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appformime.cpp    238 lines (210 with data), 6.2 kB

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/* Copyright (C) 2004 J.F.Dockes
* 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.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef TEST_APPFORMIME
#include <conftree.h>
#include <fstreewalk.h>
#include <iostream>
using namespace std;
#include "pathut.h"
#include "smallut.h"
#include "appformime.h"
static const string topappsdir("/usr/share/applications");
static const string desktopext("desktop");
static DesktopDb *theDb;
class FstCb : public FsTreeWalkerCB {
public:
FstCb(DesktopDb::AppMap *appdefs)
: m_appdefs(appdefs)
{
}
virtual FsTreeWalker::Status
processone(const string &, const struct stat *, FsTreeWalker::CbFlag);
DesktopDb::AppMap *m_appdefs;
};
FsTreeWalker::Status FstCb::processone(const string& fn, const struct stat *,
FsTreeWalker::CbFlag flg)
{
if (flg != FsTreeWalker::FtwRegular)
return FsTreeWalker::FtwOk;
if (path_suffix(fn).compare(desktopext)) {
//cerr << fn << " does not end with .desktop" << endl;
return FsTreeWalker::FtwOk;
}
ConfSimple dt(fn.c_str(), true);
if (!dt.ok()) {
cerr << fn << " cant parse" << endl;
return FsTreeWalker::FtwOk;
}
string tp, nm, cmd, mt;
if (!dt.get("Type", tp, "Desktop Entry")) {
//cerr << fn << " no Type" << endl;
return FsTreeWalker::FtwOk;
}
if (tp.compare("Application")) {
//cerr << fn << " wrong Type " << tp << endl;
return FsTreeWalker::FtwOk;
}
if (!dt.get("Exec", cmd, "Desktop Entry")) {
//cerr << fn << " no Exec" << endl;
return FsTreeWalker::FtwOk;
}
if (!dt.get("Name", nm, "Desktop Entry")) {
//cerr << fn << " no Name" << endl;
nm = path_basename(fn, desktopext);
}
if (!dt.get("MimeType", mt, "Desktop Entry")) {
//cerr << fn << " no MimeType" << endl;
return FsTreeWalker::FtwOk;
}
DesktopDb::AppDef appdef(nm, cmd);
// Breakup mime type list, and push app to mime entries
vector<string> mimes;
stringToTokens(mt, mimes, ";");
for (vector<string>::const_iterator it = mimes.begin();
it != mimes.end(); it++) {
(*m_appdefs)[*it].push_back(appdef);
}
return FsTreeWalker::FtwOk;
}
DesktopDb* DesktopDb::getDb()
{
if (theDb == 0) {
theDb = new DesktopDb();
}
if (theDb && theDb->m_ok)
return theDb;
return 0;
}
void DesktopDb::build(const string& dir)
{
FstCb procapp(&m_appMap);
FsTreeWalker walker;
if (walker.walk(dir, procapp) != FsTreeWalker::FtwOk) {
m_ok = false;
m_reason = walker.getReason();
}
m_ok = true;
}
DesktopDb::DesktopDb()
{
build(topappsdir);
}
DesktopDb::DesktopDb(const string& dir)
{
build(dir);
}
bool DesktopDb::appForMime(const string& mime, vector<AppDef> *apps,
string *reason)
{
AppMap::const_iterator it = m_appMap.find(mime);
if (it == m_appMap.end()) {
if (reason)
*reason = string("No application found for ") + mime;
return false;
}
*apps = it->second;
return true;
}
bool DesktopDb::allApps(vector<AppDef> *apps)
{
map<string, AppDef> allaps;
for (AppMap::const_iterator it = m_appMap.begin();
it != m_appMap.end(); it++) {
for (vector<AppDef>::const_iterator it1 = it->second.begin();
it1 != it->second.end(); it1++) {
allaps.insert(pair<string, AppDef>
(it1->name, AppDef(it1->name, it1->command)));
}
}
for (map<string, AppDef>::const_iterator it = allaps.begin();
it != allaps.end(); it++) {
apps->push_back(it->second);
}
return true;
}
bool DesktopDb::appByName(const string& nm, AppDef& app)
{
for (AppMap::const_iterator it = m_appMap.begin();
it != m_appMap.end(); it++) {
for (vector<AppDef>::const_iterator it1 = it->second.begin();
it1 != it->second.end(); it1++) {
if (!nm.compare(it1->name)) {
app.name = it1->name;
app.command = it1->command;
return true;
}
}
}
return false;
}
const string& DesktopDb::getReason()
{
return m_reason;
}
#else // TEST_APPFORMIME
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <string>
#include <iostream>
#include <vector>
using namespace std;
#include "appformime.h"
static char *thisprog;
static char usage [] =
" appformime <mime type>\n\n"
;
static void
Usage(void)
{
fprintf(stderr, "%s: usage:\n%s", thisprog, usage);
exit(1);
}
int main(int argc, char **argv)
{
thisprog = argv[0];
argc--; argv++;
if (argc != 1)
Usage();
string mime = *argv++;argc--;
string reason;
vector<DesktopDb::AppDef> appdefs;
DesktopDb *ddb = DesktopDb::getDb();
if (ddb == 0) {
cerr << "Could not initialize desktop db: " << DesktopDb::getReason()
<< endl;
exit(1);
}
if (!ddb->appForMime(mime, &appdefs, &reason)) {
cerr << "appForMime failed: " << reason << endl;
exit(1);
}
if (appdefs.empty()) {
cerr << "No application found for [" << mime << "]" << endl;
exit(1);
}
cout << mime << " -> ";
for (vector<DesktopDb::AppDef>::const_iterator it = appdefs.begin();
it != appdefs.end(); it++) {
cout << "[" << it->name << ", " << it->command << "], ";
}
cout << endl;
exit(0);
}
#endif //TEST_APPFORMIME