Michael Schimmel
318 lines
10 KiB
ObjectPascal
318 lines
10 KiB
ObjectPascal
unit MainUnit;
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interface
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uses
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System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
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FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, FMX.Controls.Presentation, FMX.StdCtrls, FMX.WebBrowser,
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Winapi.WebView2, FMX.Memo.Types, FMX.ScrollBox, FMX.Memo,
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// Korrekte und vollständige Units
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System.IOUtils, System.Threading, System.Diagnostics, Winapi.Windows, LLVM.Runner;
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const
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// Pfad zur HTML-Datei
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PATH_BLOCKLY = 'T:\Myc\Blockly\index.html';
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// Pfade zu den LLVM-Werkzeugen
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CLANG_PATH = 'clang.exe';
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LLD_PATH = 'lld-link.exe';
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type
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TMainForm = class( TForm )
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WebBrowser1: TWebBrowser;
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Memo: TMemo;
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Splitter1: TSplitter;
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ToolBar1: TToolBar;
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RefreshButton: TSpeedButton;
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SaveWorkspaceButton: TSpeedButton;
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GenerateCodeButton: TSpeedButton;
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procedure FormCreate( Sender: TObject );
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procedure FormDestroy( Sender: TObject );
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procedure LauchSiteButtonClick( Sender: TObject );
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procedure SaveWorkspaceButtonClick( Sender: TObject );
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procedure GenerateCodeButtonClick( Sender: TObject );
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procedure WebBrowser1DidFinishLoad( ASender: TObject );
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private
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{ Private declarations }
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FWebView: ICoreWebView2;
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FWebMessageReceiver: ICoreWebView2WebMessageReceivedEventHandler;
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FWebMessageReceivedToken: EventRegistrationToken;
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procedure HandleWebMessage( const AMessage: string );
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function ExecuteProcess( const ACommand: string; const AParameters: string ): string;
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public
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{ Public declarations }
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end;
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var
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MainForm: TMainForm;
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implementation
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{$R *.fmx}
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type
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TWebMessageReceiver = class( TInterfacedObject, ICoreWebView2WebMessageReceivedEventHandler )
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private
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FOwner: TMainForm;
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public
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constructor Create( AOwner: TMainForm );
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function Invoke( const Sender: ICoreWebView2; const args: ICoreWebView2WebMessageReceivedEventArgs ): HResult; stdcall;
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end;
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constructor TWebMessageReceiver.Create( AOwner: TMainForm );
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begin
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inherited Create;
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FOwner := AOwner;
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end;
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function TWebMessageReceiver.Invoke( const Sender: ICoreWebView2; const args: ICoreWebView2WebMessageReceivedEventArgs ): HResult;
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var
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message: PWideChar;
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begin
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Result := args.TryGetWebMessageAsString( message );
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if Succeeded( Result ) then
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begin
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TThread.Queue( nil,
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procedure
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begin
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FOwner.HandleWebMessage( string( message ) );
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end );
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end;
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Result := S_OK;
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end;
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procedure TMainForm.FormCreate( Sender: TObject );
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begin
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TLLVMRunner.Log := Memo.Lines;
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LauchSiteButtonClick(Self);
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end;
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procedure TMainForm.FormDestroy( Sender: TObject );
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begin
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TLLVMRunner.Log := nil;
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if ( FWebView <> nil ) and ( FWebMessageReceivedToken.value <> 0 ) then
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begin
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FWebView.remove_WebMessageReceived( FWebMessageReceivedToken );
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end;
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end;
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function TMainForm.ExecuteProcess( const ACommand: string; const AParameters: string ): string;
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var
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sa: TSecurityAttributes;
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si: TStartupInfo;
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pi: TProcessInformation;
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stdOutRead, stdOutWrite: THandle;
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success: Boolean;
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cmdLine: string;
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buffer: TBytes;
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bytesRead: Cardinal;
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output: string;
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begin
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// Pipe für StdOut und StdErr erstellen
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sa.nLength := SizeOf( TSecurityAttributes );
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sa.lpSecurityDescriptor := nil;
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sa.bInheritHandle := True;
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// Für stdout und stderr wird dieselbe Pipe verwendet, da clang Fehler auf stdout ausgibt
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if not CreatePipe( stdOutRead, stdOutWrite, @sa, 0 ) then
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Exit( 'Error creating pipe.' );
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try
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// StartupInfo vorbereiten
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FillChar( si, SizeOf( TStartupInfo ), 0 );
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si.cb := SizeOf( TStartupInfo );
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si.dwFlags := STARTF_USESTDHANDLES or STARTF_USESHOWWINDOW;
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si.wShowWindow := SW_HIDE; // Fenster explizit verstecken
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si.hStdInput := GetStdHandle( STD_INPUT_HANDLE );
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si.hStdOutput := stdOutWrite;
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si.hStdError := stdOutWrite; // Leite stderr auf dieselbe Pipe wie stdout
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cmdLine := Format( '"%s" %s', [ACommand, AParameters] );
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success := CreateProcess(
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nil,
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PChar( cmdLine ),
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nil,
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nil,
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True,
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CREATE_NO_WINDOW,
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nil,
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nil,
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si,
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pi
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);
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// Schreib-Handle der Pipe sofort schließen
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CloseHandle( stdOutWrite );
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if not success then
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Exit( Format( 'CreateProcess failed. Code: %d', [GetLastError] ) );
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try
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output := '';
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// Warten, bis der Prozess fertig ist und alle Daten in die Pipe geschrieben hat
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if WaitForSingleObject( pi.hProcess, 5000 ) = WAIT_TIMEOUT then // 5s Timeout
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begin
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TerminateProcess( pi.hProcess, 1 );
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Exit( 'Process timed out.' );
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end;
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// Bytes aus der Pipe lesen
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repeat
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SetLength( buffer, 1024 );
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bytesRead := 0;
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if ReadFile( stdOutRead, buffer[0], Length( buffer ), bytesRead, nil ) and ( bytesRead > 0 ) then
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begin
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SetLength( buffer, bytesRead );
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// Gelesene Bytes mit dem Default-System-Encoding in einen String umwandeln
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output := output + TEncoding.Default.GetString( buffer );
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end
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else
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begin
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break; // Pipe ist leer oder Fehler
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end;
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until False;
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finally
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CloseHandle( pi.hProcess );
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CloseHandle( pi.hThread );
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end;
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Result := output;
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finally
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CloseHandle( stdOutRead );
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end;
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end;
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procedure TMainForm.LauchSiteButtonClick( Sender: TObject );
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begin
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WebBrowser1.Navigate( PATH_BLOCKLY );
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end;
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procedure TMainForm.SaveWorkspaceButtonClick( Sender: TObject );
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begin
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WebBrowser1.EvaluateJavaScript( 'saveWorkspace()' );
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end;
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procedure TMainForm.GenerateCodeButtonClick( Sender: TObject );
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begin
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WebBrowser1.EvaluateJavaScript( 'generateAndPostCode()' );
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end;
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procedure TMainForm.HandleWebMessage( const AMessage: string );
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begin
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Memo.Lines.Clear;
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Memo.Lines.Add( 'LLVM-Code empfangen. Starte Kompilierung...' );
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Memo.Lines.Add( AMessage );
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Memo.Lines.Add( '--------------------' );
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TTask.Run(
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procedure
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var
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llFile, objFile, dllFile: string;
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compilerOutput: string;
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success: Boolean;
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begin
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llFile := TPath.Combine( TPath.GetTempPath, 'poc.ll' );
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objFile := TPath.ChangeExtension( llFile, '.obj' );
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dllFile := TPath.ChangeExtension( llFile, '.dll' );
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success := False;
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try
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TFile.WriteAllText( llFile, AMessage );
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TThread.Queue( nil,
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procedure
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begin
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Memo.Lines.Add( 'Kompiliere zu Objektdatei...' );
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end );
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compilerOutput := ExecuteProcess( CLANG_PATH, Format( '-c "%s" -o "%s"', [llFile, objFile] ) );
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TThread.Queue( nil,
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procedure
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begin
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Memo.Lines.Add( compilerOutput );
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end );
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if not TFile.Exists( objFile ) then
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begin
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TThread.Queue( nil,
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procedure
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begin
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Memo.Lines.Add( 'FEHLER: Kompilierung fehlgeschlagen. .obj-Datei nicht erstellt.' );
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end );
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Exit;
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end;
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TThread.Queue( nil,
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procedure
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begin
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Memo.Lines.Add( 'Linke zu DLL...' );
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end );
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compilerOutput := ExecuteProcess( LLD_PATH, Format( '/dll /noentry "%s" /out:"%s"', [objFile, dllFile] ) );
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TThread.Queue( nil,
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procedure
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begin
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Memo.Lines.Add( compilerOutput );
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end );
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if TFile.Exists( dllFile ) then
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begin
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success := True;
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TThread.Queue( nil,
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procedure
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begin
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Memo.Lines.Add( Format( 'ERFOLG: DLL wurde erstellt: %s', [dllFile] ) );
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end );
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end
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else
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begin
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TThread.Queue( nil,
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procedure
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begin
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Memo.Lines.Add( 'FEHLER: Linken fehlgeschlagen. .dll-Datei nicht erstellt.' );
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end );
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end;
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finally
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if TFile.Exists( llFile ) then
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TFile.Delete( llFile );
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if TFile.Exists( objFile ) then
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TFile.Delete( objFile );
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if not success and TFile.Exists( dllFile ) then
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TFile.Delete( dllFile );
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end;
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Memo.Lines.Add( '---------------------------------------------------------' );
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Memo.Lines.Add( 'DLL wird aufgerufen:' );
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if TFile.Exists( dllFile ) then
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begin
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var
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Runner := TLLVMRunner.Create( dllFile );
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try
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Runner.Execute;
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finally
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Runner.Free;
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end;
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end;
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end );
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Memo.Lines.Add( 'DLL beendet.' );
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end;
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procedure TMainForm.WebBrowser1DidFinishLoad( ASender: TObject );
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begin
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if Assigned( FWebMessageReceiver ) then
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Exit;
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if Supports( WebBrowser1, ICoreWebView2, FWebView ) then
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begin
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FWebMessageReceiver := TWebMessageReceiver.Create( Self );
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FWebView.add_WebMessageReceived( FWebMessageReceiver, FWebMessageReceivedToken );
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end;
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end;
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end.
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