Allow QWebView for photo widget

Fix #11306

src/gui/editorwidgets/qgsphotowidgetwrapper.cpp

@@ -38,6 +38,11 @@ void QgsPhotoWidgetWrapper::selectFileName()
 
 void QgsPhotoWidgetWrapper::loadPixmap( const QString &fileName )
 {
+  if ( mWebView )
+  {
+    mWebView->setUrl( fileName );
+  }
+
   QPixmap pm( fileName );
   if ( !pm.isNull() && mPhotoLabel )
   {
@@ -53,7 +58,6 @@ void QgsPhotoWidgetWrapper::loadPixmap( const QString &fileName )
 
     pm = pm.scaled( size, Qt::KeepAspectRatio, Qt::SmoothTransformation );
 
-
     mPhotoLabel->setPixmap( pm );
     mPhotoLabel->setMinimumSize( size );
   }
@@ -98,9 +102,17 @@ void QgsPhotoWidgetWrapper::initWidget( QWidget* editor )
   QWidget* container;
 
   mLineEdit = qobject_cast<QLineEdit*>( editor );
+  mWebView = qobject_cast<QWebView*>( editor );
 
   if ( mLineEdit )
-    container = qobject_cast<QWidget*>( mLineEdit->parent() );
+  {
+    container = mLineEdit->parentWidget();
+  }
+  else if ( mWebView )
+  {
+    container = mWebView->parentWidget();
+    mLineEdit = container->findChild<QLineEdit*>();
+  }
   else
   {
     container = editor;
@@ -141,6 +153,10 @@ void QgsPhotoWidgetWrapper::setValue( const QVariant& value )
     else
       mLineEdit->setText( value.toString() );
   }
+  else
+  {
+    loadPixmap( value.toString() );
+  }
 }
 
 void QgsPhotoWidgetWrapper::setEnabled( bool enabled )

src/gui/editorwidgets/qgsphotowidgetwrapper.h

@@ -21,6 +21,7 @@
 #include <QLabel>
 #include <QPushButton>
 #include <QLineEdit>
+#include <QWebView>
 
 
 /**
@@ -60,6 +61,8 @@ class GUI_EXPORT QgsPhotoWidgetWrapper : public QgsEditorWidgetWrapper
   private:
     //! This label is used as a container to display the picture
     QLabel* mPhotoLabel;
+    //! This webview is used as a container to display the picture
+    QWebView* mWebView;
     //! The line edit containing the path to the picture
     QLineEdit* mLineEdit;
     //! The button to open the file chooser dialog