[WIP] Channel appearance

submodules/TelegramUI/Components/PremiumLockButtonSubtitleComponent/Sources/PremiumLockButtonSubtitleComponent.swift

@@ -0,0 +1,83 @@
+import Foundation
+import UIKit
+import Display
+import ComponentFlow
+import TelegramPresentationData
+import BundleIconComponent
+import AnimatedTextComponent
+
+public final class PremiumLockButtonSubtitleComponent: CombinedComponent {
+    public let count: Int
+    public let theme: PresentationTheme
+    public let strings: PresentationStrings
+    
+    public init(count: Int, theme: PresentationTheme, strings: PresentationStrings) {
+        self.count = count
+        self.theme = theme
+        self.strings = strings
+    }
+    
+    public static func ==(lhs: PremiumLockButtonSubtitleComponent, rhs: PremiumLockButtonSubtitleComponent) -> Bool {
+        if lhs.count != rhs.count {
+            return false
+        }
+        if lhs.theme !== rhs.theme {
+            return false
+        }
+        if lhs.strings !== rhs.strings {
+            return false
+        }
+        return true
+    }
+    
+    public static var body: Body {
+        let icon = Child(BundleIconComponent.self)
+        let text = Child(AnimatedTextComponent.self)
+
+        return { context in
+            let icon = icon.update(
+                component: BundleIconComponent(
+                    name: "Chat/Input/Accessory Panels/TextLockIcon",
+                    tintColor: context.component.theme.list.itemCheckColors.foregroundColor.withMultipliedAlpha(0.7),
+                    maxSize: CGSize(width: 10.0, height: 10.0)
+                ),
+                availableSize: CGSize(width: 100.0, height: 100.0),
+                transition: context.transition
+            )
+            var textItems: [AnimatedTextComponent.Item] = []
+            
+            let levelString = context.component.strings.ChannelReactions_LevelRequiredLabel("")
+            var previousIndex = 0
+            let nsLevelString = levelString.string as NSString
+            for range in levelString.ranges.sorted(by: { $0.range.lowerBound < $1.range.lowerBound }) {
+                if range.range.lowerBound > previousIndex {
+                    textItems.append(AnimatedTextComponent.Item(id: AnyHashable(range.index), content: .text(nsLevelString.substring(with: NSRange(location: previousIndex, length: range.range.lowerBound - previousIndex)))))
+                }
+                if range.index == 0 {
+                    textItems.append(AnimatedTextComponent.Item(id: AnyHashable(range.index), content: .number(context.component.count, minDigits: 1)))
+                }
+                previousIndex = range.range.upperBound
+            }
+            if nsLevelString.length > previousIndex {
+                textItems.append(AnimatedTextComponent.Item(id: AnyHashable(100), content: .text(nsLevelString.substring(with: NSRange(location: previousIndex, length: nsLevelString.length - previousIndex)))))
+            }
+            
+            let text = text.update(
+                component: AnimatedTextComponent(font: Font.medium(11.0), color: context.component.theme.list.itemCheckColors.foregroundColor.withMultipliedAlpha(0.7), items: textItems),
+                availableSize: CGSize(width: context.availableSize.width - 20.0, height: 100.0),
+                transition: context.transition
+            )
+
+            let spacing: CGFloat = 3.0
+            let size = CGSize(width: icon.size.width + spacing + text.size.width, height: text.size.height)
+            context.add(icon
+                .position(icon.size.centered(in: CGRect(origin: CGPoint(x: 0.0, y: -UIScreenPixel), size: CGSize(width: icon.size.width, height: size.height))).center)
+            )
+            context.add(text
+                .position(text.size.centered(in: CGRect(origin: CGPoint(x: icon.size.width + spacing, y: 0.0), size: text.size)).center)
+            )
+
+            return size
+        }
+    }
+}