More contexts for expression builder dialogs

src/app/qgsattributeactiondialog.cpp

@@ -181,7 +181,12 @@ void QgsAttributeActionDialog::insertExpression()
     selText = selText.mid( 2, selText.size() - 4 );
 
   // display the expression builder
-  QgsExpressionBuilderDialog dlg( mActions->layer(), selText, this );
+  QgsExpressionContext context;
+  context << QgsExpressionContextUtils::globalScope()
+  << QgsExpressionContextUtils::projectScope()
+  << QgsExpressionContextUtils::layerScope( mActions->layer() );
+
+  QgsExpressionBuilderDialog dlg( mActions->layer(), selText, this, "generic", context );
   dlg.setWindowTitle( tr( "Insert expression" ) );
 
   QgsDistanceArea myDa;

src/app/qgsattributetabledialog.cpp

@@ -460,7 +460,12 @@ void QgsAttributeTableDialog::filterColumnChanged( QObject* filterAction )
 void QgsAttributeTableDialog::filterExpressionBuilder()
 {
   // Show expression builder
-  QgsExpressionBuilderDialog dlg( mLayer, mFilterQuery->text(), this );
+  QgsExpressionContext context;
+  context << QgsExpressionContextUtils::globalScope()
+  << QgsExpressionContextUtils::projectScope()
+  << QgsExpressionContextUtils::layerScope( mLayer );
+
+  QgsExpressionBuilderDialog dlg( mLayer, mFilterQuery->text(), this, "generic", context );
   dlg.setWindowTitle( tr( "Expression based filter" ) );
 
   QgsDistanceArea myDa;

src/app/qgsdiagramproperties.cpp

@@ -776,7 +776,13 @@ void QgsDiagramProperties::showAddAttributeExpressionDialog()
   {
     expression = selections[0]->text( 0 );
   }
-  QgsExpressionBuilderDialog dlg( mLayer, expression, this );
+
+  QgsExpressionContext context;
+  context << QgsExpressionContextUtils::globalScope()
+  << QgsExpressionContextUtils::projectScope()
+  << QgsExpressionContextUtils::layerScope( mLayer );
+
+  QgsExpressionBuilderDialog dlg( mLayer, expression, this, "generic", context );
   dlg.setWindowTitle( tr( "Expression based attribute" ) );
 
   QgsDistanceArea myDa;

src/app/qgsfieldsproperties.cpp

@@ -669,7 +669,11 @@ void QgsFieldsProperties::updateExpression()
 
   const QString exp = mLayer->expressionField( index );
 
-  QgsExpressionBuilderDialog dlg( mLayer, exp );
+  QgsExpressionContext context;
+  context << QgsExpressionContextUtils::globalScope()
+  << QgsExpressionContextUtils::projectScope();
+
+  QgsExpressionBuilderDialog dlg( mLayer, exp, 0, "generic", context );
 
   if ( dlg.exec() )
   {

src/app/qgsvectorlayerproperties.cpp

@@ -345,7 +345,12 @@ void QgsVectorLayerProperties::insertExpression()
     selText = selText.mid( 2, selText.size() - 4 );
 
   // display the expression builder
-  QgsExpressionBuilderDialog dlg( layer, selText.replace( QChar::ParagraphSeparator, '\n' ), this );
+  QgsExpressionContext context;
+  context << QgsExpressionContextUtils::globalScope()
+  << QgsExpressionContextUtils::projectScope()
+  << QgsExpressionContextUtils::layerScope( layer );
+
+  QgsExpressionBuilderDialog dlg( layer, selText.replace( QChar::ParagraphSeparator, '\n' ), this, "generic", context );
   dlg.setWindowTitle( tr( "Insert expression" ) );
   if ( dlg.exec() == QDialog::Accepted )
   {

src/gui/attributetable/qgsdualview.cpp

@@ -291,7 +291,12 @@ void QgsDualView::openConditionalStyles()
 void QgsDualView::previewExpressionBuilder()
 {
   // Show expression builder
-  QgsExpressionBuilderDialog dlg( mLayerCache->layer(), mFeatureList->displayExpression(), this );
+  QgsExpressionContext context;
+  context << QgsExpressionContextUtils::globalScope()
+  << QgsExpressionContextUtils::projectScope()
+  << QgsExpressionContextUtils::layerScope( mLayerCache->layer() );
+
+  QgsExpressionBuilderDialog dlg( mLayerCache->layer(), mFeatureList->displayExpression(), this, "generic", context );
   dlg.setWindowTitle( tr( "Expression based preview" ) );
   dlg.setExpressionText( mFeatureList->displayExpression() );
 

src/gui/editorwidgets/qgsvaluerelationconfigdlg.cpp

@@ -63,7 +63,12 @@ void QgsValueRelationConfigDlg::editExpression()
   if ( !vl )
     return;
 
-  QgsExpressionBuilderDialog dlg( vl, mFilterExpression->toPlainText(), this );
+  QgsExpressionContext context;
+  context << QgsExpressionContextUtils::globalScope()
+  << QgsExpressionContextUtils::projectScope()
+  << QgsExpressionContextUtils::layerScope( vl );
+
+  QgsExpressionBuilderDialog dlg( vl, mFilterExpression->toPlainText(), this, "generic", context );
   dlg.setWindowTitle( tr( "Edit filter expression" ) );
 
   if ( dlg.exec() == QDialog::Accepted )

src/gui/symbology-ng/qgsrulebasedrendererv2widget.cpp

@@ -627,7 +627,12 @@ QgsRendererRulePropsDialog::~QgsRendererRulePropsDialog()
 
 void QgsRendererRulePropsDialog::buildExpression()
 {
-  QgsExpressionBuilderDialog dlg( mLayer, editFilter->text(), this );
+  QgsExpressionContext context;
+  context << QgsExpressionContextUtils::globalScope()
+  << QgsExpressionContextUtils::projectScope()
+  << QgsExpressionContextUtils::layerScope( mLayer );
+
+  QgsExpressionBuilderDialog dlg( mLayer, editFilter->text(), this, "generic", context );
 
   if ( dlg.exec() )
     editFilter->setText( dlg.expressionText() );