package org.activiti.designer.property;
import org.activiti.designer.util.eclipse.ActivitiUiUtil;
import org.activiti.designer.util.property.ActivitiPropertySection;
import org.eclipse.bpmn2.Bpmn2Factory;
import org.eclipse.bpmn2.FormalExpression;
import org.eclipse.bpmn2.SequenceFlow;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.services.Graphiti;
import org.eclipse.graphiti.ui.editor.DiagramEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.views.properties.tabbed.ITabbedPropertyConstants;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory;
public class PropertySequenceFlowSection extends ActivitiPropertySection implements ITabbedPropertyConstants {
private Text conditionExpressionText;
@Override
public void createControls(Composite parent, TabbedPropertySheetPage tabbedPropertySheetPage) {
super.createControls(parent, tabbedPropertySheetPage);
TabbedPropertySheetWidgetFactory factory = getWidgetFactory();
Composite composite = factory.createFlatFormComposite(parent);
FormData data;
conditionExpressionText = factory.createText(composite, "", SWT.MULTI | SWT.BORDER | SWT.WRAP | SWT.V_SCROLL); //$NON-NLS-1$
data = new FormData(SWT.DEFAULT, 100);
data.left = new FormAttachment(0, 120);
data.right = new FormAttachment(100, 0);
data.top = new FormAttachment(0, VSPACE);
conditionExpressionText.setLayoutData(data);
conditionExpressionText.addFocusListener(listener);
CLabel scriptLabel = factory.createCLabel(composite, "Condition:"); //$NON-NLS-1$
data = new FormData();
data.left = new FormAttachment(0, 0);
data.right = new FormAttachment(conditionExpressionText, -HSPACE);
data.top = new FormAttachment(conditionExpressionText, 0, SWT.TOP);
scriptLabel.setLayoutData(data);
}
@Override
public void refresh() {
PictogramElement pe = getSelectedPictogramElement();
if (pe != null) {
Object bo = Graphiti.getLinkService().getBusinessObjectForLinkedPictogramElement(pe);
// the filter assured, that it is a EClass
if (bo == null)
return;
SequenceFlow sequenceFlow = ((SequenceFlow) bo);
if(sequenceFlow.getConditionExpression() != null) {
conditionExpressionText.removeFocusListener(listener);
String condition = sequenceFlow.getConditionExpression().getBody();
conditionExpressionText.setText(condition);
conditionExpressionText.addFocusListener(listener);
} else {
conditionExpressionText.setText("");
}
}
}
private FocusListener listener = new FocusListener() {
public void focusGained(final FocusEvent e) {
}
public void focusLost(final FocusEvent e) {
PictogramElement pe = getSelectedPictogramElement();
if (pe != null) {
Object bo = Graphiti.getLinkService().getBusinessObjectForLinkedPictogramElement(pe);
if (bo instanceof SequenceFlow) {
DiagramEditor diagramEditor = (DiagramEditor) getDiagramEditor();
TransactionalEditingDomain editingDomain = diagramEditor.getEditingDomain();
ActivitiUiUtil.runModelChange(new Runnable() {
public void run() {
Object bo = Graphiti.getLinkService().getBusinessObjectForLinkedPictogramElement(getSelectedPictogramElement());
if (bo == null) {
return;
}
if (bo instanceof SequenceFlow == false) {
return;
}
SequenceFlow sequenceFlow = (SequenceFlow) bo;
String condition = conditionExpressionText.getText();
if (condition != null && condition.length() > 0) {
FormalExpression expression = sequenceFlow.getConditionExpression();
if(expression == null) {
expression = Bpmn2Factory.eINSTANCE.createFormalExpression();
expression.setId(sequenceFlow.getId() + "_condition");
sequenceFlow.setConditionExpression(expression);
}
expression.setBody(condition);
} else {
FormalExpression expression = sequenceFlow.getConditionExpression();
if(expression != null) {
sequenceFlow.setConditionExpression(null);
}
}
}
}, editingDomain, "Model Update");
}
}
}
};
}