Temp

submodules/TelegramUI/Sources/ListMessageDateHeader.swift

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+import Foundation
+import UIKit
+import Display
+import AsyncDisplayKit
+import TelegramPresentationData
+import TelegramUIPreferences
+import TelegramStringFormatting
+
+private let timezoneOffset: Int32 = {
+    let nowTimestamp = Int32(CFAbsoluteTimeGetCurrent() + NSTimeIntervalSince1970)
+    var now: time_t = time_t(nowTimestamp)
+    var timeinfoNow: tm = tm()
+    localtime_r(&now, &timeinfoNow)
+    return Int32(timeinfoNow.tm_gmtoff)
+}()
+
+func listMessageDateHeaderId(timestamp: Int32) -> Int64 {
+    var time: time_t = time_t(timestamp + timezoneOffset)
+    var timeinfo: tm = tm()
+    localtime_r(&time, &timeinfo)
+    
+    let roundedTimestamp = timeinfo.tm_year * 100 + timeinfo.tm_mon
+    
+    return Int64(roundedTimestamp)
+}
+
+func listMessageDateHeaderInfo(timestamp: Int32) -> (year: Int32, month: Int32) {
+    var time: time_t = time_t(timestamp + timezoneOffset)
+    var timeinfo: tm = tm()
+    localtime_r(&time, &timeinfo)
+    
+    return (timeinfo.tm_year, timeinfo.tm_mon)
+}
+
+final class ListMessageDateHeader: ListViewItemHeader {
+    private let timestamp: Int32
+    private let roundedTimestamp: Int32
+    private let month: Int32
+    private let year: Int32
+    
+    let id: Int64
+    let theme: PresentationTheme
+    let strings: PresentationStrings
+    let fontSize: PresentationFontSize
+    
+    init(timestamp: Int32, theme: PresentationTheme, strings: PresentationStrings, fontSize: PresentationFontSize) {
+        self.timestamp = timestamp
+        self.theme = theme
+        self.strings = strings
+        self.fontSize = fontSize
+        
+        var time: time_t = time_t(timestamp + timezoneOffset)
+        var timeinfo: tm = tm()
+        localtime_r(&time, &timeinfo)
+        
+        self.roundedTimestamp = timeinfo.tm_year * 100 + timeinfo.tm_mon
+        self.month = timeinfo.tm_mon
+        self.year = timeinfo.tm_year
+        
+        self.id = Int64(self.roundedTimestamp)
+    }
+    
+    let stickDirection: ListViewItemHeaderStickDirection = .top
+    
+    let height: CGFloat = 36.0
+    
+    func node() -> ListViewItemHeaderNode {
+        return ListMessageDateHeaderNode(theme: self.theme, strings: self.strings, fontSize: self.fontSize, roundedTimestamp: self.roundedTimestamp, month: self.month, year: self.year)
+    }
+    
+    func updateNode(_ node: ListViewItemHeaderNode, previous: ListViewItemHeader?, next: ListViewItemHeader?) {
+    }
+}
+
+final class ListMessageDateHeaderNode: ListViewItemHeaderNode {
+    var theme: PresentationTheme
+    var strings: PresentationStrings
+    var fontSize: PresentationFontSize
+    let titleNode: ASTextNode
+    let backgroundNode: ASDisplayNode
+    
+    init(theme: PresentationTheme, strings: PresentationStrings, fontSize: PresentationFontSize, roundedTimestamp: Int32, month: Int32, year: Int32) {
+        self.theme = theme
+        self.strings = strings
+        self.fontSize = fontSize
+        
+        self.backgroundNode = ASDisplayNode()
+        self.backgroundNode.isLayerBacked = true
+        self.backgroundNode.backgroundColor = theme.list.plainBackgroundColor.withAlphaComponent(0.9)
+        
+        self.titleNode = ASTextNode()
+        self.titleNode.isUserInteractionEnabled = false
+        
+        super.init()
+        
+        let dateText = stringForMonth(strings: strings, month: month, ofYear: year)
+        
+        let sectionTitleFont = Font.regular(floor(fontSize.baseDisplaySize * 14.0 / 17.0))
+        
+        self.addSubnode(self.backgroundNode)
+        self.addSubnode(self.titleNode)
+        self.titleNode.attributedText = NSAttributedString(string: dateText, font: sectionTitleFont, textColor: theme.list.itemPrimaryTextColor)
+        self.titleNode.maximumNumberOfLines = 1
+        self.titleNode.truncationMode = .byTruncatingTail
+    }
+    
+    func updateThemeAndStrings(theme: PresentationTheme, strings: PresentationStrings) {
+        self.theme = theme
+        if let attributedString = self.titleNode.attributedText?.mutableCopy() as? NSMutableAttributedString {
+            attributedString.addAttribute(NSAttributedString.Key.foregroundColor, value: theme.list.itemPrimaryTextColor, range: NSMakeRange(0, attributedString.length))
+            self.titleNode.attributedText = attributedString
+        }
+        
+        self.strings = strings
+        
+        self.backgroundNode.backgroundColor = theme.list.plainBackgroundColor.withAlphaComponent(0.9)
+        self.setNeedsLayout()
+    }
+    
+    override func updateLayout(size: CGSize, leftInset: CGFloat, rightInset: CGFloat) {
+        let titleSize = self.titleNode.measure(CGSize(width: size.width - leftInset - rightInset - 24.0, height: CGFloat.greatestFiniteMagnitude))
+        self.titleNode.frame = CGRect(origin: CGPoint(x: leftInset + 12.0, y: floor((size.height - titleSize.height) / 2.0)), size: titleSize)
+        self.backgroundNode.frame = CGRect(origin: CGPoint(), size: size)
+    }
+}