Java tutorial
/** * Copyright (C) 2010 BonitaSoft S.A. * BonitaSoft, 31 rue Gustave Eiffel - 38000 Grenoble * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2.0 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.bonitasoft.studio.properties.form.sections.actions.contributions; import org.bonitasoft.studio.common.ExpressionConstants; import org.bonitasoft.studio.common.emf.tools.ModelHelper; import org.bonitasoft.studio.common.properties.ExtensibleGridPropertySection; import org.bonitasoft.studio.common.properties.IExtensibleGridPropertySectionContribution; import org.bonitasoft.studio.data.provider.DataExpressionNatureProviderForFormOutput; import org.bonitasoft.studio.expression.editor.filter.AvailableExpressionTypeFilter; import org.bonitasoft.studio.expression.editor.operation.OperationViewer; import org.bonitasoft.studio.form.properties.i18n.Messages; import org.bonitasoft.studio.model.expression.Expression; import org.bonitasoft.studio.model.expression.ExpressionFactory; import org.bonitasoft.studio.model.expression.Operation; import org.bonitasoft.studio.model.expression.Operator; import org.bonitasoft.studio.model.form.FileWidget; import org.bonitasoft.studio.model.form.Form; import org.bonitasoft.studio.model.form.FormField; import org.bonitasoft.studio.model.form.FormPackage; import org.bonitasoft.studio.model.form.ViewForm; import org.bonitasoft.studio.model.form.Widget; import org.eclipse.core.databinding.UpdateValueStrategy; import org.eclipse.core.databinding.conversion.Converter; import org.eclipse.emf.databinding.EMFDataBindingContext; import org.eclipse.emf.databinding.edit.EMFEditObservables; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.edit.command.SetCommand; import org.eclipse.emf.transaction.TransactionalEditingDomain; import org.eclipse.jface.databinding.swt.SWTObservables; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.ISelection; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory; /** * @author Baptiste Mesta * @author Aurelien Pupier - allow to create a data from here */ public class OutputSectionContribution implements IExtensibleGridPropertySectionContribution { protected Widget element; protected TransactionalEditingDomain editingDomain; protected EMFDataBindingContext dataBinding; private OperationViewer operationViewer; public void createControl(Composite composite, TabbedPropertySheetWidgetFactory widgetFactory, ExtensibleGridPropertySection extensibleGridPropertySection) { composite.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).create()); composite.setLayout(GridLayoutFactory.fillDefaults().numColumns(1).create()); AvailableExpressionTypeFilter expressionFilter = new AvailableExpressionTypeFilter( new String[] { ExpressionConstants.CONSTANT_TYPE, ExpressionConstants.VARIABLE_TYPE, ExpressionConstants.SCRIPT_TYPE, ExpressionConstants.PARAMETER_TYPE, ExpressionConstants.FORM_FIELD_TYPE, ExpressionConstants.DOCUMENT_TYPE }); AvailableExpressionTypeFilter storageExpressionFilter = new AvailableExpressionTypeFilter( new String[] { ExpressionConstants.VARIABLE_TYPE, ExpressionConstants.DOCUMENT_REF_TYPE }); operationViewer = new OperationViewer(composite, widgetFactory, getEditingDomain(), expressionFilter, storageExpressionFilter); operationViewer.setStorageExpressionNatureProvider(new DataExpressionNatureProviderForFormOutput()); operationViewer.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).create()); bindWidgets(); } protected TransactionalEditingDomain getEditingDomain() { return editingDomain; } protected void bindWidgets() { if (operationViewer != null && !operationViewer.isDisposed()) { if (dataBinding != null) { dataBinding.dispose(); } dataBinding = new EMFDataBindingContext(); operationViewer.setContext(dataBinding); Operation action = element.getAction(); if (action == null) { action = ExpressionFactory.eINSTANCE.createOperation(); Operator op = ExpressionFactory.eINSTANCE.createOperator(); op.setType(ExpressionConstants.ASSIGNMENT_OPERATOR); op.setExpression("="); action.setOperator(op); Expression variableExp = ExpressionFactory.eINSTANCE.createExpression(); Expression actionExp = ExpressionFactory.eINSTANCE.createExpression(); action.setLeftOperand(variableExp); action.setRightOperand(actionExp); editingDomain.getCommandStack().execute( SetCommand.create(editingDomain, element, FormPackage.Literals.WIDGET__ACTION, action)); } operationViewer.setEditingDomain(getEditingDomain()); operationViewer.setEObject(element); UpdateValueStrategy strategy = new UpdateValueStrategy(); strategy.setConverter(new Converter(Boolean.class, Boolean.class) { public Object convert(Object fromObject) { return !((Boolean) fromObject).booleanValue(); } }); dataBinding.bindValue( SWTObservables.observeVisible( ExtensibleGridPropertySection.getLabelCompositeOf(operationViewer.getParent())), EMFEditObservables.observeValue(getEditingDomain(), element, FormPackage.Literals.WIDGET__READ_ONLY), strategy, strategy); dataBinding.bindValue( SWTObservables.observeVisible(operationViewer.getParent()), EMFEditObservables .observeValue(getEditingDomain(), element, FormPackage.Literals.WIDGET__READ_ONLY), strategy, strategy); if (element instanceof FileWidget) { dataBinding.bindValue( SWTObservables.observeVisible( ExtensibleGridPropertySection.getLabelCompositeOf(operationViewer.getParent())), EMFEditObservables.observeValue(getEditingDomain(), element, FormPackage.Literals.FILE_WIDGET__DOWNLOAD_ONLY), strategy, strategy); dataBinding.bindValue(SWTObservables.observeVisible(operationViewer.getParent()), EMFEditObservables .observeValue(getEditingDomain(), element, FormPackage.Literals.FILE_WIDGET__DOWNLOAD_ONLY), strategy, strategy); } } } public void dispose() { if (dataBinding != null) { dataBinding.dispose(); } if (operationViewer != null) { operationViewer.dispose(); } } public String getLabel() { return Messages.outputOperation; } public boolean isRelevantFor(EObject eObject) { if (eObject instanceof FormField && !ModelHelper.isInDuplicatedGrp(eObject)) { Form form = ModelHelper.getForm((Widget) eObject); return !(form instanceof ViewForm); } else { return false; } } public void setEObject(EObject object) { element = (Widget) object; } public void setEditingDomain(TransactionalEditingDomain editingDomain) { this.editingDomain = editingDomain; } public void setSelection(ISelection selection) { } public void refresh() { } }