Files
Swiftgram/submodules/Components/ResizableSheetComponent/Sources/ResizableSheetComponent.swift
2026-02-04 16:36:09 +04:00

829 lines
40 KiB
Swift

import Foundation
import UIKit
import Display
import ComponentFlow
import ViewControllerComponent
import SwiftSignalKit
import DynamicCornerRadiusView
import TelegramPresentationData
import EdgeEffect
public final class ResizableSheetComponentEnvironment: Equatable {
public struct BoundsUpdate {
public let bounds: CGRect
public let isInteractive: Bool
}
public let theme: PresentationTheme
public let statusBarHeight: CGFloat
public let safeInsets: UIEdgeInsets
public let metrics: LayoutMetrics
public let deviceMetrics: DeviceMetrics
public let isDisplaying: Bool
public let isCentered: Bool
public let screenSize: CGSize
public let regularMetricsSize: CGSize?
public let dismiss: (Bool) -> Void
public let boundsUpdated: ActionSlot<BoundsUpdate>
public init(
theme: PresentationTheme,
statusBarHeight: CGFloat,
safeInsets: UIEdgeInsets,
metrics: LayoutMetrics,
deviceMetrics: DeviceMetrics,
isDisplaying: Bool,
isCentered: Bool,
screenSize: CGSize,
regularMetricsSize: CGSize?,
dismiss: @escaping (Bool) -> Void,
boundsUpdated: ActionSlot<BoundsUpdate> = ActionSlot<BoundsUpdate>()
) {
self.theme = theme
self.statusBarHeight = statusBarHeight
self.safeInsets = safeInsets
self.metrics = metrics
self.deviceMetrics = deviceMetrics
self.isDisplaying = isDisplaying
self.isCentered = isCentered
self.screenSize = screenSize
self.regularMetricsSize = regularMetricsSize
self.dismiss = dismiss
self.boundsUpdated = boundsUpdated
}
public static func ==(lhs: ResizableSheetComponentEnvironment, rhs: ResizableSheetComponentEnvironment) -> Bool {
if lhs.theme != rhs.theme {
return false
}
if lhs.statusBarHeight != rhs.statusBarHeight {
return false
}
if lhs.safeInsets != rhs.safeInsets {
return false
}
if lhs.metrics != rhs.metrics {
return false
}
if lhs.deviceMetrics != rhs.deviceMetrics {
return false
}
if lhs.isDisplaying != rhs.isDisplaying {
return false
}
if lhs.isCentered != rhs.isCentered {
return false
}
if lhs.screenSize != rhs.screenSize {
return false
}
if lhs.regularMetricsSize != rhs.regularMetricsSize {
return false
}
return true
}
}
public final class ResizableSheetComponent<ChildEnvironmentType: Sendable & Equatable>: Component {
public typealias EnvironmentType = (ChildEnvironmentType, ResizableSheetComponentEnvironment)
public class ExternalState {
public fileprivate(set) var contentHeight: CGFloat
public init() {
self.contentHeight = 0.0
}
}
public enum BackgroundColor: Equatable {
case color(UIColor)
}
public let content: AnyComponent<ChildEnvironmentType>
public let titleItem: AnyComponent<Empty>?
public let leftItem: AnyComponent<Empty>?
public let rightItem: AnyComponent<Empty>?
public let hasTopEdgeEffect: Bool
public let bottomItem: AnyComponent<Empty>?
public let backgroundColor: BackgroundColor
public let isFullscreen: Bool
public let externalState: ExternalState?
public let animateOut: ActionSlot<Action<()>>
public init(
content: AnyComponent<ChildEnvironmentType>,
titleItem: AnyComponent<Empty>? = nil,
leftItem: AnyComponent<Empty>? = nil,
rightItem: AnyComponent<Empty>? = nil,
hasTopEdgeEffect: Bool = true,
bottomItem: AnyComponent<Empty>? = nil,
backgroundColor: BackgroundColor,
isFullscreen: Bool = false,
externalState: ExternalState? = nil,
animateOut: ActionSlot<Action<()>>,
) {
self.content = content
self.titleItem = titleItem
self.leftItem = leftItem
self.rightItem = rightItem
self.hasTopEdgeEffect = hasTopEdgeEffect
self.bottomItem = bottomItem
self.backgroundColor = backgroundColor
self.isFullscreen = isFullscreen
self.externalState = externalState
self.animateOut = animateOut
}
public static func ==(lhs: ResizableSheetComponent, rhs: ResizableSheetComponent) -> Bool {
if lhs.content != rhs.content {
return false
}
if lhs.titleItem != rhs.titleItem {
return false
}
if lhs.leftItem != rhs.leftItem {
return false
}
if lhs.rightItem != rhs.rightItem {
return false
}
if lhs.hasTopEdgeEffect != rhs.hasTopEdgeEffect {
return false
}
if lhs.bottomItem != rhs.bottomItem {
return false
}
if lhs.backgroundColor != rhs.backgroundColor {
return false
}
if lhs.isFullscreen != rhs.isFullscreen {
return false
}
if lhs.animateOut != rhs.animateOut {
return false
}
return true
}
private struct ItemLayout: Equatable {
var containerSize: CGSize
var containerInset: CGFloat
var containerCornerRadius: CGFloat
var bottomInset: CGFloat
var topInset: CGFloat
var fillingSize: CGFloat
let isTablet: Bool
init(containerSize: CGSize, containerInset: CGFloat, containerCornerRadius: CGFloat, bottomInset: CGFloat, topInset: CGFloat, fillingSize: CGFloat, isTablet: Bool) {
self.containerSize = containerSize
self.containerInset = containerInset
self.containerCornerRadius = containerCornerRadius
self.bottomInset = bottomInset
self.topInset = topInset
self.fillingSize = fillingSize
self.isTablet = isTablet
}
}
private final class ScrollView: UIScrollView {
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
return super.hitTest(point, with: event)
}
}
public final class View: UIView, UIScrollViewDelegate, ComponentTaggedView, UIGestureRecognizerDelegate {
public final class Tag {
public init() {
}
}
public func matches(tag: Any) -> Bool {
if let _ = tag as? Tag {
return true
}
return false
}
private let dimView: UIView
private let containerView: UIView
private let backgroundLayer: SimpleLayer
private let navigationBarContainer: SparseContainerView
private let bottomContainer: SparseContainerView
private let scrollView: ScrollView
private let scrollContentClippingView: SparseContainerView
private let scrollContentView: UIView
private let topEdgeEffectView: EdgeEffectView
private let bottomEdgeEffectView: EdgeEffectView
private let contentView: ComponentView<ChildEnvironmentType>
private var titleItemView: ComponentView<Empty>?
private var leftItemView: ComponentView<Empty>?
private var rightItemView: ComponentView<Empty>?
private var bottomItemView: ComponentView<Empty>?
private let backgroundHandleView: UIImageView
private var ignoreScrolling: Bool = false
private var isDismissingInteractively: Bool = false
private var dismissTranslation: CGFloat = 0.0
private var dismissStartTranslation: CGFloat?
private var dismissPanGesture: UIPanGestureRecognizer?
private var component: ResizableSheetComponent?
private weak var state: EmptyComponentState?
private var isUpdating: Bool = false
private var environment: ResizableSheetComponentEnvironment?
private var itemLayout: ItemLayout?
override init(frame: CGRect) {
self.dimView = UIView()
self.containerView = UIView()
self.containerView.clipsToBounds = true
self.containerView.layer.cornerRadius = 40.0
self.containerView.layer.maskedCorners = [.layerMinXMaxYCorner, .layerMaxXMaxYCorner]
self.backgroundLayer = SimpleLayer()
self.backgroundLayer.maskedCorners = [.layerMinXMinYCorner, .layerMaxXMinYCorner]
self.backgroundLayer.cornerRadius = 40.0
self.backgroundHandleView = UIImageView()
self.navigationBarContainer = SparseContainerView()
self.bottomContainer = SparseContainerView()
self.scrollView = ScrollView()
self.scrollContentClippingView = SparseContainerView()
self.scrollContentClippingView.clipsToBounds = true
self.scrollContentView = UIView()
self.topEdgeEffectView = EdgeEffectView()
self.topEdgeEffectView.clipsToBounds = true
self.topEdgeEffectView.layer.maskedCorners = [.layerMinXMinYCorner, .layerMaxXMinYCorner]
self.topEdgeEffectView.layer.cornerRadius = 40.0
self.bottomEdgeEffectView = EdgeEffectView()
self.bottomEdgeEffectView.clipsToBounds = true
self.bottomEdgeEffectView.layer.maskedCorners = [.layerMinXMaxYCorner, .layerMaxXMaxYCorner]
self.bottomEdgeEffectView.layer.cornerRadius = 40.0
self.contentView = ComponentView()
super.init(frame: frame)
self.addSubview(self.dimView)
self.addSubview(self.containerView)
self.containerView.layer.addSublayer(self.backgroundLayer)
self.scrollView.delaysContentTouches = true
self.scrollView.canCancelContentTouches = true
self.scrollView.clipsToBounds = false
self.scrollView.contentInsetAdjustmentBehavior = .never
self.scrollView.automaticallyAdjustsScrollIndicatorInsets = false
self.scrollView.showsVerticalScrollIndicator = false
self.scrollView.showsHorizontalScrollIndicator = false
self.scrollView.alwaysBounceHorizontal = false
self.scrollView.alwaysBounceVertical = true
self.scrollView.scrollsToTop = false
self.scrollView.delegate = self
self.scrollView.clipsToBounds = true
self.containerView.addSubview(self.scrollContentClippingView)
self.scrollContentClippingView.addSubview(self.scrollView)
self.scrollView.addSubview(self.scrollContentView)
self.containerView.addSubview(self.navigationBarContainer)
self.containerView.addSubview(self.bottomContainer)
self.dimView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(self.dimTapGesture(_:))))
let dismissPanGesture = UIPanGestureRecognizer(target: self, action: #selector(self.dismissPanGesture(_:)))
dismissPanGesture.maximumNumberOfTouches = 1
dismissPanGesture.delegate = self
self.addGestureRecognizer(dismissPanGesture)
self.dismissPanGesture = dismissPanGesture
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
public func scrollViewDidScroll(_ scrollView: UIScrollView) {
if !self.ignoreScrolling {
self.updateScrolling(transition: .immediate)
}
}
public override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
if !self.bounds.contains(point) {
return nil
}
if !self.backgroundLayer.frame.contains(point) {
return self.dimView
}
if let result = self.navigationBarContainer.hitTest(self.convert(point, to: self.navigationBarContainer), with: event) {
return result
}
if let result = self.bottomContainer.hitTest(self.convert(point, to: self.bottomContainer), with: event) {
return result
}
let result = super.hitTest(point, with: event)
return result
}
override public func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
if gestureRecognizer === self.dismissPanGesture {
let pan = gestureRecognizer as! UIPanGestureRecognizer
let velocity = pan.velocity(in: self)
if abs(velocity.y) <= abs(velocity.x) {
return false
}
}
return true
}
public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
if gestureRecognizer === self.dismissPanGesture {
if otherGestureRecognizer === self.scrollView.panGestureRecognizer {
return true
}
}
return false
}
@objc private func dimTapGesture(_ recognizer: UITapGestureRecognizer) {
if case .ended = recognizer.state {
self.dismissAnimated()
}
}
public func dismissAnimated() {
guard let environment = self.environment else {
return
}
self.endEditing(true)
environment.dismiss(true)
}
private func updateDismissTranslation(_ translation: CGFloat) {
self.dismissTranslation = translation
self.updateScrolling(transition: .immediate)
let maxAlphaDistance = max(1.0, self.bounds.height * 0.9)
let alpha = 1.0 - min(1.0, translation / maxAlphaDistance)
self.dimView.alpha = alpha
}
private func resetDismissTranslation(animated: Bool) {
self.dismissTranslation = 0.0
if animated {
let transition: ComponentTransition = .easeInOut(duration: 0.2)
transition.setAlpha(view: self.dimView, alpha: 1.0)
self.updateScrolling(transition: transition)
} else {
self.dimView.alpha = 1.0
self.updateScrolling(transition: .immediate)
}
}
@objc private func dismissPanGesture(_ recognizer: UIPanGestureRecognizer) {
guard let component = self.component else {
return
}
let translation = recognizer.translation(in: self)
switch recognizer.state {
case .began:
self.dismissStartTranslation = nil
case .changed:
let shouldStartDismiss = self.scrollView.contentOffset.y <= 0.0 && translation.y > 0.0
if shouldStartDismiss {
if !self.isDismissingInteractively {
self.isDismissingInteractively = true
self.dismissStartTranslation = translation.y
self.scrollView.isScrollEnabled = false
}
let start = self.dismissStartTranslation ?? translation.y
let dismissOffset = max(0.0, translation.y - start)
self.scrollView.contentOffset = .zero
self.updateDismissTranslation(dismissOffset)
} else if self.isDismissingInteractively {
let start = self.dismissStartTranslation ?? translation.y
let dismissOffset = max(0.0, translation.y - start)
self.updateDismissTranslation(dismissOffset)
}
case .ended, .cancelled:
if self.isDismissingInteractively {
let velocityY = recognizer.velocity(in: self).y
let currentOffset = self.dismissTranslation
let threshold = min(180.0, self.bounds.height * 0.25)
let shouldDismiss = currentOffset > threshold || velocityY > 1000.0
self.isDismissingInteractively = false
self.scrollView.isScrollEnabled = !component.isFullscreen
if shouldDismiss {
let animateOffset = self.bounds.height - self.backgroundLayer.frame.minY
let initialVelocity = animateOffset > 0.0 ? max(0.0, velocityY) / animateOffset : 0.0
self.animateOut(initialVelocity: initialVelocity, completion: { [weak self] in
self?.environment?.dismiss(false)
})
} else {
self.resetDismissTranslation(animated: true)
}
}
default:
break
}
}
private func updateScrolling(transition: ComponentTransition) {
guard let itemLayout = self.itemLayout, let component = self.component else {
return
}
var topOffset = -self.scrollView.bounds.minY + itemLayout.topInset
topOffset = max(0.0, topOffset)
transition.setTransform(layer: self.backgroundLayer, transform: CATransform3DMakeTranslation(0.0, topOffset + itemLayout.containerInset, 0.0))
transition.setPosition(view: self.navigationBarContainer, position: CGPoint(x: 0.0, y: topOffset + itemLayout.containerInset))
var topOffsetFraction = self.scrollView.bounds.minY / 100.0
topOffsetFraction = max(0.0, min(1.0, topOffsetFraction))
if component.isFullscreen {
topOffsetFraction = 1.0
}
let minScale: CGFloat = itemLayout.isTablet ? 1.0 : (itemLayout.containerSize.width - 6.0 * 2.0) / itemLayout.containerSize.width
let minScaledTranslation: CGFloat = itemLayout.isTablet ? 0.0 : (itemLayout.containerSize.height - itemLayout.containerSize.height * minScale) * 0.5 - 6.0
let minScaledCornerRadius: CGFloat = itemLayout.containerCornerRadius
let scale = minScale * (1.0 - topOffsetFraction) + 1.0 * topOffsetFraction
let scaledTranslation = minScaledTranslation * (1.0 - topOffsetFraction)
let scaledCornerRadius = minScaledCornerRadius * (1.0 - topOffsetFraction) + itemLayout.containerCornerRadius * topOffsetFraction
var containerTransform = CATransform3DIdentity
containerTransform = CATransform3DTranslate(containerTransform, 0.0, scaledTranslation, 0.0)
containerTransform = CATransform3DScale(containerTransform, scale, scale, scale)
containerTransform = CATransform3DTranslate(containerTransform, 0.0, self.dismissTranslation, 0.0)
transition.setTransform(view: self.containerView, transform: containerTransform)
transition.setCornerRadius(layer: self.containerView.layer, cornerRadius: scaledCornerRadius)
if component.isFullscreen {
transition.setBounds(view: self.scrollView, bounds: CGRect(origin: .zero, size: self.scrollView.bounds.size))
self.scrollView.isScrollEnabled = false
} else {
self.scrollView.isScrollEnabled = !self.isDismissingInteractively
}
var bounds = self.scrollView.bounds
bounds.size.width = itemLayout.fillingSize
self.environment?.boundsUpdated.invoke(ResizableSheetComponentEnvironment.BoundsUpdate(bounds: bounds, isInteractive: self.scrollView.isTracking))
}
private var didPlayAppearanceAnimation = false
func animateIn() {
self.didPlayAppearanceAnimation = true
self.dimView.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.3)
let animateOffset: CGFloat = self.bounds.height - self.backgroundLayer.frame.minY
self.scrollContentClippingView.layer.animatePosition(from: CGPoint(x: 0.0, y: animateOffset), to: CGPoint(), duration: 0.5, timingFunction: kCAMediaTimingFunctionSpring, additive: true)
self.backgroundLayer.animatePosition(from: CGPoint(x: 0.0, y: animateOffset), to: CGPoint(), duration: 0.5, timingFunction: kCAMediaTimingFunctionSpring, additive: true)
self.navigationBarContainer.layer.animatePosition(from: CGPoint(x: 0.0, y: animateOffset), to: CGPoint(), duration: 0.5, timingFunction: kCAMediaTimingFunctionSpring, additive: true)
self.bottomContainer.layer.animatePosition(from: CGPoint(x: 0.0, y: animateOffset), to: CGPoint(), duration: 0.5, timingFunction: kCAMediaTimingFunctionSpring, additive: true)
}
func animateOut(initialVelocity: CGFloat? = nil, completion: @escaping () -> Void) {
let animateOffset: CGFloat = self.bounds.height - self.backgroundLayer.frame.minY
self.dimView.layer.animateAlpha(from: self.dimView.alpha, to: 0.0, duration: 0.3, removeOnCompletion: false)
if let initialVelocity = initialVelocity {
let transition = ContainedViewLayoutTransition.animated(duration: 0.35, curve: .customSpring(damping: 124.0, initialVelocity: initialVelocity))
transition.updatePosition(layer: self.scrollContentClippingView.layer, position: CGPoint(x: self.scrollContentClippingView.layer.position.x, y: self.scrollContentClippingView.layer.position.y + animateOffset), completion: { _ in
completion()
})
transition.updatePosition(layer: self.backgroundLayer, position: CGPoint(x: self.backgroundLayer.position.x, y: self.backgroundLayer.position.y + animateOffset))
transition.updatePosition(layer: self.navigationBarContainer.layer, position: CGPoint(x: self.navigationBarContainer.layer.position.x, y: self.navigationBarContainer.layer.position.y + animateOffset))
transition.updatePosition(layer: self.bottomContainer.layer, position: CGPoint(x: self.bottomContainer.layer.position.x, y: self.bottomContainer.layer.position.y + animateOffset))
} else {
let duration: Double = 0.25
self.scrollContentClippingView.layer.animatePosition(from: CGPoint(), to: CGPoint(x: 0.0, y: animateOffset), duration: duration, timingFunction: CAMediaTimingFunctionName.easeInEaseOut.rawValue, removeOnCompletion: false, additive: true, completion: { _ in
completion()
})
self.backgroundLayer.animatePosition(from: CGPoint(), to: CGPoint(x: 0.0, y: animateOffset), duration: duration, timingFunction: CAMediaTimingFunctionName.easeInEaseOut.rawValue, removeOnCompletion: false, additive: true)
self.navigationBarContainer.layer.animatePosition(from: CGPoint(), to: CGPoint(x: 0.0, y: animateOffset), duration: duration, timingFunction: CAMediaTimingFunctionName.easeInEaseOut.rawValue, removeOnCompletion: false, additive: true)
self.bottomContainer.layer.animatePosition(from: CGPoint(), to: CGPoint(x: 0.0, y: animateOffset), duration: duration, timingFunction: CAMediaTimingFunctionName.easeInEaseOut.rawValue, removeOnCompletion: false, additive: true)
}
}
func update(component: ResizableSheetComponent<ChildEnvironmentType>, availableSize: CGSize, state: EmptyComponentState, environment: Environment<EnvironmentType>, transition: ComponentTransition) -> CGSize {
self.isUpdating = true
defer {
self.isUpdating = false
}
let sheetEnvironment = environment[ResizableSheetComponentEnvironment.self].value
component.animateOut.connect { [weak self] completion in
guard let self else {
return
}
self.animateOut {
completion(Void())
}
}
let resetScrolling = self.scrollView.bounds.width != availableSize.width
let fillingSize: CGFloat
if case .regular = sheetEnvironment.metrics.widthClass {
fillingSize = min(availableSize.width, 414.0) - sheetEnvironment.safeInsets.left * 2.0
} else {
fillingSize = min(availableSize.width, sheetEnvironment.deviceMetrics.screenSize.width) - sheetEnvironment.safeInsets.left * 2.0
}
let rawSideInset: CGFloat = floor((availableSize.width - fillingSize) * 0.5)
self.component = component
self.state = state
self.environment = sheetEnvironment
self.dimView.backgroundColor = UIColor(white: 0.0, alpha: 0.5)
let backgroundColor: UIColor
switch component.backgroundColor {
case let .color(color):
backgroundColor = color
self.backgroundLayer.backgroundColor = backgroundColor.cgColor
}
transition.setFrame(view: self.dimView, frame: CGRect(origin: CGPoint(), size: availableSize))
var containerSize: CGSize
if !"".isEmpty, sheetEnvironment.isCentered {
let verticalInset: CGFloat = 44.0
let maxSide = max(availableSize.width, availableSize.height)
let minSide = min(availableSize.width, availableSize.height)
containerSize = CGSize(width: min(availableSize.width - 20.0, floor(maxSide / 2.0)), height: min(availableSize.height, minSide) - verticalInset * 2.0)
if let regularMetricsSize = sheetEnvironment.regularMetricsSize {
containerSize = regularMetricsSize
}
} else {
containerSize = CGSize(width: fillingSize, height: .greatestFiniteMagnitude)
}
var containerInset: CGFloat = sheetEnvironment.statusBarHeight + 10.0
if component.isFullscreen {
containerInset = 0.0
}
let clippingY: CGFloat
self.contentView.parentState = state
let contentViewSize = self.contentView.update(
transition: transition,
component: component.content,
environment: {
environment[ChildEnvironmentType.self]
},
containerSize: containerSize
)
component.externalState?.contentHeight = contentViewSize.height
if let contentView = self.contentView.view {
if contentView.superview == nil {
self.scrollContentView.addSubview(contentView)
}
transition.setFrame(view: contentView, frame: CGRect(origin: CGPoint(x: rawSideInset, y: 0.0), size: contentViewSize))
}
let contentHeight = contentViewSize.height
let initialContentHeight = contentHeight
let edgeEffectHeight: CGFloat = 80.0
let edgeEffectFrame = CGRect(origin: CGPoint(x: rawSideInset, y: 0.0), size: CGSize(width: fillingSize, height: edgeEffectHeight))
transition.setFrame(view: self.topEdgeEffectView, frame: edgeEffectFrame)
self.topEdgeEffectView.update(content: backgroundColor, blur: true, alpha: 1.0, rect: edgeEffectFrame, edge: .top, edgeSize: edgeEffectFrame.height, transition: transition)
if self.topEdgeEffectView.superview == nil {
self.navigationBarContainer.insertSubview(self.topEdgeEffectView, at: 0)
}
self.topEdgeEffectView.isHidden = !component.hasTopEdgeEffect
if let titleItem = component.titleItem {
let titleItemView: ComponentView<Empty>
if let current = self.titleItemView {
titleItemView = current
} else {
titleItemView = ComponentView<Empty>()
self.titleItemView = titleItemView
}
let titleItemSize = titleItemView.update(
transition: transition,
component: titleItem,
environment: {},
containerSize: CGSize(width: containerSize.width - 66.0 * 2.0, height: 66.0)
)
let titleItemFrame = CGRect(origin: CGPoint(x: rawSideInset + floorToScreenPixels((containerSize.width - titleItemSize.width)) / 2.0, y: floorToScreenPixels(38.0 - titleItemSize.height * 0.5)), size: titleItemSize)
if let view = titleItemView.view {
if view.superview == nil {
self.navigationBarContainer.addSubview(view)
}
transition.setFrame(view: view, frame: titleItemFrame)
}
} else if let titleItemView = self.titleItemView {
self.titleItemView = nil
titleItemView.view?.removeFromSuperview()
}
if let leftItem = component.leftItem {
var leftItemTransition = transition
let leftItemView: ComponentView<Empty>
if let current = self.leftItemView {
leftItemView = current
} else {
leftItemTransition = .immediate
leftItemView = ComponentView<Empty>()
self.leftItemView = leftItemView
}
let leftItemSize = leftItemView.update(
transition: leftItemTransition,
component: leftItem,
environment: {},
containerSize: CGSize(width: 66.0, height: 66.0)
)
let leftItemFrame = CGRect(origin: CGPoint(x: rawSideInset + 16.0, y: 16.0), size: leftItemSize)
if let view = leftItemView.view {
if view.superview == nil {
self.navigationBarContainer.addSubview(view)
if !transition.animation.isImmediate {
view.layer.animateScale(from: 0.01, to: 1.0, duration: 0.25)
view.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.25)
}
}
leftItemTransition.setFrame(view: view, frame: leftItemFrame)
}
} else if let leftItemView = self.leftItemView {
self.leftItemView = nil
if !transition.animation.isImmediate {
leftItemView.view?.layer.animateScale(from: 1.0, to: 0.01, duration: 0.25, removeOnCompletion: false)
leftItemView.view?.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.25, removeOnCompletion: false, completion: { _ in
leftItemView.view?.removeFromSuperview()
})
} else {
leftItemView.view?.removeFromSuperview()
}
}
if let rightItem = component.rightItem {
var rightItemTransition = transition
let rightItemView: ComponentView<Empty>
if let current = self.rightItemView {
rightItemView = current
} else {
rightItemTransition = .immediate
rightItemView = ComponentView<Empty>()
self.rightItemView = rightItemView
}
let rightItemSize = rightItemView.update(
transition: rightItemTransition,
component: rightItem,
environment: {},
containerSize: CGSize(width: 66.0, height: 66.0)
)
let rightItemFrame = CGRect(origin: CGPoint(x: availableSize.width - rawSideInset - 16.0 - rightItemSize.width, y: 16.0), size: rightItemSize)
if let view = rightItemView.view {
if view.superview == nil {
self.navigationBarContainer.addSubview(view)
if !transition.animation.isImmediate {
view.layer.animateScale(from: 0.01, to: 1.0, duration: 0.25)
view.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.25)
}
}
rightItemTransition.setFrame(view: view, frame: rightItemFrame)
}
} else if let rightItemView = self.rightItemView {
self.rightItemView = nil
if !transition.animation.isImmediate {
rightItemView.view?.layer.animateScale(from: 1.0, to: 0.01, duration: 0.25, removeOnCompletion: false)
rightItemView.view?.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.25, removeOnCompletion: false, completion: { _ in
rightItemView.view?.removeFromSuperview()
})
} else {
rightItemView.view?.removeFromSuperview()
}
}
if let bottomItem = component.bottomItem {
var bottomItemTransition = transition
let bottomItemView: ComponentView<Empty>
if let current = self.bottomItemView {
bottomItemView = current
} else {
bottomItemTransition = .immediate
bottomItemView = ComponentView<Empty>()
self.bottomItemView = bottomItemView
}
let bottomInsets = ContainerViewLayout.concentricInsets(bottomInset: sheetEnvironment.safeInsets.bottom, innerDiameter: 52.0, sideInset: 30.0)
let bottomItemSize = bottomItemView.update(
transition: bottomItemTransition,
component: bottomItem,
environment: {},
containerSize: CGSize(width: containerSize.width - bottomInsets.left - bottomInsets.right, height: 52.0)
)
let bottomItemFrame = CGRect(origin: CGPoint(x: rawSideInset + floorToScreenPixels((containerSize.width - bottomItemSize.width)) / 2.0, y: availableSize.height - bottomItemSize.height - bottomInsets.bottom), size: bottomItemSize)
if let view = bottomItemView.view {
if view.superview == nil {
self.bottomContainer.addSubview(view)
if !transition.animation.isImmediate {
view.layer.animateScale(from: 0.01, to: 1.0, duration: 0.25)
view.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.25)
}
}
bottomItemTransition.setFrame(view: view, frame: bottomItemFrame)
}
} else if let bottomItemView = self.bottomItemView {
self.bottomItemView = nil
if !transition.animation.isImmediate {
bottomItemView.view?.layer.animateScale(from: 1.0, to: 0.01, duration: 0.25, removeOnCompletion: false)
bottomItemView.view?.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.25, removeOnCompletion: false, completion: { _ in
bottomItemView.view?.removeFromSuperview()
})
} else {
bottomItemView.view?.removeFromSuperview()
}
}
let bottomEdgeEffectFrame = CGRect(origin: CGPoint(x: rawSideInset, y: availableSize.height - edgeEffectHeight), size: CGSize(width: fillingSize, height: edgeEffectHeight))
transition.setFrame(view: self.bottomEdgeEffectView, frame: bottomEdgeEffectFrame)
self.bottomEdgeEffectView.update(content: .clear, blur: true, alpha: 1.0, rect: bottomEdgeEffectFrame, edge: .bottom, edgeSize: bottomEdgeEffectFrame.height, transition: transition)
if self.bottomEdgeEffectView.superview == nil {
self.bottomContainer.insertSubview(self.bottomEdgeEffectView, at: 0)
}
transition.setAlpha(view: self.bottomContainer, alpha: component.bottomItem != nil ? 1.0 : 0.0)
clippingY = availableSize.height
var topInset: CGFloat = max(0.0, availableSize.height - containerInset - initialContentHeight)
if component.isFullscreen {
topInset = 0.0
}
let scrollContentHeight = max(topInset + contentHeight + containerInset, availableSize.height - containerInset)
self.scrollContentClippingView.layer.cornerRadius = 38.0
self.itemLayout = ItemLayout(containerSize: availableSize, containerInset: containerInset, containerCornerRadius: sheetEnvironment.deviceMetrics.screenCornerRadius, bottomInset: sheetEnvironment.safeInsets.bottom, topInset: topInset, fillingSize: fillingSize, isTablet: sheetEnvironment.metrics.isTablet)
transition.setFrame(view: self.scrollContentView, frame: CGRect(origin: CGPoint(x: 0.0, y: topInset + containerInset), size: CGSize(width: availableSize.width, height: contentHeight)))
transition.setPosition(layer: self.backgroundLayer, position: CGPoint(x: availableSize.width / 2.0, y: availableSize.height / 2.0))
transition.setBounds(layer: self.backgroundLayer, bounds: CGRect(origin: CGPoint(), size: CGSize(width: fillingSize, height: availableSize.height)))
let scrollClippingFrame = CGRect(origin: CGPoint(x: 0.0, y: containerInset), size: CGSize(width: availableSize.width, height: clippingY - containerInset))
transition.setPosition(view: self.scrollContentClippingView, position: scrollClippingFrame.center)
transition.setBounds(view: self.scrollContentClippingView, bounds: CGRect(origin: CGPoint(x: scrollClippingFrame.minX, y: scrollClippingFrame.minY), size: scrollClippingFrame.size))
self.ignoreScrolling = true
transition.setFrame(view: self.scrollView, frame: CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: CGSize(width: availableSize.width, height: availableSize.height)))
let contentSize = CGSize(width: availableSize.width, height: scrollContentHeight)
if contentSize != self.scrollView.contentSize {
self.scrollView.contentSize = contentSize
}
if resetScrolling {
self.scrollView.bounds = CGRect(origin: CGPoint(x: 0.0, y: 0.0), size: availableSize)
}
self.ignoreScrolling = false
self.updateScrolling(transition: transition)
transition.setPosition(view: self.containerView, position: CGRect(origin: CGPoint(), size: availableSize).center)
transition.setBounds(view: self.containerView, bounds: CGRect(origin: CGPoint(), size: availableSize))
if sheetEnvironment.isDisplaying && !self.didPlayAppearanceAnimation {
self.animateIn()
}
return availableSize
}
}
public func makeView() -> View {
return View(frame: CGRect())
}
public func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<EnvironmentType>, transition: ComponentTransition) -> CGSize {
return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
}
}