001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.ade.galleries.client.preview.ui;
029
030import org.opencms.ade.galleries.client.Messages;
031import org.opencms.ade.galleries.client.preview.CmsBinaryPreviewHandler;
032import org.opencms.ade.galleries.client.ui.CmsResultListItem;
033import org.opencms.ade.galleries.client.ui.CmsResultsTab;
034import org.opencms.ade.galleries.client.ui.CmsResultsTab.DeleteHandler;
035import org.opencms.ade.galleries.shared.CmsResourceInfoBean;
036import org.opencms.gwt.client.dnd.CmsDNDHandler;
037import org.opencms.gwt.client.ui.CmsList;
038import org.opencms.gwt.client.ui.CmsListItem;
039import org.opencms.gwt.client.ui.CmsListItemWidget;
040import org.opencms.gwt.client.ui.CmsPushButton;
041import org.opencms.gwt.client.util.CmsDateTimeUtil;
042import org.opencms.gwt.client.util.CmsDateTimeUtil.Format;
043import org.opencms.gwt.shared.CmsListInfoBean;
044import org.opencms.gwt.shared.property.CmsClientProperty;
045import org.opencms.util.CmsStringUtil;
046import org.opencms.util.CmsUUID;
047
048import com.google.gwt.core.client.GWT;
049import com.google.gwt.dom.client.Style.Unit;
050import com.google.gwt.event.dom.client.ClickEvent;
051import com.google.gwt.event.dom.client.ClickHandler;
052import com.google.gwt.event.logical.shared.CloseEvent;
053import com.google.gwt.event.logical.shared.CloseHandler;
054import com.google.gwt.event.logical.shared.OpenEvent;
055import com.google.gwt.event.logical.shared.OpenHandler;
056import com.google.gwt.uibinder.client.UiBinder;
057import com.google.gwt.uibinder.client.UiField;
058import com.google.gwt.user.client.ui.Composite;
059import com.google.gwt.user.client.ui.HTML;
060import com.google.gwt.user.client.ui.HTMLPanel;
061
062/**
063 * Widget to display resource informations within the resource preview.<p>
064 *
065 * @since 8.0.0
066 */
067public class CmsBinaryPreviewContent extends Composite {
068
069    /**
070     * The ui-binder interface.<p>
071     */
072    public interface I_CmsPreviewContentUiBinder extends UiBinder<HTMLPanel, CmsBinaryPreviewContent> {
073        // GWT interface, nothing to do
074    }
075
076    /** The ui binder instance for this widget class. */
077    private static I_CmsPreviewContentUiBinder uiBinder = GWT.create(I_CmsPreviewContentUiBinder.class);
078
079    /** The preview handler. */
080    protected CmsBinaryPreviewHandler m_binaryPreviewHandler;
081
082    /** The list which only contains the list item for the previewed resource (required for drag and drop). */
083    @UiField
084    protected CmsList<CmsListItem> m_list;
085
086    /** The preview content HTML. */
087    @UiField
088    protected HTML m_previewContent;
089
090    /**
091     * Constructor.<p>
092     *
093     * @param info the resource info to display
094     * @param previewHandler the preview handler
095     */
096    public CmsBinaryPreviewContent(CmsResourceInfoBean info, CmsBinaryPreviewHandler previewHandler) {
097
098        m_binaryPreviewHandler = previewHandler;
099        CmsListItem listItem = createListItem(info, m_binaryPreviewHandler.getGalleryDialog().getDndHandler());
100        initWidget(uiBinder.createAndBindUi(this));
101        CmsUUID structureId = info.getStructureId();
102
103        if (structureId != null) {
104            listItem.setId(structureId.toString());
105        }
106        m_list.addItem(listItem);
107
108        if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(info.getPreviewContent())) {
109            m_previewContent.setHTML(info.getPreviewContent());
110        }
111    }
112
113    /**
114     * Creates the list item for the resource information bean.<p>
115     *
116     * @param resourceInfo the resource information bean
117     * @param dndHandler the drag and drop handler
118     *
119     * @return the list item widget
120     */
121    private CmsListItem createListItem(CmsResourceInfoBean resourceInfo, CmsDNDHandler dndHandler) {
122
123        CmsListInfoBean infoBean = new CmsListInfoBean();
124        infoBean.setTitle(
125            CmsStringUtil.isNotEmptyOrWhitespaceOnly(resourceInfo.getProperties().get(CmsClientProperty.PROPERTY_TITLE))
126            ? resourceInfo.getProperties().get(CmsClientProperty.PROPERTY_TITLE)
127            : resourceInfo.getTitle());
128        infoBean.setSubTitle(resourceInfo.getResourcePath());
129        infoBean.setResourceType(resourceInfo.getResourceType());
130        infoBean.setBigIconClasses(resourceInfo.getBigIconClasses());
131        infoBean.setSmallIconClasses(resourceInfo.getSmallIconClasses());
132        infoBean.addAdditionalInfo(Messages.get().key(Messages.GUI_PREVIEW_LABEL_SIZE_0), resourceInfo.getSize());
133        if (resourceInfo.getDescription() != null) {
134            infoBean.addAdditionalInfo(
135                Messages.get().key(Messages.GUI_PREVIEW_LABEL_DESCRIPTION_0),
136                resourceInfo.getDescription());
137        }
138        if (resourceInfo.getLastModified() != null) {
139            infoBean.addAdditionalInfo(
140                Messages.get().key(Messages.GUI_PREVIEW_LABEL_DATEMODIFIED_0),
141                CmsDateTimeUtil.getDate(resourceInfo.getLastModified(), Format.MEDIUM));
142        }
143        CmsListItemWidget itemWidget = new CmsListItemWidget(infoBean);
144        itemWidget.addOpenHandler(new OpenHandler<CmsListItemWidget>() {
145
146            public void onOpen(OpenEvent<CmsListItemWidget> event) {
147
148                int widgetHeight = event.getTarget().getOffsetHeight();
149                m_previewContent.getElement().getStyle().setTop(12 + widgetHeight, Unit.PX);
150            }
151        });
152        itemWidget.addCloseHandler(new CloseHandler<CmsListItemWidget>() {
153
154            public void onClose(CloseEvent<CmsListItemWidget> event) {
155
156                m_previewContent.getElement().getStyle().clearTop();
157            }
158        });
159        CmsListItem result = new CmsListItem(itemWidget);
160
161        CmsPushButton button = CmsResultListItem.createDeleteButton();
162        if (dndHandler != null) {
163            result.initMoveHandle(dndHandler);
164        }
165        CmsResultsTab resultsTab = m_binaryPreviewHandler.getGalleryDialog().getResultsTab();
166        final DeleteHandler deleteHandler = resultsTab.makeDeleteHandler(resourceInfo.getResourcePath());
167        ClickHandler handler = new ClickHandler() {
168
169            public void onClick(ClickEvent event) {
170
171                deleteHandler.onClick(event);
172                m_binaryPreviewHandler.closePreview();
173            }
174        };
175        button.addClickHandler(handler);
176        itemWidget.addButton(button);
177        return result;
178    }
179}