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/** \file opendocument.c
* open a document using the systems default application for that doc
*/
/* XTrkCad - Model Railroad CAD
* Copyright (C) 2018 Martin Fischer
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include "gtkint.h"
#include "i18n.h"
#include "dynstring.h"
#if defined (_WIN32)
#define DEFAULTOPENCOMMAND "start"
#endif
#if defined(__APPLE__) && defined(__MACH__)
#define DEFAULTOPENCOMMAND "open"
#else
#define DEFAULTOPENCOMMAND "xdg-open"
#endif
/**
* Extend the PATH variable in the environment to include XTrackCAD's
* script directory.
*
* \return pointer to old path
*/
static char *
ExtendPath(void)
{
char *path = strdup(getenv("PATH"));
DynString newPath;
DynStringMalloc(&newPath, 16);
// append XTrackCAD's directory to the path as a fallback
DynStringCatCStrs(&newPath,
path,
":",
wGetAppLibDir(),
NULL);
setenv("PATH",
DynStringToCStr(&newPath),
TRUE);
DynStringFree(&newPath);
return (path);
}
/**
* Invoke the system's default application to open a file. First the
* system's standard xdg-open command is attempted. If that is not available, the
* version included with the XTrackCAD installation is executed.
*
* \param topic IN URI of document
*/
unsigned wOpenFileExternal(char * filename)
{
int rc;
DynString commandLine;
char *currentPath;
assert(filename != NULL);
assert(strlen(filename));
currentPath = ExtendPath();
DynStringMalloc(&commandLine, 16);
DynStringCatCStrs(&commandLine,
DEFAULTOPENCOMMAND,
" \"",
filename,
"\"",
NULL);
// the command should be found via the PATH
rc = system(DynStringToCStr(&commandLine));
// restore the PATH
setenv("PATH",
currentPath,
TRUE);
free(currentPath);
DynStringFree(&commandLine);
return(rc==0);
}
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