Swiftgram/submodules/TelegramCallsUI/Sources/VideoChatEncryptionKeyComponent.swift
2025-04-08 14:38:46 +04:00

853 lines
40 KiB
Swift

import Foundation
import UIKit
import Display
import ComponentFlow
import MultilineTextComponent
import BalancedTextComponent
import TelegramPresentationData
import CallsEmoji
import ImageBlur
private final class EmojiContainerView: UIView {
private let maskImageView: UIImageView?
let contentView: UIView
var isMaskEnabled: Bool = false {
didSet {
if self.isMaskEnabled != oldValue {
if self.isMaskEnabled {
self.mask = self.maskImageView
} else {
self.mask = nil
}
}
}
}
init(hasMask: Bool) {
if hasMask {
self.maskImageView = UIImageView()
} else {
self.maskImageView = nil
}
self.contentView = UIView()
self.contentView.layer.anchorPoint = CGPoint(x: 0.0, y: 0.0)
self.contentView.center = CGPoint(x: 0.0, y: 0.0)
super.init(frame: CGRect())
if let maskImageView = self.maskImageView {
self.mask = maskImageView
}
self.addSubview(self.contentView)
self.clipsToBounds = hasMask
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func update(size: CGSize, borderWidth: CGFloat) {
let minimalHeight = borderWidth * 2.0 + 1.0
let minimalSize = CGSize(width: 4.0, height: minimalHeight)
if let maskImageView = self.maskImageView, maskImageView.image?.size != minimalSize {
let generatedImage = generateImage(minimalSize, rotatedContext: { imageSize, context in
context.clear(CGRect(origin: CGPoint(), size: imageSize))
let height: CGFloat = borderWidth
let baseGradientAlpha: CGFloat = 1.0
let numSteps = 8
let firstStep = 0
let firstLocation = 0.0
let colors = (0 ..< numSteps).map { i -> UIColor in
if i < firstStep {
return UIColor(white: 1.0, alpha: 1.0)
} else {
let step: CGFloat = CGFloat(i - firstStep) / CGFloat(numSteps - firstStep - 1)
let value: CGFloat = bezierPoint(0.42, 0.0, 0.58, 1.0, step)
return UIColor(white: 1.0, alpha: baseGradientAlpha * value)
}
}
var locations = (0 ..< numSteps).map { i -> CGFloat in
if i < firstStep {
return 0.0
} else {
let step: CGFloat = CGFloat(i - firstStep) / CGFloat(numSteps - firstStep - 1)
return (firstLocation + (1.0 - firstLocation) * step)
}
}
let gradient = CGGradient(colorsSpace: DeviceGraphicsContextSettings.shared.colorSpace, colors: colors.map { $0.cgColor } as CFArray, locations: &locations)!
context.setFillColor(UIColor.white.cgColor)
context.fill(CGRect(origin: CGPoint(x: 0.0, y: height), size: CGSize(width: imageSize.width, height: 1.0)))
context.drawLinearGradient(gradient, start: CGPoint(x: 0.0, y: 0.0), end: CGPoint(x: 0.0, y: height), options: CGGradientDrawingOptions())
context.drawLinearGradient(gradient, start: CGPoint(x: 0.0, y: imageSize.height), end: CGPoint(x: 0.0, y: imageSize.height - height), options: CGGradientDrawingOptions())
})
let capInsets = UIEdgeInsets(top: borderWidth, left: 0, bottom: borderWidth, right: 0)
maskImageView.image = generatedImage?.resizableImage(withCapInsets: capInsets, resizingMode: .stretch)
}
if let maskImageView = self.maskImageView {
maskImageView.frame = CGRect(origin: CGPoint(), size: size)
}
self.contentView.bounds = CGRect(origin: CGPoint(), size: size)
}
}
private final class EmojiContentLayer: SimpleLayer {
private let size: CGSize
private(set) var emoji: String?
private var image: UIImage?
private var motionBlurLayer: SimpleLayer?
init(size: CGSize) {
self.size = size
super.init()
self.contentsGravity = .center
self.contentsScale = UIScreenScale
}
override init(layer: Any) {
if let layer = layer as? EmojiContentLayer {
self.size = layer.size
} else {
self.size = CGSize()
}
super.init(layer: layer)
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func setEmoji(emoji: String, font: UIFont) {
if self.emoji == emoji {
return
}
self.emoji = emoji
let attributedText = NSAttributedString(string: emoji, attributes: [
NSAttributedString.Key.font: font,
NSAttributedString.Key.foregroundColor: UIColor.black
])
var boundingRect = attributedText.boundingRect(with: CGSize(width: 200.0, height: 200.0), options: .usesLineFragmentOrigin, context: nil)
boundingRect.size.width = ceil(boundingRect.size.width)
boundingRect.size.height = ceil(boundingRect.size.height)
let renderer = UIGraphicsImageRenderer(bounds: CGRect(origin: CGPoint(), size: boundingRect.size))
let image = renderer.image { context in
UIGraphicsPushContext(context.cgContext)
attributedText.draw(at: CGPoint())
UIGraphicsPopContext()
}
self.image = image
self.contents = image.cgImage
if let motionBlurLayer = self.motionBlurLayer {
motionBlurLayer.contents = verticalBlurredImage(image, radius: 6.0)?.cgImage
}
}
func setMotionBlurFactor(factor: CGFloat, transition: ComponentTransition) {
if factor != 0.0 {
let motionBlurLayer: SimpleLayer
if let current = self.motionBlurLayer {
motionBlurLayer = current
} else {
motionBlurLayer = SimpleLayer()
if let image = self.image {
motionBlurLayer.contents = verticalBlurredImage(image, radius: 6.0)?.cgImage
}
motionBlurLayer.contentsScale = self.contentsScale
self.motionBlurLayer = motionBlurLayer
self.addSublayer(motionBlurLayer)
motionBlurLayer.position = CGPoint(x: self.size.width * 0.5, y: self.size.height * 0.5)
motionBlurLayer.bounds = CGRect(origin: CGPoint(), size: self.size)
motionBlurLayer.opacity = 0.0
}
let scaleFactor = 1.0 * (1.0 - factor) + 2.0 * factor
let opacityFactor = 0.0 * (1.0 - factor) + 0.6 * factor
transition.setTransform(layer: motionBlurLayer, transform: CATransform3DMakeScale(1.0, scaleFactor, 1.0))
transition.setAlpha(layer: motionBlurLayer, alpha: opacityFactor)
} else if let motionBlurLayer = self.motionBlurLayer {
self.motionBlurLayer = nil
transition.setAlpha(layer: motionBlurLayer, alpha: 0.0, completion: { [weak motionBlurLayer] _ in
motionBlurLayer?.removeFromSuperlayer()
})
transition.setTransform(layer: motionBlurLayer, transform: CATransform3DIdentity)
}
}
}
private final class EmojiItemComponent: Component {
let emoji: String?
init(emoji: String?) {
self.emoji = emoji
}
static func ==(lhs: EmojiItemComponent, rhs: EmojiItemComponent) -> Bool {
if lhs.emoji != rhs.emoji {
return false
}
return true
}
final class View: UIView {
private let containerView: EmojiContainerView
private let measureEmojiView = ComponentView<Empty>()
private var pendingContainerView: EmojiContainerView?
private var pendingEmojiLayers: [EmojiContentLayer] = []
private var emojiLayer: EmojiContentLayer?
private var component: EmojiItemComponent?
private weak var state: EmptyComponentState?
private var pendingEmojiValues: [String]?
override init(frame: CGRect) {
self.containerView = EmojiContainerView(hasMask: true)
super.init(frame: frame)
self.addSubview(self.containerView)
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
deinit {
}
func update(component: EmojiItemComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
let pendingContainerInset: CGFloat = 8.0
self.component = component
self.state = state
let motionBlurTransition: ComponentTransition
if transition.animation.isImmediate {
motionBlurTransition = .immediate
} else {
motionBlurTransition = .easeInOut(duration: 0.2)
}
let size = self.measureEmojiView.update(
transition: .immediate,
component: AnyComponent(MultilineTextComponent(
text: .plain(NSAttributedString(string: "👍", font: Font.regular(40.0), textColor: .white))
)),
environment: {},
containerSize: CGSize(width: 200.0, height: 200.0)
)
let containerFrame = CGRect(origin: CGPoint(x: -pendingContainerInset, y: -pendingContainerInset), size: CGSize(width: size.width + pendingContainerInset * 2.0, height: size.height + pendingContainerInset * 2.0))
self.containerView.frame = containerFrame
self.containerView.update(size: containerFrame.size, borderWidth: 10.0)
let borderEmoji = 2
let numEmoji = borderEmoji * 2 + 3
var previousEmojiLayer: EmojiContentLayer?
if let emoji = component.emoji {
let emojiLayer: EmojiContentLayer
var emojiLayerTransition = transition
if let current = self.emojiLayer {
emojiLayer = current
} else {
emojiLayerTransition = .immediate
emojiLayer = EmojiContentLayer(size: size)
self.emojiLayer = emojiLayer
}
emojiLayer.setEmoji(emoji: emoji, font: Font.regular(40.0))
let emojiSize = size
let emojiFrame = CGRect(origin: CGPoint(x: pendingContainerInset + floor((size.width - emojiSize.width) * 0.5), y: pendingContainerInset + floor((size.height - emojiSize.height) * 0.5)), size: emojiSize)
if emojiLayer.superlayer == nil {
self.containerView.contentView.layer.addSublayer(emojiLayer)
}
emojiLayerTransition.setFrame(layer: emojiLayer, frame: emojiFrame)
emojiLayer.setMotionBlurFactor(factor: 0.0, transition: emojiLayerTransition.animation.isImmediate ? .immediate : motionBlurTransition)
if let pendingContainerView = self.pendingContainerView {
self.pendingContainerView = nil
for pendingEmojiLayer in self.pendingEmojiLayers {
pendingEmojiLayer.setMotionBlurFactor(factor: 0.0, transition: motionBlurTransition)
}
self.pendingEmojiLayers.removeAll()
let currentPendingContainerOffset = pendingContainerView.contentView.layer.presentation()?.position.y ?? pendingContainerView.contentView.layer.position.y
pendingContainerView.contentView.layer.removeAnimation(forKey: "offsetCycle")
pendingContainerView.contentView.layer.position.y = currentPendingContainerOffset
let animateTransition: ComponentTransition = .spring(duration: 0.4)
let targetOffset: CGFloat = CGFloat(borderEmoji - 1) * size.height
animateTransition.setPosition(layer: pendingContainerView.contentView.layer, position: CGPoint(x: 0.0, y: targetOffset), completion: { [weak self, weak pendingContainerView] _ in
pendingContainerView?.removeFromSuperview()
self?.containerView.isMaskEnabled = false
})
animateTransition.animatePosition(layer: emojiLayer, from: CGPoint(x: 0.0, y: currentPendingContainerOffset - targetOffset), to: CGPoint(), additive: true)
} else {
self.containerView.isMaskEnabled = false
}
self.pendingEmojiValues = nil
} else {
if let emojiLayer = self.emojiLayer {
self.emojiLayer = nil
previousEmojiLayer = emojiLayer
}
if self.pendingEmojiValues?.count != numEmoji {
var pendingEmojiValuesValue: [String] = []
for _ in 0 ..< numEmoji - borderEmoji - 1 {
pendingEmojiValuesValue.append(randomCallsEmoji() ?? "👍")
}
for i in 0 ..< borderEmoji + 1 {
pendingEmojiValuesValue.append(pendingEmojiValuesValue[i])
}
self.pendingEmojiValues = pendingEmojiValuesValue
}
}
if let pendingEmojiValues, pendingEmojiValues.count == numEmoji {
self.containerView.isMaskEnabled = true
let pendingContainerView: EmojiContainerView
if let current = self.pendingContainerView {
pendingContainerView = current
} else {
pendingContainerView = EmojiContainerView(hasMask: false)
self.pendingContainerView = pendingContainerView
}
for i in 0 ..< numEmoji {
let pendingEmojiLayer: EmojiContentLayer
if self.pendingEmojiLayers.count > i {
pendingEmojiLayer = self.pendingEmojiLayers[i]
} else {
pendingEmojiLayer = EmojiContentLayer(size: size)
self.pendingEmojiLayers.append(pendingEmojiLayer)
}
pendingEmojiLayer.setEmoji(emoji: pendingEmojiValues[i], font: Font.regular(40.0))
let pendingEmojiViewSize = size
if pendingEmojiLayer.superlayer == nil {
pendingContainerView.contentView.layer.addSublayer(pendingEmojiLayer)
}
pendingEmojiLayer.frame = CGRect(origin: CGPoint(x: pendingContainerInset, y: pendingContainerInset + CGFloat(i) * size.height), size: pendingEmojiViewSize)
pendingEmojiLayer.setMotionBlurFactor(factor: 1.0, transition: motionBlurTransition)
}
pendingContainerView.frame = CGRect(origin: CGPoint(), size: containerFrame.size)
pendingContainerView.update(size: containerFrame.size, borderWidth: 10.0)
if pendingContainerView.superview == nil {
self.containerView.contentView.addSubview(pendingContainerView)
let startTime = CACurrentMediaTime()
var loopAnimationOffset: Double = 0.0
if let previousEmojiLayerValue = previousEmojiLayer {
previousEmojiLayer = nil
pendingContainerView.contentView.layer.addSublayer(previousEmojiLayerValue)
previousEmojiLayerValue.position = previousEmojiLayerValue.position.offsetBy(dx: 0.0, dy: CGFloat(numEmoji) * size.height)
let animation = CABasicAnimation(keyPath: "position.y")
loopAnimationOffset = 0.25
animation.duration = loopAnimationOffset
animation.fromValue = -CGFloat(numEmoji) * size.height
animation.toValue = 0.0
animation.timingFunction = CAMediaTimingFunction(name: .easeIn)
animation.autoreverses = false
animation.repeatCount = 1.0
animation.fillMode = .backwards
animation.isRemovedOnCompletion = true
animation.beginTime = pendingContainerView.contentView.layer.convertTime(startTime, from: nil)
animation.isAdditive = true
animation.completion = { [weak previousEmojiLayerValue] _ in
previousEmojiLayerValue?.removeFromSuperlayer()
}
pendingContainerView.contentView.layer.add(animation, forKey: "offsetCyclePre")
previousEmojiLayerValue.setMotionBlurFactor(factor: 1.0, transition: motionBlurTransition)
}
let animation = CABasicAnimation(keyPath: "position.y")
animation.duration = 0.2
animation.fromValue = -CGFloat(numEmoji - borderEmoji) * size.height
animation.toValue = CGFloat(borderEmoji - 3) * size.height
animation.timingFunction = CAMediaTimingFunction(name: .linear)
animation.autoreverses = false
animation.repeatCount = .infinity
animation.fillMode = .forwards
animation.beginTime = pendingContainerView.contentView.layer.convertTime(startTime + loopAnimationOffset, from: nil)
pendingContainerView.contentView.layer.add(animation, forKey: "offsetCycle")
} else if pendingContainerView.contentView.layer.animation(forKey: "offsetCycle") == nil {
let animation = CABasicAnimation(keyPath: "position.y")
animation.duration = 0.2
animation.fromValue = -CGFloat(numEmoji - borderEmoji) * size.height
animation.toValue = CGFloat(borderEmoji - 3) * size.height
animation.timingFunction = CAMediaTimingFunction(name: .linear)
animation.autoreverses = false
animation.repeatCount = .infinity
animation.fillMode = .forwards
pendingContainerView.contentView.layer.add(animation, forKey: "offsetCycle")
}
} else if let pendingContainerView = self.pendingContainerView {
self.pendingContainerView = nil
pendingContainerView.removeFromSuperview()
for emojiLayer in self.pendingEmojiLayers {
emojiLayer.removeFromSuperlayer()
}
self.pendingEmojiLayers.removeAll()
}
if let previousEmojiLayer = previousEmojiLayer {
previousEmojiLayer.removeFromSuperlayer()
}
return size
}
}
func makeView() -> View {
return View(frame: CGRect())
}
func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
}
}
final class VideoChatEncryptionKeyComponent: Component {
let theme: PresentationTheme
let strings: PresentationStrings
let emoji: [String]
let isExpanded: Bool
let tapAction: () -> Void
init(
theme: PresentationTheme,
strings: PresentationStrings,
emoji: [String],
isExpanded: Bool,
tapAction: @escaping () -> Void
) {
self.theme = theme
self.strings = strings
self.emoji = emoji
self.isExpanded = isExpanded
self.tapAction = tapAction
}
static func ==(lhs: VideoChatEncryptionKeyComponent, rhs: VideoChatEncryptionKeyComponent) -> Bool {
if lhs.theme !== rhs.theme {
return false
}
if lhs.strings !== rhs.strings {
return false
}
if lhs.emoji != rhs.emoji {
return false
}
if lhs.isExpanded != rhs.isExpanded {
return false
}
return true
}
final class View: UIView {
private let containerView: UIView
private var emojiItems: [ComponentView<Empty>] = []
private let background = ComponentView<Empty>()
private let backgroundShadowLayer = SimpleLayer()
private let collapsedText = ComponentView<Empty>()
private let expandedText = ComponentView<Empty>()
private let expandedSeparatorLayer = SimpleLayer()
private let expandedButtonText = ComponentView<Empty>()
private var component: VideoChatEncryptionKeyComponent?
private weak var state: EmptyComponentState?
private var isUpdating: Bool = false
private var tapRecognizer: TapLongTapOrDoubleTapGestureRecognizer?
#if DEBUG
private var mockStateTimer: Foundation.Timer?
private var mockCurrentKey: [String]?
#endif
override init(frame: CGRect) {
self.containerView = UIView()
self.containerView.clipsToBounds = true
super.init(frame: frame)
self.addSubview(self.containerView)
let tapRecognizer = UITapGestureRecognizer(target: self, action: #selector(self.tapGesture(_:)))
self.addGestureRecognizer(tapRecognizer)
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
deinit {
self.mockStateTimer?.invalidate()
}
@objc private func tapGesture(_ recognizer: TapLongTapOrDoubleTapGestureRecognizer) {
guard let component = self.component else {
return
}
if case .ended = recognizer.state {
component.tapAction()
}
}
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
if self.containerView.frame.contains(point) {
return self
} else {
return nil
}
}
func update(component: VideoChatEncryptionKeyComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
self.isUpdating = true
defer {
self.isUpdating = false
}
#if DEBUG && true
if self.component == nil {
self.mockStateTimer = Foundation.Timer.scheduledTimer(withTimeInterval: 4.0, repeats: true, block: { [weak self] _ in
guard let self else {
return
}
if self.mockCurrentKey == nil {
self.mockCurrentKey = (0 ..< 4).map { _ in randomCallsEmoji() ?? "👍" }
} else {
self.mockCurrentKey = nil
}
if !self.isUpdating {
self.state?.updated(transition: .spring(duration: 0.4), isLocal: true)
}
})
}
let emoji = self.mockCurrentKey ?? []
#else
let emoji = component.emoji
#endif
self.component = component
self.state = state
let alphaTransition: ComponentTransition
if transition.animation.isImmediate {
alphaTransition = .immediate
} else {
alphaTransition = .easeInOut(duration: 0.25)
}
let collapsedSideInset: CGFloat = 7.0
let collapsedVerticalInset: CGFloat = 8.0
let collapsedEmojiSpacing: CGFloat = 0.0
let collapsedEmojiTextSpacing: CGFloat = 5.0
let expandedTopInset: CGFloat = 8.0
let expandedSideInset: CGFloat = 14.0
var expandedEmojiSpacing: CGFloat = 10.0
let expandedEmojiTextSpacing: CGFloat = 10.0
let expandedTextButtonSpacing: CGFloat = 10.0
let expandedButtonTopInset: CGFloat = 12.0
let expandedButtonBottomInset: CGFloat = 13.0
let emojiItemSizes = (0 ..< 4).map { i -> CGSize in
let emojiItem: ComponentView<Empty>
if self.emojiItems.count > i {
emojiItem = self.emojiItems[i]
} else {
emojiItem = ComponentView()
self.emojiItems.append(emojiItem)
}
return emojiItem.update(
transition: transition,
component: AnyComponent(EmojiItemComponent(
emoji: i < emoji.count ? emoji[i] : nil
)),
environment: {},
containerSize: CGSize(width: 200.0, height: 200.0)
)
}
//TODO:localize
let collapsedTextSize = self.collapsedText.update(
transition: .immediate,
component: AnyComponent(MultilineTextComponent(
text: .plain(NSAttributedString(string: "End-to-end encrypted", font: Font.semibold(12.0), textColor: component.theme.list.itemPrimaryTextColor))
)),
environment: {},
containerSize: CGSize(width: 1000.0, height: 1000.0)
)
let expandedTextSize = self.expandedText.update(
transition: .immediate,
component: AnyComponent(BalancedTextComponent(
text: .plain(NSAttributedString(string: "These four emojis represent the call's encryption key. They must match for all participants and change when someone joins or leaves.", font: Font.regular(12.0), textColor: component.theme.list.itemPrimaryTextColor)),
maximumNumberOfLines: 0,
lineSpacing: 0.3
)),
environment: {},
containerSize: CGSize(width: availableSize.width - expandedSideInset * 2.0, height: 1000.0)
)
let expandedButtonTextSize = self.expandedButtonText.update(
transition: .immediate,
component: AnyComponent(MultilineTextComponent(
text: .plain(NSAttributedString(string: "Close", font: Font.regular(17.0), textColor: component.theme.list.itemPrimaryTextColor))
)),
environment: {},
containerSize: CGSize(width: availableSize.width - expandedSideInset * 2.0, height: 1000.0)
)
let collapsedEmojiFactor: CGFloat = 20.0 / 40.0
let collapsedEmojiSizes = emojiItemSizes.map { CGSize(width: floor($0.width * collapsedEmojiFactor), height: floor($0.height * collapsedEmojiFactor)) }
let collapsedSize = CGSize(width: collapsedTextSize.width + collapsedSideInset * 2.0 + collapsedEmojiTextSpacing * 2.0 + collapsedEmojiSpacing + collapsedEmojiSizes.reduce(into: 0.0, { $0 += $1.width }), height: collapsedTextSize.height + collapsedVerticalInset * 2.0)
var expandedEmojiWidth = expandedEmojiSpacing * CGFloat(self.emojiItems.count - 1) + emojiItemSizes.reduce(into: 0.0, { $0 += $1.width })
var expandedSize = CGSize(width: expandedSideInset * 2.0, height: 0.0)
expandedSize.width += max(expandedTextSize.width, expandedEmojiWidth)
expandedSize.height += expandedTopInset
expandedSize.height += emojiItemSizes[0].height
expandedSize.height += expandedEmojiTextSpacing
expandedSize.height += expandedTextSize.height
expandedSize.height += expandedTextButtonSpacing
expandedSize.height += expandedButtonTopInset
expandedSize.height += expandedButtonTextSize.height
expandedSize.height += expandedButtonBottomInset
if expandedEmojiWidth < expandedSize.width - expandedSideInset * 2.0 {
expandedEmojiWidth = expandedSize.width - expandedSideInset * 2.0
let cleanEmojiWidth = emojiItemSizes.reduce(into: 0.0, { $0 += $1.width })
expandedEmojiSpacing = floorToScreenPixels((expandedEmojiWidth - cleanEmojiWidth) / CGFloat(self.emojiItems.count - 1))
expandedEmojiSpacing = min(expandedEmojiSpacing, 24.0)
expandedEmojiWidth = expandedEmojiSpacing * CGFloat(self.emojiItems.count - 1) + emojiItemSizes.reduce(into: 0.0, { $0 += $1.width })
}
let backgroundSize = component.isExpanded ? expandedSize : collapsedSize
let backgroundCornerRadius: CGFloat = component.isExpanded ? 10.0 : collapsedSize.height * 0.5
let _ = self.background.update(
transition: transition,
component: AnyComponent(FilledRoundedRectangleComponent(
color: component.theme.list.itemBlocksBackgroundColor,
cornerRadius: .value(backgroundCornerRadius), smoothCorners: false
)),
environment: {},
containerSize: backgroundSize
)
let backgroundFrame = CGRect(origin: CGPoint(), size: backgroundSize)
if self.backgroundShadowLayer.superlayer == nil {
self.backgroundShadowLayer.backgroundColor = UIColor.clear.cgColor
self.containerView.layer.addSublayer(self.backgroundShadowLayer)
}
self.backgroundShadowLayer.shadowOpacity = 0.3
self.backgroundShadowLayer.shadowColor = UIColor.black.cgColor
self.backgroundShadowLayer.shadowRadius = 5.0
self.backgroundShadowLayer.shadowOffset = CGSize(width: 0.0, height: 2.0)
alphaTransition.setAlpha(layer: self.backgroundShadowLayer, alpha: component.isExpanded ? 1.0 : 0.0)
transition.setFrame(layer: self.backgroundShadowLayer, frame: backgroundFrame)
transition.setCornerRadius(layer: self.backgroundShadowLayer, cornerRadius: backgroundCornerRadius)
transition.setShadowPath(layer: self.backgroundShadowLayer, path: UIBezierPath(roundedRect: CGRect(origin: CGPoint(), size: backgroundFrame.size), cornerRadius: backgroundCornerRadius).cgPath)
if let backgroundView = self.background.view {
if backgroundView.superview == nil {
self.containerView.addSubview(backgroundView)
}
transition.setFrame(view: backgroundView, frame: backgroundFrame)
}
var collapsedEmojiLeftOffset = collapsedSideInset
var collapsedEmojiRightOffset = collapsedSize.width - collapsedSideInset
for i in 0 ..< self.emojiItems.count {
let mappedIndex: Int
if i < 2 {
mappedIndex = i
} else {
mappedIndex = self.emojiItems.count - (i - 1)
}
var collapsedItemFrame = CGRect(origin: CGPoint(x: 0.0, y: floor((collapsedSize.height - collapsedEmojiSizes[mappedIndex].height) * 0.5)), size: collapsedEmojiSizes[mappedIndex])
if i < 2 {
if mappedIndex != 0 {
collapsedEmojiLeftOffset += collapsedEmojiSpacing
}
collapsedItemFrame.origin.x = collapsedEmojiLeftOffset
collapsedEmojiLeftOffset += collapsedEmojiSizes[mappedIndex].width
} else {
if mappedIndex != 0 {
collapsedEmojiRightOffset -= collapsedEmojiSpacing
}
collapsedItemFrame.origin.x = collapsedEmojiRightOffset - collapsedEmojiSizes[mappedIndex].width
collapsedEmojiRightOffset -= collapsedEmojiSizes[mappedIndex].width
}
var expandedItemFrame = CGRect(origin: CGPoint(x: floor((backgroundFrame.width - expandedEmojiWidth) * 0.5), y: expandedTopInset), size: emojiItemSizes[mappedIndex])
expandedItemFrame.origin.x += CGFloat(mappedIndex) * (emojiItemSizes[0].width + expandedEmojiSpacing)
let itemFrame: CGRect
if component.isExpanded {
itemFrame = expandedItemFrame
} else {
itemFrame = collapsedItemFrame
}
if let itemView = self.emojiItems[mappedIndex].view {
if itemView.superview == nil {
self.containerView.addSubview(itemView)
}
transition.setPosition(view: itemView, position: itemFrame.center)
itemView.bounds = CGRect(origin: CGPoint(), size: emojiItemSizes[mappedIndex])
transition.setScale(view: itemView, scale: itemFrame.height / emojiItemSizes[mappedIndex].height)
}
}
var collapsedTextFrame = CGRect(origin: CGPoint(x: collapsedEmojiLeftOffset + collapsedEmojiTextSpacing, y: floor((collapsedSize.height - collapsedTextSize.height) * 0.5)), size: collapsedTextSize)
var expandedTextFrame = CGRect(origin: CGPoint(x: floor((backgroundSize.width - expandedTextSize.width) * 0.5), y: expandedTopInset + emojiItemSizes[0].height + expandedEmojiTextSpacing), size: expandedTextSize)
if component.isExpanded {
collapsedTextFrame.origin = expandedTextFrame.origin
} else {
expandedTextFrame.origin = collapsedTextFrame.origin
}
if let collapsedTextView = self.collapsedText.view {
if collapsedTextView.superview == nil {
collapsedTextView.layer.anchorPoint = CGPoint()
self.containerView.addSubview(collapsedTextView)
} else {
if collapsedTextView.alpha != (component.isExpanded ? 0.0 : 1.0) {
if let blurFilter = CALayer.blur() {
let maxBlur: CGFloat = 8.0
if !component.isExpanded {
blurFilter.setValue(0.0 as NSNumber, forKey: "inputRadius")
collapsedTextView.layer.filters = [blurFilter]
collapsedTextView.layer.animate(from: maxBlur as NSNumber, to: 0.0 as NSNumber, keyPath: "filters.gaussianBlur.inputRadius", timingFunction: CAMediaTimingFunctionName.easeOut.rawValue, duration: 0.2, removeOnCompletion: false, completion: { [weak collapsedTextView] flag in
if flag, let collapsedTextView {
collapsedTextView.layer.filters = nil
}
})
} else {
blurFilter.setValue(maxBlur as NSNumber, forKey: "inputRadius")
collapsedTextView.layer.filters = [blurFilter]
collapsedTextView.layer.animate(from: 0.0 as NSNumber, to: maxBlur as NSNumber, keyPath: "filters.gaussianBlur.inputRadius", timingFunction: CAMediaTimingFunctionName.easeOut.rawValue, duration: 0.2, removeOnCompletion: true)
}
}
}
}
transition.setPosition(view: collapsedTextView, position: collapsedTextFrame.origin)
collapsedTextView.bounds = CGRect(origin: CGPoint(), size: collapsedTextFrame.size)
alphaTransition.setAlpha(view: collapsedTextView, alpha: component.isExpanded ? 0.0 : 1.0)
}
if let expandedTextView = self.expandedText.view {
if expandedTextView.superview == nil {
expandedTextView.layer.anchorPoint = CGPoint()
self.containerView.addSubview(expandedTextView)
} else {
if expandedTextView.alpha != (component.isExpanded ? 1.0 : 0.0) {
if let blurFilter = CALayer.blur() {
let maxBlur: CGFloat = 8.0
if component.isExpanded {
blurFilter.setValue(0.0 as NSNumber, forKey: "inputRadius")
expandedTextView.layer.filters = [blurFilter]
expandedTextView.layer.animate(from: maxBlur as NSNumber, to: 0.0 as NSNumber, keyPath: "filters.gaussianBlur.inputRadius", timingFunction: CAMediaTimingFunctionName.easeOut.rawValue, duration: 0.2, removeOnCompletion: false, completion: { [weak expandedTextView] flag in
if flag, let expandedTextView {
expandedTextView.layer.filters = nil
}
})
} else {
blurFilter.setValue(maxBlur as NSNumber, forKey: "inputRadius")
expandedTextView.layer.filters = [blurFilter]
expandedTextView.layer.animate(from: 0.0 as NSNumber, to: maxBlur as NSNumber, keyPath: "filters.gaussianBlur.inputRadius", timingFunction: CAMediaTimingFunctionName.easeOut.rawValue, duration: 0.2, removeOnCompletion: true)
}
}
}
}
transition.setPosition(view: expandedTextView, position: expandedTextFrame.origin)
expandedTextView.bounds = CGRect(origin: CGPoint(), size: expandedTextFrame.size)
alphaTransition.setAlpha(view: expandedTextView, alpha: component.isExpanded ? 1.0 : 0.0)
}
let expandedButtonOffset: CGFloat = component.isExpanded ? 0.0 : (expandedButtonBottomInset + expandedButtonTextSize.height + expandedButtonTopInset)
if self.expandedSeparatorLayer.superlayer == nil {
self.containerView.layer.addSublayer(self.expandedSeparatorLayer)
}
self.expandedSeparatorLayer.backgroundColor = component.theme.list.itemBlocksSeparatorColor.cgColor
transition.setFrame(layer: self.expandedSeparatorLayer, frame: CGRect(origin: CGPoint(x: 0.0, y: backgroundSize.height - expandedButtonBottomInset - expandedButtonTextSize.height - expandedButtonTopInset + expandedButtonOffset), size: CGSize(width: backgroundSize.width, height: UIScreenPixel)))
alphaTransition.setAlpha(layer: self.expandedSeparatorLayer, alpha: component.isExpanded ? 1.0 : 0.0)
if let expandedButtonTextView = self.expandedButtonText.view {
if expandedButtonTextView.superview == nil {
self.containerView.addSubview(expandedButtonTextView)
}
transition.setFrame(view: expandedButtonTextView, frame: CGRect(origin: CGPoint(x: floor((backgroundSize.width - expandedButtonTextSize.width) * 0.5), y: backgroundSize.height - expandedButtonBottomInset - expandedButtonTextSize.height + expandedButtonOffset), size: expandedButtonTextSize))
alphaTransition.setAlpha(view: expandedButtonTextView, alpha: component.isExpanded ? 1.0 : 0.0)
}
transition.setFrame(view: self.containerView, frame: CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: backgroundSize))
return CGSize(width: backgroundSize.width, height: collapsedSize.height)
}
}
func makeView() -> View {
return View()
}
func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
}
}