# dcop Library API Documentation

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# dcopfind.cpp

    00001 /*****************************************************************
    00002 Copyright (c) 2000 Matthias Ettrich <ettrich@kde.org>
    00003 Copyright (c) 2001 Waldo Bastian <bastian@kde.org>
    00004
    00005 Permission is hereby granted, free of charge, to any person obtaining a copy
    00006 of this software and associated documentation files (the "Software"), to deal
    00007 in the Software without restriction, including without limitation the rights
    00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    00009 copies of the Software, and to permit persons to whom the Software is
    00010 furnished to do so, subject to the following conditions:
    00011
    00012 The above copyright notice and this permission notice shall be included in
    00013 all copies or substantial portions of the Software.
    00014
    00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
    00018 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
    00019 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
    00020 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    00021
    00022 ******************************************************************/
    00023
    00024 #include <qvariant.h>
    00025 #include <qcolor.h>
    00026 #include "../kdatastream.h"
    00027 #include "../dcopclient.h"
    00028 #include "../dcopref.h"
    00029 #include <stdlib.h>
    00030 #include <stdio.h>
    00031 #include <ctype.h>
    00032
    00033 #include "marshall.cpp"
    00034
    00035 static DCOPClient* dcop = 0;
    00036 static bool bAppIdOnly = 0;
    00037 static bool bLaunchApp = 0;
    00038
    00039 bool findObject( const char* app, const char* obj, const char* func, QCStringList args )
    00040 {
    00041     QString f = func; // Qt is better with unicode strings, so use one.
    00042     int left = f.find( '(' );
    00043     int right = f.find( ')' );
    00044
    00045     if ( right <  left )
    00046     {
    00047         qWarning( "parentheses do not match" );
    00048         exit(1);
    00049     }
    00050
    00051     if ( !f.isEmpty() && (left < 0) )
    00052         f += "()";
    00053
    00054     // This may seem expensive but is done only once per invocation
    00055     // of dcop, so it should be OK.
    00056     //
    00057     //
    00058     QStringList intTypes;
    00059     intTypes << "int" << "unsigned" << "long" << "bool" ;
    00060
    00061     QStringList types;
    00062     if ( left >0 && left + 1 < right - 1) {
    00063         types = QStringList::split( ',', f.mid( left + 1, right - left - 1) );
    00064         for ( QStringList::Iterator it = types.begin(); it != types.end(); ++it ) {
    00065             QString lt = (*it).simplifyWhiteSpace();
    00066
    00067             int s = lt.find(' ');
    00068
    00069             // If there are spaces in the name, there may be two
    00070             // reasons: the parameter name is still there, ie.
    00071             // "QString URL" or it's a complicated int type, ie.
    00072             // "unsigned long long int bool".
    00073             //
    00074             //
    00075             if ( s > 0 )
    00076             {
    00077                 QStringList partl = QStringList::split(' ' , lt);
    00078
    00079                 // The zero'th part is -- at the very least -- a
    00080                 // type part. Any trailing parts *might* be extra
    00081                 // int-type keywords, or at most one may be the
    00082                 // parameter name.
    00083                 //
    00084                 //
    00085                 s=1;
    00086
    00087                 while (s < (int)partl.count() && intTypes.contains(partl[s]))
    00088                 {
    00089                         s++;
    00090                 }
    00091
    00092                 if (s<(int)partl.count()-1)
    00093                 {
    00094                         qWarning("The argument `%s' seems syntactically wrong.",
    00095                                 lt.latin1());
    00096                 }
    00097                 if (s==(int)partl.count()-1)
    00098                 {
    00099                         partl.remove(partl.at(s));
    00100                 }
    00101
    00102                 lt = partl.join(" ");
    00103                 lt = lt.simplifyWhiteSpace();
    00104             }
    00105
    00106             (*it) = lt;
    00107         }
    00108         QString fc = f.left( left );
    00109         fc += '(';
    00110         bool first = TRUE;
    00111         for ( QStringList::Iterator it = types.begin(); it != types.end(); ++it ) {
    00112             if ( !first )
    00113                 fc +=",";
    00114             first = FALSE;
    00115             fc += *it;
    00116         }
    00117         fc += ')';
    00118         f = fc;
    00119     }
    00120
    00121     if ( types.count() != args.count() ) {
    00122         qWarning( "arguments do not match" );
    00123         exit(1);
    00124     }
    00125
    00126     QByteArray data;
    00127     QDataStream arg(data, IO_WriteOnly);
    00128
    00129     uint i = 0;
    00130     for ( QStringList::Iterator it = types.begin(); it != types.end(); ++it ) {
    00131         marshall(arg, args, i, *it);
    00132     }
    00133     if ( (uint) i != args.count() ) {
    00134         qWarning( "arguments do not match" );
    00135         exit(1);
    00136     }
    00137
    00138     QCString foundApp;
    00139     QCString foundObj;
    00140     if ( dcop->findObject( app, obj, f.latin1(),  data, foundApp, foundObj) )
    00141     {
    00142        if (bAppIdOnly)
    00143           puts(foundApp.data());
    00144        else
    00145           printf("DCOPRef(%s,%s)\n", qStringToC(foundApp), qStringToC(foundObj));
    00146        return true;
    00147     }
    00148     return false;
    00149 }
    00150
    00151 bool launchApp(QString app)
    00152 {
    00153     int l = app.length();
    00154     if (l && (app[l-1] == '*'))
    00155        l--;
    00156     if (l && (app[l-1] == '-'))
    00157        l--;
    00158     if (!l) return false;
    00159     app.truncate(l);
    00160
    00161     QStringList URLs;
    00162     QByteArray data, replyData;
    00163     QCString replyType;
    00164     QDataStream arg(data, IO_WriteOnly);
    00165     arg << app << URLs;
    00166
    00167     if ( !dcop->call( "klauncher", "klauncher", "start_service_by_desktop_name(QString,QStringList)",
    00168                       data, replyType, replyData) ) {
    00169         qWarning( "call to klauncher failed.");
    00170         return false;
    00171     }
    00172     QDataStream reply(replyData, IO_ReadOnly);
    00173
    00174     if ( replyType != "serviceResult" )
    00175     {
    00176         qWarning( "unexpected result '%s' from klauncher.", replyType.data());
    00177         return false;
    00178     }
    00179     int result;
    00180     QCString dcopName;
    00181     QString error;
    00182     reply >> result >> dcopName >> error;
    00183     if (result != 0)
    00184     {
    00185         qWarning("Error starting '%s': %s", app.local8Bit().data(), error.local8Bit().data());
    00186         return false;
    00187     }
    00188     return true;
    00189 }
    00190
    00191 void usage()
    00192 {
    00193    fprintf( stderr, "Usage: dcopfind [-l] [-a] application [object [function [arg1] [arg2] [arg3] ... ] ] ] \n" );
    00194    exit(0);
    00195 }
    00196
    00197
    00198 int main( int argc, char** argv )
    00199 {
    00200     int argi = 1;
    00201
    00202     while ((argi < argc) && (argv[argi][0] == '-'))
    00203     {
    00204        switch ( argv[argi][1] ) {
    00205        case 'l':
    00206             bLaunchApp = true;
    00207             break;
    00208        case 'a':
    00209             bAppIdOnly = true;
    00210             break;
    00211        default:
    00212             usage();
    00213        }
    00214        argi++;
    00215     }
    00216
    00217     if (argc <= argi)
    00218        usage();
    00219
    00220     DCOPClient client;
    00221     client.attach();
    00222     dcop = &client;
    00223
    00224     QCString app;
    00225     QCString objid;
    00226     QCString function;
    00227     char **args = 0;
    00228     if ((argc > argi) && (strncmp(argv[argi], "DCOPRef(", 8)) == 0)
    00229     {
    00230        char *delim = strchr(argv[argi], ',');
    00231        if (!delim)
    00232        {
    00233           fprintf(stderr, "Error: '%s' is not a valid DCOP reference.\n", argv[argi]);
    00234           return 1;
    00235        }
    00236        *delim = 0;
    00237        app = argv[argi++] + 8;
    00238        delim++;
    00239        delim[strlen(delim)-1] = 0;
    00240        objid = delim;
    00241     }
    00242     else
    00243     {
    00244        if (argc > argi)
    00245           app = argv[argi++];
    00246        if (argc > argi)
    00247           objid = argv[argi++];
    00248     }
    00249     if (argc > argi)
    00250        function = argv[argi++];
    00251
    00252     if (argc > argi)
    00253     {
    00254        args = &argv[argi];
    00255        argc = argc-argi;
    00256     }
    00257     else
    00258     {
    00259        argc = 0;
    00260     }
    00261
    00262     QCStringList params;
    00263     for( int i = 0; i < argc; i++ )
    00264         params.append( args[ i ] );
    00265     bool ok = findObject( app, objid, function, params );
    00266     if (ok)
    00267        return 0;
    00268     if (bLaunchApp)
    00269     {
    00270        ok = launchApp(app);
    00271        if (!ok)
    00272           return 2;
    00273        ok = findObject( app, objid, function, params );
    00274     }
    00275
    00276     return 1;
    00277 }

This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
Generated on Wed Jan 28 12:42:41 2004 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001