From 324a5a2635580c2f347774e3976716bf90eacd1a Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 7 Aug 2016 06:46:14 +0530
Subject: [PATCH] Do not show an error if the user tries to quit calibre while
 editing a cell in the book list. Instead, just silently abort the edit. See
 #1610539 (Data error when closing calibre)

---
 src/calibre/gui2/library/models.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/calibre/gui2/library/models.py b/src/calibre/gui2/library/models.py
index b563a0c6b8..c47377cfff 100644
--- a/src/calibre/gui2/library/models.py
+++ b/src/calibre/gui2/library/models.py
@@ -1048,6 +1048,9 @@ class BooksModel(QAbstractTableModel):  # {{{
         return True
 
     def setData(self, index, value, role):
+        from calibre.gui2.ui import get_gui
+        if get_gui().shutting_down:
+            return False
         if role == Qt.EditRole:
             from calibre.gui2.ui import get_gui
             try:
@@ -1633,6 +1636,9 @@ class DeviceBooksModel(BooksModel):  # {{{
             return (section+1)
 
     def setData(self, index, value, role):
+        from calibre.gui2.ui import get_gui
+        if get_gui().shutting_down:
+            return False
         done = False
         if role == Qt.EditRole:
             row, col = index.row(), index.column()