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Console.cpp: Fix console history crashes and inconsistent behavior

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This commit is contained in:
Lion Kortlepel 2021-01-02 01:00:35 +01:00
parent 5fb7c459c6
commit e2611e13e0
1 changed files with 30 additions and 14 deletions
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44
src/Console.cpp
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@ -18,6 +18,7 @@ typedef unsigned long DWORD, *PDWORD, *LPDWORD;
#include "Logger.h"
#include <array>
#include <cstring>
#include <deque>
#include <iostream>
#include <mutex>
#include <string>
@ -40,9 +41,6 @@ void HandleInput(const std::string& cmd) {
}
void ProcessOut() {
static size_t len = 2;
if (QConsoleOut.empty() && len == CInputBuff.length())
return;
printf("%c[2K\r", 27);
for (const std::string& msg : QConsoleOut)
if (!msg.empty())
@ -51,7 +49,6 @@ void ProcessOut() {
QConsoleOut.clear();
MLock.unlock();
std::cout << "> " << CInputBuff << std::flush;
len = CInputBuff.length();
}
void ConsoleOut(const std::string& msg) {
@ -125,12 +122,34 @@ void SetupConsole() {
}
static std::vector<std::string> ConsoleHistory {};
// buffer used to revert back to what we were writing when we go all the way forward in history
static std::string LastInputBuffer {};
static size_t ConsoleHistoryReadIndex { 0 };
static inline void ConsoleHistoryAdd(const std::string& cmd) {
LastInputBuffer.clear();
ConsoleHistory.push_back(cmd);
ConsoleHistoryReadIndex = ConsoleHistory.size();
}
static inline void ConsoleHistoryEnsureBounds() {
if (ConsoleHistoryReadIndex >= ConsoleHistory.size()) {
ConsoleHistoryReadIndex = ConsoleHistory.size() - 1;
}
}
static inline void ConsoleHistoryGoBack() {
if (ConsoleHistoryReadIndex > 0) {
--ConsoleHistoryReadIndex;
ConsoleHistoryEnsureBounds();
}
}
static inline void ConsoleHistoryGoForward() {
++ConsoleHistoryReadIndex;
ConsoleHistoryEnsureBounds();
}
static std::string CompositeInput;
static bool CompositeInputExpected { false };
@ -142,11 +161,8 @@ static void ProcessCompositeInput() {
#endif // WIN32
// UP ARROW
// info(std::to_string(ConsoleHistoryReadIndex));
if (!ConsoleHistory.empty()) {
if (ConsoleHistoryReadIndex != 0) {
ConsoleHistoryReadIndex -= 1;
}
ConsoleHistoryGoBack();
CInputBuff = ConsoleHistory.at(ConsoleHistoryReadIndex);
}
#ifdef WIN32
@ -157,12 +173,11 @@ static void ProcessCompositeInput() {
// DOWN ARROW
if (!ConsoleHistory.empty()) {
if (ConsoleHistoryReadIndex != ConsoleHistory.size() - 1) {
ConsoleHistoryReadIndex += 1;
CInputBuff = ConsoleHistory.at(ConsoleHistoryReadIndex);
if (ConsoleHistoryReadIndex == ConsoleHistory.size() - 1) {
CInputBuff = LastInputBuffer;
} else {
CInputBuff = "";
ConsoleHistoryReadIndex = ConsoleHistory.size();
ConsoleHistoryGoForward();
CInputBuff = ConsoleHistory.at(ConsoleHistoryReadIndex);
}
}
} else {
@ -172,7 +187,7 @@ static void ProcessCompositeInput() {
// ensure history doesnt grow too far beyond a max
static constexpr size_t MaxHistory = 10;
if (ConsoleHistory.size() > 2 * MaxHistory) {
std::vector<std::string> NewHistory(ConsoleHistory.begin() + ConsoleHistory.size() - MaxHistory, ConsoleHistory.end());
decltype(ConsoleHistory) NewHistory(ConsoleHistory.begin() + ConsoleHistory.size() - MaxHistory, ConsoleHistory.end());
ConsoleHistory = std::move(NewHistory);
ConsoleHistoryReadIndex = ConsoleHistory.size();
}
@ -233,6 +248,7 @@ void ReadCin() {
// ignore
} else {
CInputBuff += char(In);
LastInputBuffer = CInputBuff;
}
}
}