Tracing dirty state of edited file

1 files changed, 5 insertions, 2 deletions

diff --git a/jfr_playoff/gui/variables.py b/jfr_playoff/gui/variables.py
index abb3cc1..8927179 100644
--- a/jfr_playoff/gui/variables.py
+++ b/jfr_playoff/gui/variables.py
@@ -5,10 +5,13 @@ import tkinter as tk
 class NotifyVar(tk.Variable):
     def __init__(self, *args, **kwargs):
         tk.Variable.__init__(self, *args, **kwargs)
-        self.trace('w', self._onChange)
+        self._prevValue = self.get()
+        self._root.after(0, self.trace, 'w', self._onChange)
 
     def _onChange(self, *args):
-        self._root.event_generate('<<ValueChanged>>', when='tail')
+        if self._prevValue != self.get():
+            self._root.event_generate('<<ValueChanged>>', when='tail')
+        self._prevValue = self.get()
 
 class NotifyStringVar(NotifyVar, tk.StringVar):
     pass