- Clear code model when project changes (#1262).

- Small changes.

mix/CodeModel.h

@@ -164,6 +164,8 @@ public:
 	/// Find a contract by document id
 	/// @returns CompiledContract object or null if not found
 	Q_INVOKABLE CompiledContract* contractByDocumentId(QString _documentId) const;
+	/// Reset code model
+	Q_INVOKABLE void reset() { reset(QVariantMap()); }
 
 signals:
 	/// Emited on compilation state change

mix/qml/ProjectModel.qml

@@ -64,7 +64,7 @@ Item {
 	Connections {
 		target: appContext
 		onAppLoaded: {
-			if (projectSettings.lastProjectPath)
+			if (projectSettings.lastProjectPath && projectSettings.lastProjectPath !== "")
 				projectModel.loadProject(projectSettings.lastProjectPath)
 		}
 	}
@@ -130,6 +130,14 @@ Item {
 		id: projectStateListModel
 	}
 
+	Connections
+	{
+		target: projectModel
+		onProjectClosed: {
+			projectSettings.lastProjectPath = "";
+		}
+	}
+
 	Settings {
 		id: projectSettings
 		property string lastProjectPath;

mix/qml/StateListModel.qml

@@ -134,6 +134,7 @@ Item {
 		onProjectClosed: {
 			stateListModel.clear();
 			stateList = [];
+			codeModel.reset();
 		}
 		onProjectLoading: stateListModel.loadStatesFromProject(projectData);
 		onProjectSaving: {
@@ -148,6 +149,7 @@ Item {
 			state.title = qsTr("Default");
 			projectData.states = [ state ];
 			projectData.defaultStateIndex = 0;
+			stateListModel.loadStatesFromProject(projectData);
 		}
 	}
 
@@ -264,6 +266,7 @@ Item {
 				defaultStateIndex--;
 
 			save();
+
 		}
 
 		function save() {
@@ -284,6 +287,8 @@ Item {
 			else
 				defaultStateIndex = 0;
 			var items = projectData.states;
+			stateListModel.clear();
+			stateList = [];
 			for(var i = 0; i < items.length; i++) {
 				var item = fromPlainStateItem(items[i]);
 				stateListModel.append(item);

mix/qml/js/ProjectModel.js

@@ -105,7 +105,6 @@ function loadProject(path) {
 			contractSources[doc.documentId] = fileIo.readFile(doc.path);
 	}
 	codeModel.reset(contractSources);
-
 }
 
 function addFile(fileName) {