Intensive work in category manipulations.

src/core/feedsmodel.cpp

@@ -133,23 +133,6 @@ int FeedsModel::rowCount(const QModelIndex &parent) const {
   return parent_item->childCount();
 }
 
-bool FeedsModel::addItem(FeedsModelRootItem *item,
-                         FeedsModelRootItem *parent) {
-  QModelIndex parent_index = indexForItem(parent);
-
-  beginInsertRows(parent_index, parent->childCount(), parent->childCount());
-
-  // Add item to hierarchy.
-  parent->appendChild(item);
-
-  // Add item to persistent storage.
-  item->addItself();
-
-  endInsertRows();
-
-  return true;
-}
-
 bool FeedsModel::editItem(const QModelIndex &index) {
   // TODO: pokračovat
   return true;
@@ -161,20 +144,84 @@ bool FeedsModel::removeItem(const QModelIndex &index) {
     FeedsModelRootItem *deleting_item = itemForIndex(index);
     FeedsModelRootItem *parent_item = itemForIndex(parent_index);
 
+    // Try to persistently remove the item.
     if (deleting_item->removeItself()) {
+      // Item was persistently removed.
+      // Remove it from the model.
       beginRemoveRows(parent_index, index.row(), index.row());
 
       if (parent_item->removeChild(deleting_item)) {
-        // Free deleted item from the memory
+        // Free deleted item (and its children) from the memory.
         delete deleting_item;
       }
 
       endRemoveRows();
-    }
 
-    return true;
+      return true;
+    }
   }
 
+  // Item was not removed successfully.
+  return false;
+}
+
+bool FeedsModel::addStandardCategory(FeedsModelStandardCategory *category,
+                                     FeedsModelRootItem *parent) {
+  // Get index of parent item (parent standard category).
+  QModelIndex parent_index = indexForItem(parent);
+
+  // Now, add category to persistent storage.
+  // Children are removed, remove this standard category too.
+  QSqlDatabase database = DatabaseFactory::instance()->connection(objectName(),
+                                                                  DatabaseFactory::FromSettings);
+  QSqlQuery query_add(database);
+
+  query_add.setForwardOnly(true);
+
+  // Remove all messages from this standard feed.
+  query_add.prepare("INSERT INTO Categories "
+                    "(parent_id, title, description, date_created, icon, type) "
+                    "VALUES (:parent_id, :title, :description, :date_created, :icon, :type);");
+  query_add.bindValue(":parent_id", parent->id());
+  query_add.bindValue(":title", category->title());
+  query_add.bindValue(":description", category->description());
+  query_add.bindValue(":date_created", category->creationDate().toMSecsSinceEpoch());
+  query_add.bindValue(":icon", IconFactory::toByteArray(category->icon()));
+  query_add.bindValue(":type", (int) FeedsModelCategory::Standard);
+
+  if (!query_add.exec()) {
+    // Query failed.
+    return false;
+  }
+
+  query_add.prepare("SELECT id FROM Categories WHERE date_created = :date_created;");
+  query_add.bindValue(":date_created", category->creationDate().toMSecsSinceEpoch());
+  if (query_add.exec() && query_add.next()) {
+    // New category was added, fetch is primary id
+    // from the database.
+    category->setId(query_add.value(0).toInt());
+  }
+  else {
+    // Something failed.
+    return false;
+  }
+
+  // Category was added to the persistent storage,
+  // so add it to the model.
+  beginInsertRows(parent_index, parent->childCount(), parent->childCount());
+
+  // Add category to parent's children list.
+  parent->appendChild(category);
+
+  // Everything is completed now.
+  endInsertRows();
+
+  return true;
+}
+
+bool FeedsModel::editStandardCategory(FeedsModelStandardCategory *original_category,
+                                      FeedsModelStandardCategory *new_category) {
+  // TODO: implementovat
   return false;
 }
 

src/core/feedsmodel.h

@@ -47,17 +47,22 @@ class FeedsModel : public QAbstractItemModel {
       return m_rootItem->countOfUnreadMessages();
     }
 
-    // Feed/category manipulators.
+    // Base manipulators.
-    bool addItem(FeedsModelRootItem *item,
-                 FeedsModelRootItem *parent);
     bool editItem(const QModelIndex &index);
     bool removeItem(const QModelIndex &index);
 
-    // TODO: addItself a removeItself z itemů
+    // Standard category manipulators.
-    // asi přesunout do modelu a pro každej typ feedů/kanalu
+    bool addStandardCategory(FeedsModelStandardCategory *category,
-    // napsat skupinu metod na přidavani/upravu/mazani
+                             FeedsModelRootItem *parent);
-    // Standard feed/category manipulators.
+    bool editStandardCategory(FeedsModelStandardCategory *original_category,
-    //bool addStandardCategory(FeedsModelCategory *category);
+                              FeedsModelStandardCategory *new_category);
+
+    // Standard feed manipulators.
+    /*
+    bool addStandardFeed(FeedsModelStandardFeed *feed,
+                         FeedsModelRootItem *parent);
+    bool removeStandardFeed(FeedsModelStandardFeed *feed);
+    */
 
     // Returns (undeleted) messages for given feeds.
     QList<Message> messagesForFeeds(const QList<FeedsModelFeed*> &feeds);

src/core/feedsmodelrootitem.h

@@ -57,10 +57,6 @@ class FeedsModelRootItem {
     virtual int countOfUnreadMessages() const;
     virtual int countOfAllMessages() const;
 
-    virtual bool addItself() {
-      return false;
-    }
-
     // This method is used to permanently
     // "remove" (or "unregister") this item.
     // This typically removes item and its
@@ -90,21 +86,6 @@ class FeedsModelRootItem {
       }
 
       return false;
-/*
-      parents << root;
-
-      while (!parents.isEmpty()) {
-        foreach (FeedsModelRootItem *root_child, parents.takeFirst()->childItems()) {
-          if (root_child == this) {
-            return true;
-          }
-          else if (root_child->kind() == FeedsModelRootItem::Category) {
-            parents << root_child;
-          }
-        }
-      }
-
-      return false;*/
     }
 
     // Removes all children from this item.

src/core/feedsmodelstandardcategory.cpp

@@ -91,40 +91,6 @@ QVariant FeedsModelStandardCategory::data(int column, int role) const {
   }
 }
 
-bool FeedsModelStandardCategory::addItself() {
-  // Children are removed, remove this standard category too.
-  QSqlDatabase database = DatabaseFactory::instance()->connection("FeedsModelStandardCategory",
-                                                                  DatabaseFactory::FromSettings);
-  QSqlQuery query_add(database);
-
-  query_add.setForwardOnly(true);
-
-  // Remove all messages from this standard feed.
-  query_add.prepare("INSERT INTO Categories "
-                    "(parent_id, title, description, date_created, icon, type) "
-                    "VALUES (:parent_id, :title, :description, :date_created, :icon, :type);");
-  query_add.bindValue(":parent_id", m_parentItem->id());
-  query_add.bindValue(":title", m_title);
-  query_add.bindValue(":description", m_description);
-  query_add.bindValue(":date_created", m_creationDate.toMSecsSinceEpoch());
-  query_add.bindValue(":icon", IconFactory::toByteArray(m_icon));
-  query_add.bindValue(":type", (int) m_type);
-
-  if (!query_add.exec()) {
-    return false;
-  }
-
-  query_add.prepare("SELECT id FROM Categories WHERE date_created = :date_created;");
-  query_add.bindValue(":date_created", m_creationDate.toMSecsSinceEpoch());
-  if (query_add.exec() && query_add.next()) {
-    setId(query_add.value(0).toInt());
-    return true;
-  }
-  else {
-    return false;
-  }
-}
-
 bool FeedsModelStandardCategory::removeItself() {
   bool result = true;
 

src/core/feedsmodelstandardcategory.h

@@ -21,9 +21,6 @@ class FeedsModelStandardCategory : public FeedsModelCategory {
     // Returns the actual data representation of standard category.
     QVariant data(int column, int role) const;
 
-    // Add itself to persistent database.
-    bool addItself();
-
     // Removes category and all its children from persistent
     // database.
     bool removeItself();

src/core/settings.cpp

@@ -86,8 +86,12 @@ QSettings::Status Settings::setupSettings() {
     // a upravovat dané vlastnosti
     // do FOrmSettings Webbrowser & proxy pridat tab "Advanced" a tam
     // naflakat vsecky zajimavy attributy
-    QWebSettings::globalSettings()->setAttribute(QWebSettings::DnsPrefetchEnabled, false);
+    QWebSettings::globalSettings()->setAttribute(QWebSettings::DnsPrefetchEnabled,
-    QWebSettings::globalSettings()->setAttribute(QWebSettings::AutoLoadImages, false);
+                                                 true);
+    QWebSettings::globalSettings()->setAttribute(QWebSettings::AutoLoadImages,
+                                                 false);
+    QWebSettings::globalSettings()->setAttribute(QWebSettings::JavascriptEnabled,
+                                                 false);
 
     qDebug("Initializing settings in '%s' (non-portable way).",
            qPrintable(QDir::toNativeSeparators(home_path_file)));

src/gui/feedsview.cpp

@@ -71,15 +71,12 @@ void FeedsView::clearSelectedFeeds() {
 
 void FeedsView::addNewCategory() {
   QPointer<FormCategoryDetails> form_pointer = new FormCategoryDetails(m_sourceModel, this);
-  FormCategoryDetailsAnswer answer = form_pointer.data()->exec(NULL);
 
-  if (answer.m_dialogCode == QDialog::Accepted) {
+  if (form_pointer.data()->exec(NULL) == QDialog::Accepted) {
-    // User submitted some new category and
+    // TODO: nova kategorie pridana
-    // it now resides in output_item pointer,
+  }
-    // parent_item contains parent_that user selected for
+  else {
-    // new category.
+    // TODO: nova kategorie nepridana
-
-    // TODO: Add new category to the model and to the database.
   }
 
   delete form_pointer.data();
@@ -92,6 +89,27 @@ void FeedsView::editSelectedItem() {
 
   if ((category = isCurrentIndexCategory()) != NULL) {
     // Category is selected.
+    switch (category->type()) {
+      case FeedsModelCategory::Standard: {
+        // User wants to edit standard category.
+        FeedsModelStandardCategory *std_category = static_cast<FeedsModelStandardCategory*>(category);
+
+        QPointer<FormCategoryDetails> form_pointer = new FormCategoryDetails(m_sourceModel, this);
+
+        if (form_pointer.data()->exec(std_category) == QDialog::Accepted) {
+          // TODO: kategorie upravena
+        }
+        else {
+          // TODO: kategorie neupravena
+        }
+
+        delete form_pointer.data();
+        break;
+      }
+
+      default:
+        break;
+    }
   }
   else if ((feed = isCurrentIndexFeed()) != NULL) {
     // Feed is selected.

src/gui/formcategorydetails.cpp

@@ -13,6 +13,7 @@
 #include <QTextEdit>
 #include <QDialogButtonBox>
 #include <QToolButton>
+#include <QPushButton>
 
 
 FormCategoryDetails::FormCategoryDetails(FeedsModel *model, QWidget *parent)
@@ -40,46 +41,45 @@ void FormCategoryDetails::createConnections() {
           this, SLOT(onTitleChanged(QString)));
 }
 
-void FormCategoryDetails::setEditableCategory(FeedsModelCategory *editable_category) {
+void FormCategoryDetails::setEditableCategory(FeedsModelStandardCategory *editable_category) {
   m_editableCategory = editable_category;
 
-  // TODO: Setup the dialog according to the category.
+  m_ui->m_cmbParentCategory->setCurrentIndex(m_ui->m_cmbParentCategory->findData(QVariant::fromValue((void*) editable_category->parent())));
-  // so remove this category from category combobox!!
   m_ui->m_txtTitle->lineEdit()->setText(editable_category->title());
   m_ui->m_txtDescription->lineEdit()->setText(editable_category->description());
   m_ui->m_btnIcon->setIcon(editable_category->icon());
 }
 
-FormCategoryDetailsAnswer FormCategoryDetails::exec(FeedsModelCategory *input_category) {
+int FormCategoryDetails::exec(FeedsModelStandardCategory *input_category) {
-  FormCategoryDetailsAnswer answer;
-
   if (input_category == NULL) {
     // User is adding new category.
     setWindowTitle(tr("Add new category"));
   }
   else {
+    // This item cannot have set itself as the parent.
+    m_ui->m_cmbParentCategory->removeItem(m_ui->m_cmbParentCategory->findData(QVariant::fromValue((void*) input_category)));
+
     // User is editing existing category.
     setWindowTitle(tr("Edit existing category"));
     setEditableCategory(input_category);
   }
 
-  answer.m_dialogCode = QDialog::exec();
+  return QDialog::exec();
-
-  return answer;
 }
 
-void FormCategoryDetails::apply() { 
+void FormCategoryDetails::apply() {
+  FeedsModelRootItem *parent = static_cast<FeedsModelRootItem*>(m_ui->m_cmbParentCategory->itemData(m_ui->m_cmbParentCategory->currentIndex()).value<void*>());
+  FeedsModelStandardCategory *new_category = new FeedsModelStandardCategory();
+
+  new_category->setTitle(m_ui->m_txtTitle->lineEdit()->text());
+  new_category->setCreationDate(QDateTime::currentDateTime());
+  new_category->setDescription(m_ui->m_txtDescription->lineEdit()->text());
+  new_category->setIcon(m_ui->m_btnIcon->icon());
+  new_category->setParent(parent);
+
   if (m_editableCategory == NULL) {
     // Add the category.
-    FeedsModelRootItem *parent = static_cast<FeedsModelRootItem*>(m_ui->m_cmbParentCategory->itemData(m_ui->m_cmbParentCategory->currentIndex()).value<void*>());
+    if (m_feedsModel->addStandardCategory(new_category, parent)) {
-    FeedsModelStandardCategory *new_category = new FeedsModelStandardCategory();
-
-    new_category->setTitle(m_ui->m_txtTitle->lineEdit()->text());
-    new_category->setCreationDate(QDateTime::currentDateTime());
-    new_category->setDescription(m_ui->m_txtDescription->lineEdit()->text());
-    new_category->setIcon(m_ui->m_btnIcon->icon());
-
-    if (m_feedsModel->addItem(new_category, parent)) {
       accept();
     }
     else {
@@ -87,15 +87,23 @@ void FormCategoryDetails::apply() {
     }
   }
   else {
-    // edit category
+    // TODO: edit category
+    if (m_feedsModel->editStandardCategory(m_editableCategory, new_category)) {
+      accept();
+    }
+    else {
+      // TODO: hlasit chybu
+    }
   }
 }
 
 void FormCategoryDetails::onTitleChanged(const QString &new_title){
   if (new_title.size() >= MIN_CATEGORY_NAME_LENGTH) {
+    m_ui->m_buttonBox->button(QDialogButtonBox::Ok)->setEnabled(true);
     m_ui->m_txtTitle->setStatus(LineEditWithStatus::Ok, tr("This category name is ok."));
   }
   else {
+    m_ui->m_buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
     m_ui->m_txtTitle->setStatus(LineEditWithStatus::Error, tr("This category name is too short."));
   }
 }
@@ -107,6 +115,8 @@ void FormCategoryDetails::initialize() {
   // Set flags and attributes.
   setWindowFlags(Qt::MSWindowsFixedSizeDialogHint | Qt::Dialog);
   setWindowIcon(IconThemeFactory::instance()->fromTheme("document-new"));
+
+  m_ui->m_buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
 }
 
 void FormCategoryDetails::loadCategories(const QList<FeedsModelCategory *> categories,

src/gui/formcategorydetails.h

@@ -11,15 +11,10 @@ namespace Ui {
 }
 
 class FeedsModelCategory;
+class FeedsModelStandardCategory;
 class FeedsModel;
 class FeedsModelRootItem;
 
-class FormCategoryDetailsAnswer {
-  public:
-    int m_dialogCode;
-    FeedsModelCategory *m_outputCategory;
-    FeedsModelRootItem *m_outputParentItem;
-};
 
 class FormCategoryDetails : public QDialog {
     Q_OBJECT
@@ -44,7 +39,7 @@ class FormCategoryDetails : public QDialog {
     // to the database.
     // NOTE: Newly EDITED category IS COPY of its original.
     // SO NO ORIGINAL MODEL DATA ARE EDITED OR CHANGED.
-    FormCategoryDetailsAnswer exec(FeedsModelCategory *input_category);
+    int exec(FeedsModelStandardCategory *input_category);
 
   protected slots:
     void apply();
@@ -55,7 +50,7 @@ class FormCategoryDetails : public QDialog {
   protected:
     // Sets the category which will be edited.
     // NOTE: This is used for editing categories.
-    void setEditableCategory(FeedsModelCategory *editable_category);
+    void setEditableCategory(FeedsModelStandardCategory *editable_category);
 
     // Initializes the dialog.
     void initialize();
@@ -66,7 +61,7 @@ class FormCategoryDetails : public QDialog {
 
   private:
     Ui::FormCategoryDetails *m_ui;
-    FeedsModelCategory *m_editableCategory;
+    FeedsModelStandardCategory *m_editableCategory;
     FeedsModel *m_feedsModel;
 };