Warn in onNew if there are unsaved changes

Closes issue #185
mkeeter · Sep 13, 2017 · 2618d09 · 2618d09
1 parent 86655ff
commit 2618d09
Showing 1 changed file with 9 additions and 4 deletions.
diff --git a/app/app/app.cpp b/app/app/app.cpp
@@ -91,11 +91,16 @@ QStringList App::nodePaths() const
 
 void App::onNew()
 {
-    graph->clear();
-    filename.clear();
-    undo_stack->clear();
+    if (undo_stack->isClean() || QMessageBox::question(
+                NULL, "Discard unsaved changes?",
+                "Discard unsaved changes?") == QMessageBox::Yes)
+    {
+        graph->clear();
+        filename.clear();
+        undo_stack->clear();
 
-    emit(filenameChanged(""));
+        emit(filenameChanged(""));
+    }
 }
 
 void App::onSave()