Fetch news: Add a sub-menu to the right click menu of the Fetch news button that shows recently downloaded news sources. See #2119557 ([Enhancement] Star news)

src/calibre/gui2/dialogs/scheduler.py

@@ -11,6 +11,7 @@ import textwrap
 from collections import OrderedDict
 from contextlib import suppress
 from datetime import timedelta
+from functools import lru_cache, partial
 
 from qt.core import (
     QAction,
@@ -52,6 +53,7 @@ from calibre import force_unicode
 from calibre.gui2 import config as gconf
 from calibre.gui2 import error_dialog, gprefs
 from calibre.gui2.search_box import SearchBox2
+from calibre.utils.config import JSONConfig
 from calibre.utils.date import utcnow
 from calibre.utils.localization import canonicalize_lang, get_lang
 from calibre.utils.network import internet_connected
@@ -59,6 +61,11 @@ from calibre.web.feeds.recipes.model import RecipeModel
 from polyglot.builtins import iteritems
 
 
+@lru_cache(2)
+def sprefs():
+    return JSONConfig('recipe-scheduler')
+
+
 def convert_day_time_schedule(val):
     day_of_week, hour, minute = val
     if day_of_week == -1:
@@ -640,6 +647,10 @@ class Scheduler(QObject):
                 QIcon.ic('download-metadata.png'),
                 _('Download all scheduled news sources'),
                 self.download_all_scheduled)
+        self.recent_menu = m = QMenu(_('Redownload...'))
+        m.addAction('dummy')
+        m.aboutToShow.connect(self.populate_recent_menu)
+        self.news_menu.addMenu(m)
 
         self.timer = QTimer(self)
         self.timer.start(int(self.INTERVAL * 60 * 1000))
@@ -647,6 +658,20 @@ class Scheduler(QObject):
         self.oldest = gconf['oldest_news']
         QTimer.singleShot(5 * 1000, self.oldest_check)
 
+    def populate_recent_menu(self):
+        m: QMenu = self.recent_menu
+        m.clear()
+        p = sprefs()
+        history = p.get('history', ())
+        if history:
+            for arg in reversed(history):
+                ac = QAction(arg['title'], m)
+                m.addAction(ac)
+                ac.triggered.connect(partial(self.download, arg['urn']))
+        else:
+            nrdnac = QAction(_('No recently downloaded news'), m)
+            m.addAction(nrdnac)
+
     @property
     def db(self):
         from calibre.gui2.ui import get_gui
@@ -719,6 +744,13 @@ class Scheduler(QObject):
 
     def recipe_downloaded(self, arg):
         self.lock.lock()
+        p = sprefs()
+        history = p.get('history', [])
+        history = [a for a in history if a['urn'] != arg['urn']]
+        history.append(arg)
+        if len(history) > (limit := 20):
+            history = history[len(history)-limit:]
+        p.set('history', history)
         try:
             self.recipe_model.update_last_downloaded(arg['urn'])
             self.download_queue.remove(arg['urn'])