BROWSER add optional button box to dock widget

The button box holds Close and Help buttons
and it is hidden by default. Signals are
forwarded.

Fix #54171

python/gui/auto_generated/qgsbrowserdockwidget.sip.in

@@ -234,6 +234,17 @@ Splitter has been moved.
    no longer used.
 %End
 
+    void setButtonBoxVisibility( bool visible );
+%Docstring
+Set button box visibility to ``visible``.
+
+.. note::
+
+   The button box is hidden by default.
+
+.. versionadded:: 3.34
+%End
+
   signals:
     void openFile( const QString &fileName, const QString &fileTypeHint = QString() );
 %Docstring
@@ -246,6 +257,20 @@ Emitted when drop uri list needs to be handled
     void connectionsChanged();
 %Docstring
 Connections changed in the browser
+%End
+
+    void helpRequested();
+%Docstring
+Emitted when the help button in the button box is clicked
+
+.. versionadded:: 3.34
+%End
+
+    void rejected();
+%Docstring
+Emitted when the close button in the button box is clicked
+
+.. versionadded:: 3.34
 %End
 
 };

src/gui/qgsbrowserdockwidget.cpp

@@ -23,6 +23,7 @@
 
 #include <QVBoxLayout>
 #include <QFileDialog>
+#include <QDialogButtonBox>
 
 QgsBrowserDockWidget::QgsBrowserDockWidget( const QString &name, QgsBrowserGuiModel *browserModel, QWidget *parent )
   : QgsDockWidget( parent )
@@ -39,6 +40,15 @@ QgsBrowserDockWidget::QgsBrowserDockWidget( const QString &name, QgsBrowserGuiMo
   mWidget = new QgsBrowserWidget( browserModel );
   layout->addWidget( mWidget );
 
+  mButtonBox = new QDialogButtonBox( QDialogButtonBox::StandardButton::Close | QDialogButtonBox::StandardButton::Help, this );
+  mButtonBox->setVisible( false );
+  layout->addWidget( mButtonBox );
+
+  // Forward signals from button box
+  connect( mButtonBox, &QDialogButtonBox::helpRequested, this, &QgsBrowserDockWidget::helpRequested );
+  connect( mButtonBox, &QDialogButtonBox::rejected, this, &QgsBrowserDockWidget::rejected );
+
+  // Connect action signals
   connect( mWidget, &QgsBrowserWidget::openFile, this, &QgsBrowserDockWidget::openFile );
   connect( mWidget, &QgsBrowserWidget::handleDropUriList, this, &QgsBrowserDockWidget::handleDropUriList );
   connect( mWidget, &QgsBrowserWidget::connectionsChanged, this, &QgsBrowserDockWidget::connectionsChanged );
@@ -226,3 +236,8 @@ void QgsBrowserDockWidget::setActiveIndex( const QModelIndex &index )
 void QgsBrowserDockWidget::splitterMoved()
 {
 }
+
+void QgsBrowserDockWidget::setButtonBoxVisibility( bool visible )
+{
+  mButtonBox->setVisible( visible );
+}

src/gui/qgsbrowserdockwidget.h

@@ -22,6 +22,8 @@
 
 class QgsMessageBar;
 class QgsBrowserWidget;
+class QDialogButtonBox;
+class QAbstractButton;
 
 /**
  * \ingroup gui
@@ -221,6 +223,13 @@ class GUI_EXPORT QgsBrowserDockWidget : public QgsDockWidget
      */
     Q_DECL_DEPRECATED void splitterMoved() SIP_DEPRECATED;
 
+    /**
+     * Set button box visibility to \a visible.
+     * \note The button box is hidden by default.
+     * \since QGIS 3.34
+     */
+    void setButtonBoxVisibility( bool visible );
+
   signals:
     //! Emitted when a file needs to be opened
     void openFile( const QString &fileName, const QString &fileTypeHint = QString() );
@@ -229,9 +238,22 @@ class GUI_EXPORT QgsBrowserDockWidget : public QgsDockWidget
     //! Connections changed in the browser
     void connectionsChanged();
 
+    /**
+    * Emitted when the help button in the button box is clicked
+    * \since QGIS 3.34
+    */
+    void helpRequested();
+
+    /**
+    * Emitted when the close button in the button box is clicked
+    * \since QGIS 3.34
+    */
+    void rejected();
+
   private:
 
     QgsBrowserWidget *mWidget = nullptr;
+    QDialogButtonBox *mButtonBox = nullptr;
 };
 
 #endif // QGSBROWSERDOCKWIDGET_H

src/gui/qgsdatasourcemanagerdialog.cpp

@@ -67,6 +67,12 @@ QgsDataSourceManagerDialog::QgsDataSourceManagerDialog( QgsBrowserGuiModel *brow
   connect( mBrowserWidget, &QgsBrowserDockWidget::openFile, this, &QgsDataSourceManagerDialog::openFile );
   connect( mBrowserWidget, &QgsBrowserDockWidget::connectionsChanged, this, &QgsDataSourceManagerDialog::connectionsChanged );
   connect( this, &QgsDataSourceManagerDialog::updateProjectHome, mBrowserWidget->browserWidget(), &QgsBrowserWidget::updateProjectHome );
+  connect( mBrowserWidget, &QgsBrowserDockWidget::helpRequested, this, [ = ]()
+  {
+    QgsHelp::openHelp( QStringLiteral( "managing_data_source/opening_data.html#the-browser-panel" ) );
+  } );
+  connect( mBrowserWidget, &QgsBrowserDockWidget::rejected, this, &QgsDataSourceManagerDialog::reject );
+  mBrowserWidget->setButtonBoxVisibility( true );
 
   // Add registered source select dialogs
   const QList<QgsSourceSelectProvider *> sourceSelectProviders = QgsGui::sourceSelectProviderRegistry()->providers( );