From f772957cd7158c36431d34a810a34e5dda1e912a Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 8 Apr 2021 20:51:16 +0530
Subject: [PATCH] Fix #1923061 [ebook-viewer: Unchecking "restore open panels"
 resets panel locations on
 restart](https://bugs.launchpad.net/calibre/+bug/1923061)

---
 src/calibre/gui2/viewer/ui.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/calibre/gui2/viewer/ui.py b/src/calibre/gui2/viewer/ui.py
index 246d11a91c..d104355376 100644
--- a/src/calibre/gui2/viewer/ui.py
+++ b/src/calibre/gui2/viewer/ui.py
@@ -685,9 +685,13 @@ class EbookViewer(MainWindow):
             QApplication.instance().safe_restore_geometry(self, geom)
         else:
             QApplication.instance().ensure_window_on_screen(self)
-        if state and get_session_pref('restore_docks', True):
+        if state:
             self.restoreState(state, self.MAIN_WINDOW_STATE_VERSION)
             self.inspector_dock.setVisible(False)
+            if not get_session_pref('restore_docks', True):
+                for dock_def in self.dock_defs.values():
+                    d = getattr(self, '{}_dock'.format(dock_def.name.partition('-')[0]))
+                    d.setVisible(False)
 
     def quit(self):
         self.close()