import Foundation
import UIKit
import Display
import AsyncDisplayKit
import SwiftSignalKit
import TelegramPresentationData
import ItemListUI
import PresentationDataUtils
import ActivityIndicator
final class CalculatingCacheSizeItem: ListViewItem, ItemListItem {
let theme: PresentationTheme
let title: String
let sectionId: ItemListSectionId
let style: ItemListStyle
init(theme: PresentationTheme, title: String, sectionId: ItemListSectionId, style: ItemListStyle) {
self.theme = theme
self.title = title
self.sectionId = sectionId
self.style = style
}
func nodeConfiguredForParams(async: @escaping (@escaping () -> Void) -> Void, params: ListViewItemLayoutParams, synchronousLoads: Bool, previousItem: ListViewItem?, nextItem: ListViewItem?, completion: @escaping (ListViewItemNode, @escaping () -> (Signal<Void, NoError>?, (ListViewItemApply) -> Void)) -> Void) {
async {
let node = CalculatingCacheSizeItemNode()
let (layout, apply) = node.asyncLayout()(self, params, itemListNeighbors(item: self, topItem: previousItem as? ItemListItem, bottomItem: nextItem as? ItemListItem))
node.contentSize = layout.contentSize
node.insets = layout.insets
Queue.mainQueue().async {
completion(node, {
return (nil, { _ in apply() })
})
}
}
}
func updateNode(async: @escaping (@escaping () -> Void) -> Void, node: @escaping () -> ListViewItemNode, params: ListViewItemLayoutParams, previousItem: ListViewItem?, nextItem: ListViewItem?, animation: ListViewItemUpdateAnimation, completion: @escaping (ListViewItemNodeLayout, @escaping (ListViewItemApply) -> Void) -> Void) {
Queue.mainQueue().async {
if let nodeValue = node() as? CalculatingCacheSizeItemNode {
let makeLayout = nodeValue.asyncLayout()
async {
let (layout, apply) = makeLayout(self, params, itemListNeighbors(item: self, topItem: previousItem as? ItemListItem, bottomItem: nextItem as? ItemListItem))
Queue.mainQueue().async {
completion(layout, { _ in
apply()
})
}
}
}
}
}
}
private let titleFont = Font.regular(14.0)
private final class CalculatingCacheSizeItemNode: ListViewItemNode {
private let backgroundNode: ASDisplayNode
private let topStripeNode: ASDisplayNode
private let bottomStripeNode: ASDisplayNode
private let maskNode: ASImageNode
private var activityIndicator: ActivityIndicator?
private let titleNode: TextNode
private var item: CalculatingCacheSizeItem?
var tag: Any? {
return self.item?.tag
}
init() {
self.backgroundNode = ASDisplayNode()
self.backgroundNode.isLayerBacked = true
self.backgroundNode.backgroundColor = .white
self.topStripeNode = ASDisplayNode()
self.topStripeNode.isLayerBacked = true
self.bottomStripeNode = ASDisplayNode()
self.bottomStripeNode.isLayerBacked = true
self.maskNode = ASImageNode()
self.titleNode = TextNode()
self.titleNode.isUserInteractionEnabled = false
self.titleNode.contentMode = .left
self.titleNode.contentsScale = UIScreen.main.scale
super.init(layerBacked: false, dynamicBounce: false)
self.addSubnode(self.titleNode)
}
func asyncLayout() -> (_ item: CalculatingCacheSizeItem, _ params: ListViewItemLayoutParams, _ neighbors: ItemListNeighbors) -> (ListViewItemNodeLayout, () -> Void) {
let makeTitleLayout = TextNode.asyncLayout(self.titleNode)
let currentItem = self.item
return { item, params, neighbors in
var updatedTheme: PresentationTheme?
if currentItem?.theme !== item.theme {
updatedTheme = item.theme
}
let (titleLayout, titleApply) = makeTitleLayout(TextNodeLayoutArguments(attributedString: NSAttributedString(string: item.title, font: titleFont, textColor: item.theme.list.itemSecondaryTextColor), backgroundColor: nil, maximumNumberOfLines: 0, truncationType: .end, constrainedSize: CGSize(width: params.width - params.leftInset - params.rightInset - 20.0, height: CGFloat.greatestFiniteMagnitude), alignment: .center, cutout: nil, insets: UIEdgeInsets()))
let contentSize: CGSize
let insets: UIEdgeInsets
let separatorHeight = UIScreenPixel
let itemBackgroundColor: UIColor
let itemSeparatorColor: UIColor
switch item.style {
case .plain:
itemBackgroundColor = item.theme.list.plainBackgroundColor
itemSeparatorColor = item.theme.list.itemPlainSeparatorColor
contentSize = CGSize(width: params.width, height: titleLayout.size.height + 22.0 + 24.0)
insets = itemListNeighborsPlainInsets(neighbors)
case .blocks:
itemBackgroundColor = item.theme.list.itemBlocksBackgroundColor
itemSeparatorColor = item.theme.list.itemBlocksSeparatorColor
contentSize = CGSize(width: params.width, height: titleLayout.size.height + 22.0 + 24.0)
insets = itemListNeighborsGroupedInsets(neighbors)
}
let layout = ListViewItemNodeLayout(contentSize: contentSize, insets: insets)
return (layout, { [weak self] in
if let strongSelf = self {
strongSelf.item = item
let activityIndicator: ActivityIndicator
if let current = strongSelf.activityIndicator {
activityIndicator = current
} else {
activityIndicator = ActivityIndicator(type: .custom(item.theme.list.itemAccentColor, 20.0, 2.0, false), speed: ActivityIndicatorSpeed.slow)
strongSelf.activityIndicator = activityIndicator
strongSelf.addSubnode(activityIndicator)
}
if let _ = updatedTheme {
strongSelf.topStripeNode.backgroundColor = itemSeparatorColor
strongSelf.bottomStripeNode.backgroundColor = itemSeparatorColor
strongSelf.backgroundNode.backgroundColor = itemBackgroundColor
activityIndicator.type = .custom(item.theme.list.itemAccentColor, 20.0, 2.0, false)
}
let _ = titleApply()
let leftInset: CGFloat
switch item.style {
case .plain:
leftInset = 35.0 + params.leftInset
if strongSelf.backgroundNode.supernode != nil {
strongSelf.backgroundNode.removeFromSupernode()
}
if strongSelf.topStripeNode.supernode != nil {
strongSelf.topStripeNode.removeFromSupernode()
}
if strongSelf.bottomStripeNode.supernode == nil {
strongSelf.insertSubnode(strongSelf.bottomStripeNode, at: 0)
}
strongSelf.bottomStripeNode.frame = CGRect(origin: CGPoint(x: leftInset, y: contentSize.height - separatorHeight), size: CGSize(width: params.width - leftInset, height: separatorHeight))
case .blocks:
leftInset = 16.0 + params.leftInset
if strongSelf.backgroundNode.supernode == nil {
strongSelf.insertSubnode(strongSelf.backgroundNode, at: 0)
}
if strongSelf.topStripeNode.supernode == nil {
strongSelf.insertSubnode(strongSelf.topStripeNode, at: 1)
}
if strongSelf.bottomStripeNode.supernode == nil {
strongSelf.insertSubnode(strongSelf.bottomStripeNode, at: 2)
}
if strongSelf.maskNode.supernode == nil {
strongSelf.insertSubnode(strongSelf.maskNode, at: 3)
}
let hasCorners = itemListHasRoundedBlockLayout(params)
var hasTopCorners = false
var hasBottomCorners = false
switch neighbors.top {
case .sameSection(false):
strongSelf.topStripeNode.isHidden = true
default:
hasTopCorners = true
strongSelf.topStripeNode.isHidden = hasCorners
}
let bottomStripeInset: CGFloat
let bottomStripeOffset: CGFloat
switch neighbors.bottom {
case .sameSection(false):
bottomStripeInset = 16.0 + params.leftInset
bottomStripeOffset = -separatorHeight
default:
bottomStripeInset = 0.0
bottomStripeOffset = 0.0
hasBottomCorners = true
strongSelf.bottomStripeNode.isHidden = hasCorners
}
strongSelf.maskNode.image = hasCorners ? PresentationResourcesItemList.cornersImage(item.theme, top: hasTopCorners, bottom: hasBottomCorners) : nil
strongSelf.backgroundNode.frame = CGRect(origin: CGPoint(x: 0.0, y: -min(insets.top, separatorHeight)), size: CGSize(width: params.width, height: contentSize.height + min(insets.top, separatorHeight) + min(insets.bottom, separatorHeight)))
strongSelf.maskNode.frame = strongSelf.backgroundNode.frame.insetBy(dx: params.leftInset, dy: 0.0)
strongSelf.topStripeNode.frame = CGRect(origin: CGPoint(x: 0.0, y: -min(insets.top, separatorHeight)), size: CGSize(width: params.width, height: separatorHeight))
strongSelf.bottomStripeNode.frame = CGRect(origin: CGPoint(x: bottomStripeInset, y: contentSize.height + bottomStripeOffset), size: CGSize(width: params.width - bottomStripeInset, height: separatorHeight))
}
strongSelf.titleNode.frame = CGRect(origin: CGPoint(x: params.leftInset + floor((params.width - params.leftInset - params.rightInset - titleLayout.size.width) / 2.0), y: 11.0 + 24.0), size: titleLayout.size)
activityIndicator.frame = CGRect(origin: CGPoint(x: floor((params.width - 20.0) / 2.0), y: 8.0), size: CGSize(width: 20.0, height: 20.0))
}
})
}
}
override func animateInsertion(_ currentTimestamp: Double, duration: Double, short: Bool) {
self.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.4)
}
override func animateRemoved(_ currentTimestamp: Double, duration: Double) {
self.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.15, removeOnCompletion: false)
}
}