From 2c1b0578a4bd4b34059af7e9dee2586e309df713 2013-04-24 04:47:51
From: MinRK <benjaminrk@gmail.com>
Date: 2013-04-24 04:47:51
Subject: [PATCH] add handle_status to qtconsole

So that the qtconsole can notice that a kernel has restarted uncleanly

---

diff --git a/IPython/frontend/qt/console/frontend_widget.py b/IPython/frontend/qt/console/frontend_widget.py
index 41de30c..d36b628 100644
--- a/IPython/frontend/qt/console/frontend_widget.py
+++ b/IPython/frontend/qt/console/frontend_widget.py
@@ -541,6 +541,20 @@ class FrontendWidget(HistoryConsoleWidget, BaseFrontendMixin):
                     if reply == QtGui.QMessageBox.Yes:
                         self.exit_requested.emit(self)
 
+    def _handle_status(self, msg):
+        """Handle status message"""
+        # This is where a busy/idle indicator would be triggered,
+        # when we make one.
+        state = msg['content'].get('execution_state', '')
+        if state == 'starting':
+            # kernel started while we were running
+            if self._executing:
+                self._handle_kernel_restarted(died=True)
+        elif state == 'idle':
+            pass
+        elif state == 'busy':
+            pass
+
     def _started_channels(self):
         """ Called when the KernelManager channels have started listening or
             when the frontend is assigned an already listening KernelManager.