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/*
* Copyright (C) 2012-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include "pvr/channels/PVRChannelNumber.h"
#include "threads/CriticalSection.h"
#include "threads/Timer.h"
#include "utils/EventStream.h"
#include <string>
#include <vector>
namespace PVR
{
struct PVRChannelNumberInputChangedEvent
{
explicit PVRChannelNumberInputChangedEvent(const std::string& input) : m_input(input) {}
virtual ~PVRChannelNumberInputChangedEvent() = default;
std::string m_input;
};
class CPVRChannelNumberInputHandler : private ITimerCallback
{
public:
static const int CHANNEL_NUMBER_INPUT_MAX_DIGITS = 5;
CPVRChannelNumberInputHandler();
/*!
* @brief ctor.
* @param iDelay timer delay in millisecods.
* @param iMaxDigits maximum number of display digits to use.
*/
CPVRChannelNumberInputHandler(int iDelay, int iMaxDigits = CHANNEL_NUMBER_INPUT_MAX_DIGITS);
~CPVRChannelNumberInputHandler() override = default;
/*!
* @brief Get the events available for CEventStream.
* @return The events.
*/
CEventStream<PVRChannelNumberInputChangedEvent>& Events() { return m_events; }
// implementation of ITimerCallback
void OnTimeout() override;
/*!
* @brief Get the currently available channel numbers.
* @param channelNumbers The list to fill with the channel numbers.
*/
virtual void GetChannelNumbers(std::vector<std::string>& channelNumbers) = 0;
/*!
* @brief This method gets called after the channel number input timer has expired.
*/
virtual void OnInputDone() = 0;
/*!
* @brief Appends a channel number character.
* @param cCharacter The character to append. value must be CPVRChannelNumber::SEPARATOR ('.') or any char in the range from '0' to '9'.
*/
virtual void AppendChannelNumberCharacter(char cCharacter);
/*!
* @brief Check whether a channel number was entered.
* @return True if the handler currently holds a channel number, false otherwise.
*/
bool HasChannelNumber() const;
/*!
* @brief Get the currently entered channel number as a formatted string.
* @return the channel number string.
*/
std::string GetChannelNumberLabel() const;
/*!
* @brief If a number was entered, execute the associated action.
* @return True, if the action was executed, false otherwise.
*/
bool CheckInputAndExecuteAction();
protected:
/*!
* @brief Get the currently entered channel number.
* @return the channel number.
*/
CPVRChannelNumber GetChannelNumber() const;
/*!
* @brief Get the currently entered number of digits.
* @return the number of digits.
*/
size_t GetCurrentDigitCount() const { return m_inputBuffer.size(); }
mutable CCriticalSection m_mutex;
private:
void ExecuteAction();
void SetLabel(const std::string& label);
std::vector<std::string> m_sortedChannelNumbers;
const int m_iDelay;
const int m_iMaxDigits;
std::string m_inputBuffer;
std::string m_label;
CTimer m_timer;
CEventSource<PVRChannelNumberInputChangedEvent> m_events;
};
} // namespace PVR
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