hswidgetmodel/src/hswidgetfactory.cpp
branchRCL_3
changeset 113 0efa10d348c0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hswidgetmodel/src/hswidgetfactory.cpp	Tue Aug 31 15:30:51 2010 +0300
@@ -0,0 +1,146 @@
+/*
+* 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:  HsWidget factory.
+*
+*/
+
+
+#include <QStringList>
+#include <QDir>
+#include <QPluginLoader>
+
+#include "hswidgetfactory.h"
+#include "hswidgetfactory_p.h"
+#include "hswidget.h"
+#include "hswidgetprovidermanifest.h"
+#include "hstest_global.h"
+
+
+
+/*DEPRECATED
+    \class HsPluginUnloader
+    \ingroup group_hswidgetmodel
+    \brief Unloads plugin and deletes plugin loader.
+
+    Holds plugin loader instance and unloads and destroys plugin
+    on it's destructor. 
+ 
+*/
+
+
+/*!
+    \fn HsPluginUnloader::HsPluginUnloader(QPluginLoader *pluginLoader,QObject *parent)
+
+    Constructs plugin unloader object. When this object is destroyed it 
+    unloads it's pointed \a pluginLoader instance.
+*/
+HsPluginUnloader::HsPluginUnloader(QPluginLoader *pluginLoader,QObject *parent)
+    :QObject(parent),mPluginLoader(pluginLoader)
+{
+}
+
+/*!
+    \fn HsPluginUnloader::~HsPluginUnloader()
+
+    Unloads it's plugin loader instance.
+*/
+HsPluginUnloader::~HsPluginUnloader()
+{
+    if(mPluginLoader) {
+        mPluginLoader->unload();
+        delete mPluginLoader; 
+    }
+}
+
+/*DEPRECATED
+    \class HsWidgetFactory 
+    \ingroup group_hswidgetmodel
+    \brief Finds and creates home screen widgets.
+
+    HsWidget factory creates an instance of
+    a widget base on a widget token that is given to it.
+ 
+*/
+
+
+HsWidgetFactoryPrivate::HsWidgetFactoryPrivate(HsWidgetFactory *factory):
+    mPublic(factory)
+{
+
+}
+
+
+HsWidgetFactoryPrivate::~HsWidgetFactoryPrivate()
+{
+
+}
+
+
+
+HsWidget* HsWidgetFactoryPrivate::createWidget(const HsWidgetToken &token)
+{
+   QPluginLoader* loader = new QPluginLoader(token.mLibrary);
+   QObject* plugin = loader->instance();
+   IHsWidgetProvider* provider = qobject_cast<IHsWidgetProvider*>(plugin);
+   HsWidget* widget(0);
+   
+   if (provider) {
+       widget = provider->createWidget(token);
+       
+       if (!widget) {
+          HSDEBUG("Widget creation failed.")
+          loader->unload();
+          delete loader;
+       }
+       else {
+           HsPluginUnloader* p = new HsPluginUnloader(loader);
+           p->connect(widget,SIGNAL(destroyed()),SLOT(deleteLater()));
+       }
+    }
+
+   else {
+        HSDEBUG("Widget creation failed - No provider.")
+        loader->unload();
+        delete loader;
+   }
+
+   
+    return widget;
+}
+
+/*!
+    Constructor
+*/
+HsWidgetFactory::HsWidgetFactory(QObject *parent)
+    : QObject(parent),mD(new HsWidgetFactoryPrivate(this))
+{
+}
+/*!
+    Destructor
+*/
+HsWidgetFactory::~HsWidgetFactory()
+{
+    delete mD;
+}
+
+
+/*!
+    Creates and returns a widget based on given \a token
+*/
+HsWidget* HsWidgetFactory::createWidget(const HsWidgetToken &token)
+{
+    return mD->createWidget(token);
+}
+
+