// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(__APPLE__)
- #pragma implementation "exec.cpp"
- #pragma interface "exec.cpp"
-#endif
-
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#include "wx/txtstrm.h"
#include "wx/numdlg.h"
+#include "wx/textdlg.h"
+#include "wx/ffile.h"
#include "wx/process.h"
// Define an array of process pointers used by MyFrame
class MyPipedProcess;
-WX_DEFINE_ARRAY_PTR(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);
void OnClear(wxCommandEvent& event);
+ void OnBeginBusyCursor(wxCommandEvent& event);
+ void OnEndBusyCursor(wxCommandEvent& event);
+
void OnSyncExec(wxCommandEvent& event);
+ void OnSyncNoEventsExec(wxCommandEvent& event);
void OnAsyncExec(wxCommandEvent& event);
void OnShell(wxCommandEvent& event);
void OnExecWithRedirect(wxCommandEvent& event);
void OnPOpen(wxCommandEvent& event);
void OnFileExec(wxCommandEvent& event);
+ void OnOpenURL(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnProcessTerminated(MyPipedProcess *process);
wxListBox *GetLogListBox() const { return m_lbox; }
+ // for MyProcess
+ void OnAsyncTermination(MyProcess *process);
+
private:
void ShowOutput(const wxString& cmd,
const wxArrayString& output,
void DoAsyncExec(const wxString& cmd);
- void AddAsyncProcess(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
+ void AddAsyncProcess(MyProcess *process) { m_allAsync.push_back(process); }
- m_running.Add(process);
- }
+ void AddPipedProcess(MyPipedProcess *process);
+ void RemovePipedProcess(MyPipedProcess *process);
- void RemoveAsyncProcess(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();
- }
- }
// the PID of the last process we launched asynchronously
long m_pidLast;
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;
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 DoSend()
{
- m_out.WriteString(m_textIn->GetValue() + _T('\n'));
- m_textIn->Clear();
+ wxString s(m_textOut->GetValue());
+ s += _T('\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;
- wxTextInputStream m_in;
- wxTextOutputStream m_out;
+ wxOutputStream &m_out;
+ wxInputStream &m_in,
+ &m_err;
- wxTextCtrl *m_textIn,
- *m_textOut;
+ wxTextCtrl *m_textOut,
+ *m_textIn,
+ *m_textErr;
DECLARE_EVENT_TABLE()
};
Exec_Quit = 100,
Exec_Kill,
Exec_ClearLog,
+ Exec_BeginBusyCursor,
+ Exec_EndBusyCursor,
Exec_SyncExec = 200,
+ Exec_SyncNoEventsExec,
Exec_AsyncExec,
Exec_Shell,
Exec_POpen,
Exec_OpenFile,
+ Exec_OpenURL,
Exec_DDEExec,
Exec_DDERequest,
Exec_Redirect,
// control ids
Exec_Btn_Send = 1000,
- Exec_Btn_Get
+ Exec_Btn_SendFile,
+ Exec_Btn_Get,
+ Exec_Btn_Close
};
static const wxChar *DIALOG_TITLE = _T("Exec sample");
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_SyncNoEventsExec, MyFrame::OnSyncNoEventsExec)
EVT_MENU(Exec_AsyncExec, MyFrame::OnAsyncExec)
EVT_MENU(Exec_Shell, MyFrame::OnShell)
EVT_MENU(Exec_Redirect, MyFrame::OnExecWithRedirect)
EVT_MENU(Exec_POpen, MyFrame::OnPOpen)
EVT_MENU(Exec_OpenFile, MyFrame::OnFileExec)
+ EVT_MENU(Exec_OpenURL, MyFrame::OnOpenURL)
#ifdef __WINDOWS__
EVT_MENU(Exec_DDEExec, MyFrame::OnDDEExec)
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)
// `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 wxWidgets sample"),
wxDefaultPosition, wxSize(500, 140));
#endif
// create a menu bar
- wxMenu *menuFile = new wxMenu(_T(""), wxMENU_TEAROFF);
+ wxMenu *menuFile = new wxMenu(wxEmptyString, wxMENU_TEAROFF);
menuFile->Append(Exec_Kill, _T("&Kill process...\tCtrl-K"),
_T("Kill a process by PID"));
menuFile->AppendSeparator();
- menuFile->Append(Exec_ClearLog, _T("&Clear log\tCtrl-C"),
+ menuFile->Append(Exec_ClearLog, _T("&Clear log\tCtrl-L"),
_T("Clear the log window"));
menuFile->AppendSeparator();
+ menuFile->Append(Exec_BeginBusyCursor, _T("Show &busy cursor\tCtrl-C"));
+ menuFile->Append(Exec_EndBusyCursor, _T("Show &normal cursor\tShift-Ctrl-C"));
+ menuFile->AppendSeparator();
menuFile->Append(Exec_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
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_SyncNoEventsExec, _T("Sync execution and &block...\tCtrl-B"),
+ _T("Launch a program and block until 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"),
execMenu->AppendSeparator();
execMenu->Append(Exec_OpenFile, _T("Open &file...\tCtrl-F"),
_T("Launch the command to open this kind of files"));
+ execMenu->Append(Exec_OpenURL, _T("Open &URL...\tCtrl-U"),
+ _T("Launch the default browser with the given URL"));
#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"));
#endif
- wxMenu *helpMenu = new wxMenu(_T(""), wxMENU_TEAROFF);
+ wxMenu *helpMenu = new wxMenu(wxEmptyString, wxMENU_TEAROFF);
helpMenu->Append(Exec_About, _T("&About...\tF1"), _T("Show about dialog"));
// now append the freshly created menu to the menu bar...
#endif // wxUSE_STATUSBAR
}
+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];
+ }
+}
+
// ----------------------------------------------------------------------------
// event handlers: file and help menu
// ----------------------------------------------------------------------------
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 wxWidgets Sample\n© 2000-2002 Vadim Zeitlin"),
+ wxMessageBox(_T("Exec wxWidgets Sample\n(c) 2000-2002 Vadim Zeitlin"),
_T("About Exec"), wxOK | wxICON_INFORMATION, this);
}
void MyFrame::DoAsyncExec(const wxString& cmd)
{
- wxProcess *process = new MyProcess(this, cmd);
+ MyProcess * const process = new MyProcess(this, cmd);
m_pidLast = wxExecute(cmd, wxEXEC_ASYNC, process);
if ( !m_pidLast )
{
- wxLogError( _T("Execution of '%s' failed."), cmd.c_str() );
+ wxLogError(_T("Execution of '%s' failed."), cmd.c_str());
delete process;
}
else
{
- wxLogStatus( _T("Process %ld (%s) launched."),
- m_pidLast, cmd.c_str() );
+ wxLogStatus(_T("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);
}
}
m_cmdLast = cmd;
}
+void MyFrame::OnSyncNoEventsExec(wxCommandEvent& WXUNUSED(event))
+{
+ wxString cmd = wxGetTextFromUser(_T("Enter the command: "),
+ DIALOG_TITLE,
+ m_cmdLast);
+
+ if ( !cmd )
+ return;
+
+ wxLogStatus( _T("'%s' is running please wait..."), cmd.c_str() );
+
+ int code = wxExecute(cmd, wxEXEC_BLOCK);
+
+ 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: "),
if ( sync )
{
+ wxLogStatus( _T("'%s' is running please wait..."), cmd.c_str() );
+
wxArrayString output, errors;
int code = wxExecute(cmd, output, errors);
- wxLogStatus(_T("command '%s' terminated with exit code %d."),
+
+ wxLogStatus(_T("Command '%s' terminated with exit code %d."),
cmd.c_str(), code);
if ( code != -1 )
}
else
{
- AddAsyncProcess(process);
+ AddPipedProcess(process);
}
}
long pid = wxExecute(cmd, wxEXEC_ASYNC, process);
if ( pid )
{
- wxLogStatus( _T("Process %ld (%s) launched."), pid, cmd.c_str() );
+ wxLogStatus(_T("Process %ld (%s) launched."), pid, cmd.c_str());
- AddAsyncProcess(process);
+ AddPipedProcess(process);
}
else
{
return;
}
+ wxLogVerbose(_T("PID of the new process: %ld"), process->GetPid());
+
wxOutputStream *out = process->GetOutputStream();
if ( !out )
{
{
static wxString s_filename;
- wxString filename = wxLoadFileSelector(_T(""), _T(""), s_filename);
- if ( !filename )
+ wxString filename;
+
+#if wxUSE_FILEDLG
+ filename = wxLoadFileSelector(_T("any file"), wxEmptyString, s_filename, this);
+#else // !wxUSE_FILEDLG
+ filename = wxGetTextFromUser(_T("Enter the file name"), _T("exec sample"),
+ s_filename, this);
+#endif // wxUSE_FILEDLG/!wxUSE_FILEDLG
+
+ if ( filename.empty() )
return;
s_filename = filename;
wxString cmd;
bool ok = ft->GetOpenCommand(&cmd,
- wxFileType::MessageParameters(filename, _T("")));
+ wxFileType::MessageParameters(filename));
delete ft;
if ( !ok )
{
DoAsyncExec(cmd);
}
+void MyFrame::OnOpenURL(wxCommandEvent& WXUNUSED(event))
+{
+ static wxString s_filename(_T("http://www.wxwidgets.org/"));
+
+ wxString filename = wxGetTextFromUser
+ (
+ _T("Enter the URL"),
+ _T("exec sample"),
+ s_filename,
+ this
+ );
+
+ if ( filename.empty() )
+ return;
+
+ s_filename = filename;
+
+ if ( !wxLaunchDefaultBrowser(s_filename) )
+ wxLogError(_T("Failed to open URL \"%s\""), s_filename.c_str());
+}
+
// ----------------------------------------------------------------------------
// DDE stuff
// ----------------------------------------------------------------------------
return;
wxDDEClient client;
- wxConnectionBase *conn = client.MakeConnection(_T(""), 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'."),
return;
wxDDEClient client;
- wxConnectionBase *conn = client.MakeConnection(_T(""), 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'."),
void MyFrame::OnProcessTerminated(MyPipedProcess *process)
{
- RemoveAsyncProcess(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,
wxLogStatus(m_parent, _T("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);
}
// ----------------------------------------------------------------------------
bool MyPipedProcess2::HasInput()
{
- if ( !!m_input )
+ if ( !m_input.empty() )
{
wxTextOutputStream os(*GetOutputStream());
os.WriteString(m_input);
: 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_out(*process->GetOutputStream())
+ m_err(*process->GetErrorStream())
{
m_process->SetNextHandler(this);
wxPanel *panel = new wxPanel(this, wxID_ANY);
- m_textIn = new wxTextCtrl(panel, wxID_ANY, _T(""),
+ m_textOut = new wxTextCtrl(panel, wxID_ANY, wxEmptyString,
wxDefaultPosition, wxDefaultSize,
wxTE_PROCESS_ENTER);
- m_textOut = new wxTextCtrl(panel, wxID_ANY, _T(""));
- m_textOut->SetEditable(false);
+ 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_textIn, 0, wxGROW | wxALL, 5);
+ sizerTop->Add(m_textOut, 0, wxGROW | wxALL, 5);
wxSizer *sizerBtns = new wxBoxSizer(wxHORIZONTAL);
- sizerBtns->Add(new wxButton(panel, Exec_Btn_Send, _T("&Send")), 0,
- wxALL, 10);
- sizerBtns->Add(new wxButton(panel, Exec_Btn_Get, _T("&Get")), 0,
- wxALL, 10);
+ sizerBtns->
+ Add(new wxButton(panel, Exec_Btn_Send, _T("&Send")), 0, wxALL, 5);
+ sizerBtns->
+ Add(new wxButton(panel, Exec_Btn_SendFile, _T("&File...")), 0, wxALL, 5);
+ sizerBtns->
+ Add(new wxButton(panel, Exec_Btn_Get, _T("&Get")), 0, wxALL, 5);
+ sizerBtns->
+ Add(new wxButton(panel, Exec_Btn_Close, _T("&Close")), 0, wxALL, 5);
sizerTop->Add(sizerBtns, 0, wxCENTRE | wxALL, 5);
- sizerTop->Add(m_textOut, 0, wxGROW | 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, _T("Select file to send"));
+ if ( filedlg.ShowModal() != wxID_OK )
+ return;
+
+ wxFFile file(filedlg.GetFilename(), _T("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 :-(
- //
- // NB: this really must be done because otherwise the other program might
- // not have enough time to receive or process our data and we'd read
- // an empty string
- while ( !m_process->IsInputAvailable() && m_process->IsInputOpened() )
- ;
+ DoGetFromStream(m_textIn, m_in);
+ DoGetFromStream(m_textErr, m_err);
+}
+
+void MyPipeFrame::DoGetFromStream(wxTextCtrl *text, wxInputStream& in)
+{
+ while ( in.CanRead() )
+ {
+ wxChar buffer[4096];
+ buffer[in.Read(buffer, WXSIZEOF(buffer) - 1).LastRead()] = _T('\0');
+
+ text->AppendText(buffer);
+ }
+}
+
+void MyPipeFrame::DoClose()
+{
+ m_process->CloseOutput();
+
+ DisableInput();
+}
- m_textOut->SetValue(m_in.ReadLine());
+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)
void MyPipeFrame::OnProcessTerm(wxProcessEvent& WXUNUSED(event))
{
+ DoGet();
+
delete m_process;
m_process = NULL;
wxLogWarning(_T("The other process has terminated, closing"));
- Close();
+ DisableInput();
+ DisableOutput();
}
projects / wxWidgets.git / blobdiff