fix #243

client/components/Nav.jsx

@@ -8,7 +8,11 @@ function Nav(props) {
         <li className="nav__item">
           <a
             className="nav__new"
-            onClick={props.newProject}
+            onClick={() => {
+              if (props.warnIfUnsavedChanges()) {
+                props.newProject();
+              }
+            }}
           >
             New
           </a>

client/modules/IDE/actions/project.js

@@ -143,7 +143,9 @@ export function resetProject() {
 }
 
 export function newProject() {
-  browserHistory.push('/');
+  setTimeout(() => {
+    browserHistory.push('/');
+  }, 0);
   return resetProject();
 }
 

client/modules/IDE/pages/IDEView.jsx

@@ -191,6 +191,7 @@ class IDEView extends React.Component {
         return false;
       }
       this.props.setUnsavedChanges(false);
+      return true;
     }
   }
 
@@ -209,6 +210,7 @@ class IDEView extends React.Component {
           stopSketch={this.props.stopSketch}
           showShareModal={this.props.showShareModal}
           openForceAuthentication={this.props.openForceAuthentication}
+          warnIfUnsavedChanges={this.warnIfUnsavedChanges}
         />
         <Toolbar
           className="Toolbar"