* Sets the default search to the currently selected text (#1886)

* * Sets the default search to the currently selected text

* * Specification code

src/widgets/markdownviewwindow.cpp

@@ -1115,6 +1115,23 @@ QPoint MarkdownViewWindow::getFloatingWidgetPosition()
     return TextViewWindowHelper::getFloatingWidgetPosition(this);
 }
 
+QString MarkdownViewWindow::selectedText() const
+{
+    switch (m_mode) {
+    case ViewWindowMode::FullPreview:
+    case ViewWindowMode::Invalid:
+        Q_FALLTHROUGH();
+    case ViewWindowMode::Read:
+        Q_ASSERT(m_viewer);
+        return m_viewer->selectedText();
+    case ViewWindowMode::Edit:
+    case ViewWindowMode::FocusPreview:
+        Q_ASSERT(m_editor);
+        return m_editor->getTextEdit()->selectedText();
+    }
+    return QString("");
+}
+
 void MarkdownViewWindow::handleImageHostChanged(const QString &p_hostName)
 {
     m_imageHost = ImageHostMgr::getInst().find(p_hostName);

src/widgets/markdownviewwindow.h

@@ -93,6 +93,8 @@ namespace vnotex
 
         QPoint getFloatingWidgetPosition() Q_DECL_OVERRIDE;
 
+        QString selectedText() const Q_DECL_OVERRIDE;
+
     private:
         void setupUI();
 

src/widgets/textviewwindow.cpp

@@ -291,3 +291,9 @@ QPoint TextViewWindow::getFloatingWidgetPosition()
 {
     return TextViewWindowHelper::getFloatingWidgetPosition(this);
 }
+
+QString TextViewWindow::selectedText() const
+{
+    Q_ASSERT(m_editor);
+    return m_editor->getTextEdit()->selectedText();
+}

src/widgets/textviewwindow.h

@@ -66,6 +66,8 @@ namespace vnotex
 
         QPoint getFloatingWidgetPosition() Q_DECL_OVERRIDE;
 
+        QString selectedText() const Q_DECL_OVERRIDE;
+
     private:
         void setupUI();
 

src/widgets/viewwindow.cpp

@@ -655,6 +655,11 @@ void ViewWindow::handleImageHostChanged(const QString &p_hostName)
     Q_ASSERT(false);
 }
 
+QString ViewWindow::selectedText() const
+{
+    return QString();
+}
+
 ViewWindow::TypeAction ViewWindow::toolBarActionToTypeAction(ViewWindowToolBarHelper::Action p_action)
 {
     Q_ASSERT(p_action >= ViewWindowToolBarHelper::Action::TypeBold
@@ -970,7 +975,7 @@ void ViewWindow::showFindAndReplaceWidget()
                 this, &ViewWindow::handleFindAndReplaceWidgetOpened);
     }
 
-    m_findAndReplace->open(QString());
+    m_findAndReplace->open(selectedText());
 }
 
 void ViewWindow::hideFindAndReplaceWidget()

src/widgets/viewwindow.h

@@ -218,6 +218,8 @@ namespace vnotex
 
         virtual void zoom(bool p_zoomIn) = 0;
 
+        virtual QString selectedText() const;
+
         void showZoomFactor(qreal p_factor);
 
         void showZoomDelta(int p_delta);