[FEATURE][browser] Add "New" menu to context menu on directories

With option to create a new geopackage or shapefile in the
clicked directory

python/gui/auto_generated/qgsnewvectorlayerdialog.sip.in

@@ -17,10 +17,13 @@ class QgsNewVectorLayerDialog: QDialog
 %End
   public:
 
-    static QString runAndCreateLayer( QWidget *parent = 0, QString *enc = 0, const QgsCoordinateReferenceSystem &crs = QgsCoordinateReferenceSystem() );
+    static QString runAndCreateLayer( QWidget *parent = 0, QString *enc = 0, const QgsCoordinateReferenceSystem &crs = QgsCoordinateReferenceSystem(),
+                                      const QString &initialPath = QString() );
 %Docstring
 Runs the dialog and creates a layer matching the dialog parameters.
 
+If the ``initialPath`` argument is specified, then the dialog will default to the specified filename.
+
 :return: fileName on success, empty string use aborted, QString() if creation failed
 %End
 
@@ -42,9 +45,21 @@ Returns the file format for storage
 %Docstring
 Returns the file format for storage
 %End
+
     QString filename() const;
 %Docstring
 Returns the name for the new layer
+
+.. seealso:: :py:func:`setFilename`
+%End
+
+    void setFilename( const QString &filename );
+%Docstring
+Sets the initial file name to show in the dialog.
+
+.. seealso:: :py:func:`filename`
+
+.. versionadded:: 3.6
 %End
 
     QgsCoordinateReferenceSystem crs() const;

src/app/browser/qgsinbuiltdataitemproviders.cpp

@@ -27,6 +27,8 @@
 #include "qgsbrowserdockwidget_p.h"
 #include "qgswindowmanagerinterface.h"
 #include "qgsrasterlayer.h"
+#include "qgsnewvectorlayerdialog.h"
+#include "qgsnewgeopackagelayerdialog.h"
 #include <QMenu>
 #include <QInputDialog>
 #include <QMessageBox>
@@ -47,8 +49,9 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
 
   QgsSettings settings;
 
+  QMenu *newMenu = new QMenu( tr( "New" ), menu );
 
-  QAction *createFolder = new QAction( tr( "New Directory…" ), menu );
+  QAction *createFolder = new QAction( tr( "Directory…" ), menu );
   connect( createFolder, &QAction::triggered, this, [ = ]
   {
     bool ok = false;
@@ -71,7 +74,34 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
       }
     }
   } );
-  menu->addAction( createFolder );
+  newMenu->addAction( createFolder );
+
+  QAction *createGpkg = new QAction( tr( "GeoPackage…" ), newMenu );
+  createGpkg->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "mActionNewGeoPackageLayer.svg" ) ) );
+  connect( createGpkg, &QAction::triggered, this, [ = ]
+  {
+    QgsNewGeoPackageLayerDialog dialog( QgisApp::instance() );
+    QDir dir( directoryItem->dirPath() );
+    dialog.setDatabasePath( dir.filePath( QStringLiteral( "new_geopackage" ) ) );
+    dialog.setCrs( QgsProject::instance()->defaultCrsForNewLayers() );
+    if ( dialog.exec() )
+      item->refresh();
+  } );
+  newMenu->addAction( createGpkg );
+
+  QAction *createShp = new QAction( tr( "ShapeFile…" ), newMenu );
+  createShp->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "mActionNewVectorLayer.svg" ) ) );
+  connect( createShp, &QAction::triggered, this, [ = ]
+  {
+    QString enc;
+    QDir dir( directoryItem->dirPath() );
+    const QString newFile = QgsNewVectorLayerDialog::runAndCreateLayer( QgisApp::instance(), &enc, QgsProject::instance()->defaultCrsForNewLayers(), dir.filePath( QStringLiteral( "new_layer.shp" ) ) );
+    if ( !newFile.isEmpty() )
+      item->refresh();
+  } );
+  newMenu->addAction( createShp );
+
+  menu->addMenu( newMenu );
 
   menu->addSeparator();
 
@@ -97,7 +127,6 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
         renameFavorite( favoriteItem );
       } );
       menu->addAction( actionRename );
-      menu->addSeparator();
       QAction *removeFavoriteAction = new QAction( tr( "Remove Favorite" ), menu );
       connect( removeFavoriteAction, &QAction::triggered, this, [ = ]
       {

src/gui/qgsnewvectorlayerdialog.cpp

@@ -30,7 +30,7 @@
 #include <QComboBox>
 #include <QLibrary>
 #include <QFileDialog>
-
+#include <QMessageBox>
 
 QgsNewVectorLayerDialog::QgsNewVectorLayerDialog( QWidget *parent, Qt::WindowFlags fl )
   : QDialog( parent, fl )
@@ -104,6 +104,7 @@ QgsNewVectorLayerDialog::QgsNewVectorLayerDialog( QWidget *parent, Qt::WindowFla
 
   mFileName->setStorageMode( QgsFileWidget::SaveFile );
   mFileName->setFilter( QgsVectorFileWriter::filterForDriver( mFileFormatComboBox->currentData( Qt::UserRole ).toString() ) );
+  mFileName->setConfirmOverwrite( false );
   mFileName->setDialogTitle( tr( "Save Layer As" ) );
   mFileName->setDefaultRoot( settings.value( QStringLiteral( "UI/lastVectorFileFilterDir" ), QDir::homePath() ).toString() );
   connect( mFileName, &QgsFileWidget::fileChanged, this, [ = ]
@@ -245,6 +246,11 @@ QString QgsNewVectorLayerDialog::filename() const
   return mFileName->filePath();
 }
 
+void QgsNewVectorLayerDialog::setFilename( const QString &filename )
+{
+  mFileName->setFilePath( filename );
+}
+
 void QgsNewVectorLayerDialog::checkOk()
 {
   bool ok = ( !mFileName->filePath().isEmpty() && mAttributeView->topLevelItemCount() > 0 );
@@ -252,15 +258,21 @@ void QgsNewVectorLayerDialog::checkOk()
 }
 
 // this is static
-QString QgsNewVectorLayerDialog::runAndCreateLayer( QWidget *parent, QString *pEnc, const QgsCoordinateReferenceSystem &crs )
+QString QgsNewVectorLayerDialog::runAndCreateLayer( QWidget *parent, QString *pEnc, const QgsCoordinateReferenceSystem &crs, const QString &initialPath )
 {
   QgsNewVectorLayerDialog geomDialog( parent );
   geomDialog.setCrs( crs );
+  if ( !initialPath.isEmpty() )
+    geomDialog.setFilename( initialPath );
   if ( geomDialog.exec() == QDialog::Rejected )
   {
     return QString();
   }
 
+  if ( QFile::exists( geomDialog.filename() ) && QMessageBox::warning( parent, tr( "New ShapeFile Layer" ), tr( "The layer already exists. Are you sure you want to overwrite the existing file?" ),
+       QMessageBox::Yes | QMessageBox::Cancel, QMessageBox::Cancel ) != QMessageBox::Yes )
+    return QString();
+
   QgsWkbTypes::Type geometrytype = geomDialog.selectedType();
   QString fileformat = geomDialog.selectedFileFormat();
   QString enc = geomDialog.selectedFileEncoding();

src/gui/qgsnewvectorlayerdialog.h

@@ -36,9 +36,13 @@ class GUI_EXPORT QgsNewVectorLayerDialog: public QDialog, private Ui::QgsNewVect
 
     /**
      * Runs the dialog and creates a layer matching the dialog parameters.
+     *
+     * If the \a initialPath argument is specified, then the dialog will default to the specified filename.
+     *
      * \returns fileName on success, empty string use aborted, QString() if creation failed
      */
-    static QString runAndCreateLayer( QWidget *parent = nullptr, QString *enc = nullptr, const QgsCoordinateReferenceSystem &crs = QgsCoordinateReferenceSystem() );
+    static QString runAndCreateLayer( QWidget *parent = nullptr, QString *enc = nullptr, const QgsCoordinateReferenceSystem &crs = QgsCoordinateReferenceSystem(),
+                                      const QString &initialPath = QString() );
 
     QgsNewVectorLayerDialog( QWidget *parent SIP_TRANSFERTHIS = nullptr, Qt::WindowFlags fl = QgsGuiUtils::ModalDialogFlags );
     ~QgsNewVectorLayerDialog() override;
@@ -50,9 +54,23 @@ class GUI_EXPORT QgsNewVectorLayerDialog: public QDialog, private Ui::QgsNewVect
     QString selectedFileFormat() const;
     //! Returns the file format for storage
     QString selectedFileEncoding() const;
-    //! Returns the name for the new layer
+
+    /**
+     * Returns the name for the new layer
+     *
+     * \see setFilename()
+     */
     QString filename() const;
 
+    /**
+     * Sets the initial file name to show in the dialog.
+     *
+     * \see filename()
+     *
+     * \since QGIS 3.6
+     */
+    void setFilename( const QString &filename );
+
     /**
      * Returns the selected CRS for the new layer.
      * \see setCrs()