libreccm-legacy/ccm-cms/src/com/arsdigita/cms/ui/ImageSelectPage.java

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.arsdigita.cms.ui;

import com.arsdigita.bebop.Component;
import com.arsdigita.bebop.MapComponentSelectionModel;
import com.arsdigita.bebop.PageState;
import com.arsdigita.bebop.ParameterSingleSelectionModel;
import com.arsdigita.bebop.SimpleContainer;
import com.arsdigita.bebop.TabbedPane;
import com.arsdigita.bebop.event.ActionEvent;
import com.arsdigita.bebop.event.ActionListener;
import com.arsdigita.bebop.parameters.BigDecimalParameter;
import com.arsdigita.bebop.parameters.StringParameter;
import com.arsdigita.cms.CMSConfig;
import com.arsdigita.cms.dispatcher.CMSPage;
import com.arsdigita.cms.util.GlobalizationUtil;
import com.arsdigita.toolbox.ui.LayoutPanel;
import java.util.HashMap;
import org.apache.log4j.Logger;

/**
 * A {@link CMSPage} to select and upload images.
 *
 * This page is used by
 * /web/templates/ccm-cms/content-section/admin/image_select.jsp which is used
 * by the OpenCCM plugin for Xinha editor.
 *
 * @author Sören Bernstein <quasi@quasiweb.de>
 */
public class ImageSelectPage extends CMSPage {

	private static final Logger S_LOG = Logger.getLogger(ImagesPane.class);
	private final static String XSL_CLASS = "CMS Admin";
	private TabbedPane m_tabbedPane;
	private LayoutPanel m_imageLibrary;
	private ImageUploadComponent m_imageUpload;
	private ImageSelectResultComponent m_result;
	private BigDecimalParameter m_sectionId;
	private final StringParameter m_imageComponentKey;
	private final MapComponentSelectionModel m_imageComponent;
	private final ImageComponentSelectListener m_selectListener;
	private static final CMSConfig s_conf = CMSConfig.getInstance();
	public static final String CONTENT_SECTION = "section_id";
	public static final String RESULT = "result";

	public ImageSelectPage() {
		super(GlobalizationUtil.globalize(
			"cms.ui.image_select.page_title")
			.localize().toString(),
			new SimpleContainer());

		setClassAttr("cms-admin");

		m_sectionId = new BigDecimalParameter(CONTENT_SECTION);
		addGlobalStateParam(m_sectionId);

		m_imageComponentKey = new StringParameter("imageComponent");

		ParameterSingleSelectionModel componentModel =
			new ParameterSingleSelectionModel(m_imageComponentKey);
		m_imageComponent =
			new MapComponentSelectionModel(componentModel, new HashMap());

		m_selectListener = new ImageComponentSelectListener(m_imageComponent,
			getResultComponent());

		m_tabbedPane = createTabbedPane();
		m_tabbedPane.setIdAttr("page-body");

		add(m_tabbedPane);
		// ActionListener to change the image component state param to the 
		// right value
		addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent event) {
				final PageState ps = event.getPageState();

				if (m_tabbedPane.getCurrentPane(ps).equals(m_imageLibrary)) {
					m_imageComponent.setSelectedKey(ps, ImageComponent.LIBRARY);
				}
				if (m_tabbedPane.getCurrentPane(ps).equals(m_imageUpload)) {
					m_imageComponent.setSelectedKey(ps, ImageComponent.UPLOAD);
				}
			}
		});

		add(m_result);

		addGlobalStateParam(m_imageComponentKey);
	}

	/**
	 * Create the image library pane
	 *
	 * @return m_imageLibrary
	 */
	protected LayoutPanel getImageLibraryPane() {
		if (m_imageLibrary == null) {
			m_imageLibrary = new LayoutPanel();
			
			ImageLibraryComponent libComp = new ImageLibraryComponent(ImageComponent.SELECT_IMAGE,
				this);
			libComp.getForm().addInitListener(m_selectListener);
			libComp.getForm().addProcessListener(m_selectListener);
			m_imageLibrary.setBody(libComp);
			m_imageComponent.getComponentsMap().put(ImageComponent.LIBRARY,
				m_imageLibrary);
		}
		return m_imageLibrary;
	}

	/**
	 * Create the image upload pane
	 *
	 * @return m_imageUpload
	 */
	protected ImageUploadComponent getImageUploadPane() {

		if (m_imageUpload == null) {
			m_imageUpload = new ImageUploadComponent(ImageComponent.SELECT_IMAGE);
			m_imageUpload.getForm().addInitListener(m_selectListener);
			m_imageUpload.getForm().addProcessListener(m_selectListener);
			m_imageComponent.getComponentsMap().put(ImageComponent.UPLOAD,
				m_imageUpload);
		}
		return m_imageUpload;
	}

	/**
	 * Creates an {@link ImageSelectResultComponent}
	 *
	 * @return m_resultPane
	 */
	protected ImageSelectResultComponent getResultComponent() {
		if (m_result == null) {
			m_result = new ImageSelectResultComponent();
		}
		return m_result;
	}

	/**
	 * Create the tabbed pane
	 */
	protected TabbedPane createTabbedPane() {
		TabbedPane pane = new TabbedPane();
		pane.setClassAttr(XSL_CLASS);

		addToPane(pane, ImageComponent.LIBRARY, getImageLibraryPane());
		addToPane(pane, ImageComponent.UPLOAD, getImageUploadPane());
		pane.setDefaultPane(m_imageLibrary);

		return pane;
	}

	/**
	 * Adds the specified component, with the specified tab name, to the
	 * tabbed pane only if it is not null.
	 *
	 * @param pane The pane to which to add the tab
	 * @param tabName The name of the tab if it's added
	 * @param comp The component to add to the pane
	 */
	protected void addToPane(final TabbedPane pane,
		final String tabName,
		final Component comp) {
		if (comp != null) {
			pane.addTab(GlobalizationUtil.globalize("cms.ui.image_" + tabName)
				.localize().toString(), comp);
		}
	}
}