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Diffstat (limited to 'kicker/proxy/extensionproxy.cpp')
| -rw-r--r-- | kicker/proxy/extensionproxy.cpp | 401 |
1 files changed, 401 insertions, 0 deletions
diff --git a/kicker/proxy/extensionproxy.cpp b/kicker/proxy/extensionproxy.cpp new file mode 100644 index 000000000..0fbb341e5 --- /dev/null +++ b/kicker/proxy/extensionproxy.cpp @@ -0,0 +1,401 @@ +/***************************************************************** + +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(); + } +} |