--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtecomplugins/xqplugins/src/xqpluginloader.cpp	Tue Aug 31 16:02:37 2010 +0300
@@ -0,0 +1,172 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Lesser General Public License as published by
+* the Free Software Foundation, version 2.1 of the License.
+* 
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public License
+* along with this program.  If not, 
+* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".
+*
+* Description:  This class implements an extended wrapper for the ECOM framework.
+*
+*/
+
+#include "xqpluginloader.h"
+#include "xqpluginloaderprivate.h"
+
+#include <qfileinfo.h>
+#include "qdebug.h"
+
+/*!
+  Constructs plugin loader with the given parent.
+  @param parent - address of class instance parent 
+*/
+XQPluginLoader::XQPluginLoader(QObject* parent) 
+: 
+QObject(parent),
+d(0),
+did_load( false )
+{
+}
+
+/*!
+  Constructs plugin loader with the given parent and plugin implementation UID.
+  @param uid - UID of plugin that should be loaded
+  @param parent - address of class instance parent 
+ */
+XQPluginLoader::XQPluginLoader(int requestedUid, QObject* parent) 
+: 
+QObject(parent),
+d(XQPluginLoaderPrivate::findOrCreate(requestedUid)), 
+did_load( false )
+{
+}
+
+/*!
+  Destroys plugin loader. Unless unload() was called explicitly, plugins still stays in memory.
+*/
+XQPluginLoader::~XQPluginLoader()
+{
+    if(d) {
+        d->release();
+    }
+}
+
+/*!
+  List available plugins which implement requested interface. Plugins are resolved using interface name.
+  
+  @param interfaceName - requested interface name
+  @param impls - destination list where resolved plugins info will be stored
+  @return true on success, false on any error
+*/
+bool XQPluginLoader::listImplementations(
+        const QString &interfaceName, 
+        QList< XQPluginInfo > &impls)
+{
+    RImplInfoPtrArray infoArr;
+    TRAPD( errCode, XQPluginLoaderPrivate::listImplementationsL( infoArr, interfaceName, impls ) );
+    infoArr.ResetAndDestroy();
+    return ( KErrNone == errCode );
+}
+
+/*!
+  Returns UID of requested plugin.
+ */
+int XQPluginLoader::uid()const
+{
+    return ( d ? d->uid : KNullUid.iUid );
+}
+
+/*!
+  Return pointer to plugin root-component instance
+  @return instance address on success, 0 otherwise  
+ */
+QObject* XQPluginLoader::instance()
+{
+    if (!load())
+        return 0;
+#ifndef Q_OS_SYMBIAN
+    if (d->instance)
+        return d->instance();
+	else
+		return 0;
+#else
+    return d->instance();
+#endif
+    
+}
+
+/*!
+  Return information if plugin have been loaded
+  @return true if plugin have been loaded, false otherwise 
+ */
+bool XQPluginLoader::isLoaded() const
+{
+    return d && d->pHnd
+#ifndef Q_OS_SYMBIAN
+        && d->instance;
+#else
+        ;
+#endif    
+}
+
+/*!
+  Load requested plugin.
+  @return true on success, false otherwise
+ */
+bool XQPluginLoader::load()
+{
+    if (!d)
+        return false;
+    if (did_load)
+        return d->pHnd;
+    did_load = true;
+    return d->loadPlugin();
+}
+
+/*!
+  Unloads the plugin and returns true if plugin could be unloaded. All plugins are unloaded at aplication exit 
+  so calling this method is not mandatory. 
+  Actual unloading will succed only when all instances of given plugin loaders calls unload.
+  @return true on success, false otherwise
+ */
+bool XQPluginLoader::unload()
+{
+    if (did_load) {
+        did_load = false;
+        return d->unload();
+    }
+    if (d)  // Ouch
+        d->errorString = tr("The plugin was not loaded.");
+    return false;
+}
+
+/*!
+  Setter for UID of plugin. It is the same UID that may be specified in constructor.
+*/
+void XQPluginLoader::setUid ( int uid )
+{
+    if (d) {
+        d->release();
+        d = 0;
+        did_load = false;
+    }
+    d = XQPluginLoaderPrivate::findOrCreate( uid );
+}
+
+/*!
+  Return string.with description of last error that occured.
+  @return error description
+*/
+QString XQPluginLoader::errorString () const
+{
+    return (!d || d->errorString.isEmpty()) ? tr("Unknown error") : d->errorString;
+}