hswidgetmodel/src/hswidgetprovidermanifest.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 23 Jun 2010 18:33:40 +0300
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permissions -rw-r--r--
Revision: 201023 Kit: 2010125
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  HsWidget provider manifest.
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*
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*/
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#include <QDomDocument>
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#include <QFile>
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#include "hswidgetprovidermanifest.h"
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#include "hswidgetprovidermanifest_p.h"
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#include "hstest_global.h"
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/*DEPRECATED
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    \class HsWidgetProviderManifest
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    \ingroup group_hswidgetmodel
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    \brief Loads home screen widget tokens from an XML manifest file.
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    Used by the HsWidgetFactory for loading widget tokens from an XML
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    manifest file.
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*/
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HsWidgetProviderManifestPrivate::HsWidgetProviderManifestPrivate(
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    HsWidgetProviderManifest *handle):
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    mPublic(handle),
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	mLoadOnQuery(false)
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{
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}
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HsWidgetProviderManifestPrivate::~HsWidgetProviderManifestPrivate()
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{
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}
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QList<HsWidgetToken> HsWidgetProviderManifestPrivate::widgets() const
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{
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    return mWidgetTokens;
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}
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bool HsWidgetProviderManifestPrivate::loadFromXml(const QString &fileName)
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{
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    mWidgetTokens.clear();
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    QFile file(fileName);
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    if (!file.exists()) {
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       return false;
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    }
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    QDomDocument document;
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    if (!document.setContent(&file)) {
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        return false;
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    }
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    QDomElement element = document.documentElement();
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    if (element.tagName() != "widgetprovider") {
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        return false;
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    }
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    mLoadOnQuery = false;
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    QDomAttr attribute = element.attributeNode("loadonquery");
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	if (attribute.value().toLower() == "true") {
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        mLoadOnQuery = true;
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	}
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    QList<HsWidgetToken> tokens;
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    HsWidgetToken token;
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    QDomNodeList widgets = element.elementsByTagName("widget");
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	bool required(true);
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    if (mLoadOnQuery) {
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		required = false;
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	}
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    for(int i = 0; i < widgets.count(); ++i) {
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        element = widgets.at(i).toElement();
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        token.mLibrary = parseAttribute(element, "library");
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        token.mUri = parseAttribute(element, "uri");
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        token.mTitle = parseAttribute(element, "title", required);
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        token.mIconUri = parseAttribute(element, "iconuri", false);
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        token.mDescription = parseAttribute(element, "description");
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        tokens << token;
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    }
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    mWidgetTokens = tokens;
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    return true;
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}
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QString HsWidgetProviderManifestPrivate::parseAttribute(
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	QDomElement &element, 
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	const QString &attributeName, 
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	bool isRequired) const
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{
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    QDomAttr attribute = element.attributeNode(attributeName);
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    if (attribute.isNull() || attribute.value().isEmpty()) {
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        if (isRequired) {
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            HSDEBUG("Required attribute missing")
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			return QString();
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        }
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        else {
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            return QString();
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        }
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    }
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    return attribute.value();
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}
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/*!
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    \fn HsWidgetProviderManifest::HsWidgetProviderManifest(QObject* aParent)
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    Constructor
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*/
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HsWidgetProviderManifest::HsWidgetProviderManifest(QObject *parent)
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    : QObject(parent),
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    mD(new HsWidgetProviderManifestPrivate(this))
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{
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}
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/*!
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    \fn HsWidgetProviderManifest::~HsWidgetProviderManifest()
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    Destructor
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*/
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HsWidgetProviderManifest::~HsWidgetProviderManifest()
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{
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    delete mD;
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}
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/*!
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    \fn QList<HsWidgetToken> HsWidgetProviderManifest::widgets() const
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    Returns widget tokens found from manifest
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*/
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QList<HsWidgetToken> HsWidgetProviderManifest::widgets() const
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{
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    return mD->widgets();
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}
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/*!
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    \fn bool HsWidgetProviderManifest::loadOnQuery() const
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    Returns whether widget tokens should be quered dynamically
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*/
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bool HsWidgetProviderManifest::loadOnQuery() const
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{
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	return mD->mLoadOnQuery;
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}
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/*!
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    \fn bool HsWidgetProviderManifest::loadFromXml(const QString& aFileName)
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    Returns true if given \a fileName manifest parsing succeeded
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*/
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bool HsWidgetProviderManifest::loadFromXml(const QString &fileName)
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{
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    return mD->loadFromXml(fileName);
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}
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