import Foundation import UIKit import AsyncDisplayKit import Display import TelegramPresentationData import ItemListUI import PresentationDataUtils import AnimatedStickerNode import TelegramAnimatedStickerNode import AccountContext final class InviteRequestsEmptyStateItem: ItemListControllerEmptyStateItem { let context: AccountContext let theme: PresentationTheme let strings: PresentationStrings let isGroup: Bool init(context: AccountContext, theme: PresentationTheme, strings: PresentationStrings, isGroup: Bool) { self.context = context self.theme = theme self.strings = strings self.isGroup = isGroup } func isEqual(to: ItemListControllerEmptyStateItem) -> Bool { if let item = to as? InviteRequestsEmptyStateItem { return self.theme === item.theme && self.strings === item.strings && self.isGroup == item.isGroup } else { return false } } func node(current: ItemListControllerEmptyStateItemNode?) -> ItemListControllerEmptyStateItemNode { if let current = current as? InviteRequestsEmptyStateItemNode { current.item = self return current } else { return InviteRequestsEmptyStateItemNode(item: self) } } } final class InviteRequestsEmptyStateItemNode: ItemListControllerEmptyStateItemNode { private var animationNode: AnimatedStickerNode private let titleNode: ASTextNode private let textNode: ASTextNode private var validLayout: (ContainerViewLayout, CGFloat)? var item: InviteRequestsEmptyStateItem { didSet { self.updateThemeAndStrings(theme: self.item.theme, strings: self.item.strings) if let (layout, navigationHeight) = self.validLayout { self.updateLayout(layout: layout, navigationBarHeight: navigationHeight, transition: .immediate) } } } init(item: InviteRequestsEmptyStateItem) { self.item = item self.animationNode = DefaultAnimatedStickerNodeImpl() self.animationNode.setup(source: AnimatedStickerNodeLocalFileSource(name: "TwoFactorSetupRememberSuccess"), width: 192, height: 192, playbackMode: .once, mode: .direct(cachePathPrefix: nil)) self.animationNode.visibility = true self.titleNode = ASTextNode() self.titleNode.isUserInteractionEnabled = false self.textNode = ASTextNode() self.textNode.isUserInteractionEnabled = false super.init() self.isUserInteractionEnabled = false self.addSubnode(self.animationNode) self.addSubnode(self.titleNode) self.addSubnode(self.textNode) self.updateThemeAndStrings(theme: self.item.theme, strings: self.item.strings) } private func updateThemeAndStrings(theme: PresentationTheme, strings: PresentationStrings) { self.titleNode.attributedText = NSAttributedString(string: strings.MemberRequests_NoRequests, font: Font.bold(17.0), textColor: theme.list.freeTextColor, paragraphAlignment: .center) self.textNode.attributedText = NSAttributedString(string: self.item.isGroup ? strings.MemberRequests_NoRequestsDescriptionGroup : strings.MemberRequests_NoRequestsDescriptionChannel, font: Font.regular(14.0), textColor: theme.list.freeTextColor, paragraphAlignment: .center) } override func updateLayout(layout: ContainerViewLayout, navigationBarHeight: CGFloat, transition: ContainedViewLayoutTransition) { self.validLayout = (layout, navigationBarHeight) var insets = layout.insets(options: []) insets.top += navigationBarHeight let imageSpacing: CGFloat = 10.0 let textSpacing: CGFloat = 8.0 let imageSize = CGSize(width: 112.0, height: 112.0) let imageHeight = layout.size.width < layout.size.height ? imageSize.height + imageSpacing : 0.0 self.animationNode.frame = CGRect(origin: CGPoint(x: floor((layout.size.width - imageSize.width) / 2.0), y: -10.0), size: imageSize) self.animationNode.updateLayout(size: imageSize) let titleSize = self.titleNode.measure(CGSize(width: layout.size.width - layout.safeInsets.left - layout.safeInsets.right - layout.intrinsicInsets.left - layout.intrinsicInsets.right - 50.0, height: max(1.0, layout.size.height - insets.top - insets.bottom))) let textSize = self.textNode.measure(CGSize(width: layout.size.width - layout.safeInsets.left - layout.safeInsets.right - layout.intrinsicInsets.left - layout.intrinsicInsets.right - 50.0, height: max(1.0, layout.size.height - insets.top - insets.bottom))) let totalHeight = imageHeight + titleSize.height + textSpacing + textSize.height let topOffset = insets.top + floor((layout.size.height - insets.top - insets.bottom - totalHeight) / 2.0) transition.updateAlpha(node: self.animationNode, alpha: imageHeight > 0.0 ? 1.0 : 0.0) transition.updateFrame(node: self.animationNode, frame: CGRect(origin: CGPoint(x: floor((layout.size.width - imageSize.width) / 2.0), y: topOffset), size: imageSize)) transition.updateFrame(node: self.titleNode, frame: CGRect(origin: CGPoint(x: layout.safeInsets.left + layout.intrinsicInsets.left + floor((layout.size.width - titleSize.width - layout.safeInsets.left - layout.safeInsets.right - layout.intrinsicInsets.left - layout.intrinsicInsets.right) / 2.0), y: topOffset + imageHeight), size: titleSize)) transition.updateFrame(node: self.textNode, frame: CGRect(origin: CGPoint(x: layout.safeInsets.left + layout.intrinsicInsets.left + floor((layout.size.width - textSize.width - layout.safeInsets.left - layout.safeInsets.right - layout.intrinsicInsets.left - layout.intrinsicInsets.right) / 2.0), y: self.titleNode.frame.maxY + textSpacing), size: textSize)) } }