/*******************************************************************************
 * Copyright (c) 2016, 2017 vogella GmbH 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:
 * Simon Scholz <simon.scholz@vogella.com> - initial API and implementation
 * Olivier Prouvost <olivier.prouvost@opcoach.com> - Bug 412567
 ******************************************************************************/
package org.eclipse.e4.tools.emf.ui.internal.common.component;

import javax.inject.Inject;

import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.observable.value.WritableValue;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.e4.tools.emf.ui.common.component.AbstractComponentEditor;
import org.eclipse.e4.tools.emf.ui.internal.ResourceProvider;
import org.eclipse.e4.ui.model.application.impl.ApplicationPackageImpl;
import org.eclipse.e4.ui.model.application.ui.MImperativeExpression;
import org.eclipse.e4.ui.model.application.ui.impl.UiPackageImpl;
import org.eclipse.emf.databinding.EMFDataBindingContext;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;

public class ImperativeExpressionEditor extends AbstractComponentEditor {
	private Composite composite;
	private EMFDataBindingContext context;

	@Inject
	IEclipseContext eclipseContext;

	@Inject
	public ImperativeExpressionEditor() {
		super();
	}

	@Override
	public Image getImage(Object element) {
		return getImage(element, ResourceProvider.IMG_Obj16_class_obj);
	}

	@Override
	public String getLabel(Object element) {
		return Messages.ImperativeExpressionEditor_TreeLabel;
	}

	@Override
	public String getDetailLabel(Object element) {
		String contributionURI = ((MImperativeExpression) element).getContributionURI();
		if (contributionURI != null && contributionURI.trim().length() > 0) {
			int lastIndexOf = contributionURI.lastIndexOf("."); //$NON-NLS-1$
			if (contributionURI.length() > lastIndexOf + 1) {
				return contributionURI.substring(lastIndexOf + 1);
			}
			return contributionURI;
		}
		return null;
	}

	@Override
	public String getDescription(Object element) {
		return Messages.CoreExpressionEditor_TreeLabelDescription;
	}

	@Override
	public Composite doGetEditor(Composite parent, Object object) {
		if (composite == null) {
			context = new EMFDataBindingContext();
			composite = new Composite(parent, SWT.NONE);
			composite.setLayout(new FillLayout());
			createForm(composite, context, getMaster());
		}
		getMaster().setValue(object);

		return composite;
	}

	private Composite createForm(Composite parent, EMFDataBindingContext context, WritableValue master) {
		final CTabFolder folder = new CTabFolder(parent, SWT.BOTTOM);

		CTabItem item = new CTabItem(folder, SWT.NONE);
		item.setText(Messages.ModelTooling_Common_TabDefault);

		parent = createScrollableContainer(folder);
		item.setControl(parent.getParent());

		if (getEditor().isShowXMIId() || getEditor().isLiveModel()) {
			ControlFactory.createXMIId(parent, this);
		}

		ControlFactory.createClassURIField(parent, Messages, this, Messages.HandlerEditor_ClassURI,
				ApplicationPackageImpl.Literals.CONTRIBUTION__CONTRIBUTION_URI,
				getEditor().getContributionCreator(UiPackageImpl.Literals.IMPERATIVE_EXPRESSION), project,
				context, eclipseContext);

		item = new CTabItem(folder, SWT.NONE);
		item.setText(Messages.ModelTooling_Common_TabSupplementary);

		parent = createScrollableContainer(folder);
		item.setControl(parent.getParent());

		ControlFactory.createStringListWidget(parent, Messages, this, Messages.CategoryEditor_Tags,
				ApplicationPackageImpl.Literals.APPLICATION_ELEMENT__TAGS, VERTICAL_LIST_WIDGET_INDENT);
		ControlFactory.createMapProperties(parent, Messages, this, Messages.ModelTooling_Contribution_PersistedState,
				ApplicationPackageImpl.Literals.APPLICATION_ELEMENT__PERSISTED_STATE, VERTICAL_LIST_WIDGET_INDENT);

		createContributedEditorTabs(folder, context, getMaster(), MImperativeExpression.class);

		folder.setSelection(0);

		return folder;
	}

	@Override
	public IObservableList getChildList(Object element) {
		return null;
	}

}