QgsNewDatabaseTableNameWidget implementation (WIP)

python/core/auto_generated/qgsbrowserproxymodel.sip.in

@@ -133,19 +133,40 @@ filterByLayerType() is ``True``.
 .. seealso:: :py:func:`setFilterByLayerType`
 %End
 
-    void setDataItemProviderKeyFilter( const QStringList &filter );
+    void setDataItemProviderKeyFilter( const QStringList &hiddenItemsFilter );
 %Docstring
-Sets the customization filters for data items based on item's data provider key
+Sets a filter to hide data items based on on item's data provider key.
 
-By default browser model shows all items from all available data items provider and few special
-items (e.g. Favourites). To customize the behavior, set the filter to not load certain data items.
+By default browser model shows all items from all available data item providers and few special
+items (e.g. Favourites).
+To customize the behavior, set the filter to not load certain data items.
 The items that are not based on data item providers have prefix "special:", for example
-"special:Favourites", "special:Home", "PostGIS", "MSSQL"
+"special:Favorites", "special:Home", "PostGIS", "MSSQL"
 
 All items created by the providers listed in filter are hidden from the layer tree.
 This filter is always evaluated.
 
+:param hiddenItemsFilter: a list of data provider prefixes that will be hidden.
+
 .. versionadded:: 3.12
+%End
+
+    bool showLayers() const;
+%Docstring
+Returns ``True`` if layers must be shown, this flag is ``True`` by default.
+
+.. seealso:: :py:func:`setShowLayers`
+
+.. versionadded:: 3.14
+%End
+
+    void setShowLayers( bool showLayers );
+%Docstring
+Sets show layers to ``showLayers``
+
+.. seealso:: :py:func:`showLayers`
+
+.. versionadded:: 3.14
 %End
 
   protected:

python/gui/auto_generated/qgsnewdatabasetablenamewidget.sip.in

@@ -0,0 +1,100 @@
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/gui/qgsnewdatabasetablenamewidget.h                              *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/
+
+
+
+
+
+class QgsNewDatabaseTableNameWidget : QWidget
+{
+%Docstring
+The QgsNewDatabaseTableNameWidget class embeds the browser view to
+select a DB schema and a new table name.
+
+The table name is validated for uniqueness and the selected
+data item provider, schema and table names can be retrieved with
+getters.
+
+.. versionadded:: 3.14
+%End
+
+%TypeHeaderCode
+#include "qgsnewdatabasetablenamewidget.h"
+%End
+  public:
+
+    explicit QgsNewDatabaseTableNameWidget( QgsBrowserGuiModel *browserModel = 0,
+                                            const QStringList &providersFilter = QStringList(),
+                                            QWidget *parent = 0 );
+%Docstring
+Constructs a new QgsNewDatabaseTableNameWidget
+
+:param browserModel: an existing browser model (typically from app), if NULL an instance will be created
+:param providersFilter: optional white list of item provider names (not data providers!) that should be
+                        shown in the widget, if not specified all providers data items with database capabilities will be shown
+:param parent: optional parent for this widget
+%End
+
+    QString schema();
+%Docstring
+Returns the currently selected schema for the new table
+%End
+
+    QString table();
+%Docstring
+Returns the current name of the new table
+%End
+
+    QString dataItemProviderName();
+%Docstring
+Returns the currently selected data item provider name (which is NOT the data provider key!) for the new table
+%End
+
+    bool isValid() const;
+%Docstring
+Returns ``True`` if the widget contains a valid new table name
+%End
+
+    QString validationError();
+%Docstring
+Returns the validation error or an empty string is the widget status is valid
+%End
+
+  signals:
+
+    void validationChanged( bool isValid );
+%Docstring
+This signal is emitted whenever the validation status of the widget changes.
+
+:param isValid: ``True`` if the current status of the widget is valid
+%End
+
+    void schemaNameChanged( const QString &schemaName );
+%Docstring
+This signal is emitted when the user selects a schema.
+
+:param schemaName: the name of the selected schema
+%End
+
+    void tableNameChanged( const QString &tableName );
+%Docstring
+This signal is emitted when the user enters a table name
+
+:param tableName: the name of the new table
+%End
+
+
+};
+
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/gui/qgsnewdatabasetablenamewidget.h                              *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/

python/gui/gui_auto.sip

@@ -59,6 +59,7 @@
 %Include auto_generated/qgsdataitemguiprovider.sip
 %Include auto_generated/qgsdataitemguiproviderregistry.sip
 %Include auto_generated/qgsdatasourceselectdialog.sip
+%Include auto_generated/qgsnewdatabasetablenamewidget.sip
 %Include auto_generated/qgsdetaileditemdata.sip
 %Include auto_generated/qgsdetaileditemdelegate.sip
 %Include auto_generated/qgsdetaileditemwidget.sip

src/core/qgsbrowserproxymodel.cpp

@@ -153,9 +153,28 @@ bool QgsBrowserProxyModel::filterAcceptsRow( int sourceRow, const QModelIndex &s
   if ( !filterAcceptsProviderKey( sourceIndex ) || !filterRootAcceptsProviderKey( sourceIndex ) )
     return false;
 
+  if ( ! mShowLayers )
+  {
+    QgsDataItem *item = mModel->dataItem( sourceIndex );
+    if ( qobject_cast< QgsLayerItem * >( item ) )
+    {
+      return false;
+    }
+  }
+
   return filterAcceptsItem( sourceIndex ) || filterAcceptsAncestor( sourceIndex ) || filterAcceptsDescendant( sourceIndex );
 }
 
+bool QgsBrowserProxyModel::showLayers() const
+{
+  return mShowLayers;
+}
+
+void QgsBrowserProxyModel::setShowLayers( bool showLayers )
+{
+  mShowLayers = showLayers;
+}
+
 QgsMapLayerType QgsBrowserProxyModel::layerType() const
 {
   return mLayerType;

src/core/qgsbrowserproxymodel.h

@@ -144,19 +144,38 @@ class CORE_EXPORT QgsBrowserProxyModel : public QSortFilterProxyModel
     void setLayerType( QgsMapLayerType type );
 
     /**
-     * Sets the customization filters for data items based on item's data provider key
+     * Sets a filter to hide data items based on on item's data provider key.
      *
-     * By default browser model shows all items from all available data items provider and few special
-     * items (e.g. Favourites). To customize the behavior, set the filter to not load certain data items.
+     * By default browser model shows all items from all available data item providers and few special
+     * items (e.g. Favourites).
+     * To customize the behavior, set the filter to not load certain data items.
      * The items that are not based on data item providers have prefix "special:", for example
-     * "special:Favourites", "special:Home", "PostGIS", "MSSQL"
+     * "special:Favorites", "special:Home", "PostGIS", "MSSQL"
      *
      * All items created by the providers listed in filter are hidden from the layer tree.
      * This filter is always evaluated.
      *
+     * \param hiddenItemsFilter a list of data provider prefixes that will be hidden.
+     *
      * \since QGIS 3.12
      */
-    void setDataItemProviderKeyFilter( const QStringList &filter );
+    void setDataItemProviderKeyFilter( const QStringList &hiddenItemsFilter );
+
+    /**
+     * Returns TRUE if layers must be shown, this flag is TRUE by default.
+     *
+     * \see setShowLayers()
+     * \since QGIS 3.14
+     */
+    bool showLayers() const;
+
+    /**
+     * Sets show layers to \a showLayers
+     *
+     * \see showLayers()
+     * \since QGIS 3.14
+     */
+    void setShowLayers( bool showLayers );
 
   protected:
 
@@ -172,6 +191,7 @@ class CORE_EXPORT QgsBrowserProxyModel : public QSortFilterProxyModel
     Qt::CaseSensitivity mCaseSensitivity = Qt::CaseInsensitive;
 
     bool mFilterByLayerType = false;
+    bool mShowLayers = true;
     QgsMapLayerType mLayerType = QgsMapLayerType::VectorLayer;
 
     //! Update filter
@@ -194,6 +214,8 @@ class CORE_EXPORT QgsBrowserProxyModel : public QSortFilterProxyModel
 
     //! Root item accepts provider key.
     bool filterRootAcceptsProviderKey( const QModelIndex &sourceIndex ) const;
+
+
 };
 
 #endif // QGSBROWSERPROXYMODEL_H

src/gui/CMakeLists.txt

@@ -351,6 +351,7 @@ SET(QGIS_GUI_SRCS
   qgsdataitemguiproviderregistry.cpp
   qgsdatumtransformdialog.cpp
   qgsdatasourceselectdialog.cpp
+  qgsnewdatabasetablenamewidget.cpp
   qgsdetaileditemdata.cpp
   qgsdetaileditemdelegate.cpp
   qgsdetaileditemwidget.cpp
@@ -563,6 +564,7 @@ SET(QGIS_GUI_HDRS
   qgsdataitemguiproviderregistry.h
   qgsdatasourcemanagerdialog.h
   qgsdatasourceselectdialog.h
+  qgsnewdatabasetablenamewidget.h
   qgsdatumtransformdialog.h
   qgsdetaileditemdata.h
   qgsdetaileditemdelegate.h

src/gui/qgsnewdatabasetablenamewidget.cpp

@@ -0,0 +1,206 @@
+/***************************************************************************
+  qgsnewdatabasetablenamewidget.cpp - QgsNewDatabaseTableNameWidget
+
+ ---------------------
+ begin                : 9.3.2020
+ copyright            : (C) 2020 by Alessandro Pasotti
+ email                : elpaso at itopen dot it
+ ***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include <QTreeWidgetItemIterator>
+
+#include "qgsnewdatabasetablenamewidget.h"
+#include "qgsapplication.h"
+#include "qgsdataitemproviderregistry.h"
+#include "qgsdataitemprovider.h"
+
+QgsNewDatabaseTableNameWidget::QgsNewDatabaseTableNameWidget(
+  QgsBrowserGuiModel *browserModel,
+  const QStringList &providersFilter,
+  QWidget *parent )
+  : QWidget( parent )
+{
+
+
+  // Initalize the browser
+  if ( ! browserModel )
+  {
+    mBrowserModel = new QgsBrowserGuiModel( this );
+    mBrowserModel->initialize();
+  }
+  else
+  {
+    mBrowserModel = browserModel;
+    mBrowserModel->initialize();
+  }
+
+  setupUi( this );
+
+  QStringList hiddenProviders
+  {
+    QStringLiteral( "special:Favorites" ),
+    QStringLiteral( "special:Drives" ),
+    QStringLiteral( "special:Volumes" ),
+    QStringLiteral( "special:Home" ),
+    QStringLiteral( "special:ProjectHome" )
+  };
+
+  const auto providerList { QgsApplication::dataItemProviderRegistry()->providers() };
+  for ( const auto &provider : providerList )
+  {
+    if ( provider->capabilities() & QgsDataProvider::DataCapability::Database )
+    {
+      if ( ! providersFilter.isEmpty() && ! providersFilter.contains( provider->name() ) )
+      {
+        hiddenProviders.push_back( provider->name() );
+      }
+      else
+      {
+        mShownProviders.insert( provider->name() );
+      }
+    }
+    else
+    {
+      hiddenProviders.push_back( provider->name() );
+    }
+  }
+
+  mBrowserProxyModel.setBrowserModel( mBrowserModel );
+  mBrowserProxyModel.setDataItemProviderKeyFilter( hiddenProviders );
+  mBrowserProxyModel.setShowLayers( false );
+  mBrowserTreeView->setHeaderHidden( true );
+  mBrowserTreeView->setExpandsOnDoubleClick( false );
+  mBrowserTreeView->setModel( &mBrowserProxyModel );
+  mBrowserTreeView->setBrowserModel( mBrowserModel );
+
+  // Connections
+  connect( mNewTableName, &QLineEdit::textChanged, this, [ = ]
+  {
+    mTableName = mNewTableName->text();
+    emit tableNameChanged( mTableName );
+    validate();
+  } );
+
+  connect( mBrowserTreeView, &QgsBrowserTreeView::clicked, this, [ = ]( const QModelIndex & index )
+  {
+    if ( index.isValid() )
+    {
+      const QgsDataItem *dataItem( mBrowserProxyModel.dataItem( index ) );
+      if ( dataItem )
+      {
+        const QgsDataCollectionItem *collectionItem = qobject_cast<const QgsDataCollectionItem *>( dataItem );
+        if ( collectionItem )
+        {
+          if ( mShownProviders.contains( collectionItem->name() ) )
+          {
+            if ( mDataProviderName != collectionItem->name() )
+            {
+              mSchemaName.clear();
+              mDataProviderName = collectionItem->name();
+            }
+          }
+          else
+          {
+            mSchemaName = collectionItem->name();
+            emit schemaNameChanged( mSchemaName );
+          }
+          validate();
+        }
+      }
+    }
+  } );
+
+  mValidationResults->hide();
+
+}
+
+QString QgsNewDatabaseTableNameWidget::schema()
+{
+  return mSchemaName;
+}
+
+QString QgsNewDatabaseTableNameWidget::table()
+{
+  return mTableName;
+}
+
+QString QgsNewDatabaseTableNameWidget::dataItemProviderName()
+{
+  return mDataProviderName;
+}
+
+void QgsNewDatabaseTableNameWidget::validate()
+{
+  // Check table uniqueness
+  mIsValid = ! mDataProviderName.isEmpty() &&
+             mShownProviders.contains( mDataProviderName ) &&
+             ! mSchemaName.isEmpty() &&
+             ! mTableName.isEmpty() &&
+             ! tableNames( ).contains( mTableName );
+
+  mValidationError.clear();
+
+  if ( ! mIsValid )
+  {
+
+    if ( mTableName.isEmpty() )
+    {
+      mValidationError = tr( "Enter a unique name for the new table" );
+    }
+    else if ( mSchemaName.isEmpty() )
+    {
+      mValidationError = tr( "Select a database schema" );
+    }
+    else if ( tableNames( ).contains( mTableName ) )
+    {
+      mValidationError = tr( "A table named '%1' already exists" ).arg( mTableName );
+    }
+    else
+    {
+      mValidationError = tr( "Select a schema and enter a unique name for the new table" );
+    }
+  }
+  mValidationResults->setText( mValidationError );
+  mValidationResults->setVisible( ! mIsValid );
+  emit validationChanged( mIsValid );
+}
+
+QStringList QgsNewDatabaseTableNameWidget::tableNames()
+{
+  QStringList tableNames;
+  QModelIndex index { mBrowserTreeView->currentIndex() };
+  if ( index.isValid() )
+  {
+    for ( int row = 0; row < mBrowserProxyModel.rowCount( ); ++row )
+    {
+      // Column 1 contains the
+      index = mBrowserProxyModel.index( row, 1, index );
+      if ( index.isValid() )
+      {
+        const QgsDataItem *dataItem { mBrowserProxyModel.dataItem( index ) };
+        if ( dataItem )
+        {
+          tableNames.push_back( dataItem->name() );
+        }
+      }
+    }
+  }
+  return tableNames;
+}
+
+bool QgsNewDatabaseTableNameWidget::isValid() const
+{
+  return mIsValid;
+}
+
+QString QgsNewDatabaseTableNameWidget::validationError()
+{
+  return mValidationError;
+}

src/gui/qgsnewdatabasetablenamewidget.h

@@ -0,0 +1,124 @@
+/***************************************************************************
+  qgsnewdatabasetablenamewidget.h - QgsNewDatabaseTableNameWidget
+
+ ---------------------
+ begin                : 9.3.2020
+ copyright            : (C) 2020 by Alessandro Pasotti
+ email                : elpaso at itopen dot it
+ ***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+#ifndef QGSNEWDATABASETABLENAMEWIDGET_H
+#define QGSNEWDATABASETABLENAMEWIDGET_H
+
+
+#include "ui_qgsnewdatabasetablenamewidget.h"
+
+#include "qgis_gui.h"
+#include "qgsbrowserguimodel.h"
+#include "qgsbrowserproxymodel.h"
+
+#include <QWidget>
+
+/**
+ * \ingroup gui
+ * The QgsNewDatabaseTableNameWidget class embeds the browser view to
+ * select a DB schema and a new table name.
+ *
+ * The table name is validated for uniqueness and the selected
+ * data item provider, schema and table names can be retrieved with
+ * getters.
+ *
+ * \since QGIS 3.14
+ */
+class GUI_EXPORT QgsNewDatabaseTableNameWidget : public QWidget, private Ui::QgsNewDatabaseTableNameWidget
+{
+    Q_OBJECT
+
+  public:
+
+    /**
+     * Constructs a new QgsNewDatabaseTableNameWidget
+     *
+     * \param browserModel an existing browser model (typically from app), if NULL an instance will be created
+     * \param providersFilter optional white list of item provider names (not data providers!) that should be
+     *        shown in the widget, if not specified all providers data items with database capabilities will be shown
+     * \param parent optional parent for this widget
+     */
+    explicit QgsNewDatabaseTableNameWidget( QgsBrowserGuiModel *browserModel = nullptr,
+                                            const QStringList &providersFilter = QStringList(),
+                                            QWidget *parent = nullptr );
+
+    /**
+     * Returns the currently selected schema for the new table
+     */
+    QString schema();
+
+    /**
+     * Returns the current name of the new table
+     */
+    QString table();
+
+    /**
+     * Returns the currently selected data item provider name (which is NOT the data provider key!) for the new table
+     */
+    QString dataItemProviderName();
+
+    /**
+     * Returns TRUE if the widget contains a valid new table name
+     */
+    bool isValid() const;
+
+    /**
+     * Returns the validation error or an empty string is the widget status is valid
+     */
+    QString validationError();
+
+  signals:
+
+    /**
+     * This signal is emitted whenever the validation status of the widget changes.
+     *
+     * \param isValid TRUE if the current status of the widget is valid
+     */
+    void validationChanged( bool isValid );
+
+    /**
+      * This signal is emitted when the user selects a schema.
+      *
+      * \param schemaName the name of the selected schema
+      */
+    void schemaNameChanged( const QString &schemaName );
+
+    /**
+      * This signal is emitted when the user enters a table name
+      *
+      * \param tableName the name of the new table
+      */
+    void tableNameChanged( const QString &tableName );
+
+
+  private:
+
+    QgsBrowserProxyModel mBrowserProxyModel;
+    QgsBrowserGuiModel *mBrowserModel = nullptr;
+    void validate();
+    QStringList tableNames();
+    QString mDataProviderName;
+    QString mTableName;
+    QString mSchemaName;
+    QSet<QString> mShownProviders;
+    bool mIsValid = false;
+    QString mValidationError;
+
+    // For testing:
+    friend class TestQgsNewDatabaseTableNameWidget;
+
+};
+
+#endif // QGSNEWDATABASETABLENAMEWIDGET_H

src/ui/qgsnewdatabasetablenamewidget.ui

@@ -0,0 +1,130 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>QgsNewDatabaseTableNameWidget</class>
+ <widget class="QWidget" name="QgsNewDatabaseTableNameWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>700</width>
+    <height>629</height>
+   </rect>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <property name="spacing">
+    <number>4</number>
+   </property>
+   <property name="leftMargin">
+    <number>4</number>
+   </property>
+   <property name="topMargin">
+    <number>4</number>
+   </property>
+   <property name="rightMargin">
+    <number>4</number>
+   </property>
+   <property name="bottomMargin">
+    <number>4</number>
+   </property>
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout_2">
+     <property name="spacing">
+      <number>3</number>
+     </property>
+     <property name="leftMargin">
+      <number>0</number>
+     </property>
+     <property name="topMargin">
+      <number>0</number>
+     </property>
+     <property name="rightMargin">
+      <number>0</number>
+     </property>
+     <property name="bottomMargin">
+      <number>0</number>
+     </property>
+     <item>
+      <widget class="QgsBrowserTreeView" name="mBrowserTreeView"/>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>New table name</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLineEdit" name="mNewTableName">
+     <property name="text">
+      <string/>
+     </property>
+     <property name="placeholderText">
+      <string>name of the new table</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLabel" name="mValidationResults">
+     <property name="enabled">
+      <bool>true</bool>
+     </property>
+     <property name="text">
+      <string>Validation results</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+  <action name="mActionRefresh">
+   <property name="icon">
+    <iconset resource="../../images/images.qrc">
+     <normaloff>:/images/themes/default/mActionRefresh.svg</normaloff>:/images/themes/default/mActionRefresh.svg</iconset>
+   </property>
+   <property name="text">
+    <string>Refresh</string>
+   </property>
+  </action>
+  <action name="mActionShowFilter">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="icon">
+    <iconset resource="../../images/images.qrc">
+     <normaloff>:/images/themes/default/mActionFilter2.svg</normaloff>:/images/themes/default/mActionFilter2.svg</iconset>
+   </property>
+   <property name="text">
+    <string>Filter Browser</string>
+   </property>
+   <property name="iconText">
+    <string>Filter Browser</string>
+   </property>
+   <property name="toolTip">
+    <string>Filter Browser</string>
+   </property>
+  </action>
+  <action name="mActionCollapse">
+   <property name="icon">
+    <iconset resource="../../images/images.qrc">
+     <normaloff>:/images/themes/default/mActionCollapseTree.svg</normaloff>:/images/themes/default/mActionCollapseTree.svg</iconset>
+   </property>
+   <property name="text">
+    <string>Collapse All</string>
+   </property>
+   <property name="toolTip">
+    <string>Collapse All</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>QgsBrowserTreeView</class>
+   <extends>QTreeView</extends>
+   <header>qgsbrowsertreeview.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../../images/images.qrc"/>
+ </resources>
+ <connections/>
+</ui>

tests/src/gui/CMakeLists.txt

@@ -161,3 +161,4 @@ ADD_QGIS_TEST(relationreferencewidget testqgsrelationreferencewidget.cpp)
 ADD_QGIS_TEST(featurelistcombobox testqgsfeaturelistcombobox.cpp)
 ADD_QGIS_TEST(texteditwrapper testqgstexteditwrapper.cpp)
 ADD_QGIS_TEST(tableeditorwidget testqgstableeditor.cpp)
+ADD_QGIS_TEST(newdatabasetablewidget testqgsnewdatabasetablewidget.cpp)

tests/src/gui/testqgsnewdatabasetablewidget.cpp

@@ -0,0 +1,164 @@
+/***************************************************************************
+    testqgsfilefiledownloader.cpp
+     --------------------------------------
+    Date                 : 09.03.2020
+    Copyright            : (C) 2020 Alessandro Pasotti
+    Email                : elpaso at itopen dot it
+ ***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+
+#include "qgstest.h"
+#include <QObject>
+#include <QDialog>
+#include <QSignalSpy>
+
+#include "qgsnewdatabasetablenamewidget.h"
+#include "qgsprovidermetadata.h"
+#include "qgsproviderregistry.h"
+#include "qgsabstractproviderconnection.h"
+
+class TestQgsNewDatabaseTableNameWidget: public QObject
+{
+    Q_OBJECT
+  public:
+    TestQgsNewDatabaseTableNameWidget() = default;
+
+    void testWidget();
+
+  private slots:
+    void initTestCase(); // will be called before the first testfunction is executed.
+    void cleanupTestCase(); // will be called after the last testfunction was executed.
+    void init(); // will be called before each testfunction is executed.
+    void cleanup(); // will be called after every testfunction.
+
+    void testWidgetFilters();
+    void testWidgetSignals();
+
+};
+
+void TestQgsNewDatabaseTableNameWidget::initTestCase()
+{
+  QgsApplication::init();
+  QgsApplication::initQgis();
+  // Add some connections to test with
+  QgsProviderMetadata *md { QgsProviderRegistry::instance()->providerMetadata( QStringLiteral( "postgres" ) ) };
+  QgsAbstractProviderConnection *conn { md->createConnection( qgetenv( "QGIS_PGTEST_DB" ) ) };
+  md->saveConnection( conn, QStringLiteral( "PG_1" ) );
+  conn = md->createConnection( qgetenv( " QGIS_PGTEST_DB" ) );
+  md->saveConnection( conn, QStringLiteral( "PG_2" ) );
+}
+
+void TestQgsNewDatabaseTableNameWidget::cleanupTestCase()
+{
+  QgsApplication::exitQgis();
+}
+
+void TestQgsNewDatabaseTableNameWidget::init()
+{
+}
+
+void TestQgsNewDatabaseTableNameWidget::cleanup()
+{
+}
+
+void TestQgsNewDatabaseTableNameWidget::testWidgetFilters()
+{
+  std::unique_ptr<QgsNewDatabaseTableNameWidget> w { qgis::make_unique<QgsNewDatabaseTableNameWidget>( nullptr, QStringList{ "NOT_EXISTS" } ) };
+  QCOMPARE( w->mBrowserProxyModel.rowCount(), 0 );
+  std::unique_ptr<QgsNewDatabaseTableNameWidget> w2 { qgis::make_unique<QgsNewDatabaseTableNameWidget>( nullptr ) };
+  QVERIFY( w2->mBrowserProxyModel.rowCount() > 0 );
+  std::unique_ptr<QgsNewDatabaseTableNameWidget> w3 { qgis::make_unique<QgsNewDatabaseTableNameWidget>( nullptr, QStringList{ "PostGIS" } ) };
+  QVERIFY( w3->mBrowserProxyModel.rowCount() > 0 );
+}
+
+
+void TestQgsNewDatabaseTableNameWidget::testWidgetSignals()
+{
+  std::unique_ptr<QgsNewDatabaseTableNameWidget> w { qgis::make_unique<QgsNewDatabaseTableNameWidget>( nullptr, QStringList{ "PostGIS" } ) };
+
+  auto index = w->mBrowserModel->findPath( QStringLiteral( "pg:/PG_1" ) );
+  QVERIFY( index.isValid() );
+  w->mBrowserModel->dataItem( index )->populate( true );
+  w->mBrowserTreeView->expandAll();
+
+  QVERIFY( ! w->isValid() );
+
+  QSignalSpy validationSpy( w.get(), SIGNAL( validationChanged( bool ) ) );
+  QSignalSpy schemaSpy( w.get(), SIGNAL( schemaNameChanged( QString ) ) );
+  QSignalSpy tableSpy( w.get(), SIGNAL( tableNameChanged( QString ) ) );
+
+  index = w->mBrowserProxyModel.mapToSource( w->mBrowserProxyModel.index( 0, 0 ) );
+  QVERIFY( index.isValid() );
+  QCOMPARE( w->mBrowserModel->data( index, Qt::DisplayRole ).toString(), QString( "PostGIS" ) );
+  QRect rect = w->mBrowserTreeView->visualRect( w->mBrowserProxyModel.mapFromSource( index ) );
+  QVERIFY( rect.isValid() );
+  QTest::mouseClick( w->mBrowserTreeView->viewport(), Qt::LeftButton, 0, rect.topLeft() );
+
+  QVERIFY( ! w->isValid() );
+
+  QCOMPARE( validationSpy.count(), 1 );
+  auto arguments = validationSpy.takeLast();
+  QCOMPARE( arguments.at( 0 ).toBool(), false );
+  QCOMPARE( schemaSpy.count(), 0 );
+
+  // Find qgis_test schema item
+  index = w->mBrowserModel->findPath( QStringLiteral( "pg:/PG_1/qgis_test" ), Qt::MatchFlag::MatchStartsWith );
+  QVERIFY( index.isValid() );
+  w->mBrowserTreeView->scrollTo( w->mBrowserProxyModel.mapFromSource( index ) );
+  rect = w->mBrowserTreeView->visualRect( w->mBrowserProxyModel.mapFromSource( index ) );
+  QVERIFY( rect.isValid() );
+  QTest::mouseClick( w->mBrowserTreeView->viewport(), Qt::LeftButton, 0, rect.center() );
+  QCOMPARE( validationSpy.count(), 1 );
+  arguments = validationSpy.takeLast();
+  QCOMPARE( arguments.at( 0 ).toBool(), false );
+  QCOMPARE( schemaSpy.count(), 1 );
+  arguments = schemaSpy.takeLast();
+  QCOMPARE( arguments.at( 0 ).toString(), QString( "qgis_test" ) );
+
+  w->mNewTableName->setText( QStringLiteral( "someNewTableData" ) );
+  QCOMPARE( tableSpy.count(), 1 );
+  arguments = tableSpy.takeLast();
+  QCOMPARE( arguments.at( 0 ).toString(), QString( "someNewTableData" ) );
+
+  QVERIFY( w->isValid() );
+
+  // Test unique
+  w->mNewTableName->setText( QStringLiteral( "someData" ) );
+  QCOMPARE( tableSpy.count(), 1 );
+  arguments = tableSpy.takeLast();
+  QCOMPARE( arguments.at( 0 ).toString(), QString( "someData" ) );
+
+  QVERIFY( ! w->isValid() );
+
+  // Test getters
+  QCOMPARE( w->table(), QString( "someData" ) );
+  QCOMPARE( w->schema(), QString( "qgis_test" ) );
+  QCOMPARE( w->dataItemProviderName(), QString( "postgres" ) );
+
+}
+
+
+void TestQgsNewDatabaseTableNameWidget::testWidget()
+{
+  QDialog d;
+  QVBoxLayout layout;
+  d.setLayout( &layout );
+  std::unique_ptr<QgsNewDatabaseTableNameWidget> w { qgis::make_unique<QgsNewDatabaseTableNameWidget>( nullptr, QStringList{ "PostGIS" } ) };
+  d.layout()->addWidget( w.get() );
+
+  d.exec();
+
+}
+
+
+QGSTEST_MAIN( TestQgsNewDatabaseTableNameWidget )
+#include "testqgsnewdatabasetablewidget.moc"
+
+