Move GIFImageView to TuskerComponents

Packages/TuskerComponents/Sources/TuskerComponents/GIFImageView.swift

@@ -1,6 +1,6 @@
 //
 //  GIFImageView.swift
-//  Tusker
+//  TuskerComponents
 //
 //  Created by Shadowfacts on 11/11/21.
 //  Copyright © 2021 Shadowfacts. All rights reserved.
@@ -8,36 +8,36 @@
 
 import UIKit
 
-class GIFImageView: UIImageView {
+open class GIFImageView: UIImageView {
     
-    fileprivate(set) var gifController: GIFController? = nil
+    public fileprivate(set) var gifController: GIFController? = nil
-    var isAnimatingGIF: Bool { gifController?.state == .playing }
+    public var isAnimatingGIF: Bool { gifController?.state == .playing }
     
     /// Detaches the current GIF controller from this view.
     /// If this view is the GIF controller's only one, it will stop itself.
-    func detachGIFController() {
+    public func detachGIFController() {
         gifController?.detach(from: self)
     }
     
 }
 
 /// A `GIFController` controls the animation of one or more `GIFImageView`s.
-class GIFController {
+public class GIFController {
     
     // GIFImageView strongly holds the controller so that when the last view detaches, the controller is freed
     private var imageViews = WeakArray<GIFImageView>()
     
-    private(set) var gifData: Data
+    public let gifData: Data
     private(set) var state: State = .stopped
-    private(set) var lastFrame: (image: UIImage, index: Int)? = nil
+    public private(set) var lastFrame: (image: UIImage, index: Int)? = nil
     
-    init(gifData: Data) {
+    public init(gifData: Data) {
         self.gifData = gifData
     }
     
     /// Attaches another view to this controller, letting it play back alongside the others.
     /// Immediately brings it into sync with the others, setting the last frame if there was one.
-    func attach(to view: GIFImageView) {
+    public func attach(to view: GIFImageView) {
         imageViews.append(view)
         view.gifController = self
         
@@ -49,13 +49,13 @@ class GIFController {
     /// Detaches the given view from this controller.
     /// If no views attached views remain, the last strong reference to this controller is nilled out
     /// and image animation will stop at the next CGAnimateImageDataWithBlock callback.
-    func detach(from view: GIFImageView) {
+    public func detach(from view: GIFImageView) {
         // todo: does === work the way i want here
         imageViews.removeAll(where: { $0 === view })
         view.gifController = nil
     }
     
-    func startAnimating() {
+    public func startAnimating() {
         guard state.shouldStop else { return }
         
         state = .playing
@@ -74,7 +74,7 @@ class GIFController {
         }
     }
     
-    func stopAnimating() {
+    public func stopAnimating() {
         guard state == .playing else { return }
         
         state = .stopping
@@ -89,3 +89,47 @@ class GIFController {
     }
     
 }
+
+private class WeakHolder<T: AnyObject> {
+    weak var object: T?
+    
+    init(_ object: T?) {
+        self.object = object
+    }
+}
+
+private struct WeakArray<Element: AnyObject>: MutableCollection, RangeReplaceableCollection {
+    private var array: [WeakHolder<Element>]
+    
+    var startIndex: Int { array.startIndex }
+    var endIndex: Int { array.endIndex }
+    
+    init() {
+        array = []
+    }
+    
+    init(_ elements: [Element]) {
+        array = elements.map { WeakHolder($0) }
+    }
+    
+    init(_ elements: [Element?]) {
+        array = elements.map { WeakHolder($0) }
+    }
+    
+    subscript(position: Int) -> Element? {
+        get {
+            array[position].object
+        }
+        set(newValue) {
+            array[position] = WeakHolder(newValue)
+        }
+    }
+    
+    func index(after i: Int) -> Int {
+        return array.index(after: i)
+    }
+    
+    mutating func replaceSubrange<C>(_ subrange: Range<Int>, with newElements: C) where C : Collection, Self.Element == C.Element {
+        array.replaceSubrange(subrange, with: newElements.map { WeakHolder($0) })
+    }
+}

Tusker.xcodeproj/project.pbxproj

@@ -332,7 +332,6 @@
 		D6D9498D298CBB4000C59229 /* TrendingStatusCollectionViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D9498C298CBB4000C59229 /* TrendingStatusCollectionViewCell.swift */; };
 		D6D9498F298EB79400C59229 /* CopyableLable.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6D9498E298EB79400C59229 /* CopyableLable.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 */; };
 		D6DD353F22F502EC00A9563A /* Preferences+Notification.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6DD353E22F502EC00A9563A /* Preferences+Notification.swift */; };
 		D6DD8FFD298495A8002AD3FD /* LogoutService.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6DD8FFC298495A8002AD3FD /* LogoutService.swift */; };
@@ -758,7 +757,6 @@
 		D6D9498C298CBB4000C59229 /* TrendingStatusCollectionViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TrendingStatusCollectionViewCell.swift; sourceTree = "<group>"; };
 		D6D9498E298EB79400C59229 /* CopyableLable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CopyableLable.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>"; };
 		D6DD353E22F502EC00A9563A /* Preferences+Notification.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Preferences+Notification.swift"; sourceTree = "<group>"; };
 		D6DD8FFC298495A8002AD3FD /* LogoutService.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LogoutService.swift; sourceTree = "<group>"; };
@@ -1459,7 +1457,6 @@
 				D61F75B8293C15A000C0B37F /* ZeroHeightCollectionViewCell.swift */,
 				D67C1794266D57D10070F250 /* FastAccountSwitcherIndicatorView.swift */,
 				D6EAE0DA2550CC8A002DB0AC /* FocusableTextField.swift */,
-				D6DD2A44273D6C5700386A6C /* GIFImageView.swift */,
 				D641C77E213DC78A004B4513 /* InlineTextAttachment.swift */,
 				D620483323D3801D008A63EF /* LinkTextView.swift */,
 				D61A45E728DF477D002BE511 /* LoadingCollectionViewCell.swift */,
@@ -2145,7 +2142,6 @@
 				D6C143DA253510F4007DC240 /* ComposeEmojiTextField.swift in Sources */,
 				D6DD2A3F273C1F4900386A6C /* ComposeAttachmentImage.swift in Sources */,
 				D65B4B6229771A3F00DABDFB /* FetchStatusService.swift in Sources */,
-				D6DD2A45273D6C5700386A6C /* GIFImageView.swift in Sources */,
 				D61F759029353B4300C0B37F /* FileManager+Size.swift in Sources */,
 				0427033822B30F5F000D31B6 /* BehaviorPrefsView.swift in Sources */,
 				D6945C2F23AC47C3005C403C /* SavedDataManager.swift in Sources */,

Tusker/Screens/Attachment Gallery/AttachmentPreviewViewController.swift

@@ -8,6 +8,7 @@
 
 import UIKit
 import Pachyderm
+import TuskerComponents
 
 class AttachmentPreviewViewController: UIViewController {
 

Tusker/Screens/Compose/ComposeAttachmentImage.swift

@@ -8,6 +8,7 @@
 
 import SwiftUI
 import Photos
+import TuskerComponents
 
 struct ComposeAttachmentImage: View {
     let attachment: CompositionAttachment

Tusker/Screens/Large Image/LargeImageContentView.swift

@@ -10,6 +10,7 @@ import UIKit
 import Pachyderm
 @preconcurrency import AVFoundation
 @preconcurrency import VisionKit
+import TuskerComponents
 
 protocol LargeImageContentView: UIView {
     var animationImage: UIImage? { get }

Tusker/Screens/Large Image/LoadingLargeImageViewController.swift

@@ -7,6 +7,7 @@
 
 import UIKit
 import Pachyderm
+import TuskerComponents
 
 class LoadingLargeImageViewController: UIViewController, LargeImageAnimatableViewController {
 

Tusker/Screens/Large Image/Transitions/LargeImageExpandAnimationController.swift

@@ -7,6 +7,7 @@
 //
 
 import UIKit
+import TuskerComponents
 
 protocol LargeImageAnimatableViewController: UIViewController {
     var animationSourceView: UIImageView? { get }

Tusker/Screens/Large Image/Transitions/LargeImageShrinkAnimationController.swift

@@ -7,6 +7,7 @@
 //
 
 import UIKit
+import TuskerComponents
 
 class LargeImageShrinkAnimationController: NSObject, UIViewControllerAnimatedTransitioning {
     

Tusker/Views/Attachments/AttachmentView.swift

@@ -9,6 +9,7 @@
 import UIKit
 import Pachyderm
 import AVFoundation
+import TuskerComponents
 
 protocol AttachmentViewDelegate: AnyObject {
     func attachmentViewGallery(startingAt index: Int) -> GalleryViewController?