1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 #include "hswidgetcomponentregistry.h"

    19 #include "hswidgetcomponent.h"

    20 #include <QSignalMapper>

    21 QScopedPointer<HsWidgetComponentRegistry> HsWidgetComponentRegistry::mInstance(0);

    22 

    23 /*!

    24 

    25 */

    26 HsWidgetComponentRegistry* HsWidgetComponentRegistry::instance()

    27 {

    28     if (!mInstance) {

    29         mInstance.reset(new HsWidgetComponentRegistry);

    30     }

    31     return mInstance.data();

    32 }

    33 

    34 /*!

    35 

    36 */

    37 HsWidgetComponentRegistry::~HsWidgetComponentRegistry()

    38 {

    39     qDeleteAll(mRegistry);

    40 }

    41 

    42 /*!

    43 

    44 */

    45 HsWidgetComponent *HsWidgetComponentRegistry::component(const QString &uri)

    46 {

    47 	if (mRegistry.contains(uri)) {

    48         return mRegistry.value(uri);

    49 	}

    50 

    51 	QScopedPointer<HsWidgetComponent> c(new HsWidgetComponent(uri));

    52 	mRegistry.insert(uri, c.data());

    53  	connect(c.data(), SIGNAL(aboutToUninstall()), mSignalMapper.data(), 

    54         SLOT(map()));

    55     mSignalMapper->setMapping(c.data(),uri);

    56 	return c.take();

    57 }

    58 

    59 /*!

    60 

    61 */

    62 HsWidgetComponentRegistry::HsWidgetComponentRegistry(QObject *parent)

    63   : QObject(parent),mSignalMapper(new QSignalMapper())

    64 {

    65     connect(mSignalMapper.data(),SIGNAL(mapped(QString)),SLOT(onAboutToUninstall(QString)));

    66 }

    67 

    68 /*!

    69 

    70 */

    71 void HsWidgetComponentRegistry::onAboutToUninstall(const QString &uri)

    72 {

    73     if (mRegistry.contains(uri)) {

    74         mRegistry.take(uri)->deleteLater();

    75     }

    76 }