Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

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();
+    }
+}