From f77fc9493eefe0092e27f0202d8d0f7926bc7313 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 9 Nov 2013 08:34:15 +0530
Subject: [PATCH] Move refresh timer control into Preview class

---
 src/calibre/gui2/tweak_book/boss.py    | 4 ++--
 src/calibre/gui2/tweak_book/preview.py | 7 ++++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/calibre/gui2/tweak_book/boss.py b/src/calibre/gui2/tweak_book/boss.py
index a749e65f54..556dd90c7f 100644
--- a/src/calibre/gui2/tweak_book/boss.py
+++ b/src/calibre/gui2/tweak_book/boss.py
@@ -330,7 +330,7 @@ class Boss(QObject):
             ed.paste()
 
     def editor_data_changed(self, editor):
-        self.gui.preview.refresh_timer.start(tprefs['preview_refresh_time'] * 1000)
+        self.gui.preview.start_refresh_timer()
 
     def editor_undo_redo_state_changed(self, *args):
         self.apply_current_editor_state(update_keymap=False)
@@ -472,7 +472,7 @@ class Boss(QObject):
         QApplication.instance().quit()
 
     def shutdown(self):
-        self.gui.preview.refresh_timer.stop()
+        self.gui.preview.stop_refresh_timer()
         self.save_state()
         self.save_manager.shutdown()
         parse_worker.shutdown()
diff --git a/src/calibre/gui2/tweak_book/preview.py b/src/calibre/gui2/tweak_book/preview.py
index 883fa2ba7f..f4a68b287b 100644
--- a/src/calibre/gui2/tweak_book/preview.py
+++ b/src/calibre/gui2/tweak_book/preview.py
@@ -20,7 +20,7 @@ from calibre.constants import iswindows
 from calibre.ebooks.oeb.polish.parsing import parse
 from calibre.ebooks.oeb.base import serialize, OEB_DOCS
 from calibre.ptempfile import PersistentTemporaryDirectory
-from calibre.gui2.tweak_book import current_container, editors
+from calibre.gui2.tweak_book import current_container, editors, tprefs
 from calibre.gui2.viewer.documentview import apply_settings
 from calibre.gui2.viewer.config import config
 from calibre.utils.ipc.simple_worker import offload_worker
@@ -300,3 +300,8 @@ class Preview(QWidget):
     def clear(self):
         self.view.clear()
 
+    def start_refresh_timer(self):
+        self.refresh_timer.start(tprefs['preview_refresh_time'] * 1000)
+
+    def stop_refresh_timer(self):
+        self.refresh_timer.stop()