author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 03 May 2010 12:48:45 +0300 | |
changeset 66 | 32469d7d46ff |
parent 60 | f62f87b200ec |
permissions | -rw-r--r-- |
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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: Screensaver factory. |
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* |
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*/ |
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|
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#include <QDebug> |
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#include <QStringList> |
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#include <QDir> |
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#include <QPluginLoader> |
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|
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#include "screensaverfactory.h" |
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#include "screensaverfactory_p.h" |
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#include "screensaver.h" |
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/*! |
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\class ScreensaverPluginUnloader |
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\brief Unloads plugin and deletes plugin loader. |
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|
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Holds plugin loader instance and unloads and destroys plugin |
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on it's destructor. |
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*/ |
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/*! |
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Constructs a new SnsrPluginUnloader with \a pluginLoader and \a parent. |
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*/ |
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ScreensaverPluginUnloader::ScreensaverPluginUnloader( |
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QPluginLoader *pluginLoader, QObject *parent) : |
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QObject(parent), mPluginLoader(pluginLoader) |
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{ |
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} |
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|
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/*! |
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Destructs the class. |
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*/ |
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ScreensaverPluginUnloader::~ScreensaverPluginUnloader() |
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{ |
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if (mPluginLoader) { |
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mPluginLoader->unload(); |
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delete mPluginLoader; |
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} |
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} |
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|
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/*! |
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\class ScreensaverFactoryPrivate |
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\brief The private implementation of the ScreensaverFactory. |
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*/ |
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/*! |
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Constructs a new ScreensaverFactoryPrivate with \a pluginDirectory and \a screensaverFactoryPublic. |
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*/ |
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ScreensaverFactoryPrivate::ScreensaverFactoryPrivate(const QString& pluginDirectory, |
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ScreensaverFactory *screensaverFactoryPublic) : |
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m_q(screensaverFactoryPublic), mPluginDirectory(pluginDirectory) |
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{ |
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} |
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/*! |
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Destructs the class. |
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*/ |
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ScreensaverFactoryPrivate::~ScreensaverFactoryPrivate() |
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{ |
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} |
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/*! |
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Creates and returns a screensaver on the given token. |
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\param token Identifies the screensaver to be created. |
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\return The created state. |
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*/ |
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Screensaver* ScreensaverFactoryPrivate::createScreensaver(const ScreensaverToken &token) |
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{ |
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QStringList pluginPaths; |
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// check plugin dirs from root of different drives |
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QFileInfoList drives = QDir::drives(); |
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for(int i=0; i < drives.count(); i++) { |
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QFileInfo drive = drives.at(i); |
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QString driveLetter = drive.absolutePath(); |
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QString path = driveLetter + mPluginDirectory; |
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if (QDir(path).exists()) { |
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pluginPaths << path; |
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} |
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} |
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// check plugin dir relative to current dir |
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if (QDir(mPluginDirectory).exists() && |
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!pluginPaths.contains(QDir(mPluginDirectory).absolutePath())) { |
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pluginPaths << mPluginDirectory; |
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} |
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IScreensaverProvider *provider(0); |
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QPluginLoader *loader = new QPluginLoader(); |
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QObject *plugin(0); |
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for(int i=0; i < pluginPaths.count(); i++) { |
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QString path = pluginPaths.at(i); |
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QString fileName = QDir(path).absoluteFilePath(token.mLibrary); |
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109 |
|
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loader->setFileName(fileName); |
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plugin = loader->instance(); |
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provider = qobject_cast<IScreensaverProvider*>(plugin); |
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if (provider) { |
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break; |
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} |
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} |
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117 |
|
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Screensaver *screensaver(0); |
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119 |
|
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120 |
if (provider) { |
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screensaver = provider->createScreensaver(token); |
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if (!screensaver) { |
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qWarning() << "Screensaver creation failed."; |
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qWarning() << token.mLibrary << "cannot provide" << token.mUri; |
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loader->unload(); |
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delete loader; |
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} else { |
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// unload plugin once screensaver gets deleted |
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ScreensaverPluginUnloader *unloader = new ScreensaverPluginUnloader(loader); |
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unloader->connect(screensaver, SIGNAL(destroyed()), SLOT(deleteLater())); |
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131 |
} |
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} else { |
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qDebug() << "Screensaver creation failed."; |
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qWarning() << token.mLibrary << "- provider not found"; |
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loader->unload(); |
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delete loader; |
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137 |
} |
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138 |
|
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return screensaver; |
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140 |
} |
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141 |
|
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142 |
/*! |
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\class ScreensaverFactory |
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\brief Finds and creates screensavers. |
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145 |
|
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Screensaver factory creates an instance of a screensaver |
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on a screensaver token that is given to it. |
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148 |
*/ |
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149 |
|
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150 |
/*! |
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Constructs a new ScreensaverFactory with \a pluginDirectory and \a parent. |
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152 |
*/ |
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ScreensaverFactory::ScreensaverFactory(const QString& pluginDirectory, |
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QObject *parent) : |
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QObject(parent), m_d(new ScreensaverFactoryPrivate(pluginDirectory, this)) |
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156 |
{ |
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157 |
} |
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158 |
|
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159 |
/*! |
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160 |
Destructs the class. |
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161 |
*/ |
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162 |
ScreensaverFactory::~ScreensaverFactory() |
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163 |
{ |
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delete m_d; |
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165 |
} |
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166 |
|
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167 |
/*! |
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168 |
Creates and returns a screensaver on the given token. |
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\param token Identifies the screensaver to be created. |
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\return The created screensaver. |
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171 |
*/ |
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172 |
Screensaver* ScreensaverFactory::createScreensaver(const ScreensaverToken &token) |
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173 |
{ |
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174 |
return m_d->createScreensaver(token); |
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175 |
} |