lib

eventslot.cpp

00001 /***************************************************************************
00002  * eventslot.cpp
00003  * This file is part of the KDE project
00004  * copyright (C)2004-2005 by Sebastian Sauer (mail@dipe.org)
00005  *
00006  * This program is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Library General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2 of the License, or (at your option) any later version.
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Library General Public License for more details.
00014  * You should have received a copy of the GNU Library General Public License
00015  * along with this program; see the file COPYING.  If not, write to
00016  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  * Boston, MA 02110-1301, USA.
00018  ***************************************************************************/
00019 
00020 #include "eventslot.h"
00021 
00022 #include "variant.h"
00023 #include "qtobject.h"
00024 
00025 #include <qmetaobject.h>
00026 #include <private/qucom_p.h> // for the Qt QUObject API.
00027 
00028 using namespace Kross::Api;
00029 
00030 EventSlot::EventSlot(const QString& name, QObject* receiver, QCString slot)
00031     : Event<EventSlot>(name)
00032     , m_receiver(receiver)
00033     , m_slot(slot) //QObject::normalizeSignalSlot(slot)
00034 {
00035 }
00036 
00037 EventSlot::~EventSlot()
00038 {
00039 }
00040 
00041 const QString EventSlot::getClassName() const
00042 {
00043     return "Kross::Api::EventSlot";
00044 }
00045 
00046 Object::Ptr EventSlot::call(const QString& /*name*/, List::Ptr arguments)
00047 {
00048 #ifdef KROSS_API_EVENTSLOT_CALL_DEBUG
00049     krossdebug( QString("EventSlot::call() m_slot=%1 arguments=%2").arg(m_slot).arg(arguments->toString()) );
00050 #endif
00051 
00052     QString n = m_slot; //TODO name; //Variant::toString(args->item(0));
00053 
00054     if(n.startsWith("1")) // Remove prefix of SLOT-macros
00055         n.remove(0,1);
00056 
00057     int slotid = m_receiver->metaObject()->findSlot(n.latin1(), false);
00058     if(slotid < 0)
00059         throw Exception::Ptr( new Exception(QString("No such slot '%1'.").arg(n)) );
00060 
00061     QUObject* uo = QtObject::toQUObject(n, arguments);
00062     m_receiver->qt_invoke(slotid, uo); // invoke the slot
00063     delete [] uo;
00064 
00065     return new Variant( QVariant(true,0) );
00066 }
00067 
00068 /*
00069 QCString EventSlot::getSlot(const QCString& signal)
00070 {
00071     QString signature = QString(signal).mid(1);
00072     int startpos = signature.find("(");
00073     int endpos = signature.findRev(")");
00074     if(startpos < 0 || startpos > endpos) {
00075         krosswarning( QString("EventSlot::getSlot(%1) Invalid signal.").arg(signal) );
00076         return QCString();
00077     }
00078     QString signalname = signature.left(startpos);
00079     QString params = signature.mid(startpos + 1, endpos - startpos - 1);
00080     //QStringList paramlist = QStringList::split(",", params);
00081     QCString slot = QString("callback(" + params + ")").latin1(); //normalizeSignalSlot();
00082 
00083     QMetaObject* mo = metaObject();
00084     int slotid = mo->findSlot(slot, false);
00085     if(slotid < 0) {
00086         krossdebug( QString("EventSlot::getSlot(%1) No such slot '%2' avaiable.").arg(signal).arg(slot) );
00087         return QCString();
00088     }
00089 
00090     const QMetaData* md = mo->slot(slotid, false);
00091     if(md->access != QMetaData::Public) {
00092         krossdebug( QString("EventSlot::getSlot(%1) The slot '%2' is not public.").arg(signal).arg(slot) );
00093         return QCString();
00094     }
00095 
00096 //QMember* member = md->member;
00097 //const QUMethod *method = md->method;
00098 
00099     krossdebug( QString("signal=%1 slot=%2 slotid=%3 params=%4 mdname=%5")
00100         .arg(signal).arg(slot).arg(slotid).arg(params).arg(md->name) );
00101     return QCString("1" + slot); // Emulate the SLOT(...) macro by adding as first char a "1".
00102 }
00103 
00104 bool EventSlot::connect(EventManager* eventmanager, QObject* senderobj, const QCString& signal, QString function, const QCString& slot)
00105 {
00106     if(m_sender && ! disconnect())
00107         return false;
00108 
00109     const QCString& myslot = slot.isEmpty() ? getSlot(signal) : slot;
00110     if(! myslot)
00111         return false;
00112 
00113     if(! m_eventmanager) {
00114         EventSlot* eventslot = create(eventmanager);
00115         eventslot->connect(eventmanager, senderobj, signal, function, slot);
00116         m_slots.append(eventslot);
00117         krossdebug( QString("EventSlot::connect(%1, %2, %3) added child EventSlot !!!").arg(senderobj->name()).arg(signal).arg(function) );
00118     }
00119     else {
00120         m_sender = senderobj;
00121         m_signal = signal;
00122         m_function = function;
00123         m_slot = myslot;
00124         if(! QObject::connect((QObject*)senderobj, signal, this, myslot)) {
00125             krossdebug( QString("EventSlot::connect(%1, %2, %3) failed.").arg(senderobj->name()).arg(signal).arg(function) );
00126             return false;
00127         }
00128         krossdebug( QString("EventSlot::connect(%1, %2, %3) successfully connected.").arg(senderobj->name()).arg(signal).arg(function) );
00129     }
00130     return true;
00131 }
00132 
00133 bool EventSlot::disconnect()
00134 {
00135     if(! m_sender) return false;
00136     QObject::disconnect((QObject*)m_sender, m_signal, this, m_slot);
00137     m_sender = 0;
00138     m_signal = 0;
00139     m_slot = 0;
00140     m_function = QString::null;
00141     return true;
00142 }
00143 
00144 void EventSlot::call(const QVariant& variant)
00145 {
00146     krossdebug( QString("EventSlot::call() sender='%1' signal='%2' function='%3'")
00147                  .arg(m_sender->name()).arg(m_signal).arg(m_function) );
00148 
00149     Kross::Api::List* arglist = 0;
00150 
00151     QValueList<Kross::Api::Object*> args;
00152     if(variant.isValid()) {
00153         args.append(Kross::Api::Variant::create(variant));
00154         arglist = Kross::Api::List::create(args);
00155     }
00156 
00157     try {
00158         m_eventmanager->m_scriptcontainer->callFunction(m_function, arglist);
00159     }
00160     catch(Exception& e) {
00161         //TODO add hadError(), getError() and setError()
00162         krossdebug( QString("EXCEPTION in EventSlot::call('%1') type='%2' description='%3'").arg(variant.toString()).arg(e.type()).arg(e.description()) );
00163     }
00164 }
00165 
00166 void EventSlot::callback() {
00167     call(QVariant()); }
00168 void EventSlot::callback(short s) {
00169     call(QVariant(s)); }
00170 void EventSlot::callback(int i) {
00171     call(QVariant(i)); }
00172 void EventSlot::callback(int i1, int i2) {
00173     call(QVariant( QValueList<QVariant>() << i1 << i2 )); }
00174 void EventSlot::callback(int i1, int i2, int i3) {
00175     call(QVariant( QValueList<QVariant>() << i1 << i2 << i3 )); }
00176 void EventSlot::callback(int i1, int i2, int i3, int i4) {
00177     call(QVariant( QValueList<QVariant>() << i1 << i2 << i3 << i4 )); }
00178 void EventSlot::callback(int i1, int i2, int i3, int i4, int i5) {
00179     call(QVariant( QValueList<QVariant>() << i1 << i2 << i3 << i4 << i5 )); }
00180 void EventSlot::callback(int i1, int i2, int i3, int i4, bool b) {
00181     call(QVariant( QValueList<QVariant>() << i1 << i2 << i3 << i4 << b )); }
00182 void EventSlot::callback(int i1, bool b) {
00183     call(QVariant( QValueList<QVariant>() << i1 << b )); }
00184 void EventSlot::callback(int i1, int i2, bool b) {
00185     call(QVariant( QValueList<QVariant>() << i1 << i2 << b )); }
00186 void EventSlot::callback(int i1, int i2, const QString& s) {
00187     call(QVariant( QValueList<QVariant>() << i1 << i2 << s )); }
00188 void EventSlot::callback(uint i) {
00189     call(QVariant(i)); }
00190 void EventSlot::callback(long l) {
00191     call(QVariant((Q_LLONG)l)); }
00192 void EventSlot::callback(ulong l) {
00193     call(QVariant((Q_ULLONG)l)); }
00194 void EventSlot::callback(double d) {
00195     call(QVariant(d)); }
00196 void EventSlot::callback(const char* c) {
00197     call(QVariant(c)); }
00198 void EventSlot::callback(bool b) {
00199     call(QVariant(b)); }
00200 void EventSlot::callback(const QString& s) {
00201     call(QVariant(s)); }
00202 void EventSlot::callback(const QString& s, int i) {
00203     call(QVariant( QValueList<QVariant>() << s << i )); }
00204 void EventSlot::callback(const QString& s, int i1, int i2) {
00205     call(QVariant( QValueList<QVariant>() << s << i1 << i2 )); }
00206 void EventSlot::callback(const QString& s, uint i) {
00207     call(QVariant( QValueList<QVariant>() << s << i )); }
00208 void EventSlot::callback(const QString& s, bool b) {
00209     call(QVariant( QValueList<QVariant>() << s << b )); }
00210 void EventSlot::callback(const QString& s, bool b1, bool b2) {
00211     call(QVariant( QValueList<QVariant>() << s << b1 << b2 )); }
00212 void EventSlot::callback(const QString& s, bool b, int i) {
00213     call(QVariant( QValueList<QVariant>() << s << b << i )); }
00214 void EventSlot::callback(const QString& s1, const QString& s2) {
00215     call(QVariant( QValueList<QVariant>() << s1 << s2 )); }
00216 void EventSlot::callback(const QString& s1, const QString& s2, const QString& s3) {
00217     call(QVariant( QValueList<QVariant>() << s1 << s2 << s3 )); }
00218 void EventSlot::callback(const QStringList& sl) {
00219     call(QVariant(sl)); }
00220 void EventSlot::callback(const QVariant& variant) {
00221     call(variant); }
00222 */
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