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Ali
2021-11-09 14:37:39 +04:00
parent f936636f6a
commit ed5e3b3c5a
14 changed files with 1170 additions and 159 deletions
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201
submodules/Display/Source/TransformImageNode.swift
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@@ -2,6 +2,7 @@ import Foundation
import UIKit
import AsyncDisplayKit
import SwiftSignalKit
import AVFoundation
public struct TransformImageNodeContentAnimations: OptionSet {
public var rawValue: Int32
@@ -21,10 +22,60 @@ open class TransformImageNode: ASDisplayNode {
private var currentTransform: ((TransformImageArguments) -> DrawingContext?)?
private var currentArguments: TransformImageArguments?
private var image: UIImage?
private var argumentsPromise = ValuePromise<TransformImageArguments>(ignoreRepeated: true)
private var overlayColor: UIColor?
private var overlayNode: ASDisplayNode?
private var captureProtectedContentLayer: CaptureProtectedContentLayer?
public var captureProtected: Bool = false {
didSet {
if self.captureProtected != oldValue {
if self.captureProtected {
if self.captureProtectedContentLayer == nil {
let captureProtectedContentLayer = CaptureProtectedContentLayer()
self.captureProtectedContentLayer = captureProtectedContentLayer
if #available(iOS 13.0, *) {
captureProtectedContentLayer.preventsCapture = true
captureProtectedContentLayer.preventsDisplaySleepDuringVideoPlayback = false
}
captureProtectedContentLayer.frame = self.bounds
self.layer.addSublayer(captureProtectedContentLayer)
if let image = self.image {
if let cmSampleBuffer = image.cmSampleBuffer {
captureProtectedContentLayer.enqueue(cmSampleBuffer)
}
}
self.contents = nil
}
} else if let captureProtectedContentLayer = self.captureProtectedContentLayer {
self.captureProtectedContentLayer = nil
captureProtectedContentLayer.removeFromSuperlayer()
}
}
}
}
open override var bounds: CGRect {
didSet {
if let captureProtectedContentLayer = self.captureProtectedContentLayer, super.bounds.size != oldValue.size {
captureProtectedContentLayer.frame = super.bounds
}
}
}
open override var frame: CGRect {
didSet {
if let overlayNode = self.overlayNode {
overlayNode.frame = self.bounds
}
if let captureProtectedContentLayer = self.captureProtectedContentLayer, super.bounds.size != oldValue.size {
captureProtectedContentLayer.frame = super.bounds
}
}
}
deinit {
self.disposable.dispose()
@@ -38,19 +89,12 @@ open class TransformImageNode: ASDisplayNode {
}
}
override open var frame: CGRect {
didSet {
if let overlayNode = self.overlayNode {
overlayNode.frame = self.bounds
}
}
}
public func reset() {
self.disposable.set(nil)
self.currentArguments = nil
self.currentTransform = nil
self.contents = nil
self.image = nil
}
public func setSignal(_ signal: Signal<(TransformImageArguments) -> DrawingContext?, NoError>, attemptSynchronously: Bool = false, dispatchOnDisplayLink: Bool = true) {
@@ -85,21 +129,31 @@ open class TransformImageNode: ASDisplayNode {
strongSelf.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.15)
}
} else if strongSelf.contentAnimations.contains(.subsequentUpdates) {
let tempLayer = CALayer()
tempLayer.frame = strongSelf.bounds
tempLayer.contentsGravity = strongSelf.layer.contentsGravity
tempLayer.contents = strongSelf.contents
strongSelf.layer.addSublayer(tempLayer)
tempLayer.animateAlpha(from: 1.0, to: 0.0, duration: 0.15, removeOnCompletion: false, completion: { [weak tempLayer] _ in
tempLayer?.removeFromSuperlayer()
})
if let _ = strongSelf.captureProtectedContentLayer {
} else {
let tempLayer = CALayer()
tempLayer.frame = strongSelf.bounds
tempLayer.contentsGravity = strongSelf.layer.contentsGravity
tempLayer.contents = strongSelf.contents
strongSelf.layer.addSublayer(tempLayer)
tempLayer.animateAlpha(from: 1.0, to: 0.0, duration: 0.15, removeOnCompletion: false, completion: { [weak tempLayer] _ in
tempLayer?.removeFromSuperlayer()
})
}
}
var imageUpdate: UIImage?
if let (transform, arguments, image) = next {
strongSelf.currentTransform = transform
strongSelf.currentArguments = arguments
strongSelf.contents = image?.cgImage
if let captureProtectedContentLayer = strongSelf.captureProtectedContentLayer {
if let cmSampleBuffer = image?.cmSampleBuffer {
captureProtectedContentLayer.enqueue(cmSampleBuffer)
}
} else {
strongSelf.contents = image?.cgImage
}
strongSelf.image = image
imageUpdate = image
}
if let _ = strongSelf.overlayColor {
@@ -135,7 +189,14 @@ open class TransformImageNode: ASDisplayNode {
return
}
if let image = updatedImage {
strongSelf.contents = image.cgImage
if let captureProtectedContentLayer = strongSelf.captureProtectedContentLayer {
if let cmSampleBuffer = image.cmSampleBuffer {
captureProtectedContentLayer.enqueue(cmSampleBuffer)
}
} else {
strongSelf.contents = image.cgImage
}
strongSelf.image = image
strongSelf.currentArguments = arguments
if let _ = strongSelf.overlayColor {
strongSelf.applyOverlayColor(animated: false)
@@ -207,6 +268,19 @@ open class TransformImageNode: ASDisplayNode {
}
}
private final class NullActionClass: NSObject, CAAction {
@objc func run(forKey event: String, object anObject: Any, arguments dict: [AnyHashable : Any]?) {
}
}
private let nullAction = NullActionClass()
private class CaptureProtectedContentLayer: AVSampleBufferDisplayLayer {
override func action(forKey event: String) -> CAAction? {
return nullAction
}
}
open class TransformImageView: UIView {
public var imageUpdated: ((UIImage?) -> Void)?
public var contentAnimations: TransformImageNodeContentAnimations = []
@@ -215,10 +289,55 @@ open class TransformImageView: UIView {
private var currentTransform: ((TransformImageArguments) -> DrawingContext?)?
private var currentArguments: TransformImageArguments?
private var argumentsPromise = ValuePromise<TransformImageArguments>(ignoreRepeated: true)
private var image: UIImage?
private var captureProtectedContentLayer: CaptureProtectedContentLayer?
private var overlayColor: UIColor?
private var overlayView: UIView?
open override var bounds: CGRect {
didSet {
if let captureProtectedContentLayer = self.captureProtectedContentLayer, super.bounds.size != oldValue.size {
captureProtectedContentLayer.frame = super.bounds
}
}
}
open override var frame: CGRect {
didSet {
if let overlayView = self.overlayView {
overlayView.frame = self.bounds
}
if let captureProtectedContentLayer = self.captureProtectedContentLayer, super.bounds.size != oldValue.size {
captureProtectedContentLayer.frame = super.bounds
}
}
}
public var captureProtected: Bool = false {
didSet {
if self.captureProtected != oldValue {
if self.captureProtected {
if self.captureProtectedContentLayer == nil {
let captureProtectedContentLayer = CaptureProtectedContentLayer()
captureProtectedContentLayer.frame = self.bounds
self.layer.addSublayer(captureProtectedContentLayer)
if let image = self.image {
if let cmSampleBuffer = image.cmSampleBuffer {
captureProtectedContentLayer.enqueue(cmSampleBuffer)
}
}
self.layer.contents = nil
}
} else if let captureProtectedContentLayer = self.captureProtectedContentLayer {
self.captureProtectedContentLayer = nil
captureProtectedContentLayer.removeFromSuperlayer()
}
}
}
}
override public init(frame: CGRect) {
super.init(frame: frame)
@@ -235,19 +354,13 @@ open class TransformImageView: UIView {
self.disposable.dispose()
}
override open var frame: CGRect {
didSet {
if let overlayView = self.overlayView {
overlayView.frame = self.bounds
}
}
}
public func reset() {
self.disposable.set(nil)
self.currentArguments = nil
self.currentTransform = nil
self.layer.contents = nil
self.image = nil
self.captureProtectedContentLayer?.flushAndRemoveImage()
}
public func setSignal(_ signal: Signal<(TransformImageArguments) -> DrawingContext?, NoError>, attemptSynchronously: Bool = false, dispatchOnDisplayLink: Bool = true) {
@@ -277,26 +390,36 @@ open class TransformImageView: UIView {
self.disposable.set((result |> deliverOnMainQueue).start(next: { [weak self] next in
let apply: () -> Void = {
if let strongSelf = self {
if strongSelf.layer.contents == nil {
if strongSelf.image == nil {
if strongSelf.contentAnimations.contains(.firstUpdate) && !attemptSynchronously {
strongSelf.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.15)
}
} else if strongSelf.contentAnimations.contains(.subsequentUpdates) {
let tempLayer = CALayer()
tempLayer.frame = strongSelf.bounds
tempLayer.contentsGravity = strongSelf.layer.contentsGravity
tempLayer.contents = strongSelf.layer.contents
strongSelf.layer.addSublayer(tempLayer)
tempLayer.animateAlpha(from: 1.0, to: 0.0, duration: 0.15, removeOnCompletion: false, completion: { [weak tempLayer] _ in
tempLayer?.removeFromSuperlayer()
})
if let _ = strongSelf.captureProtectedContentLayer {
} else {
let tempLayer = CALayer()
tempLayer.frame = strongSelf.bounds
tempLayer.contentsGravity = strongSelf.layer.contentsGravity
tempLayer.contents = strongSelf.layer.contents
strongSelf.layer.addSublayer(tempLayer)
tempLayer.animateAlpha(from: 1.0, to: 0.0, duration: 0.15, removeOnCompletion: false, completion: { [weak tempLayer] _ in
tempLayer?.removeFromSuperlayer()
})
}
}
var imageUpdate: UIImage?
if let (transform, arguments, image) = next {
strongSelf.currentTransform = transform
strongSelf.currentArguments = arguments
strongSelf.layer.contents = image?.cgImage
if let captureProtectedContentLayer = strongSelf.captureProtectedContentLayer {
if let cmSampleBuffer = image?.cmSampleBuffer {
captureProtectedContentLayer.enqueue(cmSampleBuffer)
}
} else {
strongSelf.layer.contents = image?.cgImage
}
strongSelf.image = image
imageUpdate = image
}
if let _ = strongSelf.overlayColor {
@@ -369,13 +492,13 @@ open class TransformImageView: UIView {
private func applyOverlayColor(animated: Bool) {
if let overlayColor = self.overlayColor {
if let contents = self.layer.contents, CFGetTypeID(contents as CFTypeRef) == CGImage.typeID {
if let image = self.image {
if let overlayView = self.overlayView {
(overlayView as! UIImageView).image = UIImage(cgImage: contents as! CGImage).withRenderingMode(.alwaysTemplate)
(overlayView as! UIImageView).image = UIImage(cgImage: image.cgImage!).withRenderingMode(.alwaysTemplate)
overlayView.tintColor = overlayColor
} else {
let overlayView = UIImageView()
overlayView.image = UIImage(cgImage: contents as! CGImage).withRenderingMode(.alwaysTemplate)
overlayView.image = UIImage(cgImage: image.cgImage!).withRenderingMode(.alwaysTemplate)
overlayView.tintColor = overlayColor
overlayView.frame = self.bounds
self.addSubview(overlayView)