Qt5: Added new option to use Caret Browsing

It can be enabled from Preferences -> Browsing,
Menu View or with F7 shortcut.

src/lib/app/mainapplication.cpp

@@ -373,6 +373,7 @@ void MainApplication::loadSettings()
     m_websettings->setDefaultTextEncoding(settings.value("DefaultEncoding", m_websettings->defaultTextEncoding()).toString());
 
 #if QT_VERSION >= 0x050000
+    m_websettings->setAttribute(QWebSettings::CaretBrowsingEnabled, settings.value("CaretBrowsing", false).toBool());
     m_websettings->setAttribute(QWebSettings::ScrollAnimatorEnabled, settings.value("AnimateScrolling", true).toBool());
 #endif
 

src/lib/app/qupzilla.cpp

@@ -401,6 +401,12 @@ void QupZilla::setupMenu()
     m_menuEncoding = new QMenu(this);
     actionEncoding->setMenu(m_menuEncoding);
     connect(m_menuEncoding, SIGNAL(aboutToShow()), this, SLOT(aboutToShowEncodingMenu()));
+#if QT_VERSION >= 0x050000
+    m_actionCaretBrowsing = new QAction(tr("Enable &Caret Browsing"), this);
+    m_actionCaretBrowsing->setCheckable(true);
+    m_actionCaretBrowsing->setShortcut(QKeySequence("F7"));
+    connect(m_actionCaretBrowsing, SIGNAL(triggered()), this, SLOT(triggerCaretBrowsing()));
+#endif
 
     QMenu* toolbarsMenu = new QMenu(tr("Toolbars"));
 #ifndef Q_OS_MAC
@@ -422,6 +428,9 @@ void QupZilla::setupMenu()
     m_menuView->addAction(QIcon::fromTheme("zoom-out"), tr("Zoom &Out"), this, SLOT(zoomOut()))->setShortcut(QKeySequence("Ctrl+-"));
     m_menuView->addAction(QIcon::fromTheme("zoom-original"), tr("Reset"), this, SLOT(zoomReset()))->setShortcut(QKeySequence("Ctrl+0"));
     m_menuView->addSeparator();
+#if QT_VERSION >= 0x050000
+    m_menuView->addAction(m_actionCaretBrowsing);
+#endif
     m_menuView->addAction(actionEncoding);
     m_menuView->addSeparator();
     m_menuView->addAction(QIcon::fromTheme("text-html"), tr("&Page Source"), this, SLOT(showSource()))->setShortcut(QKeySequence("Ctrl+U"));
@@ -969,6 +978,10 @@ void QupZilla::aboutToShowViewMenu()
 #endif
     m_actionShowStatusbar->setChecked(statusBar()->isVisible());
     m_actionShowBookmarksToolbar->setChecked(m_bookmarksToolbar->isVisible());
+
+#if QT_VERSION >= 0x050000
+    m_actionCaretBrowsing->setChecked(mApp->webSettings()->testAttribute(QWebSettings::CaretBrowsingEnabled));
+#endif
 }
 
 void QupZilla::aboutToShowEditMenu()
@@ -1075,6 +1088,20 @@ void QupZilla::changeEncoding()
     }
 }
 
+#if QT_VERSION >= 0x050000
+void QupZilla::triggerCaretBrowsing()
+{
+    bool enable = !mApp->webSettings()->testAttribute(QWebSettings::CaretBrowsingEnabled);
+
+    Settings settings;
+    settings.beginGroup("Web-Browser-Settings");
+    settings.setValue("CaretBrowsing", enable);
+    settings.endGroup();
+
+    mApp->webSettings()->setAttribute(QWebSettings::CaretBrowsingEnabled, enable);
+}
+#endif
+
 void QupZilla::bookmarkPage()
 {
     mApp->browsingLibrary()->bookmarksManager()->addBookmark(weView());

src/lib/app/qupzilla.h

@@ -188,6 +188,10 @@ private slots:
     void fullScreen(bool make);
     void changeEncoding();
 
+#if QT_VERSION >= 0x050000
+    void triggerCaretBrowsing();
+#endif
+
     void closeWindow();
     bool quitApp();
 #ifdef Q_OS_WIN
@@ -260,6 +264,7 @@ private:
     QAction* m_actionPrivateBrowsing;
     QAction* m_actionStop;
     QAction* m_actionReload;
+    QAction* m_actionCaretBrowsing;
     QAction* m_actionRestoreTab;
 
     QLabel* m_privateBrowsing;

src/lib/preferences/preferences.cpp

@@ -244,6 +244,7 @@ Preferences::Preferences(QupZilla* mainClass, QWidget* parent)
     ui->allowDNSPrefetch->setChecked(settings.value("DNS-Prefetch", false).toBool());
     ui->linksInFocusChain->setChecked(settings.value("IncludeLinkInFocusChain", false).toBool());
     ui->zoomTextOnly->setChecked(settings.value("zoomTextOnly", false).toBool());
+    ui->caretBrowsing->setChecked(settings.value("CaretBrowsing", false).toBool());
     ui->animateScrolling->setChecked(settings.value("AnimateScrolling", true).toBool());
     ui->printEBackground->setChecked(settings.value("PrintElementBackground", true).toBool());
     ui->wheelScroll->setValue(settings.value("wheelScrollLines", qApp->wheelScrollLines()).toInt());
@@ -891,6 +892,7 @@ void Preferences::saveSettings()
     settings.setValue("JavaScriptCanAccessClipboard", ui->jscanAccessClipboard->isChecked());
     settings.setValue("IncludeLinkInFocusChain", ui->linksInFocusChain->isChecked());
     settings.setValue("zoomTextOnly", ui->zoomTextOnly->isChecked());
+    settings.setValue("CaretBrowsing", ui->caretBrowsing->isChecked());
     settings.setValue("AnimateScrolling", ui->animateScrolling->isChecked());
     settings.setValue("PrintElementBackground", ui->printEBackground->isChecked());
     settings.setValue("wheelScrollLines", ui->wheelScroll->value());

src/lib/preferences/preferences.ui

@@ -1061,6 +1061,13 @@
                </property>
               </widget>
              </item>
+             <item>
+              <widget class="QCheckBox" name="caretBrowsing">
+               <property name="text">
+                <string>Enable caret browsing</string>
+               </property>
+              </widget>
+             </item>
              <item>
               <widget class="QCheckBox" name="zoomTextOnly">
                <property name="text">