Provider source widgets can be used for vector layers

src/gui/vector/qgsvectorlayerproperties.cpp

@@ -68,6 +68,8 @@
 #include "qgsexpressioncontextutils.h"
 #include "qgsmaskingwidget.h"
 #include "qgsvectorlayertemporalpropertieswidget.h"
+#include "qgsprovidersourcewidgetproviderregistry.h"
+#include "qgsprovidersourcewidget.h"
 
 #include "layertree/qgslayertreelayer.h"
 #include "qgslayertree.h"
@@ -143,6 +145,8 @@ QgsVectorLayerProperties::QgsVectorLayerProperties(
   }
   connect( mActionSaveStyle, &QAction::triggered, this, &QgsVectorLayerProperties::saveStyleAs );
 
+  mSourceGroupBox->hide();
+
   menuStyle->addSeparator();
   menuStyle->addAction( tr( "Save as Default" ), this, &QgsVectorLayerProperties::saveDefaultStyle_clicked );
   menuStyle->addAction( tr( "Restore Default" ), this, &QgsVectorLayerProperties::loadDefaultStyle_clicked );
@@ -490,6 +494,27 @@ void QgsVectorLayerProperties::insertFieldOrExpression()
 // in raster props, this method is called sync()
 void QgsVectorLayerProperties::syncToLayer()
 {
+  if ( !mSourceWidget )
+  {
+    mSourceWidget = QgsGui::sourceWidgetProviderRegistry()->createWidget( mLayer );
+    if ( mSourceWidget )
+    {
+      QHBoxLayout *layout = new QHBoxLayout();
+      layout->addWidget( mSourceWidget );
+      mSourceGroupBox->setLayout( layout );
+      mSourceGroupBox->show();
+
+      connect( mSourceWidget, &QgsProviderSourceWidget::validChanged, this, [ = ]( bool isValid )
+      {
+        buttonBox->button( QDialogButtonBox::Apply )->setEnabled( isValid );
+        buttonBox->button( QDialogButtonBox::Ok )->setEnabled( isValid );
+      } );
+    }
+  }
+
+  if ( mSourceWidget )
+    mSourceWidget->setSourceUri( mLayer->source() );
+
   // populate the general information
   mLayerOrigNameLineEdit->setText( mLayer->name() );
   txtDisplayName->setText( mLayer->name() );
@@ -605,6 +630,15 @@ void QgsVectorLayerProperties::syncToLayer()
 
 void QgsVectorLayerProperties::apply()
 {
+  if ( mSourceWidget )
+  {
+    const QString newSource = mSourceWidget->sourceUri();
+    if ( newSource != mLayer->source() )
+    {
+      mLayer->setDataSource( newSource, mLayer->name(), mLayer->providerType(), QgsDataProvider::ProviderOptions() );
+    }
+  }
+
   if ( labelingDialog )
   {
     labelingDialog->writeSettingsToLayer();

src/gui/vector/qgsvectorlayerproperties.h

@@ -50,6 +50,7 @@ class QgsMapLayerComboBox;
 class QgsDoubleSpinBox;
 class QgsMaskingWidget;
 class QgsVectorLayerTemporalPropertiesWidget;
+class QgsProviderSourceWidget;
 
 class GUI_EXPORT QgsVectorLayerProperties : public QgsOptionsDialogBase, private Ui::QgsVectorLayerPropertiesBase, private QgsExpressionContextGenerator
 {
@@ -246,6 +247,8 @@ class GUI_EXPORT QgsVectorLayerProperties : public QgsOptionsDialogBase, private
 
     QgsVectorLayerTemporalPropertiesWidget *mTemporalWidget = nullptr;
 
+    QgsProviderSourceWidget *mSourceWidget = nullptr;
+
   private slots:
     void openPanel( QgsPanelWidget *panel );
 

src/ui/qgsvectorlayerpropertiesbase.ui

@@ -603,6 +603,13 @@ border-radius: 2px;</string>
                  </layout>
                 </widget>
                </item>
+               <item>
+                <widget class="QgsCollapsibleGroupBox" name="mSourceGroupBox">
+                 <property name="title">
+                  <string>Layer Source</string>
+                 </property>
+                </widget>
+               </item>
                <item>
                 <widget class="QgsCollapsibleGroupBox" name="mGeomGroupBox">
                  <property name="focusPolicy">
@@ -2559,6 +2566,11 @@ border-radius: 2px;</string>
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>QgsFilterLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>qgsfilterlineedit.h</header>
+  </customwidget>
   <customwidget>
    <class>QgsDoubleSpinBox</class>
    <extends>QDoubleSpinBox</extends>
@@ -2570,11 +2582,6 @@ border-radius: 2px;</string>
    <header>qgsscrollarea.h</header>
    <container>1</container>
   </customwidget>
-  <customwidget>
-   <class>QgsFilterLineEdit</class>
-   <extends>QLineEdit</extends>
-   <header>qgsfilterlineedit.h</header>
-  </customwidget>
   <customwidget>
    <class>QgsCollapsibleGroupBox</class>
    <extends>QGroupBox</extends>