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Add multi-image gallery 

Closes #18
This commit is contained in:
Shadowfacts 2019-06-14 17:23:03 -07:00
parent 0abc28900c
commit e6c6293c10
Signed by untrusted user: shadowfacts
GPG Key ID: 83FB3304046BADA4
14 changed files with 552 additions and 55 deletions
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44
Tusker.xcodeproj/project.pbxproj
View File

@ -7,10 +7,15 @@
objects = {
/* Begin PBXBuildFile section */
0411610022B442870030A9B7 /* AttachmentViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 041160FE22B442870030A9B7 /* AttachmentViewController.swift */; };
0411610122B442870030A9B7 /* AttachmentViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = 041160FF22B442870030A9B7 /* AttachmentViewController.xib */; };
04496BD721625361001F1B23 /* ContentLabel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04496BD621625361001F1B23 /* ContentLabel.swift */; };
0450531F22B0097E00100BA2 /* Timline+UI.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0450531E22B0097E00100BA2 /* Timline+UI.swift */; };
0454DDAF22B462EF00B8BB8E /* GalleryExpandAnimationController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0454DDAE22B462EF00B8BB8E /* GalleryExpandAnimationController.swift */; };
0454DDB122B467AA00B8BB8E /* GalleryShrinkAnimationController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0454DDB022B467AA00B8BB8E /* GalleryShrinkAnimationController.swift */; };
0461A3902163CBAE00C0A807 /* Cache.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0461A38F2163CBAE00C0A807 /* Cache.framework */; };
0461A3912163CBAE00C0A807 /* Cache.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 0461A38F2163CBAE00C0A807 /* Cache.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
04D14BB022B34A2800642648 /* GalleryViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04D14BAE22B34A2800642648 /* GalleryViewController.swift */; };
04DACE8C212CB14B009840C4 /* MainTabBarViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04DACE8B212CB14B009840C4 /* MainTabBarViewController.swift */; };
04DACE8E212CC7CC009840C4 /* ImageCache.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04DACE8D212CC7CC009840C4 /* ImageCache.swift */; };
04ED00B121481ED800567C53 /* SteppedProgressView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04ED00B021481ED800567C53 /* SteppedProgressView.swift */; };
@ -235,9 +240,14 @@
/* End PBXCopyFilesBuildPhase section */
/* Begin PBXFileReference section */
041160FE22B442870030A9B7 /* AttachmentViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AttachmentViewController.swift; sourceTree = "<group>"; };
041160FF22B442870030A9B7 /* AttachmentViewController.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = AttachmentViewController.xib; sourceTree = "<group>"; };
04496BD621625361001F1B23 /* ContentLabel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentLabel.swift; sourceTree = "<group>"; };
0450531E22B0097E00100BA2 /* Timline+UI.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Timline+UI.swift"; sourceTree = "<group>"; };
0454DDAE22B462EF00B8BB8E /* GalleryExpandAnimationController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GalleryExpandAnimationController.swift; sourceTree = "<group>"; };
0454DDB022B467AA00B8BB8E /* GalleryShrinkAnimationController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GalleryShrinkAnimationController.swift; sourceTree = "<group>"; };
0461A38F2163CBAE00C0A807 /* Cache.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = Cache.framework; sourceTree = BUILT_PRODUCTS_DIR; };
04D14BAE22B34A2800642648 /* GalleryViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GalleryViewController.swift; sourceTree = "<group>"; };
04DACE8B212CB14B009840C4 /* MainTabBarViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainTabBarViewController.swift; sourceTree = "<group>"; };
04DACE8D212CC7CC009840C4 /* ImageCache.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ImageCache.swift; sourceTree = "<group>"; };
04ED00B021481ED800567C53 /* SteppedProgressView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SteppedProgressView.swift; sourceTree = "<group>"; };
@ -455,6 +465,33 @@
/* End PBXFrameworksBuildPhase section */
/* Begin PBXGroup section */
0411610422B4571E0030A9B7 /* Attachment */ = {
isa = PBXGroup;
children = (
041160FE22B442870030A9B7 /* AttachmentViewController.swift */,
041160FF22B442870030A9B7 /* AttachmentViewController.xib */,
);
path = Attachment;
sourceTree = "<group>";
};
0411610522B457290030A9B7 /* Gallery */ = {
isa = PBXGroup;
children = (
0411610622B457360030A9B7 /* Transitions */,
04D14BAE22B34A2800642648 /* GalleryViewController.swift */,
);
path = Gallery;
sourceTree = "<group>";
};
0411610622B457360030A9B7 /* Transitions */ = {
isa = PBXGroup;
children = (
0454DDAE22B462EF00B8BB8E /* GalleryExpandAnimationController.swift */,
0454DDB022B467AA00B8BB8E /* GalleryShrinkAnimationController.swift */,
);
path = Transitions;
sourceTree = "<group>";
};
D60A548C21ED515800F1F87C /* GMImagePicker */ = {
isa = PBXGroup;
children = (
@ -617,6 +654,8 @@
D641C786213DD852004B4513 /* Notifications */,
D641C787213DD862004B4513 /* Compose */,
D641C788213DD86D004B4513 /* Large Image */,
0411610422B4571E0030A9B7 /* Attachment */,
0411610522B457290030A9B7 /* Gallery */,
D641C789213DD87E004B4513 /* Preferences */,
);
path = Screens;
@ -1261,6 +1300,7 @@
D663626621360DD700C9CBA2 /* Preferences.storyboard in Resources */,
D627FF79217E950100CC0648 /* DraftsTableViewController.xib in Resources */,
D67C57B221E28FAD00C3118B /* ComposeStatusReplyView.xib in Resources */,
0411610122B442870030A9B7 /* AttachmentViewController.xib in Resources */,
D60C07E421E8176B0057FAA8 /* ComposeMediaView.xib in Resources */,
D667E5E12134937B0057A976 /* StatusTableViewCell.xib in Resources */,
D6A5FAF1217B7E05003DB2D9 /* ComposeViewController.xib in Resources */,
@ -1357,10 +1397,12 @@
04DACE8C212CB14B009840C4 /* MainTabBarViewController.swift in Sources */,
D6C693F92162E4DB007D6A6D /* StatusContentLabel.swift in Sources */,
D6D58DF922074B74009C8DD9 /* LinkLabel.swift in Sources */,
0454DDAF22B462EF00B8BB8E /* GalleryExpandAnimationController.swift in Sources */,
D6285B5121EA6E6E00FE4B39 /* AdvancedTableViewController.swift in Sources */,
0450531F22B0097E00100BA2 /* Timline+UI.swift in Sources */,
D667E5F52135BCD50057A976 /* ConversationTableViewController.swift in Sources */,
D6F953F021251A2900CF0F2B /* MastodonController.swift in Sources */,
0411610022B442870030A9B7 /* AttachmentViewController.swift in Sources */,
D62D2426217ABF63005076CC /* UserActivityType.swift in Sources */,
D66362712136338600C9CBA2 /* ComposeViewController.swift in Sources */,
D627FF81217FE8F400CC0648 /* BehaviorTableViewController.swift in Sources */,
@ -1369,6 +1411,7 @@
D62D2424217ABF3F005076CC /* NSUserActivity+Extensions.swift in Sources */,
D646C958213B367000269FB5 /* LargeImageShrinkAnimationController.swift in Sources */,
D646C956213B365700269FB5 /* LargeImageExpandAnimationController.swift in Sources */,
0454DDB122B467AA00B8BB8E /* GalleryShrinkAnimationController.swift in Sources */,
D667E5F82135C3040057A976 /* Mastodon+Equatable.swift in Sources */,
D67C57B421E2910700C3118B /* ComposeStatusReplyView.swift in Sources */,
04DACE8E212CC7CC009840C4 /* ImageCache.swift in Sources */,
@ -1409,6 +1452,7 @@
D6F953EC212519E700CF0F2B /* TimelineTableViewController.swift in Sources */,
D663626A2136163000C9CBA2 /* PreferencesAdaptive.swift in Sources */,
D667E5EB21349EF80057A976 /* ProfileHeaderTableViewCell.swift in Sources */,
04D14BB022B34A2800642648 /* GalleryViewController.swift in Sources */,
D641C77D213CB024004B4513 /* FollowNotificationTableViewCell.swift in Sources */,
D641C773213CAA25004B4513 /* NotificationsTableViewController.swift in Sources */,
D6757A7C2157E01900721E32 /* XCBManager.swift in Sources */,

18
Tusker/Extensions/UIViewController+Delegates.swift
View File

@ -12,27 +12,31 @@ extension UIViewController: UIViewControllerTransitioningDelegate {
public func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
if presented is LargeImageViewController {
return LargeImageExpandAnimationController()
} else {
return nil
} else if presented is GalleryViewController {
return GalleryExpandAnimationController()
}
return nil
}
public func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
if let dismissed = dismissed as? LargeImageViewController {
return LargeImageShrinkAnimationController(interactionController: dismissed.dismissInteractionController)
} else {
return nil
} else if let dismissed = dismissed as? GalleryViewController {
return GalleryShrinkAnimationController(interactionController: dismissed.dismissInteractionController)
}
return nil
}
public func interactionControllerForDismissal(using animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
if let animator = animator as? LargeImageShrinkAnimationController,
let interactionController = animator.interactionController,
interactionController.inProgress {
return interactionController
} else {
return nil
} else if let animator = animator as? GalleryShrinkAnimationController,
let interactionController = animator.interactionController,
interactionController.inProgress {
return interactionController
}
return nil
}
}

74
Tusker/Screens/Attachment/AttachmentViewController.swift Normal file
View File

@ -0,0 +1,74 @@
// AttachmentViewController.swift
// Tusker
//
// Created by Shadowfacts on 6/14/19.
// Copyright © 2019 Shadowfacts. All rights reserved.
//
import UIKit
import Pachyderm
class AttachmentViewController: UIViewController {
let attachment: Attachment
var largeImageVC: LargeImageViewController?
var loadingVC: LoadingViewController?
private var initialControlsVisible: Bool = true
var controlsVisible: Bool {
get {
return largeImageVC?.controlsVisible ?? initialControlsVisible
}
set {
if let largeImageVC = largeImageVC {
largeImageVC.setControlsVisible(newValue, animated: false)
} else {
initialControlsVisible = newValue
}
}
}
override var childForHomeIndicatorAutoHidden: UIViewController? {
return largeImageVC
}
init(attachment: Attachment) {
self.attachment = attachment
super.init(nibName: "AttachmentViewController", bundle: nil)
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func viewDidLoad() {
super.viewDidLoad()
if let data = ImageCache.attachments.get(attachment.url) {
createLargeImage(data: data)
} else {
loadingVC = LoadingViewController()
embedChild(loadingVC!)
ImageCache.attachments.get(attachment.url) { [weak self] (data) in
DispatchQueue.main.async {
self?.loadingVC?.removeViewAndController()
self?.createLargeImage(data: data!)
}
}
}
}
func createLargeImage(data: Data) {
guard let image = UIImage(data: data) else { return }
largeImageVC = LargeImageViewController(image: image, description: attachment.description, sourceFrame: nil, sourceCornerRadius: nil)
largeImageVC!.initialControlsVisible = initialControlsVisible
largeImageVC!.shrinkGestureEnabled = false
if attachment.url.pathExtension == "gif" {
largeImageVC!.gifData = data
}
embedChild(largeImageVC!)
}
}

24
Tusker/Screens/Attachment/AttachmentViewController.xib Normal file
View File

@ -0,0 +1,24 @@
<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14810.11" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
<device id="retina6_1" orientation="portrait" appearance="light"/>
<dependencies>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14766.13"/>
<capability name="Safe area layout guides" minToolsVersion="9.0"/>
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
</dependencies>
<objects>
<placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="AttachmentViewController" customModule="Tusker" customModuleProvider="target">
<connections>
<outlet property="view" destination="i5M-Pr-FkT" id="sfx-zR-JGt"/>
</connections>
</placeholder>
<placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
<view clearsContextBeforeDrawing="NO" contentMode="scaleToFill" id="i5M-Pr-FkT">
<rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
<viewLayoutGuide key="safeArea" id="fnl-2z-Ty3"/>
<point key="canvasLocation" x="139" y="3"/>
</view>
</objects>
</document>

92
Tusker/Screens/Gallery/GalleryViewController.swift Normal file
View File

@ -0,0 +1,92 @@
// GalleryViewController.swift
// Tusker
//
// Created by Shadowfacts on 6/13/19.
// Copyright © 2019 Shadowfacts. All rights reserved.
//
import UIKit
import Pachyderm
class GalleryViewController: UIPageViewController, UIPageViewControllerDataSource, UIPageViewControllerDelegate {
var dismissInteractionController: LargeImageInteractionController?
let attachments: [Attachment]
let sourcesInfo: [(CGRect, CGFloat)]
let startIndex: Int
let pages: [AttachmentViewController]
var currentIndex: Int {
guard let vc = viewControllers?.first as? AttachmentViewController,
let index = pages.firstIndex(of: vc) else {
fatalError()
}
return index
}
override var prefersStatusBarHidden: Bool {
return true
}
override var childForHomeIndicatorAutoHidden: UIViewController? {
return
viewControllers?.first
}
init(attachments: [Attachment], sourcesInfo: [(CGRect, CGFloat)], startIndex: Int) {
self.attachments = attachments
self.sourcesInfo = sourcesInfo
self.startIndex = startIndex
self.pages = attachments.map(AttachmentViewController.init)
super.init(transitionStyle: .scroll, navigationOrientation: .horizontal)
setViewControllers([pages[startIndex]], direction: .forward, animated: false)
modalPresentationStyle = .fullScreen
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func viewDidLoad() {
super.viewDidLoad()
self.dataSource = self
self.delegate = self
dismissInteractionController = LargeImageInteractionController(viewController: self)
}
// MARK: - Page View Controller Data Source
func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
guard let attachment = viewController as? AttachmentViewController,
let index = pages.firstIndex(of: attachment),
index > 0 else {
return nil
}
return pages[index - 1]
}
func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
guard let attachment = viewController as? AttachmentViewController,
let index = pages.firstIndex(of: attachment),
index < pages.count - 1 else {
return nil
}
return pages[index + 1]
}
// MARK: - Page View Controller Delegate
func pageViewController(_ pageViewController: UIPageViewController, willTransitionTo pendingViewControllers: [UIViewController]) {
let pending = pendingViewControllers.first as! AttachmentViewController
let current = viewControllers!.first as! AttachmentViewController
pending.controlsVisible = current.controlsVisible
}
}

83
Tusker/Screens/Gallery/Transitions/GalleryExpandAnimationController.swift Normal file
View File

@ -0,0 +1,83 @@
// GalleryExpandAnimationController.swift
// Tusker
//
// Created by Shadowfacts on 6/14/19.
// Copyright © 2019 Shadowfacts. All rights reserved.
//
import UIKit
import Gifu
class GalleryExpandAnimationController: NSObject, UIViewControllerAnimatedTransitioning {
func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
return 0.2
}
func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
guard let fromVC = transitionContext.viewController(forKey: .from),
let toVC = transitionContext.viewController(forKey: .to) as? GalleryViewController else {
return
}
let attachment = toVC.attachments[toVC.startIndex]
let (sourceFrame, sourceCornerRadius) = toVC.sourcesInfo[toVC.startIndex]
let finalVCFrame = transitionContext.finalFrame(for: toVC)
guard let data = ImageCache.attachments.get(attachment.url), let image = UIImage(data: data) else {
toVC.view.frame = finalVCFrame
transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
return
}
let ratio = image.size.width / image.size.height
var width = finalVCFrame.width
var height = width / ratio
let maxHeight = fromVC.view.bounds.height - fromVC.view.safeAreaInsets.top - fromVC.view.safeAreaInsets.bottom
if height > maxHeight {
let scaleFactor = maxHeight / height
width *= scaleFactor
height = maxHeight
}
let finalFrame = CGRect(x: finalVCFrame.midX - width / 2, y: finalVCFrame.midY - height / 2, width: width, height: height)
let containerView = transitionContext.containerView
let imageView = GIFImageView(frame: sourceFrame)
imageView.image = image
if attachment.url.pathExtension == "gif" {
imageView.animate(withGIFData: data)
}
imageView.contentMode = .scaleAspectFill
imageView.layer.cornerRadius = sourceCornerRadius
imageView.layer.masksToBounds = true
let blackView = UIView(frame: finalVCFrame)
blackView.backgroundColor = .black
blackView.alpha = 0
containerView.addSubview(toVC.view)
containerView.addSubview(blackView)
containerView.addSubview(imageView)
toVC.view.isHidden = true
let duration = transitionDuration(using: transitionContext)
UIView.animate(withDuration: duration, animations: {
imageView.frame = finalFrame
imageView.layer.cornerRadius = 0
blackView.alpha = 1
}, completion: { _ in
toVC.view.frame = finalVCFrame
toVC.view.isHidden = false
fromVC.view.isHidden = false
blackView.removeFromSuperview()
imageView.removeFromSuperview()
transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
})
}
}

85
Tusker/Screens/Gallery/Transitions/GalleryShrinkAnimationController.swift Normal file
View File

@ -0,0 +1,85 @@
// GalleryShrinkAnimationController.swift
// Tusker
//
// Created by Shadowfacts on 6/14/19.
// Copyright © 2019 Shadowfacts. All rights reserved.
//
import UIKit
import Gifu
class GalleryShrinkAnimationController: NSObject, UIViewControllerAnimatedTransitioning {
let interactionController: LargeImageInteractionController?
init(interactionController: LargeImageInteractionController?) {
self.interactionController = interactionController
}
func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
return 0.2
}
func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
guard let fromVC = transitionContext.viewController(forKey: .from) as? GalleryViewController,
let toVC = transitionContext.viewController(forKey: .to) else {
return
}
let (sourceFrame, sourceCornerRadius) = fromVC.sourcesInfo[fromVC.currentIndex]
let originalVCFrame = fromVC.view.frame
let attachment = fromVC.attachments[fromVC.currentIndex]
guard let data = ImageCache.attachments.get(attachment.url),
let image = UIImage(data: data) else {
transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
return
}
let ratio = image.size.width / image.size.height
var width = originalVCFrame.width
var height = width / ratio
let maxHeight = fromVC.view.bounds.height - fromVC.view.safeAreaInsets.top - fromVC.view.safeAreaInsets.bottom
if height > maxHeight {
let scaleFactor = maxHeight / height
width *= scaleFactor
height = maxHeight
}
let originalFrame = CGRect(x: originalVCFrame.midX - width / 2, y: originalVCFrame.midY - height / 2, width: width, height: height)
let imageView = GIFImageView(frame: originalFrame)
imageView.image = image
if attachment.url.pathExtension == "gif" {
imageView.animate(withGIFData: data)
}
imageView.contentMode = .scaleAspectFill
imageView.layer.cornerRadius = 0
imageView.layer.masksToBounds = true
let blackView = UIView(frame: originalVCFrame)
blackView.backgroundColor = .black
blackView.alpha = 1
let containerView = transitionContext.containerView
containerView.addSubview(toVC.view)
containerView.addSubview(blackView)
containerView.addSubview(imageView)
let duration = transitionDuration(using: transitionContext)
UIView.animate(withDuration: duration, animations: {
imageView.frame = sourceFrame
imageView.layer.cornerRadius = sourceCornerRadius
blackView.alpha = 0
}, completion: { _ in
blackView.removeFromSuperview()
imageView.removeFromSuperview()
if transitionContext.transitionWasCancelled {
toVC.view.removeFromSuperview()
}
transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
})
}
}

44
Tusker/Screens/Large Image/LargeImageViewController.swift
View File

@ -7,6 +7,7 @@
//
import UIKit
import Pachyderm
import Photos
import Gifu
@ -41,20 +42,13 @@ class LargeImageViewController: UIViewController, UIScrollViewDelegate {
var gifData: Data?
var imageDescription: String?
var controlsVisible = true {
var initialControlsVisible = true
private(set) var controlsVisible = true {
didSet {
setNeedsUpdateOfHomeIndicatorAutoHidden()
UIView.animate(withDuration: 0.2) {
let topOffset = self.controlsVisible ? 0 : -self.topControlsView.bounds.height
self.topControlsView.transform = CGAffineTransform(translationX: 0, y: topOffset)
if self.imageDescription != nil {
let bottomOffset = self.controlsVisible ? 0 : self.bottomControlsView.bounds.height + self.view.safeAreaInsets.bottom
self.bottomControlsView.transform = CGAffineTransform(translationX: 0, y: bottomOffset)
}
}
}
}
var shrinkGestureEnabled = true
var prevZoomScale: CGFloat?
@ -73,6 +67,8 @@ class LargeImageViewController: UIViewController, UIScrollViewDelegate {
self.originCornerRadius = sourceCornerRadius
super.init(nibName: "LargeImageViewController", bundle: nil)
modalPresentationStyle = .fullScreen
}
// init(gifData: Data?, description: String?, sourceFrame: CGRect, sourceCornerRadius: CGFloat, router: AppRouter) {
@ -92,6 +88,8 @@ class LargeImageViewController: UIViewController, UIScrollViewDelegate {
override func viewDidLoad() {
super.viewDidLoad()
setControlsVisible(initialControlsVisible, animated: false)
imageView.image = image
if let gifData = gifData {
imageView.animate(withGIFData: gifData)
@ -106,7 +104,9 @@ class LargeImageViewController: UIViewController, UIScrollViewDelegate {
bottomControlsView.isHidden = true
}
dismissInteractionController = LargeImageInteractionController(viewController: self)
if shrinkGestureEnabled {
dismissInteractionController = LargeImageInteractionController(viewController: self)
}
view.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(scrollViewPressed(_:))))
let doubleTap = UITapGestureRecognizer(target: self, action: #selector(scrollViewDoubleTapped(_:)))
@ -143,6 +143,26 @@ class LargeImageViewController: UIViewController, UIScrollViewDelegate {
}
}
func setControlsVisible(_ controlsVisible: Bool, animated: Bool) {
self.controlsVisible = controlsVisible
if animated {
UIView.animate(withDuration: 0.2) {
self.updateControlsView()
}
} else {
updateControlsView()
}
}
func updateControlsView() {
let topOffset = self.controlsVisible ? 0 : -self.topControlsView.bounds.height
self.topControlsView.transform = CGAffineTransform(translationX: 0, y: topOffset)
if self.imageDescription != nil {
let bottomOffset = self.controlsVisible ? 0 : self.bottomControlsView.bounds.height + self.view.safeAreaInsets.bottom
self.bottomControlsView.transform = CGAffineTransform(translationX: 0, y: bottomOffset)
}
}
func viewForZooming(in scrollView: UIScrollView) -> UIView? {
return imageView
}
@ -190,7 +210,7 @@ class LargeImageViewController: UIViewController, UIScrollViewDelegate {
if scrollView.zoomScale > scrollView.minimumZoomScale {
animateZoomOut()
} else {
controlsVisible = !controlsVisible
setControlsVisible(!controlsVisible, animated: true)
}
}

6
Tusker/Screens/Profile/ProfileTableViewController.swift
View File

@ -66,7 +66,7 @@ class ProfileTableViewController: EnhancedTableViewController, PreferencesAdapti
updateAccountUI()
} else {
loadingVC = LoadingViewController()
add(loadingVC!)
embedChild(loadingVC!)
MastodonCache.account(for: accountID) { (account) in
guard account != nil else {
let alert = UIAlertController(title: "Something Went Wrong", message: "Couldn't load the selected account", preferredStyle: .alert)
@ -86,7 +86,7 @@ class ProfileTableViewController: EnhancedTableViewController, PreferencesAdapti
}
} else {
loadingVC = LoadingViewController()
add(loadingVC!)
embedChild(loadingVC!)
shouldLoadOnAccountIDSet = true
}
}
@ -127,7 +127,7 @@ class ProfileTableViewController: EnhancedTableViewController, PreferencesAdapti
}
func updateAccountUI() {
loadingVC?.remove()
loadingVC?.removeViewAndController()
updateUIForPreferences()

4
Tusker/Screens/Utilities/LoadingViewController.swift
View File

@ -16,8 +16,10 @@ class LoadingViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .systemBackground
activityIndicator = UIActivityIndicatorView(style: .large)
activityIndicator.color = .darkGray
activityIndicator.color = .secondaryLabel
activityIndicator.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(activityIndicator)

80
Tusker/Screens/Utilities/UIViewController+Children.swift
View File

@ -8,18 +8,80 @@
import UIKit
// Based on MVCTodo by Dave DeLong: https://github.com/davedelong/MVCTodo/blob/841649dd6aa31bacda3ad7ef9a9a836f66281e50/MVCTodo/Extensions/UIViewController.swift
extension UIViewController {
func add(_ child: UIViewController) {
addChild(child)
view.addSubview(child.view)
child.didMove(toParent: self)
func embedChild(_ newChild: UIViewController, in container: UIView? = nil) {
// if the view controller is already a child of something else, remove it
if let oldParent = newChild.parent, oldParent != self {
newChild.beginAppearanceTransition(false, animated: false)
newChild.willMove(toParent: nil)
newChild.removeFromParent()
if newChild.viewIfLoaded?.superview != nil {
newChild.viewIfLoaded?.removeFromSuperview()
}
newChild.endAppearanceTransition()
}
// since .view returns an IUO, by default the type of this is "UIView?"
// explicitly type the variable because We Know Better™
var targetContainer: UIView = container ?? self.view
if !targetContainer.isContainedWithin(view) {
targetContainer = view
}
// add the view controller as a child
if newChild.parent != self {
newChild.beginAppearanceTransition(true, animated: false)
addChild(newChild)
newChild.didMove(toParent: self)
targetContainer.embedSubview(newChild.view)
newChild.endAppearanceTransition()
} else {
// the view controller is already a child
// make sure it's in the right view
// we don't do the appearance transition stuff here,
// because the vc is already a child, so *presumably*
// that transition stuff has already appened
targetContainer.embedSubview(newChild.view)
}
}
func remove() {
guard parent != nil else { return }
willMove(toParent: nil)
removeFromParent()
func removeViewAndController() {
view.removeFromSuperview()
removeFromParent()
}
}
// Based on MVCTodo by Dave DeLong: https://github.com/davedelong/MVCTodo/blob/841649dd6aa31bacda3ad7ef9a9a836f66281e50/MVCTodo/Extensions/UIView.swift
extension UIView {
func embedSubview(_ subview: UIView) {
if subview.superview == self { return }
if subview.superview != nil {
subview.removeFromSuperview()
}
subview.frame = bounds
addSubview(subview)
NSLayoutConstraint.activate([
subview.leadingAnchor.constraint(equalTo: leadingAnchor),
subview.trailingAnchor.constraint(equalTo: trailingAnchor),
subview.topAnchor.constraint(equalTo: topAnchor),
subview.bottomAnchor.constraint(equalTo: bottomAnchor)
])
}
func isContainedWithin(_ other: UIView) -> Bool {
var current: UIView? = self
while let proposedView = current {
if proposedView == other { return true }
current = proposedView.superview
}
return false
}
}

36
Tusker/TuskerNavigationDelegate.swift
View File

@ -34,6 +34,10 @@ protocol TuskerNavigationDelegate {
func showLargeImage(gifData: Data, description: String?, animatingFrom sourceView: UIView)
func gallery(attachments: [Attachment], sourceViews: [UIView], startIndex: Int) -> GalleryViewController
func showGallery(attachments: [Attachment], sourceViews: [UIView], startIndex: Int)
func showMoreOptions(forStatus statusID: String)
func showMoreOptions(forURL url: URL)
@ -95,7 +99,7 @@ extension TuskerNavigationDelegate where Self: UIViewController {
present(vc, animated: true)
}
func largeImage(_ image: UIImage, description: String?, sourceView: UIView) -> LargeImageViewController {
private func sourceViewInfo(_ sourceView: UIView) -> (CGRect, CGFloat) {
var sourceFrame = sourceView.convert(sourceView.bounds, to: view)
if let scrollView = view as? UIScrollView {
let scale = scrollView.zoomScale
@ -105,28 +109,21 @@ extension TuskerNavigationDelegate where Self: UIViewController {
let y = sourceFrame.minY * scale - scrollView.contentOffset.y + scrollView.frame.minY
sourceFrame = CGRect(x: x, y: y, width: width, height: height)
}
let sourceCornerRadius = sourceView.layer.cornerRadius
return (sourceFrame, sourceView.layer.cornerRadius)
}
func largeImage(_ image: UIImage, description: String?, sourceView: UIView) -> LargeImageViewController {
let (sourceFrame, sourceCornerRadius) = sourceViewInfo(sourceView)
let vc = LargeImageViewController(image: image, description: description, sourceFrame: sourceFrame, sourceCornerRadius: sourceCornerRadius)
vc.transitioningDelegate = self
vc.modalPresentationStyle = .fullScreen
return vc
}
func largeImage(gifData: Data, description: String?, sourceView: UIView) -> LargeImageViewController {
var sourceFrame = sourceView.convert(sourceView.bounds, to: view)
if let scrollView = view as? UIScrollView {
let scale = scrollView.zoomScale
let width = sourceFrame.width * scale
let height = sourceFrame.height * scale
let x = sourceFrame.minX * scale - scrollView.contentOffset.x + scrollView.frame.minX
let y = sourceFrame.minY * scale - scrollView.contentOffset.y + scrollView.frame.minY
sourceFrame = CGRect(x: x, y: y, width: width, height: height)
}
let sourceCornerRadius = sourceView.layer.cornerRadius
let (sourceFrame, sourceCornerRadius) = sourceViewInfo(sourceView)
let vc = LargeImageViewController(image: UIImage(data: gifData)!, description: description, sourceFrame: sourceFrame, sourceCornerRadius: sourceCornerRadius)
vc.transitioningDelegate = self
vc.gifData = gifData
vc.modalPresentationStyle = .fullScreen
return vc
}
@ -138,6 +135,17 @@ extension TuskerNavigationDelegate where Self: UIViewController {
present(largeImage(gifData: gifData, description: description, sourceView: sourceView), animated: true)
}
func gallery(attachments: [Attachment], sourceViews: [UIView], startIndex: Int) -> GalleryViewController {
let sourcesInfo = sourceViews.map(sourceViewInfo)
let vc = GalleryViewController(attachments: attachments, sourcesInfo: sourcesInfo, startIndex: startIndex)
vc.transitioningDelegate = self
return vc
}
func showGallery(attachments: [Attachment], sourceViews: [UIView], startIndex: Int) {
present(gallery(attachments: attachments, sourceViews: sourceViews, startIndex: startIndex), animated: true)
}
private func moreOptions(forURL url: URL) -> UIAlertController {
let alert = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
alert.title = url.absoluteString

4
Tusker/Views/AttachmentView.swift
View File

@ -65,9 +65,7 @@ class AttachmentView: UIImageView, GIFAnimatable {
}
@objc func imagePressed() {
if image != nil {
delegate?.showLargeAttachment(for: self)
}
delegate?.showLargeAttachment(for: self)
}
}

9
Tusker/Views/Status/StatusTableViewCell.swift
View File

@ -340,11 +340,12 @@ extension StatusTableViewCell: TableViewSwipeActionProvider {
extension StatusTableViewCell: AttachmentViewDelegate {
func showLargeAttachment(for attachmentView: AttachmentView) {
if let gifData = attachmentView.gifData {
delegate?.showLargeImage(gifData: gifData, description: attachmentView.attachment.description, animatingFrom: attachmentView)
} else {
delegate?.showLargeImage(attachmentView.image!, description: attachmentView.attachment.description, animatingFrom: attachmentView)
guard let status = MastodonCache.status(for: statusID) else { fatalError("Missing cached status \(statusID!)") }
let startIndex = status.attachments.firstIndex { $0.id == attachmentView.attachment.id } ?? 0
let sourceViews = status.attachments.map { attachment in
attachmentsView.subviews.first { ($0 as! AttachmentView).attachment.id == attachment.id }!
}
delegate?.showGallery(attachments: status.attachments, sourceViews: sourceViews, startIndex: startIndex)
}
}