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-rw-r--r--kicker/proxy/extensionproxy.cpp401
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diff --git a/kicker/proxy/extensionproxy.cpp b/kicker/proxy/extensionproxy.cpp
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+/*****************************************************************
+
+Copyright (c) 2000 Matthias Elter <elter@kde.org>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTDHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+******************************************************************/
+
+#include <stdlib.h>
+
+#include <qstring.h>
+#include <qfile.h>
+#include <qxembed.h>
+
+#include <kapplication.h>
+#include <kglobal.h>
+#include <klibloader.h>
+#include <klocale.h>
+#include <kstandarddirs.h>
+#include <kcmdlineargs.h>
+#include <kdebug.h>
+#include <kpanelextension.h>
+#include <kaboutdata.h>
+#include <qfileinfo.h>
+#include <dcopclient.h>
+
+#include "appletinfo.h"
+#include "extensionproxy.h"
+#include "extensionproxy.moc"
+
+#include <X11/Xlib.h>
+
+
+static KCmdLineOptions options[] =
+{
+ { "+desktopfile", I18N_NOOP("The extension's desktop file"), 0 },
+ { "configfile <file>", I18N_NOOP("The config file to be used"), 0 },
+ { "callbackid <id>", I18N_NOOP("DCOP callback id of the extension container"), 0 },
+ KCmdLineLastOption
+};
+
+extern "C" KDE_EXPORT int kdemain( int argc, char ** argv )
+{
+ KAboutData aboutData( "extensionproxy", I18N_NOOP("Panel Extension Proxy")
+ , "v0.1.0"
+ ,I18N_NOOP("Panel extension proxy")
+ , KAboutData::License_BSD
+ , "(c) 2000, The KDE Developers");
+ KCmdLineArgs::init(argc, argv, &aboutData );
+ aboutData.addAuthor("Matthias Elter",0, "elter@kde.org");
+ aboutData.addAuthor("Matthias Ettrich",0, "ettrich@kde.org");
+ KApplication::addCmdLineOptions();
+ KCmdLineArgs::addCmdLineOptions(options); // Add our own options.
+
+ KApplication a;
+ a.disableSessionManagement();
+
+ KGlobal::dirs()->addResourceType("extensions", KStandardDirs::kde_default("data") +
+ "kicker/extensions");
+
+ // setup proxy object
+ ExtensionProxy proxy(0, "extensionproxywidget");
+
+ // parse cmdline args
+ KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
+
+ // sanity check
+ if ( args->count() == 0 )
+ KCmdLineArgs::usage(i18n("No desktop file specified") );
+
+ // do we have a callback id?
+ if (args->getOption("callbackid").isNull()) {
+ kdError() << "Callback ID is null. " << endl;
+ exit(0);
+ }
+
+ // Perhaps we should use a konsole-like solution here (shell, list of args...)
+ QCString desktopfile = QCString( args->arg(0) );
+
+ // load extension DSO
+ proxy.loadExtension( desktopfile, args->getOption("configfile"));
+
+ // dock into our extension container
+ proxy.dock(args->getOption("callbackid"));
+
+ return a.exec();
+}
+
+ExtensionProxy::ExtensionProxy(QObject* parent, const char* name)
+ : QObject(parent, name)
+ , DCOPObject("ExtensionProxy")
+ , _info(0)
+ , _extension(0)
+{
+ // try to attach to DCOP server
+ if (!kapp->dcopClient()->attach()) {
+ kdError() << "Failed to attach to DCOP server." << endl;
+ exit(0);
+ }
+
+ if (!kapp->dcopClient()->registerAs("extension_proxy", true)) {
+ kdError() << "Failed to register at DCOP server." << endl;
+ exit(0);
+ }
+}
+
+ExtensionProxy::~ExtensionProxy()
+{
+ kapp->dcopClient()->detach();
+}
+
+void ExtensionProxy::loadExtension(const QCString& desktopFile, const QCString& configFile)
+{
+ QString df;
+
+ // try simple path first
+ QFileInfo finfo( desktopFile );
+ if ( finfo.exists() ) {
+ df = finfo.absFilePath();
+ } else {
+ // locate desktop file
+ df = KGlobal::dirs()->findResource("extensions", QString(desktopFile));
+ }
+
+ QFile file(df);
+ // does the config file exist?
+ if (df.isNull() || !file.exists()) {
+ kdError() << "Failed to locate extension desktop file: " << desktopFile << endl;
+ exit(0);
+ }
+
+ // create AppletInfo instance
+ _info = new AppletInfo(df);
+
+ // set the config file
+ if (!configFile.isNull())
+ _info->setConfigFile(configFile);
+
+ // load extension DSO
+ _extension = loadExtension(*_info);
+
+ // sanity check
+ if (!_extension) {
+ kdError() << "Failed to load extension: " << _info->library() << endl;
+ exit(0);
+ }
+
+ // connect updateLayout signal
+ connect(_extension, SIGNAL(updateLayout()), SLOT(slotUpdateLayout()));
+}
+
+KPanelExtension* ExtensionProxy::loadExtension(const AppletInfo& info)
+{
+ KLibLoader* loader = KLibLoader::self();
+ KLibrary* lib = loader->library(QFile::encodeName(info.library()));
+
+ if (!lib)
+ {
+ kdWarning() << "cannot open extension: " << info.library()
+ << " because of " << loader->lastErrorMessage() << endl;
+ return 0;
+ }
+
+ KPanelExtension* (*init_ptr)(QWidget *, const QString&);
+ init_ptr = (KPanelExtension* (*)(QWidget *, const QString&))lib->symbol( "init" );
+
+ if (!init_ptr)
+ {
+ kdWarning() << info.library() << " is not a kicker extension!" << endl;
+ return 0;
+ }
+
+ return init_ptr(0, info.configFile());
+}
+
+void ExtensionProxy::dock(const QCString& callbackID)
+{
+ kdDebug(1210) << "Callback ID: " << callbackID << endl;
+
+ _callbackID = callbackID;
+
+ // try to attach to DCOP server
+ DCOPClient* dcop = kapp->dcopClient();
+
+ dcop->setNotifications(true);
+ connect(dcop, SIGNAL(applicationRemoved(const QCString&)),
+ SLOT(slotApplicationRemoved(const QCString&)));
+
+ WId win;
+
+ // get docked
+ {
+ QCString replyType;
+ QByteArray data, replyData;
+ QDataStream dataStream( data, IO_WriteOnly );
+
+ int actions = 0;
+ if(_extension) actions = _extension->actions();
+ dataStream << actions;
+
+ int type = 0;
+ if (_extension) type = static_cast<int>(_extension->type());
+ dataStream << type;
+
+ // we use "call" to know whether it was sucessful
+
+ int screen_number = 0;
+ if (qt_xdisplay())
+ screen_number = DefaultScreen(qt_xdisplay());
+ QCString appname;
+ if (screen_number == 0)
+ appname = "kicker";
+ else
+ appname.sprintf("kicker-screen-%d", screen_number);
+
+ if ( !dcop->call(appname, _callbackID, "dockRequest(int,int)",
+ data, replyType, replyData ) )
+ {
+ kdError() << "Failed to dock into the panel." << endl;
+ exit(0);
+ }
+
+ QDataStream reply( replyData, IO_ReadOnly );
+ reply >> win;
+
+ }
+
+ if (win) {
+ if (_extension)
+ {
+ _extension->hide();
+ }
+ QXEmbed::initialize();
+ QXEmbed::embedClientIntoWindow( _extension, win );
+ }
+ else {
+ kdError() << "Failed to dock into the panel." << endl;
+ if(_extension) delete _extension;
+ exit(0);
+ }
+}
+
+bool ExtensionProxy::process(const QCString &fun, const QByteArray &data,
+ QCString& replyType, QByteArray &replyData)
+{
+ if ( fun == "sizeHint(int,QSize)" )
+ {
+ QDataStream dataStream( data, IO_ReadOnly );
+ int pos;
+ QSize maxSize;
+ dataStream >> pos;
+ dataStream >> maxSize;
+
+ QDataStream reply( replyData, IO_WriteOnly );
+ replyType = "QSize";
+
+ if(!_extension)
+ reply << maxSize;
+ else
+ reply << _extension->sizeHint((KPanelExtension::Position)pos, maxSize);
+
+ return true;
+ }
+ else if ( fun == "setPosition(int)" )
+ {
+ QDataStream dataStream( data, IO_ReadOnly );
+ int pos;
+ dataStream >> pos;
+
+ if(_extension) {
+ _extension->setPosition( (KPanelExtension::Position)pos );
+ }
+ return true;
+ }
+ else if ( fun == "setAlignment(int)" )
+ {
+ QDataStream dataStream( data, IO_ReadOnly );
+ int alignment;
+ dataStream >> alignment;
+
+ if(_extension) {
+ _extension->setAlignment( (KPanelExtension::Alignment)alignment );
+ }
+ return true;
+ }
+ else if ( fun == "setSize(int,int)" )
+ {
+ QDataStream dataStream( data, IO_ReadOnly );
+ int serializedSize;
+ int custom;
+ dataStream >> serializedSize;
+ dataStream >> custom;
+
+ if (_extension)
+ _extension->setSize(KPanelExtension::Size(serializedSize), custom);
+ return true;
+ }
+ else if ( fun == "removedFromPanel()" )
+ {
+ if(_extension) delete _extension;
+ exit(0);
+ return true;
+ }
+ else if ( fun == "about()" )
+ {
+ if(_extension) _extension->action( KPanelExtension::About );
+ return true;
+ }
+ else if ( fun == "help()" )
+ {
+ if(_extension) _extension->action( KPanelExtension::Help );
+ return true;
+ }
+ else if ( fun == "preferences()" )
+ {
+ if(_extension) _extension->action( KPanelExtension::Preferences );
+ return true;
+ }
+ else if ( fun == "reportBug()" )
+ {
+ if(_extension) _extension->action( KPanelExtension::ReportBug );
+ return true;
+ }
+ else if ( fun == "actions()" )
+ {
+ QDataStream reply( replyData, IO_WriteOnly );
+ int actions = 0;
+ if(_extension) actions = _extension->actions();
+ reply << actions;
+ replyType = "int";
+ return true;
+ }
+ else if ( fun == "preferedPosition()" )
+ {
+ QDataStream reply( replyData, IO_WriteOnly );
+ int pos = static_cast<int>(KPanelExtension::Bottom);
+ if(_extension) pos = static_cast<int>(_extension->preferedPosition());
+ reply << pos;
+ replyType = "int";
+ return true;
+ }
+ else if ( fun == "type()" )
+ {
+ QDataStream reply( replyData, IO_WriteOnly );
+ int type = 0;
+ if (_extension) type = static_cast<int>(_extension->type());
+ reply << type;
+ replyType = "int";
+ return true;
+ }
+ return false;
+}
+
+void ExtensionProxy::slotUpdateLayout()
+{
+ if(_callbackID.isNull()) return;
+
+ QByteArray data;
+ int screen_number = 0;
+ if (qt_xdisplay())
+ screen_number = DefaultScreen(qt_xdisplay());
+ QCString appname;
+ if (screen_number == 0)
+ appname = "kicker";
+ else
+ appname.sprintf("kicker-screen-%d", screen_number);
+
+ kapp->dcopClient()->send(appname, _callbackID, "updateLayout()", data);
+}
+
+void ExtensionProxy::slotApplicationRemoved(const QCString& appId)
+{
+ int screen_number = 0;
+ if (qt_xdisplay())
+ screen_number = DefaultScreen(qt_xdisplay());
+ QCString appname;
+ if (screen_number == 0)
+ appname = "kicker";
+ else
+ appname.sprintf("kicker-screen-%d", screen_number);
+
+ if(appId == appname) {
+ kdDebug(1210) << "Connection to kicker lost, shutting down" << endl;
+ kapp->quit();
+ }
+}
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