kget/main.cpp

   1 /***************************************************************************
   2 *                                  main.cpp
   3 *                             -------------------
   4 *
   5 *    Revision     : $Id$
   6 *    begin        : Tue Jan 29 2002
   7 *    copyright    : (C) 2002 by Patrick Charbonnier
   8 *                 : Based On Caitoo v.0.7.3 (c) 1998 - 2000, Matej Koss
   9 *    email        : pch@freeshell.org
  10 *
  11 ****************************************************************************/
  12
  13 /***************************************************************************
  14  *
  15  *   This program is free software; you can redistribute it and/or modify
  16  *   it under the terms of the GNU General Public License as published by
  17  *   the Free Software Foundation; either version 2 of the License, or
  18  *   (at your option) any later version.
  19  *
  20  *   This program is distributed in the hope that it will be useful,
  21  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  *   GNU General Public License for more details.
  24  *
  25  ***************************************************************************/
  26
  27
  28 #include <kwin.h>
  29 #include <klocale.h>
  30 #include <kaboutdata.h>
  31 #include <kcmdlineargs.h>
  32 #include <kurl.h>
  33 #include <kuniqueapplication.h>
  34 #include <kstartupinfo.h>
  35
  36 #include <signal.h>
  37 #include <unistd.h>
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include "kmainwidget.h"
  41 #include "version.h"
  42
  43
  44
  45 static const char description[] = I18N_NOOP("An advanced download manager for KDE");
  46
  47 static const char version[] = KGETVERSION;
  48
  49
  50 static KCmdLineOptions option[] = {
  51                                       { "showDropTarget", I18N_NOOP("Start KGet with drop target"), 0 },
  52                                       {"+[URL(s)]", I18N_NOOP("URL(s) to download"), 0},
  53                                       KCmdLineLastOption
  54                                   };
  55
  56 static void cleanup(void);
  57 static void setSignalHandler(void (*handler) (int));
  58
  59 //static msg_handler oldMsgHandler = 0L;
  60
  61 //-----------------------------------------------------------------------------
  62 // Crash recovery signal handler
  63 static void signalHandler(int sigId)
  64 {
  65     fprintf(stderr, "*** KGet got signal %d\n", sigId);
  66
  67     if (sigId != SIGSEGV && kmain) {
  68         fprintf(stderr, "*** KGet saving data\n");
  69         delete kmain;
  70     }
  71     // If Kget crashes again below this line we consider the data lost :-|
  72     // Otherwise Kget will end in an infinite loop.
  73     setSignalHandler(SIG_DFL);
  74     cleanup();
  75     exit(1);
  76 }
  77
  78
  79 //-----------------------------------------------------------------------------
  80 static void setSignalHandler(void (*handler) (int))
  81 {
  82     signal(SIGSEGV, handler);
  83     signal(SIGKILL, handler);
  84     signal(SIGTERM, handler);
  85     signal(SIGHUP, handler);
  86     signal(SIGFPE, handler);
  87     signal(SIGABRT, handler);
  88
  89     // catch also the keyboard interrupt
  90     signal(SIGINT, handler);
  91 }
  92
  93
  94 static void cleanup(void)
  95 {
  96     qInstallMsgHandler(0L /*oldMsgHandler*/);
  97 //     QString cmd;
  98 }
  99
 100
 101 class KGetApp : public KUniqueApplication
 102 {
 103 private:
 104     KMainWidget *kmainwidget;
 105
 106 public:
 107     KGetApp() : KUniqueApplication()
 108     {
 109 #ifdef _DEBUG
 110         sDebugIn << endl;
 111 #endif
 112
 113         kmainwidget=0;
 114
 115 #ifdef _DEBUG
 116         sDebugOut << endl;
 117 #endif
 118     }
 119
 120     ~KGetApp()
 121     {
 122 #ifdef _DEBUG
 123         sDebugIn << endl;
 124 #endif
 125     delete kmainwidget;
 126 #ifdef _DEBUG
 127         sDebugOut << endl;
 128 #endif
 129     }
 130
 131
 132     int newInstance()
 133     {
 134 #ifdef _DEBUG
 135         sDebugIn <<"kmainwidget="<<kmainwidget << endl;
 136 #endif
 137
 138         KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
 139
 140
 141         if (kmainwidget==0)
 142         {
 143             if(args->count()>0)
 144                 kmainwidget=new KMainWidget(true);
 145             else
 146                 kmainwidget=new KMainWidget();
 147             setMainWidget(kmain);
 148         }
 149
 150         else
 151             KStartupInfo::setNewStartupId( mainWidget(), kapp->startupId());
 152
 153         if (args->isSet("showDropTarget"))
 154             kmain->activateDropTarget();
 155
 156         if (args->count()==1)
 157         {
 158 #ifdef _DEBUG
 159             sDebug <<"args(0)= "<<args->arg(0) << endl;
 160 #endif
 161             QString txt(args->arg(0));
 162             if ( txt.endsWith( ".kgt" ) )
 163                 kmain->readTransfersEx(KURL::fromPathOrURL( txt ));
 164             else
 165                 kmain->addTransferEx( KURL::fromPathOrURL( txt ),
 166                                       KURL());
 167         }
 168         else if(args->count()==2)
 169             kmain->addTransferEx( KURL::fromPathOrURL( args->arg(0) ),
 170                                   KURL::fromPathOrURL( args->arg(1) ));
 171
 172         args->clear();
 173
 174 #ifdef _DEBUG
 175         sDebugOut << endl;
 176 #endif
 177
 178         return 0;
 179     }
 180 };
 181
 182
 183 /////////////////////////////////////////////////////////////////
 184
 185 int main(int argc, char *argv[])
 186 {
 187     KAboutData aboutData("kget", I18N_NOOP("KGet"), version, description, KAboutData::License_GPL, "(C) 2001 - 2002, Patrick Charbonnier \n(C) 2002, Carsten Pfeiffer\n(C) 1998 - 2000, Matej Koss", 0, "http://kget.sourceforge.net");
 188
 189     aboutData.addAuthor("Patrick  Charbonnier", 0, "pch@freeshell.org");
 190     aboutData.addAuthor("Carsten Pfeiffer", 0, "pfeiffer@kde.org");
 191     aboutData.addAuthor("Matej Koss", 0);
 192
 193
 194     KCmdLineArgs::init(argc, argv, &aboutData);
 195     KCmdLineArgs::addCmdLineOptions(option);
 196
 197     KGetApp::addCmdLineOptions();
 198
 199     if (!KGetApp::start()) {
 200         fprintf(stderr, "kget is already running!\n");
 201         return 0;
 202     }
 203
 204     KGetApp kApp;
 205
 206 // disabling he custom signal handler, so at least we have the backtraces for
 207 // crashes...
 208 //    setSignalHandler(signalHandler);
 209     kApp.exec();
 210
 211     cleanup();
 212 }