Popup an error message if a news download is aborted because of no active internet connection. Minor fixes.

src/calibre/gui2/dialogs/scheduler.py

@@ -205,6 +205,7 @@ class Scheduler(QObject):
 
     def __init__(self, parent, db):
         QObject.__init__(self, parent)
+        self.internet_connection_failed = False
         self._parent = parent
         self.recipe_model = RecipeModel(db)
         self.lock = QMutex(QMutex.Recursive)
@@ -305,9 +306,17 @@ class Scheduler(QObject):
             self.download(urn)
 
     def download(self, urn):
-        if not internet_connected():
-            return
         self.lock.lock()
+        if not internet_connected():
+            if not self.internet_connection_failed:
+                self.internet_connection_failed = True
+                d = error_dialog(self._parent, _('No internet connection'),
+                        _('Cannot download news as no internet connection '
+                            'is active'))
+                d.setModal(False)
+                d.show()
+            return
+        self.internet_connection_failed = False
         doit = urn not in self.download_queue
         self.lock.unlock()
         if doit:

src/calibre/gui2/library.py

@@ -35,6 +35,7 @@ class LibraryDelegate(QItemDelegate):
 
     def __init__(self, parent):
         QItemDelegate.__init__(self, parent)
+        self._parent = parent
         self.star_path = QPainterPath()
         self.star_path.moveTo(90, 50)
         for i in range(1, 5):
@@ -65,7 +66,8 @@ class LibraryDelegate(QItemDelegate):
 
         painter.save()
         if hasattr(QStyle, 'CE_ItemViewItem'):
-            QApplication.style().drawControl(QStyle.CE_ItemViewItem, option, painter)
+            QApplication.style().drawControl(QStyle.CE_ItemViewItem, option,
+                    painter, self._parent)
         elif option.state & QStyle.State_Selected:
             painter.fillRect(option.rect, option.palette.highlight())
         self.drawFocus(painter, option, option.rect)
@@ -82,8 +84,8 @@ class LibraryDelegate(QItemDelegate):
                 draw_star()
                 painter.translate(-self.SIZE, 0)
                 i += 1
-        except Exception, e:
-            traceback.print_exc(e)
+        except:
+            traceback.print_exc()
         painter.restore()
 
     def createEditor(self, parent, option, index):

src/calibre/web/feeds/news.py

@@ -28,6 +28,12 @@ from calibre.utils.threadpool import WorkRequest, ThreadPool, NoResultsPending
 from calibre.ptempfile import PersistentTemporaryFile
 from calibre.utils.date import now as nowf
 
+class LoginFailed(ValueError):
+    pass
+
+class DownloadDenied(ValueError):
+    pass
+
 class BasicNewsRecipe(Recipe):
     '''
     Abstract base class that contains logic needed in all feed fetchers.
@@ -1359,9 +1365,6 @@ class AutomaticNewsRecipe(BasicNewsRecipe):
             self.web2disk_options.keep_only_tags = []
         return BasicNewsRecipe.fetch_embedded_article(self, article, dir, f, a, num_of_feeds)
 
-class LoginFailed(ValueError):
-    pass
-
 class CalibrePeriodical(BasicNewsRecipe):
 
     #: Set this to the slug for the calibre periodical
@@ -1380,18 +1383,26 @@ class CalibrePeriodical(BasicNewsRecipe):
         raw = br.submit().read()
         if 'href="/my-account"' not in raw:
             raise LoginFailed(
-                    'Failed to log in, check your username and password for'
-                    ' the calibre Periodicals service.')
+                    _('Failed to log in, check your username and password for'
+                    ' the calibre Periodicals service.'))
 
         return br
 
     def download(self):
         import cStringIO
         self.log('Fetching downloaded recipe')
-        raw = self.browser.open_novisit(
-            'http://news.calibre-ebook.com/subscribed_files/%s/0/temp.downloaded_recipe'
-            % self.calibre_periodicals_slug
-                ).read()
+        try:
+            raw = self.browser.open_novisit(
+                'http://news.calibre-ebook.com/subscribed_files/%s/0/temp.downloaded_recipe'
+                % self.calibre_periodicals_slug
+                    ).read()
+        except Exception, e:
+            if hasattr(e, 'getcode') and e.getcode() == 403:
+                raise DownloadDenied(
+                        _('You do not have permission to download this issue.'
+                        ' Either your subscription has expired or you have'
+                        ' exceeded the maximum allowed downloads for today.'))
+            raise
         f = cStringIO.StringIO(raw)
         from calibre.utils.zipfile import ZipFile
         zf = ZipFile(f)