mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-06-16 05:55:20 +00:00
864 lines
34 KiB
Swift
864 lines
34 KiB
Swift
import Foundation
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import UIKit
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import AsyncDisplayKit
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import Display
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import SwiftSignalKit
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import Postbox
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import TelegramCore
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import TelegramPresentationData
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import TelegramUIPreferences
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import AccountContext
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import AnimatedCountLabelNode
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private let blue = UIColor(rgb: 0x007fff)
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private let lightBlue = UIColor(rgb: 0x00affe)
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private let green = UIColor(rgb: 0x33c659)
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private let activeBlue = UIColor(rgb: 0x00a0b9)
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private let purple = UIColor(rgb: 0x3252ef)
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private let pink = UIColor(rgb: 0xef436c)
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private let latePurple = UIColor(rgb: 0xaa56a6)
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private let latePink = UIColor(rgb: 0xef476f)
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private class CallStatusBarBackgroundNode: ASDisplayNode {
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enum State {
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case connecting
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case cantSpeak
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case late
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case active
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case speaking
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}
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private let foregroundView: UIView
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private let foregroundGradientLayer: CAGradientLayer
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private let maskCurveView: VoiceCurveView
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private let initialTimestamp = CACurrentMediaTime()
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var audioLevel: Float = 0.0 {
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didSet {
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self.maskCurveView.updateLevel(CGFloat(audioLevel))
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}
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}
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var connectingColor: UIColor = UIColor(rgb: 0xb6b6bb) {
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didSet {
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if self.connectingColor.rgb != oldValue.rgb {
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self.updateGradientColors()
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}
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}
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}
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var state: State = .connecting {
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didSet {
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if self.state != oldValue {
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self.updateGradientColors()
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}
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}
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}
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private func updateGradientColors() {
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let initialColors = self.foregroundGradientLayer.colors
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let targetColors: [CGColor]
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switch self.state {
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case .connecting:
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targetColors = [connectingColor.cgColor, connectingColor.cgColor]
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case .active:
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targetColors = [blue.cgColor, lightBlue.cgColor]
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case .speaking:
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targetColors = [green.cgColor, activeBlue.cgColor]
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case .cantSpeak:
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targetColors = [purple.cgColor, pink.cgColor]
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case .late:
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targetColors = [latePurple.cgColor, latePink.cgColor]
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}
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if CACurrentMediaTime() - self.initialTimestamp > 0.1 {
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self.foregroundGradientLayer.colors = targetColors
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self.foregroundGradientLayer.animate(from: initialColors as AnyObject, to: targetColors as AnyObject, keyPath: "colors", timingFunction: CAMediaTimingFunctionName.linear.rawValue, duration: 0.3)
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} else {
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CATransaction.begin()
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CATransaction.setDisableActions(true)
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self.foregroundGradientLayer.colors = targetColors
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CATransaction.commit()
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}
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}
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private let hierarchyTrackingNode: HierarchyTrackingNode
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private var isCurrentlyInHierarchy = true
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var animationsEnabled: Bool = false {
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didSet {
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self.updateAnimations()
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if !self.animationsEnabled {
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self.maskCurveView.disableCurves()
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}
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}
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}
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override init() {
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self.foregroundView = UIView()
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self.foregroundGradientLayer = CAGradientLayer()
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self.maskCurveView = VoiceCurveView(frame: CGRect(), maxLevel: 1.5, smallCurveRange: (0.0, 0.0), mediumCurveRange: (0.1, 0.55), bigCurveRange: (0.1, 1.0))
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self.maskCurveView.setColor(UIColor(rgb: 0xffffff))
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var updateInHierarchy: ((Bool) -> Void)?
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self.hierarchyTrackingNode = HierarchyTrackingNode({ value in
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updateInHierarchy?(value)
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})
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super.init()
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self.addSubnode(self.hierarchyTrackingNode)
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self.foregroundGradientLayer.colors = [blue.cgColor, lightBlue.cgColor]
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self.foregroundGradientLayer.startPoint = CGPoint(x: 0.0, y: 0.5)
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self.foregroundGradientLayer.endPoint = CGPoint(x: 2.0, y: 0.5)
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self.foregroundView.mask = self.maskCurveView
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self.isOpaque = false
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self.updateAnimations()
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updateInHierarchy = { [weak self] value in
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if let strongSelf = self {
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strongSelf.isCurrentlyInHierarchy = value
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strongSelf.updateAnimations()
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}
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}
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}
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override func didLoad() {
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super.didLoad()
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self.view.addSubview(self.foregroundView)
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self.foregroundView.layer.addSublayer(self.foregroundGradientLayer)
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}
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override func layout() {
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super.layout()
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CATransaction.begin()
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CATransaction.setDisableActions(true)
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if self.maskCurveView.frame != self.bounds {
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self.foregroundView.frame = self.bounds
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self.foregroundGradientLayer.frame = self.bounds
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self.maskCurveView.frame = self.bounds
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}
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CATransaction.commit()
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}
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func updateAnimations() {
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if !self.isCurrentlyInHierarchy || !self.animationsEnabled {
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self.foregroundGradientLayer.removeAllAnimations()
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self.maskCurveView.stopAnimating()
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} else {
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self.maskCurveView.startAnimating()
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}
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}
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}
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public class CallStatusBarNodeImpl: CallStatusBarNode {
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public enum Content {
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case call(SharedAccountContext, Account, PresentationCall)
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case groupCall(SharedAccountContext, Account, PresentationGroupCall)
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var sharedContext: SharedAccountContext {
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switch self {
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case let .call(sharedContext, _, _), let .groupCall(sharedContext, _, _):
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return sharedContext
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}
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}
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}
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private let backgroundNode: CallStatusBarBackgroundNode
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private let titleNode: ImmediateTextNode
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private let subtitleNode: ImmediateAnimatedCountLabelNode
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private let speakerNode: ImmediateTextNode
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private let audioLevelDisposable = MetaDisposable()
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private let stateDisposable = MetaDisposable()
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private var didSetupData = false
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private var currentSize: CGSize?
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private var currentContent: Content?
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private var presentationData: PresentationData?
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private let presentationDataDisposable = MetaDisposable()
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private var currentPeer: Peer?
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private var currentCallTimer: SwiftSignalKit.Timer?
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private var currentCallState: PresentationCallState?
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private var currentGroupCallState: PresentationGroupCallSummaryState?
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private var currentIsMuted = true
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private var currentCantSpeak = false
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private var currentScheduleTimestamp: Int32?
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private var currentMembers: PresentationGroupCallMembers?
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private var currentIsConnected = true
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private let hierarchyTrackingNode: HierarchyTrackingNode
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private var isCurrentlyInHierarchy = true
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public override init() {
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self.backgroundNode = CallStatusBarBackgroundNode()
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self.titleNode = ImmediateTextNode()
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self.subtitleNode = ImmediateAnimatedCountLabelNode()
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self.subtitleNode.reverseAnimationDirection = true
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self.speakerNode = ImmediateTextNode()
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var updateInHierarchy: ((Bool) -> Void)?
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self.hierarchyTrackingNode = HierarchyTrackingNode({ value in
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updateInHierarchy?(value)
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})
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super.init()
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self.addSubnode(self.hierarchyTrackingNode)
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self.addSubnode(self.backgroundNode)
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self.addSubnode(self.titleNode)
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self.addSubnode(self.subtitleNode)
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self.addSubnode(self.speakerNode)
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updateInHierarchy = { [weak self] value in
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if let strongSelf = self {
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strongSelf.isCurrentlyInHierarchy = value
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if value {
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strongSelf.update()
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}
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}
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}
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}
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deinit {
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self.presentationDataDisposable.dispose()
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self.audioLevelDisposable.dispose()
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self.stateDisposable.dispose()
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self.currentCallTimer?.invalidate()
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}
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public func update(content: Content) {
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self.currentContent = content
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self.backgroundNode.animationsEnabled = content.sharedContext.energyUsageSettings.fullTranslucency
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if self.isCurrentlyInHierarchy {
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self.update()
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}
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}
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public override func update(size: CGSize) {
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self.currentSize = size
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self.update()
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}
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private let textFont = Font.with(size: 13.0, design: .regular, weight: .regular, traits: [.monospacedNumbers])
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private func update() {
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guard let size = self.currentSize, let content = self.currentContent else {
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return
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}
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let wasEmpty = (self.titleNode.attributedText?.string ?? "").isEmpty
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if !self.didSetupData {
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self.didSetupData = true
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switch content {
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case let .call(sharedContext, account, call):
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self.presentationData = sharedContext.currentPresentationData.with { $0 }
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self.stateDisposable.set(
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(combineLatest(
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account.postbox.loadedPeerWithId(call.peerId),
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call.state,
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call.isMuted
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)
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|> deliverOnMainQueue).start(next: { [weak self] peer, state, isMuted in
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if let strongSelf = self {
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strongSelf.currentPeer = peer
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strongSelf.currentCallState = state
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strongSelf.currentIsMuted = isMuted
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let currentIsConnected: Bool
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switch state.state {
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case .active, .terminating, .terminated:
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currentIsConnected = true
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default:
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currentIsConnected = false
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}
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strongSelf.currentIsConnected = currentIsConnected
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strongSelf.update()
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}
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}))
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self.audioLevelDisposable.set((call.audioLevel
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|> deliverOnMainQueue).start(next: { [weak self] audioLevel in
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guard let strongSelf = self else {
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return
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}
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strongSelf.backgroundNode.audioLevel = audioLevel
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}))
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case let .groupCall(sharedContext, account, call):
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self.presentationData = sharedContext.currentPresentationData.with { $0 }
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self.presentationDataDisposable.set((sharedContext.presentationData
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|> deliverOnMainQueue).start(next: { [weak self] presentationData in
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if let strongSelf = self {
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strongSelf.presentationData = presentationData
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strongSelf.update()
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}
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}))
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self.stateDisposable.set(
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(combineLatest(
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account.postbox.peerView(id: call.peerId),
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call.summaryState,
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call.isMuted,
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call.members
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)
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|> deliverOnMainQueue).start(next: { [weak self] view, state, isMuted, members in
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if let strongSelf = self {
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strongSelf.currentPeer = view.peers[view.peerId]
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strongSelf.currentGroupCallState = state
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strongSelf.currentMembers = members
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var isMuted = isMuted
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var cantSpeak = false
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if let state = state, let muteState = state.callState.muteState {
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if !muteState.canUnmute {
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isMuted = true
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cantSpeak = true
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}
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}
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if state?.callState.scheduleTimestamp != nil {
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cantSpeak = true
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}
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strongSelf.currentIsMuted = isMuted
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strongSelf.currentCantSpeak = cantSpeak
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strongSelf.currentScheduleTimestamp = state?.callState.scheduleTimestamp
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let currentIsConnected: Bool
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if let state = state, case .connected = state.callState.networkState {
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currentIsConnected = true
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} else if state?.callState.scheduleTimestamp != nil {
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currentIsConnected = true
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} else {
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currentIsConnected = false
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}
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strongSelf.currentIsConnected = currentIsConnected
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if strongSelf.isCurrentlyInHierarchy {
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strongSelf.update()
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}
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}
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}))
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self.audioLevelDisposable.set((combineLatest(call.myAudioLevel, .single([]) |> then(call.audioLevels))
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|> deliverOnMainQueue).start(next: { [weak self] myAudioLevel, audioLevels in
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guard let strongSelf = self else {
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return
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}
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var effectiveLevel: Float = 0.0
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var audioLevels = audioLevels
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if !strongSelf.currentIsMuted {
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audioLevels.append((PeerId(0), 0, myAudioLevel, true))
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}
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effectiveLevel = audioLevels.map { $0.2 }.max() ?? 0.0
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strongSelf.backgroundNode.audioLevel = effectiveLevel
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}))
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}
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}
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var title: String = ""
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var speakerSubtitle: String = ""
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let textColor = UIColor.white
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var segments: [AnimatedCountLabelNode.Segment] = []
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var displaySpeakerSubtitle = false
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var isLate = false
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if let presentationData = self.presentationData {
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if let voiceChatTitle = self.currentGroupCallState?.info?.title, !voiceChatTitle.isEmpty {
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title = voiceChatTitle
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} else if let currentPeer = self.currentPeer {
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title = EnginePeer(currentPeer).displayTitle(strings: presentationData.strings, displayOrder: presentationData.nameDisplayOrder)
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}
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var membersCount: Int32?
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if let groupCallState = self.currentGroupCallState {
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membersCount = Int32(max(1, groupCallState.participantCount))
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} else if let content = self.currentContent, case .groupCall = content {
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membersCount = 1
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}
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var speakingPeer: Peer?
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if let members = currentMembers {
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var speakingPeers: [Peer] = []
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for member in members.participants {
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if members.speakingParticipants.contains(member.peer.id) {
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speakingPeers.append(member.peer)
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}
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}
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speakingPeer = speakingPeers.first
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}
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if let speakingPeer = speakingPeer {
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speakerSubtitle = EnginePeer(speakingPeer).displayTitle(strings: presentationData.strings, displayOrder: presentationData.nameDisplayOrder)
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}
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displaySpeakerSubtitle = speakerSubtitle != title && !speakerSubtitle.isEmpty
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var requiresTimer = false
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if let scheduleTime = self.currentGroupCallState?.info?.scheduleTimestamp {
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requiresTimer = true
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let currentTime = Int32(CFAbsoluteTimeGetCurrent() + kCFAbsoluteTimeIntervalSince1970)
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let elapsedTime = scheduleTime - currentTime
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let timerText: String
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if elapsedTime >= 86400 {
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timerText = presentationData.strings.VoiceChat_StatusStartsIn(scheduledTimeIntervalString(strings: presentationData.strings, value: elapsedTime)).string
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} else if elapsedTime < 0 {
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isLate = true
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timerText = presentationData.strings.VoiceChat_StatusLateBy(textForTimeout(value: abs(elapsedTime))).string
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} else {
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timerText = presentationData.strings.VoiceChat_StatusStartsIn(textForTimeout(value: elapsedTime)).string
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}
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segments.append(.text(0, NSAttributedString(string: timerText, font: textFont, textColor: textColor)))
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} else if let membersCount = membersCount {
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var membersPart = presentationData.strings.VoiceChat_Status_Members(membersCount)
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if membersPart.contains("[") && membersPart.contains("]") {
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if let startIndex = membersPart.firstIndex(of: "["), let endIndex = membersPart.firstIndex(of: "]") {
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membersPart.removeSubrange(startIndex ... endIndex)
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}
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} else {
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membersPart = membersPart.trimmingCharacters(in: CharacterSet(charactersIn: "0123456789-,."))
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}
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let rawTextAndRanges = presentationData.strings.VoiceChat_Status_MembersFormat("\(membersCount)", membersPart)
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var textIndex = 0
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var latestIndex = 0
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for rangeItem in rawTextAndRanges.ranges {
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let index = rangeItem.index
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let range = rangeItem.range
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var lowerSegmentIndex = range.lowerBound
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if index != 0 {
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lowerSegmentIndex = min(lowerSegmentIndex, latestIndex)
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} else {
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if latestIndex < range.lowerBound {
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let part = String(rawTextAndRanges.string[rawTextAndRanges.string.index(rawTextAndRanges.string.startIndex, offsetBy: latestIndex) ..< rawTextAndRanges.string.index(rawTextAndRanges.string.startIndex, offsetBy: range.lowerBound)])
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segments.append(.text(textIndex, NSAttributedString(string: part, font: textFont, textColor: textColor)))
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textIndex += 1
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}
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}
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latestIndex = range.upperBound
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let part = String(rawTextAndRanges.string[rawTextAndRanges.string.index(rawTextAndRanges.string.startIndex, offsetBy: lowerSegmentIndex) ..< rawTextAndRanges.string.index(rawTextAndRanges.string.startIndex, offsetBy: range.upperBound)])
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if index == 0 {
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segments.append(.number(Int(membersCount), NSAttributedString(string: part, font: textFont, textColor: textColor)))
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} else {
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segments.append(.text(textIndex, NSAttributedString(string: part, font: textFont, textColor: textColor)))
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textIndex += 1
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}
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}
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if latestIndex < rawTextAndRanges.string.count {
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let part = String(rawTextAndRanges.string[rawTextAndRanges.string.index(rawTextAndRanges.string.startIndex, offsetBy: latestIndex)...])
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segments.append(.text(textIndex, NSAttributedString(string: part, font: textFont, textColor: textColor)))
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textIndex += 1
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}
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}
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let sourceColor = presentationData.theme.chatList.unreadBadgeInactiveBackgroundColor
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let color: UIColor
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if sourceColor.alpha < 1.0 {
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color = presentationData.theme.chatList.unreadBadgeInactiveBackgroundColor.mixedWith(sourceColor.withAlphaComponent(1.0), alpha: sourceColor.alpha)
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} else {
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color = sourceColor
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}
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self.backgroundNode.connectingColor = color
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if requiresTimer {
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if self.currentCallTimer == nil {
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let timer = SwiftSignalKit.Timer(timeout: 0.5, repeat: true, completion: { [weak self] in
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self?.update()
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}, queue: Queue.mainQueue())
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timer.start()
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self.currentCallTimer = timer
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}
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} else if let currentCallTimer = self.currentCallTimer {
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self.currentCallTimer = nil
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currentCallTimer.invalidate()
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}
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}
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if self.subtitleNode.segments != segments && !displaySpeakerSubtitle {
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self.subtitleNode.segments = segments
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}
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let alphaTransition: ContainedViewLayoutTransition = .animated(duration: 0.2, curve: .easeInOut)
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alphaTransition.updateAlpha(node: self.subtitleNode, alpha: displaySpeakerSubtitle ? 0.0 : 1.0)
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alphaTransition.updateAlpha(node: self.speakerNode, alpha: displaySpeakerSubtitle ? 1.0 : 0.0)
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self.titleNode.attributedText = NSAttributedString(string: title, font: Font.semibold(13.0), textColor: .white)
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if displaySpeakerSubtitle {
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self.speakerNode.attributedText = NSAttributedString(string: speakerSubtitle, font: Font.regular(13.0), textColor: .white)
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}
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let spacing: CGFloat = 5.0
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let titleSize = self.titleNode.updateLayout(CGSize(width: 150.0, height: size.height))
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let subtitleSize = self.subtitleNode.updateLayout(size: CGSize(width: 150.0, height: size.height), animated: true)
|
|
let speakerSize = self.speakerNode.updateLayout(CGSize(width: 150.0, height: size.height))
|
|
|
|
let totalWidth = titleSize.width + spacing + subtitleSize.width
|
|
let horizontalOrigin: CGFloat = floor((size.width - totalWidth) / 2.0)
|
|
|
|
let contentHeight: CGFloat = 24.0
|
|
let verticalOrigin: CGFloat = size.height - contentHeight
|
|
|
|
let sizeChanged = self.titleNode.frame.size.width != titleSize.width
|
|
|
|
let transition: ContainedViewLayoutTransition = wasEmpty || sizeChanged ? .immediate : .animated(duration: 0.2, curve: .easeInOut)
|
|
transition.updateFrame(node: self.titleNode, frame: CGRect(origin: CGPoint(x: horizontalOrigin, y: verticalOrigin + floor((contentHeight - titleSize.height) / 2.0)), size: titleSize))
|
|
transition.updateFrame(node: self.subtitleNode, frame: CGRect(origin: CGPoint(x: horizontalOrigin + titleSize.width + spacing, y: verticalOrigin + floor((contentHeight - subtitleSize.height) / 2.0)), size: subtitleSize))
|
|
|
|
if displaySpeakerSubtitle {
|
|
self.speakerNode.frame = CGRect(origin: CGPoint(x: horizontalOrigin + titleSize.width + spacing, y: verticalOrigin + floor((contentHeight - speakerSize.height) / 2.0)), size: speakerSize)
|
|
}
|
|
|
|
let state: CallStatusBarBackgroundNode.State
|
|
if self.currentIsConnected {
|
|
if self.currentCantSpeak {
|
|
state = isLate ? .late : .cantSpeak
|
|
} else if self.currentIsMuted {
|
|
state = .active
|
|
} else {
|
|
state = .speaking
|
|
}
|
|
} else {
|
|
state = .connecting
|
|
}
|
|
self.backgroundNode.state = state
|
|
self.backgroundNode.frame = CGRect(origin: CGPoint(), size: CGSize(width: size.width, height: size.height + 18.0))
|
|
}
|
|
}
|
|
|
|
private final class VoiceCurveView: UIView {
|
|
private let smallCurve: CurveView
|
|
private let mediumCurve: CurveView
|
|
private let bigCurve: CurveView
|
|
private var solidView: UIView?
|
|
|
|
private let maxLevel: CGFloat
|
|
|
|
private var displayLinkAnimator: ConstantDisplayLinkAnimator?
|
|
|
|
private var audioLevel: CGFloat = 0.0
|
|
var presentationAudioLevel: CGFloat = 0.0
|
|
|
|
private(set) var isAnimating = false
|
|
|
|
public typealias CurveRange = (min: CGFloat, max: CGFloat)
|
|
|
|
public init(
|
|
frame: CGRect,
|
|
maxLevel: CGFloat,
|
|
smallCurveRange: CurveRange,
|
|
mediumCurveRange: CurveRange,
|
|
bigCurveRange: CurveRange
|
|
) {
|
|
self.maxLevel = maxLevel
|
|
|
|
self.smallCurve = CurveView(
|
|
pointsCount: 8,
|
|
minRandomness: 1,
|
|
maxRandomness: 1.3,
|
|
minSpeed: 0.9,
|
|
maxSpeed: 3.2,
|
|
minOffset: smallCurveRange.min,
|
|
maxOffset: smallCurveRange.max
|
|
)
|
|
self.mediumCurve = CurveView(
|
|
pointsCount: 8,
|
|
minRandomness: 1.2,
|
|
maxRandomness: 1.5,
|
|
minSpeed: 1.0,
|
|
maxSpeed: 4.4,
|
|
minOffset: mediumCurveRange.min,
|
|
maxOffset: mediumCurveRange.max
|
|
)
|
|
self.bigCurve = CurveView(
|
|
pointsCount: 8,
|
|
minRandomness: 1.2,
|
|
maxRandomness: 1.7,
|
|
minSpeed: 1.0,
|
|
maxSpeed: 5.8,
|
|
minOffset: bigCurveRange.min,
|
|
maxOffset: bigCurveRange.max
|
|
)
|
|
|
|
super.init(frame: frame)
|
|
|
|
self.addSubview(self.bigCurve)
|
|
self.addSubview(self.mediumCurve)
|
|
self.addSubview(self.smallCurve)
|
|
|
|
self.displayLinkAnimator = ConstantDisplayLinkAnimator() { [weak self] in
|
|
guard let strongSelf = self else { return }
|
|
|
|
strongSelf.presentationAudioLevel = strongSelf.presentationAudioLevel * 0.9 + strongSelf.audioLevel * 0.1
|
|
|
|
strongSelf.smallCurve.level = strongSelf.presentationAudioLevel
|
|
strongSelf.mediumCurve.level = strongSelf.presentationAudioLevel
|
|
strongSelf.bigCurve.level = strongSelf.presentationAudioLevel
|
|
}
|
|
}
|
|
|
|
required init?(coder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
public func setColor(_ color: UIColor) {
|
|
self.smallCurve.setColor(color.withAlphaComponent(1.0))
|
|
self.mediumCurve.setColor(color.withAlphaComponent(0.55))
|
|
self.bigCurve.setColor(color.withAlphaComponent(0.35))
|
|
}
|
|
|
|
public func updateLevel(_ level: CGFloat) {
|
|
let normalizedLevel = min(1, max(level / self.maxLevel, 0))
|
|
|
|
self.smallCurve.updateSpeedLevel(to: normalizedLevel)
|
|
self.mediumCurve.updateSpeedLevel(to: normalizedLevel)
|
|
self.bigCurve.updateSpeedLevel(to: normalizedLevel)
|
|
|
|
self.audioLevel = normalizedLevel
|
|
}
|
|
|
|
public func startAnimating() {
|
|
guard !self.isAnimating else { return }
|
|
self.isAnimating = true
|
|
|
|
if let solidView = self.solidView {
|
|
solidView.removeFromSuperview()
|
|
self.solidView = nil
|
|
}
|
|
|
|
self.updateCurvesState()
|
|
|
|
self.displayLinkAnimator?.isPaused = false
|
|
}
|
|
|
|
public func stopAnimating() {
|
|
self.stopAnimating(duration: 0.15)
|
|
}
|
|
|
|
public func stopAnimating(duration: Double) {
|
|
guard self.isAnimating else { return }
|
|
self.isAnimating = false
|
|
|
|
self.updateCurvesState()
|
|
|
|
self.displayLinkAnimator?.isPaused = true
|
|
}
|
|
|
|
func disableCurves() {
|
|
self.smallCurve.isHidden = true
|
|
self.mediumCurve.isHidden = true
|
|
self.bigCurve.isHidden = true
|
|
|
|
let view = UIView(frame: .zero)
|
|
view.backgroundColor = .white
|
|
self.addSubview(view)
|
|
self.solidView = view
|
|
}
|
|
|
|
private func updateCurvesState() {
|
|
if self.isAnimating {
|
|
if self.smallCurve.frame.size != .zero {
|
|
self.smallCurve.startAnimating()
|
|
self.mediumCurve.startAnimating()
|
|
self.bigCurve.startAnimating()
|
|
}
|
|
} else {
|
|
self.smallCurve.stopAnimating()
|
|
self.mediumCurve.stopAnimating()
|
|
self.bigCurve.stopAnimating()
|
|
}
|
|
}
|
|
|
|
override public func layoutSubviews() {
|
|
super.layoutSubviews()
|
|
|
|
self.smallCurve.frame = self.bounds
|
|
self.mediumCurve.frame = self.bounds
|
|
self.bigCurve.frame = self.bounds
|
|
self.solidView?.frame = CGRect(origin: .zero, size: CGSize(width: self.bounds.width, height: self.bounds.height - 18.0))
|
|
|
|
self.updateCurvesState()
|
|
}
|
|
}
|
|
|
|
final class CurveView: UIView {
|
|
let pointsCount: Int
|
|
let smoothness: CGFloat
|
|
|
|
let minRandomness: CGFloat
|
|
let maxRandomness: CGFloat
|
|
|
|
let minSpeed: CGFloat
|
|
let maxSpeed: CGFloat
|
|
|
|
let minOffset: CGFloat
|
|
let maxOffset: CGFloat
|
|
|
|
var level: CGFloat = 0 {
|
|
didSet {
|
|
guard self.minOffset > 0.0 else {
|
|
return
|
|
}
|
|
CATransaction.begin()
|
|
CATransaction.setDisableActions(true)
|
|
let lv = self.minOffset + (self.maxOffset - self.minOffset) * self.level
|
|
self.shapeLayer.transform = CATransform3DMakeTranslation(0.0, lv * 16.0, 0.0)
|
|
CATransaction.commit()
|
|
}
|
|
}
|
|
|
|
private var speedLevel: CGFloat = 0
|
|
private var lastSpeedLevel: CGFloat = 0
|
|
|
|
private let shapeLayer: CAShapeLayer = {
|
|
let layer = CAShapeLayer()
|
|
layer.strokeColor = nil
|
|
return layer
|
|
}()
|
|
|
|
override var frame: CGRect {
|
|
didSet {
|
|
if self.frame.size != oldValue.size {
|
|
self.shapeLayer.path = nil
|
|
self.animateToNewShape()
|
|
}
|
|
}
|
|
}
|
|
|
|
init(
|
|
pointsCount: Int,
|
|
minRandomness: CGFloat,
|
|
maxRandomness: CGFloat,
|
|
minSpeed: CGFloat,
|
|
maxSpeed: CGFloat,
|
|
minOffset: CGFloat,
|
|
maxOffset: CGFloat
|
|
) {
|
|
self.pointsCount = pointsCount
|
|
self.minRandomness = minRandomness
|
|
self.maxRandomness = maxRandomness
|
|
self.minSpeed = minSpeed
|
|
self.maxSpeed = maxSpeed
|
|
self.minOffset = minOffset
|
|
self.maxOffset = maxOffset
|
|
|
|
self.smoothness = 0.35
|
|
|
|
super.init(frame: .zero)
|
|
|
|
self.layer.addSublayer(self.shapeLayer)
|
|
}
|
|
|
|
required init?(coder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
func setColor(_ color: UIColor) {
|
|
self.shapeLayer.fillColor = color.cgColor
|
|
}
|
|
|
|
func updateSpeedLevel(to newSpeedLevel: CGFloat) {
|
|
self.speedLevel = max(self.speedLevel, newSpeedLevel)
|
|
}
|
|
|
|
func startAnimating() {
|
|
self.animateToNewShape()
|
|
}
|
|
|
|
func stopAnimating() {
|
|
self.shapeLayer.removeAnimation(forKey: "path")
|
|
}
|
|
|
|
private func animateToNewShape() {
|
|
if self.shapeLayer.path == nil {
|
|
let points = self.generateNextCurve(for: self.bounds.size)
|
|
self.shapeLayer.path = UIBezierPath.smoothCurve(through: points, length: bounds.width, smoothness: self.smoothness, curve: true).cgPath
|
|
}
|
|
|
|
let nextPoints = self.generateNextCurve(for: self.bounds.size)
|
|
let nextPath = UIBezierPath.smoothCurve(through: nextPoints, length: bounds.width, smoothness: self.smoothness, curve: true).cgPath
|
|
|
|
let animation = CABasicAnimation(keyPath: "path")
|
|
let previousPath = self.shapeLayer.path
|
|
self.shapeLayer.path = nextPath
|
|
animation.duration = CFTimeInterval(1 / (self.minSpeed + (self.maxSpeed - self.minSpeed) * self.speedLevel))
|
|
animation.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
|
|
animation.fromValue = previousPath
|
|
animation.toValue = nextPath
|
|
animation.isRemovedOnCompletion = false
|
|
animation.fillMode = .forwards
|
|
animation.completion = { [weak self] finished in
|
|
if finished {
|
|
self?.animateToNewShape()
|
|
}
|
|
}
|
|
self.shapeLayer.add(animation, forKey: "path")
|
|
|
|
self.lastSpeedLevel = self.speedLevel
|
|
self.speedLevel = 0
|
|
}
|
|
|
|
private func generateNextCurve(for size: CGSize) -> [CGPoint] {
|
|
let randomness = minRandomness + (maxRandomness - minRandomness) * speedLevel
|
|
return curve(pointsCount: pointsCount, randomness: randomness).map {
|
|
return CGPoint(x: $0.x * CGFloat(size.width), y: size.height - 18.0 + $0.y * 12.0)
|
|
}
|
|
}
|
|
|
|
private func curve(pointsCount: Int, randomness: CGFloat) -> [CGPoint] {
|
|
let segment = 1.0 / CGFloat(pointsCount - 1)
|
|
|
|
let rgen = { () -> CGFloat in
|
|
let accuracy: UInt32 = 1000
|
|
let random = arc4random_uniform(accuracy)
|
|
return CGFloat(random) / CGFloat(accuracy)
|
|
}
|
|
let rangeStart: CGFloat = 1.0 / (1.0 + randomness / 10.0)
|
|
|
|
let points = (0 ..< pointsCount).map { i -> CGPoint in
|
|
let randPointOffset = (rangeStart + CGFloat(rgen()) * (1 - rangeStart)) / 2
|
|
let segmentRandomness: CGFloat = randomness
|
|
|
|
let pointX: CGFloat
|
|
let pointY: CGFloat
|
|
let randomXDelta: CGFloat
|
|
if i == 0 {
|
|
pointX = 0.0
|
|
pointY = 0.0
|
|
randomXDelta = 0.0
|
|
} else if i == pointsCount - 1 {
|
|
pointX = 1.0
|
|
pointY = 0.0
|
|
randomXDelta = 0.0
|
|
} else {
|
|
pointX = segment * CGFloat(i)
|
|
pointY = ((segmentRandomness * CGFloat(arc4random_uniform(100)) / CGFloat(100)) - segmentRandomness * 0.5) * randPointOffset
|
|
randomXDelta = segment - segment * randPointOffset
|
|
}
|
|
|
|
return CGPoint(x: pointX + randomXDelta, y: pointY)
|
|
}
|
|
|
|
return points
|
|
}
|
|
|
|
override func layoutSubviews() {
|
|
super.layoutSubviews()
|
|
|
|
CATransaction.begin()
|
|
CATransaction.setDisableActions(true)
|
|
self.shapeLayer.position = CGPoint(x: self.bounds.width / 2.0, y: self.bounds.height / 2.0)
|
|
self.shapeLayer.bounds = self.bounds
|
|
CATransaction.commit()
|
|
}
|
|
}
|