From 3dcfd57b07f005b29a229a3f5220e7203ec92bc3 Mon Sep 17 00:00:00 2001
From: evandrocoan <evandrocoan@hotmail.com>
Date: Tue, 19 May 2020 18:46:50 -0300
Subject: [PATCH] Fixed previewer button not resetting the state when the
 preview

window is closed by its X button
---
 qt/aqt/browser.py   | 2 +-
 qt/aqt/previewer.py | 6 +-----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/qt/aqt/browser.py b/qt/aqt/browser.py
index 443a52170..cd50a6ca8 100644
--- a/qt/aqt/browser.py
+++ b/qt/aqt/browser.py
@@ -1566,7 +1566,7 @@ where id in %s"""
     def onTogglePreview(self):
         if self._previewer:
             self._previewer.close()
-            self._previewer = None
+            self._on_preview_closed()
         else:
             self._previewer = PreviewDialog(self, self.mw, self._on_preview_closed)
             self._previewer.open()
diff --git a/qt/aqt/previewer.py b/qt/aqt/previewer.py
index cfafa1456..7d3f0d80a 100644
--- a/qt/aqt/previewer.py
+++ b/qt/aqt/previewer.py
@@ -97,10 +97,10 @@ class Previewer(QDialog):
     def close(self):
         self._on_close()
         super().close()
-        self._close_callback()
 
     def _on_close(self):
         self._open = False
+        self._close_callback()
 
     def _setup_web_view(self):
         jsinc = [
@@ -301,10 +301,6 @@ class BrowserPreviewer(MultiCardPreviewer):
             or self._parent.currentRow() < self._parent.model.rowCount(None) - 1
         )
 
-    def _on_close(self):
-        super()._on_close()
-        self._parent.previewer = None
-
     def _render_scheduled(self) -> None:
         super()._render_scheduled()
         self._updateButtons()