Very initial implementation of feeds auto-update.

src/core/feedsmodel.cpp

@@ -287,7 +287,7 @@ bool FeedsModel::addStandardFeed(FeedsModelStandardFeed *feed,
   query_add_feed.bindValue(":username", feed->username());
   query_add_feed.bindValue(":password", feed->password());
   query_add_feed.bindValue(":update_type", (int) feed->autoUpdateType());
-  query_add_feed.bindValue(":update_interval", feed->autoUpdateInterval());
+  query_add_feed.bindValue(":update_interval", feed->autoUpdateInitialInterval());
   query_add_feed.bindValue(":type", (int) FeedsModelCategory::Standard);
 
   if (!query_add_feed.exec()) {
@@ -338,7 +338,7 @@ bool FeedsModel::editStandardFeed(FeedsModelStandardFeed *original_feed,
   query_update_feed.bindValue(":username", new_feed->username());
   query_update_feed.bindValue(":password", new_feed->password());
   query_update_feed.bindValue(":update_type", (int) new_feed->autoUpdateType());
-  query_update_feed.bindValue(":update_interval", new_feed->autoUpdateInterval());
+  query_update_feed.bindValue(":update_interval", new_feed->autoUpdateInitialInterval());
   query_update_feed.bindValue(":type", new_feed->type());
   query_update_feed.bindValue(":id", original_feed->id());
 
@@ -358,7 +358,7 @@ bool FeedsModel::editStandardFeed(FeedsModelStandardFeed *original_feed,
   original_feed->setUsername(new_feed->username());
   original_feed->setPassword(new_feed->password());
   original_feed->setAutoUpdateType(new_feed->autoUpdateType());
-  original_feed->setAutoUpdateInterval(new_feed->autoUpdateInterval());
+  original_feed->setAutoUpdateInitialInterval(new_feed->autoUpdateInitialInterval());
   original_feed->setType(new_feed->type());
 
   if (original_parent != new_parent) {
@@ -389,6 +389,47 @@ bool FeedsModel::editStandardFeed(FeedsModelStandardFeed *original_feed,
   return true;
 }
 
+QList<FeedsModelFeed*> FeedsModel::feedsForScheduledUpdate(int global_auto_update_minutes_remaining) {
+  QList<FeedsModelFeed*> feeds_for_update;
+
+  foreach (FeedsModelFeed *feed, allFeeds()) {
+    FeedsModelStandardFeed *std_feed = static_cast<FeedsModelStandardFeed*>(feed);
+
+    switch (std_feed->autoUpdateType()) {
+      case FeedsModelStandardFeed::DontAutoUpdate:
+        // Do not auto-update this feed ever.
+        continue;
+
+      case FeedsModelStandardFeed::DefaultAutoUpdate:
+        if (global_auto_update_minutes_remaining == 0) {
+          feeds_for_update.append(feed);
+        }
+
+        break;
+
+      case FeedsModelStandardFeed::SpecificAutoUpdate:
+      default:
+        int remaining_interval = std_feed->autoUpdateRemainingInterval();
+
+        if (--remaining_interval <= 0) {
+          // Interval of this feed passed, include this feed in the output list
+          // and reset the interval.
+          feeds_for_update.append(feed);
+          std_feed->setAutoUpdateRemainingInterval(std_feed->autoUpdateInitialInterval());
+        }
+        else {
+          // Interval did not pass, set new decremented interval and do NOT
+          // include this feed in the output list.
+          std_feed->setAutoUpdateRemainingInterval(remaining_interval);
+        }
+
+        break;
+    }
+  }
+
+  return feeds_for_update;
+}
+
 QList<Message> FeedsModel::messagesForFeeds(const QList<FeedsModelFeed*> &feeds) {
   QList<Message> messages;
 

src/core/feedsmodel.h

@@ -66,6 +66,10 @@ class FeedsModel : public QAbstractItemModel {
     bool editStandardFeed(FeedsModelStandardFeed *original_feed,
                           FeedsModelStandardFeed *new_feed);
 
+    // Returns the list of updates which should be updated
+    // according to auto-update schedule.
+    QList<FeedsModelFeed*> feedsForScheduledUpdate(int global_auto_update_minutes_remaining);
+
     // Returns (undeleted) messages for given feeds.
     QList<Message> messagesForFeeds(const QList<FeedsModelFeed*> &feeds);
 

src/core/feedsmodelstandardfeed.cpp

@@ -17,7 +17,7 @@
 FeedsModelStandardFeed::FeedsModelStandardFeed(FeedsModelRootItem *parent_item)
   : FeedsModelFeed(parent_item),
     m_autoUpdateType(DontAutoUpdate),
-    m_autoUpdateInterval(DEFAULT_AUTO_UPDATE_INTERVAL) {
+    m_autoUpdateInitialInterval(DEFAULT_AUTO_UPDATE_INTERVAL) {
 }
 
 FeedsModelStandardFeed::~FeedsModelStandardFeed() {
@@ -38,7 +38,7 @@ FeedsModelStandardFeed *FeedsModelStandardFeed::loadFromRecord(const QSqlRecord
   feed->setUsername(record.value(FDS_DB_USERNAME_INDEX).toString());
   feed->setPassword(record.value(FDS_DB_PASSWORD_INDEX).toString());
   feed->setAutoUpdateType(static_cast<FeedsModelStandardFeed::AutoUpdateType>(record.value(FDS_DB_UPDATE_TYPE_INDEX).toInt()));
-  feed->setAutoUpdateInterval(record.value(FDS_DB_UPDATE_INTERVAL_INDEX).toInt());
+  feed->setAutoUpdateInitialInterval(record.value(FDS_DB_UPDATE_INTERVAL_INDEX).toInt());
   feed->updateCounts();
 
   return feed;
@@ -284,3 +284,7 @@ void FeedsModelStandardFeed::updateMessages(const QList<Message> &messages) {
     qDebug("Transaction commit for message downloader failed.");
   }
 }
+
+
+
+

src/core/feedsmodelstandardfeed.h

@@ -16,7 +16,7 @@ class FeedsModelStandardFeed : public FeedsModelFeed {
   public:
     enum AutoUpdateType {
       DontAutoUpdate = 0,
-      DefaultAutpUpdate = 1,
+      DefaultAutoUpdate = 1,
       SpecificAutoUpdate = 2
     };
 
@@ -51,12 +51,15 @@ class FeedsModelStandardFeed : public FeedsModelFeed {
       m_url = url;
     }
 
-    inline int autoUpdateInterval() const {
+    inline int autoUpdateInitialInterval() const {
-      return m_autoUpdateInterval;
+      return m_autoUpdateInitialInterval;
     }
 
-    inline void setAutoUpdateInterval(int auto_update_interval) {
+    inline void setAutoUpdateInitialInterval(int auto_update_interval) {
-      m_autoUpdateInterval = auto_update_interval;
+      // If new initial auto-update interval is set, then
+      // we should reset time that remains to the next auto-update.
+      m_autoUpdateInitialInterval = auto_update_interval;
+      m_autoUpdateRemainingInterval = auto_update_interval;
     }
 
     inline AutoUpdateType autoUpdateType() const {
@@ -67,6 +70,14 @@ class FeedsModelStandardFeed : public FeedsModelFeed {
       m_autoUpdateType = autoUpdateType;
     }
 
+    inline int autoUpdateRemainingInterval() const {
+      return m_autoUpdateRemainingInterval;
+    }
+
+    inline void setAutoUpdateRemainingInterval(int autoUpdateRemainingInterval) {
+      m_autoUpdateRemainingInterval = autoUpdateRemainingInterval;
+    }
+
     // Loads standard feed object from given SQL record.
     static FeedsModelStandardFeed *loadFromRecord(const QSqlRecord &record);
 
@@ -81,7 +92,8 @@ class FeedsModelStandardFeed : public FeedsModelFeed {
     // NOTE: Number -1 means "do not auto-update", number
     // 0 means "auto-update with global interval" and number
     // > 0 means "auto-update with specific interval".
-    int m_autoUpdateInterval;
+    int m_autoUpdateInitialInterval;
+    int m_autoUpdateRemainingInterval;
 
     QString m_encoding;
     QString m_url;

src/gui/feedmessageviewer.cpp

@@ -27,7 +27,6 @@
 #include <QThread>
 #include <QProgressBar>
 #include <QStatusBar>
-#include <QTimer>
 
 
 FeedMessageViewer::FeedMessageViewer(QWidget *parent)
@@ -37,23 +36,13 @@ FeedMessageViewer::FeedMessageViewer(QWidget *parent)
     m_feedsView(new FeedsView(this)),
     m_messagesBrowser(new WebBrowser(this)),
     m_feedDownloaderThread(new QThread()),
-    m_feedDownloader(new FeedDownloader()),
+    m_feedDownloader(new FeedDownloader()) {
-    m_autoUpdateTimer(new QTimer(this))  {
   initialize();
   initializeViews();
   createConnections();
 
   // Start the feed downloader thread.
   m_feedDownloaderThread->start();
-
-  // Start the auto-update timer.
-  // TODO: co kdyz update bude trvat dele nez minutu?
-  // asi udelat metodu pro update v teto tride
-  // ta obali update v m_feedsView
-  // a nastavit jako single shot -> true nejak nevim
-  m_autoUpdateTimer->setInterval(AUTO_UPDATE_INTERVAL);
-  m_autoUpdateTimer->setSingleShot(false);
-  m_autoUpdateTimer->start();
 }
 
 FeedMessageViewer::~FeedMessageViewer() {
@@ -100,7 +89,10 @@ void FeedMessageViewer::loadSize() {
                                                  default_msg_section_size).toInt());
 }
 
-void FeedMessageViewer::quitDownloader() {
+void FeedMessageViewer::quit() {
+  // Quit the feeds view (stops auto-update timer etc.).
+  m_feedsView->quit();
+
   qDebug("Quitting feed downloader thread.");
   m_feedDownloaderThread->quit();
 
@@ -141,10 +133,6 @@ void FeedMessageViewer::onFeedUpdatesFinished() {
 void FeedMessageViewer::createConnections() {
   FormMain *form_main = FormMain::instance();
 
-  // Timed actions.
-  connect(m_autoUpdateTimer, SIGNAL(timeout()),
-          m_feedsView, SLOT(updateScheduledFeeds()));
-
   // Message changers.
   connect(m_messagesView, SIGNAL(currentMessagesRemoved()),
           m_messagesBrowser, SLOT(clear()));

src/gui/feedmessageviewer.h

@@ -14,7 +14,6 @@ class FeedsModelFeed;
 class QToolBar;
 class QSplitter;
 class QProgressBar;
-class QTimer;
 
 class FeedMessageViewer : public TabContent {
     Q_OBJECT
@@ -40,8 +39,9 @@ class FeedMessageViewer : public TabContent {
     void saveSize();
     void loadSize();
 
-    // Destroys worker/feed downloader thread.
+    // Destroys worker/feed downloader thread and
-    void quitDownloader();
+    // stops any child widgets/workers.
+    void quit();
 
   protected slots:
     // Updates counts of messages for example in tray icon.
@@ -74,8 +74,6 @@ class FeedMessageViewer : public TabContent {
 
     QThread *m_feedDownloaderThread;
     FeedDownloader *m_feedDownloader;
-
-    QTimer *m_autoUpdateTimer;
 };
 
 #endif // FEEDMESSAGEVIEWER_H

src/gui/feedsview.cpp

@@ -20,24 +20,62 @@
 #include <QContextMenuEvent>
 #include <QPointer>
 #include <QPainter>
-#include <QReadWriteLock>
+#include <QTimer>
 
 
 FeedsView::FeedsView(QWidget *parent)
   : QTreeView(parent),
     m_contextMenuCategoriesFeeds(NULL),
-    m_contextMenuEmptySpace(NULL) {
+    m_contextMenuEmptySpace(NULL),
+    m_autoUpdateTimer(new QTimer(this)) {
+  // Allocate models.
   m_proxyModel = new FeedsProxyModel(this);
   m_sourceModel = m_proxyModel->sourceModel();
 
+  // Timed actions.
+  connect(m_autoUpdateTimer, SIGNAL(timeout()),
+          this, SLOT(executeNextAutoUpdate()));
+
   setModel(m_proxyModel);
   setupAppearance();
+
+  // Setup the timer.
+  updateAutoUpdateStatus();
 }
 
 FeedsView::~FeedsView() {
   qDebug("Destroying FeedsView instance.");
 }
 
+void FeedsView::quit() {
+  if (m_autoUpdateTimer->isActive()) {
+    m_autoUpdateTimer->stop();
+  }
+}
+
+void FeedsView::updateAutoUpdateStatus() {
+  // Update intervals.
+  m_globalAutoUpdateInitialInterval = Settings::instance()->value(APP_CFG_FEEDS, "auto_update_interval", DEFAULT_AUTO_UPDATE_INTERVAL).toInt();
+  m_globalAutoUpdateRemainingInterval = m_globalAutoUpdateInitialInterval;
+
+  // Start/stop the timer as needed.
+  if (Settings::instance()->value(APP_CFG_FEEDS, "auto_update_enabled", false).toBool()) {
+    if (!m_autoUpdateTimer->isActive()) {
+      m_autoUpdateTimer->setInterval(AUTO_UPDATE_INTERVAL);
+      m_autoUpdateTimer->start();
+
+      qDebug("Auto-update timer started with interval %d.", m_autoUpdateTimer->interval());
+    }
+  }
+  else {
+    if (m_autoUpdateTimer->isActive()) {
+      m_autoUpdateTimer->stop();
+
+      qDebug("Auto-update timer stopped.");
+    }
+  }
+}
+
 void FeedsView::setSortingEnabled(bool enable) {
   QTreeView::setSortingEnabled(enable);
   header()->setSortIndicatorShown(false);
@@ -102,20 +140,38 @@ void FeedsView::updateSelectedFeeds() {
   }
 }
 
-void FeedsView::updateScheduledFeeds() {
+void FeedsView::executeNextAutoUpdate() {
-  if (SystemFactory::instance()->applicationCloseLock()->tryLock()) {
+  if (!SystemFactory::instance()->applicationCloseLock()->tryLock() &&
-    // Update master lock obtained, select
+      SystemTrayIcon::isSystemTrayActivated()) {
-    // feeds which should be updated and
+    SystemTrayIcon::instance()->showMessage(tr("Cannot update scheduled items"),
-    // request their update.
+                                            tr("You cannot update scheduled items because another feed update is ongoing."),
-    // TODO: emit feedsUpdateRequested(selectedFeeds());
+                                            QSystemTrayIcon::Warning);
-    // tady vybrat feedy ktery se maj updatovat ted
+
+    // Cannot update, quit.
+    return;
+  }
+
+  // If this reaches less than zero, then feeds with global auto-update interval should
+  // be updated.
+  if (--m_globalAutoUpdateRemainingInterval < 0) {
+    // We should start next auto-update interval.
+    m_globalAutoUpdateRemainingInterval = m_globalAutoUpdateInitialInterval;
+  }
+
+  qDebug("Starting auto-update event, pass %d/%d.",
+         m_globalAutoUpdateRemainingInterval, m_globalAutoUpdateInitialInterval);
+
+  // Pass needed interval data and lets the model decide which feeds
+  // should be updated in this pass.
+  QList<FeedsModelFeed*> feeds_for_update = m_sourceModel->feedsForScheduledUpdate(m_globalAutoUpdateRemainingInterval);
+
+  if (feeds_for_update.isEmpty()) {
+    // No feeds are scheduled for update now, unlock the master lock.
+    SystemFactory::instance()->applicationCloseLock()->unlock();
   }
   else {
-    if (SystemTrayIcon::isSystemTrayActivated()) {
+    // Request update for given feeds.
-      SystemTrayIcon::instance()->showMessage(tr("Cannot update scheduled items"),
+    emit feedsUpdateRequested(feeds_for_update);
-                                              tr("You cannot update scheduled items because another feed update is ongoing."),
-                                              QSystemTrayIcon::Warning);
-    }
   }
 }
 

src/gui/feedsview.h

@@ -5,11 +5,13 @@
 
 #include "core/messagesmodel.h"
 #include "core/feedsmodel.h"
+#include "core/settings.h"
 
 
 class FeedsProxyModel;
 class FeedsModelFeed;
 class FeedsModelCategory;
+class QTimer;
 
 class FeedsView : public QTreeView {
     Q_OBJECT
@@ -27,6 +29,13 @@ class FeedsView : public QTreeView {
       return m_sourceModel;
     }
 
+    // Does necessary job before quitting this component.
+    void quit();
+
+    // Resets global auto-update intervals according to settings
+    // and starts/stop the timer as needed.
+    void updateAutoUpdateStatus();
+
     // Enables or disables sorting.
     void setSortingEnabled(bool enable);
     
@@ -44,7 +53,9 @@ class FeedsView : public QTreeView {
     // Feed updating.
     void updateAllFeeds();
     void updateSelectedFeeds();
-    void updateScheduledFeeds();
+
+    // Is executed when next auto-update round could be done.
+    void executeNextAutoUpdate();
 
     // Feed read/unread manipulators.
     void markSelectedFeedsReadStatus(int read);
@@ -130,6 +141,11 @@ class FeedsView : public QTreeView {
     QList<int> m_selectedFeeds;
     FeedsModel *m_sourceModel;
     FeedsProxyModel *m_proxyModel;
+
+    // Auto-update stuff.
+    QTimer *m_autoUpdateTimer;
+    int m_globalAutoUpdateInitialInterval;
+    int m_globalAutoUpdateRemainingInterval;
 };
 
 #endif // FEEDSVIEW_H

src/gui/formmain.cpp

@@ -176,19 +176,10 @@ void FormMain::onSaveState(QSessionManager &manager) {
 void FormMain::onAboutToQuit() {
   // Make sure that we obtain close lock
   // BEFORE even trying to quit the application.
-  if (SystemFactory::instance()->applicationCloseLock()->tryLock(CLOSE_LOCK_TIMEOUT)) {
+  bool locked_safely = SystemFactory::instance()->applicationCloseLock()->tryLock(CLOSE_LOCK_TIMEOUT);
-    // Application obtained permission to close
-    // in a safety way.
-    qDebug("Close lock obtained safely.");
-  }
-  else {
-    // Request for write lock timed-out. This means
-    // that some critical action can be processed right now.
-    qDebug("Close lock timed-out.");
-  }
 
   qDebug("Cleaning up resources and saving application state.");
-  m_ui->m_tabWidget->feedMessageViewer()->quitDownloader();
+  m_ui->m_tabWidget->feedMessageViewer()->quit();
 
   if (Settings::instance()->value(APP_CFG_MESSAGES, "clear_read_on_exit", false).toBool()) {
     m_ui->m_tabWidget->feedMessageViewer()->feedsView()->clearAllReadMessages();
@@ -196,6 +187,20 @@ void FormMain::onAboutToQuit() {
 
   DatabaseFactory::instance()->saveMemoryDatabase();
   saveSize();
+
+  if (locked_safely) {
+    // Application obtained permission to close
+    // in a safety way.
+    qDebug("Close lock was obtained safely.");
+
+    // We locked the lock to exit peacefully, unlock it to avoid warnings.
+    SystemFactory::instance()->applicationCloseLock()->unlock();
+  }
+  else {
+    // Request for write lock timed-out. This means
+    // that some critical action can be processed right now.
+    qDebug("Close lock timed-out.");
+  }
 }
 
 bool FormMain::event(QEvent *event) {

src/gui/formsettings.cpp

@@ -163,6 +163,7 @@ void FormSettings::saveFeedsMessages() {
   Settings::instance()->setValue(APP_CFG_FEEDS, "auto_update_enabled", m_ui->m_checkAutoUpdate->isChecked());
   Settings::instance()->setValue(APP_CFG_FEEDS, "auto_update_interval", m_ui->m_spinAutoUpdateInterval->value());
 
+  FormMain::instance()->tabWidget()->feedMessageViewer()->feedsView()->updateAutoUpdateStatus();
 }
 
 void FormSettings::displayProxyPassword(int state) {

src/gui/formstandardfeeddetails.cpp

@@ -136,7 +136,7 @@ void FormStandardFeedDetails::onAutoUpdateTypeChanged(int new_index) {
 
   switch (auto_update_type) {
     case FeedsModelStandardFeed::DontAutoUpdate:
-    case FeedsModelStandardFeed::DefaultAutpUpdate:
+    case FeedsModelStandardFeed::DefaultAutoUpdate:
       m_ui->m_spinAutoUpdateInterval->setEnabled(false);
       break;
 
@@ -198,7 +198,7 @@ void FormStandardFeedDetails::apply() {
   new_feed->setUsername(m_ui->m_txtUsername->lineEdit()->text());
   new_feed->setPassword(m_ui->m_txtPassword->lineEdit()->text());
   new_feed->setAutoUpdateType(static_cast<FeedsModelStandardFeed::AutoUpdateType>(m_ui->m_cmbAutoUpdateType->itemData(m_ui->m_cmbAutoUpdateType->currentIndex()).toInt()));
-  new_feed->setAutoUpdateInterval(m_ui->m_spinAutoUpdateInterval->value());
+  new_feed->setAutoUpdateInitialInterval(m_ui->m_spinAutoUpdateInterval->value());
   new_feed->setParent(parent);
 
   if (m_editableFeed == NULL) {
@@ -280,7 +280,7 @@ void FormStandardFeedDetails::setEditableFeed(FeedsModelStandardFeed *editable_f
   m_ui->m_txtPassword->lineEdit()->setText(editable_feed->password());
   m_ui->m_txtUrl->lineEdit()->setText(editable_feed->url());
   m_ui->m_cmbAutoUpdateType->setCurrentIndex(m_ui->m_cmbAutoUpdateType->findData(QVariant::fromValue((int) editable_feed->autoUpdateType())));
-  m_ui->m_spinAutoUpdateInterval->setValue(editable_feed->autoUpdateInterval());
+  m_ui->m_spinAutoUpdateInterval->setValue(editable_feed->autoUpdateInitialInterval());
 }
 
 void FormStandardFeedDetails::initialize() {
@@ -355,7 +355,7 @@ void FormStandardFeedDetails::initialize() {
   // Setup auto-update options.
   m_ui->m_spinAutoUpdateInterval->setValue(DEFAULT_AUTO_UPDATE_INTERVAL);
   m_ui->m_cmbAutoUpdateType->addItem(tr("Do not auto-update at all"), QVariant::fromValue((int) FeedsModelStandardFeed::DontAutoUpdate));
-  m_ui->m_cmbAutoUpdateType->addItem(tr("Auto-update using global interval"), QVariant::fromValue((int) FeedsModelStandardFeed::DefaultAutpUpdate));
+  m_ui->m_cmbAutoUpdateType->addItem(tr("Auto-update using global interval"), QVariant::fromValue((int) FeedsModelStandardFeed::DefaultAutoUpdate));
   m_ui->m_cmbAutoUpdateType->addItem(tr("Auto-update every"), QVariant::fromValue((int) FeedsModelStandardFeed::SpecificAutoUpdate));
 
   // Set tab order.