+ added unit System.Terminal

This commit is contained in:
Nikolay Nikolov 2024-10-20 13:31:39 +03:00
parent 0b3f80d231
commit 4e877c3c11
2 changed files with 590 additions and 0 deletions

View File

@ -66,6 +66,18 @@ begin
AddUnit('system.terminal.base');
end;
T:=P.Targets.AddUnit('system.terminal.pas');
with T.Dependencies do
begin
AddUnit('system.terminal.base');
AddUnit('system.terminal.view');
AddUnit('system.terminal.model');
AddUnit('system.terminal.controller');
AddUnit('system.terminal.inputoutputconnection');
AddUnit('system.terminal.pointingdeviceinput');
AddUnit('system.terminal.keyboardinput');
end;
//P.NamespaceMap:='namespaces.lst';
{$ifndef ALLPACKAGES}

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@ -0,0 +1,578 @@
{ This file is part of fpterm - a terminal emulator, written in Free Pascal
Copyright (C) 2022, 2024 Nikolay Nikolov <nickysn@users.sourceforge.net>
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version with the following modification:
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent modules,and
to copy and distribute the resulting executable under terms of your choice,
provided that you also meet, for each linked independent module, the terms
and conditions of the license of that module. An independent module is a
module which is not derived from or based on this library. If you modify
this library, you may extend this exception to your version of the library,
but you are not obligated to do so. If you do not wish to do so, delete this
exception statement from your version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
for more details.
You should have received a copy of the GNU Library General Public License
along with this library; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA.
}
unit System.Terminal;
{$mode objfpc}{$H+}
interface
uses
{$IFDEF FPC_DOTTEDUNITS}
System.SysUtils,
{$ELSE FPC_DOTTEDUNITS}
SysUtils,
{$ENDIF FPC_DOTTEDUNITS}
System.Terminal.Base,
System.Terminal.View,
System.Terminal.Model,
System.Terminal.Controller,
System.Terminal.InputOutputConnection,
System.Terminal.PointingDeviceInput,
System.Terminal.KeyboardInput;
type
{ TTerminal }
TTerminal = class
private
FView: TTerminalView;
FModel: TTerminalModel;
FController: TTerminalController;
FInputOutputConnection: ITerminalInputOutputConnection;
FKeyboardInput: TTerminalKeyboardInput;
FPointingDeviceInput: TTerminalPointingDeviceInput;
function GetHeight: Integer;
function GetWidth: Integer;
procedure TransmitData(const buf; Bytes: SizeUInt);
procedure ControllerOnResize(NewWidth, NewHeight: Integer);
procedure HandlePointingDevice;
procedure HandleKeyboard;
procedure HandleInputOutput(out TimeToQuit: Boolean);
public
constructor Create(AView: TTerminalView; AKeyboardInput: TTerminalKeyboardInput;
APointingDeviceInput: TTerminalPointingDeviceInput);
destructor Destroy; override;
procedure Update(out TimeToQuit: Boolean);
procedure Run;
property InputOutputConnection: ITerminalInputOutputConnection read FInputOutputConnection write FInputOutputConnection;
property Width: Integer read GetWidth;
property Height: Integer read GetHeight;
end;
implementation
{ TTerminal }
procedure TTerminal.TransmitData(const buf; Bytes: SizeUInt);
begin
if Assigned(FInputOutputConnection) and (Bytes > 0) then
FInputOutputConnection.Write(buf, Bytes);
end;
function TTerminal.GetHeight: Integer;
begin
Result := FModel.Height;
end;
function TTerminal.GetWidth: Integer;
begin
Result := FModel.Width;
end;
procedure TTerminal.ControllerOnResize(NewWidth, NewHeight: Integer);
begin
if Assigned(FInputOutputConnection) then
FInputOutputConnection.Resize(NewWidth, NewHeight);
end;
procedure TTerminal.HandlePointingDevice;
var
pde: TPointingDeviceEvent;
begin
if FPointingDeviceInput.EventAvailable then
begin
FPointingDeviceInput.GetEvent(pde);
FController.HandleMouseEvent(pde);
end;
end;
procedure TTerminal.HandleKeyboard;
var
k: TKeyEvent;
ks: rawbytestring;
UTF16_HighSurrogate: WideChar = #0;
begin
if FKeyboardInput.EventAvailable then
begin
FKeyboardInput.GetEvent(k);
if not (tmfKeyboardActionMode in FController.ModeFlags) then
begin
ks := '';
if k.UnicodeChar <> WideChar(0) then
begin
if (k.UnicodeChar >= WideChar($D800)) and (k.UnicodeChar <= WideChar($DFFF)) then
begin
if (k.UnicodeChar >= WideChar($D800)) and (k.UnicodeChar <= WideChar($DBFF)) then
{ k.UnicodeChar is a high surrogate, save it }
UTF16_HighSurrogate := k.UnicodeChar
else
begin
{ k.UnicodeChar is a low surrogate }
{ if the previous character was a valid high surrogate, combine them to obtain a non-BMP code point }
if (UTF16_HighSurrogate >= WideChar($D800)) and (UTF16_HighSurrogate <= WideChar($DBFF)) then
ks := UTF8Encode(UTF16_HighSurrogate + k.UnicodeChar);
UTF16_HighSurrogate := #0;
end;
end
else
begin
ks := UTF8Encode(k.UnicodeChar);
if ks = #13 then
begin
if tmfAutoNewLine in FController.ModeFlags then
ks := #13#10;
end;
end;
end
else
begin
UTF16_HighSurrogate := #0;
case k.VirtualScanCode of
$3B00: { F1 }
ks := FController.EncodeReturnC1(C1_SS3) + 'P';
$3C00: { F2 }
ks := FController.EncodeReturnC1(C1_SS3) + 'Q';
$3D00: { F3 }
ks := FController.EncodeReturnC1(C1_SS3) + 'R';
$3E00: { F4 }
ks := FController.EncodeReturnC1(C1_SS3) + 'S';
$3F00: { F5 }
ks := FController.EncodeReturnC1(C1_CSI) + '15~';
$4000: { F6 }
ks := FController.EncodeReturnC1(C1_CSI) + '17~';
$4100: { F7 }
ks := FController.EncodeReturnC1(C1_CSI) + '18~';
$4200: { F8 }
ks := FController.EncodeReturnC1(C1_CSI) + '19~';
$4300: { F9 }
ks := FController.EncodeReturnC1(C1_CSI) + '20~';
$4400: { F10 }
ks := FController.EncodeReturnC1(C1_CSI) + '21~';
$8500: { F11 }
ks := FController.EncodeReturnC1(C1_CSI) + '23~';
$8600: { F12 }
ks := FController.EncodeReturnC1(C1_CSI) + '24~';
$5400: { Shift-F1 }
ks := FController.EncodeReturnC1(C1_CSI) + '1;2P';
$5500: { Shift-F2 }
ks := FController.EncodeReturnC1(C1_CSI) + '1;2Q';
$5600: { Shift-F3 }
ks := FController.EncodeReturnC1(C1_CSI) + '1;2R';
$5700: { Shift-F4 }
ks := FController.EncodeReturnC1(C1_CSI) + '1;2S';
$5800: { Shift-F5 }
ks := FController.EncodeReturnC1(C1_CSI) + '15;2~';
$5900: { Shift-F6 }
ks := FController.EncodeReturnC1(C1_CSI) + '17;2~';
$5A00: { Shift-F7 }
ks := FController.EncodeReturnC1(C1_CSI) + '18;2~';
$5B00: { Shift-F8 }
ks := FController.EncodeReturnC1(C1_CSI) + '19;2~';
$5C00: { Shift-F9 }
ks := FController.EncodeReturnC1(C1_CSI) + '20;2~';
$5D00: { Shift-F10 }
ks := FController.EncodeReturnC1(C1_CSI) + '21;2~';
$8700: { Shift-F11 }
ks := FController.EncodeReturnC1(C1_CSI) + '23;2~';
$8800: { Shift-F12 }
ks := FController.EncodeReturnC1(C1_CSI) + '24;2~';
$5E00: { Ctrl-F1 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;6P'
else
ks := FController.EncodeReturnC1(C1_CSI) + '1;5P';
$5F00: { Ctrl-F2 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;6Q'
else
ks := FController.EncodeReturnC1(C1_CSI) + '1;5Q';
$6000: { Ctrl-F3 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;6R'
else
ks := FController.EncodeReturnC1(C1_CSI) + '1;5R';
$6100: { Ctrl-F4 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;6S'
else
ks := FController.EncodeReturnC1(C1_CSI) + '1;5S';
$6200: { Ctrl-F5 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '15;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '15;5~';
$6300: { Ctrl-F6 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '17;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '17;5~';
$6400: { Ctrl-F7 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '18;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '18;5~';
$6500: { Ctrl-F8 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '19;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '19;5~';
$6600: { Ctrl-F9 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '20;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '20;5~';
$6700: { Ctrl-F10 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '21;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '21;5~';
$8900: { Ctrl-F11 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '23;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '23;5~';
$8A00: { Ctrl-F12 }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '24;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '24;5~';
$6800: { Alt-F1 }
ks := FController.EncodeReturnC1(C1_CSI) + '1;3P';
$6900: { Alt-F2 }
ks := FController.EncodeReturnC1(C1_CSI) + '1;3Q';
$6A00: { Alt-F3 }
ks := FController.EncodeReturnC1(C1_CSI) + '1;3R';
$6B00: { Alt-F4 }
ks := FController.EncodeReturnC1(C1_CSI) + '1;3S';
$6C00: { Alt-F5 }
ks := FController.EncodeReturnC1(C1_CSI) + '15;3~';
$6D00: { Alt-F6 }
ks := FController.EncodeReturnC1(C1_CSI) + '17;3~';
$6E00: { Alt-F7 }
ks := FController.EncodeReturnC1(C1_CSI) + '18;3~';
$6F00: { Alt-F8 }
ks := FController.EncodeReturnC1(C1_CSI) + '19;3~';
$7000: { Alt-F9 }
ks := FController.EncodeReturnC1(C1_CSI) + '20;3~';
$7100: { Alt-F10 }
ks := FController.EncodeReturnC1(C1_CSI) + '21;3~';
$8B00: { Alt-F11 }
ks := FController.EncodeReturnC1(C1_CSI) + '23;3~';
$8C00: { Alt-F12 }
ks := FController.EncodeReturnC1(C1_CSI) + '24;3~';
$4800: { Up Arrow }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;2A'
else if tmfCursorKeysSendApplicationSequences in FController.ModeFlags then
ks := FController.EncodeReturnC1(C1_SS3) + 'A'
else
ks := FController.EncodeReturnC1(C1_CSI) + 'A';
$5000: { Down Arrow }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;2B'
else if tmfCursorKeysSendApplicationSequences in FController.ModeFlags then
ks := FController.EncodeReturnC1(C1_SS3) + 'B'
else
ks := FController.EncodeReturnC1(C1_CSI) + 'B';
$4D00: { Right Arrow }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;2C'
else if tmfCursorKeysSendApplicationSequences in FController.ModeFlags then
ks := FController.EncodeReturnC1(C1_SS3) + 'C'
else
ks := FController.EncodeReturnC1(C1_CSI) + 'C';
$4B00: { Left Arrow }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;2D'
else if tmfCursorKeysSendApplicationSequences in FController.ModeFlags then
ks := FController.EncodeReturnC1(C1_SS3) + 'D'
else
ks := FController.EncodeReturnC1(C1_CSI) + 'D';
$8D00: { Ctrl-Up Arrow }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;6A'
else
ks := FController.EncodeReturnC1(C1_CSI) + '1;5A';
$9100: { Ctrl-Down Arrow }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;6B'
else
ks := FController.EncodeReturnC1(C1_CSI) + '1;5B';
$7400: { Ctrl-Right Arrow }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;6C'
else
ks := FController.EncodeReturnC1(C1_CSI) + '1;5C';
$7300: { Ctrl-Left Arrow }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;6D'
else
ks := FController.EncodeReturnC1(C1_CSI) + '1;5D';
$4700: { Home }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;2H'
else if tmfCursorKeysSendApplicationSequences in FController.ModeFlags then
ks := FController.EncodeReturnC1(C1_SS3) + 'H'
else
ks := FController.EncodeReturnC1(C1_CSI) + 'H';
$4F00: { End }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;2F'
else if tmfCursorKeysSendApplicationSequences in FController.ModeFlags then
ks := FController.EncodeReturnC1(C1_SS3) + 'F'
else
ks := FController.EncodeReturnC1(C1_CSI) + 'F';
$5200: { Insert }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '2;2~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '2~';
$5300: { Delete }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '3;2~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '3~';
$4900: { Page Up }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '5;2~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '5~';
$5100: { Page Down }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '6;2~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '6~';
$7700: { Ctrl-Home }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;6H'
else
ks := FController.EncodeReturnC1(C1_CSI) + '1;5H';
$7500: { Ctrl-End }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '1;6F'
else
ks := FController.EncodeReturnC1(C1_CSI) + '1;5F';
$9200: { Ctrl-Insert }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '2;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '2;5~';
$9300: { Ctrl-Delete }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '3;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '3;5~';
$8400: { Ctrl-Page Up }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '5;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '5;5~';
$7600: { Ctrl-Page Down }
if ssShift in k.ShiftState then
ks := FController.EncodeReturnC1(C1_CSI) + '6;6~'
else
ks := FController.EncodeReturnC1(C1_CSI) + '6;5~';
$0F00: { Shift-Tab }
ks := FController.EncodeReturnC1(C1_CSI) + 'Z';
$2900: { Alt-` }
ks := #27'`';
$7800: { Alt-1 }
ks := #27'1';
$7900: { Alt-2 }
ks := #27'2';
$7A00: { Alt-3 }
ks := #27'3';
$7B00: { Alt-4 }
ks := #27'4';
$7C00: { Alt-5 }
ks := #27'5';
$7D00: { Alt-6 }
ks := #27'6';
$7E00: { Alt-7 }
ks := #27'7';
$7F00: { Alt-8 }
ks := #27'8';
$8000: { Alt-9 }
ks := #27'9';
$8100: { Alt-0 }
ks := #27'0';
$8200: { Alt-- }
ks := #27'-';
$8300: { Alt-= }
ks := #27'=';
$1000: { Alt-Q }
ks := #27'q';
$1100: { Alt-W }
ks := #27'w';
$1200: { Alt-E }
ks := #27'e';
$1300: { Alt-R }
ks := #27'r';
$1400: { Alt-T }
ks := #27't';
$1500: { Alt-Y }
ks := #27'y';
$1600: { Alt-U }
ks := #27'u';
$1700: { Alt-I }
ks := #27'i';
$1800: { Alt-O }
ks := #27'o';
$1900: { Alt-P }
ks := #27'p';
$1A00: { Alt-[ }
ks := #27'[';
$1B00: { Alt-] }
ks := #27']';
$2B00: { Alt-\ }
ks := #27'\';
$1E00: { Alt-A }
ks := #27'a';
$1F00: { Alt-S }
ks := #27's';
$2000: { Alt-D }
ks := #27'd';
$2100: { Alt-F }
ks := #27'f';
$2200: { Alt-G }
ks := #27'g';
$2300: { Alt-H }
ks := #27'h';
$2400: { Alt-J }
ks := #27'j';
$2500: { Alt-K }
ks := #27'k';
$2600: { Alt-L }
ks := #27'l';
$2700: { Alt-; }
ks := #27';';
$2800: { Alt-' }
ks := #27'''';
$2C00: { Alt-Z }
ks := #27'z';
$2D00: { Alt-X }
ks := #27'x';
$2E00: { Alt-C }
ks := #27'c';
$2F00: { Alt-V }
ks := #27'v';
$3000: { Alt-B }
ks := #27'b';
$3100: { Alt-N }
ks := #27'n';
$3200: { Alt-M }
ks := #27'm';
$3300: { Alt-, }
ks := #27',';
$3400: { Alt-. }
ks := #27'.';
$3500: { Alt-/ }
ks := #27'/';
end;
end;
if ks <> '' then
begin
FController.MaybeLocalEcho(ks);
TransmitData(ks[1], Length(ks));
end;
end;
end;
end;
procedure TTerminal.HandleInputOutput(out TimeToQuit: Boolean);
var
buf: array [0..1023] of Char;
bytes_read: SizeInt;
begin
if Assigned(FInputOutputConnection) then
begin
TimeToQuit := FInputOutputConnection.Closed;
if FInputOutputConnection.DataAvailable then
begin
bytes_read := FInputOutputConnection.Read(buf, SizeOf(buf));
if bytes_read > 0 then
FController.ReceiveData(buf, bytes_read);
end;
end
else
TimeToQuit := False;
end;
constructor TTerminal.Create(AView: TTerminalView;
AKeyboardInput: TTerminalKeyboardInput;
APointingDeviceInput: TTerminalPointingDeviceInput);
begin
FView := AView;
FKeyboardInput := AKeyboardInput;
FPointingDeviceInput := APointingDeviceInput;
FModel := TTerminalModel.Create(FView);
FController := TTerminalController.Create(FModel, ttVT420);
FController.OnTransmitData := @TransmitData;
FController.OnResize := @ControllerOnResize;
end;
destructor TTerminal.Destroy;
begin
FreeAndNil(FController);
FreeAndNil(FModel);
inherited Destroy;
end;
procedure TTerminal.Update(out TimeToQuit: Boolean);
var
NewWidth, NewHeight: Integer;
begin
FView.IdleLoop;
if FView.CheckPendingResize(NewWidth, NewHeight) then
FController.Resize(NewWidth, NewHeight);
HandlePointingDevice;
HandleKeyboard;
HandleInputOutput(TimeToQuit);
end;
procedure TTerminal.Run;
var
Done: Boolean;
begin
Done := False;
repeat
Update(Done);
until Done;
end;
end.