/*!
Creates and returns a screensaver on the given token.
\param token Identifies the screensaver to be created.
\return The created state.
*/
Screensaver* ScreensaverFactoryPrivate::createScreensaver(const ScreensaverToken &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;
}
IScreensaverProvider *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<IScreensaverProvider*>(plugin);
if (provider) {
break;
}
}
Screensaver *screensaver(0);
if (provider) {
screensaver = provider->createScreensaver(token);
if (!screensaver) {
qWarning() << "Screensaver creation failed.";
qWarning() << token.mLibrary << "cannot provide" << token.mUri;
loader->unload();
delete loader;
} else {
// unload plugin once screensaver gets deleted
ScreensaverPluginUnloader *unloader = new ScreensaverPluginUnloader(loader);
unloader->connect(screensaver, SIGNAL(destroyed()), SLOT(deleteLater()));
}
} else {
qDebug() << "Screensaver creation failed.";
qWarning() << token.mLibrary << "- provider not found";
loader->unload();
delete loader;
}
return screensaver;
}
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;
}
ToolPluginManager::ToolPluginManager()
: mCustomizer()
{
mPluginsDir = QDir(qApp->applicationDirPath());
while (!mPluginsDir.isRoot() && !mPluginsDir.entryList(QDir::Dirs).contains("plugins")) {
mPluginsDir.cdUp();
}
mPluginsDir.cd("plugins");
for (QString const &fileName : mPluginsDir.entryList(QDir::Files)) {
// TODO: Free memory
QPluginLoader *loader = new QPluginLoader(mPluginsDir.absoluteFilePath(fileName));
QObject *plugin = loader->instance();
if (plugin) {
ToolPluginInterface *toolPlugin = qobject_cast<ToolPluginInterface *>(plugin);
if (toolPlugin) {
mPlugins << toolPlugin;
mLoaders << loader;
} else {
// TODO: Does not work on linux. See editorManager.cpp for more details.
// loader->unload();
delete loader;
}
} else {
loader->unload();
delete loader;
}
}
loadDefaultSettings();
setHotKeyActions();
}
void AbstractPluginLoader::loadPlugins(const QRegExp& fileRx, QVector<QString>* errors)
{
Q_D(AbstractPluginLoader);
const QDir pluginsFolder(this->loadingFolder());
QStringList entries(pluginsFolder.entryList(QDir::Files));
foreach (const QString& entry, entries) {
if (fileRx.indexIn(entry) != -1 && ::isLibrary(entry)) {
// Try to load the plugin
#ifdef DEBUG_ABSTRACT_PLUGIN_LOADER
qDebug() << "try to load" << entry;
#endif // DEBUG_ABSTRACT_PLUGIN_LOADER
QPluginLoader* pluginLoader = new QPluginLoader(pluginsFolder.absoluteFilePath(entry));
QObject* plugin = pluginLoader->instance();
// Is the plugin compatible ?
if (this->isPluginCompatible(plugin)) {
d->m_plugins.append(plugin);
d->m_pluginLoaders.append(pluginLoader);
d->m_pluginFilenames.insert(plugin, entry);
}
else {
#ifdef DEBUG_ABSTRACT_PLUGIN_LOADER
qDebug() << " not added";
#endif // DEBUG_ABSTRACT_PLUGIN_LOADER
if (errors != NULL)
//: %1 holds the path to a plugin (DLL)
//: %2 holds an error description
errors->append(QObject::tr("Failed to load plugin (maybe wrong interface) %1 : %2")
.arg(pluginLoader->fileName())
.arg(pluginLoader->errorString()));
pluginLoader->unload();
delete pluginLoader;
} // end if (this->isPluginCompatible(plugin))
} // end if (fileRx.indexIn(entry) != -1)
} // end foreach ()
}
bool ComponentManager::unloadModelComponentInfoById(const QString& id)
{
if(m_modelComponentInfoById.contains(id))
{
IModelComponentInfo* componentInfo = m_modelComponentInfoById[id];
if (m_modelComponentInfoHash.contains(componentInfo))
{
QPluginLoader* plugin = m_modelComponentInfoHash[componentInfo];
m_modelComponentInfoHash.remove(componentInfo);
m_modelComponentInfoById.remove(id);
emit modelComponentInfoUnloaded(componentInfo->id());
emit postMessage("Model component library " + componentInfo->id() + " unloaded");
plugin->unload();
return true;
}
else
{
emit postMessage("Unable to unload model component library " + componentInfo->id());
return false;
}
}
else
{
return false;
}
}
void tst_QPluginLoader::reloadPlugin()
{
QPluginLoader loader;
loader.setFileName( sys_qualifiedLibraryName("theplugin")); //a plugin
loader.load(); // not recommended, instance() should do the job.
PluginInterface *instance = qobject_cast<PluginInterface*>(loader.instance());
QVERIFY(instance);
QCOMPARE(instance->pluginName(), QLatin1String("Plugin ok"));
QSignalSpy spy(loader.instance(), SIGNAL(destroyed()));
QVERIFY(spy.isValid());
QVERIFY(loader.unload()); // refcount reached 0, did really unload
QCOMPARE(spy.count(), 1);
// reload plugin
QVERIFY(loader.load());
QVERIFY(loader.isLoaded());
PluginInterface *instance2 = qobject_cast<PluginInterface*>(loader.instance());
QVERIFY(instance2);
QCOMPARE(instance2->pluginName(), QLatin1String("Plugin ok"));
QVERIFY(loader.unload());
}
bool EditorManager::unloadPlugin(QString const &pluginName)
{
QPluginLoader *loader = mLoaders[mPluginFileName[pluginName]];
if (loader != NULL) {
mLoaders.remove(mPluginFileName[pluginName]);
mPluginIface.remove(pluginName);
mPluginFileName.remove(pluginName);
mPluginsLoaded.removeAll(pluginName);
if (!loader->unload()) {
QMessageBox::warning(NULL, tr("error"), tr("Plugin unloading failed: ") + loader->errorString());
delete loader;
return false;
}
delete loader;
return true;
}
return false;
}
QString PluginManagerImplementation::unloadPlugin(QString const &pluginName)
{
QPluginLoader *loader = mLoaders[pluginName];
if (loader) {
mLoaders.remove(pluginName);
if (!loader->unload()) {
QString const error = loader->errorString();
delete loader;
return error;
}
delete loader;
return QString();
}
return QString("Plugin was not found");
}
bool EditorManager::loadPlugin(QString const &pluginName)
{
QPluginLoader *loader = new QPluginLoader(mPluginsDir.absoluteFilePath(pluginName));
loader->load();
QObject *plugin = loader->instance();
if (plugin) {
EditorInterface *iEditor = qobject_cast<EditorInterface *>(plugin);
if (iEditor) {
mPluginsLoaded += iEditor->id();
mPluginFileName.insert(iEditor->id(), pluginName);
mPluginIface[iEditor->id()] = iEditor;
mLoaders.insert(pluginName, loader);
return true;
}
}
QMessageBox::warning(NULL, tr("error"), tr("Plugin loading failed: ") + loader->errorString());
loader->unload();
delete loader;
return false;
}
bool ComponentManager::unloadAdaptedOutputFactoryComponentInfoById(const QString& id)
{
if(m_adaptedOutputFactoryComponentInfoById.contains(id))
{
IAdaptedOutputFactoryComponentInfo* componentInfo = m_adaptedOutputFactoryComponentInfoById[id];
if (m_adaptedOutputFactoryComponentInfoHash.contains(componentInfo))
{
QPluginLoader* plugin = m_adaptedOutputFactoryComponentInfoHash[componentInfo];
m_adaptedOutputFactoryComponentInfoHash.remove(componentInfo);
m_adaptedOutputFactoryComponentInfoById.remove(id);
IAdaptedOutputFactoryComponent* factoryComponent = m_adaptedOutputFactoryComponentByComponentInfo[componentInfo];
m_adaptedOutputFactoryComponentByComponentInfo.remove(componentInfo);
m_adaptedOutputFactoryComponentById.remove(factoryComponent->id());
emit adaptedOutputFactoryComponentUnloaded(componentInfo->id());
emit postMessage("Adapted output factory component library " + componentInfo->id() + " unloaded");
delete factoryComponent;
plugin->unload();
return true;
}
else
{
emit postMessage("Unable to unload adapted output factory component library " + componentInfo->id());
return false;
}
}
else
{
return false;
}
}
EditorManager::EditorManager(QObject *parent) : QObject(parent)
{
mPluginsDir = QDir(qApp->applicationDirPath());
while (!mPluginsDir.isRoot() && !mPluginsDir.entryList(QDir::Dirs).contains("plugins")) {
mPluginsDir.cdUp();
}
mPluginsDir.cd("plugins");
foreach (QString const &fileName, mPluginsDir.entryList(QDir::Files)) {
QPluginLoader *loader = new QPluginLoader(mPluginsDir.absoluteFilePath(fileName));
QObject *plugin = loader->instance();
if (plugin) {
EditorInterface *iEditor = qobject_cast<EditorInterface *>(plugin);
if (iEditor) {
mPluginsLoaded += iEditor->id();
mPluginFileName.insert(iEditor->id(), fileName);
mPluginIface[iEditor->id()] = iEditor;
mLoaders.insert(fileName, loader);
} else {
// TODO: Just does not work under Linux. Seems to be memory corruption when
// loading, unloading, and then loading .so file again.
// To reproduce, uncomment this, build VisualInterpreter, and try to launch QReal.
// With some tool plugins, like MetaEditorSupport or Exterminatus, works fine,
// also works fine on Windows. Investigation required.
// loader->unload();
delete loader;
}
} else {
qDebug() << "Plugin loading failed: " << loader->errorString();
loader->unload();
delete loader;
}
}
}
void suiPluginManager::unloadPlugin(const QString &fileName)
{
qDebug() << "Unload plugin: " << fileName;
if (mPluginLoaders.find(fileName) == mPluginLoaders.end())
SuiExcept(SuiExceptionItemNotFound,
QString("Plugin '%1' doesn't loaded").arg(fileName),
"void suiPluginManager::unloadPlugin(const QString &fileName)");
QMap<QString, QPluginLoader*>::iterator it = mPluginLoaders.find(fileName);
QPluginLoader *loader = it.value();
UiPluginInterface *plugInterface = qobject_cast<UiPluginInterface*>(loader->instance());
if (!plugInterface) SuiExcept(SuiExceptionInternalError,
QString("There are no plugin interface in '%1'").arg(fileName),
"void suiPluginManager::unloadPlugin(const QString &fileName)");
processUnloadPlugin(plugInterface);
mPluginLoaders.erase(it);
if (!loader->unload()) SuiExcept(SuiExceptionInternalError,
QString("Can't unload plugin '%1'").arg(fileName),
"void suiPluginManager::unloadPlugin(const QString &fileName)");
delete loader;
}
void tst_QPluginLoader::errorString()
{
#if defined(Q_OS_WINCE)
// On WinCE we need an QCoreApplication object for current dir
int argc = 0;
QCoreApplication app(argc,0);
#endif
const QString unknown(QLatin1String("Unknown error"));
{
QPluginLoader loader; // default constructed
bool loaded = loader.load();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(loaded, false);
QCOMPARE(loader.errorString(), unknown);
QObject *obj = loader.instance();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(obj, static_cast<QObject*>(0));
QCOMPARE(loader.errorString(), unknown);
bool unloaded = loader.unload();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(unloaded, false);
QCOMPARE(loader.errorString(), unknown);
}
{
QPluginLoader loader( sys_qualifiedLibraryName("tst_qpluginloaderlib")); //not a plugin
bool loaded = loader.load();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(loaded, false);
QVERIFY(loader.errorString() != unknown);
QObject *obj = loader.instance();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(obj, static_cast<QObject*>(0));
QVERIFY(loader.errorString() != unknown);
bool unloaded = loader.unload();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(unloaded, false);
QVERIFY(loader.errorString() != unknown);
}
{
QPluginLoader loader( sys_qualifiedLibraryName("nosuchfile")); //not a file
bool loaded = loader.load();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(loaded, false);
QVERIFY(loader.errorString() != unknown);
QObject *obj = loader.instance();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(obj, static_cast<QObject*>(0));
QVERIFY(loader.errorString() != unknown);
bool unloaded = loader.unload();
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QCOMPARE(unloaded, false);
QVERIFY(loader.errorString() != unknown);
}
#if !defined Q_OS_WIN && !defined Q_OS_MAC && !defined Q_OS_HPUX && !defined Q_OS_SYMBIAN && !defined Q_OS_QNX
{
QPluginLoader loader( sys_qualifiedLibraryName("almostplugin")); //a plugin with unresolved symbols
loader.setLoadHints(QLibrary::ResolveAllSymbolsHint);
QCOMPARE(loader.load(), false);
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QVERIFY(loader.errorString() != unknown);
QCOMPARE(loader.instance(), static_cast<QObject*>(0));
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QVERIFY(loader.errorString() != unknown);
QCOMPARE(loader.unload(), false);
#ifdef SHOW_ERRORS
qDebug() << loader.errorString();
#endif
QVERIFY(loader.errorString() != unknown);
}
#endif
{
QPluginLoader loader( sys_qualifiedLibraryName("theplugin")); //a plugin
QCOMPARE(loader.load(), true);
QCOMPARE(loader.errorString(), unknown);
QVERIFY(loader.instance() != static_cast<QObject*>(0));
QCOMPARE(loader.errorString(), unknown);
// Make sure that plugin really works
PluginInterface* theplugin = qobject_cast<PluginInterface*>(loader.instance());
QString pluginName = theplugin->pluginName();
QCOMPARE(pluginName, QLatin1String("Plugin ok"));
QCOMPARE(loader.unload(), true);
QCOMPARE(loader.errorString(), unknown);
}
}
bool unloadBinary() {
return loader->unload();
}
IComponentInfo* ComponentManager::loadComponent(const QFileInfo& file)
{
QString message;
if (file.exists())
{
if (hasValidExtension(file))
{
QPluginLoader* pluginLoader = new QPluginLoader(file.absoluteFilePath(), this);
QObject* component = pluginLoader->instance();
if (component)
{
{
IModelComponentInfo* mcomponentInfo = qobject_cast<IModelComponentInfo*>(component);
if (mcomponentInfo)
{
for (IModelComponentInfo* model : m_modelComponentInfoHash.keys())
{
if (!mcomponentInfo->id().compare(model->id()))
{
pluginLoader->unload();
emit postMessage("Model component library " + mcomponentInfo->id() + "has already been loaded");
return model;
}
}
mcomponentInfo->setLibraryFilePath(file.absoluteFilePath());
m_modelComponentInfoHash[mcomponentInfo] = pluginLoader;
m_modelComponentInfoById[mcomponentInfo->id()] = mcomponentInfo;
emit modelComponentInfoLoaded(mcomponentInfo);
return mcomponentInfo;
}
}
{
IAdaptedOutputFactoryComponentInfo* acomponentInfo = qobject_cast<IAdaptedOutputFactoryComponentInfo*>(component);
if (acomponentInfo)
{
acomponentInfo->setLibraryFilePath(file.absoluteFilePath());
for (IAdaptedOutputFactoryComponentInfo* model : m_adaptedOutputFactoryComponentInfoHash.keys())
{
if (!acomponentInfo->id().compare(model->id()))
{
pluginLoader->unload();
emit postMessage("Adapted output factory component library " + acomponentInfo->id() + "has already been loaded");
return model;
}
}
m_adaptedOutputFactoryComponentInfoHash[acomponentInfo] = pluginLoader;
m_adaptedOutputFactoryComponentInfoById[acomponentInfo->id()] = acomponentInfo;
IAdaptedOutputFactoryComponent* adaptedFactoryComponent = acomponentInfo->createComponentInstance();
m_adaptedOutputFactoryComponentByComponentInfo[acomponentInfo] = adaptedFactoryComponent;
m_adaptedOutputFactoryComponentById[adaptedFactoryComponent->id()] = adaptedFactoryComponent;
acomponentInfo->setLibraryFilePath(file.absoluteFilePath());
emit adaptedOutputFactoryComponentInfoLoaded(acomponentInfo);
return acomponentInfo;
}
}
delete component;
message = "\"" + file.filePath() + "\" is not a valid HydroCouple component library";
emit postMessage(message);
return nullptr;
}
else
{
message = "'/" + file.filePath() + "'/ is not a valid Qt plugin library";
emit postMessage(message);
}
pluginLoader->unload();
}
}
else
{
message = "File '" + file.filePath() + "' does not exist";
emit postMessage(message);
}
return nullptr;
}