Support Selection in QLiteHtmlBrowser

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## v2.3.0
+
+- [#5](https://github.com/procitec/qlitehtmlbrowser/issues/5): Implement selection
+
+
 ## v2.2.1
 
 - [#17](https://github.com/procitec/qlitehtmlbrowser/issues/17): Scale changed signal

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.28)
 
-project( QLiteHtmlBrowser VERSION 2.2.1 )
+project( QLiteHtmlBrowser VERSION 2.3.0 )
 
 include(GNUInstallDirs)
 

include/qlitehtmlbrowser/QLiteHtmlBrowser.h

@@ -25,6 +25,11 @@ class QLITEHTMLBROWSER_EXPORT QLiteHtmlBrowser : public QWidget
 {
   Q_OBJECT
 
+#ifdef UNIT_TEST
+  friend class FindTest;
+  friend class SelectionTest;
+#endif
+
   /// property to access the url that is currently shown in the browser
   Q_PROPERTY( QUrl source READ source WRITE setSource )
 
@@ -155,6 +160,8 @@ class QLITEHTMLBROWSER_EXPORT QLiteHtmlBrowser : public QWidget
   QColor highlightColor() const;
   void   setHighlightColor( QColor color );
 
+  QString selectedText() const;
+
 public Q_SLOTS:
   /// set URL to given url. The URL may be an url to local file, QtHelp, http etc.
   /// The URL could contain an anchor element. Currently parameters to URL like
@@ -188,7 +195,9 @@ public Q_SLOTS:
   /// send when scale changes
   void scaleChanged();
 
+  /// send when selection changes
+  void selectionChanged();
+
 protected:
-private:
   QLiteHtmlBrowserImpl* mImpl = nullptr;
 };

src/CMakeLists.txt

@@ -22,6 +22,8 @@ target_sources(QLiteHtmlBrowser
         QLiteHtmlBrowser.cpp
         QLiteHtmlBrowserImpl.cpp
         QLiteHtmlBrowserImpl.h
+        TextManager.h
+        TextManager.cpp
         container_qt.cpp
         container_qt.h
         browserdefinitions.h

src/QLiteHtmlBrowser.cpp

@@ -19,6 +19,7 @@ QLiteHtmlBrowser::QLiteHtmlBrowser( QWidget* parent )
   connect( mImpl, &QLiteHtmlBrowserImpl::urlChanged, this, &QLiteHtmlBrowser::sourceChanged );
   connect( mImpl, &QLiteHtmlBrowserImpl::anchorClicked, this, &QLiteHtmlBrowser::anchorClicked );
   connect( mImpl, &QLiteHtmlBrowserImpl::scaleChanged, this, &QLiteHtmlBrowser::scaleChanged );
+  connect( mImpl, &QLiteHtmlBrowserImpl::selectionChanged, this, &QLiteHtmlBrowser::selectionChanged );
 }
 
 QUrl QLiteHtmlBrowser::source() const
@@ -187,3 +188,8 @@ void QLiteHtmlBrowser::setHighlightColor( QColor color )
 {
   mImpl->setHighlightColor( color );
 }
+
+QString QLiteHtmlBrowser::selectedText() const
+{
+  return mImpl->selectedText();
+}

src/QLiteHtmlBrowserImpl.cpp

@@ -25,6 +25,7 @@ QLiteHtmlBrowserImpl::QLiteHtmlBrowserImpl( QWidget* parent )
   shortcut = new QShortcut( QKeySequence{ QKeySequence::Back }, this );
   connect( shortcut, &QShortcut::activated, this, &QLiteHtmlBrowserImpl::backward );
   connect( mContainer, &container_qt::scaleChanged, this, &QLiteHtmlBrowserImpl::scaleChanged );
+  connect( mContainer, &container_qt::selectionChanged, this, &QLiteHtmlBrowserImpl::selectionChanged );
 
   auto* layout = new QVBoxLayout;
   layout->setContentsMargins( 0, 0, 0, 0 );
@@ -494,3 +495,12 @@ void QLiteHtmlBrowserImpl::previousFindMatch()
     mContainer->findPreviousMatch();
   }
 }
+QString QLiteHtmlBrowserImpl::selectedText() const
+{
+  QString text;
+  if ( mContainer )
+  {
+    text = mContainer->selectedText();
+  }
+  return text;
+}

src/QLiteHtmlBrowserImpl.h

@@ -70,6 +70,8 @@ class QLiteHtmlBrowserImpl : public QWidget
   QColor highlightColor() const;
   void   setHighlightColor( QColor color );
 
+  QString selectedText() const;
+
 protected:
   void changeEvent( QEvent* ) override;
   void mousePressEvent( QMouseEvent* ) override;
@@ -79,6 +81,11 @@ class QLiteHtmlBrowserImpl : public QWidget
   void urlChanged( const QUrl& );
   void anchorClicked( const QUrl& );
   void scaleChanged();
+  void selectionChanged();
+
+#ifdef UNIT_TEST
+  container_qt* container() const { return mContainer; }
+#endif
 
 private:
   class HistoryEntry