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# kjavaappletviewer.cpp

    00001 /* This file is part of the KDE project
    00002  *
    00003  * Copyright (C) 2003 Koos Vriezen <koos.vriezen@xs4all.nl>
    00004  *
    00005  * This library is free software; you can redistribute it and/or
    00006  * modify it under the terms of the GNU Library General Public
    00007  * License as published by the Free Software Foundation; either
    00008  * version 2 of the License, or (at your option) any later version.
    00009  *
    00010  * This library 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  *
    00015  * You should have received a copy of the GNU Library General Public License
    00016  * along with this library; see the file COPYING.LIB.  If not, write to
    00017  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00018  * Boston, MA 02111-1307, USA.
    00019  */
    00020 #include <stdio.h>
    00021
    00022 #ifdef KDE_USE_FINAL
    00023 #undef Always
    00024 #endif
    00025 #include <qdir.h>
    00026 #include <qtable.h>
    00027 #include <qpair.h>
    00028 #include <qtimer.h>
    00029 #include <qguardedptr.h>
    00030
    00031 #include <klibloader.h>
    00032 #include <kaboutdata.h>
    00033 #include <kstaticdeleter.h>
    00034 #include <klocale.h>
    00035 #include <kapplication.h>
    00036 #include <kdebug.h>
    00037 #include <kconfig.h>
    00038 #include <kio/authinfo.h>
    00039 #include <dcopclient.h>
    00040
    00041 #include "kjavaappletwidget.h"
    00042 #include "kjavaappletviewer.h"
    00043 #include "kjavaappletserver.h"
    00044
    00045
    00046 K_EXPORT_COMPONENT_FACTORY (kjavaappletviewer, KJavaAppletViewerFactory)
    00047
    00048 KInstance *KJavaAppletViewerFactory::s_instance = 0;
    00049
    00050 KJavaAppletViewerFactory::KJavaAppletViewerFactory () {
    00051     s_instance = new KInstance ("KJavaAppletViewer");
    00052 }
    00053
    00054 KJavaAppletViewerFactory::~KJavaAppletViewerFactory () {
    00055     delete s_instance;
    00056 }
    00057
    00058 KParts::Part *KJavaAppletViewerFactory::createPartObject
    00059   (QWidget *wparent, const char *wname,
    00060    QObject *parent, const char * name, const char *, const QStringList & args) {
    00061     return new KJavaAppletViewer (wparent, wname, parent, name, args);
    00062 }
    00063
    00064 //-----------------------------------------------------------------------------
    00065
    00066 class KJavaServerMaintainer;
    00067 static KJavaServerMaintainer * serverMaintainer = 0;
    00068
    00069 class KJavaServerMaintainer {
    00070 public:
    00071     KJavaServerMaintainer () { }
    00072     ~KJavaServerMaintainer ();
    00073
    00074     KJavaAppletContext * getContext (QObject*, const QString &);
    00075     void releaseContext (QObject*, const QString &);
    00076     void setServer (KJavaAppletServer * s);
    00077 private:
    00078     typedef QMap <QPair <QObject*, QString>, QPair <KJavaAppletContext*, int> >
    00079             ContextMap;
    00080     ContextMap m_contextmap;
    00081     QGuardedPtr <KJavaAppletServer> server;
    00082 };
    00083
    00084 KJavaServerMaintainer::~KJavaServerMaintainer () {
    00085     delete server;
    00086 }
    00087
    00088 KJavaAppletContext * KJavaServerMaintainer::getContext (QObject * w, const QString & doc) {
    00089     ContextMap::key_type key = qMakePair (w, doc);
    00090     ContextMap::iterator it = m_contextmap.find (key);
    00091     if (it != m_contextmap.end ()) {
    00092         ++((*it).second);
    00093         return (*it).first;
    00094     }
    00095     KJavaAppletContext* const context = new KJavaAppletContext ();
    00096     m_contextmap.insert (key, qMakePair(context, 1));
    00097     return context;
    00098 }
    00099
    00100 void KJavaServerMaintainer::releaseContext (QObject * w, const QString & doc) {
    00101     ContextMap::iterator it = m_contextmap.find (qMakePair (w, doc));
    00102     if (it != m_contextmap.end () && --(*it).second <= 0) {
    00103         kdDebug(6100) << "KJavaServerMaintainer::releaseContext" << endl;
    00104         (*it).first->deleteLater ();
    00105         m_contextmap.remove (it);
    00106     }
    00107 }
    00108
    00109 inline void KJavaServerMaintainer::setServer (KJavaAppletServer * s) {
    00110     if (!server)
    00111         server = s;
    00112 }
    00113
    00114 static KStaticDeleter <KJavaServerMaintainer> serverMaintainerDeleter;
    00115
    00116 //-----------------------------------------------------------------------------
    00117
    00118 AppletParameterDialog::AppletParameterDialog (KJavaAppletWidget * parent)
    00119     : KDialogBase (parent, "paramdialog", true, i18n ("Applet Parameters"),
    00120                    KDialogBase::Close, KDialogBase::Close, true),
    00121       m_appletWidget (parent) {
    00122     KJavaApplet* const applet = parent->applet ();
    00123     table = new QTable (30, 2, this);
    00124     table->setMinimumSize (QSize (600, 400));
    00125     table->setColumnWidth (0, 200);
    00126     table->setColumnWidth (1, 340);
    00127     QHeader* const header = table->horizontalHeader();
    00128     header->setLabel (0, i18n ("Parameter"));
    00129     header->setLabel (1, i18n ("Value"));
    00130     QTableItem * tit = new QTableItem (table, QTableItem::Never, i18n("Class"));
    00131     table->setItem (0, 0, tit);
    00132     tit = new QTableItem(table, QTableItem::Always, applet->appletClass());
    00133     table->setItem (0, 1, tit);
    00134     tit = new QTableItem (table, QTableItem::Never, i18n ("Base URL"));
    00135     table->setItem (1, 0, tit);
    00136     tit = new QTableItem(table, QTableItem::Always, applet->baseURL());
    00137     table->setItem (1, 1, tit);
    00138     tit = new QTableItem (table, QTableItem::Never, i18n ("Archives"));
    00139     table->setItem (2, 0, tit);
    00140     tit = new QTableItem(table, QTableItem::Always, applet->archives());
    00141     table->setItem (2, 1, tit);
    00142     QMap<QString,QString>::const_iterator it = applet->getParams().begin();
    00143     const QMap<QString,QString>::const_iterator itEnd = applet->getParams().end();
    00144     for (int count = 2; it != itEnd; ++it) {
    00145         tit = new QTableItem (table, QTableItem::Always, it.key ());
    00146         table->setItem (++count, 0, tit);
    00147         tit = new QTableItem(table, QTableItem::Always, it.data ());
    00148         table->setItem (count, 1, tit);
    00149     }
    00150     setMainWidget (table);
    00151 }
    00152
    00153 void AppletParameterDialog::slotClose () {
    00154     table->selectCells (0, 0, 0, 0);
    00155     KJavaApplet* const applet = m_appletWidget->applet ();
    00156     applet->setAppletClass (table->item (0, 1)->text ());
    00157     applet->setBaseURL (table->item (1, 1)->text ());
    00158     applet->setArchives (table->item (2, 1)->text ());
    00159     const int lim = table->numRows();
    00160     for (int i = 3; i < lim; ++i) {
    00161         if (table->item (i, 0) && table->item (i, 1) && !table->item (i, 0)->text ().isEmpty ())
    00162             applet->setParameter (table->item (i, 0)->text (),
    00163                                   table->item (i, 1)->text ());
    00164     }
    00165     hide ();
    00166 }
    00167 //-----------------------------------------------------------------------------
    00168
    00169 class CoverWidget : public QWidget {
    00170     KJavaAppletWidget * m_appletwidget;
    00171 public:
    00172     CoverWidget (QWidget *);
    00173     ~CoverWidget () {}
    00174     KJavaAppletWidget * appletWidget () const;
    00175 protected:
    00176     void resizeEvent (QResizeEvent * e);
    00177 };
    00178
    00179 inline CoverWidget::CoverWidget (QWidget * parent)
    00180  : QWidget (parent, "KJavaAppletViewer Widget")
    00181 {
    00182     m_appletwidget = new KJavaAppletWidget (this);
    00183     setFocusProxy (m_appletwidget);
    00184 }
    00185
    00186 inline KJavaAppletWidget * CoverWidget::appletWidget () const {
    00187     return m_appletwidget;
    00188 }
    00189
    00190 void CoverWidget::resizeEvent (QResizeEvent * e) {
    00191     m_appletwidget->resize (e->size().width(), e->size().height());
    00192 }
    00193
    00194 //-----------------------------------------------------------------------------
    00195
    00196 KJavaAppletViewer::KJavaAppletViewer (QWidget * wparent, const char *,
    00197                  QObject * parent, const char * name, const QStringList & args)
    00198  : KParts::ReadOnlyPart (parent, name),
    00199    m_browserextension (new KJavaAppletViewerBrowserExtension (this)),
    00200    m_liveconnect (new KJavaAppletViewerLiveConnectExtension (this)),
    00201    m_closed (true)
    00202 {
    00203     if (!serverMaintainer) {
    00204         serverMaintainerDeleter.setObject (serverMaintainer,
    00205                                            new KJavaServerMaintainer);
    00206     }
    00207     m_view = new CoverWidget (wparent);
    00208     QString classname, classid, codebase, khtml_codebase, src_param;
    00209     int width = -1;
    00210     int height = -1;
    00211     KJavaApplet* const applet = m_view->appletWidget()->applet ();
    00212     QStringList::const_iterator it = args.begin();
    00213     const QStringList::const_iterator itEnd = args.end();
    00214     for ( ; it != itEnd; ++it) {
    00215         const int equalPos = (*it).find("=");
    00216         if (equalPos > 0) {
    00217             const QString name = (*it).left (equalPos).upper ();
    00218             QString value = (*it).right ((*it).length () - equalPos - 1);
    00219             if (value.at(0)=='\"')
    00220                 value = value.right (value.length () - 1);
    00221             if (value.at (value.length () - 1) == '\"')
    00222                 value.truncate (value.length () - 1);
    00223             kdDebug(6100) << "name=" << name << " value=" << value << endl;
    00224             if (!name.isEmpty()) {
    00225                 const QString name_lower = name.lower ();
    00226                 if (name == "__KHTML__PLUGINBASEURL") {
    00227                     baseurl = KURL (KURL (value), QString (".")).url ();
    00228                 } else if (name == "__KHTML__CODEBASE")
    00229                     khtml_codebase = value;
    00230                 else if (name_lower == QString::fromLatin1("codebase") ||
    00231                          name_lower == QString::fromLatin1("java_codebase")) {
    00232                     if (!value.isEmpty ())
    00233                         codebase = value;
    00234                 } else if (name == "__KHTML__CLASSID")
    00235                 //else if (name.lower()==QString::fromLatin1("classid"))
    00236                     classid = value;
    00237                 else if (name_lower == QString::fromLatin1("code") ||
    00238                          name_lower == QString::fromLatin1("java_code"))
    00239                     classname = value;
    00240                 else if (name_lower == QString::fromLatin1("src"))
    00241                     src_param = value;
    00242                 else if (name_lower == QString::fromLatin1("archive") ||
    00243                          name_lower == QString::fromLatin1("java_archive") ||
    00244                          name_lower.startsWith ("cache_archive"))
    00245                     applet->setArchives (value);
    00246                 else if (name_lower == QString::fromLatin1("name"))
    00247                     applet->setAppletName (value);
    00248                 else if (name_lower == QString::fromLatin1("width"))
    00249                     width = value.toInt();
    00250                 else if (name_lower == QString::fromLatin1("height"))
    00251                     height = value.toInt();
    00252                 if (!name.startsWith ("__KHTML__")) {
    00253                     applet->setParameter (name, value);
    00254                 }
    00255             }
    00256         }
    00257     }
    00258     if (!classid.isEmpty ()) {
    00259         applet->setParameter ("CLSID", classid);
    00260         kdDebug(6100) << "classid=" << classid << classid.startsWith("clsid:")<< endl;
    00261         if (classid.startsWith ("clsid:"))
    00262             // codeBase contains the URL to the plugin page
    00263             khtml_codebase = baseurl;
    00264         else if (classname.isEmpty () && classid.startsWith ("java:"))
    00265             classname = classid.mid(5);
    00266     }
    00267     if (classname.isEmpty ())
    00268         classname = src_param;
    00269     else if (!src_param.isEmpty ())
    00270         applet->setParameter (QString ("SRC"), src_param);
    00271     if (codebase.isEmpty ())
    00272         codebase = khtml_codebase;
    00273     if (baseurl.isEmpty ()) {
    00274         // not embeded in khtml
    00275         QString pwd = QDir().absPath ();
    00276         if (!pwd.endsWith (QChar (QDir::separator ())))
    00277             pwd += QDir::separator ();
    00278         baseurl = KURL (KURL (pwd), codebase).url ();
    00279     }
    00280     if (width > 0 && height > 0) {
    00281         m_view->resize (width, height);
    00282         applet->setSize( QSize( width, height ) );
    00283     }
    00284     applet->setBaseURL (baseurl);
    00285     // check codebase first
    00286     const KURL kbaseURL( baseurl );
    00287     const KURL newURL(kbaseURL, codebase);
    00288     if (kapp->authorizeURLAction("redirect", KURL(baseurl), newURL))
    00289         applet->setCodeBase (newURL.url());
    00290     applet->setAppletClass (classname);
    00291     KJavaAppletContext* const cxt = serverMaintainer->getContext (parent, baseurl);
    00292     applet->setAppletContext (cxt);
    00293
    00294     KJavaAppletServer* const server = cxt->getServer ();
    00295
    00296     serverMaintainer->setServer (server);
    00297
    00298     if (!server->usingKIO ()) {
    00299         /* if this page needs authentication */
    00300         KIO::AuthInfo info;
    00301         QString errorMsg;
    00302         QCString replyType;
    00303         QByteArray params;
    00304         QByteArray reply;
    00305         KIO::AuthInfo authResult;
    00306
    00307         //(void) dcopClient(); // Make sure to have a dcop client.
    00308         info.url = baseurl;
    00309         info.verifyPath = true;
    00310
    00311         QDataStream stream(params, IO_WriteOnly);
    00312         stream << info << m_view->topLevelWidget()->winId();
    00313
    00314         if (!kapp->dcopClient ()->call( "kded", "kpasswdserver", "checkAuthInfo(KIO::AuthInfo, long int)", params, replyType, reply ) ) {
    00315             kdWarning() << "Can't communicate with kded_kpasswdserver!" << endl;
    00316         } else if ( replyType == "KIO::AuthInfo" ) {
    00317             QDataStream stream2( reply, IO_ReadOnly );
    00318             stream2 >> authResult;
    00319             applet->setUser (authResult.username);
    00320             applet->setPassword (authResult.password);
    00321             applet->setAuthName (authResult.realmValue);
    00322         }
    00323     }
    00324
    00325     /* install event filter for close events */
    00326     if (wparent)
    00327         wparent->topLevelWidget ()->installEventFilter (this);
    00328
    00329     setInstance (KJavaAppletViewerFactory::instance ());
    00330     KParts::Part::setWidget (m_view);
    00331
    00332     connect (applet->getContext(), SIGNAL(appletLoaded()), this, SLOT(appletLoaded()));
    00333     connect (applet->getContext(), SIGNAL(showDocument(const QString&, const QString&)), m_browserextension, SLOT(showDocument(const QString&, const QString&)));
    00334     connect (applet->getContext(), SIGNAL(showStatus(const QString &)), this, SLOT(infoMessage(const QString &)));
    00335     connect (applet, SIGNAL(jsEvent (const QStringList &)), m_liveconnect, SLOT(jsEvent (const QStringList &)));
    00336 }
    00337
    00338 bool KJavaAppletViewer::eventFilter (QObject *o, QEvent *e) {
    00339     if (m_liveconnect->jsSessions () > 0) {
    00340         switch (e->type()) {
    00341             case QEvent::Destroy:
    00342             case QEvent::Close:
    00343             case QEvent::Quit:
    00344                 return true;
    00345             default:
    00346                 break;
    00347         }
    00348     }
    00349     return KParts::ReadOnlyPart::eventFilter(o,e);
    00350 }
    00351
    00352 KJavaAppletViewer::~KJavaAppletViewer () {
    00353     m_view = 0L;
    00354     serverMaintainer->releaseContext (parent(), baseurl);
    00355 }
    00356
    00357 bool KJavaAppletViewer::openURL (const KURL & url) {
    00358     if (!m_view) return false;
    00359     m_closed = false;
    00360     KJavaAppletWidget* const w = m_view->appletWidget ();
    00361     KJavaApplet* const applet = w->applet ();
    00362     if (applet->isCreated ())
    00363         applet->stop ();
    00364     if (applet->appletClass ().isEmpty ()) {
    00365         // preview without setting a class?
    00366         if (applet->baseURL ().isEmpty ()) {
    00367             applet->setAppletClass (url.fileName ());
    00368             applet->setBaseURL (url.upURL ().url ());
    00369         } else
    00370             applet->setAppletClass (url.url ());
    00371         AppletParameterDialog (w).exec ();
    00372         applet->setSize (w->sizeHint());
    00373     }
    00374     // delay showApplet if size is unknown and m_view not shown
    00375     if (applet->size().width() > 0 || m_view->isVisible())
    00376         w->showApplet ();
    00377     else
    00378         QTimer::singleShot (10, this, SLOT (delayedCreateTimeOut ()));
    00379     if (!applet->failed ())
    00380         emit started (0L);
    00381     return url.isValid ();
    00382 }
    00383
    00384 bool KJavaAppletViewer::closeURL () {
    00385     kdDebug(6100) << "closeURL" << endl;
    00386     m_closed = true;
    00387     KJavaApplet* const applet = m_view->appletWidget ()->applet ();
    00388     if (applet->isCreated ())
    00389         applet->stop ();
    00390     applet->getContext()->getServer()->endWaitForReturnData();
    00391     return true;
    00392 }
    00393
    00394 bool KJavaAppletViewer::appletAlive () const {
    00395     return !m_closed && m_view &&
    00396            m_view->appletWidget ()->applet () &&
    00397            m_view->appletWidget ()->applet ()->isAlive ();
    00398 }
    00399
    00400 bool KJavaAppletViewer::openFile () {
    00401     return false;
    00402 }
    00403
    00404 void KJavaAppletViewer::delayedCreateTimeOut () {
    00405     KJavaAppletWidget* const w = m_view->appletWidget ();
    00406     if (!w->applet ()->isCreated () && !m_closed)
    00407         w->showApplet ();
    00408 }
    00409
    00410 void KJavaAppletViewer::appletLoaded () {
    00411     if (!m_view) return;
    00412     KJavaApplet* const applet = m_view->appletWidget ()->applet ();
    00413     if (applet->isAlive() || applet->failed())
    00414         emit completed();
    00415 }
    00416
    00417 void KJavaAppletViewer::infoMessage (const QString & msg) {
    00418     m_browserextension->infoMessage(msg);
    00419 }
    00420
    00421 KAboutData* KJavaAppletViewer::createAboutData () {
    00422     return new KAboutData("KJavaAppletViewer", I18N_NOOP("KDE Java Applet Plugin"), "1.0");
    00423 }
    00424
    00425 //---------------------------------------------------------------------
    00426
    00427 KJavaAppletViewerBrowserExtension::KJavaAppletViewerBrowserExtension (KJavaAppletViewer * parent)
    00428   : KParts::BrowserExtension (parent, "KJavaAppletViewer Browser Extension") {
    00429 }
    00430
    00431 void KJavaAppletViewerBrowserExtension::urlChanged (const QString & url) {
    00432     emit setLocationBarURL (url);
    00433 }
    00434
    00435 void KJavaAppletViewerBrowserExtension::setLoadingProgress (int percentage) {
    00436     emit loadingProgress (percentage);
    00437 }
    00438
    00439 void KJavaAppletViewerBrowserExtension::setURLArgs (const KParts::URLArgs & /*args*/) {
    00440 }
    00441
    00442 void KJavaAppletViewerBrowserExtension::saveState (QDataStream & stream) {
    00443     KJavaApplet* const applet = static_cast<KJavaAppletViewer*>(parent())->view()->appletWidget ()->applet ();
    00444     stream << applet->appletClass();
    00445     stream << applet->baseURL();
    00446     stream << applet->archives();
    00447     stream << applet->getParams().size ();
    00448     QMap<QString,QString>::const_iterator it = applet->getParams().begin();
    00449     const QMap<QString,QString>::const_iterator itEnd = applet->getParams().end();
    00450     for ( ; it != itEnd; ++it) {
    00451         stream << it.key ();
    00452         stream << it.data ();
    00453     }
    00454 }
    00455
    00456 void KJavaAppletViewerBrowserExtension::restoreState (QDataStream & stream) {
    00457     KJavaAppletWidget* const w = static_cast<KJavaAppletViewer*>(parent())->view()->appletWidget();
    00458     KJavaApplet* const applet = w->applet ();
    00459     QString key, val;
    00460     int paramcount;
    00461     stream >> val;
    00462     applet->setAppletClass (val);
    00463     stream >> val;
    00464     applet->setBaseURL (val);
    00465     stream >> val;
    00466     applet->setArchives (val);
    00467     stream >> paramcount;
    00468     for (int i = 0; i < paramcount; ++i) {
    00469         stream >> key;
    00470         stream >> val;
    00471         applet->setParameter (key, val);
    00472         kdDebug(6100) << "restoreState key:" << key << " val:" << val << endl;
    00473     }
    00474     applet->setSize (w->sizeHint ());
    00475     if (w->isVisible())
    00476         w->showApplet ();
    00477 }
    00478
    00479 void KJavaAppletViewerBrowserExtension::showDocument (const QString & doc,
    00480                                                       const QString & frame) {
    00481     const KURL url (doc);
    00482     KParts::URLArgs args;
    00483     args.frameName = frame;
    00484     emit openURLRequest (url, args);
    00485 }
    00486
    00487 //-----------------------------------------------------------------------------
    00488
    00489 KJavaAppletViewerLiveConnectExtension::KJavaAppletViewerLiveConnectExtension(KJavaAppletViewer * parent)
    00490     : KParts::LiveConnectExtension (parent, "KJavaAppletViewer LiveConnect Extension"), m_viewer (parent) {
    00491 }
    00492
    00493 bool KJavaAppletViewerLiveConnectExtension::get (
    00494         const unsigned long objid, const QString & name,
    00495         KParts::LiveConnectExtension::Type & type,
    00496         unsigned long & rid, QString & value)
    00497 {
    00498     if (!m_viewer->appletAlive ())
    00499         return false;
    00500     QStringList args, ret_args;
    00501     KJavaApplet* const applet = m_viewer->view ()->appletWidget ()->applet ();
    00502     args.append (QString::number (applet->appletId ()));
    00503     args.append (QString::number ((int) objid));
    00504     args.append (name);
    00505     m_jssessions++;
    00506     const bool ret = applet->getContext()->getMember (args, ret_args);
    00507     m_jssessions--;
    00508     if (!ret || ret_args.count() != 3) return false;
    00509     bool ok;
    00510     int itype = ret_args[0].toInt (&ok);
    00511     if (!ok || itype < 0) return false;
    00512     type = (KParts::LiveConnectExtension::Type) itype;
    00513     rid = ret_args[1].toInt (&ok);
    00514     if (!ok) return false;
    00515     value = ret_args[2];
    00516     return true;
    00517 }
    00518
    00519 bool KJavaAppletViewerLiveConnectExtension::put(const unsigned long objid, const QString & name, const QString & value)
    00520 {
    00521     if (!m_viewer->appletAlive ())
    00522         return false;
    00523     QStringList args;
    00524     KJavaApplet* const applet = m_viewer->view ()->appletWidget ()->applet ();
    00525     args.append (QString::number (applet->appletId ()));
    00526     args.append (QString::number ((int) objid));
    00527     args.append (name);
    00528     args.append (value);
    00529     ++m_jssessions;
    00530     const bool ret = applet->getContext()->putMember (args);
    00531     --m_jssessions;
    00532     return ret;
    00533 }
    00534
    00535 bool KJavaAppletViewerLiveConnectExtension::call( const unsigned long objid, const QString & func, const QStringList & fargs, KParts::LiveConnectExtension::Type & type, unsigned long & retobjid, QString & value )
    00536 {
    00537     if (!m_viewer->appletAlive ())
    00538         return false;
    00539     KJavaApplet* const applet = m_viewer->view ()->appletWidget ()->applet ();
    00540     QStringList args, ret_args;
    00541     args.append (QString::number (applet->appletId ()));
    00542     args.append (QString::number ((int) objid));
    00543     args.append (func);
    00544     {
    00545         QStringList::const_iterator it = fargs.begin();
    00546         const QStringList::const_iterator itEnd = fargs.end();
    00547     for ( ; it != itEnd; ++it)
    00548             args.append(*it);
    00549     }
    00550
    00551     ++m_jssessions;
    00552     const bool ret = applet->getContext()->callMember (args, ret_args);
    00553     --m_jssessions;
    00554     if (!ret || ret_args.count () != 3) return false;
    00555     bool ok;
    00556     const int itype = ret_args[0].toInt (&ok);
    00557     if (!ok || itype < 0) return false;
    00558     type = (KParts::LiveConnectExtension::Type) itype;
    00559     retobjid = ret_args[1].toInt (&ok);
    00560     if (!ok) return false;
    00561     value = ret_args[2];
    00562     return true;
    00563 }
    00564
    00565 void KJavaAppletViewerLiveConnectExtension::unregister(const unsigned long objid)
    00566 {
    00567     if (!m_viewer->view () || !m_viewer->view ())
    00568         return;
    00569     KJavaApplet* const applet = m_viewer->view ()->appletWidget ()->applet ();
    00570     if (!applet || objid == 0) {
    00571         // typically a gc after a function call on the applet,
    00572         // no need to send to the jvm
    00573         return;
    00574     }
    00575     QStringList args;
    00576     args.append (QString::number (applet->appletId ()));
    00577     args.append (QString::number ((int) objid));
    00578     applet->getContext()->derefObject (args);
    00579 }
    00580
    00581 void KJavaAppletViewerLiveConnectExtension::jsEvent (const QStringList & args) {
    00582     if (args.count () < 2 || !m_viewer->appletAlive ())
    00583         return;
    00584     bool ok;
    00585     QStringList::ConstIterator it = args.begin();
    00586     const QStringList::ConstIterator itEnd = args.end();
    00587     const unsigned long objid = (*it).toInt(&ok);
    00588     ++it;
    00589     const QString event = (*it);
    00590     ++it;
    00591     KParts::LiveConnectExtension::ArgList arglist;
    00592
    00593     for (; it != itEnd; ++it) {
    00594         // take a deep breath here
    00595         const QStringList::ConstIterator prev = it++;
    00596     arglist.push_back(KParts::LiveConnectExtension::ArgList::value_type((KParts::LiveConnectExtension::Type) (*prev).toInt(), (*it)));
    00597     }
    00598     emit partEvent (objid, event, arglist);
    00599 }
    00600
    00601 int KJavaAppletViewerLiveConnectExtension::m_jssessions = 0;
    00602
    00603 //-----------------------------------------------------------------------------
    00604
    00605 #include "kjavaappletviewer.moc"

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