SOme export shit.

src/core/feedsmodel.cpp

@@ -28,6 +28,11 @@
 #include <QSqlQuery>
 #include <QSqlRecord>
 #include <QPair>
+#include <QDomDocument>
+#include <QDomElement>
+#include <QDomAttr>
+#include <QStack>
+
 
 #include <algorithm>
 
@@ -140,8 +145,36 @@ int FeedsModel::rowCount(const QModelIndex &parent) const {
 }
 
 bool FeedsModel::exportToFile(FeedsModel::ExternalFeedsFileType type, QByteArray &result) {
-  // TODO: POkračovat tady.
-  return false;
+  switch (type) {
+    case OPML20:
+      return exportToOMPL20(result);
+
+    default:
+      return false;
+  }
+}
+
+bool FeedsModel::exportToOMPL20(QByteArray &result) {
+  QDomDocument opml_document;
+  QStack<FeedsModelRootItem*> items_to_process; items_to_process.push(m_rootItem);
+
+  // Adde OPML 2.0 metadata.
+  opml_document.appendChild(opml_document.createElement("opml"));
+  opml_document.documentElement().setAttribute("version", "2.0");
+
+  QDomElement elem_opml_title = opml_document.createElement("title");
+  QDomText text_opml_title = opml_document.createTextNode(QString(APP_NAME) + tr(" feeds"));
+  elem_opml_title.appendChild(text_opml_title);
+  opml_document.documentElement().appendChild(elem_opml_title);
+
+  // Process all unprocessed nodes.
+  /*while (!items_to_process.isEmpty()) {
+
+  }*/
+
+
+  result = opml_document.toByteArray(2);
+  return true;
 }
 
 bool FeedsModel::removeItem(const QModelIndex &index) { 

src/core/feedsmodel.h

@@ -40,7 +40,7 @@ class FeedsModel : public QAbstractItemModel {
 
   public:
     enum ExternalFeedsFileType {
-      OMPL20
+      OPML20 = 0
     };
 
     // Constructors and destructors.
@@ -75,6 +75,10 @@ class FeedsModel : public QAbstractItemModel {
     // Import/export.
     bool exportToFile(ExternalFeedsFileType type, QByteArray &result);
 
+    // Exports to OPML 2.0
+    // NOTE: http://dev.opml.org/spec2.html
+    bool exportToOMPL20(QByteArray &result);
+
     // Removes item with given index.
     bool removeItem(const QModelIndex &index);
 

src/gui/formmain.cpp

@@ -41,6 +41,8 @@
 #include <QDesktopWidget>
 #include <QReadWriteLock>
 #include <QTimer>
+#include <QFileDialog>
+#include <QTextStream>
 
 
 FormMain::FormMain(QWidget *parent, Qt::WindowFlags f)
@@ -368,18 +370,16 @@ void FormMain::saveSize() {
 
 void FormMain::createConnections() {
   // Status bar connections.
-  connect(m_statusBar->fullscreenSwitcher(), SIGNAL(toggled(bool)),
-          m_ui->m_actionFullscreen, SLOT(setChecked(bool)));
-  connect(m_ui->m_actionFullscreen, SIGNAL(toggled(bool)),
-          m_statusBar->fullscreenSwitcher(), SLOT(setChecked(bool)));
+  connect(m_statusBar->fullscreenSwitcher(), SIGNAL(toggled(bool)), m_ui->m_actionFullscreen, SLOT(setChecked(bool)));
+  connect(m_ui->m_actionFullscreen, SIGNAL(toggled(bool)), m_statusBar->fullscreenSwitcher(), SLOT(setChecked(bool)));
 
   // Core connections.
-  connect(qApp, SIGNAL(commitDataRequest(QSessionManager&)),
-          this, SLOT(onCommitData(QSessionManager&)));
-  connect(qApp, SIGNAL(saveStateRequest(QSessionManager&)),
-          this, SLOT(onSaveState(QSessionManager&)));
+  connect(qApp, SIGNAL(commitDataRequest(QSessionManager&)), this, SLOT(onCommitData(QSessionManager&)));
+  connect(qApp, SIGNAL(saveStateRequest(QSessionManager&)), this, SLOT(onSaveState(QSessionManager&)));
 
   // Menu "File" connections.
+  connect(m_ui->m_actionExportFeeds, SIGNAL(triggered()), this, SLOT(exportFeeds()));
+  connect(m_ui->m_actionImportFeeds, SIGNAL(triggered()), this, SLOT(importFeeds()));
   connect(m_ui->m_actionQuit, SIGNAL(triggered()), this, SLOT(quit()));
 
   // Menu "View" connections.
@@ -436,6 +436,52 @@ void FormMain::loadWebBrowserMenu(int index) {
   m_ui->m_actionCloseCurrentTab->setEnabled(m_ui->m_tabWidget->tabBar()->tabType(index) == TabBar::Closable);
 }
 
+void FormMain::exportFeeds() {
+  QString filter_opml20 = tr("OPML 2.0 files (*.opml)");
+
+  QString filter;
+  QString selected_filter;
+
+  // Add more filters here.
+  filter += filter_opml20;
+
+  QString selected_file = QFileDialog::getSaveFileName(this, tr("Select file for feeds import"),
+                                                       QDir::homePath(), filter, &selected_filter);
+
+
+  if (!selected_file.isEmpty()) {
+    bool export_result;
+    QByteArray result_data;
+
+    if (selected_filter == filter_opml20) {
+      export_result = tabWidget()->feedMessageViewer()->feedsView()->sourceModel()->exportToFile(FeedsModel::OPML20,
+                                                                                                 result_data);
+    }
+
+    if (!export_result) {
+      qApp->showGuiMessage(tr("Export failed"),
+                           tr("Export of feeds failed, is target file writtable?"),
+                           QSystemTrayIcon::Critical);
+    }
+    else {
+      // Save exported data.
+      QFile output_file(selected_file);
+
+      if (output_file.open(QIODevice::Unbuffered | QIODevice::Truncate | QIODevice::WriteOnly)) {
+        QTextStream stream(&output_file);
+
+        stream << result_data;
+        output_file.flush();
+        output_file.close();
+      }
+    }
+  }
+}
+
+void FormMain::importFeeds() {
+
+}
+
 void FormMain::changeEvent(QEvent *event) {
   switch (event->type()) {
     case QEvent::WindowStateChange: {

src/gui/formmain.h

@@ -108,6 +108,8 @@ class FormMain : public QMainWindow {
     void loadWebBrowserMenu(int index);
 
     // Displays various dialogs.
+    void exportFeeds();
+    void importFeeds();
     void showSettings();
     void showAbout();
     void showUpdates();