1 files changed, 115 insertions, 0 deletions
diff --git a/wx+/shell_execute.h b/wx+/shell_execute.h
new file mode 100644
index 00000000..00faf6ea
--- /dev/null
+++ b/wx+/shell_execute.h
@@ -0,0 +1,115 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+
+#ifndef EXECUTE_HEADER_23482134578134134
+#define EXECUTE_HEADER_23482134578134134
+
+#include <wx/msgdlg.h>
+
+#ifdef FFS_WIN
+#include <zen/last_error.h>
+#include <zen/string_tools.h>
+#include <zen/i18n.h>
+#include <zen/win.h> //includes "windows.h"
+
+#elif defined FFS_LINUX
+#include <stdlib.h>
+#include <wx/utils.h>
+#endif
+
+
+namespace zen
+{
+//launch commandline and report errors via popup dialog
+//windows: COM needs to be initialized before calling this function!
+namespace
+{
+enum ExecutionType
+{
+    EXEC_TYPE_SYNC,
+    EXEC_TYPE_ASYNC
+};
+
+void shellExecute(const wxString& command, ExecutionType type = EXEC_TYPE_ASYNC)
+{
+#ifdef FFS_WIN
+    //parse commandline
+    std::vector<std::wstring> argv;
+    {
+        int argc = 0;
+        LPWSTR* tmp = ::CommandLineToArgvW(command.c_str(), &argc);
+        for (int i = 0; i < argc; ++i)
+            argv.push_back(tmp[i]);
+        ::LocalFree(tmp);
+    }
+
+    wxString filename;
+    wxString arguments;
+    if (!argv.empty())
+    {
+        filename = argv[0];
+        for (std::vector<std::wstring>::const_iterator i = argv.begin() + 1; i != argv.end(); ++i)
+            arguments += (i != argv.begin() ? L" " : L"") +
+                         (i->empty() || std::find_if(i->begin(), i->end(), &cStringIsWhiteSpace<wchar_t>) != i->end() ? L"\"" + *i + L"\"" : *i);
+    }
+
+    SHELLEXECUTEINFO execInfo = {};
+    execInfo.cbSize       = sizeof(execInfo);
+
+    //SEE_MASK_NOASYNC is equal to SEE_MASK_FLAG_DDEWAIT, but former is defined not before Win SDK 6.0
+    execInfo.fMask        = type == EXEC_TYPE_SYNC ? (SEE_MASK_NOCLOSEPROCESS | SEE_MASK_FLAG_DDEWAIT) : 0; //don't use SEE_MASK_ASYNCOK -> returns successful despite errors!
+    execInfo.fMask       |= SEE_MASK_UNICODE | SEE_MASK_FLAG_NO_UI; //::ShellExecuteEx() shows a non-blocking pop-up dialog on errors -> we want a blocking one
+    execInfo.lpVerb       = L"open";
+    execInfo.lpFile       = filename.c_str();
+    execInfo.lpParameters = arguments.c_str();
+    execInfo.nShow        = SW_SHOWNORMAL;
+
+    if (!::ShellExecuteEx(&execInfo)) //__inout  LPSHELLEXECUTEINFO lpExecInfo
+    {
+        wxString errorMsg = _("Invalid command line: %x");
+        wxString cmdFmt = wxString(L"\nFile: ") + filename + L"\nArg: " + arguments;
+
+        errorMsg.Replace(L"%x", cmdFmt);
+        wxMessageBox(errorMsg + L"\n\n" + getLastErrorFormatted());
+        return;
+    }
+
+    if (type == EXEC_TYPE_SYNC)
+    {
+        if (execInfo.hProcess != 0)
+        {
+            ::WaitForSingleObject(execInfo.hProcess, INFINITE);
+            ::CloseHandle(execInfo.hProcess);
+        }
+    }
+
+#elif defined FFS_LINUX
+    if (type == EXEC_TYPE_SYNC)
+    {
+        int rv = ::system(utf8CvrtTo<std::string>(command).c_str()); //do NOT use std::system as its documentation says nothing about "WEXITSTATUS(rv)", ect...
+        if (rv == -1 || WEXITSTATUS(rv) == 127) //http://linux.die.net/man/3/system    "In case /bin/sh could not be executed, the exit status will be that of a command that does exit(127)"
+        {
+            wxString errorMsg = _("Invalid command line: %x");
+            replace(errorMsg, L"%x", L"\n" + command);
+            wxMessageBox(errorMsg);
+            return;
+        }
+    }
+    else
+    {
+        // ! unfortunately it seems there is no way on Linux to get a failure notification for calling an invalid command line asynchronously !
+
+        //by default wxExecute uses a zero sized dummy window as a hack to keep focus which leaves a useless empty icon in ALT-TAB list
+        //=> use wxEXEC_NODISABLE and roll our own window disabler!                   (see comment in  app.cpp: void *wxGUIAppTraits::BeforeChildWaitLoop())
+        wxWindowDisabler dummy; //disables all top level windows
+        wxExecute(command, wxEXEC_ASYNC | wxEXEC_NODISABLE);
+    }
+#endif
+}
+}
+}
+
+#endif //EXECUTE_HEADER_23482134578134134