Avoid quitting when closing KDE file dialog

See https://bugreports.qt.io/browse/QTBUG-124386 Fixes qutebrowser#8143
pylbrecht · Apr 16, 2024 · 91be21a · 91be21a
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diff --git a/doc/changelog.asciidoc b/doc/changelog.asciidoc
@@ -41,6 +41,8 @@ Fixed
 
 - `input.insert_mode.auto_load` sometimes not triggering due to a race
   condition.
+- Worked around qutebrowser quitting when closing a KDE file dialog due to a Qt
+  bug.
 
 [[v3.1.1]]
 v3.1.1 (unreleased)

diff --git a/qutebrowser/app.py b/qutebrowser/app.py
@@ -132,6 +132,9 @@ def init(*, args: argparse.Namespace) -> None:
     crashsignal.crash_handler.init_faulthandler()
 
     objects.qapp.setQuitOnLastWindowClosed(False)
+    # WORKAROUND for KDE file dialogs / QEventLoopLocker quitting:
+    # https://bugreports.qt.io/browse/QTBUG-124386
+    objects.qapp.setQuitLockEnabled(False)
     quitter.instance.shutting_down.connect(QApplication.closeAllWindows)
 
     _init_icon()