/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) 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.commons;
import com.alkacon.simapi.Simapi;
import org.opencms.file.CmsProperty;
import org.opencms.file.CmsPropertyDefinition;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.file.types.CmsResourceTypeImage;
import org.opencms.i18n.CmsEncoder;
import org.opencms.jsp.CmsJspActionElement;
import org.opencms.loader.CmsImageScaler;
import org.opencms.loader.CmsLoaderException;
import org.opencms.main.CmsException;
import org.opencms.main.CmsLog;
import org.opencms.main.OpenCms;
import org.opencms.security.CmsPermissionSet;
import org.opencms.util.CmsStringUtil;
import org.opencms.workplace.CmsDialog;
import org.opencms.workplace.CmsWorkplaceSettings;
import java.awt.Color;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
import org.apache.commons.logging.Log;
/**
* Provides methods for the comment images dialog on image gallery folders.<p>
*
* The following files use this class:
* <ul>
* <li>/commons/commentimages.jsp
* </ul>
* <p>
*
* @since 6.1.3
*/
public class CmsCommentImages extends CmsDialog {
/** Value for the action: comment images. */
public static final int ACTION_COMMENTIMAGES = 100;
/** The dialog type. */
public static final String DIALOG_TYPE = "commentimages";
/** The input field prefix for description property fields. */
public static final String PREFIX_DESCRIPTION = "desc_";
/** The input field prefix for title property fields. */
public static final String PREFIX_TITLE = "title_";
/** The height of the dialog thumbnails. */
public static final int THUMB_HEIGHT = 150;
/** The width of the dialog thumbnails. */
public static final int THUMB_WIDTH = 200;
/** The log object for this class. */
private static final Log LOG = CmsLog.getLog(CmsCommentImages.class);
/** The image scaler object used in the dialog input form. */
private CmsImageScaler m_imageScaler;
/**
* Public constructor with JSP action element.<p>
*
* @param jsp an initialized JSP action element
*/
public CmsCommentImages(CmsJspActionElement jsp) {
super(jsp);
}
/**
* Public constructor with JSP variables.<p>
*
* @param context the JSP page context
* @param req the JSP request
* @param res the JSP response
*/
public CmsCommentImages(PageContext context, HttpServletRequest req, HttpServletResponse res) {
this(new CmsJspActionElement(context, req, res));
}
/**
* Performs the comment images action, will be called by the JSP page.<p>
*
* @throws JspException if problems including sub-elements occur
*/
public void actionCommentImages() throws JspException {
// save initialized instance of this class in request attribute for included sub-elements
getJsp().getRequest().setAttribute(SESSION_WORKPLACE_CLASS, this);
try {
performDialogOperation();
// if no exception is caused comment operation was successful
actionCloseDialog();
} catch (Throwable e) {
// error during rename images, show error dialog
includeErrorpage(this, e);
}
}
/**
* Returns the HTML for the dialog input form to comment the images.<p>
*
* @return the HTML for the dialog input form to comment the images
*/
public String buildDialogForm() {
StringBuffer result = new StringBuffer(16384);
Iterator i = getImages().iterator();
result.append("<div style=\"height: 450px; padding: 4px; overflow: auto;\">");
while (i.hasNext()) {
CmsResource res = (CmsResource)i.next();
String imageName = res.getName();
String propertySuffix = "" + imageName.hashCode();
result.append(dialogBlockStart(imageName));
result.append("<table border=\"0\">\n");
result.append("<tr>\n\t<td style=\"vertical-align: top;\">");
// create image tag
result.append("<img src=\"");
StringBuffer link = new StringBuffer(256);
link.append(getCms().getSitePath(res));
link.append(getImageScaler().toRequestParam());
result.append(getJsp().link(link.toString()));
result.append("\" border=\"0\" alt=\"\" width=\"");
result.append(getImageScaler().getWidth());
result.append("\" height=\"");
result.append(getImageScaler().getHeight());
result.append("\">");
result.append("</td>\n");
result.append("\t<td class=\"maxwidth\" style=\"vertical-align: top;\">\n");
result.append("\t\t<table border=\"0\">\n");
// build title property input row
String title = "";
try {
title = getCms().readPropertyObject(res, CmsPropertyDefinition.PROPERTY_TITLE, false).getValue();
} catch (CmsException e) {
// log, should never happen
if (LOG.isErrorEnabled()) {
LOG.error(e.getLocalizedMessage(getLocale()));
}
}
result.append("\t\t<tr>\n\t\t\t<td style=\"white-space: nowrap;\" unselectable=\"on\">");
result.append(key(Messages.GUI_LABEL_TITLE_0));
result.append(":</td>\n\t\t\t<td class=\"maxwidth\">");
result.append("<input type=\"text\" class=\"maxwidth\" name=\"");
result.append(PREFIX_TITLE);
result.append(propertySuffix);
result.append("\" value=\"");
if (CmsStringUtil.isNotEmpty(title)) {
result.append(CmsEncoder.escapeXml(title));
}
result.append("\">");
result.append("</td>\n\t\t</tr>\n");
// build description property input row
String description = "";
try {
description = getCms().readPropertyObject(res, CmsPropertyDefinition.PROPERTY_DESCRIPTION, false).getValue();
} catch (CmsException e) {
// log, should never happen
if (LOG.isErrorEnabled()) {
LOG.error(e.getLocalizedMessage(getLocale()));
}
}
result.append("\t\t<tr>\n\t\t\t<td style=\"white-space: nowrap; vertical-align: top;\" unselectable=\"on\">");
result.append(key(Messages.GUI_LABEL_DESCRIPTION_0));
result.append(":</td>\n\t\t\t<td style=\"vertical-align: top; height: 110px;\">");
result.append("<textarea rows=\"8\" class=\"maxwidth\" style=\"overflow: auto;\" name=\"");
result.append(PREFIX_DESCRIPTION);
result.append(propertySuffix);
result.append("\">");
if (CmsStringUtil.isNotEmpty(description)) {
result.append(CmsEncoder.escapeXml(description));
}
result.append("</textarea>");
result.append("</td>\n\t\t</tr>\n");
result.append("\t\t</table>\n");
result.append("</td>\n</tr>\n");
result.append("</table>\n");
result.append(dialogBlockEnd());
if (i.hasNext()) {
// append spacer if another entry follows
result.append(dialogSpacer());
}
}
result.append("</div>");
return result.toString();
}
/**
* Returns the image resources of the gallery folder which are edited in the dialog form.<p>
*
* @return the images of the gallery folder which are edited in the dialog form
*/
protected List getImages() {
// get all image resources of the folder
int imageId;
try {
imageId = OpenCms.getResourceManager().getResourceType(CmsResourceTypeImage.getStaticTypeName()).getTypeId();
} catch (CmsLoaderException e1) {
// should really never happen
LOG.warn(e1.getLocalizedMessage(), e1);
imageId = CmsResourceTypeImage.getStaticTypeId();
}
CmsResourceFilter filter = CmsResourceFilter.IGNORE_EXPIRATION.addRequireType(imageId);
try {
return getCms().readResources(getParamResource(), filter, false);
} catch (CmsException e) {
// log, should never happen
if (LOG.isErrorEnabled()) {
LOG.error(e.getLocalizedMessage(getLocale()));
}
return new ArrayList(0);
}
}
/**
* Returns the initialized image scaler object used to generate thumbnails for the dialog form.<p>
*
* @return the initialized image scaler object used to generate thumbnails for the dialog form
*/
protected CmsImageScaler getImageScaler() {
if (m_imageScaler == null) {
// not initialized, create image scaler with default settings
m_imageScaler = new CmsImageScaler();
m_imageScaler.setWidth(THUMB_WIDTH);
m_imageScaler.setHeight(THUMB_HEIGHT);
m_imageScaler.setRenderMode(Simapi.RENDER_SPEED);
m_imageScaler.setColor(new Color(0, 0, 0));
m_imageScaler.setType(1);
}
return m_imageScaler;
}
/**
* @see org.opencms.workplace.CmsWorkplace#initWorkplaceRequestValues(org.opencms.workplace.CmsWorkplaceSettings, javax.servlet.http.HttpServletRequest)
*/
protected void initWorkplaceRequestValues(CmsWorkplaceSettings settings, HttpServletRequest request) {
// fill the parameter values in the get/set methods
fillParamValues(request);
// check the required permissions to rename the resource
if (!checkResourcePermissions(CmsPermissionSet.ACCESS_WRITE, false)) {
// no write permissions for the resource, set cancel action to close dialog
setParamAction(DIALOG_CANCEL);
}
// set the dialog type
setParamDialogtype(DIALOG_TYPE);
// set the action for the JSP switch
if (DIALOG_TYPE.equals(getParamAction())) {
setAction(ACTION_COMMENTIMAGES);
} else if (DIALOG_LOCKS_CONFIRMED.equals(getParamAction())) {
setAction(ACTION_LOCKS_CONFIRMED);
} else if (DIALOG_CANCEL.equals(getParamAction())) {
setAction(ACTION_CANCEL);
} else {
setAction(ACTION_DEFAULT);
// build title for comment images dialog
Object[] args = new Object[] {getParamResource()};
setParamTitle(key(Messages.GUI_COMMENTIMAGES_TITLE_1, args));
}
}
/**
* Performs the comment images operation.<p>
*
* @return true, if the resources were successfully processed, otherwise false
* @throws CmsException if commenting is not successful
*/
protected boolean performDialogOperation() throws CmsException {
// lock the image gallery folder
checkLock(getParamResource());
Iterator i = getImages().iterator();
// loop over all image resources to change the properties
while (i.hasNext()) {
CmsResource res = (CmsResource)i.next();
String imageName = res.getName();
String propertySuffix = "" + imageName.hashCode();
// update the title property
CmsProperty titleProperty = getCms().readPropertyObject(res, CmsPropertyDefinition.PROPERTY_TITLE, false);
String newValue = getJsp().getRequest().getParameter(PREFIX_TITLE + propertySuffix);
writeProperty(res, CmsPropertyDefinition.PROPERTY_TITLE, newValue, titleProperty);
// update the description property
CmsProperty descProperty = getCms().readPropertyObject(
res,
CmsPropertyDefinition.PROPERTY_DESCRIPTION,
false);
newValue = getJsp().getRequest().getParameter(PREFIX_DESCRIPTION + propertySuffix);
writeProperty(res, CmsPropertyDefinition.PROPERTY_DESCRIPTION, newValue, descProperty);
}
return true;
}
/**
* Writes a property value for a resource, if the value was changed.<p>
*
* @param res the resource to write the property to
* @param propName the name of the property definition
* @param propValue the new value of the property
* @param currentProperty the old property object
* @throws CmsException if something goes wrong
*/
protected void writeProperty(CmsResource res, String propName, String propValue, CmsProperty currentProperty)
throws CmsException {
// check if current property is not the null property
if (currentProperty.isNullProperty()) {
// create new property object
currentProperty = new CmsProperty();
currentProperty.setName(propName);
}
if (CmsStringUtil.isEmptyOrWhitespaceOnly(propValue)) {
// parameter is empty, determine the value to delete
boolean writeProperty = false;
if (currentProperty.getStructureValue() != null) {
currentProperty.setStructureValue(CmsProperty.DELETE_VALUE);
currentProperty.setResourceValue(null);
writeProperty = true;
} else if (currentProperty.getResourceValue() != null) {
currentProperty.setResourceValue(CmsProperty.DELETE_VALUE);
currentProperty.setStructureValue(null);
writeProperty = true;
}
if (writeProperty) {
// write the updated property object
getCms().writePropertyObject(getCms().getSitePath(res), currentProperty);
}
} else {
// parameter is not empty, check if the value has changed
if (!propValue.equals(currentProperty.getValue())) {
if ((currentProperty.getStructureValue() == null) && (currentProperty.getResourceValue() == null)) {
// new property, determine setting from OpenCms workplace configuration
if (OpenCms.getWorkplaceManager().isDefaultPropertiesOnStructure()) {
currentProperty.setStructureValue(propValue);
currentProperty.setResourceValue(null);
} else {
currentProperty.setResourceValue(propValue);
currentProperty.setStructureValue(null);
}
} else if (currentProperty.getStructureValue() != null) {
// structure value has to be updated
currentProperty.setStructureValue(propValue);
currentProperty.setResourceValue(null);
} else {
// resource value has to be updated
currentProperty.setResourceValue(propValue);
currentProperty.setStructureValue(null);
}
// write the updated property object
getCms().writePropertyObject(getCms().getSitePath(res), currentProperty);
}
}
}
}