Swiftgram/submodules/TelegramUI/Sources/ChatTopicListTitleAccessoryPanelNode.swift
2025-05-07 14:47:00 +01:00

866 lines
38 KiB
Swift

import Foundation
import UIKit
import Display
import AsyncDisplayKit
import TelegramPresentationData
import ChatPresentationInterfaceState
import AccountContext
import ComponentFlow
import MultilineTextComponent
import PlainButtonComponent
import TelegramCore
import Postbox
import EmojiStatusComponent
import SwiftSignalKit
import BundleIconComponent
import AvatarNode
final class ChatTopicListTitleAccessoryPanelNode: ChatTitleAccessoryPanelNode, ChatControllerCustomNavigationPanelNode, ASScrollViewDelegate {
private struct Params: Equatable {
var width: CGFloat
var leftInset: CGFloat
var rightInset: CGFloat
var interfaceState: ChatPresentationInterfaceState
init(width: CGFloat, leftInset: CGFloat, rightInset: CGFloat, interfaceState: ChatPresentationInterfaceState) {
self.width = width
self.leftInset = leftInset
self.rightInset = rightInset
self.interfaceState = interfaceState
}
static func ==(lhs: Params, rhs: Params) -> Bool {
if lhs.width != rhs.width {
return false
}
if lhs.leftInset != rhs.leftInset {
return false
}
if lhs.rightInset != rhs.rightInset {
return false
}
if lhs.interfaceState != rhs.interfaceState {
return false
}
return true
}
}
private final class Item: Equatable {
typealias Id = EngineChatList.Item.Id
let item: EngineChatList.Item
var id: Id {
return self.item.id
}
init(item: EngineChatList.Item) {
self.item = item
}
public static func ==(lhs: Item, rhs: Item) -> Bool {
if lhs === rhs {
return true
}
if lhs.item != rhs.item {
return false
}
return true
}
}
private final class ItemView: UIView {
private let context: AccountContext
private let action: () -> Void
private let extractedContainerNode: ContextExtractedContentContainingNode
private let containerNode: ContextControllerSourceNode
private let containerButton: HighlightTrackingButton
private let icon = ComponentView<Empty>()
private var avatarNode: AvatarNode?
private let title = ComponentView<Empty>()
init(context: AccountContext, action: @escaping (() -> Void), contextGesture: @escaping (ContextGesture, ContextExtractedContentContainingNode) -> Void) {
self.context = context
self.action = action
self.extractedContainerNode = ContextExtractedContentContainingNode()
self.containerNode = ContextControllerSourceNode()
self.containerButton = HighlightTrackingButton()
super.init(frame: CGRect())
self.extractedContainerNode.contentNode.view.addSubview(self.containerButton)
self.containerNode.addSubnode(self.extractedContainerNode)
self.containerNode.targetNodeForActivationProgress = self.extractedContainerNode.contentNode
self.addSubview(self.containerNode.view)
self.containerButton.addTarget(self, action: #selector(self.pressed), for: .touchUpInside)
self.containerButton.highligthedChanged = { [weak self] highlighted in
if let self, self.bounds.width > 0.0 {
let topScale: CGFloat = (self.bounds.width - 1.0) / self.bounds.width
let maxScale: CGFloat = (self.bounds.width + 1.0) / self.bounds.width
if highlighted {
self.layer.removeAnimation(forKey: "opacity")
self.layer.removeAnimation(forKey: "sublayerTransform")
let transition: ContainedViewLayoutTransition = .animated(duration: 0.2, curve: .easeInOut)
transition.updateTransformScale(layer: self.layer, scale: topScale)
} else {
let transition: ContainedViewLayoutTransition = .immediate
transition.updateTransformScale(layer: self.layer, scale: 1.0)
self.layer.animateScale(from: topScale, to: maxScale, duration: 0.13, timingFunction: CAMediaTimingFunctionName.easeOut.rawValue, removeOnCompletion: false, completion: { [weak self] _ in
guard let self else {
return
}
self.layer.animateScale(from: maxScale, to: 1.0, duration: 0.1, timingFunction: CAMediaTimingFunctionName.easeIn.rawValue)
})
}
}
}
self.containerNode.isGestureEnabled = false
}
required init?(coder: NSCoder) {
preconditionFailure()
}
@objc private func pressed() {
self.action()
}
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
var mappedPoint = point
if self.bounds.insetBy(dx: -8.0, dy: -4.0).contains(point) {
mappedPoint = self.bounds.center
}
return super.hitTest(mappedPoint, with: event)
}
func update(context: AccountContext, item: Item, isSelected: Bool, theme: PresentationTheme, height: CGFloat, transition: ComponentTransition) -> CGSize {
let spacing: CGFloat = 3.0
let avatarIconContent: EmojiStatusComponent.Content
if case let .forum(topicId) = item.item.id, topicId != 1, let threadData = item.item.threadData {
if let fileId = threadData.info.icon, fileId != 0 {
avatarIconContent = .animation(content: .customEmoji(fileId: fileId), size: CGSize(width: 18.0, height: 18.0), placeholderColor: theme.list.mediaPlaceholderColor, themeColor: theme.list.itemAccentColor, loopMode: .count(0))
} else {
avatarIconContent = .topic(title: String(threadData.info.title.prefix(1)), color: threadData.info.iconColor, size: CGSize(width: 18.0, height: 18.0))
}
} else {
avatarIconContent = .image(image: PresentationResourcesChatList.generalTopicIcon(theme))
}
let avatarIconComponent = EmojiStatusComponent(
context: context,
animationCache: context.animationCache,
animationRenderer: context.animationRenderer,
content: avatarIconContent,
isVisibleForAnimations: false,
action: nil
)
let iconSize = self.icon.update(
transition: .immediate,
component: AnyComponent(avatarIconComponent),
environment: {},
containerSize: CGSize(width: 18.0, height: 18.0)
)
let titleText: String = item.item.renderedPeer.chatMainPeer?.compactDisplayTitle ?? " "
let titleSize = self.title.update(
transition: .immediate,
component: AnyComponent(MultilineTextComponent(
text: .plain(NSAttributedString(string: titleText, font: Font.medium(14.0), textColor: isSelected ? theme.rootController.navigationBar.accentTextColor : theme.rootController.navigationBar.secondaryTextColor))
)),
environment: {},
containerSize: CGSize(width: 100.0, height: 100.0)
)
let contentSize: CGFloat = iconSize.width + spacing + titleSize.width
let size = CGSize(width: contentSize, height: height)
let iconFrame = CGRect(origin: CGPoint(x: 0.0, y: 5.0 + floor((size.height - iconSize.height) * 0.5)), size: iconSize)
let titleFrame = CGRect(origin: CGPoint(x: iconFrame.maxX + spacing, y: 5.0 + floor((size.height - titleSize.height) * 0.5)), size: titleSize)
if let iconView = self.icon.view {
if iconView.superview == nil {
iconView.isUserInteractionEnabled = false
self.containerButton.addSubview(iconView)
}
iconView.frame = iconFrame
if "".isEmpty {
iconView.isHidden = true
let avatarNode: AvatarNode
if let current = self.avatarNode {
avatarNode = current
} else {
avatarNode = AvatarNode(font: avatarPlaceholderFont(size: 7.0))
self.avatarNode = avatarNode
self.containerButton.addSubview(avatarNode.view)
}
avatarNode.frame = iconFrame
avatarNode.updateSize(size: iconFrame.size)
if let peer = item.item.renderedPeer.chatMainPeer {
if peer.smallProfileImage != nil {
avatarNode.setPeerV2(context: context, theme: theme, peer: peer, overrideImage: nil, emptyColor: .gray, clipStyle: .round, synchronousLoad: false, displayDimensions: iconFrame.size)
} else {
avatarNode.setPeer(context: context, theme: theme, peer: peer, overrideImage: nil, emptyColor: .gray, clipStyle: .round, synchronousLoad: false, displayDimensions: iconFrame.size)
}
}
} else if let avatarNode = self.avatarNode {
self.avatarNode = nil
avatarNode.view.removeFromSuperview()
iconView.isHidden = false
}
}
if let titleView = self.title.view {
if titleView.superview == nil {
titleView.isUserInteractionEnabled = false
self.containerButton.addSubview(titleView)
}
titleView.frame = titleFrame
}
transition.setFrame(view: self.containerButton, frame: CGRect(origin: CGPoint(), size: size))
self.extractedContainerNode.frame = CGRect(origin: CGPoint(), size: size)
self.extractedContainerNode.contentNode.frame = CGRect(origin: CGPoint(), size: size)
self.extractedContainerNode.contentRect = CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: CGSize(width: size.width, height: size.height))
self.containerNode.frame = CGRect(origin: CGPoint(), size: size)
return size
}
}
private final class TabItemView: UIView {
private let context: AccountContext
private let action: () -> Void
private let extractedContainerNode: ContextExtractedContentContainingNode
private let containerNode: ContextControllerSourceNode
private let containerButton: HighlightTrackingButton
private let icon = ComponentView<Empty>()
init(context: AccountContext, action: @escaping (() -> Void)) {
self.context = context
self.action = action
self.extractedContainerNode = ContextExtractedContentContainingNode()
self.containerNode = ContextControllerSourceNode()
self.containerButton = HighlightTrackingButton()
super.init(frame: CGRect())
self.extractedContainerNode.contentNode.view.addSubview(self.containerButton)
self.containerNode.addSubnode(self.extractedContainerNode)
self.containerNode.targetNodeForActivationProgress = self.extractedContainerNode.contentNode
self.addSubview(self.containerNode.view)
self.containerButton.addTarget(self, action: #selector(self.pressed), for: .touchUpInside)
self.containerButton.highligthedChanged = { [weak self] highlighted in
if let self, self.bounds.width > 0.0 {
let topScale: CGFloat = (self.bounds.width - 1.0) / self.bounds.width
let maxScale: CGFloat = (self.bounds.width + 1.0) / self.bounds.width
if highlighted {
self.layer.removeAnimation(forKey: "opacity")
self.layer.removeAnimation(forKey: "sublayerTransform")
let transition: ContainedViewLayoutTransition = .animated(duration: 0.2, curve: .easeInOut)
transition.updateTransformScale(layer: self.layer, scale: topScale)
} else {
let transition: ContainedViewLayoutTransition = .immediate
transition.updateTransformScale(layer: self.layer, scale: 1.0)
self.layer.animateScale(from: topScale, to: maxScale, duration: 0.13, timingFunction: CAMediaTimingFunctionName.easeOut.rawValue, removeOnCompletion: false, completion: { [weak self] _ in
guard let self else {
return
}
self.layer.animateScale(from: maxScale, to: 1.0, duration: 0.1, timingFunction: CAMediaTimingFunctionName.easeIn.rawValue)
})
}
}
}
self.containerNode.isGestureEnabled = false
}
required init?(coder: NSCoder) {
preconditionFailure()
}
@objc private func pressed() {
self.action()
}
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
var mappedPoint = point
if self.bounds.insetBy(dx: -8.0, dy: -4.0).contains(point) {
mappedPoint = self.bounds.center
}
return super.hitTest(mappedPoint, with: event)
}
func update(context: AccountContext, theme: PresentationTheme, height: CGFloat, transition: ComponentTransition) -> CGSize {
let iconSize = self.icon.update(
transition: .immediate,
component: AnyComponent(BundleIconComponent(
name: "Call/PanelIcon",
tintColor: theme.rootController.navigationBar.secondaryTextColor,
maxSize: nil,
scaleFactor: 1.0
)),
environment: {},
containerSize: CGSize(width: 100.0, height: 100.0)
)
let contentSize: CGFloat = iconSize.width
let size = CGSize(width: contentSize, height: height)
let iconFrame = CGRect(origin: CGPoint(x: 0.0, y: 5.0 + floor((size.height - iconSize.height) * 0.5)), size: iconSize)
if let iconView = self.icon.view {
if iconView.superview == nil {
iconView.isUserInteractionEnabled = false
self.containerButton.addSubview(iconView)
}
iconView.frame = iconFrame
}
transition.setFrame(view: self.containerButton, frame: CGRect(origin: CGPoint(), size: size))
self.extractedContainerNode.frame = CGRect(origin: CGPoint(), size: size)
self.extractedContainerNode.contentNode.frame = CGRect(origin: CGPoint(), size: size)
self.extractedContainerNode.contentRect = CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: CGSize(width: size.width, height: size.height))
self.containerNode.frame = CGRect(origin: CGPoint(), size: size)
return size
}
}
private final class AllItemView: UIView {
private let context: AccountContext
private let action: () -> Void
private let extractedContainerNode: ContextExtractedContentContainingNode
private let containerNode: ContextControllerSourceNode
private let containerButton: HighlightTrackingButton
private let title = ComponentView<Empty>()
init(context: AccountContext, action: @escaping (() -> Void)) {
self.context = context
self.action = action
self.extractedContainerNode = ContextExtractedContentContainingNode()
self.containerNode = ContextControllerSourceNode()
self.containerButton = HighlightTrackingButton()
super.init(frame: CGRect())
self.extractedContainerNode.contentNode.view.addSubview(self.containerButton)
self.containerNode.addSubnode(self.extractedContainerNode)
self.containerNode.targetNodeForActivationProgress = self.extractedContainerNode.contentNode
self.addSubview(self.containerNode.view)
self.containerButton.addTarget(self, action: #selector(self.pressed), for: .touchUpInside)
self.containerButton.highligthedChanged = { [weak self] highlighted in
if let self, self.bounds.width > 0.0 {
let topScale: CGFloat = (self.bounds.width - 1.0) / self.bounds.width
let maxScale: CGFloat = (self.bounds.width + 1.0) / self.bounds.width
if highlighted {
self.layer.removeAnimation(forKey: "opacity")
self.layer.removeAnimation(forKey: "sublayerTransform")
let transition: ContainedViewLayoutTransition = .animated(duration: 0.2, curve: .easeInOut)
transition.updateTransformScale(layer: self.layer, scale: topScale)
} else {
let transition: ContainedViewLayoutTransition = .immediate
transition.updateTransformScale(layer: self.layer, scale: 1.0)
self.layer.animateScale(from: topScale, to: maxScale, duration: 0.13, timingFunction: CAMediaTimingFunctionName.easeOut.rawValue, removeOnCompletion: false, completion: { [weak self] _ in
guard let self else {
return
}
self.layer.animateScale(from: maxScale, to: 1.0, duration: 0.1, timingFunction: CAMediaTimingFunctionName.easeIn.rawValue)
})
}
}
}
self.containerNode.isGestureEnabled = false
}
required init?(coder: NSCoder) {
preconditionFailure()
}
@objc private func pressed() {
self.action()
}
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
var mappedPoint = point
if self.bounds.insetBy(dx: -8.0, dy: -4.0).contains(point) {
mappedPoint = self.bounds.center
}
return super.hitTest(mappedPoint, with: event)
}
func update(context: AccountContext, isSelected: Bool, theme: PresentationTheme, height: CGFloat, transition: ComponentTransition) -> CGSize {
//TODO:localize
let titleText: String = "All"
let titleSize = self.title.update(
transition: .immediate,
component: AnyComponent(MultilineTextComponent(
text: .plain(NSAttributedString(string: titleText, font: Font.medium(14.0), textColor: isSelected ? theme.rootController.navigationBar.accentTextColor : theme.rootController.navigationBar.secondaryTextColor))
)),
environment: {},
containerSize: CGSize(width: 100.0, height: 100.0)
)
let contentSize: CGFloat = titleSize.width
let size = CGSize(width: contentSize, height: height)
let titleFrame = CGRect(origin: CGPoint(x: 0.0, y: 5.0 + floor((size.height - titleSize.height) * 0.5)), size: titleSize)
if let titleView = self.title.view {
if titleView.superview == nil {
titleView.isUserInteractionEnabled = false
self.containerButton.addSubview(titleView)
}
titleView.frame = titleFrame
}
transition.setFrame(view: self.containerButton, frame: CGRect(origin: CGPoint(), size: size))
self.extractedContainerNode.frame = CGRect(origin: CGPoint(), size: size)
self.extractedContainerNode.contentNode.frame = CGRect(origin: CGPoint(), size: size)
self.extractedContainerNode.contentRect = CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: CGSize(width: size.width, height: size.height))
self.containerNode.frame = CGRect(origin: CGPoint(), size: size)
return size
}
}
private final class ScrollView: UIScrollView {
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
return super.hitTest(point, with: event)
}
override func touchesShouldCancel(in view: UIView) -> Bool {
return true
}
}
private enum ScrollId: Equatable {
case all
case topic(Int64)
}
private let context: AccountContext
private let scrollView: ScrollView
private var params: Params?
private var items: [Item] = []
private var itemViews: [Item.Id: ItemView] = [:]
private var allItemView: AllItemView?
private var tabItemView: TabItemView?
private let selectedLineView: UIImageView
private var itemsDisposable: Disposable?
private var appliedScrollToId: ScrollId?
init(context: AccountContext, peerId: EnginePeer.Id) {
self.context = context
self.selectedLineView = UIImageView()
self.scrollView = ScrollView(frame: CGRect())
super.init()
self.scrollView.delaysContentTouches = false
self.scrollView.canCancelContentTouches = true
self.scrollView.clipsToBounds = false
self.scrollView.contentInsetAdjustmentBehavior = .never
if #available(iOS 13.0, *) {
self.scrollView.automaticallyAdjustsScrollIndicatorInsets = false
}
self.scrollView.showsVerticalScrollIndicator = false
self.scrollView.showsHorizontalScrollIndicator = false
self.scrollView.alwaysBounceHorizontal = false
self.scrollView.alwaysBounceVertical = false
self.scrollView.scrollsToTop = false
self.scrollView.delegate = self.wrappedScrollViewDelegate
self.view.addSubview(self.scrollView)
self.scrollView.addSubview(self.selectedLineView)
self.scrollView.disablesInteractiveTransitionGestureRecognizer = true
let viewKey: PostboxViewKey = .savedMessagesIndex(peerId: peerId)
let interfaceStateKey: PostboxViewKey = .chatInterfaceState(peerId: peerId)
let accountPeerId = context.account.peerId
let threadListSignal: Signal<EngineChatList, NoError> = context.account.postbox.combinedView(keys: [viewKey, interfaceStateKey])
|> map { views -> EngineChatList in
guard let view = views.views[viewKey] as? MessageHistorySavedMessagesIndexView else {
preconditionFailure()
}
var draft: EngineChatList.Draft?
if let interfaceStateView = views.views[interfaceStateKey] as? ChatInterfaceStateView {
if let embeddedState = interfaceStateView.value, let _ = embeddedState.overrideChatTimestamp {
if let opaqueState = _internal_decodeStoredChatInterfaceState(state: embeddedState) {
if let text = opaqueState.synchronizeableInputState?.text {
draft = EngineChatList.Draft(text: text, entities: opaqueState.synchronizeableInputState?.entities ?? [])
}
}
}
}
var items: [EngineChatList.Item] = []
for item in view.items {
guard let sourcePeer = item.peer else {
continue
}
let sourceId = PeerId(item.id)
var messages: [EngineMessage] = []
if let topMessage = item.topMessage {
messages.append(EngineMessage(topMessage))
}
let mappedMessageIndex = MessageIndex(id: MessageId(peerId: sourceId, namespace: item.index.id.namespace, id: item.index.id.id), timestamp: item.index.timestamp)
items.append(EngineChatList.Item(
id: .chatList(sourceId),
index: .chatList(ChatListIndex(pinningIndex: item.pinnedIndex.flatMap(UInt16.init), messageIndex: mappedMessageIndex)),
messages: messages,
readCounters: nil,
isMuted: false,
draft: sourceId == accountPeerId ? draft : nil,
threadData: nil,
renderedPeer: EngineRenderedPeer(peer: EnginePeer(sourcePeer)),
presence: nil,
hasUnseenMentions: false,
hasUnseenReactions: false,
forumTopicData: nil,
topForumTopicItems: [],
hasFailed: false,
isContact: false,
autoremoveTimeout: nil,
storyStats: nil,
displayAsTopicList: false,
isPremiumRequiredToMessage: false,
mediaDraftContentType: nil
))
}
let list = EngineChatList(
items: items.reversed(),
groupItems: [],
additionalItems: [],
hasEarlier: false,
hasLater: false,
isLoading: view.isLoading
)
return list
}
self.itemsDisposable = (threadListSignal
|> deliverOnMainQueue).startStrict(next: { [weak self] chatList in
guard let self else {
return
}
self.items.removeAll()
for item in chatList.items.reversed() {
self.items.append(Item(item: item))
}
self.update(transition: .immediate)
})
}
deinit {
self.itemsDisposable?.dispose()
}
private func update(transition: ContainedViewLayoutTransition) {
if let params = self.params {
self.update(params: params, transition: transition)
}
}
override func updateLayout(width: CGFloat, leftInset: CGFloat, rightInset: CGFloat, transition: ContainedViewLayoutTransition, interfaceState: ChatPresentationInterfaceState) -> LayoutResult {
let params = Params(width: width, leftInset: leftInset, rightInset: rightInset, interfaceState: interfaceState)
if self.params != params {
if self.params?.interfaceState.theme !== params.interfaceState.theme {
self.selectedLineView.image = generateImage(CGSize(width: 7.0, height: 4.0), rotatedContext: { size, context in
context.clear(CGRect(origin: CGPoint(), size: size))
context.setFillColor(params.interfaceState.theme.rootController.navigationBar.accentTextColor.cgColor)
context.fillEllipse(in: CGRect(origin: CGPoint(), size: CGSize(width: size.width, height: size.width)))
})?.stretchableImage(withLeftCapWidth: 4, topCapHeight: 1)
}
self.params = params
self.update(params: params, transition: transition)
}
let panelHeight: CGFloat = 44.0
return LayoutResult(backgroundHeight: panelHeight, insetHeight: panelHeight, hitTestSlop: 0.0)
}
func updateLayout(width: CGFloat, leftInset: CGFloat, rightInset: CGFloat, transition: ContainedViewLayoutTransition, chatController: ChatController) -> LayoutResult {
return self.updateLayout(width: width, leftInset: leftInset, rightInset: rightInset, transition: transition, interfaceState: (chatController as! ChatControllerImpl).presentationInterfaceState)
}
private func update(params: Params, transition: ContainedViewLayoutTransition) {
let hadItemViews = !self.itemViews.isEmpty
var transition = transition
if !hadItemViews {
transition = .immediate
}
let panelHeight: CGFloat = 44.0
let containerInsets = UIEdgeInsets(top: 0.0, left: params.leftInset + 16.0, bottom: 0.0, right: params.rightInset + 16.0)
let itemSpacing: CGFloat = 24.0
var contentSize = CGSize(width: 0.0, height: panelHeight)
contentSize.width += containerInsets.left
var validIds: [Item.Id] = []
var isFirst = true
var selectedItemFrame: CGRect?
do {
if isFirst {
isFirst = false
} else {
contentSize.width += itemSpacing
}
var itemTransition = transition
var animateIn = false
let itemView: TabItemView
if let current = self.tabItemView {
itemView = current
} else {
itemTransition = .immediate
animateIn = true
itemView = TabItemView(context: self.context, action: { [weak self] in
guard let self else {
return
}
self.interfaceInteraction?.toggleChatSidebarMode()
})
self.tabItemView = itemView
self.scrollView.addSubview(itemView)
}
let itemSize = itemView.update(context: self.context, theme: params.interfaceState.theme, height: panelHeight, transition: .immediate)
let itemFrame = CGRect(origin: CGPoint(x: contentSize.width, y: -5.0), size: itemSize)
itemTransition.updatePosition(layer: itemView.layer, position: itemFrame.center)
itemTransition.updateBounds(layer: itemView.layer, bounds: CGRect(origin: CGPoint(), size: itemFrame.size))
if animateIn && transition.isAnimated {
itemView.layer.animateAlpha(from: 0.0, to: itemView.alpha, duration: 0.15)
transition.animateTransformScale(view: itemView, from: 0.001)
}
contentSize.width += itemSize.width
}
do {
if isFirst {
isFirst = false
} else {
contentSize.width += itemSpacing
}
var itemTransition = transition
var animateIn = false
let itemView: AllItemView
if let current = self.allItemView {
itemView = current
} else {
itemTransition = .immediate
animateIn = true
itemView = AllItemView(context: self.context, action: { [weak self] in
guard let self else {
return
}
self.interfaceInteraction?.updateChatLocationThread(nil)
})
self.allItemView = itemView
self.scrollView.addSubview(itemView)
}
var isSelected = false
if params.interfaceState.chatLocation.threadId == nil {
isSelected = true
}
let itemSize = itemView.update(context: self.context, isSelected: isSelected, theme: params.interfaceState.theme, height: panelHeight, transition: .immediate)
let itemFrame = CGRect(origin: CGPoint(x: contentSize.width, y: -5.0), size: itemSize)
if isSelected {
selectedItemFrame = itemFrame
}
itemTransition.updatePosition(layer: itemView.layer, position: itemFrame.center)
itemTransition.updateBounds(layer: itemView.layer, bounds: CGRect(origin: CGPoint(), size: itemFrame.size))
if animateIn && transition.isAnimated {
itemView.layer.animateAlpha(from: 0.0, to: itemView.alpha, duration: 0.15)
transition.animateTransformScale(view: itemView, from: 0.001)
}
contentSize.width += itemSize.width
}
for item in self.items {
if isFirst {
isFirst = false
} else {
contentSize.width += itemSpacing
}
let itemId = item.id
validIds.append(itemId)
var itemTransition = transition
var animateIn = false
let itemView: ItemView
if let current = self.itemViews[itemId] {
itemView = current
} else {
itemTransition = .immediate
animateIn = true
let chatListItem = item.item
itemView = ItemView(context: self.context, action: { [weak self] in
guard let self else {
return
}
let topicId = chatListItem.renderedPeer.peerId.toInt64()
self.interfaceInteraction?.updateChatLocationThread(topicId)
}, contextGesture: { gesture, sourceNode in
})
self.itemViews[itemId] = itemView
self.scrollView.addSubview(itemView)
}
var isSelected = false
if params.interfaceState.chatLocation.threadId == item.item.renderedPeer.peerId.toInt64() {
isSelected = true
}
let itemSize = itemView.update(context: self.context, item: item, isSelected: isSelected, theme: params.interfaceState.theme, height: panelHeight, transition: .immediate)
let itemFrame = CGRect(origin: CGPoint(x: contentSize.width, y: -5.0), size: itemSize)
if isSelected {
selectedItemFrame = itemFrame
}
itemTransition.updatePosition(layer: itemView.layer, position: itemFrame.center)
itemTransition.updateBounds(layer: itemView.layer, bounds: CGRect(origin: CGPoint(), size: itemFrame.size))
if animateIn && transition.isAnimated {
itemView.layer.animateAlpha(from: 0.0, to: itemView.alpha, duration: 0.15)
transition.animateTransformScale(view: itemView, from: 0.001)
}
contentSize.width += itemSize.width
}
var removedIds: [Item.Id] = []
for (id, itemView) in self.itemViews {
if !validIds.contains(id) {
removedIds.append(id)
if transition.isAnimated {
itemView.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.18, removeOnCompletion: false, completion: { [weak itemView] _ in
itemView?.removeFromSuperview()
})
transition.updateTransformScale(layer: itemView.layer, scale: 0.001)
} else {
itemView.removeFromSuperview()
}
}
}
for id in removedIds {
self.itemViews.removeValue(forKey: id)
}
if let selectedItemFrame {
let lineFrame = CGRect(origin: CGPoint(x: selectedItemFrame.minX, y: panelHeight - 4.0), size: CGSize(width: selectedItemFrame.width + 4.0, height: 4.0))
if self.selectedLineView.isHidden {
self.selectedLineView.isHidden = false
self.selectedLineView.frame = lineFrame
} else {
transition.updateFrame(view: self.selectedLineView, frame: lineFrame)
}
} else {
self.selectedLineView.isHidden = true
}
contentSize.width += containerInsets.right
let scrollSize = CGSize(width: params.width, height: contentSize.height)
if self.scrollView.bounds.size != scrollSize {
self.scrollView.frame = CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: scrollSize)
}
if self.scrollView.contentSize != contentSize {
self.scrollView.contentSize = contentSize
}
let scrollToId: ScrollId
if let threadId = params.interfaceState.chatLocation.threadId {
scrollToId = .topic(threadId)
} else {
scrollToId = .all
}
if self.appliedScrollToId != scrollToId {
if case let .topic(threadId) = scrollToId {
if let itemView = self.itemViews[.forum(threadId)] {
self.appliedScrollToId = scrollToId
self.scrollView.scrollRectToVisible(itemView.frame.insetBy(dx: -46.0, dy: 0.0), animated: hadItemViews)
}
} else if case .all = scrollToId {
self.appliedScrollToId = scrollToId
self.scrollView.scrollRectToVisible(CGRect(origin: CGPoint(), size: CGSize(width: 1.0, height: 1.0)), animated: hadItemViews)
} else {
self.appliedScrollToId = scrollToId
}
}
}
}