From 1191dfc68ec1c76ac7feb02cd2891d9d850da106 Mon Sep 17 00:00:00 2001
From: "Zheng, Lei" <realthunder.dev@gmail.com>
Date: Tue, 18 Sep 2018 19:14:50 +0800
Subject: [PATCH] gui: change timer creation

---
 gui.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/gui.py b/gui.py
index c05a325..616a0c5 100644
--- a/gui.py
+++ b/gui.py
@@ -10,6 +10,8 @@ class SelectionObserver:
     def __init__(self):
         self._attached = False
         self.timer = QtCore.QTimer()
+        self.timer.setSingleShot(True)
+        self.timer.timeout.connect(self.onTimer)
         self.cmds = []
         self.elements = dict()
         self.attach()
@@ -83,9 +85,6 @@ class SelectionObserver:
             for cmd in self.cmds:
                 cmd.onSelectionChange(False)
             return
-        if not self.timer.isSingleShot():
-            self.timer.setSingleShot(True)
-            self.timer.timeout.connect(self.onTimer)
         self.timer.start(50)
 
     def onTimer(self):