Work on web engine. It SUXX. I will abandon internal web browser completely. User would have to rely on external web browser setup.

src/core/messagesproxymodel.cpp

@@ -70,13 +70,10 @@ QModelIndex MessagesProxyModel::getNextUnreadItemIndex(int default_row, int max_
 }
 
 bool MessagesProxyModel::lessThan(const QModelIndex &left, const QModelIndex &right) const {
-  // FIXME: V případě hodně položke je to pomalé.
-  // V případě, že do messagelistu budu zobrazovat řekněme
-  // více než 4 000 zpráv, tak tady vracet automaticky false,
-  // neprovádět skutečně porovnávání.
   Q_UNUSED(left)
   Q_UNUSED(right)
 
+  // NOTE: Porovnání se provádí již při dotazu v databázi, netřeba řešit zde.
   return false;
 }
 

src/main.cpp

@@ -36,6 +36,7 @@
 #include <QTranslator>
 #include <QDebug>
 #include <QTimer>
+#include <QWebEngineProfile>
 
 
 int main(int argc, char *argv[]) {
@@ -96,7 +97,7 @@ int main(int argc, char *argv[]) {
   main_window.setWindowTitle(APP_LONG_NAME);
 
   // Now is a good time to initialize dynamic keyboard shortcuts.
-  DynamicShortcuts::load(qApp->userActions());  
+  DynamicShortcuts::load(qApp->userActions());
 
   // Display main window.
   if (qApp->settings()->value(GROUP(GUI), SETTING(GUI::MainWindowStartsHidden)).toBool() && SystemTrayIcon::isSystemTrayActivated()) {
@@ -133,6 +134,8 @@ int main(int argc, char *argv[]) {
     QTimer::singleShot(STARTUP_UPDATE_DELAY, application.system(), SLOT(checkForUpdatesOnStartup()));
   }
 
+  QObject::connect(QWebEngineProfile::defaultProfile(), SIGNAL(downloadRequested(QWebEngineDownloadItem*)),
+                   qApp->downloadManager(), SLOT(download(QWebEngineDownloadItem*)));
 
   // Enter global event loop.
   return Application::exec();

src/miscellaneous/application.h

@@ -131,15 +131,15 @@ class Application : public QtSingleApplication {
     }
 
     inline QString tempFolderPath() {
-      return IOFactory::getSystemFolder(SYSTEM_FOLDER_ENUM::TempLocation);
+      return IOFactory::getSystemFolder(QStandardPaths::TempLocation);
     }
 
     inline QString documentsFolderPath() {
-      return IOFactory::getSystemFolder(SYSTEM_FOLDER_ENUM::DocumentsLocation);
+      return IOFactory::getSystemFolder(QStandardPaths::DocumentsLocation);
     }
 
     inline QString homeFolderPath() {
-      return IOFactory::getSystemFolder(SYSTEM_FOLDER_ENUM::HomeLocation);
+      return IOFactory::getSystemFolder(QStandardPaths::HomeLocation);
     }
 
     void backupDatabaseSettings(bool backup_database, bool backup_settings,

src/miscellaneous/iofactory.cpp

@@ -30,8 +30,8 @@
 IOFactory::IOFactory() {
 }
 
-QString IOFactory::getSystemFolder(SYSTEM_FOLDER_ENUM::StandardLocation location) {
-  return SYSTEM_FOLDER_ENUM::writableLocation(location);
+QString IOFactory::getSystemFolder(QStandardPaths::StandardLocation location) {
+  return QStandardPaths::writableLocation(location);
 }
 
 QString IOFactory::ensureUniqueFilename(const QString &name, const QString &append_format) {

src/miscellaneous/iofactory.h

@@ -23,7 +23,6 @@
 #include "definitions/definitions.h"
 
 #include <QStandardPaths>
-#define SYSTEM_FOLDER_ENUM QStandardPaths
 
 
 class IOFactory {
@@ -34,7 +33,7 @@ class IOFactory {
 
   public:   
     // Returns system-wide folder according to type.
-    static QString getSystemFolder(SYSTEM_FOLDER_ENUM::StandardLocation location);
+    static QString getSystemFolder(QStandardPaths::StandardLocation location);
 
     // Checks given file if it exists and if it does, then generates non-existing new file
     // according to format.

src/miscellaneous/settings.cpp

@@ -181,13 +181,13 @@ DKEY Downloads::AlwaysPromptForFilename               = "prompt_for_filename";
 DVALUE(bool) Downloads::AlwaysPromptForFilenameDef    = false;
 
 DKEY Downloads::TargetDirectory                       = "target_directory";
-DVALUE(QString) Downloads::TargetDirectoryDef         = IOFactory::getSystemFolder(SYSTEM_FOLDER_ENUM::DesktopLocation);
+DVALUE(QString) Downloads::TargetDirectoryDef         = IOFactory::getSystemFolder(QStandardPaths::DesktopLocation);
 
 DKEY Downloads::RemovePolicy             = "remove_policy";
 DVALUE(int) Downloads::RemovePolicyDef   = DownloadManager::Never;
 
 DKEY Downloads::TargetExplicitDirectory                  = "target_explicit_directory";
-DVALUE(QString) Downloads::TargetExplicitDirectoryDef    = IOFactory::getSystemFolder(SYSTEM_FOLDER_ENUM::DesktopLocation);
+DVALUE(QString) Downloads::TargetExplicitDirectoryDef    = IOFactory::getSystemFolder(QStandardPaths::DesktopLocation);
 
 DKEY Downloads::ShowDownloadsWhenNewDownloadStarts = "show_downloads_on_new_download_start";
 DVALUE(bool) Downloads::ShowDownloadsWhenNewDownloadStartsDef = true;

src/network-web/downloadmanager.cpp

@@ -39,6 +39,7 @@
 #include <QSettings>
 #include <QDebug>
 #include <QWebEngineSettings>
+#include <QWebEngineDownloadItem>
 
 
 DownloadItem::DownloadItem(bool is_direct_download, QNetworkReply *reply, QWidget *parent) : QWidget(parent),
@@ -512,6 +513,10 @@ void DownloadManager::download(const QUrl &url, bool direct_download) {
   download(QNetworkRequest(url), direct_download);
 }
 
+void DownloadManager::download(QWebEngineDownloadItem *down) {
+  download(down->url(), true);
+}
+
 void DownloadManager::handleUnsupportedContent(QNetworkReply *reply, bool direct_download) {
   if (reply == NULL || reply->url().isEmpty()) {
     return;

src/network-web/downloadmanager.h

@@ -32,6 +32,7 @@ class AutoSaver;
 class DownloadModel;
 class QFileIconProvider;
 class QMimeData;
+class QWebEngineDownloadItem;
 
 class DownloadItem : public QWidget {
     Q_OBJECT
@@ -127,6 +128,7 @@ class DownloadManager : public TabContent {
   public slots:
     void download(const QNetworkRequest &request, bool direct_download = false);
     void download(const QUrl &url, bool direct_download = false);
+    void download(QWebEngineDownloadItem *down);
     void handleUnsupportedContent(QNetworkReply *reply, bool direct_download = false);
     void cleanup();
 

src/network-web/webview.cpp

@@ -136,10 +136,6 @@ void WebView::saveCurrentPageToFile() {
 }
 
 void WebView::createConnections() {
-  connect(this, SIGNAL(loadFinished(bool)), this, SLOT(onLoadFinished(bool)));
-  connect(this, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(popupContextMenu(QPoint)));
-  connect(page(), SIGNAL(downloadRequested(QNetworkRequest)), this, SLOT(downloadLink(QNetworkRequest)));
-
   connect(m_actionSavePageAs, SIGNAL(triggered()), this, SLOT(saveCurrentPageToFile()));
   connect(m_actionPrint, SIGNAL(triggered()), this, SLOT(printCurrentPage()));
   connect(m_actionOpenLinkNewTab, SIGNAL(triggered()), this, SLOT(openLinkInNewTab()));
@@ -232,10 +228,6 @@ void WebView::printCurrentPage() {
   print_preview.data()->exec();
 }
 
-void WebView::downloadLink(const QNetworkRequest &request) {
-  qApp->downloadManager()->download(request);
-}
-
 void WebView::mousePressEvent(QMouseEvent *event) {
   if (event->button() & Qt::MiddleButton) {
     m_gestureOrigin = event->pos();

src/network-web/webview.h

@@ -65,9 +65,6 @@ class WebView : public QWebEngineView {
     void saveCurrentPageToFile();
     void printCurrentPage();
 
-  private slots:
-    void downloadLink(const QNetworkRequest &request);
-
   protected:
     // Initializes all actions.
     void initializeActions();