Swiftgram/submodules/ChatListUI/Sources/ChatListShimmerNode.swift
2024-01-06 00:43:58 +04:00

291 lines
16 KiB
Swift

import Foundation
import UIKit
import AsyncDisplayKit
import Display
import TelegramPresentationData
import AccountContext
import AnimationCache
import MultiAnimationRenderer
import TelegramCore
final class ShimmerEffectNode: ASDisplayNode {
private var currentBackgroundColor: UIColor?
private var currentForegroundColor: UIColor?
private let imageNodeContainer: ASDisplayNode
private let imageNode: ASImageNode
private var absoluteLocation: (CGRect, CGSize)?
private var isCurrentlyInHierarchy = false
private var shouldBeAnimating = false
override init() {
self.imageNodeContainer = ASDisplayNode()
self.imageNodeContainer.isLayerBacked = true
self.imageNode = ASImageNode()
self.imageNode.isLayerBacked = true
self.imageNode.displaysAsynchronously = false
self.imageNode.displayWithoutProcessing = true
self.imageNode.contentMode = .scaleToFill
super.init()
self.isLayerBacked = true
self.clipsToBounds = true
self.imageNodeContainer.addSubnode(self.imageNode)
self.addSubnode(self.imageNodeContainer)
}
override func didEnterHierarchy() {
super.didEnterHierarchy()
self.isCurrentlyInHierarchy = true
self.updateAnimation()
}
override func didExitHierarchy() {
super.didExitHierarchy()
self.isCurrentlyInHierarchy = false
self.updateAnimation()
}
func update(backgroundColor: UIColor, foregroundColor: UIColor) {
if let currentBackgroundColor = self.currentBackgroundColor, currentBackgroundColor.isEqual(backgroundColor), let currentForegroundColor = self.currentForegroundColor, currentForegroundColor.isEqual(foregroundColor) {
return
}
self.currentBackgroundColor = backgroundColor
self.currentForegroundColor = foregroundColor
self.imageNode.image = generateImage(CGSize(width: 4.0, height: 320.0), opaque: true, scale: 1.0, rotatedContext: { size, context in
context.setFillColor(backgroundColor.cgColor)
context.fill(CGRect(origin: CGPoint(), size: size))
context.clip(to: CGRect(origin: CGPoint(), size: size))
let transparentColor = foregroundColor.withAlphaComponent(0.0).cgColor
let peakColor = foregroundColor.cgColor
var locations: [CGFloat] = [0.0, 0.5, 1.0]
let colors: [CGColor] = [transparentColor, peakColor, transparentColor]
let colorSpace = CGColorSpaceCreateDeviceRGB()
let gradient = CGGradient(colorsSpace: colorSpace, colors: colors as CFArray, locations: &locations)!
context.drawLinearGradient(gradient, start: CGPoint(x: 0.0, y: 0.0), end: CGPoint(x: 0.0, y: size.height), options: CGGradientDrawingOptions())
})
}
func updateAbsoluteRect(_ rect: CGRect, within containerSize: CGSize) {
if let absoluteLocation = self.absoluteLocation, absoluteLocation.0 == rect && absoluteLocation.1 == containerSize {
return
}
let sizeUpdated = self.absoluteLocation?.1 != containerSize
let frameUpdated = self.absoluteLocation?.0 != rect
self.absoluteLocation = (rect, containerSize)
if sizeUpdated {
if self.shouldBeAnimating {
self.imageNode.layer.removeAnimation(forKey: "shimmer")
self.addImageAnimation()
}
}
if frameUpdated {
self.imageNodeContainer.frame = CGRect(origin: CGPoint(x: -rect.minX, y: -rect.minY), size: containerSize)
}
self.updateAnimation()
}
private func updateAnimation() {
let shouldBeAnimating = self.isCurrentlyInHierarchy && self.absoluteLocation != nil
if shouldBeAnimating != self.shouldBeAnimating {
self.shouldBeAnimating = shouldBeAnimating
if shouldBeAnimating {
self.addImageAnimation()
} else {
self.imageNode.layer.removeAnimation(forKey: "shimmer")
}
}
}
private func addImageAnimation() {
guard let containerSize = self.absoluteLocation?.1 else {
return
}
let gradientHeight: CGFloat = 250.0
self.imageNode.frame = CGRect(origin: CGPoint(x: 0.0, y: -gradientHeight), size: CGSize(width: containerSize.width, height: gradientHeight))
let animation = self.imageNode.layer.makeAnimation(from: 0.0 as NSNumber, to: (containerSize.height + gradientHeight) as NSNumber, keyPath: "position.y", timingFunction: CAMediaTimingFunctionName.easeOut.rawValue, duration: 1.3 * 1.0, delay: 0.0, mediaTimingFunction: nil, removeOnCompletion: true, additive: true)
animation.repeatCount = Float.infinity
animation.beginTime = 1.0
self.imageNode.layer.add(animation, forKey: "shimmer")
}
}
public final class ChatListShimmerNode: ASDisplayNode {
private let backgroundColorNode: ASDisplayNode
private let effectNode: ShimmerEffectNode
private let maskNode: ASImageNode
private var currentParams: (size: CGSize, presentationData: PresentationData)?
override public init() {
self.backgroundColorNode = ASDisplayNode()
self.effectNode = ShimmerEffectNode()
self.maskNode = ASImageNode()
super.init()
self.isUserInteractionEnabled = false
self.addSubnode(self.backgroundColorNode)
self.addSubnode(self.effectNode)
self.addSubnode(self.maskNode)
}
public func update(context: AccountContext, animationCache: AnimationCache, animationRenderer: MultiAnimationRenderer, size: CGSize, isInlineMode: Bool, presentationData: PresentationData, transition: ContainedViewLayoutTransition) {
if self.currentParams?.size != size || self.currentParams?.presentationData !== presentationData {
self.currentParams = (size, presentationData)
let chatListPresentationData = ChatListPresentationData(theme: presentationData.theme, fontSize: presentationData.chatFontSize, strings: presentationData.strings, dateTimeFormat: presentationData.dateTimeFormat, nameSortOrder: presentationData.nameSortOrder, nameDisplayOrder: presentationData.nameDisplayOrder, disableAnimations: true)
let peer1: EnginePeer = .user(TelegramUser(id: EnginePeer.Id(namespace: Namespaces.Peer.CloudUser, id: EnginePeer.Id.Id._internalFromInt64Value(0)), accessHash: nil, firstName: "FirstName", lastName: nil, username: nil, phone: nil, photo: [], botInfo: nil, restrictionInfo: nil, flags: [], emojiStatus: nil, usernames: [], storiesHidden: nil, nameColor: nil, backgroundEmojiId: nil, profileColor: nil, profileBackgroundEmojiId: nil))
let timestamp1: Int32 = 100000
let peers: [EnginePeer.Id: EnginePeer] = [:]
let interaction = ChatListNodeInteraction(context: context, animationCache: animationCache, animationRenderer: animationRenderer, activateSearch: {}, peerSelected: { _, _, _, _ in }, disabledPeerSelected: { _, _ in }, togglePeerSelected: { _, _ in }, togglePeersSelection: { _, _ in }, additionalCategorySelected: { _ in
}, messageSelected: { _, _, _, _ in}, groupSelected: { _ in }, addContact: { _ in }, setPeerIdWithRevealedOptions: { _, _ in }, setItemPinned: { _, _ in }, setPeerMuted: { _, _ in }, setPeerThreadMuted: { _, _, _ in }, deletePeer: { _, _ in }, deletePeerThread: { _, _ in }, setPeerThreadStopped: { _, _, _ in }, setPeerThreadPinned: { _, _, _ in }, setPeerThreadHidden: { _, _, _ in }, updatePeerGrouping: { _, _ in }, togglePeerMarkedUnread: { _, _ in}, toggleArchivedFolderHiddenByDefault: {}, toggleThreadsSelection: { _, _ in }, hidePsa: { _ in }, activateChatPreview: { _, _, _, gesture, _ in
gesture?.cancel()
}, present: { _ in }, openForumThread: { _, _ in }, openStorageManagement: {}, openPasswordSetup: {}, openPremiumIntro: {}, openPremiumGift: {}, openActiveSessions: {}, performActiveSessionAction: { _, _ in }, openChatFolderUpdates: {}, hideChatFolderUpdates: {}, openStories: { _, _ in }, dismissNotice: { _ in
})
interaction.isInlineMode = isInlineMode
let items = (0 ..< 2).map { _ -> ChatListItem in
let message = EngineMessage(
stableId: 0,
stableVersion: 0,
id: EngineMessage.Id(peerId: peer1.id, namespace: 0, id: 0),
globallyUniqueId: nil,
groupingKey: nil,
groupInfo: nil,
threadId: nil,
timestamp: timestamp1,
flags: [],
tags: [],
globalTags: [],
localTags: [],
customTags: [],
forwardInfo: nil,
author: peer1,
text: "Text",
attributes: [],
media: [],
peers: peers,
associatedMessages: [:],
associatedMessageIds: [],
associatedMedia: [:],
associatedThreadInfo: nil,
associatedStories: [:]
)
let readState = EnginePeerReadCounters()
return ChatListItem(presentationData: chatListPresentationData, context: context, chatListLocation: .chatList(groupId: .root), filterData: nil, index: .chatList(EngineChatList.Item.Index.ChatList(pinningIndex: 0, messageIndex: EngineMessage.Index(id: EngineMessage.Id(peerId: peer1.id, namespace: 0, id: 0), timestamp: timestamp1))), content: .peer(ChatListItemContent.PeerData(
messages: [message],
peer: EngineRenderedPeer(peer: peer1),
threadInfo: nil,
combinedReadState: readState,
isRemovedFromTotalUnreadCount: false,
presence: nil,
hasUnseenMentions: false,
hasUnseenReactions: false,
draftState: nil,
inputActivities: nil,
promoInfo: nil,
ignoreUnreadBadge: false,
displayAsMessage: false,
hasFailedMessages: false,
forumTopicData: nil,
topForumTopicItems: [],
autoremoveTimeout: nil,
storyState: nil
)), editing: false, hasActiveRevealControls: false, selected: false, header: nil, enableContextActions: false, hiddenOffset: false, interaction: interaction)
}
var itemNodes: [ChatListItemNode] = []
for i in 0 ..< items.count {
items[i].nodeConfiguredForParams(async: { f in f() }, params: ListViewItemLayoutParams(width: size.width, leftInset: 0.0, rightInset: 0.0, availableHeight: 100.0), synchronousLoads: false, previousItem: i == 0 ? nil : items[i - 1], nextItem: (i == items.count - 1) ? nil : items[i + 1], completion: { node, apply in
if let itemNode = node as? ChatListItemNode {
itemNodes.append(itemNode)
}
apply().1(ListViewItemApply(isOnScreen: true))
})
}
self.backgroundColorNode.backgroundColor = presentationData.theme.list.mediaPlaceholderColor
self.maskNode.image = generateImage(size, rotatedContext: { size, context in
context.setFillColor(presentationData.theme.chatList.backgroundColor.cgColor)
context.fill(CGRect(origin: CGPoint(), size: size))
var currentY: CGFloat = 0.0
let fakeLabelPlaceholderHeight: CGFloat = 8.0
func fillLabelPlaceholderRect(origin: CGPoint, width: CGFloat) {
let startPoint = origin
let diameter = fakeLabelPlaceholderHeight
context.fillEllipse(in: CGRect(origin: startPoint, size: CGSize(width: diameter, height: diameter)))
context.fillEllipse(in: CGRect(origin: CGPoint(x: startPoint.x + width - diameter, y: startPoint.y), size: CGSize(width: diameter, height: diameter)))
context.fill(CGRect(origin: CGPoint(x: startPoint.x + diameter / 2.0, y: startPoint.y), size: CGSize(width: width - diameter, height: diameter)))
}
while currentY < size.height {
let sampleIndex = 0
let itemHeight: CGFloat = itemNodes[sampleIndex].contentSize.height
context.setBlendMode(.copy)
context.setFillColor(UIColor.clear.cgColor)
if !isInlineMode {
if !itemNodes[sampleIndex].avatarNode.isHidden {
context.fillEllipse(in: itemNodes[sampleIndex].avatarNode.view.convert(itemNodes[sampleIndex].avatarNode.bounds, to: itemNodes[sampleIndex].view).offsetBy(dx: 0.0, dy: currentY))
}
}
let titleFrame = itemNodes[sampleIndex].titleNode.frame.offsetBy(dx: 0.0, dy: currentY)
if isInlineMode {
fillLabelPlaceholderRect(origin: CGPoint(x: titleFrame.minX + 22.0, y: floor(titleFrame.midY - fakeLabelPlaceholderHeight / 2.0)), width: 60.0 - 22.0)
} else {
fillLabelPlaceholderRect(origin: CGPoint(x: titleFrame.minX, y: floor(titleFrame.midY - fakeLabelPlaceholderHeight / 2.0)), width: 60.0)
}
let textFrame = itemNodes[sampleIndex].textNode.textNode.frame.offsetBy(dx: 0.0, dy: currentY)
if isInlineMode {
context.fillEllipse(in: CGRect(origin: CGPoint(x: textFrame.minX, y: titleFrame.minY + 2.0), size: CGSize(width: 16.0, height: 16.0)))
}
fillLabelPlaceholderRect(origin: CGPoint(x: textFrame.minX, y: currentY + itemHeight - floor(itemNodes[sampleIndex].titleNode.frame.midY - fakeLabelPlaceholderHeight / 2.0) - fakeLabelPlaceholderHeight), width: 60.0)
fillLabelPlaceholderRect(origin: CGPoint(x: textFrame.minX, y: currentY + floor((itemHeight - fakeLabelPlaceholderHeight) / 2.0)), width: 120.0)
fillLabelPlaceholderRect(origin: CGPoint(x: textFrame.minX + 120.0 + 10.0, y: currentY + floor((itemHeight - fakeLabelPlaceholderHeight) / 2.0)), width: 60.0)
let dateFrame = itemNodes[sampleIndex].dateNode.frame.offsetBy(dx: 0.0, dy: currentY)
fillLabelPlaceholderRect(origin: CGPoint(x: dateFrame.maxX - 30.0, y: dateFrame.minY), width: 30.0)
context.setBlendMode(.normal)
context.setFillColor(presentationData.theme.chatList.itemSeparatorColor.cgColor)
context.fill(itemNodes[sampleIndex].separatorNode.frame.offsetBy(dx: 0.0, dy: currentY))
currentY += itemHeight
}
})
self.effectNode.update(backgroundColor: presentationData.theme.list.mediaPlaceholderColor, foregroundColor: presentationData.theme.list.itemBlocksBackgroundColor.withAlphaComponent(0.4))
self.effectNode.updateAbsoluteRect(CGRect(origin: CGPoint(), size: size), within: size)
}
transition.updateFrame(node: self.backgroundColorNode, frame: CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: size))
transition.updateFrame(node: self.maskNode, frame: CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: size))
transition.updateFrame(node: self.effectNode, frame: CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: size))
}
}