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Add ScrollingSegmentedControl, and home/notifs/profiles to use it

This commit is contained in:
Shadowfacts 2022-12-12 20:57:38 -05:00
parent 9c4b68b09e
commit 8caf93bf0a
10 changed files with 371 additions and 113 deletions
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4
Tusker.xcodeproj/project.pbxproj
View File

@ -304,6 +304,7 @@
D6D4DDDA212518A200E1C4BB /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = D6D4DDD8212518A200E1C4BB /* LaunchScreen.storyboard */; };
D6D4DDE5212518A200E1C4BB /* TuskerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D4DDE4212518A200E1C4BB /* TuskerTests.swift */; };
D6D4DDF0212518A200E1C4BB /* TuskerUITests.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D4DDEF212518A200E1C4BB /* TuskerUITests.swift */; };
D6D706A029466649000827ED /* ScrollingSegmentedControl.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D7069F29466649000827ED /* ScrollingSegmentedControl.swift */; };
D6DD2A3F273C1F4900386A6C /* ComposeAttachmentImage.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6DD2A3E273C1F4900386A6C /* ComposeAttachmentImage.swift */; };
D6DD2A45273D6C5700386A6C /* GIFImageView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6DD2A44273D6C5700386A6C /* GIFImageView.swift */; };
D6DD353D22F28CD000A9563A /* ContentWarningCopyMode.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6DD353C22F28CD000A9563A /* ContentWarningCopyMode.swift */; };
@ -696,6 +697,7 @@
D6D4DDEB212518A200E1C4BB /* TuskerUITests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = TuskerUITests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
D6D4DDEF212518A200E1C4BB /* TuskerUITests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TuskerUITests.swift; sourceTree = "<group>"; };
D6D4DDF1212518A200E1C4BB /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
D6D7069F29466649000827ED /* ScrollingSegmentedControl.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ScrollingSegmentedControl.swift; sourceTree = "<group>"; };
D6DD2A3E273C1F4900386A6C /* ComposeAttachmentImage.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ComposeAttachmentImage.swift; sourceTree = "<group>"; };
D6DD2A44273D6C5700386A6C /* GIFImageView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GIFImageView.swift; sourceTree = "<group>"; };
D6DD353C22F28CD000A9563A /* ContentWarningCopyMode.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentWarningCopyMode.swift; sourceTree = "<group>"; };
@ -1364,6 +1366,7 @@
D673ACCD2919E74200D6F8B0 /* MenuPicker.swift */,
D68E6F58253C9969001A1B4C /* MultiSourceEmojiLabel.swift */,
D627943A23A55BA600D38C68 /* NavigableTableViewCell.swift */,
D6D7069F29466649000827ED /* ScrollingSegmentedControl.swift */,
D627943123A5466600D38C68 /* SelectableTableViewCell.swift */,
D620483723D38190008A63EF /* StatusContentTextView.swift */,
04ED00B021481ED800567C53 /* SteppedProgressView.swift */,
@ -2043,6 +2046,7 @@
D626493823C0FD0000612E6E /* AllPhotosTableViewCell.swift in Sources */,
D627943B23A55BA600D38C68 /* NavigableTableViewCell.swift in Sources */,
D6333B792139AEFD00CE884A /* Date+TimeAgo.swift in Sources */,
D6D706A029466649000827ED /* ScrollingSegmentedControl.swift in Sources */,
D653F411267D1E32004E32B1 /* DiffableTimelineLikeTableViewController.swift in Sources */,
D6C82B5625C5F3F20017F1E6 /* ExpandThreadTableViewCell.swift in Sources */,
D686BBE324FBF8110068E6AA /* WrappedProgressView.swift in Sources */,

26
Tusker/Screens/Notifications/NotificationsPageViewController.swift
View File

@ -9,7 +9,7 @@
import UIKit
import Pachyderm
class NotificationsPageViewController: SegmentedPageViewController {
class NotificationsPageViewController: SegmentedPageViewController<NotificationsPageViewController.Page> {
private let notificationsTitle = NSLocalizedString("Notifications", comment: "notifications tab title")
private let mentionsTitle = NSLocalizedString("Mentions", comment: "mentions tab title")
@ -30,12 +30,9 @@ class NotificationsPageViewController: SegmentedPageViewController {
mentions.title = mentionsTitle
mentions.userActivity = UserActivityManager.checkNotificationsActivity(mode: .mentionsOnly)
super.init(titles: [
notificationsTitle,
mentionsTitle
], pageControllers: [
notifications,
mentions
super.init(pages: [
(.all, notificationsTitle, notifications),
(.mentions, mentionsTitle, mentions),
])
title = notificationsTitle
@ -53,15 +50,20 @@ class NotificationsPageViewController: SegmentedPageViewController {
}
func selectMode(_ mode: NotificationsMode) {
let index: Int
let page: Page
switch mode {
case .allNotifications:
index = 0
page = .all
case .mentionsOnly:
index = 1
page = .mentions
}
segmentedControl.selectedSegmentIndex = index
selectPage(at: index, animated: false)
segmentedControl.setSelectedOption(page, animated: false)
selectPage(page, animated: false)
}
enum Page {
case all
case mentions
}
}

2
Tusker/Screens/Profile/ProfileStatusesViewController.swift
View File

@ -142,7 +142,7 @@ class ProfileStatusesViewController: UIViewController, TimelineLikeCollectionVie
let view = ProfileHeaderView.create()
view.delegate = self.profileHeaderDelegate
view.updateUI(for: id)
view.pagesSegmentedControl.selectedSegmentIndex = self.owner?.currentIndex ?? 0
view.pagesSegmentedControl.setSelectedOption(self.owner!.currentPage, animated: false)
cell.addHeader(view)
case .useExistingView(let view):
cell.addHeader(view)

21
Tusker/Screens/Profile/ProfileViewController.swift
View File

@ -29,7 +29,11 @@ class ProfileViewController: UIViewController {
}
private(set) var currentIndex: Int!
private let pages = [Page.posts, .postsAndReplies, .media]
private var pageControllers: [ProfileStatusesViewController]!
var currentPage: Page {
pages[currentIndex]
}
var currentViewController: ProfileStatusesViewController {
pageControllers[currentIndex]
}
@ -283,6 +287,14 @@ class ProfileViewController: UIViewController {
}
}
extension ProfileViewController {
enum Page: Hashable {
case posts
case postsAndReplies
case media
}
}
extension ProfileViewController {
enum State {
case idle
@ -298,24 +310,25 @@ extension ProfileViewController: ToastableViewController {
}
extension ProfileViewController: ProfileHeaderViewDelegate {
func profileHeader(_ headerView: ProfileHeaderView, selectedPostsIndexChangedTo newIndex: Int) {
func profileHeader(_ headerView: ProfileHeaderView, selectedPageChangedTo newPage: Page) {
guard case .idle = state else {
headerView.pagesSegmentedControl.setSelectedOption(currentPage, animated: false)
return
}
selectPage(at: newIndex, animated: true)
selectPage(at: pages.firstIndex(of: newPage)!, animated: true)
}
}
extension ProfileViewController: TabbedPageViewController {
func selectNextPage() {
guard currentIndex < pageControllers.count - 1 else { return }
currentViewController.headerCell?.view?.pagesSegmentedControl.selectedSegmentIndex = currentIndex + 1
currentViewController.headerCell?.view?.pagesSegmentedControl.setSelectedOption(pages[currentIndex + 1], animated: true)
selectPage(at: currentIndex + 1, animated: true)
}
func selectPrevPage() {
guard currentIndex > 0 else { return }
currentViewController.headerCell?.view?.pagesSegmentedControl.selectedSegmentIndex = currentIndex - 1
currentViewController.headerCell?.view?.pagesSegmentedControl.setSelectedOption(pages[currentIndex - 1], animated: true)
selectPage(at: currentIndex - 1, animated: true)
}
}

32
Tusker/Screens/Timeline/TimelinesPageViewController.swift
View File

@ -9,7 +9,7 @@
import UIKit
import SwiftUI
class TimelinesPageViewController: SegmentedPageViewController {
class TimelinesPageViewController: SegmentedPageViewController<TimelinesPageViewController.Page> {
private let homeTitle = NSLocalizedString("Home", comment: "home timeline tab title")
private let federatedTitle = NSLocalizedString("Federated", comment: "federated timeline tab title")
@ -29,14 +29,10 @@ class TimelinesPageViewController: SegmentedPageViewController {
let local = TimelineViewController(for: .public(local: true), mastodonController: mastodonController)
local.title = localTitle
super.init(titles: [
homeTitle,
federatedTitle,
localTitle
], pageControllers: [
home,
federated,
local
super.init(pages: [
(.home, "Home", home),
(.local, "Local", local),
(.federated, "Federated", federated),
])
title = homeTitle
@ -75,24 +71,30 @@ class TimelinesPageViewController: SegmentedPageViewController {
guard let timeline = UserActivityManager.getTimeline(from: activity) else {
return
}
let index: Int
let page: Page
switch timeline {
case .home:
index = 0
page = .home
case .public(local: false):
index = 1
page = .federated
case .public(local: true):
index = 2
page = .local
default:
return
}
selectPage(at: index, animated: false)
let timelineVC = pageControllers[index] as! TimelineViewController
selectPage(page, animated: false)
let timelineVC = pageControllers[currentIndex] as! TimelineViewController
timelineVC.restoreActivity(activity)
}
@objc private func filtersPressed() {
present(UIHostingController(rootView: FiltersView(mastodonController: mastodonController)), animated: true)
}
enum Page: Hashable {
case home
case local
case federated
}
}

92
Tusker/Screens/Utilities/SegmentedPageViewController.swift
View File

@ -8,33 +8,45 @@
import UIKit
class SegmentedPageViewController: UIPageViewController, UIPageViewControllerDelegate {
class SegmentedPageViewController<Page: Hashable>: UIPageViewController, UIPageViewControllerDelegate, TabbedPageViewController {
let titles: [String]
let pages: [Page]
let pageControllers: [UIViewController]
private var initialIndex = 0
private(set) var currentIndex = 0
private var initialPage: Page
private var currentPage: Page
var currentIndex: Int {
pages.firstIndex(of: currentPage)!
}
var segmentedControl: UISegmentedControl!
let segmentedControl = ScrollingSegmentedControl<Page>()
init(titles: [String], pageControllers: [UIViewController]) {
precondition(!pageControllers.isEmpty)
init(pages: [(Page, String, UIViewController)]) {
precondition(!pages.isEmpty)
self.titles = titles
self.pageControllers = pageControllers
self.pages = pages.map(\.0)
self.pageControllers = pages.map(\.2)
initialPage = self.pages.first!
currentPage = self.pages.first!
super.init(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
self.delegate = self
// this needs to happen in init because EnhancedNavigationViewController expects to be able to look at the titleView
// before the view has necessarily loaded
segmentedControl = UISegmentedControl(items: titles)
segmentedControl.addTarget(self, action: #selector(segmentedControlChanged), for: .valueChanged)
segmentedControl.options = pages.map {
.init(value: $0.0, name: $0.1)
}
segmentedControl.didSelectOption = { [unowned self] option in
if let option {
self.selectPage(option, animated: true)
}
}
// TODO: double check this with the custom segmented control
// the segemented control itself is only focusable when VoiceOver is in Group navigation mode,
// so make it clear that to switch tabs the user needs to enter the group
segmentedControl.accessibilityHint = "Enter group to select timeline"
segmentedControl.setSelectedOption(segmentedControl.options.first!.value, animated: false)
navigationItem.titleView = segmentedControl
}
@ -47,7 +59,7 @@ class SegmentedPageViewController: UIPageViewController, UIPageViewControllerDel
view.backgroundColor = .systemBackground
selectPage(at: initialIndex, animated: false)
selectPage(initialPage, animated: false)
addKeyCommand(MenuController.prevSubTabCommand)
addKeyCommand(MenuController.nextSubTabCommand)
@ -60,28 +72,36 @@ class SegmentedPageViewController: UIPageViewController, UIPageViewControllerDel
}
}
func selectPage(at index: Int, animated: Bool) {
func selectPage(_ page: Page, animated: Bool) {
guard pages.contains(page) else {
fatalError("invalid page \(page) that is not in SegmentedPageViewController.pages")
}
guard isViewLoaded else {
initialIndex = index
initialPage = page
return
}
let direction: UIPageViewController.NavigationDirection = index - currentIndex > 0 ? .forward : .reverse
setViewControllers([pageControllers[index]], direction: direction, animated: animated)
navigationItem.title = pageControllers[index].title
currentIndex = index
segmentedControl.selectedSegmentIndex = index
let prevIndex = currentIndex
currentPage = page
let index = pages.firstIndex(of: page)!
let newController = pageControllers[index]
let direction: UIPageViewController.NavigationDirection = index - prevIndex > 0 ? .forward : .reverse
setViewControllers([newController], direction: direction, animated: animated)
navigationItem.title = newController.title
segmentedControl.setSelectedOption(page, animated: animated)
}
@objc func segmentedControlChanged() {
selectPage(at: segmentedControl.selectedSegmentIndex, animated: true)
UIImpactFeedbackGenerator(style: .light).impactOccurred()
// MARK: TabbedPageViewController
func selectNextPage() {
guard currentIndex < pageControllers.count - 1 else { return }
selectPage(pages[currentIndex + 1], animated: true)
}
// MARK: - Page View Controller Delegate
func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
currentIndex = pageControllers.firstIndex(of: viewControllers!.first!)!
segmentedControl.selectedSegmentIndex = currentIndex
navigationItem.title = viewControllers!.first!.title
func selectPrevPage() {
guard currentIndex > 0 else { return }
selectPage(pages[currentIndex - 1], animated: true)
}
}
@ -94,18 +114,6 @@ extension SegmentedPageViewController: TabBarScrollableViewController {
}
}
extension SegmentedPageViewController: TabbedPageViewController {
func selectNextPage() {
guard currentIndex < pageControllers.count - 1 else { return }
selectPage(at: currentIndex + 1, animated: true)
}
func selectPrevPage() {
guard currentIndex > 0 else { return }
selectPage(at: currentIndex - 1, animated: true)
}
}
extension SegmentedPageViewController: BackgroundableViewController {
func sceneDidEnterBackground() {
if let current = pageControllers[currentIndex] as? BackgroundableViewController {

17
Tusker/Shortcuts/UserActivityManager.swift
View File

@ -217,20 +217,19 @@ class UserActivityManager {
switch timeline {
case .home, .public(true), .public(false):
navigationController.popToRootViewController(animated: false)
let rootController = navigationController.viewControllers.first! as! SegmentedPageViewController
let index: Int
let rootController = navigationController.viewControllers.first! as! TimelinesPageViewController
let page: TimelinesPageViewController.Page
switch timeline {
case .home:
index = 0
case .public(false):
index = 1
case .public(true):
index = 2
page = .home
case .public(local: false):
page = .federated
case .public(local: true):
page = .local
default:
fatalError()
}
rootController.segmentedControl.selectedSegmentIndex = index
rootController.selectPage(at: index, animated: false)
rootController.selectPage(page, animated: false)
default:
let timeline = TimelineViewController(for: timeline, mastodonController: mastodonController)
navigationController.pushViewController(timeline, animated: false)

26
Tusker/Views/Profile Header/ProfileHeaderView.swift
View File

@ -11,7 +11,7 @@ import Pachyderm
import Combine
protocol ProfileHeaderViewDelegate: TuskerNavigationDelegate, MenuActionProvider {
func profileHeader(_ headerView: ProfileHeaderView, selectedPostsIndexChangedTo newIndex: Int)
func profileHeader(_ headerView: ProfileHeaderView, selectedPageChangedTo newPage: ProfileViewController.Page)
}
class ProfileHeaderView: UIView {
@ -35,10 +35,11 @@ class ProfileHeaderView: UIView {
@IBOutlet weak var displayNameLabel: EmojiLabel!
@IBOutlet weak var usernameLabel: UILabel!
@IBOutlet weak var lockImageView: UIImageView!
@IBOutlet weak var vStack: UIStackView!
@IBOutlet weak var relationshipLabel: UILabel!
@IBOutlet weak var noteTextView: StatusContentTextView!
@IBOutlet weak var fieldsView: ProfileFieldsView!
@IBOutlet weak var pagesSegmentedControl: UISegmentedControl!
private(set) var pagesSegmentedControl: ScrollingSegmentedControl<ProfileViewController.Page>!
var accountID: String!
@ -83,6 +84,22 @@ class ProfileHeaderView: UIView {
noteTextView.defaultFont = .preferredFont(forTextStyle: .body)
noteTextView.adjustsFontForContentSizeCategory = true
pagesSegmentedControl = ScrollingSegmentedControl(frame: .zero)
pagesSegmentedControl.options = [
.init(value: .posts, name: "Posts"),
.init(value: .postsAndReplies, name: "Posts and Replies"),
.init(value: .media, name: "Media"),
]
pagesSegmentedControl.setSelectedOption(.posts, animated: false)
pagesSegmentedControl.didSelectOption = { [unowned self] newPage in
if let newPage {
self.delegate?.profileHeader(self, selectedPageChangedTo: newPage)
}
}
vStack.addArrangedSubview(pagesSegmentedControl)
// equal inset on both sides, the leading inset is applied to the vStack
pagesSegmentedControl.widthAnchor.constraint(equalTo: vStack.widthAnchor, constant: -16).isActive = true
// the segemented control itself is only focusable when VoiceOver is in Group navigation mode,
// so make it clear that to switch tabs the user needs to enter the group
pagesSegmentedControl.accessibilityHint = "Enter group to select scope"
@ -264,11 +281,6 @@ class ProfileHeaderView: UIView {
delegate?.showLoadingLargeImage(url: header, cache: .headers, description: nil, animatingFrom: headerImageView)
}
@IBAction func postsSegmentedControlChanged(_ sender: UISegmentedControl) {
delegate?.profileHeader(self, selectedPostsIndexChangedTo: sender.selectedSegmentIndex)
UIImpactFeedbackGenerator(style: .light).impactOccurred()
}
}
extension ProfileHeaderView: UIPointerInteractionDelegate {

36
Tusker/Views/Profile Header/ProfileHeaderView.xib
View File

@ -69,42 +69,22 @@
<nil key="highlightedColor"/>
</label>
<textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" horizontalHuggingPriority="249" verticalHuggingPriority="251" horizontalCompressionResistancePriority="749" scrollEnabled="NO" delaysContentTouches="NO" editable="NO" textAlignment="natural" selectable="NO" translatesAutoresizingMaskIntoConstraints="NO" id="1O8-2P-Gbf" customClass="StatusContentTextView" customModule="Tusker" customModuleProvider="target">
<rect key="frame" x="0.0" y="0.0" width="382" height="259.5"/>
<rect key="frame" x="0.0" y="0.0" width="382" height="460"/>
<string key="text">Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.</string>
<color key="textColor" systemColor="labelColor"/>
<fontDescription key="fontDescription" type="system" pointSize="17"/>
<textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
</textView>
<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="vKC-m1-Sbs" customClass="ProfileFieldsView" customModule="Tusker" customModuleProvider="target">
<rect key="frame" x="0.0" y="267.5" width="398" height="128"/>
<rect key="frame" x="0.0" y="468" width="398" height="128"/>
<color key="backgroundColor" systemColor="systemBackgroundColor"/>
<constraints>
<constraint firstAttribute="height" constant="128" placeholder="YES" id="xbR-M6-H0I"/>
</constraints>
</view>
<segmentedControl opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="top" segmentControlStyle="plain" selectedSegmentIndex="0" translatesAutoresizingMaskIntoConstraints="NO" id="n1M-vM-Cj0">
<rect key="frame" x="0.0" y="403.5" width="382" height="185"/>
<segments>
<segment title="Posts"/>
<segment title="Posts and Replies"/>
<segment title="Media"/>
</segments>
<connections>
<action selector="postsSegmentedControlChanged:" destination="iN0-l3-epB" eventType="valueChanged" id="D6y-ZM-DwU"/>
</connections>
</segmentedControl>
<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="5ja-fK-Fqz">
<rect key="frame" x="0.0" y="595.5" width="398" height="0.5"/>
<color key="backgroundColor" systemColor="separatorColor"/>
<constraints>
<constraint firstAttribute="height" constant="0.5" id="VwS-gV-q8M"/>
</constraints>
</view>
</subviews>
<constraints>
<constraint firstItem="vKC-m1-Sbs" firstAttribute="width" secondItem="u4P-3i-gEq" secondAttribute="width" id="0dI-ax-7eI"/>
<constraint firstItem="n1M-vM-Cj0" firstAttribute="width" secondItem="u4P-3i-gEq" secondAttribute="width" constant="-16" id="9Ds-zl-acc"/>
<constraint firstItem="5ja-fK-Fqz" firstAttribute="width" secondItem="u4P-3i-gEq" secondAttribute="width" id="azv-le-93y"/>
<constraint firstItem="1O8-2P-Gbf" firstAttribute="width" secondItem="u4P-3i-gEq" secondAttribute="width" constant="-16" id="hnA-3G-B9B"/>
</constraints>
</stackView>
@ -124,6 +104,13 @@
</imageView>
</subviews>
</stackView>
<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="5ja-fK-Fqz">
<rect key="frame" x="16" y="861.5" width="398" height="0.5"/>
<color key="backgroundColor" systemColor="separatorColor"/>
<constraints>
<constraint firstAttribute="height" constant="0.5" id="VwS-gV-q8M"/>
</constraints>
</view>
</subviews>
<viewLayoutGuide key="safeArea" id="vUN-kp-3ea"/>
<color key="backgroundColor" systemColor="systemBackgroundColor"/>
@ -133,9 +120,11 @@
<constraint firstItem="wT9-2J-uSY" firstAttribute="centerY" secondItem="dgG-dR-lSv" secondAttribute="bottom" id="7gb-T3-Xe7"/>
<constraint firstItem="vcl-Gl-kXl" firstAttribute="top" secondItem="dgG-dR-lSv" secondAttribute="bottom" constant="8" symbolic="YES" id="7ss-Mf-YYH"/>
<constraint firstItem="vcl-Gl-kXl" firstAttribute="leading" secondItem="wT9-2J-uSY" secondAttribute="trailing" constant="8" id="8ho-WU-MxW"/>
<constraint firstItem="vUN-kp-3ea" firstAttribute="bottom" secondItem="5ja-fK-Fqz" secondAttribute="bottom" id="9ZS-Ey-eKd"/>
<constraint firstItem="jwU-EH-hmC" firstAttribute="top" secondItem="vcl-Gl-kXl" secondAttribute="bottom" id="9lx-Fn-M0U"/>
<constraint firstItem="vUN-kp-3ea" firstAttribute="bottom" secondItem="u4P-3i-gEq" secondAttribute="bottom" id="9zc-N2-mfI"/>
<constraint firstItem="bRJ-Xf-kc9" firstAttribute="bottom" secondItem="dgG-dR-lSv" secondAttribute="bottom" constant="-8" id="AXS-bG-20Q"/>
<constraint firstAttribute="trailing" secondItem="5ja-fK-Fqz" secondAttribute="trailing" id="EMk-dp-yJV"/>
<constraint firstItem="jwU-EH-hmC" firstAttribute="bottom" relation="greaterThanOrEqual" secondItem="TkY-oK-if4" secondAttribute="bottom" id="HBR-rg-RxO"/>
<constraint firstItem="dgG-dR-lSv" firstAttribute="leading" secondItem="vUN-kp-3ea" secondAttribute="leading" id="VD1-yc-KSa"/>
<constraint firstItem="wT9-2J-uSY" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="16" id="WNS-AR-ff2"/>
@ -143,6 +132,7 @@
<constraint firstItem="vUN-kp-3ea" firstAttribute="trailing" secondItem="vcl-Gl-kXl" secondAttribute="trailing" constant="16" id="e38-Od-kPg"/>
<constraint firstItem="u4P-3i-gEq" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="16" id="hgl-UR-o3W"/>
<constraint firstItem="vUN-kp-3ea" firstAttribute="trailing" secondItem="dgG-dR-lSv" secondAttribute="trailing" id="j0d-hY-815"/>
<constraint firstItem="5ja-fK-Fqz" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="16" id="jPG-WM-9km"/>
<constraint firstItem="jwU-EH-hmC" firstAttribute="leading" secondItem="wT9-2J-uSY" secondAttribute="trailing" constant="8" id="oGR-6M-gdd"/>
<constraint firstAttribute="trailing" secondItem="u4P-3i-gEq" secondAttribute="trailing" id="ph6-NT-A02"/>
<constraint firstItem="u4P-3i-gEq" firstAttribute="top" secondItem="wT9-2J-uSY" secondAttribute="bottom" priority="999" constant="8" id="tKQ-6d-Z55"/>
@ -157,9 +147,9 @@
<outlet property="lockImageView" destination="KNY-GD-beC" id="9EJ-iM-Eos"/>
<outlet property="moreButton" destination="bRJ-Xf-kc9" id="zIN-pz-L7y"/>
<outlet property="noteTextView" destination="1O8-2P-Gbf" id="yss-zZ-uQ5"/>
<outlet property="pagesSegmentedControl" destination="n1M-vM-Cj0" id="TCU-ku-YZN"/>
<outlet property="relationshipLabel" destination="UF8-nI-KVj" id="dTe-DQ-eJV"/>
<outlet property="usernameLabel" destination="1C3-Pd-QiL" id="57b-LQ-3pM"/>
<outlet property="vStack" destination="u4P-3i-gEq" id="EUC-d2-cQC"/>
</connections>
<point key="canvasLocation" x="-590" y="117"/>
</view>

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Tusker/Views/ScrollingSegmentedControl.swift Normal file
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//
// ScrollingSegmentedControl.swift
// Tusker
//
// Created by Shadowfacts on 12/11/22.
// Copyright © 2022 Shadowfacts. All rights reserved.
//
import UIKit
class ScrollingSegmentedControl<Value: Hashable>: UIScrollView, UIGestureRecognizerDelegate, UIPointerInteractionDelegate {
private(set) var selectedOption: Value?
var options: [Option] = [] {
didSet {
createOptionViews()
}
}
var didSelectOption: ((Value?) -> Void)?
private let optionsStack = UIStackView()
private let selectedIndicatorView = UIView()
private var selectedIndicatorViewAlignmentConstraints: [NSLayoutConstraint] = []
private var changeSelectionPanRecognizer: UIGestureRecognizer!
private var selectedOptionAtStartOfPan: Value?
private lazy var selectionChangedFeedbackGenerator = UISelectionFeedbackGenerator()
override var intrinsicContentSize: CGSize {
let buttonWidths = optionsStack.arrangedSubviews.map(\.intrinsicContentSize.width).reduce(0, +)
let spacing = (CGFloat(optionsStack.arrangedSubviews.count) - 1) * 8
// add 16 to account for the spacing around optionsStack
return CGSize(width: buttonWidths + spacing + 16, height: 44)
}
override init(frame: CGRect) {
super.init(frame: frame)
showsHorizontalScrollIndicator = false
optionsStack.axis = .horizontal
optionsStack.spacing = 8
optionsStack.distribution = .fillProportionally
optionsStack.translatesAutoresizingMaskIntoConstraints = false
addSubview(optionsStack)
NSLayoutConstraint.activate([
optionsStack.leadingAnchor.constraint(equalTo: contentLayoutGuide.leadingAnchor, constant: 8),
optionsStack.trailingAnchor.constraint(equalTo: contentLayoutGuide.trailingAnchor, constant: -8),
optionsStack.topAnchor.constraint(equalTo: contentLayoutGuide.topAnchor),
optionsStack.bottomAnchor.constraint(equalTo: contentLayoutGuide.bottomAnchor),
optionsStack.heightAnchor.constraint(equalTo: heightAnchor),
// add 16 to account for the spacing around optionsStack
widthAnchor.constraint(lessThanOrEqualTo: optionsStack.widthAnchor, constant: 16),
])
let panRecognizer = UIPanGestureRecognizer(target: self, action: #selector(panRecognized))
self.changeSelectionPanRecognizer = panRecognizer
panRecognizer.delegate = self
optionsStack.addGestureRecognizer(panRecognizer)
optionsStack.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(optionTapped)))
optionsStack.addInteraction(UIPointerInteraction(delegate: self))
self.panGestureRecognizer.delegate = self
selectedIndicatorView.isHidden = true
selectedIndicatorView.backgroundColor = .tintColor
selectedIndicatorView.translatesAutoresizingMaskIntoConstraints = false
addSubview(selectedIndicatorView)
NSLayoutConstraint.activate([
selectedIndicatorView.heightAnchor.constraint(equalToConstant: 4),
selectedIndicatorView.bottomAnchor.constraint(equalTo: contentLayoutGuide.bottomAnchor),
])
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
private func createOptionViews() {
optionsStack.arrangedSubviews.forEach { $0.removeFromSuperview() }
for (index, option) in options.enumerated() {
let label = UILabel()
label.text = option.name
label.font = .preferredFont(forTextStyle: .headline)
label.adjustsFontForContentSizeCategory = true
label.textColor = .secondaryLabel
label.textAlignment = .center
label.accessibilityTraits = .button
label.accessibilityLabel = "\(option.name), \(index + 1) of \(options.count)"
optionsStack.addArrangedSubview(label)
}
}
func setSelectedOption(_ value: Value, animated: Bool) {
guard selectedOption != value,
options.contains(where: { $0.value == value }) else {
return
}
if selectedOption != nil {
selectionChangedFeedbackGenerator.selectionChanged()
}
selectedOption = value
didSelectOption?(value)
updateSelectedIndicatorView()
if animated && !selectedIndicatorView.isHidden {
let animator = UIViewPropertyAnimator(duration: 0.4, dampingRatio: 0.8) {
self.layoutIfNeeded()
}
animator.startAnimation()
}
}
private func updateSelectedIndicatorView() {
guard let selectedOption,
let selectedIndex = options.firstIndex(where: { $0.value == selectedOption }) else {
selectedIndicatorView.isHidden = true
return
}
let selectedOptionView = optionsStack.arrangedSubviews[selectedIndex]
selectedIndicatorView.isHidden = false
NSLayoutConstraint.deactivate(selectedIndicatorViewAlignmentConstraints)
selectedIndicatorViewAlignmentConstraints = [
selectedIndicatorView.leadingAnchor.constraint(equalTo: selectedOptionView.leadingAnchor),
selectedIndicatorView.trailingAnchor.constraint(equalTo: selectedOptionView.trailingAnchor),
]
NSLayoutConstraint.activate(selectedIndicatorViewAlignmentConstraints)
for (index, optionView) in optionsStack.arrangedSubviews.enumerated() {
let label = optionView as! UILabel
label.textColor = index == selectedIndex ? .label : .secondaryLabel
label.accessibilityTraits = index == selectedIndex ? [.button, .selected] : .button
}
}
// MARK: Interaction
override func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
let beganOnSelectedOption: Bool
if let selectedIndex = options.firstIndex(where: { $0.value == selectedOption }),
optionsStack.arrangedSubviews[selectedIndex].frame.contains(self.panGestureRecognizer.location(in: optionsStack)) {
beganOnSelectedOption = true
} else {
beganOnSelectedOption = false
}
// only begin changing selection if the gesutre started on the currently selected item
// otherwise, let the scroll view handle things
if gestureRecognizer == self.changeSelectionPanRecognizer {
return beganOnSelectedOption
} else {
return !beganOnSelectedOption
}
}
@objc private func panRecognized(_ recognizer: UIPanGestureRecognizer) {
let horizontalLocationInStack = CGPoint(x: recognizer.location(in: optionsStack).x, y: 0)
switch recognizer.state {
case .began:
selectedOptionAtStartOfPan = selectedOption
selectionChangedFeedbackGenerator.prepare()
case .changed:
if updateSelectionFor(location: horizontalLocationInStack) {
selectionChangedFeedbackGenerator.prepare()
}
case .ended:
if let selectedOptionAtStartOfPan {
self.selectedOptionAtStartOfPan = nil
if let selectedOption,
selectedOptionAtStartOfPan != selectedOption {
didSelectOption?(selectedOption)
}
}
default:
break
}
}
@objc private func optionTapped(_ recognizer: UITapGestureRecognizer) {
let location = recognizer.location(in: optionsStack)
if updateSelectionFor(location: location) {
didSelectOption?(selectedOption!)
}
}
private func updateSelectionFor(location: CGPoint) -> Bool {
for (index, optionView) in optionsStack.arrangedSubviews.enumerated() where optionView.frame.contains(location) {
if selectedOption != options[index].value {
selectedOption = options[index].value
let animator = UIViewPropertyAnimator(duration: 0.4, dampingRatio: 0.8) {
self.updateSelectedIndicatorView()
self.scrollRectToVisible(optionView.frame.insetBy(dx: -16, dy: 0), animated: false)
self.layoutIfNeeded()
}
animator.startAnimation()
selectionChangedFeedbackGenerator.selectionChanged()
return true
} else {
return false
}
}
return false
}
func pointerInteraction(_ interaction: UIPointerInteraction, regionFor request: UIPointerRegionRequest, defaultRegion: UIPointerRegion) -> UIPointerRegion? {
func distanceToAnyEdge(_ view: UIView) -> CGFloat {
min(abs(view.frame.minX - request.location.x), abs(view.frame.maxX - request.location.x))
}
let (view, index, _) = optionsStack.arrangedSubviews.enumerated().map { ($0.1, $0.0, distanceToAnyEdge($0.1)) }.min(by: { $0.2 < $1.2 })!
return UIPointerRegion(rect: view.frame.insetBy(dx: -8, dy: 0), identifier: index)
}
func pointerInteraction(_ interaction: UIPointerInteraction, styleFor region: UIPointerRegion) -> UIPointerStyle? {
let index = region.identifier as! Int
let optionView = optionsStack.arrangedSubviews[index]
return UIPointerStyle(effect: .hover(UITargetedPreview(view: optionView)))
}
struct Option: Hashable {
let value: Value
let name: String
}
}