531 lines
31 KiB
Swift

import Foundation
import AsyncDisplayKit
import Display
import AnimatedStickerNode
import TelegramCore
import TelegramPresentationData
public final class ReactionContextItem {
public enum Reaction {
case like
case unlike
}
public let reaction: ReactionContextItem.Reaction
public init(reaction: ReactionContextItem.Reaction) {
self.reaction = reaction
}
}
private let largeCircleSize: CGFloat = 16.0
private let smallCircleSize: CGFloat = 8.0
private func generateBackgroundImage(foreground: UIColor, diameter: CGFloat, shadowBlur: CGFloat) -> UIImage? {
return generateImage(CGSize(width: diameter + shadowBlur * 2.0, height: diameter + shadowBlur * 2.0), rotatedContext: { size, context in
context.clear(CGRect(origin: CGPoint(), size: size))
context.setFillColor(foreground.cgColor)
context.fillEllipse(in: CGRect(origin: CGPoint(x: shadowBlur, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
})?.stretchableImage(withLeftCapWidth: Int(shadowBlur + diameter / 2.0), topCapHeight: Int(shadowBlur + diameter / 2.0))
}
private func generateBackgroundShadowImage(shadow: UIColor, diameter: CGFloat, shadowBlur: CGFloat) -> UIImage? {
return generateImage(CGSize(width: diameter * 2.0 + shadowBlur * 2.0, height: diameter + shadowBlur * 2.0), rotatedContext: { size, context in
context.clear(CGRect(origin: CGPoint(), size: size))
context.setFillColor(shadow.cgColor)
context.setShadow(offset: CGSize(), blur: shadowBlur, color: shadow.cgColor)
context.fillEllipse(in: CGRect(origin: CGPoint(x: shadowBlur, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
context.fillEllipse(in: CGRect(origin: CGPoint(x: shadowBlur + diameter, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
context.fill(CGRect(origin: CGPoint(x: shadowBlur + diameter / 2.0, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
context.setFillColor(UIColor.clear.cgColor)
context.setBlendMode(.copy)
context.fillEllipse(in: CGRect(origin: CGPoint(x: shadowBlur, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
context.fillEllipse(in: CGRect(origin: CGPoint(x: shadowBlur + diameter, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
context.fill(CGRect(origin: CGPoint(x: shadowBlur + diameter / 2.0, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
})?.stretchableImage(withLeftCapWidth: Int(diameter + shadowBlur / 2.0), topCapHeight: Int(diameter / 2.0 + shadowBlur / 2.0))
}
private func generateBubbleImage(foreground: UIColor, diameter: CGFloat, shadowBlur: CGFloat) -> UIImage? {
return generateImage(CGSize(width: diameter + shadowBlur * 2.0, height: diameter + shadowBlur * 2.0), rotatedContext: { size, context in
context.clear(CGRect(origin: CGPoint(), size: size))
context.setFillColor(foreground.cgColor)
context.fillEllipse(in: CGRect(origin: CGPoint(x: shadowBlur, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
})?.stretchableImage(withLeftCapWidth: Int(diameter / 2.0 + shadowBlur / 2.0), topCapHeight: Int(diameter / 2.0 + shadowBlur / 2.0))
}
private func generateBubbleShadowImage(shadow: UIColor, diameter: CGFloat, shadowBlur: CGFloat) -> UIImage? {
return generateImage(CGSize(width: diameter + shadowBlur * 2.0, height: diameter + shadowBlur * 2.0), rotatedContext: { size, context in
context.clear(CGRect(origin: CGPoint(), size: size))
context.setFillColor(shadow.cgColor)
context.setShadow(offset: CGSize(), blur: shadowBlur, color: shadow.cgColor)
context.fillEllipse(in: CGRect(origin: CGPoint(x: shadowBlur, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
context.setShadow(offset: CGSize(), blur: 1.0, color: shadow.cgColor)
context.fillEllipse(in: CGRect(origin: CGPoint(x: shadowBlur, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
context.setFillColor(UIColor.clear.cgColor)
context.setBlendMode(.copy)
context.fillEllipse(in: CGRect(origin: CGPoint(x: shadowBlur, y: shadowBlur), size: CGSize(width: diameter, height: diameter)))
})?.stretchableImage(withLeftCapWidth: Int(diameter / 2.0 + shadowBlur / 2.0), topCapHeight: Int(diameter / 2.0 + shadowBlur / 2.0))
}
public final class ReactionContextNode: ASDisplayNode {
private let theme: PresentationTheme
private let items: [ReactionContextItem]
private let backgroundNode: ASImageNode
private let backgroundShadowNode: ASImageNode
private let backgroundContainerNode: ASDisplayNode
private let largeCircleNode: ASImageNode
private let largeCircleShadowNode: ASImageNode
private let smallCircleNode: ASImageNode
private let smallCircleShadowNode: ASImageNode
private let contentContainer: ASDisplayNode
private var itemNodes: [ReactionNode] = []
private let disclosureButton: HighlightTrackingButtonNode
private var isExpanded: Bool = true
private var highlightedReaction: ReactionContextItem.Reaction?
private var validLayout: (CGSize, UIEdgeInsets, CGRect)?
public var reactionSelected: ((ReactionGestureItem) -> Void)?
private let hapticFeedback = HapticFeedback()
public init(account: Account, theme: PresentationTheme, items: [ReactionContextItem]) {
self.theme = theme
self.items = items
let shadowBlur: CGFloat = 5.0
self.backgroundNode = ASImageNode()
self.backgroundNode.displayWithoutProcessing = true
self.backgroundNode.displaysAsynchronously = false
self.backgroundShadowNode = ASImageNode()
self.backgroundShadowNode.displayWithoutProcessing = true
self.backgroundShadowNode.displaysAsynchronously = false
self.backgroundContainerNode = ASDisplayNode()
self.backgroundContainerNode.allowsGroupOpacity = true
self.largeCircleNode = ASImageNode()
self.largeCircleNode.displayWithoutProcessing = true
self.largeCircleNode.displaysAsynchronously = false
self.largeCircleShadowNode = ASImageNode()
self.largeCircleShadowNode.displayWithoutProcessing = true
self.largeCircleShadowNode.displaysAsynchronously = false
self.smallCircleNode = ASImageNode()
self.smallCircleNode.displayWithoutProcessing = true
self.smallCircleNode.displaysAsynchronously = false
self.smallCircleShadowNode = ASImageNode()
self.smallCircleShadowNode.displayWithoutProcessing = true
self.smallCircleShadowNode.displaysAsynchronously = false
self.backgroundNode.image = generateBackgroundImage(foreground: theme.contextMenu.backgroundColor.withAlphaComponent(1.0), diameter: 52.0, shadowBlur: shadowBlur)
self.backgroundShadowNode.image = generateBackgroundShadowImage(shadow: UIColor(white: 0.0, alpha: 0.2), diameter: 52.0, shadowBlur: shadowBlur)
self.largeCircleNode.image = generateBubbleImage(foreground: theme.contextMenu.backgroundColor.withAlphaComponent(1.0), diameter: largeCircleSize, shadowBlur: shadowBlur)
self.smallCircleNode.image = generateBubbleImage(foreground: theme.contextMenu.backgroundColor.withAlphaComponent(1.0), diameter: smallCircleSize, shadowBlur: shadowBlur)
self.largeCircleShadowNode.image = generateBubbleShadowImage(shadow: UIColor(white: 0.0, alpha: 0.2), diameter: largeCircleSize, shadowBlur: shadowBlur)
self.smallCircleShadowNode.image = generateBubbleShadowImage(shadow: UIColor(white: 0.0, alpha: 0.2), diameter: smallCircleSize, shadowBlur: shadowBlur)
self.contentContainer = ASDisplayNode()
self.contentContainer.clipsToBounds = true
self.disclosureButton = HighlightTrackingButtonNode()
self.disclosureButton.hitTestSlop = UIEdgeInsets(top: -6.0, left: -6.0, bottom: -6.0, right: -6.0)
let buttonImage = generateImage(CGSize(width: 30.0, height: 30.0), rotatedContext: { size, context in
context.clear(CGRect(origin: CGPoint(), size: size))
context.setFillColor(theme.contextMenu.dimColor.cgColor)
context.fillEllipse(in: CGRect(origin: CGPoint(), size: size))
context.setBlendMode(.copy)
context.setStrokeColor(UIColor.clear.cgColor)
context.setLineWidth(2.0)
context.setLineCap(.round)
context.setLineJoin(.round)
context.beginPath()
context.move(to: CGPoint(x: 8.0, y: size.height / 2.0 + 3.0))
context.addLine(to: CGPoint(x: size.width / 2.0, y: 11.0))
context.addLine(to: CGPoint(x: size.width - 8.0, y: size.height / 2.0 + 3.0))
context.strokePath()
})
self.disclosureButton.setImage(buttonImage, for: [])
super.init()
self.addSubnode(self.smallCircleShadowNode)
self.addSubnode(self.largeCircleShadowNode)
self.addSubnode(self.backgroundShadowNode)
self.backgroundContainerNode.addSubnode(self.smallCircleNode)
self.backgroundContainerNode.addSubnode(self.largeCircleNode)
self.backgroundContainerNode.addSubnode(self.backgroundNode)
self.addSubnode(self.backgroundContainerNode)
self.contentContainer.addSubnode(self.disclosureButton)
self.itemNodes = self.items.map { item in
let reactionItem: ReactionGestureItem
switch item.reaction {
case .like:
reactionItem = .like
case .unlike:
reactionItem = .unlike
}
return ReactionNode(account: account, theme: theme, reaction: reactionItem, maximizedReactionSize: 30.0, loadFirstFrame: true)
}
self.itemNodes.forEach(self.contentContainer.addSubnode)
self.addSubnode(self.contentContainer)
self.disclosureButton.addTarget(self, action: #selector(self.disclosurePressed), forControlEvents: .touchUpInside)
self.disclosureButton.highligthedChanged = { [weak self] highlighted in
if highlighted {
self?.disclosureButton.layer.animateScale(from: 1.0, to: 0.8, duration: 0.15, removeOnCompletion: false)
} else {
self?.disclosureButton.layer.animateScale(from: 0.8, to: 1.0, duration: 0.25)
}
}
}
override public func didLoad() {
super.didLoad()
self.view.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(self.tapGesture(_:))))
}
public func updateLayout(size: CGSize, insets: UIEdgeInsets, anchorRect: CGRect, transition: ContainedViewLayoutTransition) {
self.updateLayout(size: size, insets: insets, anchorRect: anchorRect, transition: transition, animateInFromAnchorRect: nil, animateOutToAnchorRect: nil)
}
private func calculateBackgroundFrame(containerSize: CGSize, insets: UIEdgeInsets, anchorRect: CGRect, contentSize: CGSize) -> (CGRect, Bool) {
var contentSize = contentSize
contentSize.width = max(52.0, contentSize.width)
contentSize.height = 52.0
let sideInset: CGFloat = 12.0
let backgroundOffset: CGPoint = CGPoint(x: 22.0, y: -7.0)
var rect: CGRect
let isLeftAligned: Bool
if anchorRect.maxX < containerSize.width - backgroundOffset.x - sideInset {
rect = CGRect(origin: CGPoint(x: anchorRect.maxX - contentSize.width + backgroundOffset.x, y: anchorRect.minY - contentSize.height + backgroundOffset.y), size: contentSize)
isLeftAligned = true
} else {
rect = CGRect(origin: CGPoint(x: anchorRect.minX - backgroundOffset.x - 4.0, y: anchorRect.minY - contentSize.height + backgroundOffset.y), size: contentSize)
isLeftAligned = false
}
rect.origin.x = max(sideInset, rect.origin.x)
rect.origin.y = max(insets.top + sideInset, rect.origin.y)
rect.origin.x = min(containerSize.width - contentSize.width - sideInset, rect.origin.x)
return (rect, isLeftAligned)
}
private func updateLayout(size: CGSize, insets: UIEdgeInsets, anchorRect: CGRect, transition: ContainedViewLayoutTransition, animateInFromAnchorRect: CGRect?, animateOutToAnchorRect: CGRect?, animateReactionHighlight: Bool = false) {
self.validLayout = (size, insets, anchorRect)
let sideInset: CGFloat = 12.0
let itemSpacing: CGFloat = 6.0
let minimizedItemSize: CGFloat = 30.0
let maximizedItemSize: CGFloat = 30.0 - 18.0
let shadowBlur: CGFloat = 5.0
let verticalInset: CGFloat = 13.0
let rowHeight: CGFloat = 30.0
let rowSpacing: CGFloat = itemSpacing
let columnCount = min(6, self.items.count)
let contentWidth = CGFloat(columnCount) * minimizedItemSize + (CGFloat(columnCount) - 1.0) * itemSpacing + sideInset * 2.0
let rowCount = self.items.count / columnCount + (self.items.count % columnCount == 0 ? 0 : 1)
let expandedRowCount = self.isExpanded ? rowCount : 1
let contentHeight = verticalInset * 2.0 + rowHeight * CGFloat(expandedRowCount) + CGFloat(expandedRowCount - 1) * rowSpacing
let (backgroundFrame, isLeftAligned) = self.calculateBackgroundFrame(containerSize: size, insets: insets, anchorRect: anchorRect, contentSize: CGSize(width: contentWidth, height: contentHeight))
transition.updateFrame(node: self.contentContainer, frame: backgroundFrame)
for i in 0 ..< self.items.count {
let rowIndex = i / columnCount
let columnIndex = i % columnCount
let row = CGFloat(rowIndex)
let column = CGFloat(columnIndex)
let isHighlighted = false
var itemSize: CGFloat = minimizedItemSize
var itemOffset: CGFloat = 0.0
if isHighlighted {
let updatedSize = itemSize * 1.15
itemOffset = (updatedSize - itemSize) / 2.0
itemSize = updatedSize
}
let itemFrame = CGRect(origin: CGPoint(x: sideInset + column * (minimizedItemSize + itemSpacing) - itemOffset, y: verticalInset + row * (rowHeight + rowSpacing) + floor((rowHeight - minimizedItemSize) / 2.0) - itemOffset), size: CGSize(width: itemSize, height: itemSize))
transition.updateFrame(node: self.itemNodes[i], frame: itemFrame, beginWithCurrentState: true)
self.itemNodes[i].updateLayout(size: CGSize(width: itemSize, height: itemSize), scale: itemSize / (maximizedItemSize + 18.0), transition: transition, displayText: false)
self.itemNodes[i].updateIsAnimating(false, animated: false)
if rowIndex != 0 || columnIndex == columnCount - 1 {
if self.isExpanded {
if self.itemNodes[i].alpha.isZero {
self.itemNodes[i].alpha = 1.0
if transition.isAnimated {
let delayOffset: Double = 1.0 - Double(columnIndex) / Double(columnCount - 1)
self.itemNodes[i].layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: 0.4 + delayOffset * 0.32, initialVelocity: 0.0, damping: 95.0)
self.itemNodes[i].layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.05)
}
}
} else {
self.itemNodes[i].alpha = 0.0
}
} else {
self.itemNodes[i].alpha = 1.0
}
if rowIndex == 0 && columnIndex == columnCount - 1 {
transition.updateFrame(node: self.disclosureButton, frame: itemFrame)
if self.isExpanded {
if self.disclosureButton.alpha.isEqual(to: 1.0) {
self.disclosureButton.alpha = 0.0
if transition.isAnimated {
self.disclosureButton.layer.animateScale(from: 0.8, to: 0.1, duration: 0.2, removeOnCompletion: false)
self.disclosureButton.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.2, completion: { [weak self] _ in
self?.disclosureButton.layer.removeAnimation(forKey: "scale")
})
}
}
} else {
self.disclosureButton.alpha = 1.0
}
}
}
let isInOverflow = backgroundFrame.maxY > anchorRect.minY
let backgroundAlpha: CGFloat = isInOverflow ? 1.0 : 0.8
let shadowAlpha: CGFloat = isInOverflow ? 1.0 : 0.0
transition.updateAlpha(node: self.backgroundContainerNode, alpha: backgroundAlpha)
transition.updateAlpha(node: self.backgroundShadowNode, alpha: shadowAlpha)
transition.updateAlpha(node: self.largeCircleShadowNode, alpha: shadowAlpha)
transition.updateAlpha(node: self.smallCircleShadowNode, alpha: shadowAlpha)
transition.updateFrame(node: self.backgroundContainerNode, frame: CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: CGSize(width: size.width, height: size.height)))
transition.updateFrame(node: self.backgroundNode, frame: backgroundFrame.insetBy(dx: -shadowBlur, dy: -shadowBlur))
transition.updateFrame(node: self.backgroundShadowNode, frame: backgroundFrame.insetBy(dx: -shadowBlur, dy: -shadowBlur))
let largeCircleFrame: CGRect
let smallCircleFrame: CGRect
if isLeftAligned {
largeCircleFrame = CGRect(origin: CGPoint(x: backgroundFrame.midX - floor(largeCircleSize / 2.0), y: backgroundFrame.maxY - largeCircleSize / 2.0), size: CGSize(width: largeCircleSize, height: largeCircleSize))
smallCircleFrame = CGRect(origin: CGPoint(x: largeCircleFrame.maxX - 3.0, y: largeCircleFrame.maxY + 2.0), size: CGSize(width: smallCircleSize, height: smallCircleSize))
} else {
largeCircleFrame = CGRect(origin: CGPoint(x: backgroundFrame.midX - floor(largeCircleSize / 2.0), y: backgroundFrame.maxY - largeCircleSize / 2.0), size: CGSize(width: largeCircleSize, height: largeCircleSize))
smallCircleFrame = CGRect(origin: CGPoint(x: largeCircleFrame.minX + 3.0 - smallCircleSize, y: largeCircleFrame.maxY + 2.0), size: CGSize(width: smallCircleSize, height: smallCircleSize))
}
transition.updateFrame(node: self.largeCircleNode, frame: largeCircleFrame.insetBy(dx: -shadowBlur, dy: -shadowBlur))
transition.updateFrame(node: self.largeCircleShadowNode, frame: largeCircleFrame.insetBy(dx: -shadowBlur, dy: -shadowBlur))
transition.updateFrame(node: self.smallCircleNode, frame: smallCircleFrame.insetBy(dx: -shadowBlur, dy: -shadowBlur))
transition.updateFrame(node: self.smallCircleShadowNode, frame: smallCircleFrame.insetBy(dx: -shadowBlur, dy: -shadowBlur))
if let animateInFromAnchorRect = animateInFromAnchorRect {
let springDuration: Double = 0.42
let springDamping: CGFloat = 104.0
let sourceBackgroundFrame = self.calculateBackgroundFrame(containerSize: size, insets: insets, anchorRect: animateInFromAnchorRect, contentSize: CGSize(width: contentWidth, height: contentHeight)).0
self.layer.animateSpring(from: NSValue(cgPoint: CGPoint(x: sourceBackgroundFrame.minX - backgroundFrame.minX, y: sourceBackgroundFrame.minY - backgroundFrame.minY)), to: NSValue(cgPoint: CGPoint()), keyPath: "position", duration: springDuration, initialVelocity: 0.0, damping: springDamping, additive: true)
} else if let animateOutToAnchorRect = animateOutToAnchorRect {
let targetBackgroundFrame = self.calculateBackgroundFrame(containerSize: size, insets: insets, anchorRect: animateOutToAnchorRect, contentSize: CGSize(width: contentWidth, height: contentHeight)).0
self.layer.animatePosition(from: CGPoint(), to: CGPoint(x: targetBackgroundFrame.minX - backgroundFrame.minX, y: targetBackgroundFrame.minY - backgroundFrame.minY), duration: 0.2, removeOnCompletion: false, additive: true)
}
}
public func animateIn(from sourceAnchorRect: CGRect) {
self.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.15)
if let (size, insets, anchorRect) = self.validLayout {
self.updateLayout(size: size, insets: insets, anchorRect: anchorRect, transition: .immediate, animateInFromAnchorRect: sourceAnchorRect, animateOutToAnchorRect: nil)
}
let smallCircleDuration: Double = 0.5
let largeCircleDuration: Double = 0.5
let largeCircleDelay: Double = 0.08
let mainCircleDuration: Double = 0.5
let mainCircleDelay: Double = 0.1
self.smallCircleNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: smallCircleDuration)
self.smallCircleShadowNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: smallCircleDuration)
self.largeCircleNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.15, delay: largeCircleDelay)
self.largeCircleNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: largeCircleDuration, delay: largeCircleDelay)
self.largeCircleShadowNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: largeCircleDuration, delay: largeCircleDelay)
self.backgroundNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.15, delay: mainCircleDelay)
self.backgroundNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: mainCircleDuration, delay: mainCircleDelay)
self.backgroundShadowNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: mainCircleDuration, delay: mainCircleDelay)
if let itemNode = self.itemNodes.first {
itemNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.15, delay: mainCircleDelay)
itemNode.didAppear()
itemNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: mainCircleDuration, delay: mainCircleDelay, completion: { _ in
})
}
}
public func animateOut(to targetAnchorRect: CGRect?, animatingOutToReaction: Bool) {
self.backgroundNode.layer.animateAlpha(from: self.backgroundNode.alpha, to: 0.0, duration: 0.2, removeOnCompletion: false)
self.backgroundShadowNode.layer.animateAlpha(from: self.backgroundShadowNode.alpha, to: 0.0, duration: 0.2, removeOnCompletion: false)
self.largeCircleNode.layer.animateAlpha(from: self.largeCircleNode.alpha, to: 0.0, duration: 0.2, removeOnCompletion: false)
self.largeCircleShadowNode.layer.animateAlpha(from: self.largeCircleShadowNode.alpha, to: 0.0, duration: 0.2, removeOnCompletion: false)
self.smallCircleNode.layer.animateAlpha(from: self.smallCircleNode.alpha, to: 0.0, duration: 0.2, removeOnCompletion: false)
self.smallCircleShadowNode.layer.animateAlpha(from: self.smallCircleShadowNode.alpha, to: 0.0, duration: 0.2, removeOnCompletion: false)
for itemNode in self.itemNodes {
itemNode.layer.animateAlpha(from: itemNode.alpha, to: 0.0, duration: 0.2, removeOnCompletion: false)
}
self.disclosureButton.layer.animateAlpha(from: self.disclosureButton.alpha, to: 0.0, duration: 0.2, removeOnCompletion: false)
if let targetAnchorRect = targetAnchorRect, let (size, insets, anchorRect) = self.validLayout {
self.updateLayout(size: size, insets: insets, anchorRect: anchorRect, transition: .immediate, animateInFromAnchorRect: nil, animateOutToAnchorRect: targetAnchorRect)
}
}
public func animateOutToReaction(value: String, targetEmptyNode: ASDisplayNode, targetFilledNode: ASDisplayNode, hideNode: Bool, completion: @escaping () -> Void) {
for itemNode in self.itemNodes {
switch itemNode.reaction {
case .like:
if let snapshotView = itemNode.view.snapshotContentTree(keepTransform: true), let targetSnapshotView = targetFilledNode.view.snapshotContentTree() {
targetSnapshotView.frame = self.view.convert(targetFilledNode.bounds, from: targetFilledNode.view)
itemNode.isHidden = true
self.view.addSubview(targetSnapshotView)
self.view.addSubview(snapshotView)
snapshotView.frame = itemNode.view.convert(itemNode.view.bounds, to: self.view)
var completedTarget = false
let intermediateCompletion: () -> Void = {
if completedTarget {
completion()
}
}
let targetPosition = self.view.convert(targetFilledNode.bounds.center, from: targetFilledNode.view)
let duration: Double = 0.3
if hideNode {
targetFilledNode.isHidden = true
}
snapshotView.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.25, removeOnCompletion: false)
targetSnapshotView.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.2)
targetSnapshotView.layer.animateScale(from: snapshotView.bounds.width / targetSnapshotView.bounds.width, to: 0.5, duration: 0.3, removeOnCompletion: false)
let sourcePoint = snapshotView.center
let midPoint = CGPoint(x: (sourcePoint.x + targetPosition.x) / 2.0, y: sourcePoint.y - 30.0)
let x1 = sourcePoint.x
let y1 = sourcePoint.y
let x2 = midPoint.x
let y2 = midPoint.y
let x3 = targetPosition.x
let y3 = targetPosition.y
let a = (x3 * (y2 - y1) + x2 * (y1 - y3) + x1 * (y3 - y2)) / ((x1 - x2) * (x1 - x3) * (x2 - x3))
let b = (x1 * x1 * (y2 - y3) + x3 * x3 * (y1 - y2) + x2 * x2 * (y3 - y1)) / ((x1 - x2) * (x1 - x3) * (x2 - x3))
let c = (x2 * x2 * (x3 * y1 - x1 * y3) + x2 * (x1 * x1 * y3 - x3 * x3 * y1) + x1 * x3 * (x3 - x1) * y2) / ((x1 - x2) * (x1 - x3) * (x2 - x3))
var keyframes: [AnyObject] = []
for i in 0 ..< 10 {
let k = CGFloat(i) / CGFloat(10 - 1)
let x = sourcePoint.x * (1.0 - k) + targetPosition.x * k
let y = a * x * x + b * x + c
keyframes.append(NSValue(cgPoint: CGPoint(x: x, y: y)))
}
snapshotView.layer.animateKeyframes(values: keyframes, duration: 0.3, keyPath: "position", removeOnCompletion: false, completion: { [weak self] _ in
if let strongSelf = self {
strongSelf.hapticFeedback.tap()
}
completedTarget = true
if hideNode {
targetFilledNode.isHidden = false
targetFilledNode.layer.animateSpring(from: 0.5 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: duration, initialVelocity: 0.0, damping: 90.0)
targetEmptyNode.layer.animateSpring(from: 0.5 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: duration, initialVelocity: 0.0, damping: 90.0)
}
intermediateCompletion()
})
targetSnapshotView.layer.animateKeyframes(values: keyframes, duration: 0.3, keyPath: "position", removeOnCompletion: false)
snapshotView.layer.animateScale(from: 1.0, to: (targetSnapshotView.bounds.width * 0.5) / snapshotView.bounds.width, duration: 0.3, removeOnCompletion: false)
return
}
default:
break
}
}
completion()
}
override public func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
let contentPoint = self.contentContainer.view.convert(point, from: self.view)
if !self.disclosureButton.alpha.isZero {
if let result = self.disclosureButton.hitTest(self.disclosureButton.view.convert(point, from: self.view), with: event) {
return result
}
}
for itemNode in self.itemNodes {
if !itemNode.alpha.isZero && itemNode.frame.contains(contentPoint) {
return self.view
}
}
return nil
}
@objc private func tapGesture(_ recognizer: UITapGestureRecognizer) {
if case .ended = recognizer.state {
let point = recognizer.location(in: self.view)
if let reaction = self.reaction(at: point) {
self.reactionSelected?(reaction)
}
}
}
public func reaction(at point: CGPoint) -> ReactionGestureItem? {
let contentPoint = self.contentContainer.view.convert(point, from: self.view)
for itemNode in self.itemNodes {
if !itemNode.alpha.isZero && itemNode.frame.contains(contentPoint) {
return itemNode.reaction
}
}
for itemNode in self.itemNodes {
if !itemNode.alpha.isZero && itemNode.frame.insetBy(dx: -8.0, dy: -8.0).contains(contentPoint) {
return itemNode.reaction
}
}
return nil
}
public func setHighlightedReaction(_ value: ReactionContextItem.Reaction?) {
self.highlightedReaction = value
if let (size, insets, anchorRect) = self.validLayout {
self.updateLayout(size: size, insets: insets, anchorRect: anchorRect, transition: .animated(duration: 0.18, curve: .easeInOut), animateInFromAnchorRect: nil, animateOutToAnchorRect: nil, animateReactionHighlight: true)
}
}
@objc private func disclosurePressed() {
self.isExpanded = true
if let (size, insets, anchorRect) = self.validLayout {
self.updateLayout(size: size, insets: insets, anchorRect: anchorRect, transition: .animated(duration: 0.3, curve: .spring), animateInFromAnchorRect: nil, animateOutToAnchorRect: nil, animateReactionHighlight: true)
}
}
}