--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/bagetmodel/src/bagetfactory.cpp Fri Mar 19 09:35:23 2010 +0200
@@ -0,0 +1,174 @@
+/*
+* 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: Widget factory.
+*
+*/
+
+#include <QDebug>
+#include <QStringList>
+#include <QDir>
+#include <QPluginLoader>
+
+#include "bagetfactory.h"
+#include "bagetfactory_p.h"
+#include "baget.h"
+#include "ibagetprovider.h"
+
+/*!
+ \class BagetPluginUnloader
+ \brief Unloads plugin and deletes plugin loader.
+
+ Holds plugin loader instance and unloads and destroys plugin
+ on it's destructor.
+ */
+
+/*!
+ Constructs a new BagetPluginUnloader with \a pluginLoader and \a parent.
+ */
+BagetPluginUnloader::BagetPluginUnloader(QPluginLoader *pluginLoader, QObject *parent) :
+ QObject(parent), mPluginLoader(pluginLoader)
+{
+}
+
+/*!
+ Destructs the class.
+ */
+BagetPluginUnloader::~BagetPluginUnloader()
+{
+ if (mPluginLoader) {
+ mPluginLoader->unload();
+ delete mPluginLoader;
+ }
+}
+
+/*!
+ \class BagetFactoryPrivate
+ \brief Private implementation of the BagetFactory.
+ */
+
+/*!
+ Constructs a new BagetFactoryPrivate with \a pluginDirectory and \a bagetFactoryPublic.
+ */
+BagetFactoryPrivate::BagetFactoryPrivate(const QString& pluginDirectory,
+ BagetFactory *bagetFactoryPublic) :
+ m_q(bagetFactoryPublic), mPluginDirectory(pluginDirectory)
+{
+}
+
+/*!
+ Destructs the class.
+ */
+BagetFactoryPrivate::~BagetFactoryPrivate()
+{
+}
+
+/*!
+ Creates and returns a Baget based on the given token.
+ \param token Identifies the Baget to be created.
+ \return The created Baget.
+ */
+Baget *BagetFactoryPrivate::createBaget(const BagetToken &token)
+{
+ QStringList pluginPaths;
+
+ // check plugin dirs from root of different drives
+ QFileInfoList drives = QDir::drives();
+ for(int i=0; i < drives.count(); i++) {
+ QFileInfo drive = drives.at(i);
+ QString driveLetter = drive.absolutePath();
+ QString path = driveLetter + mPluginDirectory;
+ if (QDir(path).exists()) {
+ pluginPaths << path;
+ }
+ }
+
+ // check plugin dir relative to current dir
+ if (QDir(mPluginDirectory).exists() &&
+ !pluginPaths.contains(QDir(mPluginDirectory).absolutePath())) {
+ pluginPaths << mPluginDirectory;
+ }
+
+ IBagetProvider *provider(0);
+ QPluginLoader *loader = new QPluginLoader();
+ QObject *plugin(0);
+
+ for(int i=0; i < pluginPaths.count(); i++) {
+ QString path = pluginPaths.at(i);
+ QString fileName = QDir(path).absoluteFilePath(token.mLibrary);
+
+ loader->setFileName(fileName);
+ plugin = loader->instance();
+ provider = qobject_cast<IBagetProvider*>(plugin);
+ if (provider) {
+ break;
+ }
+ }
+
+ Baget *baget(0);
+
+ if (provider) {
+ baget = provider->createBaget(token);
+ if (!baget) {
+ qWarning() << "Baget creation failed.";
+ qWarning() << token.mLibrary << "cannot provide" << token.mUri;
+ loader->unload();
+ delete loader;
+ } else {
+ // unload plugin once baget gets deleted
+ BagetPluginUnloader *unloader = new BagetPluginUnloader(loader);
+ unloader->connect(baget, SIGNAL(destroyed()), SLOT(deleteLater()));
+ }
+ } else {
+ qDebug() << "Baget creation failed.";
+ qWarning() << token.mLibrary << "- provider not found";
+ loader->unload();
+ delete loader;
+ }
+
+ return baget;
+}
+
+/*!
+ \class BagetFactory
+ \brief Finds and creates baget widgets.
+
+ Baget factory creates an instance of a Baget
+ based on a BagetToken that is given to it.
+ */
+
+/*!
+ Constructs a new BagetFactory with \a pluginDirectory and \a parent.
+ */
+BagetFactory::BagetFactory(const QString& pluginDirectory, QObject *parent) :
+ QObject(parent), m_d(new BagetFactoryPrivate(pluginDirectory, this))
+{
+}
+
+/*!
+ Destructs the class.
+ */
+BagetFactory::~BagetFactory()
+{
+ delete m_d;
+}
+
+/*!
+ Creates and returns a Baget based on the given token.
+ \param token Identifies the Baget to be created.
+ \return The created Baget.
+ */
+Baget* BagetFactory::createBaget(const BagetToken &token)
+{
+ return m_d->createBaget(token);
+}