Expand correct node and set it as current after drag-drop action.

src/core/feedsmodel.cpp

@@ -97,7 +97,6 @@ bool FeedsModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int
   Q_UNUSED(row)
   Q_UNUSED(column)
 
-
   if (action == Qt::IgnoreAction) {
     return true;
   }
@@ -134,6 +133,8 @@ bool FeedsModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int
 
         feed_new->setParent(target_item);
         editFeed(actual_feed, feed_new);
+
+        emit requireItemValidationAfterDragDrop(indexForItem(actual_feed));
       }
       else if (dragged_item->kind() == FeedsModelRootItem::Category) {
         qDebug("Drag-drop action for category '%s' detected, editing the feed.", qPrintable(dragged_item->title()));
@@ -144,6 +145,8 @@ bool FeedsModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int
         category_new->clearChildren();
         category_new->setParent(target_item);
         editCategory(actual_category, category_new);
+
+        emit requireItemValidationAfterDragDrop(indexForItem(actual_category));
       }
     }
 
@@ -173,10 +176,6 @@ Qt::ItemFlags FeedsModel::flags(const QModelIndex &index) const {
     default:
       return base_flags | Qt::ItemIsDropEnabled;
   }
-
-
-  // TODO: Pokračovat tady: http://qt-project.org/doc/qt-4.8/model-view-programming.html#using-drag-and-drop-with-item-views
-  // neumožnit drag ani drop nad odpadkovým košem
 }
 
 QVariant FeedsModel::headerData(int section, Qt::Orientation orientation, int role) const {

src/core/feedsmodel.h

@@ -179,6 +179,9 @@ class FeedsModel : public QAbstractItemModel {
     void assembleCategories(CategoryAssignment categories);
     void assembleFeeds(FeedAssignment feeds);
 
+  signals:
+    void requireItemValidationAfterDragDrop(const QModelIndex &source_index);
+
   private:
     FeedsModelRootItem *m_rootItem;
     FeedsModelRecycleBin *m_recycleBin;

src/gui/feedsview.cpp

@@ -53,7 +53,8 @@ FeedsView::FeedsView(QWidget *parent)
   m_proxyModel = new FeedsProxyModel(this);
   m_sourceModel = m_proxyModel->sourceModel();
 
-  // Timed actions.
+  // Connections.
+  connect(m_sourceModel, SIGNAL(requireItemValidationAfterDragDrop(QModelIndex)), this, SLOT(validateItemAfterDragDrop(QModelIndex)));
   connect(m_autoUpdateTimer, SIGNAL(timeout()), this, SLOT(executeNextAutoUpdate()));
 
   setModel(m_proxyModel);
@@ -685,3 +686,12 @@ void FeedsView::contextMenuEvent(QContextMenuEvent *event) {
     m_contextMenuEmptySpace->exec(event->globalPos());
   }
 }
+
+void FeedsView::validateItemAfterDragDrop(const QModelIndex &source_index) {
+  QModelIndex mapped = m_proxyModel->mapFromSource(source_index);
+
+  if (mapped.isValid()) {
+    setExpanded(mapped, true);
+    setCurrentIndex(mapped);
+  }
+}

src/gui/feedsview.h

@@ -131,9 +131,7 @@ class FeedsView : public QTreeView {
     // Notifies other components about messages
     // counts.
     inline void notifyWithCounts() {
-      emit messageCountsChanged(m_sourceModel->countOfUnreadMessages(),
+      emit messageCountsChanged(m_sourceModel->countOfUnreadMessages(), m_sourceModel->countOfAllMessages(), m_sourceModel->hasAnyFeedNewMessages());
-                                m_sourceModel->countOfAllMessages(),
-                                m_sourceModel->hasAnyFeedNewMessages());
     }
 
     // Selects next/previous item (feed/category) in the list.
@@ -162,6 +160,9 @@ class FeedsView : public QTreeView {
     // Show custom context menu.
     void contextMenuEvent(QContextMenuEvent *event);
 
+  private slots:
+    void validateItemAfterDragDrop(const QModelIndex &source_index);
+
   signals:
     // Emitted if user/application requested updating of some feeds.
     void feedsUpdateRequested(const QList<FeedsModelFeed*> feeds);