/*******************************************************************************
 * Copyright (c) 2005, 2012 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.bpel.ui.properties;

import org.eclipse.bpel.common.ui.details.IDetailsAreaConstants;
import org.eclipse.bpel.common.ui.flatui.FlatFormAttachment;
import org.eclipse.bpel.common.ui.flatui.FlatFormData;
import org.eclipse.bpel.common.ui.flatui.FlatFormLayout;
import org.eclipse.bpel.model.BPELPackage;
import org.eclipse.bpel.model.EventHandler;
import org.eclipse.bpel.model.OnAlarm;
import org.eclipse.bpel.ui.IBPELUIConstants;
import org.eclipse.bpel.ui.IHelpContextIds;
import org.eclipse.bpel.ui.Messages;
import org.eclipse.bpel.ui.expressions.IEditorConstants;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.PlatformUI;

/**
 * @author IBM Original contribution.
 * 
 * @author Michal Chmielewski (michal.chmielewski@oracle.com)
 * @date Jul 16, 2007
 *
 */
public class RepeatingAlarmConditionSection extends ExpressionSection {

	protected Label label1, label2, label3;

	protected Button createDefaultButton;

	@Override
	protected String getExpressionType() {
		return IEditorConstants.ET_DURATION;
	}

	@Override
	protected Composite createNoEditorWidgets(Composite composite) {

		Composite section = fWidgetFactory.createComposite(composite);
		section.setLayout(new FlatFormLayout());

		FlatFormData ffdata;

		label1 = fWidgetFactory
				.createLabel(
						section,
						Messages.RepeatingAlarmConditionSection_No_condition_specified_1);
		ffdata = new FlatFormData();
		ffdata.left = new FlatFormAttachment(0, 0);
		ffdata.top = new FlatFormAttachment(0, 0);
		ffdata.right = new FlatFormAttachment(100, 0);
		label1.setLayoutData(ffdata);

		label2 = fWidgetFactory.createLabel(section,
				Messages.RepeatingAlarmConditionSection_Choose_type_text_2);
		ffdata = new FlatFormData();
		ffdata.left = new FlatFormAttachment(0, 0);
		ffdata.top = new FlatFormAttachment(label1,
				IDetailsAreaConstants.VSPACE);
		ffdata.right = new FlatFormAttachment(100, 0);
		label2.setLayoutData(ffdata);

		label3 = fWidgetFactory
				.createLabel(
						section,
						Messages.RepeatingAlarmConditionSection_Not_supported_in_Pick_text_3);
		ffdata = new FlatFormData();
		ffdata.left = new FlatFormAttachment(0, 0);
		ffdata.top = new FlatFormAttachment(0, 0);
		ffdata.right = new FlatFormAttachment(100, 0);
		label3.setLayoutData(ffdata);

		createDefaultButton = fWidgetFactory
				.createButton(
						section,
						Messages.RepeatingAlarmConditionSection_Create_a_New_Repeat_Condition_3,
						SWT.PUSH);
		ffdata = new FlatFormData();
		ffdata.left = new FlatFormAttachment(0, 0);
		ffdata.top = new FlatFormAttachment(label2,
				IDetailsAreaConstants.VSPACE);
		createDefaultButton.setLayoutData(ffdata);

		createDefaultButton.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				doChooseExpressionLanguage(SAME_AS_PARENT);
			}

			public void widgetDefaultSelected(SelectionEvent e) {
			}
		});
		return section;
	}

	@Override
	protected void basicSetInput(EObject newInput) {		
		super.basicSetInput(newInput);
				
		boolean enable = (newInput.eContainer() instanceof EventHandler);
		expressionLanguageViewer.getControl().setEnabled(enable);	
		
		expressionLanguageViewer.getControl().setEnabled(enable);
		label1.setVisible(enable);
		label2.setVisible(enable);
		label3.setVisible(!enable);
		createDefaultButton.setVisible(enable);
		createDefaultButton.setEnabled(enable);		
	}

	@Override
	protected EStructuralFeature getStructuralFeature(EObject object) {
		if (object instanceof OnAlarm) {
			return BPELPackage.eINSTANCE.getOnAlarm_RepeatEvery();
		}
		return super.getStructuralFeature(object);
	}

	
	@Override	
	protected boolean isValidClientUseType(String useType) {
		return IBPELUIConstants.USE_TYPE_DURATION_CONDITION.equals(useType);
	}

	@Override
	protected void createClient(Composite parent) {
		super.createClient(parent);
		PlatformUI.getWorkbench().getHelpSystem().setHelp(fParentComposite,
				IHelpContextIds.PROPERTY_PAGE_REPEAT_ALARM);
	}
}