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294
submodules/TelegramUI/Sources/ChatInterfaceInputContexts.swift
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294
submodules/TelegramUI/Sources/ChatInterfaceInputContexts.swift
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import Foundation
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import UIKit
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import TelegramCore
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import SyncCore
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import Postbox
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import Display
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import AccountContext
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import Emoji
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struct PossibleContextQueryTypes: OptionSet {
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var rawValue: Int32
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init() {
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self.rawValue = 0
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}
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init(rawValue: Int32) {
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self.rawValue = rawValue
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}
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static let emoji = PossibleContextQueryTypes(rawValue: (1 << 0))
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static let hashtag = PossibleContextQueryTypes(rawValue: (1 << 1))
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static let mention = PossibleContextQueryTypes(rawValue: (1 << 2))
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static let command = PossibleContextQueryTypes(rawValue: (1 << 3))
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static let contextRequest = PossibleContextQueryTypes(rawValue: (1 << 4))
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static let emojiSearch = PossibleContextQueryTypes(rawValue: (1 << 5))
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}
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private func makeScalar(_ c: Character) -> Character {
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return c
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}
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private let spaceScalar = " " as UnicodeScalar
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private let newlineScalar = "\n" as UnicodeScalar
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private let hashScalar = "#" as UnicodeScalar
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private let atScalar = "@" as UnicodeScalar
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private let slashScalar = "/" as UnicodeScalar
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private let colonScalar = ":" as UnicodeScalar
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private let alphanumerics = CharacterSet.alphanumerics
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private func scalarCanPrependQueryControl(_ c: UnicodeScalar?) -> Bool {
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if let c = c {
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if c == " " || c == "\n" || c == "." || c == "," {
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return true
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}
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return false
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} else {
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return true
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}
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}
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func textInputStateContextQueryRangeAndType(_ inputState: ChatTextInputState) -> [(NSRange, PossibleContextQueryTypes, NSRange?)] {
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if inputState.selectionRange.count != 0 {
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return []
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}
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let inputText = inputState.inputText
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let inputString: NSString = inputText.string as NSString
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var results: [(NSRange, PossibleContextQueryTypes, NSRange?)] = []
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let inputLength = inputString.length
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if inputLength != 0 {
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if inputString.hasPrefix("@") && inputLength != 1 {
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let startIndex = 1
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var index = startIndex
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var contextAddressRange: NSRange?
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while true {
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if index == inputLength {
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break
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}
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if let c = UnicodeScalar(inputString.character(at: index)) {
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if c == " " {
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if index != startIndex {
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contextAddressRange = NSRange(location: startIndex, length: index - startIndex)
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index += 1
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}
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break
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} else {
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if !((c >= "a" && c <= "z") || (c >= "A" && c <= "Z") || (c >= "0" && c <= "9") || c == "_") {
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break
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}
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}
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if index == inputLength {
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break
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} else {
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index += 1
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}
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} else {
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index += 1
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}
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}
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if let contextAddressRange = contextAddressRange {
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results.append((contextAddressRange, [.contextRequest], NSRange(location: index, length: inputLength - index)))
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}
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}
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let maxIndex = min(inputState.selectionRange.lowerBound, inputLength)
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if maxIndex == 0 {
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return results
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}
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var index = maxIndex - 1
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var possibleQueryRange: NSRange?
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let string = (inputString as String)
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let trimmedString = string.trimmingTrailingSpaces()
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if string.count < 3, trimmedString.isSingleEmoji {
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return [(NSRange(location: 0, length: inputString.length - (string.count - trimmedString.count)), [.emoji], nil)]
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}
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var possibleTypes = PossibleContextQueryTypes([.command, .mention, .hashtag, .emojiSearch])
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var definedType = false
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while true {
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var previousC: UnicodeScalar?
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if index != 0 {
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previousC = UnicodeScalar(inputString.character(at: index - 1))
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}
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if let c = UnicodeScalar(inputString.character(at: index)) {
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if c == spaceScalar || c == newlineScalar {
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possibleTypes = []
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} else if c == hashScalar {
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if scalarCanPrependQueryControl(previousC) {
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possibleTypes = possibleTypes.intersection([.hashtag])
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definedType = true
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index += 1
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possibleQueryRange = NSRange(location: index, length: maxIndex - index)
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}
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break
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} else if c == atScalar {
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if scalarCanPrependQueryControl(previousC) {
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possibleTypes = possibleTypes.intersection([.mention])
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definedType = true
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index += 1
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possibleQueryRange = NSRange(location: index, length: maxIndex - index)
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}
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break
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} else if c == slashScalar {
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if scalarCanPrependQueryControl(previousC) {
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possibleTypes = possibleTypes.intersection([.command])
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definedType = true
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index += 1
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possibleQueryRange = NSRange(location: index, length: maxIndex - index)
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}
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break
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} else if c == colonScalar {
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if scalarCanPrependQueryControl(previousC) {
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possibleTypes = possibleTypes.intersection([.emojiSearch])
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definedType = true
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index += 1
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possibleQueryRange = NSRange(location: index, length: maxIndex - index)
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}
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break
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}
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}
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if index == 0 {
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break
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} else {
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index -= 1
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possibleQueryRange = NSRange(location: index, length: maxIndex - index)
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}
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}
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if let possibleQueryRange = possibleQueryRange, definedType && !possibleTypes.isEmpty {
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results.append((possibleQueryRange, possibleTypes, nil))
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}
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}
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return results
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}
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func inputContextQueriesForChatPresentationIntefaceState(_ chatPresentationInterfaceState: ChatPresentationInterfaceState) -> [ChatPresentationInputQuery] {
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let inputState = chatPresentationInterfaceState.interfaceState.effectiveInputState
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let inputString: NSString = inputState.inputText.string as NSString
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var result: [ChatPresentationInputQuery] = []
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for (possibleQueryRange, possibleTypes, additionalStringRange) in textInputStateContextQueryRangeAndType(inputState) {
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let query = inputString.substring(with: possibleQueryRange)
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if possibleTypes == [.emoji] {
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result.append(.emoji(query.basicEmoji.0))
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} else if possibleTypes == [.hashtag] {
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result.append(.hashtag(query))
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} else if possibleTypes == [.mention] {
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var types: ChatInputQueryMentionTypes = [.members]
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if possibleQueryRange.lowerBound == 1 {
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types.insert(.contextBots)
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}
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result.append(.mention(query: query, types: types))
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} else if possibleTypes == [.command] {
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result.append(.command(query))
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} else if possibleTypes == [.contextRequest], let additionalStringRange = additionalStringRange {
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let additionalString = inputString.substring(with: additionalStringRange)
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result.append(.contextRequest(addressName: query, query: additionalString))
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} else if possibleTypes == [.emojiSearch], !query.isEmpty, let inputLanguage = chatPresentationInterfaceState.interfaceState.inputLanguage {
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result.append(.emojiSearch(query: query, languageCode: inputLanguage, range: possibleQueryRange))
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}
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}
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return result
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}
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func inputTextPanelStateForChatPresentationInterfaceState(_ chatPresentationInterfaceState: ChatPresentationInterfaceState, context: AccountContext) -> ChatTextInputPanelState {
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var contextPlaceholder: NSAttributedString?
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loop: for (_, result) in chatPresentationInterfaceState.inputQueryResults {
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if case let .contextRequestResult(peer, _) = result, let botUser = peer as? TelegramUser, let botInfo = botUser.botInfo, let inlinePlaceholder = botInfo.inlinePlaceholder {
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let inputQueries = inputContextQueriesForChatPresentationIntefaceState(chatPresentationInterfaceState)
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for inputQuery in inputQueries {
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if case let .contextRequest(addressName, query) = inputQuery, query.isEmpty {
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let baseFontSize: CGFloat = max(17.0, chatPresentationInterfaceState.fontSize.baseDisplaySize)
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let string = NSMutableAttributedString()
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string.append(NSAttributedString(string: "@" + addressName, font: Font.regular(baseFontSize), textColor: UIColor.clear))
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string.append(NSAttributedString(string: " " + inlinePlaceholder, font: Font.regular(baseFontSize), textColor: chatPresentationInterfaceState.theme.chat.inputPanel.inputPlaceholderColor))
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contextPlaceholder = string
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}
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}
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break loop
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}
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}
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var accessoryItems: [ChatTextInputAccessoryItem] = []
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if let peer = chatPresentationInterfaceState.renderedPeer?.peer as? TelegramSecretChat {
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var extendedSearchLayout = false
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loop: for (_, result) in chatPresentationInterfaceState.inputQueryResults {
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if case let .contextRequestResult(peer, _) = result, peer != nil {
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extendedSearchLayout = true
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break loop
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}
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}
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if !extendedSearchLayout {
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accessoryItems.append(.messageAutoremoveTimeout(peer.messageAutoremoveTimeout))
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}
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}
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switch chatPresentationInterfaceState.inputMode {
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case .media:
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accessoryItems.append(.keyboard)
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return ChatTextInputPanelState(accessoryItems: accessoryItems, contextPlaceholder: contextPlaceholder, mediaRecordingState: chatPresentationInterfaceState.inputTextPanelState.mediaRecordingState)
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case .inputButtons:
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return ChatTextInputPanelState(accessoryItems: [.keyboard], contextPlaceholder: contextPlaceholder, mediaRecordingState: chatPresentationInterfaceState.inputTextPanelState.mediaRecordingState)
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case .none, .text:
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if let _ = chatPresentationInterfaceState.interfaceState.editMessage {
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return ChatTextInputPanelState(accessoryItems: [], contextPlaceholder: contextPlaceholder, mediaRecordingState: chatPresentationInterfaceState.inputTextPanelState.mediaRecordingState)
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} else {
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var accessoryItems: [ChatTextInputAccessoryItem] = []
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if let peer = chatPresentationInterfaceState.renderedPeer?.peer as? TelegramSecretChat {
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var extendedSearchLayout = false
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loop: for (_, result) in chatPresentationInterfaceState.inputQueryResults {
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if case let .contextRequestResult(peer, _) = result, peer != nil {
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extendedSearchLayout = true
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break loop
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}
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}
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if !extendedSearchLayout {
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accessoryItems.append(.messageAutoremoveTimeout(peer.messageAutoremoveTimeout))
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}
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}
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if chatPresentationInterfaceState.interfaceState.composeInputState.inputText.length == 0 && chatPresentationInterfaceState.interfaceState.forwardMessageIds == nil {
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if chatPresentationInterfaceState.hasScheduledMessages {
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accessoryItems.append(.scheduledMessages)
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}
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var stickersEnabled = true
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if let peer = chatPresentationInterfaceState.renderedPeer?.peer as? TelegramChannel {
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if case .broadcast = peer.info, canSendMessagesToPeer(peer) {
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accessoryItems.append(.silentPost(chatPresentationInterfaceState.interfaceState.silentPosting))
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}
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if peer.hasBannedPermission(.banSendStickers) != nil {
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stickersEnabled = false
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}
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} else if let peer = chatPresentationInterfaceState.renderedPeer?.peer as? TelegramGroup {
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if peer.hasBannedPermission(.banSendStickers) {
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stickersEnabled = false
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}
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}
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if let peer = chatPresentationInterfaceState.renderedPeer?.peer as? TelegramUser, let _ = peer.botInfo {
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accessoryItems.append(.commands)
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} else if chatPresentationInterfaceState.hasBots {
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accessoryItems.append(.commands)
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}
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accessoryItems.append(.stickers(stickersEnabled))
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if let message = chatPresentationInterfaceState.keyboardButtonsMessage, let _ = message.visibleButtonKeyboardMarkup {
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accessoryItems.append(.inputButtons)
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}
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}
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return ChatTextInputPanelState(accessoryItems: accessoryItems, contextPlaceholder: contextPlaceholder, mediaRecordingState: chatPresentationInterfaceState.inputTextPanelState.mediaRecordingState)
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}
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}
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}
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