigationController
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}
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init(mastodonController: MastodonController) {
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@ -46,9 +49,10 @@ class MainSplitViewController: UISplitViewController {
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setViewController(sidebar, for: .primary)
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primaryBackgroundStyle = .sidebar
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let secondaryNav = EnhancedNavigationViewController()
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secondaryNav.useBrowserStyleNavigation = true
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setViewController(secondaryNav, for: .secondary)
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// let secondaryNav = EnhancedNavigationViewController()
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// secondaryNav.useBrowserStyleNavigation = true
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let splitNav = SplitNavigationController()
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setViewController(splitNav, for: .secondary)
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// don't unnecesarily construct a content VC unless the we're in actually split mode
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// when we change from compact -> split for the first time, the VC will be transferred anyways
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if traitCollection.horizontalSizeClass != .compact {
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@ -142,7 +142,7 @@ class MainTabBarViewController: UITabBarController, UITabBarControllerDelegate {
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return vc
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} else {
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let nav = EnhancedNavigationViewController(rootViewController: vc)
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nav.useBrowserStyleNavigation = true
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// nav.useBrowserStyleNavigation = true
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return nav
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}
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}
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@ -0,0 +1,262 @@
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//
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// SplitNavigationController.swift
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// Tusker
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//
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// Created by Shadowfacts on 7/1/22.
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// Copyright © 2022 Shadowfacts. All rights reserved.
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//
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import UIKit
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class SplitNavigationController: UIViewController {
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private let rootNav = SplitRootNavigationController()
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private let secondaryNav = SplitSecondaryNavigationController()
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private let separatorView = UIView()
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private var constraints: [NSLayoutConstraint] = []
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var viewControllers: [UIViewController] {
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get {
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return rootNav.viewControllers + secondaryNav.viewControllers
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}
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set {
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if newValue.isEmpty {
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rootNav.viewControllers = []
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secondaryNav.viewControllers = []
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} else if canShowSecondaryNav {
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var newValue = newValue
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rootNav.viewControllers = [newValue.removeFirst()]
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secondaryNav.viewControllers = newValue
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} else {
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rootNav.viewControllers = newValue
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secondaryNav.viewControllers = []
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}
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updateSecondaryNavVisibility()
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}
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}
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/// This property is only valid after the view has been laid out.
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private var canShowSecondaryNav: Bool {
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// minimum of 360pt for each column
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// this allows split navigation on all ipads in portrait w/ sidebar hidden and in landscape (regardless of sidebar)
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(viewIfLoaded?.bounds.width ?? 0) >= 720
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}
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init(rootViewController: UIViewController? = nil) {
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super.init(nibName: nil, bundle: nil)
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rootNav.showImpl = { [unowned self] vc, sender in
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if self.canShowSecondaryNav {
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self.setSecondaryViewControllers([vc], animated: true)
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// the split nav shouldn't really be reaching down into the inner VCs like this,
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// but I can't think of a cleaner way
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if let tableVC = sender as? UITableViewController,
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let selectedIndexPath = tableVC.tableView.indexPathForSelectedRow {
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tableVC.tableView.deselectRow(at: selectedIndexPath, animated: true)
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}
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} else {
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self.rootNav.pushViewController(vc, animated: true)
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}
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}
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secondaryNav.closeSecondaryImpl = { [unowned self] in
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self.popToRootViewController(animated: true)
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}
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if let rootViewController {
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rootNav.viewControllers = [rootViewController]
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}
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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embedChild(rootNav, layout: false)
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embedChild(secondaryNav, layout: false)
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rootNav.view.translatesAutoresizingMaskIntoConstraints = false
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secondaryNav.view.translatesAutoresizingMaskIntoConstraints = false
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separatorView.backgroundColor = .separator
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separatorView.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(separatorView)
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NSLayoutConstraint.activate([
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rootNav.view.topAnchor.constraint(equalTo: view.topAnchor),
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rootNav.view.bottomAnchor.constraint(equalTo: view.bottomAnchor),
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rootNav.view.leadingAnchor.constraint(equalTo: view.leadingAnchor),
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separatorView.topAnchor.constraint(equalTo: view.topAnchor),
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separatorView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
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separatorView.leadingAnchor.constraint(equalTo: rootNav.view.trailingAnchor),
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separatorView.widthAnchor.constraint(equalToConstant: 0.5),
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secondaryNav.view.topAnchor.constraint(equalTo: view.topAnchor),
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secondaryNav.view.bottomAnchor.constraint(equalTo: view.bottomAnchor),
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secondaryNav.view.leadingAnchor.constraint(equalTo: separatorView.trailingAnchor),
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])
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updateSecondaryNavVisibility()
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}
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override func show(_ vc: UIViewController, sender: Any?) {
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if !canShowSecondaryNav {
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rootNav.pushViewController(vc, animated: true)
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} else if rootNav.viewControllers.isEmpty {
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rootNav.pushViewController(vc, animated: false)
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} else {
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secondaryNav.pushViewController(vc, animated: true)
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}
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updateSecondaryNavVisibility()
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}
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override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
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super.traitCollectionDidChange(previousTraitCollection)
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}
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override func viewWillLayoutSubviews() {
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super.viewWillLayoutSubviews()
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if !isLayingOutForAnimation {
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updateSecondaryNavVisibility()
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}
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}
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private func updateSecondaryNavVisibility() {
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guard isViewLoaded else {
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return
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}
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if canShowSecondaryNav {
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if rootNav.viewControllers.count > 1 {
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var vcs = rootNav.viewControllers
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let root = vcs.removeFirst()
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rootNav.viewControllers = [root]
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// this shouldn't be necessary since the vcs are removed from their parent vc by setting rootNav.viewControllers
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// but it doesn't remove the views from their superview (until the next runloop iteration?)
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// so we need to do that ourselves before we can set them on the secondary nav (otherwise it raises an exception)
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vcs.forEach { $0.removeViewAndController() }
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secondaryNav.viewControllers = vcs
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}
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} else {
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if !secondaryNav.viewControllers.isEmpty {
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let firstSecondary = secondaryNav.viewControllers.first!
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// remove the left bar button item so that the builtin Back item shows
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if firstSecondary.navigationItem.leftBarButtonItem?.tag == ViewTags.splitNavCloseSecondaryButton {
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firstSecondary.navigationItem.leftBarButtonItem = nil
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}
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rootNav.viewControllers.append(contentsOf: secondaryNav.viewControllers)
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secondaryNav.viewControllers = []
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}
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}
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setSecondaryVisible(canShowSecondaryNav && !secondaryNav.viewControllers.isEmpty)
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}
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private func setSecondaryVisible(_ visible: Bool) {
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guard isViewLoaded else {
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return
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}
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NSLayoutConstraint.deactivate(constraints)
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if visible {
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constraints = [
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rootNav.view.trailingAnchor.constraint(equalTo: view.centerXAnchor),
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secondaryNav.view.trailingAnchor.constraint(equalTo: view.trailingAnchor),
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]
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} else {
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constraints = [
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rootNav.view.trailingAnchor.constraint(equalTo: view.trailingAnchor),
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secondaryNav.view.widthAnchor.constraint(equalTo: view.widthAnchor, multiplier: 0.5),
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]
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}
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NSLayoutConstraint.activate(constraints)
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}
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private func setSecondaryViewControllers(_ vcs: [UIViewController], animated: Bool) {
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if animated {
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if vcs.isEmpty {
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popToRootViewController(animated: true)
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} else {
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let wasVisible = !secondaryNav.viewControllers.isEmpty
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secondaryNav.viewControllers = vcs
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secondaryNav.view.frame = CGRect(x: view.bounds.width, y: 0, width: view.bounds.width / 2, height: view.bounds.height)
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secondaryNav.view.layoutIfNeeded()
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if !wasVisible {
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let animator = UIViewPropertyAnimator(duration: 0.35, curve: .easeInOut) {
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self.updateSecondaryNavVisibility()
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self.view.layoutIfNeeded()
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}
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animator.startAnimation()
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}
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}
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} else {
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secondaryNav.viewControllers = vcs
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updateSecondaryNavVisibility()
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}
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}
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private var isLayingOutForAnimation = false
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func popToRootViewController(animated: Bool) {
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if animated {
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// we don't update secondaryNav.viewControllers until after the animation is completed
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// otherwise the secondary nav's contents disappear immediately, rather than sliding off-screen
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let animator = UIViewPropertyAnimator(duration: 0.35, curve: .easeInOut) {
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self.isLayingOutForAnimation = true
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self.setSecondaryVisible(false)
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self.view.layoutIfNeeded()
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}
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animator.addCompletion { _ in
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self.secondaryNav.viewControllers = []
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self.isLayingOutForAnimation = false
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// self.updateSecondaryNavVisibility()
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}
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animator.startAnimation()
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} else {
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self.secondaryNav.viewControllers = []
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self.updateSecondaryNavVisibility()
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}
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}
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}
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private class SplitRootNavigationController: UINavigationController {
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fileprivate var showImpl: ((UIViewController, Any?) -> Void)!
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override func show(_ vc: UIViewController, sender: Any?) {
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showImpl(vc, sender)
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}
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}
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private class SplitSecondaryNavigationController: EnhancedNavigationViewController {
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fileprivate var closeSecondaryImpl: (() -> Void)!
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override var viewControllers: [UIViewController] {
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didSet {
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if let first = viewControllers.first {
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configureSecondarySplitCloseButton(for: first)
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}
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}
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}
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private func configureSecondarySplitCloseButton(for viewController: UIViewController) {
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guard viewController.navigationItem.leftBarButtonItem?.tag != ViewTags.splitNavCloseSecondaryButton else {
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return
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}
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let item = UIBarButtonItem(title: "Close", style: .done, target: self, action: #selector(closeSecondary))
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item.tag = ViewTags.splitNavCloseSecondaryButton
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viewController.navigationItem.leftBarButtonItem = item
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}
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@objc private func closeSecondary() {
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closeSecondaryImpl()
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}
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}
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@ -10,7 +10,7 @@ import UIKit
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// Based on MVCTodo by Dave DeLong: https://github.com/davedelong/MVCTodo/blob/841649dd6aa31bacda3ad7ef9a9a836f66281e50/MVCTodo/Extensions/UIViewController.swift
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extension UIViewController {
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func embedChild(_ newChild: UIViewController, in container: UIView? = nil) {
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func embedChild(_ newChild: UIViewController, in container: UIView? = nil, layout: Bool = true) {
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// if the view controller is already a child of something else, remove it
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if let oldParent = newChild.parent, oldParent != self {
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newChild.beginAppearanceTransition(false, animated: false)
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@ -36,7 +36,7 @@ extension UIViewController {
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newChild.beginAppearanceTransition(true, animated: false)
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addChild(newChild)
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newChild.didMove(toParent: self)
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targetContainer.embedSubview(newChild.view)
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targetContainer.embedSubview(newChild.view, layout: layout)
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newChild.endAppearanceTransition()
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} else {
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// the view controller is already a child
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@ -45,7 +45,7 @@ extension UIViewController {
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// we don't do the appearance transition stuff here,
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// because the vc is already a child, so *presumably*
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// that transition stuff has already appened
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targetContainer.embedSubview(newChild.view)
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targetContainer.embedSubview(newChild.view, layout: layout)
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}
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}
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@ -57,16 +57,18 @@ extension UIViewController {
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// Based on MVCTodo by Dave DeLong: https://github.com/davedelong/MVCTodo/blob/841649dd6aa31bacda3ad7ef9a9a836f66281e50/MVCTodo/Extensions/UIView.swift
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extension UIView {
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func embedSubview(_ subview: UIView) {
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func embedSubview(_ subview: UIView, layout: Bool = true) {
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if subview.superview == self { return }
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if subview.superview != nil {
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subview.removeFromSuperview()
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}
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subview.frame = bounds
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addSubview(subview)
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if layout {
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subview.frame = bounds
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NSLayoutConstraint.activate([
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subview.leadingAnchor.constraint(equalTo: leadingAnchor),
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subview.trailingAnchor.constraint(equalTo: trailingAnchor),
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@ -74,6 +76,7 @@ extension UIView {
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subview.bottomAnchor.constraint(equalTo: bottomAnchor)
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])
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}
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}
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func isContainedWithin(_ other: UIView) -> Bool {
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var current: UIView? = self
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@ -16,4 +16,5 @@ struct ViewTags {
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static let navBackBarButton = 42003
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static let navForwardBarButton = 42004
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static let navEmptyTitleView = 42005
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static let splitNavCloseSecondaryButton = 42006
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}
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