X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2b5f62a0b2db198609b45dec622a018dae37008e..65a1f3509bd761f4e6a4873f80889ebf84bc1e4b:/src/msw/utilsexc.cpp diff --git a/src/msw/utilsexc.cpp b/src/msw/utilsexc.cpp index ae26542774..b969c899bf 100644 --- a/src/msw/utilsexc.cpp +++ b/src/msw/utilsexc.cpp @@ -6,7 +6,7 @@ // Created: 04/01/98 // RCS-ID: $Id$ // Copyright: (c) 1998-2002 wxWindows dev team -// Licence: wxWindows license +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -17,7 +17,7 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation #endif @@ -33,38 +33,39 @@ #include "wx/app.h" #include "wx/intl.h" #include "wx/log.h" - #if wxUSE_GUI // See 'dirty hack' below. - #include "wx/frame.h" - #endif #endif -#ifdef __WIN32__ - #include "wx/stream.h" - #include "wx/process.h" -#endif +#include "wx/stream.h" +#include "wx/process.h" + +#include "wx/apptrait.h" + +#include "wx/module.h" #include "wx/msw/private.h" #include -#if !defined(__GNUWIN32__) && !defined(__WXWINE__) && !defined(__SALFORDC__) && !defined(__WXMICROWIN__) +#if !defined(__GNUWIN32__) && !defined(__SALFORDC__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__) #include #ifndef __MWERKS__ #include #endif #endif -#if defined(__GNUWIN32__) && !defined(__TWIN32__) +#if defined(__GNUWIN32__) #include #include #endif -#if defined(__WIN32__) && !defined(__WXWINE__) && !defined(__WXMICROWIN__) -#include +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) + #ifndef __UNIX__ + #include + #endif -#ifndef __GNUWIN32__ -#include -#endif + #ifndef __GNUWIN32__ + #include + #endif #endif #include @@ -81,6 +82,10 @@ #include "wx/dde.h" // for WX_DDE hack in wxExecute #endif // wxUSE_IPC +// implemented in utils.cpp +extern "C" WXDLLIMPEXP_BASE HWND +wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc); + // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- @@ -95,6 +100,7 @@ // we need to create a hidden window to receive the process termination // notifications and for this we need a (Win) class name for it which we will // register the first time it's needed +static const wxChar *wxMSWEXEC_WNDCLASSNAME = wxT("_wxExecute_Internal_Class"); static const wxChar *gs_classForHiddenWindow = NULL; // ---------------------------------------------------------------------------- @@ -123,7 +129,28 @@ public: bool state; // set to FALSE when the process finishes }; -#if defined(__WIN32__) && wxUSE_STREAMS +class wxExecuteModule : public wxModule +{ +public: + virtual bool OnInit() { return true; } + virtual void OnExit() + { + if ( *gs_classForHiddenWindow ) + { + if ( !::UnregisterClass(wxMSWEXEC_WNDCLASSNAME, wxGetInstance()) ) + { + wxLogLastError(_T("UnregisterClass(wxExecClass)")); + } + + gs_classForHiddenWindow = NULL; + } + } + +private: + DECLARE_DYNAMIC_CLASS(wxExecuteModule) +}; + +#if wxUSE_STREAMS && !defined(__WXWINCE__) // ---------------------------------------------------------------------------- // wxPipeStreams @@ -146,6 +173,8 @@ protected: protected: HANDLE m_hInput; + + DECLARE_NO_COPY_CLASS(wxPipeInputStream) }; class wxPipeOutputStream: public wxOutputStream @@ -159,6 +188,8 @@ protected: protected: HANDLE m_hOutput; + + DECLARE_NO_COPY_CLASS(wxPipeOutputStream) }; // define this to let wxexec.cpp know that we know what we're doing @@ -253,8 +284,6 @@ private: // implementation // ============================================================================ -#ifdef __WIN32__ - // ---------------------------------------------------------------------------- // process termination detecting support // ---------------------------------------------------------------------------- @@ -324,7 +353,7 @@ LRESULT APIENTRY _EXPORT wxExecuteWindowCbk(HWND hWnd, UINT message, // implementation of IO redirection support classes // ============================================================================ -#if wxUSE_STREAMS +#if wxUSE_STREAMS && !defined(__WXWINCE__) // ---------------------------------------------------------------------------- // wxPipeInputStreams @@ -343,10 +372,6 @@ wxPipeInputStream::~wxPipeInputStream() bool wxPipeInputStream::CanRead() const { - // FIXME -#ifdef __WXWINE__ - return FALSE; -#else // !Wine if ( !IsOpened() ) return FALSE; @@ -383,7 +408,6 @@ bool wxPipeInputStream::CanRead() const } return nAvailable != 0; -#endif // Wine/!Wine } size_t wxPipeInputStream::OnSysRead(void *buffer, size_t len) @@ -438,8 +462,6 @@ size_t wxPipeOutputStream::OnSysWrite(const void *buffer, size_t len) #endif // wxUSE_STREAMS -#endif // Win32 - // ============================================================================ // wxExecute functions family // ============================================================================ @@ -451,10 +473,10 @@ static bool wxExecuteDDE(const wxString& ddeServer, const wxString& ddeTopic, const wxString& ddeCommand) { - bool ok = FALSE; + bool ok wxDUMMY_INITIALIZE(false); wxDDEClient client; - wxConnectionBase *conn = client.MakeConnection(_T(""), + wxConnectionBase *conn = client.MakeConnection(wxEmptyString, ddeServer, ddeTopic); if ( !conn ) @@ -463,22 +485,24 @@ static bool wxExecuteDDE(const wxString& ddeServer, } else // connected to DDE server { - // the added complication here is that although most - // programs use XTYP_EXECUTE for their DDE API, some - // important ones - like IE and other MS stuff - use - // XTYP_REQUEST! + // the added complication here is that although most programs use + // XTYP_EXECUTE for their DDE API, some important ones -- like Word + // and other MS stuff - use XTYP_REQUEST! // - // so we try one first and then the other one if it - // failed + // moreover, anotheri mportant program (IE) understands both but + // returns an error from Execute() so we must try Request() first + // to avoid doing it twice { + // we're prepared for this one to fail, so don't show errors wxLogNull noErrors; - ok = conn->Execute(ddeCommand); + + ok = conn->Request(ddeCommand) != NULL; } if ( !ok ) { - // now try request - but show the errors - ok = conn->Request(ddeCommand) != NULL; + // now try execute -- but show the errors + ok = conn->Execute(ddeCommand); } } @@ -491,6 +515,14 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) { wxCHECK_MSG( !!cmd, 0, wxT("empty command in wxExecute") ); +#if wxUSE_THREADS + // for many reasons, the code below breaks down if it's called from another + // thread -- this could be fixed, but as Unix versions don't support this + // neither I don't want to waste time on this now + wxASSERT_MSG( wxThread::IsMain(), + _T("wxExecute() can be called only from the main thread") ); +#endif // wxUSE_THREADS + wxString command; #if wxUSE_IPC @@ -585,12 +617,10 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) command = cmd; } -#if defined(__WIN32__) && !defined(__TWIN32__) - // the IO redirection is only supported with wxUSE_STREAMS BOOL redirect = FALSE; -#if wxUSE_STREAMS +#if wxUSE_STREAMS && !defined(__WXWINCE__) wxPipe pipeIn, pipeOut, pipeErr; // we'll save here the copy of pipeIn[Write] @@ -618,7 +648,7 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) wxZeroMemory(si); si.cb = sizeof(si); -#if wxUSE_STREAMS +#if wxUSE_STREAMS && !defined(__WXWINCE__) if ( redirect ) { si.dwFlags = STARTF_USESTDHANDLES; @@ -661,7 +691,10 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) #endif // wxUSE_STREAMS PROCESS_INFORMATION pi; - DWORD dwFlags = CREATE_DEFAULT_ERROR_MODE | CREATE_SUSPENDED; + DWORD dwFlags = CREATE_SUSPENDED; +#ifndef __WXWINCE__ + dwFlags |= CREATE_DEFAULT_ERROR_MODE ; +#endif bool ok = ::CreateProcess ( @@ -678,7 +711,7 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) &pi // process info ) != 0; -#if wxUSE_STREAMS +#if wxUSE_STREAMS && !defined(__WXWINCE__) // we can close the pipe ends used by child anyhow if ( redirect ) { @@ -690,7 +723,7 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) if ( !ok ) { -#if wxUSE_STREAMS +#if wxUSE_STREAMS && !defined(__WXWINCE__) // close the other handles too if ( redirect ) { @@ -704,7 +737,7 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) return flags & wxEXEC_SYNC ? -1 : 0; } -#if wxUSE_STREAMS +#if wxUSE_STREAMS && !defined(__WXWINCE__) // the input buffer bufOut is connected to stdout, this is why it is // called bufOut and not bufIn wxStreamTempInputBuffer bufOut, @@ -727,29 +760,15 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) } #endif // wxUSE_STREAMS - // register the class for the hidden window used for the notifications - if ( !gs_classForHiddenWindow ) - { - gs_classForHiddenWindow = _T("wxHiddenWindow"); - - WNDCLASS wndclass; - wxZeroMemory(wndclass); - wndclass.lpfnWndProc = (WNDPROC)wxExecuteWindowCbk; - wndclass.hInstance = wxGetInstance(); - wndclass.lpszClassName = gs_classForHiddenWindow; - - if ( !::RegisterClass(&wndclass) ) - { - wxLogLastError(wxT("RegisterClass(hidden window)")); - } - } - // create a hidden window to receive notification about process // termination - HWND hwnd = ::CreateWindow(gs_classForHiddenWindow, NULL, - WS_OVERLAPPEDWINDOW, - 0, 0, 0, 0, NULL, - (HMENU)NULL, wxGetInstance(), 0); + HWND hwnd = wxCreateHiddenWindow + ( + &gs_classForHiddenWindow, + wxMSWEXEC_WNDCLASSNAME, + (WNDPROC)wxExecuteWindowCbk + ); + wxASSERT_MSG( hwnd, wxT("can't create a hidden window for wxExecute") ); // Alloc data @@ -803,7 +822,7 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) ::CloseHandle(hThread); -#if wxUSE_IPC +#if wxUSE_IPC && !defined(__WXWINCE__) // second part of DDE hack: now establish the DDE conversation with the // just launched process if ( !ddeServer.empty() ) @@ -834,6 +853,12 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) // ok, process ready to accept DDE requests ok = wxExecuteDDE(ddeServer, ddeTopic, ddeCommand); } + + if ( !ok ) + { + wxLogDebug(_T("Failed to send DDE request to the process \"%s\"."), + cmd.c_str()); + } } #endif // wxUSE_IPC @@ -845,100 +870,35 @@ long wxExecute(const wxString& cmd, int flags, wxProcess *handler) return pi.dwProcessId; } + wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL; + wxCHECK_MSG( traits, -1, _T("no wxAppTraits in wxExecute()?") ); + // disable all app windows while waiting for the child process to finish -#if wxUSE_GUI - - /* - We use a dirty hack here to disable all application windows (which we - must do because otherwise the calls to wxYield() could lead to some very - unexpected reentrancies in the users code) but to avoid losing - focus/activation entirely when the child process terminates which would - happen if we simply disabled everything using wxWindowDisabler. Indeed, - remember that Windows will never activate a disabled window and when the - last childs window is closed and Windows looks for a window to activate - all our windows are still disabled. There is no way to enable them in - time because we don't know when the childs windows are going to be - closed, so the solution we use here is to keep one special tiny frame - enabled all the time. Then when the child terminates it will get - activated and when we close it below -- after reenabling all the other - windows! -- the previously active window becomes activated again and - everything is ok. - */ - wxWindow *winActive; - { - wxBusyCursor bc; - - // first disable all existing windows - wxWindowDisabler wd; - - // then create an "invisible" frame: it has minimal size, is positioned - // (hopefully) outside the screen and doesn't appear on the taskbar - winActive = new wxFrame - ( - wxTheApp->GetTopWindow(), - -1, - _T(""), - wxPoint(32600, 32600), - wxSize(1, 1), - wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR - ); - winActive->Show(); -#endif // wxUSE_GUI - - // wait until the child process terminates - while ( data->state ) - { -#if wxUSE_STREAMS - bufOut.Update(); - bufErr.Update(); + void *cookie = traits->BeforeChildWaitLoop(); + + // wait until the child process terminates + while ( data->state ) + { +#if wxUSE_STREAMS && !defined(__WXWINCE__) + bufOut.Update(); + bufErr.Update(); #endif // wxUSE_STREAMS - // don't eat 100% of the CPU -- ugly but anything else requires - // real async IO which we don't have for the moment - ::Sleep(50); - -#if wxUSE_GUI - // repaint the GUI - wxYield(); -#else // !GUI - // dispatch the messages to the hidden window so that it could - // process the wxWM_PROC_TERMINATED notification - MSG msg; - ::PeekMessage(&msg, hwnd, 0, 0, PM_REMOVE); -#endif // GUI/!GUI - } + // don't eat 100% of the CPU -- ugly but anything else requires + // real async IO which we don't have for the moment + ::Sleep(50); -#if wxUSE_GUI + // we must process messages or we'd never get wxWM_PROC_TERMINATED + traits->AlwaysYield(); } - // finally delete the dummy frame and, as wd has been already destroyed and - // the other windows reenabled, the activation is going to return to the - // window which had it before - winActive->Destroy(); -#endif // wxUSE_GUI + traits->AfterChildWaitLoop(cookie); DWORD dwExitCode = data->dwExitCode; delete data; // return the exit code return dwExitCode; -#else // Win16 - long instanceID = WinExec((LPCSTR) WXSTRINGCAST command, SW_SHOW); - if (instanceID < 32) - return flags & wxEXEC_SYNC ? -1 : 0; - - if ( flags & wxEXEC_SYNC ) - { - int running; - do - { - wxYield(); - running = GetModuleUsage((HINSTANCE)instanceID); - } while (running); - } - - return instanceID; -#endif // Win16/32 } long wxExecute(wxChar **argv, int flags, wxProcess *handler)