1 files changed, 109 insertions, 0 deletions
diff --git a/libmultimc/src/instanceloader.cpp b/libmultimc/src/instanceloader.cpp
new file mode 100644
index 00000000..9d98230f
--- /dev/null
+++ b/libmultimc/src/instanceloader.cpp
@@ -0,0 +1,109 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "include/instanceloader.h"
+
+#include <QFileInfo>
+
+#include "include/instancetypeinterface.h"
+
+#include "inifile.h"
+
+#include "pathutils.h"
+
+InstanceLoader InstanceLoader::loader;
+
+InstanceLoader::InstanceLoader() :
+	QObject(NULL)
+{
+	
+}
+
+
+InstanceLoader::InstTypeError InstanceLoader::registerInstanceType(InstanceTypeInterface *type)
+{
+	// Check to see if the type ID exists.
+	if (m_typeMap.contains(type->typeID()))
+		return TypeIDExists;
+	
+	// Set the parent to this.
+	// ((QObject *)type)->setParent(this);
+	
+	// Add it to the map.
+	m_typeMap.insert(type->typeID(), type);
+	
+	qDebug(QString("Registered instance type %1.").
+		   arg(type->typeID()).toUtf8());
+	return NoError;
+}
+
+InstanceLoader::InstTypeError InstanceLoader::createInstance(Instance *&inst, 
+															 const InstanceTypeInterface *type, 
+															 const QString &instDir)
+{
+	// Check if the type is registered.
+	if (!type || findType(type->typeID()) != type)
+		return TypeNotRegistered;
+	
+	// Create the instance.
+	return type->createInstance(inst, instDir);
+}
+
+InstanceLoader::InstTypeError InstanceLoader::loadInstance(Instance *&inst, 
+														   const InstanceTypeInterface *type, 
+														   const QString &instDir)
+{
+	// Check if the type is registered.
+	if (!type || findType(type->typeID()) != type)
+		return TypeNotRegistered;
+	
+	return type->loadInstance(inst, instDir);
+}
+
+InstanceLoader::InstTypeError InstanceLoader::loadInstance(Instance *&inst, 
+														   const QString &instDir)
+{
+	QFileInfo instConfig(PathCombine(instDir, "instance.cfg"));
+	
+	if (!instConfig.exists())
+		return NotAnInstance;
+	
+	INIFile ini;
+	ini.loadFile(instConfig.path());
+	QString typeName = ini.get("type", "net.forkk.MultiMC.StdInstance").toString();
+	const InstanceTypeInterface *type = findType(typeName);
+	
+	return loadInstance(inst, type, instDir);
+}
+
+const InstanceTypeInterface *InstanceLoader::findType(const QString &id)
+{
+	if (!m_typeMap.contains(id))
+		return NULL;
+	else
+		return m_typeMap[id];
+}
+
+InstTypeList InstanceLoader::typeList()
+{
+	InstTypeList typeList;
+	
+	for (QMap<QString, InstanceTypeInterface *>::iterator iter = m_typeMap.begin(); iter != m_typeMap.end(); iter++)
+	{
+		typeList.append(*iter);
+	}
+	
+	return typeList;
+}