Swiftgram/submodules/InviteLinksUI/Sources/ItemListInviteLinkItem.swift
Ilya Laktyushin ad2678645d Various fixes
2021-02-11 22:51:56 +04:00

873 lines
42 KiB
Swift

import Foundation
import UIKit
import Display
import AsyncDisplayKit
import SwiftSignalKit
import SyncCore
import TelegramPresentationData
import ItemListUI
import ShimmerEffect
func invitationAvailability(_ invite: ExportedInvitation) -> CGFloat {
if invite.isRevoked {
return 0.0
}
let currentTime = Int32(CFAbsoluteTimeGetCurrent() + kCFAbsoluteTimeIntervalSince1970)
var availability: CGFloat = 1.0
if let expireDate = invite.expireDate {
let startDate = invite.startDate ?? invite.date
let fraction = CGFloat(expireDate - currentTime) / CGFloat(expireDate - startDate)
availability = min(fraction, availability)
}
if let usageLimit = invite.usageLimit, let count = invite.count {
let fraction = 1.0 - (CGFloat(count) / CGFloat(usageLimit))
availability = min(fraction, availability)
}
return max(0.0, min(1.0, availability))
}
private enum ItemBackgroundColor: Equatable {
case blue
case green
case yellow
case red
case gray
var colors: (top: UIColor, bottom: UIColor, text: UIColor) {
switch self {
case .blue:
return (UIColor(rgb: 0x00b5f7), UIColor(rgb: 0x00b2f6), UIColor(rgb: 0xa7f4ff))
case .green:
return (UIColor(rgb: 0x4aca62), UIColor(rgb: 0x43c85c), UIColor(rgb: 0xc5ffe6))
case .yellow:
return (UIColor(rgb: 0xf8a953), UIColor(rgb: 0xf7a64e), UIColor(rgb: 0xfeffd7))
case .red:
return (UIColor(rgb: 0xf2656a), UIColor(rgb: 0xf25f65), UIColor(rgb: 0xffd3de))
case .gray:
return (UIColor(rgb: 0xa8b2bb), UIColor(rgb: 0xa2abb4), UIColor(rgb: 0xe3e6e8))
}
}
}
public class ItemListInviteLinkItem: ListViewItem, ItemListItem {
let presentationData: ItemListPresentationData
let invite: ExportedInvitation?
let share: Bool
public let sectionId: ItemListSectionId
let style: ItemListStyle
let tapAction: ((ExportedInvitation) -> Void)?
let contextAction: ((ExportedInvitation, ASDisplayNode, ContextGesture?) -> Void)?
public let tag: ItemListItemTag?
public init(
presentationData: ItemListPresentationData,
invite: ExportedInvitation?,
share: Bool,
sectionId: ItemListSectionId,
style: ItemListStyle,
tapAction: ((ExportedInvitation) -> Void)?,
contextAction: ((ExportedInvitation, ASDisplayNode, ContextGesture?) -> Void)?,
tag: ItemListItemTag? = nil
) {
self.presentationData = presentationData
self.invite = invite
self.share = share
self.sectionId = sectionId
self.style = style
self.tapAction = tapAction
self.contextAction = contextAction
self.tag = tag
}
public func nodeConfiguredForParams(async: @escaping (@escaping () -> Void) -> Void, params: ListViewItemLayoutParams, synchronousLoads: Bool, previousItem: ListViewItem?, nextItem: ListViewItem?, completion: @escaping (ListViewItemNode, @escaping () -> (Signal<Void, NoError>?, (ListViewItemApply) -> Void)) -> Void) {
async {
var firstWithHeader = false
var last = false
if self.style == .plain {
if previousItem == nil {
firstWithHeader = true
}
if nextItem == nil {
last = true
}
}
let node = ItemListInviteLinkItemNode()
let (layout, apply) = node.asyncLayout()(self, params, itemListNeighbors(item: self, topItem: previousItem as? ItemListItem, bottomItem: nextItem as? ItemListItem), firstWithHeader, last)
node.contentSize = layout.contentSize
node.insets = layout.insets
Queue.mainQueue().async {
completion(node, {
return (nil, { _ in apply() })
})
}
}
}
public func updateNode(async: @escaping (@escaping () -> Void) -> Void, node: @escaping () -> ListViewItemNode, params: ListViewItemLayoutParams, previousItem: ListViewItem?, nextItem: ListViewItem?, animation: ListViewItemUpdateAnimation, completion: @escaping (ListViewItemNodeLayout, @escaping (ListViewItemApply) -> Void) -> Void) {
Queue.mainQueue().async {
if let nodeValue = node() as? ItemListInviteLinkItemNode {
let makeLayout = nodeValue.asyncLayout()
async {
var firstWithHeader = false
var last = false
if self.style == .plain {
if previousItem == nil {
firstWithHeader = true
}
if nextItem == nil {
last = true
}
}
let (layout, apply) = makeLayout(self, params, itemListNeighbors(item: self, topItem: previousItem as? ItemListItem, bottomItem: nextItem as? ItemListItem), firstWithHeader, last)
Queue.mainQueue().async {
completion(layout, { _ in
apply()
})
}
}
}
}
}
public var selectable: Bool = true
public func selected(listView: ListView) {
listView.clearHighlightAnimated(true)
if let invite = self.invite {
self.tapAction?(invite)
}
}
}
public class ItemListInviteLinkItemNode: ListViewItemNode, ItemListItemNode {
private let backgroundNode: ASDisplayNode
private let topStripeNode: ASDisplayNode
private let bottomStripeNode: ASDisplayNode
private let highlightedBackgroundNode: ASDisplayNode
private let maskNode: ASImageNode
private let extractedBackgroundImageNode: ASImageNode
private let containerNode: ContextControllerSourceNode
private let contextSourceNode: ContextExtractedContentContainingNode
private var extractedRect: CGRect?
private var nonExtractedRect: CGRect?
private let offsetContainerNode: ASDisplayNode
private let iconBackgroundNode: ASDisplayNode
private let iconNode: ASImageNode
private var timerNode: TimerNode?
private let titleNode: TextNode
private let subtitleNode: TextNode
private var placeholderNode: ShimmerEffectNode?
private var absoluteLocation: (CGRect, CGSize)?
private var currentColor: ItemBackgroundColor?
private var layoutParams: (ItemListInviteLinkItem, ListViewItemLayoutParams, ItemListNeighbors, Bool, Bool)?
public var tag: ItemListItemTag?
public init() {
self.backgroundNode = ASDisplayNode()
self.backgroundNode.isLayerBacked = true
self.topStripeNode = ASDisplayNode()
self.topStripeNode.isLayerBacked = true
self.bottomStripeNode = ASDisplayNode()
self.bottomStripeNode.isLayerBacked = true
self.maskNode = ASImageNode()
self.extractedBackgroundImageNode = ASImageNode()
self.extractedBackgroundImageNode.displaysAsynchronously = false
self.extractedBackgroundImageNode.alpha = 0.0
self.contextSourceNode = ContextExtractedContentContainingNode()
self.containerNode = ContextControllerSourceNode()
self.offsetContainerNode = ASDisplayNode()
self.iconBackgroundNode = ASImageNode()
self.iconBackgroundNode.setLayerBlock { () -> CALayer in
return CAShapeLayer()
}
self.iconNode = ASImageNode()
self.iconNode.displaysAsynchronously = false
self.iconNode.displayWithoutProcessing = true
self.iconNode.contentMode = .center
self.titleNode = TextNode()
self.titleNode.isUserInteractionEnabled = false
self.titleNode.contentMode = .left
self.titleNode.contentsScale = UIScreen.main.scale
self.subtitleNode = TextNode()
self.subtitleNode.isUserInteractionEnabled = false
self.subtitleNode.contentMode = .left
self.subtitleNode.contentsScale = UIScreen.main.scale
self.highlightedBackgroundNode = ASDisplayNode()
self.highlightedBackgroundNode.isLayerBacked = true
super.init(layerBacked: false, dynamicBounce: false, rotated: false, seeThrough: false)
self.isAccessibilityElement = true
self.containerNode.addSubnode(self.contextSourceNode)
self.containerNode.targetNodeForActivationProgress = self.contextSourceNode.contentNode
self.addSubnode(self.containerNode)
self.contextSourceNode.contentNode.addSubnode(self.extractedBackgroundImageNode)
self.contextSourceNode.contentNode.addSubnode(self.offsetContainerNode)
self.offsetContainerNode.addSubnode(self.iconBackgroundNode)
self.offsetContainerNode.addSubnode(self.iconNode)
self.offsetContainerNode.addSubnode(self.titleNode)
self.offsetContainerNode.addSubnode(self.subtitleNode)
self.containerNode.activated = { [weak self] gesture, _ in
guard let strongSelf = self, let item = strongSelf.layoutParams?.0, let invite = item.invite, let contextAction = item.contextAction else {
gesture.cancel()
return
}
contextAction(invite, strongSelf.contextSourceNode, gesture)
}
self.contextSourceNode.willUpdateIsExtractedToContextPreview = { [weak self] isExtracted, transition in
guard let strongSelf = self, let item = strongSelf.layoutParams?.0 else {
return
}
if isExtracted {
strongSelf.extractedBackgroundImageNode.image = generateStretchableFilledCircleImage(diameter: 28.0, color: item.presentationData.theme.list.plainBackgroundColor)
}
if let extractedRect = strongSelf.extractedRect, let nonExtractedRect = strongSelf.nonExtractedRect {
let rect = isExtracted ? extractedRect : nonExtractedRect
transition.updateFrame(node: strongSelf.extractedBackgroundImageNode, frame: rect)
}
transition.updateSublayerTransformOffset(layer: strongSelf.offsetContainerNode.layer, offset: CGPoint(x: isExtracted ? 12.0 : 0.0, y: 0.0))
transition.updateAlpha(node: strongSelf.extractedBackgroundImageNode, alpha: isExtracted ? 1.0 : 0.0, completion: { _ in
if !isExtracted {
self?.extractedBackgroundImageNode.image = nil
}
})
}
}
public override func didLoad() {
super.didLoad()
if let shapeLayer = self.iconBackgroundNode.layer as? CAShapeLayer {
shapeLayer.path = UIBezierPath(ovalIn: CGRect(x: 0.0, y: 0.0, width: 40.0, height: 40.0)).cgPath
}
}
public func asyncLayout() -> (_ item: ItemListInviteLinkItem, _ params: ListViewItemLayoutParams, _ neighbors: ItemListNeighbors, _ firstWithHeader: Bool, _ last: Bool) -> (ListViewItemNodeLayout, () -> Void) {
let makeTitleLayout = TextNode.asyncLayout(self.titleNode)
let makeSubtitleLayout = TextNode.asyncLayout(self.subtitleNode)
let currentItem = self.layoutParams?.0
return { item, params, neighbors, firstWithHeader, last in
var updatedTheme: PresentationTheme?
let titleFont = Font.regular(item.presentationData.fontSize.itemListBaseFontSize)
let subtitleFont = Font.regular(floor(item.presentationData.fontSize.itemListBaseFontSize * 14.0 / 17.0))
if currentItem?.presentationData.theme !== item.presentationData.theme {
updatedTheme = item.presentationData.theme
}
let currentTime = Int32(CFAbsoluteTimeGetCurrent() + kCFAbsoluteTimeIntervalSince1970)
let availability = item.invite.flatMap { invitationAvailability($0) } ?? 0.0
let color: ItemBackgroundColor
let nextColor: ItemBackgroundColor
let transitionFraction: CGFloat
if let invite = item.invite {
if invite.isRevoked {
color = .gray
nextColor = .gray
transitionFraction = 0.0
} else if invite.expireDate == nil && invite.usageLimit == nil {
color = .blue
nextColor = .blue
transitionFraction = 0.0
} else if availability >= 0.5 {
color = .green
nextColor = .yellow
transitionFraction = (availability - 0.5) / 0.5
} else if availability > 0.0 {
color = .yellow
nextColor = .red
transitionFraction = availability / 0.5
} else {
color = .red
nextColor = .red
transitionFraction = 0.0
}
} else {
color = .gray
nextColor = .gray
transitionFraction = 0.0
}
let topColor = color.colors.top
let nextTopColor = nextColor.colors.top
let iconColor: UIColor
if let _ = item.invite {
if case .blue = color {
iconColor = item.presentationData.theme.list.itemAccentColor
} else {
iconColor = nextTopColor.mixedWith(topColor, alpha: transitionFraction)
}
} else {
iconColor = item.presentationData.theme.list.mediaPlaceholderColor
}
let inviteLink = item.invite?.link.replacingOccurrences(of: "https://", with: "") ?? ""
var titleText = inviteLink
var subtitleText: String = ""
var timerValue: TimerNode.Value?
if let invite = item.invite {
let count = invite.count ?? 0
if count > 0 {
subtitleText = item.presentationData.strings.InviteLink_PeopleJoinedShort(count)
} else {
if let usageLimit = invite.usageLimit, count == 0 {
subtitleText = item.presentationData.strings.InviteLink_PeopleCanJoin(usageLimit)
} else {
subtitleText = availability.isZero ? item.presentationData.strings.InviteLink_PeopleJoinedShortNoneExpired : item.presentationData.strings.InviteLink_PeopleJoinedShortNone
}
}
if invite.isRevoked {
if !subtitleText.isEmpty {
subtitleText += ""
}
subtitleText += item.presentationData.strings.InviteLink_Revoked
} else {
var isExpired = false
if let expireDate = invite.expireDate, currentTime >= expireDate {
isExpired = true
}
var isFull = false
if let usageLimit = invite.usageLimit {
if !isExpired {
let remaining = usageLimit - count
if remaining > 0 && remaining != usageLimit {
subtitleText += ", "
subtitleText += item.presentationData.strings.InviteLink_PeopleRemaining(remaining)
let fraction = CGFloat(remaining) / CGFloat(usageLimit)
if abs(fraction - availability) < 0.0001 {
timerValue = .fraction(fraction)
}
} else if remaining == 0 {
isFull = true
if !subtitleText.isEmpty {
subtitleText += ""
}
subtitleText += item.presentationData.strings.InviteLink_UsageLimitReached
}
}
}
if let expireDate = invite.expireDate, !isFull {
if !isExpired {
if !subtitleText.isEmpty {
subtitleText += ""
}
let elapsedTime = expireDate - currentTime
if elapsedTime >= 86400 {
subtitleText += item.presentationData.strings.InviteLink_ExpiresIn(timeIntervalString(strings: item.presentationData.strings, value: elapsedTime)).0
} else {
subtitleText += item.presentationData.strings.InviteLink_ExpiresIn(textForTimeout(value: elapsedTime)).0
}
if timerValue == nil {
timerValue = .timestamp(creation: invite.startDate ?? invite.date, deadline: expireDate)
}
} else {
if !subtitleText.isEmpty {
subtitleText += ""
}
subtitleText += item.presentationData.strings.InviteLink_Expired
}
}
}
} else {
titleText = " "
subtitleText = " "
}
let titleAttributedString = NSAttributedString(string: titleText, font: titleFont, textColor: item.presentationData.theme.list.itemPrimaryTextColor)
let subtitleAttributedString = NSAttributedString(string: subtitleText, font: subtitleFont, textColor: item.presentationData.theme.list.itemSecondaryTextColor)
let leftInset: CGFloat = 65.0 + params.leftInset
let rightInset: CGFloat = 16.0 + params.rightInset
let verticalInset: CGFloat = subtitleAttributedString.string.isEmpty ? 14.0 : 8.0
let (titleLayout, titleApply) = makeTitleLayout(TextNodeLayoutArguments(attributedString: titleAttributedString, backgroundColor: nil, maximumNumberOfLines: 1, truncationType: .end, constrainedSize: CGSize(width: params.width - leftInset - rightInset, height: CGFloat.greatestFiniteMagnitude), alignment: .natural, cutout: nil, insets: UIEdgeInsets()))
let (subtitleLayout, subtitleApply) = makeSubtitleLayout(TextNodeLayoutArguments(attributedString: subtitleAttributedString, backgroundColor: nil, maximumNumberOfLines: 1, truncationType: .end, constrainedSize: CGSize(width: params.width - leftInset - rightInset, height: CGFloat.greatestFiniteMagnitude), alignment: .natural, cutout: nil, insets: UIEdgeInsets()))
let titleSpacing: CGFloat = 1.0
let minHeight: CGFloat = titleLayout.size.height + verticalInset * 2.0
let rawHeight: CGFloat = verticalInset * 2.0 + titleLayout.size.height + titleSpacing + subtitleLayout.size.height
var insets: UIEdgeInsets
let itemBackgroundColor: UIColor
let itemSeparatorColor: UIColor
switch item.style {
case .plain:
itemBackgroundColor = item.presentationData.theme.list.plainBackgroundColor
itemSeparatorColor = item.presentationData.theme.list.itemPlainSeparatorColor
insets = itemListNeighborsPlainInsets(neighbors)
insets.top = firstWithHeader ? 29.0 : 0.0
insets.bottom = 0.0
case .blocks:
itemBackgroundColor = item.presentationData.theme.list.itemBlocksBackgroundColor
itemSeparatorColor = item.presentationData.theme.list.itemBlocksSeparatorColor
insets = itemListNeighborsGroupedInsets(neighbors)
}
let contentSize = CGSize(width: params.width, height: max(minHeight, rawHeight))
let separatorHeight = UIScreenPixel
let layout = ListViewItemNodeLayout(contentSize: contentSize, insets: insets)
return (layout, { [weak self] in
if let strongSelf = self {
strongSelf.layoutParams = (item, params, neighbors, firstWithHeader, last)
strongSelf.accessibilityLabel = titleAttributedString.string
strongSelf.accessibilityValue = subtitleAttributedString.string
strongSelf.containerNode.frame = CGRect(origin: CGPoint(), size: layout.contentSize)
strongSelf.contextSourceNode.frame = CGRect(origin: CGPoint(), size: layout.contentSize)
strongSelf.offsetContainerNode.frame = CGRect(origin: CGPoint(), size: layout.contentSize)
strongSelf.contextSourceNode.contentNode.frame = CGRect(origin: CGPoint(), size: layout.contentSize)
strongSelf.containerNode.isGestureEnabled = item.contextAction != nil
let nonExtractedRect = CGRect(origin: CGPoint(), size: CGSize(width: layout.contentSize.width - 16.0, height: layout.contentSize.height))
let extractedRect = CGRect(origin: CGPoint(), size: layout.contentSize).insetBy(dx: 16.0 + params.leftInset, dy: 0.0)
strongSelf.extractedRect = extractedRect
strongSelf.nonExtractedRect = nonExtractedRect
if strongSelf.contextSourceNode.isExtractedToContextPreview {
strongSelf.extractedBackgroundImageNode.frame = extractedRect
} else {
strongSelf.extractedBackgroundImageNode.frame = nonExtractedRect
}
strongSelf.contextSourceNode.contentRect = extractedRect
if let layer = strongSelf.iconBackgroundNode.layer as? CAShapeLayer {
layer.fillColor = iconColor.cgColor
}
if let _ = updatedTheme {
strongSelf.topStripeNode.backgroundColor = itemSeparatorColor
strongSelf.bottomStripeNode.backgroundColor = itemSeparatorColor
strongSelf.backgroundNode.backgroundColor = itemBackgroundColor
strongSelf.highlightedBackgroundNode.backgroundColor = item.presentationData.theme.list.itemHighlightedBackgroundColor
strongSelf.iconNode.image = generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/Link"), color: item.presentationData.theme.list.itemCheckColors.foregroundColor)
}
let transition = ContainedViewLayoutTransition.immediate
let _ = titleApply()
let _ = subtitleApply()
switch item.style {
case .plain:
if strongSelf.backgroundNode.supernode != nil {
strongSelf.backgroundNode.removeFromSupernode()
}
if strongSelf.topStripeNode.supernode != nil {
strongSelf.topStripeNode.removeFromSupernode()
}
if strongSelf.bottomStripeNode.supernode == nil {
strongSelf.insertSubnode(strongSelf.bottomStripeNode, at: 0)
}
if strongSelf.maskNode.supernode != nil {
strongSelf.maskNode.removeFromSupernode()
}
let stripeInset: CGFloat
if case .none = neighbors.bottom {
stripeInset = 0.0
} else {
stripeInset = leftInset
}
strongSelf.bottomStripeNode.frame = CGRect(origin: CGPoint(x: stripeInset, y: contentSize.height - separatorHeight), size: CGSize(width: params.width - stripeInset, height: separatorHeight))
strongSelf.bottomStripeNode.isHidden = last
case .blocks:
if strongSelf.backgroundNode.supernode == nil {
strongSelf.insertSubnode(strongSelf.backgroundNode, at: 0)
}
if strongSelf.topStripeNode.supernode == nil {
strongSelf.insertSubnode(strongSelf.topStripeNode, at: 1)
}
if strongSelf.bottomStripeNode.supernode == nil {
strongSelf.insertSubnode(strongSelf.bottomStripeNode, at: 2)
}
if strongSelf.maskNode.supernode == nil {
strongSelf.insertSubnode(strongSelf.maskNode, at: 3)
}
let hasCorners = itemListHasRoundedBlockLayout(params)
var hasTopCorners = false
var hasBottomCorners = false
switch neighbors.top {
case .sameSection(false):
strongSelf.topStripeNode.isHidden = true
default:
hasTopCorners = true
strongSelf.topStripeNode.isHidden = hasCorners
}
let bottomStripeInset: CGFloat
switch neighbors.bottom {
case .sameSection(false):
bottomStripeInset = leftInset
default:
bottomStripeInset = 0.0
hasBottomCorners = true
strongSelf.bottomStripeNode.isHidden = hasCorners
}
strongSelf.maskNode.image = hasCorners ? PresentationResourcesItemList.cornersImage(item.presentationData.theme, top: hasTopCorners, bottom: hasBottomCorners) : nil
strongSelf.backgroundNode.frame = CGRect(origin: CGPoint(x: 0.0, y: -min(insets.top, separatorHeight)), size: CGSize(width: params.width, height: contentSize.height + min(insets.top, separatorHeight) + min(insets.bottom, separatorHeight)))
strongSelf.maskNode.frame = strongSelf.backgroundNode.frame.insetBy(dx: params.leftInset, dy: 0.0)
strongSelf.topStripeNode.frame = CGRect(origin: CGPoint(x: 0.0, y: -min(insets.top, separatorHeight)), size: CGSize(width: params.width, height: separatorHeight))
strongSelf.bottomStripeNode.frame = CGRect(origin: CGPoint(x: bottomStripeInset, y: contentSize.height - separatorHeight), size: CGSize(width: params.width - bottomStripeInset, height: separatorHeight))
}
let iconSize: CGSize = CGSize(width: 40.0, height: 40.0)
let iconFrame = CGRect(origin: CGPoint(x: params.leftInset + 12.0, y: floorToScreenPixels((layout.contentSize.height - iconSize.height) / 2.0)), size: iconSize)
strongSelf.iconBackgroundNode.bounds = CGRect(origin: CGPoint(), size: iconSize)
strongSelf.iconBackgroundNode.position = iconFrame.center
strongSelf.iconNode.frame = iconFrame
transition.updateTransformScale(node: strongSelf.iconBackgroundNode, scale: timerValue != nil ? 0.875 : 1.0)
if let timerValue = timerValue {
let timerNode: TimerNode
if let current = strongSelf.timerNode {
timerNode = current
} else {
timerNode = TimerNode()
timerNode.isUserInteractionEnabled = false
strongSelf.timerNode = timerNode
strongSelf.offsetContainerNode.addSubnode(timerNode)
}
timerNode.update(color: iconColor, value: timerValue)
} else if let timerNode = strongSelf.timerNode {
strongSelf.timerNode = nil
timerNode.removeFromSupernode()
}
strongSelf.timerNode?.frame = iconFrame.insetBy(dx: -5.0, dy: -5.0)
transition.updateFrame(node: strongSelf.titleNode, frame: CGRect(origin: CGPoint(x: leftInset, y: verticalInset), size: titleLayout.size))
transition.updateFrame(node: strongSelf.subtitleNode, frame: CGRect(origin: CGPoint(x: leftInset, y: verticalInset + titleLayout.size.height + titleSpacing), size: subtitleLayout.size))
strongSelf.highlightedBackgroundNode.frame = CGRect(origin: CGPoint(x: 0.0, y: -UIScreenPixel), size: CGSize(width: params.width, height: contentSize.height + UIScreenPixel + UIScreenPixel))
if item.invite == nil {
let shimmerNode: ShimmerEffectNode
if let current = strongSelf.placeholderNode {
shimmerNode = current
} else {
shimmerNode = ShimmerEffectNode()
strongSelf.placeholderNode = shimmerNode
strongSelf.addSubnode(shimmerNode)
}
shimmerNode.frame = CGRect(origin: CGPoint(), size: layout.contentSize)
if let (rect, size) = strongSelf.absoluteLocation {
shimmerNode.updateAbsoluteRect(rect, within: size)
}
var shapes: [ShimmerEffectNode.Shape] = []
let titleLineWidth: CGFloat = 180.0
let subtitleLineWidth: CGFloat = 60.0
let lineDiameter: CGFloat = 10.0
let iconFrame = strongSelf.iconBackgroundNode.frame
shapes.append(.circle(iconFrame))
let titleFrame = strongSelf.titleNode.frame
shapes.append(.roundedRectLine(startPoint: CGPoint(x: titleFrame.minX, y: titleFrame.minY + floor((titleFrame.height - lineDiameter) / 2.0)), width: titleLineWidth, diameter: lineDiameter))
let subtitleFrame = strongSelf.subtitleNode.frame
shapes.append(.roundedRectLine(startPoint: CGPoint(x: subtitleFrame.minX, y: subtitleFrame.minY + floor((subtitleFrame.height - lineDiameter) / 2.0)), width: subtitleLineWidth, diameter: lineDiameter))
shimmerNode.update(backgroundColor: item.presentationData.theme.list.itemBlocksBackgroundColor, foregroundColor: item.presentationData.theme.list.mediaPlaceholderColor, shimmeringColor: item.presentationData.theme.list.itemBlocksBackgroundColor.withAlphaComponent(0.4), shapes: shapes, size: layout.contentSize)
} else if let shimmerNode = strongSelf.placeholderNode {
strongSelf.placeholderNode = nil
shimmerNode.removeFromSupernode()
}
}
})
}
}
override public func setHighlighted(_ highlighted: Bool, at point: CGPoint, animated: Bool) {
super.setHighlighted(highlighted, at: point, animated: animated)
if highlighted {
self.highlightedBackgroundNode.alpha = 1.0
if self.highlightedBackgroundNode.supernode == nil {
var anchorNode: ASDisplayNode?
if self.bottomStripeNode.supernode != nil {
anchorNode = self.bottomStripeNode
} else if self.topStripeNode.supernode != nil {
anchorNode = self.topStripeNode
} else if self.backgroundNode.supernode != nil {
anchorNode = self.backgroundNode
}
if let anchorNode = anchorNode {
self.insertSubnode(self.highlightedBackgroundNode, aboveSubnode: anchorNode)
} else {
self.addSubnode(self.highlightedBackgroundNode)
}
}
} else {
if self.highlightedBackgroundNode.supernode != nil {
if animated {
self.highlightedBackgroundNode.layer.animateAlpha(from: self.highlightedBackgroundNode.alpha, to: 0.0, duration: 0.4, completion: { [weak self] completed in
if let strongSelf = self {
if completed {
strongSelf.highlightedBackgroundNode.removeFromSupernode()
}
}
})
self.highlightedBackgroundNode.alpha = 0.0
} else {
self.highlightedBackgroundNode.removeFromSupernode()
}
}
}
}
override public func animateInsertion(_ currentTimestamp: Double, duration: Double, short: Bool) {
self.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.4)
}
override public func animateRemoved(_ currentTimestamp: Double, duration: Double) {
self.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.15, removeOnCompletion: false)
}
override public func updateAbsoluteRect(_ rect: CGRect, within containerSize: CGSize) {
var rect = rect
rect.origin.y += self.insets.top
self.absoluteLocation = (rect, containerSize)
if let shimmerNode = self.placeholderNode {
shimmerNode.updateAbsoluteRect(rect, within: containerSize)
}
}
}
private struct ContentParticle {
var position: CGPoint
var direction: CGPoint
var velocity: CGFloat
var alpha: CGFloat
var lifetime: Double
var beginTime: Double
init(position: CGPoint, direction: CGPoint, velocity: CGFloat, alpha: CGFloat, lifetime: Double, beginTime: Double) {
self.position = position
self.direction = direction
self.velocity = velocity
self.alpha = alpha
self.lifetime = lifetime
self.beginTime = beginTime
}
}
private final class TimerNode: ASDisplayNode {
enum Value: Equatable {
case timestamp(creation: Int32, deadline: Int32)
case fraction(CGFloat)
}
private struct Params: Equatable {
var color: UIColor
var value: Value
}
private let hierarchyTrackingNode: HierarchyTrackingNode
private var inHierarchyValue: Bool = false
private var animator: ConstantDisplayLinkAnimator?
private let contentNode: ASDisplayNode
private var particles: [ContentParticle] = []
private var currentParams: Params?
var reachedTimeout: (() -> Void)?
override init() {
var updateInHierarchy: ((Bool) -> Void)?
self.hierarchyTrackingNode = HierarchyTrackingNode({ value in
updateInHierarchy?(value)
})
self.contentNode = ASDisplayNode()
super.init()
self.addSubnode(self.contentNode)
updateInHierarchy = { [weak self] value in
guard let strongSelf = self else {
return
}
strongSelf.inHierarchyValue = value
strongSelf.animator?.isPaused = value
}
}
deinit {
self.animator?.invalidate()
}
func update(color: UIColor, value: Value) {
let params = Params(
color: color,
value: value
)
self.currentParams = params
self.updateValues()
}
private func updateValues() {
guard let params = self.currentParams else {
return
}
let color = params.color
let currentTimestamp = Int32(CFAbsoluteTimeGetCurrent() + NSTimeIntervalSince1970)
var fraction: CGFloat
switch params.value {
case let .fraction(value):
fraction = value
case let .timestamp(creation, deadline):
fraction = CGFloat(deadline - currentTimestamp) / CGFloat(deadline - creation)
}
fraction = max(0.0001, 1.0 - max(0.0, min(1.0, fraction)))
let image: UIImage?
let diameter: CGFloat = 42.0
let inset: CGFloat = 8.0
let lineWidth: CGFloat = 2.0
let timestamp = CACurrentMediaTime()
let center = CGPoint(x: (diameter + inset) / 2.0, y: (diameter + inset) / 2.0)
let radius: CGFloat = (diameter - lineWidth / 2.0) / 2.0
let startAngle: CGFloat = -CGFloat.pi / 2.0
let endAngle: CGFloat = -CGFloat.pi / 2.0 + 2.0 * CGFloat.pi * fraction
let sparks = fraction > 0.05 && fraction != 1.0
if sparks {
let v = CGPoint(x: sin(endAngle), y: -cos(endAngle))
let c = CGPoint(x: -v.y * radius + center.x, y: v.x * radius + center.y)
let dt: CGFloat = 1.0 / 60.0
var removeIndices: [Int] = []
for i in 0 ..< self.particles.count {
let currentTime = timestamp - self.particles[i].beginTime
if currentTime > self.particles[i].lifetime {
removeIndices.append(i)
} else {
let input: CGFloat = CGFloat(currentTime / self.particles[i].lifetime)
let decelerated: CGFloat = (1.0 - (1.0 - input) * (1.0 - input))
self.particles[i].alpha = 1.0 - decelerated
var p = self.particles[i].position
let d = self.particles[i].direction
let v = self.particles[i].velocity
p = CGPoint(x: p.x + d.x * v * dt, y: p.y + d.y * v * dt)
self.particles[i].position = p
}
}
for i in removeIndices.reversed() {
self.particles.remove(at: i)
}
let newParticleCount = 1
for _ in 0 ..< newParticleCount {
let degrees: CGFloat = CGFloat(arc4random_uniform(140)) - 40.0
let angle: CGFloat = degrees * CGFloat.pi / 180.0
let direction = CGPoint(x: v.x * cos(angle) - v.y * sin(angle), y: v.x * sin(angle) + v.y * cos(angle))
let velocity = (20.0 + (CGFloat(arc4random()) / CGFloat(UINT32_MAX)) * 4.0) * 0.3
let lifetime = Double(0.4 + CGFloat(arc4random_uniform(100)) * 0.01)
let particle = ContentParticle(position: c, direction: direction, velocity: velocity, alpha: 1.0, lifetime: lifetime, beginTime: timestamp)
self.particles.append(particle)
}
}
image = generateImage(CGSize(width: diameter + inset, height: diameter + inset), rotatedContext: { size, context in
context.clear(CGRect(origin: CGPoint(), size: size))
context.setStrokeColor(color.cgColor)
context.setFillColor(color.cgColor)
context.setLineWidth(lineWidth)
context.setLineCap(.round)
let path = CGMutablePath()
path.addArc(center: center, radius: radius, startAngle: startAngle, endAngle: endAngle, clockwise: true)
context.addPath(path)
context.strokePath()
if sparks {
for particle in self.particles {
let size: CGFloat = 2.0
context.setAlpha(particle.alpha)
context.fillEllipse(in: CGRect(origin: CGPoint(x: particle.position.x - size / 2.0, y: particle.position.y - size / 2.0), size: CGSize(width: size, height: size)))
}
}
})
self.contentNode.contents = image?.cgImage
if let image = image {
self.contentNode.frame = CGRect(origin: CGPoint(), size: image.size)
}
if fraction <= .ulpOfOne {
self.animator?.invalidate()
self.animator = nil
} else {
if self.animator == nil {
let animator = ConstantDisplayLinkAnimator(update: { [weak self] in
self?.updateValues()
})
self.animator = animator
animator.isPaused = self.inHierarchyValue
}
}
}
}