From c387c15eb07a22761a3eaf44ef90e626b6641822 Mon Sep 17 00:00:00 2001
From: Christophe Dumez <chris@qbittorrent.org>
Date: Sat, 13 Nov 2010 19:36:46 +0000
Subject: [PATCH] Fix possible rule saving issue Matching articles are now
 previewable in the rss downloader dialog Make sure Rss downloading is enabled
 before checking for matching rules

---
 src/GUI.cpp                        |  9 +----
 src/headlessloader.h               |  4 +-
 src/qtlibtorrent/qbtsession.cpp    | 16 ++++++++
 src/qtlibtorrent/qbtsession.h      |  8 +++-
 src/rss/automatedrssdownloader.cpp | 63 +++++++++++++++++++++++++++++-
 src/rss/automatedrssdownloader.h   |  2 +
 src/rss/automatedrssdownloader.ui  | 11 ++++--
 src/rss/rss_imp.cpp                |  4 +-
 src/rss/rssarticle.cpp             |  8 ----
 src/rss/rssarticle.h               |  4 +-
 src/rss/rssdownloadrule.cpp        | 12 ++++++
 src/rss/rssdownloadrule.h          |  3 ++
 src/rss/rssdownloadrulelist.cpp    |  3 ++
 src/rss/rssfeed.cpp                | 32 ++++++++-------
 src/rss/rssfolder.cpp              | 19 +++++++--
 src/rss/rssfolder.h                |  1 +
 src/rss/rssmanager.cpp             | 17 +++++++-
 src/rss/rssmanager.h               |  6 ++-
 18 files changed, 174 insertions(+), 48 deletions(-)

diff --git a/src/GUI.cpp b/src/GUI.cpp
index 1f240984c..7aaa6c719 100644
--- a/src/GUI.cpp
+++ b/src/GUI.cpp
@@ -131,7 +131,7 @@ GUI::GUI(QWidget *parent, QStringList torrentCmdLine) : QMainWindow(parent), for
   // Fix Tool bar layout
   toolBar->layout()->setSpacing(7);
   // Creating Bittorrent session
-  BTSession = new QBtSession();
+  BTSession = QBtSession::instance();
   connect(BTSession, SIGNAL(fullDiskError(QTorrentHandle&, QString)), this, SLOT(fullDiskError(QTorrentHandle&, QString)));
   connect(BTSession, SIGNAL(finishedTorrent(QTorrentHandle&)), this, SLOT(finishedTorrent(QTorrentHandle&)));
   connect(BTSession, SIGNAL(trackerAuthenticationRequired(QTorrentHandle&)), this, SLOT(trackerAuthenticationRequired(QTorrentHandle&)));
@@ -277,11 +277,6 @@ GUI::~GUI() {
   // Workaround to avoid bug http://bugreports.qt.nokia.com/browse/QTBUG-7305
   setUnifiedTitleAndToolBarOnMac(false);
 #endif
-  // Async deletion of Bittorrent session as early as possible
-  // in order to speed up exit
-  session_proxy sp;
-  if(BTSession)
-    sp = BTSession->asyncDeletion();
   // Some saving
   properties->saveSettings();
   disconnect(tabs, SIGNAL(currentChanged(int)), this, SLOT(tab_changed(int)));
@@ -328,7 +323,7 @@ GUI::~GUI() {
   delete switchRSSShortcut;
   // Delete BTSession objects
   qDebug("Deleting BTSession");
-  delete BTSession;
+  QBtSession::drop();
   // May freeze for a few seconds after the next line
   // because the Bittorrent session proxy will
   // actually be deleted now and destruction
diff --git a/src/headlessloader.h b/src/headlessloader.h
index fd4edab32..ccd6b215d 100644
--- a/src/headlessloader.h
+++ b/src/headlessloader.h
@@ -44,7 +44,7 @@ public:
     // Enable Web UI
     Preferences::setWebUiEnabled(true);
     // Instanciate Bittorrent Object
-    BTSession = new QBtSession();
+    BTSession = QBtSession::instance();
     connect(BTSession, SIGNAL(newConsoleMessage(QString)), this, SLOT(displayConsoleMessage(QString)));
     // Resume unfinished torrents
     BTSession->startUpTorrents();
@@ -61,7 +61,7 @@ public:
   }
 
   ~HeadlessLoader() {
-    delete BTSession;
+    QBtSession::drop();
   }
 
 public slots:
diff --git a/src/qtlibtorrent/qbtsession.cpp b/src/qtlibtorrent/qbtsession.cpp
index 3d254802b..a03767b83 100644
--- a/src/qtlibtorrent/qbtsession.cpp
+++ b/src/qtlibtorrent/qbtsession.cpp
@@ -68,6 +68,8 @@
 #include <boost/filesystem/exception.hpp>
 #include <queue>
 
+QBtSession* QBtSession::m_instance = 0;
+
 const int MAX_TRACKER_ERRORS = 2;
 const float MAX_RATIO = 100.;
 enum VersionType { NORMAL,ALPHA,BETA,RELEASE_CANDIDATE,DEVEL };
@@ -2628,3 +2630,17 @@ void QBtSession::startUpTorrents() {
   settings.setValue("ported_to_new_savepath_system", true);
   qDebug("Unfinished torrents resumed");
 }
+
+QBtSession * QBtSession::instance()
+{
+  if(!m_instance) {
+    m_instance = new QBtSession;
+  }
+  return m_instance;
+}
+
+void QBtSession::drop()
+{
+  if(m_instance)
+    delete m_instance;
+}
diff --git a/src/qtlibtorrent/qbtsession.h b/src/qtlibtorrent/qbtsession.h
index f97258a21..76f3161d2 100644
--- a/src/qtlibtorrent/qbtsession.h
+++ b/src/qtlibtorrent/qbtsession.h
@@ -66,9 +66,13 @@ class QBtSession : public QObject {
   Q_OBJECT
   Q_DISABLE_COPY(QBtSession)
 
+private:
+  explicit QBtSession();
+  static QBtSession* m_instance;
+
 public:
-  // Constructor / Destructor
-  QBtSession();
+  static QBtSession* instance();
+  static void drop();
   ~QBtSession();
   QTorrentHandle getTorrentHandle(QString hash) const;
   std::vector<torrent_handle> getTorrents() const;
diff --git a/src/rss/automatedrssdownloader.cpp b/src/rss/automatedrssdownloader.cpp
index f8dd4b050..5df23a07f 100644
--- a/src/rss/automatedrssdownloader.cpp
+++ b/src/rss/automatedrssdownloader.cpp
@@ -41,6 +41,8 @@
 #include "rssdownloadrulelist.h"
 #include "preferences.h"
 #include "qinisettings.h"
+#include "rssmanager.h"
+#include "rssfeed.h"
 
 AutomatedRssDownloader::AutomatedRssDownloader(QWidget *parent) :
   QDialog(parent),
@@ -49,6 +51,8 @@ AutomatedRssDownloader::AutomatedRssDownloader(QWidget *parent) :
   ui->setupUi(this);
   ui->listRules->setSortingEnabled(true);
   ui->listRules->setSelectionMode(QAbstractItemView::ExtendedSelection);
+  ui->treeMatchingArticles->setSortingEnabled(true);
+
   connect(ui->listRules, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(displayRulesListMenu(const QPoint&)));
   m_ruleList = RssDownloadRuleList::instance();
   initLabelCombobox();
@@ -58,6 +62,9 @@ AutomatedRssDownloader::AutomatedRssDownloader(QWidget *parent) :
   connect(ui->listRules, SIGNAL(itemSelectionChanged()), SLOT(updateRuleDefinitionBox()));
   connect(ui->listRules, SIGNAL(itemSelectionChanged()), SLOT(updateFeedList()));
   connect(ui->listFeeds, SIGNAL(itemChanged(QListWidgetItem*)), SLOT(handleFeedCheckStateChange(QListWidgetItem*)));
+  // Update matching articles when necessary
+  connect(ui->lineContains, SIGNAL(textEdited(QString)), SLOT(updateMatchingArticles()));
+  connect(ui->lineNotContains, SIGNAL(textEdited(QString)), SLOT(updateMatchingArticles()));
   updateRuleDefinitionBox();
   updateFeedList();
 }
@@ -149,6 +156,7 @@ void AutomatedRssDownloader::updateFeedList()
   }
   ui->listFeeds->setEnabled(!ui->listRules->selectedItems().isEmpty());
   connect(ui->listFeeds, SIGNAL(itemChanged(QListWidgetItem*)), SLOT(handleFeedCheckStateChange(QListWidgetItem*)));
+  updateMatchingArticles();
 }
 
 bool AutomatedRssDownloader::isRssDownloaderEnabled() const
@@ -224,7 +232,11 @@ void AutomatedRssDownloader::saveCurrentRule(QListWidgetItem * item)
 {
   qDebug() << Q_FUNC_INFO << item;
   if(!item) return;
-  if(!ui->listRules->findItems(item->text(), Qt::MatchExactly).isEmpty()) return;
+  if(ui->listRules->findItems(item->text(), Qt::MatchExactly).isEmpty()) {
+    qDebug() << "Could not find rule" << item->text() << "in the UI list";
+    qDebug() << "Probably removed the item, no need to save it";
+    return;
+  }
   RssDownloadRule rule = m_ruleList->getRule(item->text());
   if(!rule.isValid()) {
     rule.setName(item->text());
@@ -263,6 +275,7 @@ void AutomatedRssDownloader::on_addRuleBtn_clicked()
   QListWidgetItem * item = new QListWidgetItem(rule, ui->listRules);
   item->setFlags(item->flags()|Qt::ItemIsUserCheckable);
   item->setCheckState(Qt::Checked); // Enable as a default
+  ui->listRules->clearSelection();
   ui->listRules->setCurrentItem(item);
 }
 
@@ -402,6 +415,54 @@ void AutomatedRssDownloader::handleFeedCheckStateChange(QListWidgetItem *feed_it
       m_ruleList->saveRule(rule);
     }
   }
+  // Update Matching articles
+  updateMatchingArticles();
+}
+
+void AutomatedRssDownloader::updateMatchingArticles()
+{
+  ui->treeMatchingArticles->clear();
+  if(ui->ruleDefBox->isEnabled()) {
+    saveCurrentRule(ui->listRules->currentItem());
+  }
+  const QHash<QString, RssFeed*> all_feeds = RssManager::instance()->getAllFeedsAsHash();
+
+  foreach(const QListWidgetItem *rule_item, ui->listRules->selectedItems()) {
+    RssDownloadRule rule = m_ruleList->getRule(rule_item->text());
+    if(!rule.isValid()) continue;
+    foreach(const QString &feed_url, rule.rssFeeds()) {
+      Q_ASSERT(all_feeds.contains(feed_url));
+      const RssFeed *feed = all_feeds.value(feed_url);
+      const QStringList matching_articles = rule.findMatchingArticles(feed);
+      if(!matching_articles.isEmpty())
+        addFeedArticlesToTree(feed, matching_articles);
+    }
+  }
+}
+
+void AutomatedRssDownloader::addFeedArticlesToTree(const RssFeed *feed, const QStringList &articles)
+{
+  // Check if this feed is already in the tree
+  QTreeWidgetItem *treeFeedItem = 0;
+  for(int i=0; i<ui->treeMatchingArticles->topLevelItemCount(); ++i) {
+    QTreeWidgetItem *item = ui->treeMatchingArticles->topLevelItem(i);
+    if(item->data(0, Qt::UserRole).toString() == feed->getUrl()) {
+      treeFeedItem = item;
+      break;
+    }
+  }
+  // If there is none, create it
+  if(!treeFeedItem) {
+    treeFeedItem = new QTreeWidgetItem(QStringList() << feed->getName());
+    treeFeedItem->setData(0, Qt::UserRole, feed->getUrl());
+    ui->treeMatchingArticles->addTopLevelItem(treeFeedItem);
+  }
+  // Insert the articles
+  foreach(const QString &art, articles) {
+    QTreeWidgetItem *item = new QTreeWidgetItem(QStringList() << art);
+    treeFeedItem->addChild(item);
+  }
+  ui->treeMatchingArticles->expandItem(treeFeedItem);
 }
 
 
diff --git a/src/rss/automatedrssdownloader.h b/src/rss/automatedrssdownloader.h
index aa48a0b87..6b876d155 100644
--- a/src/rss/automatedrssdownloader.h
+++ b/src/rss/automatedrssdownloader.h
@@ -70,10 +70,12 @@ private slots:
   void on_exportBtn_clicked();
   void on_importBtn_clicked();
   void renameSelectedRule();
+  void updateMatchingArticles();
 
 private:
   RssDownloadRule getCurrentRule() const;
   void initLabelCombobox();
+  void addFeedArticlesToTree(const RssFeed *feed, const QStringList& articles);
 
 private:
   Ui::AutomatedRssDownloader *ui;
diff --git a/src/rss/automatedrssdownloader.ui b/src/rss/automatedrssdownloader.ui
index 7bcbecfd0..5aceba1eb 100644
--- a/src/rss/automatedrssdownloader.ui
+++ b/src/rss/automatedrssdownloader.ui
@@ -266,10 +266,15 @@
         </widget>
        </item>
        <item>
-        <widget class="QListWidget" name="listMatchingArticles">
-         <property name="enabled">
+        <widget class="QTreeWidget" name="treeMatchingArticles">
+         <attribute name="headerVisible">
           <bool>false</bool>
-         </property>
+         </attribute>
+         <column>
+          <property name="text">
+           <string notr="true">1</string>
+          </property>
+         </column>
         </widget>
        </item>
       </layout>
diff --git a/src/rss/rss_imp.cpp b/src/rss/rss_imp.cpp
index 763497c26..43871cc7c 100644
--- a/src/rss/rss_imp.cpp
+++ b/src/rss/rss_imp.cpp
@@ -580,7 +580,7 @@ void RSSImp::updateRefreshInterval(unsigned int val) {
 RSSImp::RSSImp(QBtSession *BTSession) : QWidget(), BTSession(BTSession){
   setupUi(this);
 
-  rssmanager = new RssManager(BTSession);
+  rssmanager = RssManager::instance();
 
   listStreams = new FeedListWidget(splitter_h, rssmanager);
   splitter_h->insertWidget(0, listStreams);
@@ -634,7 +634,7 @@ RSSImp::~RSSImp(){
   qDebug("Deleting RSSImp...");
   saveFoldersOpenState();
   delete listStreams;
-  delete rssmanager;
+  RssManager::drop();
   qDebug("RSSImp deleted");
 }
 
diff --git a/src/rss/rssarticle.cpp b/src/rss/rssarticle.cpp
index 0d06e9f4f..a06cee8b0 100644
--- a/src/rss/rssarticle.cpp
+++ b/src/rss/rssarticle.cpp
@@ -252,10 +252,6 @@ bool RssArticle::has_attachment() const {
   return !torrent_url.isEmpty();
 }
 
-QString RssArticle::getId() const {
-  return id;
-}
-
 QHash<QString, QVariant> RssArticle::toHash() const {
   QHash<QString, QVariant> item;
   item["title"] = title;
@@ -282,10 +278,6 @@ bool RssArticle::isValid() const {
   return is_valid;
 }
 
-QString RssArticle::getTitle() const{
-  return title;
-}
-
 QString RssArticle::getAuthor() const {
   return author;
 }
diff --git a/src/rss/rssarticle.h b/src/rss/rssarticle.h
index 78c903d41..6a5bdbc09 100644
--- a/src/rss/rssarticle.h
+++ b/src/rss/rssarticle.h
@@ -48,12 +48,12 @@ public:
              QDateTime _date, QString _author, bool _read);
   ~RssArticle();
   bool has_attachment() const;
-  QString getId() const;
+  inline QString getId() const { return id; }
   QHash<QString, QVariant> toHash() const;
   static RssArticle* fromHash(RssFeed* parent, const QHash<QString, QVariant> &h);
   RssFeed* getParent() const;
   bool isValid() const;
-  QString getTitle() const;
+  inline QString getTitle() const { return title; }
   QString getAuthor() const;
   QString getTorrentUrl() const;
   QString getLink() const;
diff --git a/src/rss/rssdownloadrule.cpp b/src/rss/rssdownloadrule.cpp
index 85973df81..39748cf05 100644
--- a/src/rss/rssdownloadrule.cpp
+++ b/src/rss/rssdownloadrule.cpp
@@ -34,6 +34,8 @@
 #include "rssdownloadrule.h"
 #include "preferences.h"
 #include "qinisettings.h"
+#include "rssfeed.h"
+#include "rssarticle.h"
 
 RssDownloadRule::RssDownloadRule()
 {
@@ -123,3 +125,13 @@ void RssDownloadRule::setSavePath(const QString &save_path)
   else
     m_savePath = QString();
 }
+
+QStringList RssDownloadRule::findMatchingArticles(const RssFeed *feed) const
+{
+  QStringList ret;
+  foreach(const RssArticle *art, feed->values()) {
+    if(matches(art->getTitle()))
+      ret << art->getTitle();
+  }
+  return ret;
+}
diff --git a/src/rss/rssdownloadrule.h b/src/rss/rssdownloadrule.h
index 3dab0116f..c9ac46f05 100644
--- a/src/rss/rssdownloadrule.h
+++ b/src/rss/rssdownloadrule.h
@@ -34,6 +34,8 @@
 #include <QStringList>
 #include <QVariantHash>
 
+class RssFeed;
+
 class RssDownloadRule
 {
 
@@ -58,6 +60,7 @@ public:
   inline bool isValid() const { return !m_name.isEmpty(); }
   inline QString mustContain() const { return m_mustContain.join(" "); }
   inline QString mustNotContain() const { return m_mustNotContain.join(" "); }
+  QStringList findMatchingArticles(const RssFeed* feed) const;
   // Operators
   bool operator==(const RssDownloadRule &other);
 
diff --git a/src/rss/rssdownloadrulelist.cpp b/src/rss/rssdownloadrulelist.cpp
index 78919ae74..f50638c7f 100644
--- a/src/rss/rssdownloadrulelist.cpp
+++ b/src/rss/rssdownloadrulelist.cpp
@@ -33,6 +33,7 @@
 #include <QDebug>
 
 #include "rssdownloadrulelist.h"
+#include "rsssettings.h"
 #include "qinisettings.h"
 
 RssDownloadRuleList* RssDownloadRuleList::m_instance = 0;
@@ -56,6 +57,7 @@ void RssDownloadRuleList::drop()
 
 RssDownloadRule RssDownloadRuleList::findMatchingRule(const QString &feed_url, const QString &article_title) const
 {
+  Q_ASSERT(RssSettings::isRssDownloadingEnabled());
   QStringList rule_names = feedRules(feed_url);
   foreach(const QString &rule_name, rule_names) {
     RssDownloadRule rule = m_rules[rule_name];
@@ -127,6 +129,7 @@ void RssDownloadRuleList::loadRulesFromVariantHash(const QVariantHash &h)
 
 void RssDownloadRuleList::saveRule(const RssDownloadRule &rule)
 {
+  qDebug() << Q_FUNC_INFO << rule.name();
   Q_ASSERT(rule.isValid());
   if(m_rules.contains(rule.name())) {
     removeRule(rule.name());
diff --git a/src/rss/rssfeed.cpp b/src/rss/rssfeed.cpp
index 86c21db0b..843836fa7 100644
--- a/src/rss/rssfeed.cpp
+++ b/src/rss/rssfeed.cpp
@@ -290,21 +290,23 @@ short RssFeed::readDoc(QIODevice* device) {
   resizeList();
 
   // RSS Feed Downloader
-  foreach(RssArticle* item, values()) {
-    if(item->isRead()) continue;
-    QString torrent_url;
-    if(item->has_attachment())
-      torrent_url = item->getTorrentUrl();
-    else
-      torrent_url = item->getLink();
-    // Check if the item should be automatically downloaded
-    const RssDownloadRule matching_rule = RssDownloadRuleList::instance()->findMatchingRule(url, item->getTitle());
-    if(matching_rule.isValid()) {
-      // Download the torrent
-      BTSession->addConsoleMessage(tr("Automatically downloading %1 torrent from %2 RSS feed...").arg(item->getTitle()).arg(getName()));
-      BTSession->downloadUrlAndSkipDialog(torrent_url, matching_rule.savePath(), matching_rule.label());
-      // Item was downloaded, consider it as Read
-      item->setRead();
+  if(RssSettings::isRssDownloadingEnabled()) {
+    foreach(RssArticle* item, values()) {
+      if(item->isRead()) continue;
+      QString torrent_url;
+      if(item->has_attachment())
+        torrent_url = item->getTorrentUrl();
+      else
+        torrent_url = item->getLink();
+      // Check if the item should be automatically downloaded
+      const RssDownloadRule matching_rule = RssDownloadRuleList::instance()->findMatchingRule(url, item->getTitle());
+      if(matching_rule.isValid()) {
+        // Download the torrent
+        BTSession->addConsoleMessage(tr("Automatically downloading %1 torrent from %2 RSS feed...").arg(item->getTitle()).arg(getName()));
+        BTSession->downloadUrlAndSkipDialog(torrent_url, matching_rule.savePath(), matching_rule.label());
+        // Item was downloaded, consider it as Read
+        item->setRead();
+      }
     }
   }
   return 0;
diff --git a/src/rss/rssfolder.cpp b/src/rss/rssfolder.cpp
index 11ab61387..9c163009c 100644
--- a/src/rss/rssfolder.cpp
+++ b/src/rss/rssfolder.cpp
@@ -256,16 +256,27 @@ QList<RssFeed*> RssFolder::getAllFeeds() const {
   QList<RssFeed*> streams;
   foreach(RssFile *item, this->values()) {
     if(item->getType() == RssFile::FEED) {
-      streams << ((RssFeed*)item);
+      streams << static_cast<RssFeed*>(item);
     } else {
-      foreach(RssFeed* stream, ((RssFolder*)item)->getAllFeeds()) {
-        streams << stream;
-      }
+      streams << static_cast<RssFolder*>(item)->getAllFeeds();
     }
   }
   return streams;
 }
 
+QHash<QString, RssFeed*> RssFolder::getAllFeedsAsHash() const {
+  QHash<QString, RssFeed*> ret;
+  foreach(RssFile *item, this->values()) {
+    if(item->getType() == RssFile::FEED) {
+      RssFeed* feed = static_cast<RssFeed*>(item);
+      ret[feed->getUrl()] = feed;
+    } else {
+      ret.unite(static_cast<RssFolder*>(item)->getAllFeedsAsHash());
+    }
+  }
+  return ret;
+}
+
 void RssFolder::addFile(RssFile * item) {
   if(item->getType() == RssFile::FEED) {
     Q_ASSERT(!this->contains(((RssFeed*)item)->getUrl()));
diff --git a/src/rss/rssfolder.h b/src/rss/rssfolder.h
index 825e24e77..9f09361a3 100644
--- a/src/rss/rssfolder.h
+++ b/src/rss/rssfolder.h
@@ -57,6 +57,7 @@ public:
   unsigned int getNbFeeds() const;
   QList<RssFile*> getContent() const;
   QList<RssFeed*> getAllFeeds() const;
+  QHash<QString, RssFeed*> getAllFeedsAsHash() const;
   QString getName() const;
   QString getID() const;
   bool hasChild(QString ID);
diff --git a/src/rss/rssmanager.cpp b/src/rss/rssmanager.cpp
index 8e8049b5e..647b4038a 100644
--- a/src/rss/rssmanager.cpp
+++ b/src/rss/rssmanager.cpp
@@ -35,7 +35,9 @@
 #include "rssarticle.h"
 #include "rssdownloadrulelist.h"
 
-RssManager::RssManager(QBtSession *BTSession): RssFolder(0, this, BTSession, QString::null) {
+RssManager* RssManager::m_instance = 0;
+
+RssManager::RssManager(): RssFolder(0, this, QBtSession::instance(), QString::null) {
   loadStreamList();
   connect(&newsRefresher, SIGNAL(timeout()), this, SLOT(refreshAll()));
   refreshInterval = RssSettings::getRSSRefreshInterval();
@@ -137,3 +139,16 @@ QList<RssArticle*> RssManager::sortNewsList(const QList<RssArticle*>& news_list)
   }
   return new_list;
 }
+
+RssManager * RssManager::instance()
+{
+  if(!m_instance)
+    m_instance = new RssManager;
+  return m_instance;
+}
+
+void RssManager::drop()
+{
+  if(m_instance)
+    delete m_instance;
+}
diff --git a/src/rss/rssmanager.h b/src/rss/rssmanager.h
index 490fa3e13..f457b6c2d 100644
--- a/src/rss/rssmanager.h
+++ b/src/rss/rssmanager.h
@@ -37,9 +37,13 @@
 
 class RssManager: public RssFolder {
   Q_OBJECT
+private:
+  explicit RssManager();
+  static RssManager* m_instance;
 
 public:
-  RssManager(QBtSession *BTSession);
+  static RssManager* instance();
+  static void drop();
   ~RssManager();
   static void insertSortElem(QList<RssArticle*> &list, RssArticle *item);
   static QList<RssArticle*> sortNewsList(const QList<RssArticle*>& news_list);