From 084a672f178cc8799749f604082ce1378c58b0df Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 25 Feb 2025 08:37:06 +0530
Subject: [PATCH] E-book viewer: Fix viewer not closing on SIGINT. Fixes
 #2099777 [ebook-viewer refuses to die after
 ctrl+c](https://bugs.launchpad.net/calibre/+bug/2099777)

---
 src/calibre/gui2/viewer/main.py | 1 +
 src/calibre/gui2/viewer/ui.py   | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/src/calibre/gui2/viewer/main.py b/src/calibre/gui2/viewer/main.py
index bf77934571..8aeb853242 100644
--- a/src/calibre/gui2/viewer/main.py
+++ b/src/calibre/gui2/viewer/main.py
@@ -155,6 +155,7 @@ def run_gui(app, opts, args, internal_book_data, listener=None):
         open_at=opts.open_at, continue_reading=opts.continue_reading, force_reload=opts.force_reload,
         calibre_book_data=internal_book_data)
     main.set_exception_handler()
+    app.shutdown_signal_received.connect(main.request_close)
     if len(args) > 1:
         acc.events.append(os.path.abspath(args[-1]))
     acc.got_file.connect(main.handle_commandline_arg)
diff --git a/src/calibre/gui2/viewer/ui.py b/src/calibre/gui2/viewer/ui.py
index 0f011e59f9..8c8e5e677f 100644
--- a/src/calibre/gui2/viewer/ui.py
+++ b/src/calibre/gui2/viewer/ui.py
@@ -811,6 +811,9 @@ class EbookViewer(MainWindow):
             self.cfi_changed(cfi)
         self.force_close()
 
+    def request_close(self):
+        self.close()
+
     def closeEvent(self, ev):
         if self.shutdown_done:
             return