Saving/loading of expand states is partially working now.

src/core/feedsmodel.cpp

@@ -578,13 +578,21 @@ QList<Feed*> FeedsModel::feedsForItem(RootItem *root) {
 }
 
 QList<Category*> FeedsModel::categoriesForItem(RootItem *root) {
-  QList<RootItem*> children = root->getRecursiveChildren();
   QList<Category*> categories;
+  QList<RootItem*> parents;
 
-  foreach (RootItem *child, children) {
-    if (child->kind() == RootItemKind::Category) {
-      categories.append(child->toCategory());
+  parents.append(root);
+
+  while (!parents.isEmpty()) {
+    RootItem *item = parents.takeFirst();
+
+    if (item->kind() == RootItemKind::Category) {
+      // This item is category, add it to the output list and
+      // scan its children.
+      categories.append( item->toCategory());
     }
+
+    parents.append(item->childItems());
   }
 
   return categories;

src/core/rootitem.cpp

@@ -91,6 +91,7 @@ QList<RootItem*> RootItem::getRecursiveChildren() {
     // Iterate all nested categories.
     while (!traversable_items.isEmpty()) {
       RootItem *active_item = traversable_items.takeFirst();
+      children.append(active_item);
 
       foreach (RootItem *child, active_item->childItems()) {
         if (child->childCount() == 0) {

src/core/rootitem.h

@@ -28,10 +28,11 @@ class Feed;
 namespace RootItemKind {
   // Describes the kind of the item.
   enum Kind {
-    Root     = 1001,
-    Bin      = 1002,
-    Feed     = 1003,
-    Category = 1004
+    Root        = 1001,
+    Bin         = 1002,
+    Feed        = 1003,
+    Category    = 1004,
+    ServiceRoot = 1005
   };
 }
 

src/gui/feedsview.cpp

@@ -109,27 +109,29 @@ Feed *FeedsView::selectedFeed() const {
 void FeedsView::saveExpandedStates() {
   Settings *settings = qApp->settings();
 
-  // TODO: doědlat
-
   // Iterate all categories and save their expand statuses.
-/*
-  foreach (Category *category, sourceModel()->allCategories().values()) {
+  foreach (Category *category, sourceModel()->allCategories()) {
+    QString setting_name = QString::number(qHash(category->title())) + QL1S("-") + QString::number(category->id());
+
     settings->setValue(GROUP(Categories),
-                       QString::number(category->id()),
+                       setting_name,
                        isExpanded(model()->mapFromSource(sourceModel()->indexForItem(category))));
-  }*/
+  }
 }
 
 void FeedsView::loadExpandedStates() {
   Settings *settings = qApp->settings();
 
-  // TODO: doědlat
+  // TODO: nastavit všechny service rooty automaticky na expanded
+  // toto obnáší vytvoření metody sourceModel()->serviceRoots()
 
   // Iterate all categories and save their expand statuses.
-  /*foreach (Category *category, sourceModel()->allCategories().values()) {
+  foreach (Category *category, sourceModel()->allCategories()) {
+    QString setting_name = QString::number(qHash(category->title())) + QL1S("-") + QString::number(category->id());
+
     setExpanded(model()->mapFromSource(sourceModel()->indexForItem(category)),
-                settings->value(GROUP(Categories), QString::number(category->id()), true).toBool());
-  }*/
+                settings->value(GROUP(Categories), setting_name, true).toBool());
+  }
 }
 
 void FeedsView::invalidateReadFeedsFilter(bool set_new_value, bool show_unread_only) {

src/services/abstract/serviceroot.cpp

@@ -21,6 +21,7 @@
 
 
 ServiceRoot::ServiceRoot(FeedsModel *feeds_model, RootItem *parent) : RootItem(parent), m_feedsModel(feeds_model) {
+  m_kind = RootItemKind::ServiceRoot;
 }
 
 ServiceRoot::~ServiceRoot() {