Video support

ChattoAdditions/Source/Chat Items/PhotoMessages/PhotoMessageModel.swift

@@ -6,7 +6,11 @@
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ to use, copy
+ public var thumbnail: UIImage
+
+ public var thumbnailURL: String?
+ , modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
 
@@ -28,6 +32,8 @@ public protocol PhotoMessageModelProtocol: DecoratedMessageModelProtocol {
     var image: UIImage { get }
     var imageSize: CGSize { get }
     var imageURL: String? { get }
+    var thumbnail: UIImage { get }
+    var thumbnailURL: String? { get }
 }
 
 open class PhotoMessageModel<MessageModelT: MessageModelProtocol>: PhotoMessageModelProtocol {
@@ -38,10 +44,15 @@ open class PhotoMessageModel<MessageModelT: MessageModelProtocol>: PhotoMessageM
     public var image: UIImage
     public let imageSize: CGSize
     public var imageURL: String?
-    public init(messageModel: MessageModelT, imageSize: CGSize, image: UIImage, imageURL: String?) {
+    public var thumbnail: UIImage
+    public var thumbnailURL: String?
+
+    public init(messageModel: MessageModelT, imageSize: CGSize, image: UIImage, imageURL: String?, thumbnailURL: String?) {
         self._messageModel = messageModel
         self.imageSize = imageSize
         self.image = image
         self.imageURL = imageURL
+        self.thumbnail = image
+        self.thumbnailURL = thumbnailURL
     }
 }

ChattoAdditions/Source/Chat Items/PhotoTextMessages/PhotoTextMessageModel.swift

@@ -19,11 +19,17 @@ open class PhotoTextMessageModel<MessageModelT: MessageModelProtocol>: PhotoText
     public var image: UIImage
     public let imageSize: CGSize
     public var imageURL: String?
-    public init(messageModel: MessageModelT, text: String, imageSize: CGSize, image: UIImage, imageURL: String?) {
+    public var thumbnail: UIImage
+    public var thumbnailURL: String?
+
+
+    public init(messageModel: MessageModelT, text: String, imageSize: CGSize, image: UIImage, imageURL: String?, thumbnailURL: String?) {
         self._messageModel = messageModel
         self.text = text
         self.imageSize = imageSize
         self.image = image
         self.imageURL = imageURL
+        self.thumbnail = image
+        self.thumbnailURL = thumbnailURL
     }
 }

ChattoAdditions/Source/Chat Items/TextMessages/Views/TextBubbleView.swift

@@ -326,9 +326,15 @@ private final class ChatMessageTextView: UITextView {
             super.gestureRecognizers = newValue
         }
         get {
-            return super.gestureRecognizers?.filter({ (gestureRecognizer) -> Bool in
-                return type(of: gestureRecognizer) == UILongPressGestureRecognizer.self && gestureRecognizer.delaysTouchesEnded
-            })
+            return super.gestureRecognizers?.filter { gestureRecognizer in
+                if type(of: gestureRecognizer) == UILongPressGestureRecognizer.self, gestureRecognizer.delaysTouchesEnded {
+                    return true
+                }
+                if #available(iOS 11, *), gestureRecognizer.name == "UITextInteractionNameLinkTap" {
+                    return true
+                }
+                return false
+            }
         }
     }
 

ChattoAdditions/Source/Chat Items/VideoTextMessages/VideoTextMessageModel.swift

@@ -19,20 +19,24 @@ open class VideoTextMessageModel<MessageModelT: MessageModelProtocol>: VideoText
     public var image: UIImage
     public let imageSize: CGSize
     public var imageURL: String?
+    public var thumbnail: UIImage
+    public var thumbnailURL: String?
     public var videoURL: URL?
 
     public init(messageModel: MessageModelT,
                 text: String,
                 videoURL: URL,
                 imageSize: CGSize,
-                image: UIImage,
-                imageURL: String?)
+                thumbnail: UIImage,
+                thumbnailURL: String?)
     {
         self._messageModel = messageModel
         self.text = text
         self.imageSize = imageSize
-        self.image = image
-        self.imageURL = imageURL
+        self.image = thumbnail
+        self.thumbnail = thumbnail
+        self.imageURL = thumbnailURL
+        self.thumbnailURL = thumbnailURL
         self.videoURL = videoURL
     }
 }

ChattoAdditions/Source/Input/Photos/Photo/PhotosInputCell.swift

@@ -71,6 +71,11 @@ final class PhotosInputCell: UICollectionViewCell {
         }
         set {
             self.imageView.image = newValue
+            if (newValue != nil) {
+                self.imageView.startAnimating()
+            } else {
+                self.imageView.stopAnimating()
+            }
         }
     }
 

ChattoAdditions/Source/Input/Photos/Photo/PhotosInputDataProvider.swift

@@ -89,7 +89,7 @@ final class PhotosInputDataProvider: NSObject, PhotosInputDataProviderProtocol,
     }
 
     func requestPreviewImage(at index: Int,
-                             targetSize: CGSize,
+                              targetSize: CGSize,
                              completion: @escaping PhotosInputDataProviderCompletion) -> PhotosInputDataProviderImageRequestProtocol {
         assert(index >= 0 && index < self.fetchResult.count, "Index out of bounds")
         let asset = self.fetchResult[index]
@@ -134,8 +134,18 @@ final class PhotosInputDataProvider: NSObject, PhotosInputDataProviderProtocol,
             requestId = self.imageManager.requestImageData(for: asset, options: options, resultHandler: { [weak self] (data, _, _, info) in
                 guard let sSelf = self else { return }
                 let result: PhotosInputDataProviderResult
-                if let data = data, let image = UIImage(data: data) {
-                    result = .success(image)
+                if let data = data {
+                    if UIImage.isAnimatedImage(data) {
+                        if let gifImage = UIImage.gifImageWithData(data: data) {
+                            result = .success(gifImage)
+                        } else {
+                            result = .error(info?[PHImageErrorKey] as? Error)
+                        }
+                    } else if let image = UIImage(data: data) {
+                        result = .success(image)
+                    } else {
+                        result = .error(info?[PHImageErrorKey] as? Error)
+                    }
                 } else {
                     result = .error(info?[PHImageErrorKey] as? Error)
                 }
@@ -194,3 +204,129 @@ final class PhotosInputDataProvider: NSObject, PhotosInputDataProviderProtocol,
         }
     }
 }
+
+public extension UIImage {
+
+    class func isAnimatedImage(_ data: Data) -> Bool {
+        if let source = CGImageSourceCreateWithData(data as CFData, nil) {
+            let count = CGImageSourceGetCount(source)
+            return count > 1
+        }
+        return false
+    }
+
+    class func gifImageWithData(data: Data) -> UIImage? {
+        guard let source = CGImageSourceCreateWithData(data as CFData, nil) else {
+            print("image doesn't exist")
+            return nil
+        }
+
+        return UIImage.animatedImageWithSource(source: source)
+    }
+
+    class func animatedImageWithSource(source: CGImageSource) -> UIImage? {
+        let count = CGImageSourceGetCount(source)
+        var images = [CGImage]()
+        var delays = [Int]()
+
+        for i in 0..<count {
+            if let image = CGImageSourceCreateImageAtIndex(source, i, nil) {
+                images.append(image)
+            }
+
+            let delaySeconds = UIImage.delayForImageAtIndex(index: Int(i), source: source)
+            delays.append(Int(delaySeconds * 1000.0)) // Seconds to ms
+        }
+
+        let duration: Int = {
+            var sum = 0
+
+            for val: Int in delays {
+                sum += val
+            }
+
+            return sum
+        }()
+
+        let gcd = gcdForArray(array: delays)
+        var frames = [UIImage]()
+
+        var frame: UIImage
+        var frameCount: Int
+        for i in 0..<count {
+            frame = UIImage(cgImage: images[Int(i)])
+            frameCount = Int(delays[Int(i)] / gcd)
+
+            for _ in 0..<frameCount {
+                frames.append(frame)
+            }
+        }
+
+        let animation = UIImage.animatedImage(with: frames, duration: Double(duration) / 1000.0)
+
+        return animation
+    }
+
+    class func delayForImageAtIndex(index: Int, source: CGImageSource!) -> Double {
+        var delay = 0.1
+
+        let cfProperties = CGImageSourceCopyPropertiesAtIndex(source, index, nil)
+        let gifProperties: CFDictionary = unsafeBitCast(CFDictionaryGetValue(cfProperties, Unmanaged.passUnretained(kCGImagePropertyGIFDictionary).toOpaque()), to: CFDictionary.self)
+
+        var delayObject: AnyObject = unsafeBitCast(CFDictionaryGetValue(gifProperties, Unmanaged.passUnretained(kCGImagePropertyGIFUnclampedDelayTime).toOpaque()), to: AnyObject.self)
+
+        if delayObject.doubleValue == 0 {
+            delayObject = unsafeBitCast(CFDictionaryGetValue(gifProperties, Unmanaged.passUnretained(kCGImagePropertyGIFDelayTime).toOpaque()), to: AnyObject.self)
+        }
+
+        delay = delayObject as! Double
+        return delay
+    }
+
+    class func gcdForPair(a: Int?, _ b: Int?) -> Int {
+        var a = a
+        var b = b
+        if b == nil || a == nil {
+            if b != nil {
+                return b!
+            } else if a != nil {
+                return a!
+            } else {
+                return 0
+            }
+        }
+
+        if a! < b! {
+            let c = a!
+            a = b!
+            b = c
+        }
+
+        var rest: Int
+        while true {
+            rest = a! % b!
+
+            if rest == 0 {
+                return b!
+            } else {
+                a = b!
+                b = rest
+            }
+        }
+    }
+
+    class func gcdForArray(array: Array<Int>) -> Int {
+        if array.isEmpty {
+            return 1
+        }
+
+        var gcd = array[0]
+
+        for val in array {
+            gcd = UIImage.gcdForPair(a: val, gcd)
+        }
+
+        return gcd
+    }
+
+}