allow auto close when all jobs finished

src/calibre/gui2/__init__.py

@@ -843,6 +843,12 @@ def show_restart_warning(msg, parent=None):
     return d.do_restart
 
 
+def show_auto_close_warning(parent, timeout=30):
+    from calibre.gui2.dialogs.message_box import AutoCloseNotification
+    d = AutoCloseNotification(parent=parent, timeout=timeout)
+    return d.exec() == QDialog.DialogCode.Accepted
+
+
 class Dispatcher(QObject):
     '''
     Convenience class to use Qt signals with arbitrary python callables.

src/calibre/gui2/dialogs/jobs.ui

@@ -106,6 +106,17 @@
      </property>
     </widget>
    </item>
+   <item row="5" column="0" colspan="2">
+    <widget class="QCheckBox" name="auto_close_calibre">
+     <property name="text">
+      <string>&amp;Automatically close calibre after all jobs are finished</string>
+     </property>
+     <property name="icon">
+      <iconset resource="../../../../resources/images.qrc">
+       <normaloff>:/images/dialog_warning.png</normaloff>:/images/dialog_warning.png</iconset>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <customwidgets>

src/calibre/gui2/dialogs/message_box.py

@@ -25,6 +25,7 @@ from qt.core import (
     Qt,
     QTextBrowser,
     QTextDocument,
+    QTimer,
     QVBoxLayout,
     QWidget,
     pyqtSignal,
@@ -378,6 +379,39 @@ class ErrorNotification(MessageBox):  # {{{
 # }}}
 
 
+class AutoCloseNotification(MessageBox):  # {{{
+
+    def __init__(self, timeout=30, parent=None):
+        super().__init__(
+            MessageBox.QUESTION,
+            _('calibre automatic closing'),
+            _('calibre is about to close automatically. Do you want to confim or abort the action?'),
+            parent=parent,
+            show_copy_button=False,
+            q_icon='dialog_warning.png',
+            default_yes=True,
+            yes_text=None,
+            no_text=_('Abort'),
+        )
+        self.timeout = timeout
+        self.timer = QTimer(self)
+        self.timer.setInterval(self.timeout * 1000)
+        self.timer.timeout.connect(self.accept)
+        self.timer.setSingleShot(True)
+        self.updater = QTimer(self)
+        self.updater.setInterval(1000)
+        self.updater.timeout.connect(self.update_texts)
+        self.updater.setSingleShot(False)
+        self.timer.start()
+        self.updater.start()
+        self.update_texts()
+
+    def update_texts(self):
+        time = self.timer.remainingTime() // 1000
+        self.bb.button(QDialogButtonBox.StandardButton.Yes).setText(_('Close now ({}s)').format(time))
+# }}}
+
+
 class JobError(QDialog):  # {{{
 
     WIDTH = 600

src/calibre/gui2/ui.py

@@ -26,7 +26,19 @@ from calibre.constants import DEBUG, __appname__, config_dir, filesystem_encodin
 from calibre.customize import PluginInstallationType
 from calibre.customize.ui import available_store_plugins, interface_actions
 from calibre.db.legacy import LibraryDatabase
-from calibre.gui2 import Dispatcher, GetMetadata, config, error_dialog, gprefs, info_dialog, max_available_height, open_url, question_dialog, warning_dialog
+from calibre.gui2 import (
+    Dispatcher,
+    GetMetadata,
+    config,
+    error_dialog,
+    gprefs,
+    info_dialog,
+    max_available_height,
+    open_url,
+    question_dialog,
+    show_auto_close_warning,
+    warning_dialog,
+)
 from calibre.gui2.auto_add import AutoAdder
 from calibre.gui2.changes import handle_changes
 from calibre.gui2.cover_flow import CoverFlowMixin
@@ -238,6 +250,7 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin,  # {{{
         self.jobs_dialog = JobsDialog(self, self.job_manager)
         self.jobs_button = JobsButton(parent=self)
         self.jobs_button.initialize(self.jobs_dialog, self.job_manager)
+        self.job_manager.job_done.connect(self._jobs_auto_close)
         # }}}
 
         LayoutMixin.init_layout_mixin(self)
@@ -1219,6 +1232,18 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin,  # {{{
             self.system_tray_icon.setVisible(False)
         QApplication.instance().exit()
 
+    def _jobs_auto_close(self, nnum):
+        if self.jobs_dialog.auto_close_calibre.isChecked() and nnum == 0:
+            self.auto_close_calibre()
+
+    def auto_close_calibre(self):
+        timed_print('Auto-closing asked...')
+        if show_auto_close_warning(self):
+            self.quit(confirm_quit=False)
+        else:
+            timed_print('Auto-closing rejected')
+            self.jobs_dialog.auto_close_calibre.setChecked(False)
+
     def donate(self, *args):
         from calibre.utils.localization import localize_website_link
         open_url(QUrl(localize_website_link('https://calibre-ebook.com/donate')))