fix #793!

src/librssguard/gui/settings/settingsbrowsermail.cpp

@@ -79,6 +79,14 @@ SettingsBrowserMail::SettingsBrowserMail(Settings* settings, QWidget* parent)
             m_ui->m_btnDeleteTool->setEnabled(current != nullptr);
             m_ui->m_btnEditTool->setEnabled(current != nullptr);
           });
+
+#if !defined(USE_WEBENGINE)
+  // Remove WebEngine tab.
+  m_ui->m_tabBrowserProxy->removeTab(1);
+#else
+  connect(m_ui->m_txtWebEngineChromiumFlags, &QPlainTextEdit::textChanged, this, &SettingsBrowserMail::dirtifySettings);
+  connect(m_ui->m_txtWebEngineChromiumFlags, &QPlainTextEdit::textChanged, this, &SettingsBrowserMail::requireRestart);
+#endif
 }
 
 SettingsBrowserMail::~SettingsBrowserMail() {
@@ -180,6 +188,10 @@ void SettingsBrowserMail::loadSettings() {
   m_ui->m_grpCustomExternalEmail
     ->setChecked(settings()->value(GROUP(Browser), SETTING(Browser::CustomExternalEmailEnabled)).toBool());
 
+  // WebEngine.
+  m_ui->m_txtWebEngineChromiumFlags
+    ->setPlainText(settings()->value(GROUP(Browser), SETTING(Browser::WebEngineChromiumFlags)).toString());
+
   // Load the settings.
   QNetworkProxy::ProxyType selected_proxy_type =
     static_cast<QNetworkProxy::ProxyType>(settings()->value(GROUP(Proxy), SETTING(Proxy::Type)).toInt());
@@ -226,6 +238,11 @@ void SettingsBrowserMail::saveSettings() {
                        Browser::CustomExternalEmailEnabled,
                        m_ui->m_grpCustomExternalEmail->isChecked());
 
+  // WebEngine.
+  settings()->setValue(GROUP(Browser),
+                       Browser::WebEngineChromiumFlags,
+                       m_ui->m_txtWebEngineChromiumFlags->toPlainText());
+
   auto proxy = m_proxyDetails->proxy();
 
   settings()->setValue(GROUP(Proxy), Proxy::Type, int(proxy.type()));

src/librssguard/gui/settings/settingsbrowsermail.ui

@@ -37,6 +37,23 @@
        </item>
       </layout>
      </widget>
+     <widget class="QWidget" name="m_tabWebEngine">
+      <attribute name="title">
+       <string>WebEngine</string>
+      </attribute>
+      <layout class="QFormLayout" name="formLayout_4">
+       <item row="0" column="0">
+        <widget class="QLabel" name="label">
+         <property name="text">
+          <string>Custom &quot;QTWEBENGINE_CHROMIUM_FLAGS&quot; flags</string>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="0" colspan="2">
+        <widget class="QPlainTextEdit" name="m_txtWebEngineChromiumFlags"/>
+       </item>
+      </layout>
+     </widget>
      <widget class="QWidget" name="m_tabExternalBrowser">
       <attribute name="title">
        <string>External web browser</string>
@@ -361,17 +378,17 @@
   </layout>
  </widget>
  <customwidgets>
-  <customwidget>
-   <class>BaseLineEdit</class>
-   <extends>QLineEdit</extends>
-   <header>baselineedit.h</header>
-  </customwidget>
   <customwidget>
    <class>HelpSpoiler</class>
    <extends>QWidget</extends>
    <header>helpspoiler.h</header>
    <container>1</container>
   </customwidget>
+  <customwidget>
+   <class>BaseLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>baselineedit.h</header>
+  </customwidget>
  </customwidgets>
  <tabstops>
   <tabstop>m_tabBrowserProxy</tabstop>

src/librssguard/miscellaneous/application.cpp

@@ -70,6 +70,14 @@ Application::Application(const QString& id, int& argc, char** argv, const QStrin
   m_mainForm = nullptr;
   m_trayIcon = nullptr;
   m_settings = Settings::setupSettings(this);
+
+#if defined(USE_WEBENGINE)
+  if (!m_forcedNoWebEngine && qgetenv("QTWEBENGINE_CHROMIUM_FLAGS").isEmpty()) {
+    qputenv("QTWEBENGINE_CHROMIUM_FLAGS",
+            settings()->value(GROUP(Browser), SETTING(Browser::WebEngineChromiumFlags)).toString().toLocal8Bit());
+  }
+#endif
+
   m_nodejs = new NodeJs(m_settings, this);
   m_webFactory = new WebFactory(this);
   m_system = new SystemFactory(this);

src/librssguard/miscellaneous/settings.cpp

@@ -407,6 +407,9 @@ DKEY Notifications::ID = "notifications";
 // Web browser.
 DKEY Browser::ID = "browser";
 
+DKEY Browser::WebEngineChromiumFlags = "webengine_chromium_flags";
+DVALUE(QString) Browser::WebEngineChromiumFlagsDef = QSL("--enable-smooth-scrolling");
+
 DKEY Browser::OpenLinksInExternalBrowserRightAway = "open_link_externally_wo_confirmation";
 DVALUE(bool) Browser::OpenLinksInExternalBrowserRightAwayDef = false;
 

src/librssguard/miscellaneous/settings.h

@@ -446,6 +446,9 @@ namespace Notifications {
 namespace Browser {
   KEY ID;
 
+  KEY WebEngineChromiumFlags;
+  VALUE(QString) WebEngineChromiumFlagsDef;
+
   KEY OpenLinksInExternalBrowserRightAway;
   VALUE(bool) OpenLinksInExternalBrowserRightAwayDef;