private void LoadPluginTypes(bool showErrors)
{
lock (_pluginTypesTable)
{
// reset existing contents
_pluginTypesTable.Clear();
PluginLoader pluginLoader = new PluginLoader(typeof(WriterPlugin).Assembly);
//register the callbacks for each supported plugin type.
foreach (Type pluginType in SupportedPluginTypes)
{
//subscribe for a callback when a matching implementation type is found.
pluginLoader.AddPluginTypeCallback(pluginType, new PluginLoader.PluginLoadedCallback(RegisterPluginImpl));
//create a list to hold discovered plugin implementations.
_pluginTypesTable[pluginType] = new ArrayList();
}
// load from plugin directory
if (PluginDirectory != null && Directory.Exists(PluginDirectory))
{
pluginLoader.LoadPluginsFromDirectory(PluginDirectory, showErrors);
}
// load from plugins specified in the registry
LoadPluginsFromRegistryPaths(pluginLoader, showErrors);
// load from legacy plugin directory
if (PluginDirectoryLegacy != null && Directory.Exists(PluginDirectoryLegacy))
{
pluginLoader.LoadPluginsFromDirectory(PluginDirectoryLegacy, showErrors);
}
}
// fire event
if (PluginListChanged != null)
{
PluginListChanged(this, EventArgs.Empty);
}
}