mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2026-05-09 13:58:59 +00:00
409 lines
17 KiB
Swift
409 lines
17 KiB
Swift
import Foundation
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import UIKit
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import Display
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import TelegramPresentationData
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import ComponentFlow
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import MultilineTextComponent
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import TelegramCore
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import EmojiStatusComponent
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import AccountContext
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final class TextProcessingStyleSelectionComponent: Component {
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let context: AccountContext
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let theme: PresentationTheme
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let strings: PresentationStrings
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let styles: [TextProcessingScreen.Style]
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let selectedStyle: TelegramComposeAIMessageMode.StyleId
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let updateStyle: (TelegramComposeAIMessageMode.StyleId) -> Void
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init(
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context: AccountContext,
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theme: PresentationTheme,
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strings: PresentationStrings,
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styles: [TextProcessingScreen.Style],
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selectedStyle: TelegramComposeAIMessageMode.StyleId,
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updateStyle: @escaping (TelegramComposeAIMessageMode.StyleId) -> Void
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) {
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self.context = context
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self.theme = theme
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self.strings = strings
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self.styles = styles
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self.selectedStyle = selectedStyle
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self.updateStyle = updateStyle
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}
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static func ==(lhs: TextProcessingStyleSelectionComponent, rhs: TextProcessingStyleSelectionComponent) -> Bool {
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if lhs.theme !== rhs.theme {
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return false
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}
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if lhs.strings !== rhs.strings {
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return false
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}
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if lhs.styles != rhs.styles {
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return false
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}
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if lhs.selectedStyle != rhs.selectedStyle {
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return false
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}
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return true
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}
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private final class ScrollView: UIScrollView {
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override func touchesShouldCancel(in view: UIView) -> Bool {
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return true
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}
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}
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final class View: UIView {
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private var component: TextProcessingStyleSelectionComponent?
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private weak var state: EmptyComponentState?
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private var isUpdating: Bool = false
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private let scrollView: ScrollView
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private var itemViews: [TelegramComposeAIMessageMode.StyleId: ComponentView<Empty>] = [:]
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private let selectedBackgroundView: UIImageView
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override init(frame: CGRect) {
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self.scrollView = ScrollView()
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self.selectedBackgroundView = UIImageView()
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self.selectedBackgroundView.isHidden = true
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self.selectedBackgroundView.alpha = 0.0
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super.init(frame: frame)
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self.scrollView.delaysContentTouches = false
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self.scrollView.canCancelContentTouches = true
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self.scrollView.contentInsetAdjustmentBehavior = .never
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self.scrollView.automaticallyAdjustsScrollIndicatorInsets = false
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self.scrollView.showsVerticalScrollIndicator = false
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self.scrollView.showsHorizontalScrollIndicator = false
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self.scrollView.alwaysBounceHorizontal = false
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self.scrollView.alwaysBounceVertical = false
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self.scrollView.scrollsToTop = false
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self.scrollView.clipsToBounds = false
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self.addSubview(self.scrollView)
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self.scrollView.addSubview(self.selectedBackgroundView)
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self.scrollView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(self.onTapGesture(_:))))
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}
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required init?(coder: NSCoder) {
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preconditionFailure()
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}
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@objc private func onTapGesture(_ recognizer: UITapGestureRecognizer) {
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guard let component = self.component else {
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return
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}
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if case .ended = recognizer.state {
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for (id, itemView) in self.itemViews {
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if let itemComponentView = itemView.view {
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if itemComponentView.bounds.contains(self.scrollView.convert(recognizer.location(in: self.scrollView), to: itemComponentView)) {
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if component.selectedStyle == id {
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component.updateStyle(.neutral)
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} else {
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component.updateStyle(id)
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}
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self.scrollView.scrollRectToVisible(itemComponentView.frame.insetBy(dx: -100.0, dy: 0.0), animated: true)
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break
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}
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}
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}
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}
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}
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func update(component: TextProcessingStyleSelectionComponent, 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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let alphaTransition: ComponentTransition = transition.animation.isImmediate ? .immediate : .easeInOut(duration: 0.2)
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self.component = component
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self.state = state
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let maxItemWidth: CGFloat = 80.0
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let itemPadding: CGFloat = 0.0
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let minSlotWidth: CGFloat = 50.0
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let maxSlotWidth: CGFloat = 80.0
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// First pass: measure all items to find intrinsic sizes
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var itemSizes: [TelegramComposeAIMessageMode.StyleId: CGSize] = [:]
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for i in 0 ..< component.styles.count {
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let style = component.styles[i]
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let itemView: ComponentView<Empty>
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var itemTransition = transition
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if let current = self.itemViews[style.id] {
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itemView = current
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} else {
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itemTransition = itemTransition.withAnimation(.none)
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itemView = ComponentView()
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self.itemViews[style.id] = itemView
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}
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let measuredSize = itemView.update(
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transition: itemTransition,
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component: AnyComponent(ItemComponent(
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context: component.context,
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theme: component.theme,
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iconFileId: style.emojiFileId,
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iconFile: style.emojiFile,
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title: style.title
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)),
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environment: {},
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containerSize: CGSize(width: maxItemWidth, height: availableSize.height)
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)
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itemSizes[style.id] = measuredSize
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}
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// Compute uniform slot width from largest item
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var largestItemWidth: CGFloat = 0.0
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for (_, size) in itemSizes {
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largestItemWidth = max(largestItemWidth, size.width)
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}
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let contentBasedWidth = min(maxSlotWidth, max(minSlotWidth, largestItemWidth + itemPadding))
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let slotWidth: CGFloat
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if CGFloat(component.styles.count) * contentBasedWidth <= availableSize.width {
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slotWidth = floor(availableSize.width / CGFloat(component.styles.count))
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} else {
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var resolved: CGFloat = contentBasedWidth
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var targetVisible: CGFloat = min(7.5, floor((availableSize.width + 16.0) / (contentBasedWidth + 10.0)) + 0.5)
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while targetVisible >= 1.5 {
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let candidateWidth = floor((availableSize.width + 16.0) / targetVisible)
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if candidateWidth >= contentBasedWidth {
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resolved = candidateWidth
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break
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}
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targetVisible -= 1.0
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}
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slotWidth = resolved
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}
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let contentWidth = slotWidth * CGFloat(component.styles.count)
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self.scrollView.frame = CGRect(origin: CGPoint(), size: availableSize)
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self.scrollView.contentSize = CGSize(width: contentWidth, height: availableSize.height)
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self.scrollView.alwaysBounceHorizontal = contentWidth > availableSize.width
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// Second pass: position items centered in their slots
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var selectedItemFrame: CGRect?
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for i in 0 ..< component.styles.count {
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let style = component.styles[i]
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guard let itemView = self.itemViews[style.id],
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let naturalSize = itemSizes[style.id] else {
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continue
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}
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let slotOriginX = CGFloat(i) * slotWidth
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let itemX = slotOriginX + floor((slotWidth - naturalSize.width) * 0.5)
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let itemFrame = CGRect(origin: CGPoint(x: itemX, y: 0.0), size: naturalSize)
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if let itemComponentView = itemView.view {
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if itemComponentView.superview == nil {
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self.scrollView.addSubview(itemComponentView)
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}
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transition.setFrame(view: itemComponentView, frame: itemFrame)
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}
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if style.id == component.selectedStyle {
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selectedItemFrame = CGRect(origin: CGPoint(x: slotOriginX, y: -5.0), size: CGSize(width: slotWidth, height: availableSize.height + 5.0 + 3.0))
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}
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}
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var removedIds: [TelegramComposeAIMessageMode.StyleId] = []
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for (id, itemView) in self.itemViews {
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if !component.styles.contains(where: { $0.id == id }) {
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removedIds.append(id)
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itemView.view?.removeFromSuperview()
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}
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}
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for id in removedIds {
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self.itemViews.removeValue(forKey: id)
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}
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if self.selectedBackgroundView.image == nil {
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self.selectedBackgroundView.image = generateStretchableFilledCircleImage(diameter: 16.0 * 2.0, color: .white)?.withRenderingMode(.alwaysTemplate)
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}
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self.selectedBackgroundView.tintColor = component.theme.list.itemHighlightedBackgroundColor.withMultipliedAlpha(0.6)
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if let selectedItemFrame {
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var selectedBackgroundTransition = transition
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if self.selectedBackgroundView.isHidden {
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self.selectedBackgroundView.isHidden = false
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selectedBackgroundTransition = selectedBackgroundTransition.withAnimation(.none)
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}
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selectedBackgroundTransition.setFrame(view: self.selectedBackgroundView, frame: selectedItemFrame)
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alphaTransition.setAlpha(view: self.selectedBackgroundView, alpha: 1.0)
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} else {
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if !self.selectedBackgroundView.isHidden {
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alphaTransition.setAlpha(view: self.selectedBackgroundView, alpha: 0.0, completion: { [weak self] flag in
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guard let self, flag else {
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return
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}
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self.selectedBackgroundView.isHidden = true
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})
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}
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}
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return CGSize(width: availableSize.width, height: availableSize.height)
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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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return 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 ItemComponent: Component {
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let context: AccountContext
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let theme: PresentationTheme
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let iconFileId: Int64?
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let iconFile: TelegramMediaFile?
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let title: String
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init(
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context: AccountContext,
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theme: PresentationTheme,
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iconFileId: Int64?,
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iconFile: TelegramMediaFile?,
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title: String
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) {
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self.context = context
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self.theme = theme
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self.iconFileId = iconFileId
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self.iconFile = iconFile
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self.title = title
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}
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static func ==(lhs: ItemComponent, rhs: ItemComponent) -> Bool {
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if lhs.theme !== rhs.theme {
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return false
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}
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if lhs.iconFileId != rhs.iconFileId {
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return false
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}
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if lhs.iconFile?.fileId != rhs.iconFile?.fileId {
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return false
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}
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if lhs.title != rhs.title {
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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 imageIcon: ComponentView<Empty>?
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private let title = ComponentView<Empty>()
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private var component: ItemComponent?
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private weak var state: EmptyComponentState?
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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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let previousComponent = self.component
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self.component = component
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self.state = state
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let iconTintColor = component.theme.list.itemPrimaryTextColor
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if previousComponent?.iconFileId != component.iconFileId {
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if let imageIcon = self.imageIcon {
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self.imageIcon = nil
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imageIcon.view?.removeFromSuperview()
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}
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}
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let imageIcon: ComponentView<Empty>
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var iconTransition = transition
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if let current = self.imageIcon {
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imageIcon = current
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} else {
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iconTransition = iconTransition.withAnimation(.none)
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imageIcon = ComponentView()
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self.imageIcon = imageIcon
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}
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let iconComponent: AnyComponent<Empty>
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if let iconFileId = component.iconFileId {
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let iconSize = CGSize(width: 34.0, height: 34.0)
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let content: EmojiStatusComponent.AnimationContent
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if let file = component.iconFile {
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content = .file(file: file)
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} else {
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content = .customEmoji(fileId: iconFileId)
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}
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iconComponent = AnyComponent(EmojiStatusComponent(
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context: component.context,
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animationCache: component.context.animationCache,
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animationRenderer: component.context.animationRenderer,
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content: .animation(
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content: content,
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size: iconSize,
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placeholderColor: component.theme.list.mediaPlaceholderColor,
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themeColor: component.theme.list.itemAccentColor,
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loopMode: .count(0)
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),
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size: iconSize,
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isVisibleForAnimations: true,
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action: nil
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))
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} else {
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iconComponent = AnyComponent(MultilineTextComponent(
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text: .plain(NSAttributedString(string: "❌", font: Font.regular(25.0), textColor: .black))
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))
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}
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let iconSize = imageIcon.update(
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transition: .immediate,
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component: iconComponent,
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environment: {},
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containerSize: CGSize(width: 100.0, height: 100.0)
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)
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let titleSize = self.title.update(
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transition: .immediate,
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component: AnyComponent(MultilineTextComponent(
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text: .plain(NSAttributedString(string: component.title, font: Font.medium(10.0), textColor: iconTintColor))
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)),
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environment: {},
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containerSize: CGSize(width: availableSize.width, height: 100.0)
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)
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let contentWidth = max(iconSize.width, titleSize.width)
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let iconFrame = CGRect(origin: CGPoint(x: floor((contentWidth - iconSize.width) * 0.5), y: -3.0), size: iconSize)
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if let imageIconView = imageIcon.view {
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if imageIconView.superview == nil {
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self.addSubview(imageIconView)
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}
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iconTransition.setFrame(view: imageIconView, frame: iconFrame)
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}
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let titleFrame = CGRect(origin: CGPoint(x: floor((contentWidth - titleSize.width) * 0.5), y: availableSize.height - 5.0 - titleSize.height), size: titleSize)
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if let titleView = self.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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return CGSize(width: contentWidth, height: availableSize.height)
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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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return view.update(component: self, availableSize: availableSize, state: state, environment: environment, transition: transition)
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}
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}
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