function fieldSymbolInput:new(x, y, lengthField, cursorSymbol, customInitTextOnField, canInputOnlyNumbers)
    local obj = {}
    obj.onFocusedStatus = false
    obj.debugStatus = false
    obj.x = x
    obj.y = y
    obj.lengthField = lengthField
    obj.cursorSymbol = cursorSymbol
    obj.savedText = ""
    obj.xPosC = obj.x + 1
    obj.signalHandler = signalHandler
    obj.canFocused = false
    obj.canInputOnlyNumbers = canInputOnlyNumbers == nil and false or canInputOnlyNumbers

    obj.backgroundColor = 0xb4b4b4

    obj.customInitTextOnField = tostring(customInitTextOnField)

    local privateVariable = {}

    privateVariable.xPosC = obj.x + 1
    privateVariable.xWithLengthField = obj.x + obj.lengthField

    function obj:changeOnFocusedStatus(status)
        self.onFocusedStatus = status
    end

    function obj:dropFocused(signal)
        if signal[3] >= 2 + privateVariable.xWithLengthField and signal[3] <= 4 + privateVariable.xWithLengthField then
            self.onFocusedStatus = false
        end
    end

    function obj:drawCrossButton()
        -----сивол X на кнопке стирания-------- 0x343a40
        gpuSet(self.x + self.lengthField + 2, self.y, " Г— ", 0x343a40, 0x0d6efd)
        -----сивол X на кнопке стирания-------
    end
    function obj:drawInit()
        --------------
        gpuFill(self.x, self.y, 2 + self.lengthField, 1, " ", self.backgroundColor)
        gpuSet(1 + self.x, self.y, self.customInitTextOnField, self.backgroundColor, 0x212529)
        ---------------0x212529
        self:drawCrossButton()
    end

    obj:drawInit()


    function obj:customMatch(symbol)
        if not self.canInputOnlyNumbers then
            local result = symbol:match("^[A-Za-z0-9Рђ-РЇ-Р°-СЏ -_#&]")
            return result == nil and (symbol == "]" and symbol or (symbol == "[" and symbol or (symbol == "-" and symbol or nil))) or result
        end
        if tonumber(self.savedText == "" and 0 or self.savedText) < 100 then
            return symbol:match("^[0-9]")
        end
        return nil
    end

    function obj:blinkCrossButton()
        gpuSet((3) + (self.lengthField) + self.x,  self.y, "Г—", 0x343a40, 0x00b600)
        sleep(0.001)
        gpuSet((3) + (self.lengthField) + self.x,  self.y, "Г—", 0x343a40, 0x0d6efd)
    end

    function obj:drawCursor()
        gpu.setBackground(self.backgroundColor)
        gpu.setForeground(0xffc107)
        gpu.set(self.xPosC, self.y, self.cursorSymbol)
    end

    function obj:blinkCursor()
        gpu.setBackground(self.backgroundColor)
        gpu.setForeground(0x00b600)
        gpu.set(self.xPosC, self.y, self.cursorSymbol)
        sleep(0.1)
        gpu.setForeground(0xffc107)
        gpu.set(self.xPosC, self.y, self.cursorSymbol)
    end

    function obj:reDrawText(text)
        gpuFill(self.x, self.y, 2 + self.lengthField, 1, " ", self.backgroundColor)
        gpuSet(self.x + 1, self.y, tostring(text), self.backgroundColor, 0x212529)
    end

    function obj:modifySavedTextAndPreCalcCursor(text)
        self.savedText = text
        self.xPosC = self.x + unicode.len(self.savedText) + 1
        self:reDrawText(self.savedText)
    end

    function obj:reDrawTextWithCursor(text)
        gpuFill(self.x, self.y, 2 + self.lengthField, 1, " ", self.backgroundColor)
        gpuSet(self.x + 1, self.y, tostring(text), self.backgroundColor, 0x212529)
        self:drawCursor()
    end

    function obj:reDrawTextWithCursorAndCross(text)
        self:reDrawTextWithCursor(text)
        self:drawCrossButton()
    end

    function obj:lenSavedText()
        return unicode.len(self.savedText)
    end

    function obj:eventTrap(signal)
        if signal[1] == "touch" then
            if signal[3] >= 2 + privateVariable.xWithLengthField and signal[3] <= 4 + privateVariable.xWithLengthField then --прожал X, отчистить
                obj:blinkCrossButton()
                self.xPosC = self.x + 1
                self.savedText = ""
                self:reDrawTextWithCursor("")
                obj:debug(signal)
                -- return "erase"
            end
            if signal[3] <= self.lengthField and signal[3] >= 4 + privateVariable.xWithLengthField or signal[4] ~= self.y then
                return "focusedDroped"
            end
        elseif signal[1] == "key_up" and signal[1] ~= "key_down" then
            local char, sChar = signal[3], signal[4]
            local TextLen = self:lenSavedText()
            local symbol = unicode.char(char)
            if signal[3] == 127 or signal[4] == 211 then --прожал delete, отчистить
                self:blinkCrossButton()
                self.xPosC = self.x + 1
                self.savedText = ""
                self:reDrawTextWithCursor("")
                obj:debug(signal)
                -- return "erase"
            end
            if self:customMatch(symbol) ~= nil and TextLen ~= self.lengthField then
                if self.xPosC == 1 + self.x then -- пишу символ в самом конце строки
                    local afterCur = unicode.sub(self.savedText, 1 + self.x - self.xPosC, TextLen)
                    self.xPosC = self.xPosC + 1
                    self.savedText = symbol .. afterCur
                    self:reDrawTextWithCursor(self.savedText)
                    return true

                elseif self.xPosC ~= self.x and 1 + self.xPosC >= 1 + self.x + unicode.len(self.savedText) then -- Проверка, находится ли курсор в начале строки и символ текст
                    self.xPosC = self.xPosC + 1
                    self.savedText = self.savedText .. unicode.char(signal[3])
                    self:reDrawTextWithCursor(self.savedText)
                    return true

                elseif self.xPosC >= 1 + self.x and self.xPosC <= 1 + self.x + TextLen then -- пишу символ в центре строки
                    self.savedText = unicode.sub(self.savedText, 1, self.xPosC - 1 - self.x) .. symbol .. unicode.sub(self.savedText, self.xPosC - self.x, TextLen)
                    self.xPosC = self.xPosC + 1
                    self:reDrawTextWithCursor(self.savedText)
                    return true
                end
            end
            if signal[1] == "key_up" and signal[4] == 28 then
                return "focusedDroped"
            end
        elseif signal[1] ~= "key_up" and signal[1] == "key_down" then
            if signal[4] == 205 and self.xPosC <= self:lenSavedText() + self.x and self.xPosC ~= 1 + self.x + self.lengthField then -- 205 стрелка в право
                self.xPosC = self.xPosC + 1 -- Стрелка в право, курсор двигается в право.
                self:reDrawTextWithCursor(self.savedText)
            elseif signal[4] == 203 and self.xPosC >= 2 + self.x then -- 203 стрелка в лево
                self.xPosC = self.xPosC - 1 -- Стрелка в лево, курсор двигается в лево.
                self:reDrawTextWithCursor(self.savedText)
            end
            if signal[3] and signal[4] == 14 then --Стирал очка
                if self.xPosC >= 1 + self.x then
                    local TextLen = self:lenSavedText()
                    if self.xPosC == 1 + self.x + TextLen and TextLen > 0 then
                        if self.xPosC ~= 1 + self.x then self.xPosC = self.xPosC - 1 end
                            self.savedText = unicode.sub(self.savedText, 1, TextLen - 1)
                            self:reDrawTextWithCursor(self.savedText)
                            if self.savedText == "" then return "erase" end
                            return true

                        elseif self.xPosC >= 3 + self.x and self.xPosC <= self.x + TextLen then
                            self.savedText = unicode.sub(self.savedText, 1, self.xPosC - 2 - self.x)..unicode.sub(self.savedText, self.xPosC - self.x, TextLen)
                            self.xPosC = self.xPosC - 1
                            self:reDrawTextWithCursor(self.savedText)
                            if self.savedText == "" then return "erase" end
                            return true

                        elseif self.xPosC == 2 + self.x then
                            self.savedText = unicode.sub(self.savedText, 2, TextLen)
                            self.xPosC = self.xPosC - 1
                            self:reDrawTextWithCursor(self.savedText)
                            return true
                    end
                    return false
                end
            end
        elseif signal[1] == "clipboard" then
            local stringGeted = tostring(signal[3])
            local stringToPaste = ""
            if unicode.len(stringGeted) > self.lengthField then stringToPaste = unicode.sub(stringGeted, 1, self.lengthField) else stringToPaste = stringGeted end
            self.savedText = stringToPaste
            self:modifySavedTextAndPreCalcCursor(self.savedText)
        end
    end

    function obj:canFocusedToggle(bool)
        self.canFocused = bool
    end

    function obj:isFocused(signal)
        if signal and signal[1] == "touch" and signal[3] >= self.x and signal[3] <= self.x + self.lengthField and signal[4] == self.y then
            return true
        end
        return false
    end

    function obj:isDropFocused(signal)
        if self:eventTrap(signal) == "focusedDroped" then
            return true
        end
        return false
    end
    function obj:onFocused(_SIGNAL, errorText)
        if self:isFocused(_SIGNAL) then
            if self.canFocused then
                self.backgroundColor = 0xf8f9fa
                self:reDrawTextWithCursor(self.savedText)
                local blinkCursorCount = 0
                while true do
                    computer.pushSignal("fakeEvent")
                    blinkCursorCount = blinkCursorCount + 1
                    if blinkCursorCount == 50 then self:blinkCursor() blinkCursorCount = 0 end
                    if self:isDropFocused(self:signalHandler()) then
                        self.backgroundColor = 0xb4b4b4
                        self:reDrawText(tostring(self.savedText))
                        return "focusedDroped"
                    end
                end
            else
                self.backgroundColor = 0xf8f9fa
                self:reDrawText(tostring(errorText)) --"НЕ ВЫБРАЛ ГРУППУ!"
                computer.beep(600, 0.1)
                self.backgroundColor = 0xb4b4b4
                self:reDrawText(tostring(self.customInitTextOnField))
                return
            end
        end
    end


    function obj:debug(signal)
        -- if self.debugStatus then
        --     local x = 41
        --     gpuFill(abs(x- 1), 1, 50, 8, " ", 0xf8f9fa)
        --     gpuSet(x, 2, tostring(signal[3]), color.white, color.yellow)
        --     gpuSet(x, 3, tostring(signal[4]), color.white, color.yellow)
        --     gpuSet(x, 4, "xPosC: " .. tostring(self.xPosC), color.background, color.yellow)
        --     gpuSet(x, 5, "TextLen: " .. tostring(unicode.len(self.savedText)), color.background, color.red)
        --     gpuSet(x, 6, "savedText: " .. self.savedText, color.background, color.red)
        -- end
    end

    setmetatable(obj, self)
    self.__index = self
    return obj
end