/*******************************************************************************
 * Copyright (c) 2011, 2013 Oracle. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0, which accompanies this distribution
 * and is available at https://www.eclipse.org/legal/epl-2.0/.
 *
 * Contributors:
 *     Oracle - initial API and implementation
 ******************************************************************************/
package org.eclipse.jpt.jpa.ui.internal.details;

import org.eclipse.jface.resource.ResourceManager;
import org.eclipse.jpt.common.ui.WidgetFactory;
import org.eclipse.jpt.common.utility.internal.model.value.PropertyAspectAdapter;
import org.eclipse.jpt.common.utility.model.value.PropertyValueModel;
import org.eclipse.jpt.jpa.core.context.QueryContainer;
import org.eclipse.jpt.jpa.core.context.java.JavaMappedSuperclass;
import org.eclipse.jpt.jpa.ui.details.JptJpaUiDetailsMessages;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.forms.events.ExpansionAdapter;
import org.eclipse.ui.forms.events.ExpansionEvent;
import org.eclipse.ui.forms.widgets.ExpandableComposite;
import org.eclipse.ui.forms.widgets.Section;

/**
 * Here the layout of this pane:
 * <pre>
 * -----------------------------------------------------------------------------
 * | ------------------------------------------------------------------------- |
 * | |                                                                       | |
 * | | IdClassComposite                                                      | |
 * | |                                                                       | |
 * | ------------------------------------------------------------------------- |
 * |                                                                           |
 * | - v Queries ------------------------------------------------------------- |
 * | ------------------------------------------------------------------------- |
 * | |                                                                       | |
 * | | QueriesComposite                                                      | |
 * | |                                                                       | |
 * | ------------------------------------------------------------------------- |
 * -----------------------------------------------------------------------------</pre>
 */
public abstract class AbstractJavaMappedSuperclassComposite<T extends JavaMappedSuperclass>
	extends AbstractMappedSuperclassComposite<T> {
	/**
	 * Creates a new <code>MappedSuperclassComposite</code>.
	 *
	 * @param subjectHolder The holder of this pane's subject
	 * @param parent The parent container
	 * @param widgetFactory The factory used to create various common widgets
	 */
	public AbstractJavaMappedSuperclassComposite(
			PropertyValueModel<? extends T> mappedSuperclassModel,
			Composite parentComposite,
			WidgetFactory widgetFactory,
			ResourceManager resourceManager) {
		super(mappedSuperclassModel, parentComposite, widgetFactory, resourceManager);
	}
	
	@Override
	protected void initializeLayout(Composite container) {
		this.initializeMappedSuperclassCollapsibleSection(container);
		this.initializeQueriesCollapsibleSection(container);
	}
	
	protected void initializeQueriesCollapsibleSection(Composite container) {
		final Section section = this.getWidgetFactory().createSection(container, ExpandableComposite.TITLE_BAR | ExpandableComposite.TWISTIE);
		section.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		section.setText(JptJpaUiDetailsMessages.ENTITY_COMPOSITE_QUERIES);

		section.addExpansionListener(new ExpansionAdapter() {
			@Override
			public void expansionStateChanging(ExpansionEvent e) {
				if (e.getState() && section.getClient() == null) {
					section.setClient(initializeQueriesSection(section));
				}
			}
		});
	}

	protected Control initializeQueriesSection(Composite container) {
		return new QueriesComposite(this, this.buildQueryContainerModel(), container).getControl();
	}
	
	protected PropertyValueModel<QueryContainer> buildQueryContainerModel() {
		return new PropertyAspectAdapter<T, QueryContainer>(this.getSubjectHolder()) {
			@Override
			protected QueryContainer buildValue_() {
				return this.subject.getQueryContainer();
			}
		};
	}
}