a_cmslistresourcetypedialog.java

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/*
 * File   : $Source: /usr/local/cvs/opencms/src/org/opencms/workplace/list/A_CmsListResourceTypeDialog.java,v $
 * Date   : $Date: 2007-08-13 16:29:48 $
 * Version: $Revision: 1.4 $
 *
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) 2002 - 2007 Alkacon Software GmbH (http://www.alkacon.com)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * For further information about Alkacon Software GmbH, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.opencms.workplace.list;

import org.opencms.file.CmsResource;
import org.opencms.i18n.CmsMessageContainer;
import org.opencms.jsp.CmsJspActionElement;
import org.opencms.loader.CmsImageScaler;
import org.opencms.main.CmsException;
import org.opencms.main.CmsRuntimeException;
import org.opencms.main.OpenCms;
import org.opencms.util.CmsStringUtil;
import org.opencms.workplace.CmsWorkplace;
import org.opencms.workplace.explorer.CmsExplorerTypeSettings;
import org.opencms.workplace.explorer.Messages;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;

/**
 * Super class for all dialogs needed to display a list of resource types.<p>
 * 
 * @author Peter Bonrad
 * 
 * @version $Revision: 1.4 $ 
 * 
 * @since 6.7.2
 */
public abstract class A_CmsListResourceTypeDialog extends A_CmsListDialog {

    /** List independent action id constant. */
    public static final String LIST_ACTION_SEL = "rs";

    /** List column id constant. */
    public static final String LIST_COLUMN_ICON = "nrci";

    /** List column id constant. */
    public static final String LIST_COLUMN_NAME = "nrcn";

    /** List column id constant. */
    public static final String LIST_COLUMN_SELECT = "nrcs";

    /** List detail description info. */
    public static final String LIST_DETAIL_DESCRIPTION = "dd";

    /** List id constant. */
    public static final String LIST_ID = "nrt";

    /** Request parameter name for the index page resource type. */
    public static final String PARAM_SELECTED_TYPE = "selectedtype";

    /** Item comparator to ensure that special types go first. */
    private static final I_CmsListItemComparator LIST_ITEM_COMPARATOR = new I_CmsListItemComparator() {

        /**
         * @see org.opencms.workplace.list.I_CmsListItemComparator#getComparator(java.lang.String, java.util.Locale)
         */
        public Comparator getComparator(final String columnId, final Locale locale) {

            return new Comparator() {

                /**
                 * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
                 */
                public int compare(Object o1, Object o2) {

                    if ((o1 == o2) || !(o1 instanceof CmsListItem) || !(o2 instanceof CmsListItem)) {
                        return 0;
                    }
                    CmsListItem li1 = (CmsListItem)o1;
                    CmsListItem li2 = (CmsListItem)o2;

                    String id1 = li1.getId();
                    String id2 = li2.getId();

                    CmsExplorerTypeSettings set1 = OpenCms.getWorkplaceManager().getExplorerTypeSetting(id1);
                    CmsExplorerTypeSettings set2 = OpenCms.getWorkplaceManager().getExplorerTypeSetting(id2);

                    if (set1 == null) {
                        return -1;
                    } else if (set2 == null) {
                        return 1;
                    }
                    
                    return set1.compareTo(set2);
                }
            };
        }

    };

    /** Parameter which contains the selected resource type. */
    private String m_paramSelectedType;

    /**
     * Public constructor with JSP action element.<p>
     * 
     * @param jsp an initialized JSP action element
     */
    public A_CmsListResourceTypeDialog(CmsJspActionElement jsp) {

        this(
            jsp,
            LIST_ID,
            Messages.get().container(Messages.GUI_NEWRESOURCE_LIST_SELECT_NAME_0),
            null,
            CmsListOrderEnum.ORDER_ASCENDING,
            null);
    }

    /**
     * Public constructor.<p>
     * 
     * @param jsp an initialized JSP action element
     * @param listId the id of the displayed list
     * @param listName the name of the list
     * @param sortedColId the a priory sorted column
     * @param sortOrder the order of the sorted column
     * @param searchableColId the column to search into
     */
    public A_CmsListResourceTypeDialog(
        CmsJspActionElement jsp,
        String listId,
        CmsMessageContainer listName,
        String sortedColId,
        CmsListOrderEnum sortOrder,
        String searchableColId) {

        super(jsp, listId, listName, sortedColId, sortOrder, searchableColId);

        // set the style to show common workplace dialog layout
        setParamStyle("");

        // prevent paging, usually there are only few model files
        getList().setMaxItemsPerPage(Integer.MAX_VALUE);

        // hide print button
        getList().getMetadata().getIndependentAction(CmsListPrintIAction.LIST_ACTION_ID).setVisible(false);

        // suppress the box around the list
        getList().setBoxed(false);

        // hide title of the list
        getList().setShowTitle(false);
    }

    /**
     * Public constructor with JSP variables.<p>
     * 
     * @param context the JSP page context
     * @param req the JSP request
     * @param res the JSP response
     */
    public A_CmsListResourceTypeDialog(PageContext context, HttpServletRequest req, HttpServletResponse res) {

        this(new CmsJspActionElement(context, req, res));
    }

    /**
     * @see org.opencms.workplace.list.A_CmsListDialog#actionDialog()
     */
    public void actionDialog() throws JspException, ServletException, IOException {

        // set selected type
        I_CmsListDirectAction action = getList().getMetadata().getColumnDefinition(LIST_COLUMN_SELECT).getDirectAction(
            LIST_ACTION_SEL);
        if (action != null) {
            String selected = getParamSelectedType();
            if (selected != null) {
                ((CmsListItemSelectionAction)action).setSelectedItemId(selected);
            }
        }

        super.actionDialog();
    }

    /**
     * Builds a default button row with a continue and cancel button.<p>
     * 
     * Override this to have special buttons for your dialog.<p>
     * 
     * @return the button row 
     */
    public String dialogButtons() {

        return dialogButtons(
            new int[] {BUTTON_CONTINUE, BUTTON_CANCEL},
            new String[] {
                " onclick=\"submitAction('"
                    + DIALOG_CONTINUE
                    + "', form, '"
                    + getListId()
                    + "-form');\" id=\"nextButton\"",
                " onclick=\"submitAction('" + DIALOG_CANCEL + "', form, '" + getListId() + "-form');\""});
    }

    /**
     * @see org.opencms.workplace.list.A_CmsListDialog#executeListMultiActions()
     */
    public void executeListMultiActions() throws CmsRuntimeException {

        // noop
    }

    /**
     * @see org.opencms.workplace.list.A_CmsListDialog#executeListSingleActions()
     */
    public void executeListSingleActions() throws CmsRuntimeException {

        // noop
    }

    /**
     * Returns the paramSelectedType.<p>
     *
     * @return the paramSelectedType
     */
    public String getParamSelectedType() {

        return m_paramSelectedType;