X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/50567b69d60faa5a3575a077bb4f98530813c80d..11e3c6ef36393fb5863ea2f9601d8facd73acb12:/samples/exec/exec.cpp diff --git a/samples/exec/exec.cpp b/samples/exec/exec.cpp index 1634f47fb7..d72c89a7ad 100644 --- a/samples/exec/exec.cpp +++ b/samples/exec/exec.cpp @@ -17,11 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "exec.cpp" - #pragma interface "exec.cpp" -#endif - // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" @@ -30,20 +25,38 @@ #endif // for all others, include the necessary headers (this file is usually all you -// need because it includes almost all "standard" wxWindows headers +// need because it includes almost all "standard" wxWidgets headers #ifndef WX_PRECOMP #include "wx/app.h" + #include "wx/log.h" #include "wx/frame.h" + #include "wx/panel.h" + + #include "wx/timer.h" + #include "wx/utils.h" #include "wx/menu.h" + #include "wx/msgdlg.h" #include "wx/textdlg.h" - #include "wx/listbox.h" #include "wx/filedlg.h" #include "wx/choicdlg.h" + + #include "wx/button.h" + #include "wx/checkbox.h" + #include "wx/stattext.h" + #include "wx/textctrl.h" + #include "wx/listbox.h" + + #include "wx/sizer.h" #endif #include "wx/txtstrm.h" +#include "wx/numdlg.h" +#include "wx/textdlg.h" +#include "wx/ffile.h" +#include "wx/scopedptr.h" +#include "wx/stopwatch.h" #include "wx/process.h" @@ -53,8 +66,12 @@ #include "wx/dde.h" #endif // __WINDOWS__ +#ifndef wxHAS_IMAGES_IN_RESOURCES + #include "../sample.xpm" +#endif + // ---------------------------------------------------------------------------- -// private classes +// the usual application and main frame classes // ---------------------------------------------------------------------------- // Define a new application type, each program should derive a class from wxApp @@ -72,14 +89,18 @@ public: // Define an array of process pointers used by MyFrame class MyPipedProcess; -WX_DEFINE_ARRAY(MyPipedProcess *, MyProcessesArray); +WX_DEFINE_ARRAY_PTR(MyPipedProcess *, MyPipedProcessesArray); + +class MyProcess; +WX_DEFINE_ARRAY_PTR(MyProcess *, MyProcessesArray); // Define a new frame type: this is going to be our main frame class MyFrame : public wxFrame { public: - // ctor(s) + // ctor and dtor MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size); + virtual ~MyFrame(); // event handlers (these functions should _not_ be virtual) void OnQuit(wxCommandEvent& event); @@ -88,32 +109,55 @@ public: void OnClear(wxCommandEvent& event); + void OnBeginBusyCursor(wxCommandEvent& event); + void OnEndBusyCursor(wxCommandEvent& event); + void OnSyncExec(wxCommandEvent& event); void OnAsyncExec(wxCommandEvent& event); void OnShell(wxCommandEvent& event); void OnExecWithRedirect(wxCommandEvent& event); void OnExecWithPipe(wxCommandEvent& event); + void OnPOpen(wxCommandEvent& event); + void OnFileExec(wxCommandEvent& event); + void OnFileLaunch(wxCommandEvent& event); + void OnOpenURL(wxCommandEvent& event); + void OnShowCommandForExt(wxCommandEvent& event); void OnAbout(wxCommandEvent& event); // polling output of async processes + void OnIdleTimer(wxTimerEvent& event); void OnIdle(wxIdleEvent& event); // for MyPipedProcess void OnProcessTerminated(MyPipedProcess *process); wxListBox *GetLogListBox() const { return m_lbox; } + // for MyProcess + void OnAsyncTermination(MyProcess *process); + + // timer updating a counter in the background + void OnBgTimer(wxTimerEvent& event); + private: void ShowOutput(const wxString& cmd, const wxArrayString& output, const wxString& title); + int GetExecFlags() const; + void DoAsyncExec(const wxString& cmd); + void AddAsyncProcess(MyProcess *process) { m_allAsync.push_back(process); } + + void AddPipedProcess(MyPipedProcess *process); + void RemovePipedProcess(MyPipedProcess *process); + + // the PID of the last process we launched asynchronously - int m_pidLast; + long m_pidLast; // last command we executed wxString m_cmdLast; @@ -132,12 +176,81 @@ private: wxListBox *m_lbox; - MyProcessesArray m_running; + // array of running processes with redirected IO + MyPipedProcessesArray m_running; + + // array of all asynchrously running processes + MyProcessesArray m_allAsync; + + // the idle event wake up timer + wxTimer m_timerIdleWakeUp; - // any class wishing to process wxWindows events must use this macro + // a background timer allowing to easily check visually whether the + // messages are processed or not + wxTimer m_timerBg; + + // any class wishing to process wxWidgets events must use this macro DECLARE_EVENT_TABLE() }; +// ---------------------------------------------------------------------------- +// MyPipeFrame: allows the user to communicate with the child process +// ---------------------------------------------------------------------------- + +class MyPipeFrame : public wxFrame +{ +public: + MyPipeFrame(wxFrame *parent, + const wxString& cmd, + wxProcess *process); + +protected: + void OnTextEnter(wxCommandEvent& WXUNUSED(event)) { DoSend(); } + void OnBtnSend(wxCommandEvent& WXUNUSED(event)) { DoSend(); } + void OnBtnSendFile(wxCommandEvent& WXUNUSED(event)); + void OnBtnGet(wxCommandEvent& WXUNUSED(event)) { DoGet(); } + void OnBtnClose(wxCommandEvent& WXUNUSED(event)) { DoClose(); } + + void OnClose(wxCloseEvent& event); + + void OnProcessTerm(wxProcessEvent& event); + + void DoSend() + { + wxString s(m_textOut->GetValue()); + s += wxT('\n'); + m_out.Write(s.c_str(), s.length()); + m_textOut->Clear(); + + DoGet(); + } + + void DoGet(); + void DoClose(); + +private: + void DoGetFromStream(wxTextCtrl *text, wxInputStream& in); + void DisableInput(); + void DisableOutput(); + + + wxProcess *m_process; + + wxOutputStream &m_out; + wxInputStream &m_in, + &m_err; + + wxTextCtrl *m_textOut, + *m_textIn, + *m_textErr; + + DECLARE_EVENT_TABLE() +}; + +// ---------------------------------------------------------------------------- +// wxProcess-derived classes +// ---------------------------------------------------------------------------- + // This is the handler for process termination events class MyProcess : public wxProcess { @@ -196,34 +309,55 @@ private: // IDs for the controls and the menu commands enum { + // timer ids + Exec_TimerIdle = 10, + Exec_TimerBg, + // menu items - Exec_Quit = 100, - Exec_Kill, + Exec_Kill = 100, Exec_ClearLog, + Exec_BeginBusyCursor, + Exec_EndBusyCursor, Exec_SyncExec = 200, Exec_AsyncExec, Exec_Shell, + Exec_POpen, Exec_OpenFile, + Exec_ShowCommandForExt, + Exec_LaunchFile, + Exec_OpenURL, Exec_DDEExec, Exec_DDERequest, Exec_Redirect, Exec_Pipe, - Exec_About = 300 + Exec_Flags_HideConsole, + Exec_Flags_ShowConsole, + Exec_Flags_NoEvents, + Exec_About = wxID_ABOUT, + Exec_Quit = wxID_EXIT, + + // control ids + Exec_Btn_Send = 1000, + Exec_Btn_SendFile, + Exec_Btn_Get, + Exec_Btn_Close }; -static const wxChar *DIALOG_TITLE = _T("Exec sample"); +static const wxChar *DIALOG_TITLE = wxT("Exec sample"); // ---------------------------------------------------------------------------- -// event tables and other macros for wxWindows +// event tables and other macros for wxWidgets // ---------------------------------------------------------------------------- -// the event tables connect the wxWindows events with the functions (event +// the event tables connect the wxWidgets events with the functions (event // handlers) which process them. It can be also done at run-time, but for the // simple menu events like this the static method is much simpler. BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_MENU(Exec_Quit, MyFrame::OnQuit) EVT_MENU(Exec_Kill, MyFrame::OnKill) EVT_MENU(Exec_ClearLog, MyFrame::OnClear) + EVT_MENU(Exec_BeginBusyCursor, MyFrame::OnBeginBusyCursor) + EVT_MENU(Exec_EndBusyCursor, MyFrame::OnEndBusyCursor) EVT_MENU(Exec_SyncExec, MyFrame::OnSyncExec) EVT_MENU(Exec_AsyncExec, MyFrame::OnAsyncExec) @@ -231,17 +365,40 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_MENU(Exec_Redirect, MyFrame::OnExecWithRedirect) EVT_MENU(Exec_Pipe, MyFrame::OnExecWithPipe) + EVT_MENU(Exec_POpen, MyFrame::OnPOpen) + EVT_MENU(Exec_OpenFile, MyFrame::OnFileExec) + EVT_MENU(Exec_ShowCommandForExt, MyFrame::OnShowCommandForExt) + EVT_MENU(Exec_LaunchFile, MyFrame::OnFileLaunch) + EVT_MENU(Exec_OpenURL, MyFrame::OnOpenURL) +#ifdef __WINDOWS__ EVT_MENU(Exec_DDEExec, MyFrame::OnDDEExec) EVT_MENU(Exec_DDERequest, MyFrame::OnDDERequest) +#endif // __WINDOWS__ EVT_MENU(Exec_About, MyFrame::OnAbout) EVT_IDLE(MyFrame::OnIdle) + + EVT_TIMER(Exec_TimerIdle, MyFrame::OnIdleTimer) + EVT_TIMER(Exec_TimerBg, MyFrame::OnBgTimer) END_EVENT_TABLE() -// Create a new application object: this macro will allow wxWindows to create +BEGIN_EVENT_TABLE(MyPipeFrame, wxFrame) + EVT_BUTTON(Exec_Btn_Send, MyPipeFrame::OnBtnSend) + EVT_BUTTON(Exec_Btn_SendFile, MyPipeFrame::OnBtnSendFile) + EVT_BUTTON(Exec_Btn_Get, MyPipeFrame::OnBtnGet) + EVT_BUTTON(Exec_Btn_Close, MyPipeFrame::OnBtnClose) + + EVT_TEXT_ENTER(wxID_ANY, MyPipeFrame::OnTextEnter) + + EVT_CLOSE(MyPipeFrame::OnClose) + + EVT_END_PROCESS(wxID_ANY, MyPipeFrame::OnProcessTerm) +END_EVENT_TABLE() + +// Create a new application object: this macro will allow wxWidgets to create // the application object during program execution (it's better than using a // static object for many reasons) and also declares the accessor function // wxGetApp() which will return the reference of the right type (i.e. MyApp and @@ -259,28 +416,38 @@ IMPLEMENT_APP(MyApp) // `Main program' equivalent: the program execution "starts" here bool MyApp::OnInit() { + if ( !wxApp::OnInit() ) + return false; + // Create the main application window - MyFrame *frame = new MyFrame(_T("Exec wxWindows sample"), + MyFrame *frame = new MyFrame(wxT("Exec wxWidgets sample"), wxDefaultPosition, wxSize(500, 140)); - // Show it and tell the application that it's our main window - frame->Show(TRUE); - SetTopWindow(frame); + // Show it + frame->Show(true); // success: wxApp::OnRun() will be called which will enter the main message - // loop and the application will run. If we returned FALSE here, the + // loop and the application will run. If we returned false here, the // application would exit immediately. - return TRUE; + return true; } // ---------------------------------------------------------------------------- // main frame // ---------------------------------------------------------------------------- +#ifdef __VISUALC__ +#pragma warning(disable: 4355) // this used in base member initializer list +#endif + // frame constructor MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) - : wxFrame((wxFrame *)NULL, -1, title, pos, size) + : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size), + m_timerIdleWakeUp(this, Exec_TimerIdle), + m_timerBg(this, Exec_TimerBg) { + SetIcon(wxICON(sample)); + m_pidLast = 0; #ifdef __WXMAC__ @@ -290,61 +457,94 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) #endif // create a menu bar - wxMenu *menuFile = new wxMenu(_T(""), wxMENU_TEAROFF); - menuFile->Append(Exec_Kill, _T("&Kill process...\tCtrl-K"), - _T("Kill a process by PID")); + wxMenu *menuFile = new wxMenu(wxEmptyString, wxMENU_TEAROFF); + menuFile->Append(Exec_Kill, wxT("&Kill process...\tCtrl-K"), + wxT("Kill a process by PID")); + menuFile->AppendSeparator(); + menuFile->Append(Exec_OpenFile, wxT("Open &file...\tCtrl-F"), + wxT("Launch the command to open this kind of files")); + menuFile->Append(Exec_ShowCommandForExt, + "Show association for extension...\tShift-Ctrl-A", + "Show the command associated with the given extension"); + menuFile->Append(Exec_LaunchFile, wxT("La&unch file...\tShift-Ctrl-F"), + wxT("Launch the default application associated with the file")); + menuFile->Append(Exec_OpenURL, wxT("Open &URL...\tCtrl-U"), + wxT("Launch the default browser with the given URL")); + menuFile->AppendSeparator(); + menuFile->Append(Exec_BeginBusyCursor, wxT("Show &busy cursor\tCtrl-C")); + menuFile->Append(Exec_EndBusyCursor, wxT("Show &normal cursor\tShift-Ctrl-C")); menuFile->AppendSeparator(); - menuFile->Append(Exec_ClearLog, _T("&Clear log\tCtrl-C"), - _T("Clear the log window")); + menuFile->Append(Exec_ClearLog, wxT("&Clear log\tCtrl-L"), + wxT("Clear the log window")); menuFile->AppendSeparator(); - menuFile->Append(Exec_Quit, _T("E&xit\tAlt-X"), _T("Quit this program")); + menuFile->Append(Exec_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program")); + + wxMenu *flagsMenu = new wxMenu; + flagsMenu->AppendCheckItem(Exec_Flags_HideConsole, "Always &hide console"); + flagsMenu->AppendCheckItem(Exec_Flags_ShowConsole, "Always &show console"); + flagsMenu->AppendCheckItem(Exec_Flags_NoEvents, "Disable &events", + "This flag is valid for sync execution only"); wxMenu *execMenu = new wxMenu; - execMenu->Append(Exec_SyncExec, _T("Sync &execution...\tCtrl-E"), - _T("Launch a program and return when it terminates")); - execMenu->Append(Exec_AsyncExec, _T("&Async execution...\tCtrl-A"), - _T("Launch a program and return immediately")); - execMenu->Append(Exec_Shell, _T("Execute &shell command...\tCtrl-S"), - _T("Launch a shell and execute a command in it")); + execMenu->AppendSubMenu(flagsMenu, "Execution flags"); execMenu->AppendSeparator(); - execMenu->Append(Exec_Redirect, _T("Capture command &output...\tCtrl-O"), - _T("Launch a program and capture its output")); - execMenu->Append(Exec_Pipe, _T("&Pipe through command...\tCtrl-P"), - _T("Pipe a string through a filter")); - + execMenu->Append(Exec_SyncExec, wxT("Sync &execution...\tCtrl-E"), + wxT("Launch a program and return when it terminates")); + execMenu->Append(Exec_AsyncExec, wxT("&Async execution...\tCtrl-A"), + wxT("Launch a program and return immediately")); + execMenu->Append(Exec_Shell, wxT("Execute &shell command...\tCtrl-S"), + wxT("Launch a shell and execute a command in it")); execMenu->AppendSeparator(); - execMenu->Append(Exec_OpenFile, _T("Open &file...\tCtrl-F"), - _T("Launch the command to open this kind of files")); + execMenu->Append(Exec_Redirect, wxT("Capture command &output...\tCtrl-O"), + wxT("Launch a program and capture its output")); + execMenu->Append(Exec_Pipe, wxT("&Pipe through command..."), + wxT("Pipe a string through a filter")); + execMenu->Append(Exec_POpen, wxT("&Open a pipe to a command...\tCtrl-P"), + wxT("Open a pipe to and from another program")); + #ifdef __WINDOWS__ execMenu->AppendSeparator(); - execMenu->Append(Exec_DDEExec, _T("Execute command via &DDE...\tCtrl-D")); - execMenu->Append(Exec_DDERequest, _T("Send DDE &request...\tCtrl-R")); + execMenu->Append(Exec_DDEExec, wxT("Execute command via &DDE...\tCtrl-D")); + execMenu->Append(Exec_DDERequest, wxT("Send DDE &request...\tCtrl-R")); #endif - wxMenu *helpMenu = new wxMenu(_T(""), wxMENU_TEAROFF); - helpMenu->Append(Exec_About, _T("&About...\tF1"), _T("Show about dialog")); + wxMenu *helpMenu = new wxMenu(wxEmptyString, wxMENU_TEAROFF); + helpMenu->Append(Exec_About, wxT("&About\tF1"), wxT("Show about dialog")); // now append the freshly created menu to the menu bar... wxMenuBar *menuBar = new wxMenuBar(); - menuBar->Append(menuFile, _T("&File")); - menuBar->Append(execMenu, _T("&Exec")); - menuBar->Append(helpMenu, _T("&Help")); + menuBar->Append(menuFile, wxT("&File")); + menuBar->Append(execMenu, wxT("&Exec")); + menuBar->Append(helpMenu, wxT("&Help")); // ... and attach this menu bar to the frame SetMenuBar(menuBar); // create the listbox in which we will show misc messages as they come - m_lbox = new wxListBox(this, -1); + m_lbox = new wxListBox(this, wxID_ANY); wxFont font(12, wxFONTFAMILY_TELETYPE, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL); - if ( font.Ok() ) + if ( font.IsOk() ) m_lbox->SetFont(font); #if wxUSE_STATUSBAR // create a status bar just for fun (by default with 1 pane only) - CreateStatusBar(); - SetStatusText(_T("Welcome to wxWindows exec sample!")); + CreateStatusBar(2); + SetStatusText(wxT("Welcome to wxWidgets exec sample!")); #endif // wxUSE_STATUSBAR + + m_timerBg.Start(1000); +} + +MyFrame::~MyFrame() +{ + // any processes left until now must be deleted manually: normally this is + // done when the associated process terminates but it must be still running + // if this didn't happen until now + for ( size_t n = 0; n < m_allAsync.size(); n++ ) + { + delete m_allAsync[n]; + } } // ---------------------------------------------------------------------------- @@ -353,8 +553,8 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size) void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) { - // TRUE is to force the frame to close - Close(TRUE); + // true is to force the frame to close + Close(true); } void MyFrame::OnClear(wxCommandEvent& WXUNUSED(event)) @@ -362,19 +562,30 @@ void MyFrame::OnClear(wxCommandEvent& WXUNUSED(event)) m_lbox->Clear(); } +void MyFrame::OnBeginBusyCursor(wxCommandEvent& WXUNUSED(event)) +{ + wxBeginBusyCursor(); +} + +void MyFrame::OnEndBusyCursor(wxCommandEvent& WXUNUSED(event)) +{ + wxEndBusyCursor(); +} + void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) { - wxMessageBox(_T("Exec wxWindows Sample\n© 2000-2001 Vadim Zeitlin"), - _T("About Exec"), wxOK | wxICON_INFORMATION, this); + wxMessageBox(wxT("Exec wxWidgets Sample\n(c) 2000-2002 Vadim Zeitlin"), + wxT("About Exec"), wxOK | wxICON_INFORMATION, this); } void MyFrame::OnKill(wxCommandEvent& WXUNUSED(event)) { - long pid = wxGetNumberFromUser(_T("Please specify the process to kill"), - _T("Enter PID:"), - _T("Exec question"), + long pid = wxGetNumberFromUser(wxT("Please specify the process to kill"), + wxT("Enter PID:"), + wxT("Exec question"), m_pidLast, - 1, INT_MAX, + // we need the full unsigned int range + -INT_MAX, INT_MAX, this); if ( pid == -1 ) { @@ -382,34 +593,38 @@ void MyFrame::OnKill(wxCommandEvent& WXUNUSED(event)) return; } + m_pidLast = pid; + static const wxString signalNames[] = { - _T("Just test (SIGNONE)"), - _T("Hangup (SIGHUP)"), - _T("Interrupt (SIGINT)"), - _T("Quit (SIGQUIT)"), - _T("Illegal instruction (SIGILL)"), - _T("Trap (SIGTRAP)"), - _T("Abort (SIGABRT)"), - _T("Emulated trap (SIGEMT)"), - _T("FP exception (SIGFPE)"), - _T("Kill (SIGKILL)"), - _T("Bus (SIGBUS)"), - _T("Segment violation (SIGSEGV)"), - _T("System (SIGSYS)"), - _T("Broken pipe (SIGPIPE)"), - _T("Alarm (SIGALRM)"), - _T("Terminate (SIGTERM)"), + wxT("Just test (SIGNONE)"), + wxT("Hangup (SIGHUP)"), + wxT("Interrupt (SIGINT)"), + wxT("Quit (SIGQUIT)"), + wxT("Illegal instruction (SIGILL)"), + wxT("Trap (SIGTRAP)"), + wxT("Abort (SIGABRT)"), + wxT("Emulated trap (SIGEMT)"), + wxT("FP exception (SIGFPE)"), + wxT("Kill (SIGKILL)"), + wxT("Bus (SIGBUS)"), + wxT("Segment violation (SIGSEGV)"), + wxT("System (SIGSYS)"), + wxT("Broken pipe (SIGPIPE)"), + wxT("Alarm (SIGALRM)"), + wxT("Terminate (SIGTERM)"), }; - int sig = wxGetSingleChoiceIndex(_T("How to kill the process?"), - _T("Exec question"), + static int s_sigLast = wxSIGNONE; + int sig = wxGetSingleChoiceIndex(wxT("How to kill the process?"), + wxT("Exec question"), WXSIZEOF(signalNames), signalNames, + s_sigLast, this); switch ( sig ) { default: - wxFAIL_MSG( _T("unexpected return value") ); + wxFAIL_MSG( wxT("unexpected return value") ); // fall through case -1: @@ -435,80 +650,247 @@ void MyFrame::OnKill(wxCommandEvent& WXUNUSED(event)) break; } - if ( sig == 0 ) + s_sigLast = sig; + + if ( sig == wxSIGNONE ) { + // This simply calls Kill(wxSIGNONE) but using it is more convenient. if ( wxProcess::Exists(pid) ) - wxLogStatus(_T("Process %d is running."), pid); + { + wxLogStatus(wxT("Process %ld is running."), pid); + } else - wxLogStatus(_T("No process with pid = %d."), pid); + { + wxLogStatus(wxT("No process with pid = %ld."), pid); + } } else // not SIGNONE { wxKillError rc = wxProcess::Kill(pid, (wxSignal)sig); if ( rc == wxKILL_OK ) { - wxLogStatus(_T("Process %d killed with signal %d."), pid, sig); + wxLogStatus(wxT("Process %ld killed with signal %d."), pid, sig); } else { static const wxChar *errorText[] = { - _T(""), // no error - _T("signal not supported"), - _T("permission denied"), - _T("no such process"), - _T("unspecified error"), + wxT(""), // no error + wxT("signal not supported"), + wxT("permission denied"), + wxT("no such process"), + wxT("unspecified error"), }; - wxLogStatus(_T("Failed to kill process %d with signal %d: %s"), + wxLogStatus(wxT("Failed to kill process %ld with signal %d: %s"), pid, sig, errorText[rc]); } } } +// ---------------------------------------------------------------------------- +// execution options dialog +// ---------------------------------------------------------------------------- + +enum ExecQueryDialogID +{ + TEXT_EXECUTABLE, + TEXT_CWD, + TEXT_ENVIRONMENT +}; + +class ExecQueryDialog : public wxDialog +{ +public: + ExecQueryDialog(const wxString& cmd); + + wxString GetExecutable() const + { + return m_executable->GetValue(); + } + + wxString GetWorkDir() const + { + return m_useCWD->GetValue() ? m_cwdtext->GetValue() : wxString(); + } + + void GetEnvironment(wxEnvVariableHashMap& env); + +private: + void OnUpdateWorkingDirectoryUI(wxUpdateUIEvent& event) + { + event.Enable(m_useCWD->GetValue()); + } + + void OnUpdateEnvironmentUI(wxUpdateUIEvent& event) + { + event.Enable(m_useEnv->GetValue()); + } + + wxTextCtrl* m_executable; + wxTextCtrl* m_cwdtext; + wxTextCtrl* m_envtext; + wxCheckBox* m_useCWD; + wxCheckBox* m_useEnv; + + DECLARE_EVENT_TABLE() +}; + +BEGIN_EVENT_TABLE(ExecQueryDialog, wxDialog) + EVT_UPDATE_UI(TEXT_CWD, ExecQueryDialog::OnUpdateWorkingDirectoryUI) + EVT_UPDATE_UI(TEXT_ENVIRONMENT, ExecQueryDialog::OnUpdateEnvironmentUI) +END_EVENT_TABLE() + +ExecQueryDialog::ExecQueryDialog(const wxString& cmd) + : wxDialog(NULL, wxID_ANY, DIALOG_TITLE, + wxDefaultPosition, wxDefaultSize, + wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER) +{ + wxSizer* globalSizer = new wxBoxSizer(wxVERTICAL); + + m_executable = new wxTextCtrl(this, TEXT_EXECUTABLE, wxString()); + m_cwdtext = new wxTextCtrl(this, TEXT_CWD, wxString()); + m_envtext = new wxTextCtrl(this, TEXT_ENVIRONMENT, wxString(), + wxDefaultPosition, wxSize(300, 200), + wxTE_MULTILINE|wxHSCROLL); + + const wxSizerFlags flagsExpand = wxSizerFlags().Expand().Border(); + globalSizer->Add(new wxStaticText(this, wxID_ANY, "Enter the command: "), + flagsExpand); + globalSizer->Add(m_executable, flagsExpand); + + m_useCWD = new wxCheckBox(this, wxID_ANY, "Working directory: "); + globalSizer->Add(m_useCWD, flagsExpand); + globalSizer->Add(m_cwdtext, flagsExpand); + + m_useEnv = new wxCheckBox(this, wxID_ANY, "Environment: "); + globalSizer->Add(m_useEnv, flagsExpand); + globalSizer->Add(m_envtext, wxSizerFlags(flagsExpand).Proportion(1)); + + globalSizer->Add(CreateStdDialogButtonSizer(wxOK|wxCANCEL), flagsExpand); + SetSizerAndFit(globalSizer); + + + m_executable->SetValue(cmd); + m_cwdtext->SetValue(wxGetCwd()); + wxEnvVariableHashMap env; + if ( wxGetEnvMap(&env) ) + { + for ( wxEnvVariableHashMap::iterator it = env.begin(); + it != env.end(); + ++it ) + { + m_envtext->AppendText(it->first + '=' + it->second + '\n'); + } + } + m_useCWD->SetValue(false); + m_useEnv->SetValue(false); +} + +void ExecQueryDialog::GetEnvironment(wxEnvVariableHashMap& env) +{ + env.clear(); + if ( m_useEnv->GetValue() ) + { + wxString name, + value; + + const int nb = m_envtext->GetNumberOfLines(); + for ( int l = 0; l < nb; l++ ) + { + const wxString line = m_envtext->GetLineText(l).Trim(); + + if ( !line.empty() ) + { + name = line.BeforeFirst('=', &value); + if ( name.empty() ) + { + wxLogWarning("Skipping invalid environment line \"%s\".", line); + continue; + } + + env[name] = value; + } + } + } +} + +static bool QueryExec(wxString& cmd, wxExecuteEnv& env) +{ + ExecQueryDialog dialog(cmd); + + if ( dialog.ShowModal() != wxID_OK ) + return false; + + cmd = dialog.GetExecutable(); + env.cwd = dialog.GetWorkDir(); + dialog.GetEnvironment(env.env); + + return true; +} + // ---------------------------------------------------------------------------- // event handlers: exec menu // ---------------------------------------------------------------------------- +int MyFrame::GetExecFlags() const +{ + wxMenuBar* const mbar = GetMenuBar(); + + int flags = 0; + + if ( mbar->IsChecked(Exec_Flags_HideConsole) ) + flags |= wxEXEC_HIDE_CONSOLE; + if ( mbar->IsChecked(Exec_Flags_ShowConsole) ) + flags |= wxEXEC_SHOW_CONSOLE; + if ( mbar->IsChecked(Exec_Flags_NoEvents) ) + flags |= wxEXEC_NOEVENTS; + + return flags; +} + void MyFrame::DoAsyncExec(const wxString& cmd) { - wxProcess *process = new MyProcess(this, cmd); - m_pidLast = wxExecute(cmd, FALSE /* async */, process); + MyProcess * const process = new MyProcess(this, cmd); + m_pidLast = wxExecute(cmd, wxEXEC_ASYNC | GetExecFlags(), process); if ( !m_pidLast ) { - wxLogError(_T("Execution of '%s' failed."), cmd.c_str()); + wxLogError(wxT("Execution of '%s' failed."), cmd.c_str()); delete process; } else { - wxLogStatus(_T("Process %ld (%s) launched."), m_pidLast, cmd.c_str()); + wxLogStatus(wxT("Process %ld (%s) launched."), m_pidLast, cmd.c_str()); m_cmdLast = cmd; + + // the parent frame keeps track of all async processes as it needs to + // free them if we exit before the child process terminates + AddAsyncProcess(process); } } void MyFrame::OnSyncExec(wxCommandEvent& WXUNUSED(event)) { - wxString cmd = wxGetTextFromUser(_T("Enter the command: "), - DIALOG_TITLE, - m_cmdLast); - - if ( !cmd ) + wxString cmd; + wxExecuteEnv env; + if ( !QueryExec(cmd, env) ) return; - wxLogStatus(_T("'%s' is running please wait..."), cmd.c_str()); + wxLogStatus( wxT("'%s' is running please wait..."), cmd.c_str() ); - int code = wxExecute(cmd, TRUE /* sync */); + int code = wxExecute(cmd, wxEXEC_SYNC | GetExecFlags(), NULL, &env); + + wxLogStatus(wxT("Process '%s' terminated with exit code %d."), + cmd.c_str(), code); - wxLogStatus(_T("Process '%s' terminated with exit code %d."), - cmd.c_str(), code); m_cmdLast = cmd; } void MyFrame::OnAsyncExec(wxCommandEvent& WXUNUSED(event)) { - wxString cmd = wxGetTextFromUser(_T("Enter the command: "), + wxString cmd = wxGetTextFromUser(wxT("Enter the command: "), DIALOG_TITLE, m_cmdLast); @@ -520,7 +902,7 @@ void MyFrame::OnAsyncExec(wxCommandEvent& WXUNUSED(event)) void MyFrame::OnShell(wxCommandEvent& WXUNUSED(event)) { - wxString cmd = wxGetTextFromUser(_T("Enter the command: "), + wxString cmd = wxGetTextFromUser(wxT("Enter the command: "), DIALOG_TITLE, m_cmdLast); @@ -528,14 +910,23 @@ void MyFrame::OnShell(wxCommandEvent& WXUNUSED(event)) return; int code = wxShell(cmd); - wxLogStatus(_T("Shell command '%s' terminated with exit code %d."), + wxLogStatus(wxT("Shell command '%s' terminated with exit code %d."), cmd.c_str(), code); m_cmdLast = cmd; } void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event)) { - wxString cmd = wxGetTextFromUser(_T("Enter the command: "), + if ( !m_cmdLast ) + { +#ifdef __WXMSW__ + m_cmdLast = "type Makefile.in"; +#else + m_cmdLast = "cat -n Makefile"; +#endif + } + + wxString cmd = wxGetTextFromUser(wxT("Enter the command: "), DIALOG_TITLE, m_cmdLast); @@ -543,16 +934,16 @@ void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event)) return; bool sync; - switch ( wxMessageBox(_T("Execute it synchronously?"), - _T("Exec question"), + switch ( wxMessageBox(wxT("Execute it synchronously?"), + wxT("Exec question"), wxYES_NO | wxCANCEL | wxICON_QUESTION, this) ) { case wxYES: - sync = TRUE; + sync = true; break; case wxNO: - sync = FALSE; + sync = false; break; default: @@ -561,29 +952,34 @@ void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event)) if ( sync ) { + wxLogStatus("\"%s\" is running please wait...", cmd); + + wxStopWatch sw; + wxArrayString output, errors; int code = wxExecute(cmd, output, errors); - wxLogStatus(_T("command '%s' terminated with exit code %d."), - cmd.c_str(), code); + + wxLogStatus("Command \"%s\" terminated after %ldms; exit code %d.", + cmd, sw.Time(), code); if ( code != -1 ) { - ShowOutput(cmd, output, _T("Output")); - ShowOutput(cmd, errors, _T("Errors")); + ShowOutput(cmd, output, wxT("Output")); + ShowOutput(cmd, errors, wxT("Errors")); } } else // async exec { MyPipedProcess *process = new MyPipedProcess(this, cmd); - if ( !wxExecute(cmd, FALSE /* async */, process) ) + if ( !wxExecute(cmd, wxEXEC_ASYNC, process) ) { - wxLogError(_T("Execution of '%s' failed."), cmd.c_str()); + wxLogError(wxT("Execution of '%s' failed."), cmd.c_str()); delete process; } else { - m_running.Add(process); + AddPipedProcess(process); } } @@ -593,32 +989,32 @@ void MyFrame::OnExecWithRedirect(wxCommandEvent& WXUNUSED(event)) void MyFrame::OnExecWithPipe(wxCommandEvent& WXUNUSED(event)) { if ( !m_cmdLast ) - m_cmdLast = _T("tr [a-z] [A-Z]"); + m_cmdLast = wxT("tr [a-z] [A-Z]"); - wxString cmd = wxGetTextFromUser(_T("Enter the command: "), + wxString cmd = wxGetTextFromUser(wxT("Enter the command: "), DIALOG_TITLE, m_cmdLast); if ( !cmd ) return; - wxString input = wxGetTextFromUser(_T("Enter the string to send to it: "), + wxString input = wxGetTextFromUser(wxT("Enter the string to send to it: "), DIALOG_TITLE); if ( !input ) return; // always execute the filter asynchronously MyPipedProcess2 *process = new MyPipedProcess2(this, cmd, input); - int pid = wxExecute(cmd, FALSE /* async */, process); + long pid = wxExecute(cmd, wxEXEC_ASYNC, process); if ( pid ) { - wxLogStatus(_T("Process %ld (%s) launched."), pid, cmd.c_str()); + wxLogStatus(wxT("Process %ld (%s) launched."), pid, cmd.c_str()); - m_running.Add(process); + AddPipedProcess(process); } else { - wxLogError(_T("Execution of '%s' failed."), cmd.c_str()); + wxLogError(wxT("Execution of '%s' failed."), cmd.c_str()); delete process; } @@ -626,32 +1022,82 @@ void MyFrame::OnExecWithPipe(wxCommandEvent& WXUNUSED(event)) m_cmdLast = cmd; } -void MyFrame::OnFileExec(wxCommandEvent& event) +void MyFrame::OnPOpen(wxCommandEvent& WXUNUSED(event)) { - static wxString s_filename; + wxString cmd = wxGetTextFromUser(wxT("Enter the command to launch: "), + DIALOG_TITLE, + m_cmdLast); + if ( cmd.empty() ) + return; + + wxProcess *process = wxProcess::Open(cmd); + if ( !process ) + { + wxLogError(wxT("Failed to launch the command.")); + return; + } + + wxLogVerbose(wxT("PID of the new process: %ld"), process->GetPid()); - wxString filename = wxLoadFileSelector(_T("file"), _T(""), s_filename); - if ( !filename ) + wxOutputStream *out = process->GetOutputStream(); + if ( !out ) + { + wxLogError(wxT("Failed to connect to child stdin")); return; + } + + wxInputStream *in = process->GetInputStream(); + if ( !in ) + { + wxLogError(wxT("Failed to connect to child stdout")); + return; + } + + new MyPipeFrame(this, cmd, process); +} + +static wxString gs_lastFile; + +static bool AskUserForFileName() +{ + wxString filename; + +#if wxUSE_FILEDLG + filename = wxLoadFileSelector(wxT("any"), wxEmptyString, gs_lastFile); +#else // !wxUSE_FILEDLG + filename = wxGetTextFromUser(wxT("Enter the file name"), wxT("exec sample"), + gs_lastFile); +#endif // wxUSE_FILEDLG/!wxUSE_FILEDLG - s_filename = filename; + if ( filename.empty() ) + return false; - wxString ext = filename.AfterFirst(_T('.')); + gs_lastFile = filename; + + return true; +} + +void MyFrame::OnFileExec(wxCommandEvent& WXUNUSED(event)) +{ + if ( !AskUserForFileName() ) + return; + + wxString ext = gs_lastFile.AfterLast(wxT('.')); wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(ext); if ( !ft ) { - wxLogError(_T("Impossible to determine the file type for extension '%s'"), + wxLogError(wxT("Impossible to determine the file type for extension '%s'"), ext.c_str()); return; } wxString cmd; bool ok = ft->GetOpenCommand(&cmd, - wxFileType::MessageParameters(filename, _T(""))); + wxFileType::MessageParameters(gs_lastFile)); delete ft; if ( !ok ) { - wxLogError(_T("Impossible to find out how to open files of extension '%s'"), + wxLogError(wxT("Impossible to find out how to open files of extension '%s'"), ext.c_str()); return; } @@ -659,6 +1105,75 @@ void MyFrame::OnFileExec(wxCommandEvent& event) DoAsyncExec(cmd); } +void MyFrame::OnShowCommandForExt(wxCommandEvent& WXUNUSED(event)) +{ + static wxString s_ext; + + wxString ext = wxGetTextFromUser + ( + "Enter the extension without leading dot", + "Exec sample", + s_ext, + this + ); + if ( ext.empty() ) + return; + + s_ext = ext; + + wxScopedPtr + ft(wxTheMimeTypesManager->GetFileTypeFromExtension(ext)); + if ( !ft ) + { + wxLogError("Information for extension \"%s\" not found", ext); + return; + } + + const wxString cmd = ft->GetOpenCommand("file." + ext); + if ( cmd.empty() ) + { + wxLogWarning("Open command for extension \"%s\" not defined.", ext); + return; + } + + wxLogMessage("Open command for files of extension \"%s\" is\n%s", + ext, cmd); +} + +void MyFrame::OnFileLaunch(wxCommandEvent& WXUNUSED(event)) +{ + if ( !AskUserForFileName() ) + return; + + if ( !wxLaunchDefaultApplication(gs_lastFile) ) + { + wxLogError("Opening \"%s\" in default application failed.", gs_lastFile); + } +} + +void MyFrame::OnOpenURL(wxCommandEvent& WXUNUSED(event)) +{ + static wxString s_url(wxT("http://www.wxwidgets.org/")); + + wxString filename = wxGetTextFromUser + ( + wxT("Enter the URL"), + wxT("exec sample"), + s_url, + this + ); + + if ( filename.empty() ) + return; + + s_url = filename; + + if ( !wxLaunchDefaultBrowser(s_url) ) + { + wxLogError(wxT("Failed to open URL \"%s\""), s_url.c_str()); + } +} + // ---------------------------------------------------------------------------- // DDE stuff // ---------------------------------------------------------------------------- @@ -667,26 +1182,26 @@ void MyFrame::OnFileExec(wxCommandEvent& event) bool MyFrame::GetDDEServer() { - wxString server = wxGetTextFromUser(_T("Server to connect to:"), + wxString server = wxGetTextFromUser(wxT("Server to connect to:"), DIALOG_TITLE, m_server); if ( !server ) - return FALSE; + return false; m_server = server; - wxString topic = wxGetTextFromUser(_T("DDE topic:"), DIALOG_TITLE, m_topic); + wxString topic = wxGetTextFromUser(wxT("DDE topic:"), DIALOG_TITLE, m_topic); if ( !topic ) - return FALSE; + return false; m_topic = topic; - wxString cmd = wxGetTextFromUser(_T("DDE command:"), DIALOG_TITLE, m_cmdDde); + wxString cmd = wxGetTextFromUser(wxT("DDE command:"), DIALOG_TITLE, m_cmdDde); if ( !cmd ) - return FALSE; + return false; m_cmdDde = cmd; - return TRUE; + return true; } void MyFrame::OnDDEExec(wxCommandEvent& WXUNUSED(event)) @@ -695,22 +1210,22 @@ void MyFrame::OnDDEExec(wxCommandEvent& WXUNUSED(event)) return; wxDDEClient client; - wxConnectionBase *conn = client.MakeConnection("", m_server, m_topic); + wxConnectionBase *conn = client.MakeConnection(wxEmptyString, m_server, m_topic); if ( !conn ) { - wxLogError(_T("Failed to connect to the DDE server '%s'."), + wxLogError(wxT("Failed to connect to the DDE server '%s'."), m_server.c_str()); } else { if ( !conn->Execute(m_cmdDde) ) { - wxLogError(_T("Failed to execute command '%s' via DDE."), + wxLogError(wxT("Failed to execute command '%s' via DDE."), m_cmdDde.c_str()); } else { - wxLogStatus(_T("Successfully executed DDE command")); + wxLogStatus(wxT("Successfully executed DDE command")); } } } @@ -721,22 +1236,22 @@ void MyFrame::OnDDERequest(wxCommandEvent& WXUNUSED(event)) return; wxDDEClient client; - wxConnectionBase *conn = client.MakeConnection("", m_server, m_topic); + wxConnectionBase *conn = client.MakeConnection(wxEmptyString, m_server, m_topic); if ( !conn ) { - wxLogError(_T("Failed to connect to the DDE server '%s'."), + wxLogError(wxT("Failed to connect to the DDE server '%s'."), m_server.c_str()); } else { if ( !conn->Request(m_cmdDde) ) { - wxLogError(_T("Failed to send request '%s' via DDE."), + wxLogError(wxT("Failed to send request '%s' via DDE."), m_cmdDde.c_str()); } else { - wxLogStatus(_T("Successfully sent DDE request.")); + wxLogStatus(wxT("Successfully sent DDE request.")); } } } @@ -760,11 +1275,54 @@ void MyFrame::OnIdle(wxIdleEvent& event) } } +void MyFrame::OnIdleTimer(wxTimerEvent& WXUNUSED(event)) +{ + wxWakeUpIdle(); +} + +void MyFrame::OnBgTimer(wxTimerEvent& WXUNUSED(event)) +{ + static unsigned long s_ticks = 0; + SetStatusText(wxString::Format("%lu ticks", s_ticks++), 1); +} + void MyFrame::OnProcessTerminated(MyPipedProcess *process) { - m_running.Remove(process); + RemovePipedProcess(process); } +void MyFrame::OnAsyncTermination(MyProcess *process) +{ + m_allAsync.Remove(process); + + delete process; +} + +void MyFrame::AddPipedProcess(MyPipedProcess *process) +{ + if ( m_running.IsEmpty() ) + { + // we want to start getting the timer events to ensure that a + // steady stream of idle events comes in -- otherwise we + // wouldn't be able to poll the child process input + m_timerIdleWakeUp.Start(100); + } + //else: the timer is already running + + m_running.Add(process); + m_allAsync.Add(process); +} + +void MyFrame::RemovePipedProcess(MyPipedProcess *process) +{ + m_running.Remove(process); + + if ( m_running.IsEmpty() ) + { + // we don't need to get idle events all the time any more + m_timerIdleWakeUp.Stop(); + } +} void MyFrame::ShowOutput(const wxString& cmd, const wxArrayString& output, @@ -774,7 +1332,7 @@ void MyFrame::ShowOutput(const wxString& cmd, if ( !count ) return; - m_lbox->Append(wxString::Format(_T("--- %s of '%s' ---"), + m_lbox->Append(wxString::Format(wxT("--- %s of '%s' ---"), title.c_str(), cmd.c_str())); for ( size_t n = 0; n < count; n++ ) @@ -782,7 +1340,8 @@ void MyFrame::ShowOutput(const wxString& cmd, m_lbox->Append(output[n]); } - m_lbox->Append(_T("--- End of output ---")); + m_lbox->Append(wxString::Format(wxT("--- End of %s ---"), + title.Lower().c_str())); } // ---------------------------------------------------------------------------- @@ -791,11 +1350,10 @@ void MyFrame::ShowOutput(const wxString& cmd, void MyProcess::OnTerminate(int pid, int status) { - wxLogStatus(m_parent, _T("Process %u ('%s') terminated with exit code %d."), + wxLogStatus(m_parent, wxT("Process %u ('%s') terminated with exit code %d."), pid, m_cmd.c_str(), status); - // we're not needed any more - delete this; + m_parent->OnAsyncTermination(this); } // ---------------------------------------------------------------------------- @@ -804,34 +1362,32 @@ void MyProcess::OnTerminate(int pid, int status) bool MyPipedProcess::HasInput() { - bool hasInput = FALSE; + bool hasInput = false; - wxInputStream& is = *GetInputStream(); - if ( !is.Eof() ) + if ( IsInputAvailable() ) { - wxTextInputStream tis(is); + wxTextInputStream tis(*GetInputStream()); // this assumes that the output is always line buffered wxString msg; - msg << m_cmd << _T(" (stdout): ") << tis.ReadLine(); + msg << m_cmd << wxT(" (stdout): ") << tis.ReadLine(); m_parent->GetLogListBox()->Append(msg); - hasInput = TRUE; + hasInput = true; } - wxInputStream& es = *GetErrorStream(); - if ( !es.Eof() ) + if ( IsErrorAvailable() ) { - wxTextInputStream tis(es); + wxTextInputStream tis(*GetErrorStream()); // this assumes that the output is always line buffered wxString msg; - msg << m_cmd << _T(" (stderr): ") << tis.ReadLine(); + msg << m_cmd << wxT(" (stderr): ") << tis.ReadLine(); m_parent->GetLogListBox()->Append(msg); - hasInput = TRUE; + hasInput = true; } return hasInput; @@ -854,7 +1410,7 @@ void MyPipedProcess::OnTerminate(int pid, int status) bool MyPipedProcess2::HasInput() { - if ( !!m_input ) + if ( !m_input.empty() ) { wxTextOutputStream os(*GetOutputStream()); os.WriteString(m_input); @@ -863,8 +1419,161 @@ bool MyPipedProcess2::HasInput() m_input.clear(); // call us once again - may be we'll have output - return TRUE; + return true; } return MyPipedProcess::HasInput(); } + +// ============================================================================ +// MyPipeFrame implementation +// ============================================================================ + +MyPipeFrame::MyPipeFrame(wxFrame *parent, + const wxString& cmd, + wxProcess *process) + : wxFrame(parent, wxID_ANY, cmd), + m_process(process), + // in a real program we'd check that the streams are !NULL here + m_out(*process->GetOutputStream()), + m_in(*process->GetInputStream()), + m_err(*process->GetErrorStream()) +{ + m_process->SetNextHandler(this); + + wxPanel *panel = new wxPanel(this, wxID_ANY); + + m_textOut = new wxTextCtrl(panel, wxID_ANY, wxEmptyString, + wxDefaultPosition, wxDefaultSize, + wxTE_PROCESS_ENTER); + m_textIn = new wxTextCtrl(panel, wxID_ANY, wxEmptyString, + wxDefaultPosition, wxDefaultSize, + wxTE_MULTILINE | wxTE_RICH); + m_textIn->SetEditable(false); + m_textErr = new wxTextCtrl(panel, wxID_ANY, wxEmptyString, + wxDefaultPosition, wxDefaultSize, + wxTE_MULTILINE | wxTE_RICH); + m_textErr->SetEditable(false); + + wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL); + sizerTop->Add(m_textOut, 0, wxGROW | wxALL, 5); + + wxSizer *sizerBtns = new wxBoxSizer(wxHORIZONTAL); + sizerBtns-> + Add(new wxButton(panel, Exec_Btn_Send, wxT("&Send")), 0, wxALL, 5); + sizerBtns-> + Add(new wxButton(panel, Exec_Btn_SendFile, wxT("&File...")), 0, wxALL, 5); + sizerBtns-> + Add(new wxButton(panel, Exec_Btn_Get, wxT("&Get")), 0, wxALL, 5); + sizerBtns-> + Add(new wxButton(panel, Exec_Btn_Close, wxT("&Close")), 0, wxALL, 5); + + sizerTop->Add(sizerBtns, 0, wxCENTRE | wxALL, 5); + sizerTop->Add(m_textIn, 1, wxGROW | wxALL, 5); + sizerTop->Add(m_textErr, 1, wxGROW | wxALL, 5); + + panel->SetSizer(sizerTop); + sizerTop->Fit(this); + + Show(); +} + +void MyPipeFrame::OnBtnSendFile(wxCommandEvent& WXUNUSED(event)) +{ +#if wxUSE_FILEDLG + wxFileDialog filedlg(this, wxT("Select file to send")); + if ( filedlg.ShowModal() != wxID_OK ) + return; + + wxFFile file(filedlg.GetFilename(), wxT("r")); + wxString data; + if ( !file.IsOpened() || !file.ReadAll(&data) ) + return; + + // can't write the entire string at once, this risk overflowing the pipe + // and we would dead lock + size_t len = data.length(); + const wxChar *pc = data.c_str(); + while ( len ) + { + const size_t CHUNK_SIZE = 4096; + m_out.Write(pc, len > CHUNK_SIZE ? CHUNK_SIZE : len); + + // note that not all data could have been written as we don't block on + // the write end of the pipe + const size_t lenChunk = m_out.LastWrite(); + + pc += lenChunk; + len -= lenChunk; + + DoGet(); + } +#endif // wxUSE_FILEDLG +} + +void MyPipeFrame::DoGet() +{ + // we don't have any way to be notified when any input appears on the + // stream so we have to poll it :-( + DoGetFromStream(m_textIn, m_in); + DoGetFromStream(m_textErr, m_err); +} + +void MyPipeFrame::DoGetFromStream(wxTextCtrl *text, wxInputStream& in) +{ + while ( in.CanRead() ) + { + char buffer[4096]; + buffer[in.Read(buffer, WXSIZEOF(buffer) - 1).LastRead()] = '\0'; + + text->AppendText(buffer); + } +} + +void MyPipeFrame::DoClose() +{ + m_process->CloseOutput(); + + DisableInput(); +} + +void MyPipeFrame::DisableInput() +{ + m_textOut->SetEditable(false); + FindWindow(Exec_Btn_Send)->Disable(); + FindWindow(Exec_Btn_SendFile)->Disable(); + FindWindow(Exec_Btn_Close)->Disable(); +} + +void MyPipeFrame::DisableOutput() +{ + FindWindow(Exec_Btn_Get)->Disable(); +} + +void MyPipeFrame::OnClose(wxCloseEvent& event) +{ + if ( m_process ) + { + // we're not interested in getting the process termination notification + // if we are closing it ourselves + wxProcess *process = m_process; + m_process = NULL; + process->SetNextHandler(NULL); + + process->CloseOutput(); + } + + event.Skip(); +} + +void MyPipeFrame::OnProcessTerm(wxProcessEvent& WXUNUSED(event)) +{ + DoGet(); + + wxDELETE(m_process); + + wxLogWarning(wxT("The other process has terminated, closing")); + + DisableInput(); + DisableOutput(); +}