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OnCancel

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This commit is contained in:
Brian Fiete 2021-06-07 06:38:29 -07:00
parent 1e5e263a31
commit c3e6282a8b
1 changed files with 39 additions and 1 deletions
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40
BeefLibs/corlib/src/Console.bf
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@ -7,6 +7,12 @@ namespace System
{ {
public static class Console public static class Console
{ {
public enum CancelKind
{
CtrlC,
CtrlBreak
}
static Encoding InputEncoding = Encoding.ASCII; static Encoding InputEncoding = Encoding.ASCII;
static Encoding OutputEncoding = Encoding.ASCII; static Encoding OutputEncoding = Encoding.ASCII;
@ -16,6 +22,9 @@ namespace System
static readonly ConsoleColor sOriginalForegroundColor = sForegroundColor; static readonly ConsoleColor sOriginalForegroundColor = sForegroundColor;
static readonly ConsoleColor sOriginalBackgroundColor = sBackgroundColor; static readonly ConsoleColor sOriginalBackgroundColor = sBackgroundColor;
static Event<delegate void (CancelKind cancelKind, ref bool terminate)> sOnCancel ~ _.Dispose();
static bool sCancelEventRegistered;
public static ConsoleColor ForegroundColor public static ConsoleColor ForegroundColor
{ {
get { return sForegroundColor; } get { return sForegroundColor; }
@ -42,6 +51,31 @@ namespace System
public uint16[2] mMaximumWindowSize; public uint16[2] mMaximumWindowSize;
} }
public static ref Event<delegate void (CancelKind cancelKind, ref bool terminate)> OnCancel
{
get
{
if (!sCancelEventRegistered)
{
sCancelEventRegistered = true;
#if BF_PLATFORM_WINDOWS
SetConsoleCtrlHandler(=> ConsoleCtrlHandler, true);
#endif
}
return ref sOnCancel;
}
}
#if BF_PLATFORM_WINDOWS
[CallingConvention(.Stdcall)]
public static Windows.IntBool ConsoleCtrlHandler(int32 ctrlType)
{
bool terminate = true;
if ((ctrlType == 0) || (ctrlType == 1))
sOnCancel((.)ctrlType, ref terminate);
return terminate ? false : true;
}
[CLink, CallingConvention(.Stdcall)] [CLink, CallingConvention(.Stdcall)]
static extern int SetConsoleTextAttribute(void* hConsoleOutput, uint16 wAttributes); static extern int SetConsoleTextAttribute(void* hConsoleOutput, uint16 wAttributes);
@ -51,7 +85,11 @@ namespace System
[CLink, CallingConvention(.Stdcall)] [CLink, CallingConvention(.Stdcall)]
static extern void* GetStdHandle(uint32 nStdHandle); static extern void* GetStdHandle(uint32 nStdHandle);
#if BF_PLATFORM_WINDOWS [CallingConvention(.Stdcall)]
function Windows.IntBool ConsoleCtrlHandler(int32 ctrlType);
[CLink, CallingConvention(.Stdcall)]
static extern Windows.IntBool SetConsoleCtrlHandler(ConsoleCtrlHandler handler, Windows.IntBool addHandler);
public static this() public static this()
{ {
let handle = GetStdHandle(STD_OUTPUT_HANDLE); let handle = GetStdHandle(STD_OUTPUT_HANDLE);