update container visibilty on mode change

Author: signedav

src/gui/qgsattributeform.cpp

@@ -77,9 +77,9 @@ QgsAttributeForm::QgsAttributeForm( QgsVectorLayer *vl, const QgsFeature &featur
   connect( vl, &QgsVectorLayer::beforeAddingExpressionField, this, &QgsAttributeForm::preventFeatureRefresh );
   connect( vl, &QgsVectorLayer::beforeRemovingExpressionField, this, &QgsAttributeForm::preventFeatureRefresh );
   connect( vl, &QgsVectorLayer::selectionChanged, this, &QgsAttributeForm::layerSelectionChanged );
+  connect( this, &QgsAttributeForm::modeChanged, this, &QgsAttributeForm::updateContainersVisibility );
 
-  // constraints management
-  updateAllConstraints();
+  updateContainersVisibility();
 }
 
 QgsAttributeForm::~QgsAttributeForm()
@@ -823,6 +823,7 @@ void QgsAttributeForm::updateConstraints( QgsEditorWidgetWrapper *eww )
     synchronizeEnabledState();
 
     mExpressionContext.setFeature( ft );
+
     mExpressionContext << QgsExpressionContextUtils::formScope( ft, modeString( mMode ) );
 
     // Recheck visibility for all containers which are controlled by this value
@@ -834,6 +835,22 @@ void QgsAttributeForm::updateConstraints( QgsEditorWidgetWrapper *eww )
   }
 }
 
+void QgsAttributeForm::updateContainersVisibility()
+{
+
+  mExpressionContext << QgsExpressionContextUtils::formScope( QgsFeature( mFeature ), modeString( mMode ) );
+
+  const QVector<ContainerInformation *> infos = mContainerVisibilityInformation;
+
+  for ( ContainerInformation *info : infos )
+  {
+    info->apply( &mExpressionContext );
+  }
+
+  //and update the constraints
+  updateAllConstraints();
+}
+
 void QgsAttributeForm::updateConstraint( const QgsFeature &ft, QgsEditorWidgetWrapper *eww )
 {
   QgsFieldConstraints::ConstraintOrigin constraintOrigin = mLayer->isEditable() ? QgsFieldConstraints::ConstraintOriginNotSet : QgsFieldConstraints::ConstraintOriginLayer;

src/gui/qgsattributeform.h

@@ -364,6 +364,7 @@ class GUI_EXPORT QgsAttributeForm : public QWidget
     //! constraints management
     void updateAllConstraints();
     void updateConstraints( QgsEditorWidgetWrapper *w );
+    void updateContainersVisibility();
     void updateConstraint( const QgsFeature &ft, QgsEditorWidgetWrapper *eww );
     bool currentFormFeature( QgsFeature &feature );
     bool currentFormValidConstraints( QStringList &invalidFields, QStringList &descriptions );