--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/nmailuiengine/src/nmdatapluginfactory.cpp Fri Apr 16 14:51:52 2010 +0300
@@ -0,0 +1,197 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#include "nmuiengineheaders.h"
+
+
+/*!
+ \class NmDataPluginFactory
+ \brief The NmDataPluginFactory class creates NmDataPlugin instance.
+
+*/
+NmDataPluginFactory *NmDataPluginFactory::mInstance;
+int NmDataPluginFactory::mReferenceCount;
+QList<QObject*> *NmDataPluginFactory::mPluginArray;
+QList<QPluginLoader*> NmDataPluginFactory::mPluginLoaderArray;
+
+static const quint32 TESTPLUGINID = 0x20026764;
+static const int TESTPLUGININDEX = 0;
+static const int INTERFACEPLUGININDEX = 1;
+
+
+/*!
+
+ */
+NmDataPluginFactory::NmDataPluginFactory()
+{
+
+}
+
+/*!
+
+ */
+NmDataPluginFactory::~NmDataPluginFactory()
+{
+ if (mPluginArray) {
+ qDeleteAll(mPluginArray->begin(), mPluginArray->end());
+ mPluginArray->clear();
+ delete mPluginArray;
+ mPluginArray = NULL;
+ }
+
+ qDeleteAll(mPluginLoaderArray.constBegin(), mPluginLoaderArray.constEnd());
+ mPluginLoaderArray.clear();
+}
+
+/*!
+
+ */
+NmDataPluginFactory *NmDataPluginFactory::instance()
+{
+ if (!mInstance) {
+ mInstance = new NmDataPluginFactory();
+ }
+ mReferenceCount++;
+ return mInstance;
+}
+
+/*!
+
+ */
+void NmDataPluginFactory::releaseInstance(NmDataPluginFactory *&instance)
+ {
+ //can't have passed out instances if we don't have any
+ if (mInstance) {
+ if (instance == mInstance) {
+ instance = NULL;
+ mReferenceCount--;
+ }
+ if (0 >= mReferenceCount) {
+ delete mInstance;
+ mInstance = NULL;
+ }
+ }
+ }
+
+/*!
+
+ */
+NmDataPluginInterface *NmDataPluginFactory::interfaceInstance(QObject *plugin)
+{
+ NmDataPluginInterface *pluginInterface = NULL;
+ if (plugin) {
+ pluginInterface= qobject_cast<NmDataPluginInterface*>(plugin);
+ }
+ return pluginInterface;
+}
+
+/*!
+
+ */
+NmDataPluginInterface *NmDataPluginFactory::interfaceInstance(NmId mailboxId)
+{
+ return interfaceInstance(pluginInstance(mailboxId));
+}
+
+/*!
+
+ */
+QObject *NmDataPluginFactory::pluginInstance(NmId mailboxId)
+{
+ QObject *value(NULL);
+
+ quint64 tmp = mailboxId.id();
+ quint32 pluginId = tmp >> 32;
+ if (pluginId == TESTPLUGINID ||
+ pluginId == 0
+#ifdef USE_POPIMAP_TESTPLUGIN
+ || pluginId == POPTESTPLUGINID
+ || pluginId == IMAPTESTPLUGINID
+#endif
+ ) {
+ //test plugin is always the first one
+ value = pluginInstances()->at(TESTPLUGININDEX);
+ }
+ else {
+ return pluginInstances()->at(INTERFACEPLUGININDEX);
+ }
+
+ return value;
+}
+
+/*!
+
+ */
+QList<QObject*> *NmDataPluginFactory::pluginInstances()
+{
+ //if plugins have not been already created, do it now.
+ if (!mPluginArray) {
+ mPluginArray = new QList<QObject*>();
+ }
+ if (mPluginArray->count() == 0) {
+ //first, create testPlugin
+#ifdef Q_OS_SYMBIAN
+ const QString KTestPluginName = "nmtestplugin.qtplugin";
+ const QString KPluginDirectory = "c:\\resource\\plugins";
+ QDir pluginDir = QDir(KPluginDirectory);
+#else
+ const QString KTestPluginName = "nmtestplugin.dll";
+ QDir pluginDir = QDir(QApplication::applicationDirPath());
+#endif
+ QObject *testPlugin = loadPlugin(pluginDir, KTestPluginName);
+
+ mPluginArray->append(testPlugin);
+
+ //then framework data plugin
+#ifdef Q_OS_SYMBIAN
+ const QString KFrameworkPluginName = "nmframeworkadapter.qtplugin";
+ QObject *frameworkPlugin = loadPlugin(pluginDir, KFrameworkPluginName);
+ mPluginArray->append(frameworkPlugin);
+
+#endif
+ }
+ return mPluginArray;
+}
+
+/*!
+
+ */
+QObject *NmDataPluginFactory::loadPlugin(
+ const QDir &pluginDir,
+ const QString &pluginName )
+{
+ /*!
+ This creates plugin entity.
+ */
+ QPluginLoader *loader = new QPluginLoader(pluginDir.absoluteFilePath(pluginName));
+
+ QObject *pluginInstance = loader->instance();
+
+ if (pluginInstance) {
+ // Store QPluginLoader instances to keep plugins alive.
+ // If QPluginLoader instance for a plugin is deleted, then there
+ // is a risk that some component outside will load and unload
+ // plugin, which will lead into situation where plugin is deleted.
+ // This means that instance in mPluginArray will be invalid.
+ mPluginLoaderArray.append(loader);
+ } else {
+ // We don't have proper plugin instance, so we don't need it's loader.
+ delete loader;
+ loader = NULL;
+ }
+ return pluginInstance;
+}