##// END OF EJS Templates
Implements plugin loading method
Alexandre Leroux -
r67:e206357a6486
parent child
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@@ -3,10 +3,63
3 3 #include <Plugin/IPlugin.h>
4 4
5 5 #include <QDir>
6 #include <QLibrary>
7 #include <QPluginLoader>
6 8
7 9 Q_LOGGING_CATEGORY(LOG_PluginManager, "PluginManager")
8 10
11 namespace {
12
13 /// Key for retrieving metadata of the plugin
14 const auto PLUGIN_METADATA_KEY = QStringLiteral("MetaData");
15
16 /// Key for retrieving the name of the plugin in its metadata
17 const auto PLUGIN_NAME_KEY = QStringLiteral("name");
18
19 } // namespace
20
9 21 struct PluginManager::PluginManagerPrivate {
22 /**
23 * Loads a single plugin into SciQlop. The method has no effect if the plugin is malformed (e.g.
24 * wrong library type, missing metadata, etc.)
25 * @param pluginPath the path to the plugin library.
26 */
27 void loadPlugin(const QString &pluginPath)
28 {
29 qCDebug(LOG_PluginManager())
30 << QObject::tr("Attempting to load file '%1' as a plugin").arg(pluginPath);
31
32 if (QLibrary::isLibrary(pluginPath)) {
33 QPluginLoader pluginLoader{pluginPath};
34
35 // Retrieving the plugin name to check if it can be loaded (i.e. no plugin with the same
36 // name has been registered yet)
37 auto metadata = pluginLoader.metaData().value(PLUGIN_METADATA_KEY).toObject();
38 auto pluginName = metadata.value(PLUGIN_NAME_KEY).toString();
39
40 if (pluginName.isEmpty()) {
41 /// @todo ALX : log error
42 }
43 else if (m_RegisteredPlugins.contains(pluginName)) {
44 /// @todo ALX : log error
45 }
46 else {
47 if (auto pluginInstance = qobject_cast<IPlugin *>(pluginLoader.instance())) {
48 pluginInstance->initialize();
49 m_RegisteredPlugins.insert(pluginName, pluginPath);
50 }
51 else {
52 /// @todo ALX : log error
53 }
54 }
55 }
56 else {
57 /// @todo ALX : log error
58 }
59 }
60
61 /// Registered plugins (key: plugin name, value: plugin path)
62 QHash<QString, QString> m_RegisteredPlugins;
10 63 };
11 64
12 65 PluginManager::PluginManager() : impl{spimpl::make_unique_impl<PluginManagerPrivate>()}
@@ -18,7 +71,7 void PluginManager::loadPlugins(const QDir &pluginDir)
18 71 // Load plugins
19 72 auto pluginInfoList = pluginDir.entryInfoList(QDir::Files, QDir::Name);
20 73 for (auto pluginInfo : qAsConst(pluginInfoList)) {
21 /// @todo ALX
74 impl->loadPlugin(pluginInfo.absoluteFilePath());
22 75 }
23 76 }
24 77
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