mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2026-02-08 20:34:39 +00:00
773 lines
27 KiB
Swift
773 lines
27 KiB
Swift
import UIKit
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import AsyncDisplayKit
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import Display
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import ComponentFlow
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import MultilineTextComponent
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let glassBackArrowImage: UIImage? = {
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let imageSize = CGSize(width: 44.0, height: 44.0)
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let topRightPoint = CGPoint(x: 24.6, y: 14.0)
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let centerPoint = CGPoint(x: 17.0, y: imageSize.height * 0.5)
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return generateImage(imageSize, rotatedContext: { size, context in
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context.clear(CGRect(origin: CGPoint(), size: size))
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context.setStrokeColor(UIColor.white.cgColor)
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context.setLineWidth(2.0)
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context.setLineCap(.round)
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context.setLineJoin(.round)
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context.move(to: topRightPoint)
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context.addLine(to: centerPoint)
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context.addLine(to: CGPoint(x: topRightPoint.x, y: size.height - topRightPoint.y))
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context.strokePath()
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})?.withRenderingMode(.alwaysTemplate)
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}()
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private final class ItemComponent: Component {
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enum Content: Equatable {
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case back
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case item(UIBarButtonItem)
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}
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let color: UIColor
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let content: Content
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init(
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color: UIColor,
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content: Content
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) {
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self.color = color
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self.content = content
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}
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static func ==(lhs: ItemComponent, rhs: ItemComponent) -> Bool {
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if lhs.color != rhs.color {
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return false
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}
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if lhs.content != rhs.content {
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return false
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}
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return true
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}
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final class View: UIView {
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private var iconView: UIImageView?
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private var title: ComponentView<Empty>?
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private var component: ItemComponent?
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private weak var state: EmptyComponentState?
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var isUpdating: Bool = false
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private var setEnabledListener: Int?
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private var setTitleListener: Int?
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override init(frame: CGRect) {
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super.init(frame: frame)
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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func update(component: ItemComponent, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
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self.isUpdating = true
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defer {
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self.isUpdating = false
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}
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if component.content != self.component?.content {
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if case let .item(item) = self.component?.content {
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if let setEnabledListener = self.setEnabledListener {
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self.setEnabledListener = nil
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item.removeSetEnabledListener(setEnabledListener)
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}
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if let setTitleListener = self.setTitleListener {
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self.setTitleListener = nil
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item.removeSetTitleListener(setTitleListener)
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}
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}
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switch component.content {
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case .back:
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break
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case let .item(item):
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self.setEnabledListener = item.addSetEnabledListener { [weak self] _ in
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guard let self else {
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return
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}
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if !self.isUpdating {
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self.state?.updated(transition: .immediate)
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}
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}
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self.setTitleListener = item.addSetTitleListener { [weak self] _ in
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guard let self else {
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return
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}
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if !self.isUpdating {
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self.state?.updated(transition: .immediate)
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}
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}
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}
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}
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self.component = component
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self.state = state
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var iconImage: UIImage?
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var titleString: String?
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switch component.content {
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case .back:
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iconImage = glassBackArrowImage
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case let .item(item):
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if item.image != nil {
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iconImage = item.image
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} else if let title = item.title {
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titleString = title
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}
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}
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var size = CGSize(width: 44.0, height: 44.0)
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if let iconImage {
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let iconView: UIImageView
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var iconTransition = transition
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if let current = self.iconView {
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iconView = current
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} else {
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iconTransition = iconTransition.withAnimation(.none)
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iconView = UIImageView()
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self.iconView = iconView
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}
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iconView.image = iconImage
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iconView.tintColor = component.color
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let iconFrame = iconImage.size.centered(in: CGRect(origin: CGPoint(), size: size))
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iconTransition.setFrame(view: iconView, frame: iconFrame)
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} else if let iconView = self.iconView {
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self.iconView = nil
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iconView.removeFromSuperview()
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}
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if let titleString {
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let titleFont: UIFont
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if case let .item(item) = component.content, case .done = item.style {
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titleFont = Font.bold(17.0)
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} else {
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titleFont = Font.regular(17.0)
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}
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let title: ComponentView<Empty>
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if let current = self.title {
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title = current
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} else {
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title = ComponentView()
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self.title = title
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}
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let titleSize = title.update(
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transition: .immediate,
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component: AnyComponent(MultilineTextComponent(
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text: .plain(NSAttributedString(string: titleString, font: titleFont, textColor: component.color))
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)),
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environment: {},
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containerSize: CGSize(width: 200.0, height: 100.0)
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)
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let titleInset: CGFloat = 6.0
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size.width = titleInset * 2.0 + titleSize.width
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let titleFrame = CGRect(origin: CGPoint(x: titleInset, y: floorToScreenPixels((size.height - titleSize.height) * 0.5)), size: titleSize)
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if let titleView = title.view {
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if titleView.superview == nil {
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self.addSubview(titleView)
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}
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titleView.frame = titleFrame
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}
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} else if let title = self.title {
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self.title = nil
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if let titleView = title.view {
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titleView.removeFromSuperview()
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}
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}
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return size
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}
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}
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func makeView() -> View {
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return View(frame: CGRect())
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}
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func update(view: View, availableSize: CGSize, state: EmptyComponentState, environment: Environment<Empty>, transition: ComponentTransition) -> CGSize {
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view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
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}
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}
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private final class NavigationButtonItemNode: ImmediateTextNode {
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private let isGlass: Bool
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private func fontForCurrentState() -> UIFont {
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return self.bold ? UIFont.boldSystemFont(ofSize: 17.0) : UIFont.systemFont(ofSize: 17.0)
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}
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private func attributesForCurrentState() -> [NSAttributedString.Key: AnyObject] {
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return [
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NSAttributedString.Key.font: self.fontForCurrentState(),
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NSAttributedString.Key.foregroundColor: self.isEnabled ? self.color : self.disabledColor
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]
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}
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private var setEnabledListener: Int?
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var item: UIBarButtonItem? {
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didSet {
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if self.item !== oldValue {
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if let oldValue = oldValue, let setEnabledListener = self.setEnabledListener {
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oldValue.removeSetEnabledListener(setEnabledListener)
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self.setEnabledListener = nil
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}
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if let item = self.item {
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self.setEnabledListener = item.addSetEnabledListener { [weak self] value in
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self?.isEnabled = value
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}
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self.accessibilityHint = item.accessibilityHint
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self.accessibilityLabel = item.accessibilityLabel
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}
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}
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}
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}
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private var _text: String?
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public var text: String {
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get {
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return _text ?? ""
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}
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set(value) {
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_text = value
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self.attributedText = NSAttributedString(string: text, attributes: self.attributesForCurrentState())
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if _image == nil {
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if self.item?.accessibilityLabel == nil {
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self.item?.accessibilityLabel = value
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}
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}
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}
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}
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private(set) var imageNode: ASImageNode?
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private var _image: UIImage?
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public var image: UIImage? {
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get {
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return _image
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} set(value) {
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_image = value
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if let _ = value {
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if self.imageNode == nil {
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let imageNode = ASImageNode()
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imageNode.displayWithoutProcessing = true
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imageNode.displaysAsynchronously = false
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self.imageNode = imageNode
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self.addSubnode(imageNode)
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}
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self.imageNode?.image = image
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} else if let imageNode = self.imageNode {
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imageNode.removeFromSupernode()
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self.imageNode = nil
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}
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self.invalidateCalculatedLayout()
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self.setNeedsLayout()
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}
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}
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public var node: ASDisplayNode? {
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didSet {
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if self.node !== oldValue {
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oldValue?.removeFromSupernode()
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if let node = self.node {
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self.addSubnode(node)
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self.invalidateCalculatedLayout()
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self.setNeedsLayout()
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self.updatePointerInteraction()
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}
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}
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}
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}
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public var color: UIColor = UIColor(rgb: 0x0088ff) {
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didSet {
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if let text = self._text {
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self.attributedText = NSAttributedString(string: text, attributes: self.attributesForCurrentState())
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}
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}
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}
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public var disabledColor: UIColor = UIColor(rgb: 0xd0d0d0) {
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didSet {
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if let text = self._text {
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self.attributedText = NSAttributedString(string: text, attributes: self.attributesForCurrentState())
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}
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}
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}
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private var _bold: Bool = false
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public var bold: Bool {
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get {
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return _bold
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}
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set(value) {
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if _bold != value {
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_bold = value
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self.attributedText = NSAttributedString(string: text, attributes: self.attributesForCurrentState())
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}
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}
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}
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private var touchCount = 0
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public var pressed: () -> () = { }
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public var highlightChanged: (Bool) -> () = { _ in }
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override public var isAccessibilityElement: Bool {
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get {
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return true
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} set(value) {
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super.isAccessibilityElement = true
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}
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}
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override public var accessibilityLabel: String? {
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get {
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if let item = self.item, let accessibilityLabel = item.accessibilityLabel {
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return accessibilityLabel
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} else {
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return self.attributedText?.string
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}
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} set(value) {
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}
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}
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override public var accessibilityHint: String? {
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get {
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if let item = self.item, let accessibilityHint = item.accessibilityHint {
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return accessibilityHint
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} else {
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return nil
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}
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} set(value) {
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}
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}
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var pointerInteraction: PointerInteraction?
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init(isGlass: Bool) {
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self.isGlass = isGlass
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super.init()
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self.isAccessibilityElement = true
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self.isUserInteractionEnabled = true
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self.isExclusiveTouch = true
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if !isGlass {
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self.hitTestSlop = UIEdgeInsets(top: -16.0, left: -10.0, bottom: -16.0, right: -10.0)
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}
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self.displaysAsynchronously = false
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self.verticalAlignment = .middle
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self.accessibilityTraits = .button
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}
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override func didLoad() {
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super.didLoad()
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self.updatePointerInteraction()
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}
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func updatePointerInteraction() {
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let pointerStyle: PointerStyle
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if self.node != nil {
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pointerStyle = .lift
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} else {
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pointerStyle = .insetRectangle(-8.0, 2.0)
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}
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self.pointerInteraction = PointerInteraction(node: self, style: pointerStyle)
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}
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override func updateLayout(_ constrainedSize: CGSize) -> CGSize {
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var superSize = super.updateLayout(constrainedSize)
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if let node = self.node {
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let nodeSize = node.measure(constrainedSize)
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let size = CGSize(width: max(nodeSize.width, superSize.width), height: max(nodeSize.height, superSize.height))
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node.frame = CGRect(origin: CGPoint(), size: nodeSize)
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return size
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} else if let imageNode = self.imageNode {
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let nodeSize = imageNode.image?.size ?? CGSize()
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let size = CGSize(width: max(nodeSize.width, superSize.width), height: max(44.0, max(nodeSize.height, superSize.height)))
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let imageFrame = CGRect(origin: CGPoint(x: floorToScreenPixels((size.width - nodeSize.width) / 2.0), y: floorToScreenPixels((size.height - nodeSize.height) / 2.0)), size: nodeSize)
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imageNode.frame = imageFrame
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return size
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} else {
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superSize.height = max(44.0, superSize.height)
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}
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return superSize
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}
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private func touchInsideApparentBounds(_ touch: UITouch) -> Bool {
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var apparentBounds = self.bounds
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let hitTestSlop = self.hitTestSlop
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apparentBounds.origin.x += hitTestSlop.left
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apparentBounds.size.width += -hitTestSlop.left - hitTestSlop.right
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apparentBounds.origin.y += hitTestSlop.top
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apparentBounds.size.height += -hitTestSlop.top - hitTestSlop.bottom
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return apparentBounds.contains(touch.location(in: self.view))
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}
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public override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
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super.touchesBegan(touches, with: event)
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self.touchCount += touches.count
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self.updateHighlightedState(true, animated: false)
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}
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public override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
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super.touchesMoved(touches, with: event)
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}
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public override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
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super.touchesEnded(touches, with: event)
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self.updateHighlightedState(false, animated: false)
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let previousTouchCount = self.touchCount
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self.touchCount = max(0, self.touchCount - touches.count)
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var touchInside = true
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if let touch = touches.first, !self.isGlass {
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touchInside = self.touchInsideApparentBounds(touch)
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}
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if previousTouchCount != 0 && self.touchCount == 0 && self.isEnabled && touchInside {
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self.pressed()
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}
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}
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public override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
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if let node = self.node as? HighlightableButtonNode {
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let result = node.view.hitTest(self.view.convert(point, to: node.view), with: event)
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return result
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} else {
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let previousAlpha = self.alpha
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self.alpha = 1.0
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let result = super.hitTest(point, with: event)
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self.alpha = previousAlpha
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return result
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}
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}
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public override func touchesCancelled(_ touches: Set<UITouch>?, with event: UIEvent?) {
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super.touchesCancelled(touches, with: event)
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self.touchCount = max(0, self.touchCount - (touches?.count ?? 0))
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self.updateHighlightedState(false, animated: false)
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}
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private var _highlighted = false
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private func updateHighlightedState(_ highlighted: Bool, animated: Bool) {
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if _highlighted != highlighted {
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_highlighted = highlighted
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var shouldChangeHighlight = true
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if let node = self.node as? NavigationButtonCustomDisplayNode {
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shouldChangeHighlight = node.isHighlightable
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}
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if shouldChangeHighlight {
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if self.alpha > 0.0 {
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self.alpha = !self.isEnabled ? 1.0 : (highlighted ? 0.4 : 1.0)
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}
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self.highlightChanged(highlighted)
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}
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}
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}
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public var isEnabled: Bool = true {
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didSet {
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if self.isEnabled != oldValue {
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self.attributedText = NSAttributedString(string: self.text, attributes: self.attributesForCurrentState())
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if let constrainedSize = self.constrainedSize {
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let _ = self.updateLayout(constrainedSize)
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}
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}
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}
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}
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}
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public final class NavigationButtonNodeImpl: ContextControllerSourceNode, NavigationButtonNode {
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private let isGlass: Bool
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private var isBack: Bool = false
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private var nodes: [NavigationButtonItemNode] = []
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private var disappearingNodes: [(frame: CGRect, size: CGSize, node: NavigationButtonItemNode)] = []
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public var singleCustomNode: ASDisplayNode? {
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for node in self.nodes {
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return node.node
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}
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return nil
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}
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public var mainContentNode: ASDisplayNode? {
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return self.nodes.first
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}
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public var pressed: (Int) -> () = { _ in }
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public var highlightChanged: (Int, Bool) -> () = { _, _ in }
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public var color: UIColor = UIColor(rgb: 0x0088ff) {
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didSet {
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if !self.color.isEqual(oldValue) {
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for node in self.nodes {
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node.color = self.color
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}
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}
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}
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}
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public var disabledColor: UIColor = UIColor(rgb: 0xd0d0d0) {
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didSet {
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if !self.disabledColor.isEqual(oldValue) {
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for node in self.nodes {
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node.disabledColor = self.disabledColor
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}
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}
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}
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}
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override public var accessibilityElements: [Any]? {
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get {
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return self.nodes
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} set(value) {
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}
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}
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public init(isGlass: Bool) {
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self.isGlass = isGlass
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super.init()
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self.isAccessibilityElement = false
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self.isGestureEnabled = false
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}
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|
|
|
public var manualText: String {
|
|
return self.nodes.first?.text ?? ""
|
|
}
|
|
|
|
public var manualAlpha: CGFloat = 1.0 {
|
|
didSet {
|
|
for node in self.nodes {
|
|
node.alpha = self.manualAlpha
|
|
}
|
|
}
|
|
}
|
|
|
|
public var contentsColor: UIColor?
|
|
|
|
public func updateManualAlpha(alpha: CGFloat, transition: ContainedViewLayoutTransition) {
|
|
for node in self.nodes {
|
|
transition.updateAlpha(node: node, alpha: alpha)
|
|
}
|
|
}
|
|
|
|
public func updateManualText(_ text: String, isBack: Bool = true) {
|
|
self.isBack = isBack
|
|
|
|
let node: NavigationButtonItemNode
|
|
if self.nodes.count > 0 {
|
|
node = self.nodes[0]
|
|
} else {
|
|
node = NavigationButtonItemNode(isGlass: self.isGlass)
|
|
node.color = self.color
|
|
node.layer.layerTintColor = self.contentsColor?.cgColor
|
|
node.highlightChanged = { [weak node, weak self] value in
|
|
if let strongSelf = self, let node = node {
|
|
if let index = strongSelf.nodes.firstIndex(where: { $0 === node }) {
|
|
strongSelf.highlightChanged(index, value)
|
|
}
|
|
}
|
|
}
|
|
node.pressed = { [weak self, weak node] in
|
|
if let strongSelf = self, let node = node {
|
|
if let index = strongSelf.nodes.firstIndex(where: { $0 === node }) {
|
|
strongSelf.pressed(index)
|
|
}
|
|
}
|
|
}
|
|
self.nodes.append(node)
|
|
self.addSubnode(node)
|
|
}
|
|
node.alpha = self.manualAlpha
|
|
node.item = nil
|
|
node.image = nil
|
|
node.text = text
|
|
node.bold = false
|
|
node.isEnabled = true
|
|
node.node = nil
|
|
if !self.isGlass {
|
|
node.hitTestSlop = isBack ? UIEdgeInsets(top: 0.0, left: -20.0, bottom: 0.0, right: 0.0) : UIEdgeInsets()
|
|
}
|
|
|
|
if 1 < self.nodes.count {
|
|
for i in 1 ..< self.nodes.count {
|
|
self.nodes[i].removeFromSupernode()
|
|
}
|
|
self.nodes.removeSubrange(1...)
|
|
}
|
|
}
|
|
|
|
public func updateItems(_ items: [UIBarButtonItem], animated: Bool) {
|
|
for i in 0 ..< items.count {
|
|
let node: NavigationButtonItemNode
|
|
if self.nodes.count > i {
|
|
node = self.nodes[i]
|
|
} else {
|
|
node = NavigationButtonItemNode(isGlass: self.isGlass)
|
|
node.color = self.color
|
|
node.layer.layerTintColor = self.contentsColor?.cgColor
|
|
node.highlightChanged = { [weak node, weak self] value in
|
|
if let strongSelf = self, let node = node {
|
|
if let index = strongSelf.nodes.firstIndex(where: { $0 === node }) {
|
|
strongSelf.highlightChanged(index, value)
|
|
}
|
|
}
|
|
}
|
|
node.pressed = { [weak self, weak node] in
|
|
if let strongSelf = self, let node = node {
|
|
if let index = strongSelf.nodes.firstIndex(where: { $0 === node }) {
|
|
strongSelf.pressed(index)
|
|
}
|
|
}
|
|
}
|
|
self.nodes.append(node)
|
|
self.addSubnode(node)
|
|
}
|
|
node.alpha = self.manualAlpha
|
|
node.item = items[i]
|
|
node.image = items[i].image
|
|
node.text = items[i].title ?? ""
|
|
node.bold = items[i].style == .done
|
|
node.isEnabled = items[i].isEnabled
|
|
node.node = items[i].customDisplayNode
|
|
|
|
if animated {
|
|
node.layer.animateAlpha(from: 0.0, to: self.manualAlpha, duration: 0.16)
|
|
node.layer.animateScale(from: 0.001, to: 1.0, duration: 0.4, timingFunction: kCAMediaTimingFunctionSpring)
|
|
}
|
|
}
|
|
if items.count < self.nodes.count {
|
|
for i in items.count ..< self.nodes.count {
|
|
let itemNode = self.nodes[i]
|
|
if animated {
|
|
disappearingNodes.append((itemNode.frame, self.bounds.size, itemNode))
|
|
itemNode.layer.animateAlpha(from: self.manualAlpha, to: 0.0, duration: 0.2, removeOnCompletion: false, completion: { [weak self, weak itemNode] _ in
|
|
guard let itemNode else {
|
|
return
|
|
}
|
|
|
|
itemNode.removeFromSupernode()
|
|
|
|
guard let self else {
|
|
return
|
|
}
|
|
if let index = self.disappearingNodes.firstIndex(where: { $0.node === itemNode }) {
|
|
self.disappearingNodes.remove(at: index)
|
|
}
|
|
})
|
|
itemNode.layer.animateScale(from: 1.0, to: 0.001, duration: 0.4, timingFunction: kCAMediaTimingFunctionSpring, removeOnCompletion: false)
|
|
} else {
|
|
itemNode.removeFromSupernode()
|
|
}
|
|
}
|
|
self.nodes.removeSubrange(items.count...)
|
|
}
|
|
}
|
|
|
|
public func updateLayout(constrainedSize: CGSize, isLandscape: Bool, isLeftAligned: Bool) -> CGSize {
|
|
var nodeOrigin = CGPoint(x: 0.0, y: 0.0)
|
|
var totalHeight: CGFloat = 0.0
|
|
for i in 0 ..< self.nodes.count {
|
|
if i != 0 && !self.isGlass {
|
|
nodeOrigin.x += 15.0
|
|
}
|
|
|
|
let node = self.nodes[i]
|
|
|
|
var nodeSize = node.updateLayout(constrainedSize)
|
|
var nodeInset: CGFloat = 0.0
|
|
if self.isGlass {
|
|
if node.image == nil && node.node == nil {
|
|
nodeInset += 10.0
|
|
}
|
|
if nodeSize.width + nodeInset * 2.0 < 44.0 {
|
|
nodeInset = floorToScreenPixels((44.0 - nodeSize.width) * 0.5)
|
|
}
|
|
}
|
|
|
|
nodeSize.width = ceil(nodeSize.width)
|
|
nodeSize.height = ceil(nodeSize.height)
|
|
totalHeight = max(totalHeight, nodeSize.height)
|
|
node.frame = CGRect(origin: CGPoint(x: nodeOrigin.x + nodeInset, y: floor((totalHeight - nodeSize.height) / 2.0)), size: nodeSize)
|
|
nodeOrigin.x += nodeInset + node.bounds.width + nodeInset
|
|
if isLandscape && !self.isGlass {
|
|
nodeOrigin.x += 16.0
|
|
}
|
|
|
|
if !self.isGlass && node.node == nil && node.imageNode != nil && i == self.nodes.count - 1 {
|
|
nodeOrigin.x -= 5.0
|
|
}
|
|
}
|
|
|
|
if !isLeftAligned {
|
|
for disappearingNode in self.disappearingNodes {
|
|
disappearingNode.node.frame = disappearingNode.frame.offsetBy(dx: nodeOrigin.x - disappearingNode.size.width, dy: (totalHeight - disappearingNode.size.height) * 0.5)
|
|
}
|
|
}
|
|
|
|
return CGSize(width: nodeOrigin.x, height: totalHeight)
|
|
}
|
|
|
|
override public func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
|
|
if self.nodes.count == 1 {
|
|
if self.isGlass && self.isBack {
|
|
if self.bounds.contains(point) {
|
|
return self.nodes[0].view
|
|
}
|
|
}
|
|
if self.bounds.contains(point) {
|
|
return self.nodes[0].view.hitTest(self.view.convert(point, to: self.nodes[0].view), with: event)
|
|
} else {
|
|
return nil
|
|
}
|
|
} else {
|
|
return super.hitTest(point, with: event)
|
|
}
|
|
}
|
|
|
|
var isEmpty: Bool {
|
|
if self.isBack {
|
|
return false
|
|
}
|
|
for node in self.nodes {
|
|
if node.bounds.width != 0.0 {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
}
|