static bool wxLaunchDefaultBrowserBaseImpl(const wxString& url, int flags)
{
wxUnusedVar(flags);
#if defined(__WXMSW__)
#if wxUSE_IPC
if ( flags & wxBROWSER_NEW_WINDOW )
{
// ShellExecuteEx() opens the URL in an existing window by default so
// we can't use it if we need a new window
wxURI uri(url);
wxRegKey key(wxRegKey::HKCR, uri.GetScheme() + _T("\\shell\\open"));
if ( !key.Exists() )
{
// try default browser, it must be registered at least for http URLs
key.SetName(wxRegKey::HKCR, _T("http\\shell\\open"));
}
if ( key.Exists() )
{
wxRegKey keyDDE(key, wxT("DDEExec"));
if ( keyDDE.Exists() )
{
// we only know the syntax of WWW_OpenURL DDE request for IE,
// optimistically assume that all other browsers are compatible
// with it
static const wxString TOPIC_OPEN_URL = wxT("WWW_OpenURL");
wxString ddeCmd;
wxRegKey keyTopic(keyDDE, wxT("topic"));
bool ok = keyTopic.Exists() && (keyTopic.QueryDefaultValue() = TOPIC_OPEN_URL);
if ( ok )
{
ddeCmd = keyDDE.QueryDefaultValue();
ok = !ddeCmd.empty();
}
if ( ok )
{
// for WWW_OpenURL, the index of the window to open the URL
// in is -1 (meaning "current") by default, replace it with
// 0 which means "new" (see KB article 160957)
ok = ddeCmd.Replace(wxT("-1"), wxT("0"),
false /* only first occurence */) == 1;
}
if ( ok )
{
// and also replace the parameters: the topic should
// contain a placeholder for the URL
ok = ddeCmd.Replace(wxT("%1"), url, false) == 1;
}
if ( ok )
{
// try to send it the DDE request now but ignore the errors
wxLogNull noLog;
const wxString ddeServer = wxRegKey(keyDDE, wxT("application")).QueryDefaultValue();
if ( wxExecuteDDE(ddeServer, TOPIC_OPEN_URL, ddeCmd) )
return true;
// this is not necessarily an error: maybe browser is
// simply not running, but no matter, in any case we're
// going to launch it using ShellExecuteEx() below now and
// we shouldn't try to open a new window if we open a new
// browser anyhow
}
}
}
}
#endif // wxUSE_IPC
WinStruct<SHELLEXECUTEINFO> sei;
sei.lpFile = url.c_str();
sei.lpVerb = _T("open");
sei.nShow = SW_SHOWNORMAL;
sei.fMask = SEE_MASK_FLAG_NO_UI; // we give error message ourselves
BOOL nExecResult = ::ShellExecuteEx(&sei);
//From MSDN for wince
//hInstApp member is only valid if the function fails, in which case it
//receives one of the following error values, which are less than or
//equal to 32.
const int nResult = (int) sei.hInstApp;
// Firefox returns file not found for some reason, so make an exception
// for it
if ( nResult > 32 || nResult == SE_ERR_FNF || nExecResult == TRUE )
{
#ifdef __WXDEBUG__
// Log something if SE_ERR_FNF happens
if ( nResult == SE_ERR_FNF || nExecResult == FALSE )
wxLogDebug(wxT("SE_ERR_FNF from ShellExecute -- maybe FireFox?"));
#endif // __WXDEBUG__
return true;
}
#elif defined(__WXMAC__)
OSStatus err;
ICInstance inst;
long int startSel;
long int endSel;
err = ICStart(&inst, 'STKA'); // put your app creator code here
if (err == noErr)
{
#if !TARGET_CARBON
err = ICFindConfigFile(inst, 0, NULL);
#endif
if (err == noErr)
{
ConstStr255Param hint = 0;
startSel = 0;
endSel = url.length();
err = ICLaunchURL(inst, hint, url.fn_str(), endSel, &startSel, &endSel);
if (err != noErr)
wxLogDebug(wxT("ICLaunchURL error %d"), (int) err);
}
ICStop(inst);
return true;
}
else
{
wxLogDebug(wxT("ICStart error %d"), (int) err);
return false;
}
#else
// (non-Mac, non-MSW)
#ifdef __UNIX__
// Our best best is to use xdg-open from freedesktop.org cross-desktop
// compatibility suite xdg-utils
// (see http://portland.freedesktop.org/wiki/) -- this is installed on
// most modern distributions and may be tweaked by them to handle
// distribution specifics. Only if that fails, try to find the right
// browser ourselves.
wxString path, xdg_open;
if ( wxGetEnv(_T("PATH"), &path) &&
wxFindFileInPath(&xdg_open, path, _T("xdg-open")) )
{
if ( wxExecute(xdg_open + _T(" ") + url) )
return true;
}
wxString desktop = wxTheApp->GetTraits()->GetDesktopEnvironment();
// GNOME and KDE desktops have some applications which should be always installed
// together with their main parts, which give us the
if (desktop == wxT("GNOME"))
{
wxArrayString errors;
wxArrayString output;
// gconf will tell us the path of the application to use as browser
long res = wxExecute( wxT("gconftool-2 --get /desktop/gnome/applications/browser/exec"),
output, errors, wxEXEC_NODISABLE );
if (res >= 0 && errors.GetCount() == 0)
{
wxString cmd = output[0];
cmd << _T(' ') << url;
if (wxExecute(cmd))
return true;
}
}
else if (desktop == wxT("KDE"))
{
// kfmclient directly opens the given URL
if (wxExecute(wxT("kfmclient openURL ") + url))
return true;
}
#endif
bool ok = false;
wxString cmd;
#if wxUSE_MIMETYPE
wxFileType *ft = wxTheMimeTypesManager->GetFileTypeFromExtension(_T("html"));
if ( ft )
{
wxString mt;
ft->GetMimeType(&mt);
ok = ft->GetOpenCommand(&cmd, wxFileType::MessageParameters(url));
delete ft;
}
#endif // wxUSE_MIMETYPE
if ( !ok || cmd.empty() )
{
// fallback to checking for the BROWSER environment variable
cmd = wxGetenv(wxT("BROWSER"));
if ( !cmd.empty() )
cmd << _T(' ') << url;
}
ok = ( !cmd.empty() && wxExecute(cmd) );
if (ok)
return ok;
// no file type for HTML extension
wxLogError(_T("No default application configured for HTML files."));
#endif // !wxUSE_MIMETYPE && !__WXMSW__
return false;
}
long wxExecute(const wxString& cmd, int flags, wxProcess *handler,
const wxExecuteEnv *env)
{
wxCHECK_MSG( !cmd.empty(), 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(),
wxT("wxExecute() can be called only from the main thread") );
#endif // wxUSE_THREADS
wxString command;
#if wxUSE_IPC
// DDE hack: this is really not pretty, but we need to allow this for
// transparent handling of DDE servers in wxMimeTypesManager. Usually it
// returns the command which should be run to view/open/... a file of the
// given type. Sometimes, however, this command just launches the server
// and an additional DDE request must be made to really open the file. To
// keep all this well hidden from the application, we allow a special form
// of command: WX_DDE#<command>#DDE_SERVER#DDE_TOPIC#DDE_COMMAND in which
// case we execute just <command> and process the rest below
wxString ddeServer, ddeTopic, ddeCommand;
static const size_t lenDdePrefix = 7; // strlen("WX_DDE:")
if ( cmd.Left(lenDdePrefix) == wxT("WX_DDE#") )
{
// speed up the concatenations below
ddeServer.reserve(256);
ddeTopic.reserve(256);
ddeCommand.reserve(256);
const wxChar *p = cmd.c_str() + 7;
#if defined(__INTEL_COMPILER) && 1 /* VDM auto patch */
# pragma ivdep
# pragma swp
# pragma unroll
# pragma prefetch
# if 0
# pragma simd noassert
# endif
#endif /* VDM auto patch */
while ( *p && *p != wxT('#') )
{
command += *p++;
}
if ( *p )
{
// skip '#'
p++;
}
else
{
wxFAIL_MSG(wxT("invalid WX_DDE command in wxExecute"));
}
#if defined(__INTEL_COMPILER) && 1 /* VDM auto patch */
# pragma ivdep
# pragma swp
# pragma unroll
# pragma prefetch
# if 0
# pragma simd noassert
# endif
#endif /* VDM auto patch */
while ( *p && *p != wxT('#') )
{
ddeServer += *p++;
}
if ( *p )
{
// skip '#'
p++;
}
else
{
wxFAIL_MSG(wxT("invalid WX_DDE command in wxExecute"));
}
#if defined(__INTEL_COMPILER) && 1 /* VDM auto patch */
# pragma ivdep
# pragma swp
# pragma unroll
# pragma prefetch
# if 0
# pragma simd noassert
# endif
#endif /* VDM auto patch */
while ( *p && *p != wxT('#') )
{
ddeTopic += *p++;
}
if ( *p )
{
// skip '#'
p++;
}
else
{
wxFAIL_MSG(wxT("invalid WX_DDE command in wxExecute"));
}
#if defined(__INTEL_COMPILER) && 1 /* VDM auto patch */
# pragma ivdep
# pragma swp
# pragma unroll
# pragma prefetch
# if 0
# pragma simd noassert
# endif
#endif /* VDM auto patch */
while ( *p )
{
ddeCommand += *p++;
}
// if we want to just launch the program and not wait for its
// termination, try to execute DDE command right now, it can succeed if
// the process is already running - but as it fails if it's not
// running, suppress any errors it might generate
if ( !(flags & wxEXEC_SYNC) )
{
wxLogNull noErrors;
if ( wxExecuteDDE(ddeServer, ddeTopic, ddeCommand) )
{
// a dummy PID - this is a hack, of course, but it's well worth
// it as we don't open a new server each time we're called
// which would be quite bad
return -1;
}
}
}
else
#endif // wxUSE_IPC
{
// no DDE
command = cmd;
}
// the IO redirection is only supported with wxUSE_STREAMS
BOOL redirect = FALSE;
#if wxUSE_STREAMS
wxPipe pipeIn, pipeOut, pipeErr;
// open the pipes to which child process IO will be redirected if needed
if ( handler && handler->IsRedirected() )
{
// create pipes for redirecting stdin, stdout and stderr
if ( !pipeIn.Create() || !pipeOut.Create() || !pipeErr.Create() )
{
wxLogSysError(_("Failed to redirect the child process IO"));
// indicate failure: we need to return different error code
// depending on the sync flag
return flags & wxEXEC_SYNC ? -1 : 0;
}
redirect = TRUE;
}
#endif // wxUSE_STREAMS
// create the process
STARTUPINFO si;
wxZeroMemory(si);
si.cb = sizeof(si);
#if wxUSE_STREAMS
if ( redirect )
{
si.dwFlags = STARTF_USESTDHANDLES;
si.hStdInput = pipeIn[wxPipe::Read];
si.hStdOutput = pipeOut[wxPipe::Write];
si.hStdError = pipeErr[wxPipe::Write];
// We must set the handles to those sides of std* pipes that we won't
// in the child to be non-inheritable. We must do this before launching
// the child process as otherwise these handles will be inherited by
// the child which will never close them and so the pipe will not
// return ERROR_BROKEN_PIPE if the parent or child exits unexpectedly
// causing the remaining process to potentially become deadlocked in
// ReadFile() or WriteFile().
if ( !::SetHandleInformation(pipeIn[wxPipe::Write],
HANDLE_FLAG_INHERIT, 0) )
wxLogLastError(wxT("SetHandleInformation(pipeIn)"));
if ( !::SetHandleInformation(pipeOut[wxPipe::Read],
HANDLE_FLAG_INHERIT, 0) )
wxLogLastError(wxT("SetHandleInformation(pipeOut)"));
if ( !::SetHandleInformation(pipeErr[wxPipe::Read],
HANDLE_FLAG_INHERIT, 0) )
wxLogLastError(wxT("SetHandleInformation(pipeErr)"));
}
#endif // wxUSE_STREAMS
// The default logic for showing the console is to show it only if the IO
// is not redirected however wxEXEC_{SHOW,HIDE}_CONSOLE flags can be
// explicitly specified to change it.
if ( (flags & wxEXEC_HIDE_CONSOLE) ||
(redirect && !(flags & wxEXEC_SHOW_CONSOLE)) )
{
si.dwFlags |= STARTF_USESHOWWINDOW;
si.wShowWindow = SW_HIDE;
}
PROCESS_INFORMATION pi;
DWORD dwFlags = CREATE_SUSPENDED;
if ( (flags & wxEXEC_MAKE_GROUP_LEADER) )
dwFlags |= CREATE_NEW_PROCESS_GROUP;
dwFlags |= CREATE_DEFAULT_ERROR_MODE ;
wxWxCharBuffer envBuffer;
bool useCwd = false;
if ( env )
{
useCwd = !env->cwd.empty();
// Translate environment variable map into NUL-terminated list of
// NUL-terminated strings.
if ( !env->env.empty() )
{
#if wxUSE_UNICODE
// Environment variables can contain non-ASCII characters. We could
// check for it and not use this flag if everything is really ASCII
// only but there doesn't seem to be any reason to do it so just
// assume Unicode by default.
dwFlags |= CREATE_UNICODE_ENVIRONMENT;
#endif // wxUSE_UNICODE
wxEnvVariableHashMap::const_iterator it;
size_t envSz = 1; // ending '\0'
#if defined(__INTEL_COMPILER) && 1 /* VDM auto patch */
# pragma ivdep
# pragma swp
# pragma unroll
# pragma prefetch
# if 0
# pragma simd noassert
# endif
#endif /* VDM auto patch */
for ( it = env->env.begin(); it != env->env.end(); ++it )
{
// Add size of env variable name and value, and '=' char and
// ending '\0'
envSz += it->first.length() + it->second.length() + 2;
}
envBuffer.extend(envSz);
wxChar *p = envBuffer.data();
#if defined(__INTEL_COMPILER) && 1 /* VDM auto patch */
# pragma ivdep
# pragma swp
# pragma unroll
# pragma prefetch
# if 0
# pragma simd noassert
# endif
#endif /* VDM auto patch */
for ( it = env->env.begin(); it != env->env.end(); ++it )
{
const wxString line = it->first + wxS("=") + it->second;
// Include the trailing NUL which will always terminate the
// buffer returned by t_str().
const size_t len = line.length() + 1;
wxTmemcpy(p, line.t_str(), len);
p += len;
}
// And another NUL to terminate the list of NUL-terminated strings.
*p = 0;
}
}
// Translate wxWidgets priority to Windows conventions.
if ( handler )
{
unsigned prio = handler->GetPriority();
if ( prio <= 20 )
dwFlags |= IDLE_PRIORITY_CLASS;
else if ( prio <= 40 )
dwFlags |= BELOW_NORMAL_PRIORITY_CLASS;
else if ( prio <= 60 )
dwFlags |= NORMAL_PRIORITY_CLASS;
else if ( prio <= 80 )
dwFlags |= ABOVE_NORMAL_PRIORITY_CLASS;
else if ( prio <= 99 )
dwFlags |= HIGH_PRIORITY_CLASS;
else if ( prio <= 100 )
dwFlags |= REALTIME_PRIORITY_CLASS;
else
{
wxFAIL_MSG(wxT("invalid value of thread priority parameter"));
dwFlags |= NORMAL_PRIORITY_CLASS;
}
}
bool ok = ::CreateProcess
(
NULL, // application name (use only cmd line)
wxMSW_CONV_LPTSTR(command), // full command line
NULL, // security attributes: defaults for both
NULL, // the process and its main thread
redirect, // inherit handles if we use pipes
dwFlags, // process creation flags
envBuffer.data(), // environment (may be NULL which is fine)
useCwd // initial working directory
? wxMSW_CONV_LPTSTR(env->cwd)
: NULL, // (or use the same)
&si, // startup info (unused here)
&pi // process info
) != 0;
#if wxUSE_STREAMS
// we can close the pipe ends used by child anyhow
if ( redirect )
{
::CloseHandle(pipeIn.Detach(wxPipe::Read));
::CloseHandle(pipeOut.Detach(wxPipe::Write));
::CloseHandle(pipeErr.Detach(wxPipe::Write));
}
#endif // wxUSE_STREAMS
if ( !ok )
{
#if wxUSE_STREAMS
// close the other handles too
if ( redirect )
{
::CloseHandle(pipeIn.Detach(wxPipe::Write));
::CloseHandle(pipeOut.Detach(wxPipe::Read));
::CloseHandle(pipeErr.Detach(wxPipe::Read));
}
#endif // wxUSE_STREAMS
wxLogSysError(_("Execution of command '%s' failed"), command.c_str());
return flags & wxEXEC_SYNC ? -1 : 0;
}
#if wxUSE_STREAMS
// the input buffer bufOut is connected to stdout, this is why it is
// called bufOut and not bufIn
wxStreamTempInputBuffer bufOut,
bufErr;
if ( redirect )
{
// We can now initialize the wxStreams
wxPipeInputStream *
outStream = new wxPipeInputStream(pipeOut.Detach(wxPipe::Read));
wxPipeInputStream *
errStream = new wxPipeInputStream(pipeErr.Detach(wxPipe::Read));
wxPipeOutputStream *
inStream = new wxPipeOutputStream(pipeIn.Detach(wxPipe::Write));
handler->SetPipeStreams(outStream, inStream, errStream);
bufOut.Init(outStream);
bufErr.Init(errStream);
}
#endif // wxUSE_STREAMS
// create a hidden window to receive notification about process
// termination
HWND hwnd = wxCreateHiddenWindow
(
&gs_classForHiddenWindow,
wxMSWEXEC_WNDCLASSNAME,
(WNDPROC)wxExecuteWindowCbk
);
wxASSERT_MSG( hwnd, wxT("can't create a hidden window for wxExecute") );
// Alloc data
wxExecuteData *data = new wxExecuteData;
data->hProcess = pi.hProcess;
data->dwProcessId = pi.dwProcessId;
data->hWnd = hwnd;
data->state = (flags & wxEXEC_SYNC) != 0;
if ( flags & wxEXEC_SYNC )
{
// handler may be !NULL for capturing program output, but we don't use
// it wxExecuteData struct in this case
data->handler = NULL;
}
else
{
// may be NULL or not
data->handler = handler;
if (handler)
handler->SetPid(pi.dwProcessId);
}
DWORD tid;
HANDLE hThread = ::CreateThread(NULL,
0,
wxExecuteThread,
(void *)data,
0,
&tid);
// resume process we created now - whether the thread creation succeeded or
// not
if ( ::ResumeThread(pi.hThread) == (DWORD)-1 )
{
// ignore it - what can we do?
wxLogLastError(wxT("ResumeThread in wxExecute"));
}
// close unneeded handle
if ( !::CloseHandle(pi.hThread) )
{
wxLogLastError(wxT("CloseHandle(hThread)"));
}
if ( !hThread )
{
wxLogLastError(wxT("CreateThread in wxExecute"));
DestroyWindow(hwnd);
delete data;
// the process still started up successfully...
return pi.dwProcessId;
}
gs_asyncThreads.push_back(hThread);
data->hThread = hThread;
#if wxUSE_IPC
// second part of DDE hack: now establish the DDE conversation with the
// just launched process
if ( !ddeServer.empty() )
{
bool ddeOK;
// give the process the time to init itself
//
// we use a very big timeout hoping that WaitForInputIdle() will return
// much sooner, but not INFINITE just in case the process hangs
// completely - like this we will regain control sooner or later
switch ( ::WaitForInputIdle(pi.hProcess, 10000 /* 10 seconds */) )
{
default:
wxFAIL_MSG( wxT("unexpected WaitForInputIdle() return code") );
// fall through
case WAIT_FAILED:
wxLogLastError(wxT("WaitForInputIdle() in wxExecute"));
case WAIT_TIMEOUT:
wxLogDebug(wxT("Timeout too small in WaitForInputIdle"));
ddeOK = false;
break;
case 0:
// ok, process ready to accept DDE requests
ddeOK = wxExecuteDDE(ddeServer, ddeTopic, ddeCommand);
}
if ( !ddeOK )
{
wxLogDebug(wxT("Failed to send DDE request to the process \"%s\"."),
cmd.c_str());
}
}
#endif // wxUSE_IPC
if ( !(flags & wxEXEC_SYNC) )
{
// clean up will be done when the process terminates
// return the pid
return pi.dwProcessId;
}
wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
wxCHECK_MSG( traits, -1, wxT("no wxAppTraits in wxExecute()?") );
void *cookie = NULL;
if ( !(flags & wxEXEC_NODISABLE) )
{
// disable all app windows while waiting for the child process to finish
cookie = traits->BeforeChildWaitLoop();
}
// wait until the child process terminates
#if defined(__INTEL_COMPILER) && 1 /* VDM auto patch */
# pragma ivdep
# pragma swp
# pragma unroll
# pragma prefetch
# if 0
# pragma simd noassert
# endif
#endif /* VDM auto patch */
while ( data->state )
{
#if wxUSE_STREAMS
if ( !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);
}
// we must always process messages for our hidden window or we'd never
// get wxWM_PROC_TERMINATED and so this loop would never terminate
MSG msg;
::PeekMessage(&msg, data->hWnd, 0, 0, PM_REMOVE);
// we may also need to process messages for all the other application
// windows
if ( !(flags & wxEXEC_NOEVENTS) )
{
wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
if ( loop )
loop->Yield();
}
}
if ( !(flags & wxEXEC_NODISABLE) )
{
// reenable disabled windows back
traits->AfterChildWaitLoop(cookie);
}
DWORD dwExitCode = data->dwExitCode;
delete data;
// return the exit code
return dwExitCode;
}
bool wxDoLaunchDefaultBrowser(const wxString& url, const wxString& scheme, int flags)
{
wxUnusedVar(flags);
#if wxUSE_IPC
if ( flags & wxBROWSER_NEW_WINDOW )
{
// ShellExecuteEx() opens the URL in an existing window by default so
// we can't use it if we need a new window
wxRegKey key(wxRegKey::HKCR, scheme + wxT("\\shell\\open"));
if ( !key.Exists() )
{
// try the default browser, it must be registered at least for http URLs
key.SetName(wxRegKey::HKCR, wxT("http\\shell\\open"));
}
if ( key.Exists() )
{
wxRegKey keyDDE(key, wxT("DDEExec"));
if ( keyDDE.Exists() )
{
// we only know the syntax of WWW_OpenURL DDE request for IE,
// optimistically assume that all other browsers are compatible
// with it
static const wxChar *TOPIC_OPEN_URL = wxT("WWW_OpenURL");
wxString ddeCmd;
wxRegKey keyTopic(keyDDE, wxT("topic"));
bool ok = keyTopic.Exists() &&
keyTopic.QueryDefaultValue() == TOPIC_OPEN_URL;
if ( ok )
{
ddeCmd = keyDDE.QueryDefaultValue();
ok = !ddeCmd.empty();
}
if ( ok )
{
// for WWW_OpenURL, the index of the window to open the URL
// in is -1 (meaning "current") by default, replace it with
// 0 which means "new" (see KB article 160957)
ok = ddeCmd.Replace(wxT("-1"), wxT("0"),
false /* only first occurrence */) == 1;
}
if ( ok )
{
// and also replace the parameters: the topic should
// contain a placeholder for the URL
ok = ddeCmd.Replace(wxT("%1"), url, false) == 1;
}
if ( ok )
{
// try to send it the DDE request now but ignore the errors
wxLogNull noLog;
const wxString ddeServer = wxRegKey(keyDDE, wxT("application"));
if ( wxExecuteDDE(ddeServer, TOPIC_OPEN_URL, ddeCmd) )
return true;
// this is not necessarily an error: maybe browser is
// simply not running, but no matter, in any case we're
// going to launch it using ShellExecuteEx() below now and
// we shouldn't try to open a new window if we open a new
// browser anyhow
}
}
}
}
#endif // wxUSE_IPC
WinStruct<SHELLEXECUTEINFO> sei;
sei.lpFile = url.c_str();
sei.lpVerb = wxT("open");
sei.nShow = SW_SHOWNORMAL;
sei.fMask = SEE_MASK_FLAG_NO_UI; // we give error message ourselves
if ( ::ShellExecuteEx(&sei) )
return true;
return false;
}
