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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.
*/
#include "PVRChannelNumberInputHandler.h"
#include "ServiceBroker.h"
#include "settings/AdvancedSettings.h"
#include "settings/SettingsComponent.h"
#include "utils/StringUtils.h"
#include <algorithm>
#include <cstdlib>
#include <mutex>
#include <string>
using namespace PVR;
using namespace std::chrono_literals;
CPVRChannelNumberInputHandler::CPVRChannelNumberInputHandler()
: CPVRChannelNumberInputHandler(CServiceBroker::GetSettingsComponent()
->GetAdvancedSettings()
->m_iPVRNumericChannelSwitchTimeout,
CHANNEL_NUMBER_INPUT_MAX_DIGITS)
{
}
CPVRChannelNumberInputHandler::CPVRChannelNumberInputHandler(
int iDelay, int iMaxDigits /* = CHANNEL_NUMBER_INPUT_MAX_DIGITS */)
: m_iDelay(iDelay), m_iMaxDigits(iMaxDigits), m_timer(this)
{
}
void CPVRChannelNumberInputHandler::OnTimeout()
{
if (m_inputBuffer.empty())
{
std::unique_lock<CCriticalSection> lock(m_mutex);
SetLabel("");
}
else
{
// call the overridden worker method
OnInputDone();
std::unique_lock<CCriticalSection> lock(m_mutex);
// erase input buffer immediately , but...
m_inputBuffer.erase();
// ... display the label for another .5 secs if we stopped the timer before regular timeout.
if (m_timer.IsRunning())
SetLabel("");
else
m_timer.Start(500ms);
}
}
void CPVRChannelNumberInputHandler::ExecuteAction()
{
m_timer.Stop(true /* wait until worker thread ended */);
OnTimeout();
}
bool CPVRChannelNumberInputHandler::CheckInputAndExecuteAction()
{
const CPVRChannelNumber channelNumber = GetChannelNumber();
if (channelNumber.IsValid())
{
// we have a valid channel number; execute the associated action now.
ExecuteAction();
return true;
}
return false;
}
void CPVRChannelNumberInputHandler::AppendChannelNumberCharacter(char cCharacter)
{
if (cCharacter != CPVRChannelNumber::SEPARATOR && (cCharacter < '0' || cCharacter > '9'))
return;
std::unique_lock<CCriticalSection> lock(m_mutex);
if (cCharacter == CPVRChannelNumber::SEPARATOR)
{
// no leading separator
if (m_inputBuffer.empty())
return;
// max one separator
if (m_inputBuffer.find(CPVRChannelNumber::SEPARATOR) != std::string::npos)
return;
}
if (m_inputBuffer.size() == static_cast<size_t>(m_iMaxDigits))
{
m_inputBuffer.erase(m_inputBuffer.begin());
SetLabel(m_inputBuffer);
}
else if (m_inputBuffer.empty())
{
m_sortedChannelNumbers.clear();
GetChannelNumbers(m_sortedChannelNumbers);
std::sort(m_sortedChannelNumbers.begin(), m_sortedChannelNumbers.end());
}
m_inputBuffer.append(&cCharacter, 1);
SetLabel(m_inputBuffer);
for (auto it = m_sortedChannelNumbers.begin(); it != m_sortedChannelNumbers.end();)
{
const std::string channel = *it;
++it;
if (StringUtils::StartsWith(channel, m_inputBuffer))
{
if (it != m_sortedChannelNumbers.end() && StringUtils::StartsWith(*it, m_inputBuffer))
{
// there are alternative numbers; wait for more input
break;
}
// no alternatives; complete the number and fire immediately
m_inputBuffer = channel;
SetLabel(m_inputBuffer);
ExecuteAction();
return;
}
}
if (!m_timer.IsRunning())
m_timer.Start(std::chrono::milliseconds(m_iDelay));
else
m_timer.Restart();
}
CPVRChannelNumber CPVRChannelNumberInputHandler::GetChannelNumber() const
{
int iChannelNumber = 0;
int iSubChannelNumber = 0;
std::unique_lock<CCriticalSection> lock(m_mutex);
size_t pos = m_inputBuffer.find(CPVRChannelNumber::SEPARATOR);
if (pos != std::string::npos)
{
// main + sub
if (pos != 0)
{
iChannelNumber = std::atoi(m_inputBuffer.substr(0, pos).c_str());
if (pos != m_inputBuffer.size() - 1)
iSubChannelNumber = std::atoi(m_inputBuffer.substr(pos + 1).c_str());
}
}
else
{
// only main
iChannelNumber = std::atoi(m_inputBuffer.c_str());
}
return CPVRChannelNumber(iChannelNumber, iSubChannelNumber);
}
bool CPVRChannelNumberInputHandler::HasChannelNumber() const
{
return !m_inputBuffer.empty();
}
std::string CPVRChannelNumberInputHandler::GetChannelNumberLabel() const
{
std::unique_lock<CCriticalSection> lock(m_mutex);
return m_label;
}
void CPVRChannelNumberInputHandler::SetLabel(const std::string& label)
{
std::unique_lock<CCriticalSection> lock(m_mutex);
if (label != m_label)
{
m_label = label;
// inform subscribers
m_events.Publish(PVRChannelNumberInputChangedEvent(m_label));
}
}
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