Description row fits to content when screen size change

Already expanded description row will now adjust with respect to any window size changes to fit the content.

src/contentmanagerview.cpp

@@ -21,6 +21,7 @@ ContentManagerView::ContentManagerView(QWidget *parent)
 
     connect(mp_ui->m_view, &QTreeView::clicked, this, &ContentManagerView::onClicked);
     connect(mp_ui->m_view, &QTreeView::expanded, this, &ContentManagerView::onExpanded);
+    connect(this, &ContentManagerView::sizeHintChanged, managerDelegate, &QStyledItemDelegate::sizeHintChanged);
 }
 
 ContentManagerView::~ContentManagerView()
@@ -56,3 +57,21 @@ void ContentManagerView::onExpanded(QModelIndex index)
     if (!mp_ui->m_view->isFirstColumnSpanned(0, index))
         mp_ui->m_view->setFirstColumnSpanned(0, index, true);
 }
+
+/**
+ * @brief Notify delegate to update size hint of the visible description rows.
+ */
+void ContentManagerView::updateSizeHint()
+{
+    auto view = this->getView();
+    if (!view->isVisible())
+        return;
+
+    auto visibleIndex = view->indexAt(view->rect().topLeft());
+    while (visibleIndex.isValid())
+    {
+        if (isDescriptionIndex(visibleIndex))
+            emit sizeHintChanged(visibleIndex);
+        visibleIndex = view->indexBelow(visibleIndex);
+    }
+}

src/contentmanagerview.h

@@ -22,6 +22,10 @@ public slots:
     void showLoader(bool show);
     void onClicked(QModelIndex index);
     void onExpanded(QModelIndex index);
+    void updateSizeHint();
+
+signals:
+    void sizeHintChanged(const QModelIndex& index);
 
 private:
     Ui::contentmanagerview *mp_ui;

src/mainwindow.cpp

@@ -125,6 +125,12 @@ void MainWindow::closeEvent(QCloseEvent *event)
     QMainWindow::closeEvent(event);
 }
 
+void MainWindow::resizeEvent(QResizeEvent *event)
+{
+    QMainWindow::resizeEvent(event);
+    KiwixApp::instance()->getContentManager()->getView()->updateSizeHint();
+}
+
 void MainWindow::readingListToggled(bool state)
 {
     if (state) {

src/mainwindow.h

@@ -29,6 +29,7 @@ public:
 protected:
     bool eventFilter(QObject* object, QEvent* event) override;
     void closeEvent(QCloseEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
 
 private slots:
     void toggleFullScreen();