/*
* 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 org.opencms.file.CmsObject;
import org.opencms.file.CmsProperty;
import org.opencms.file.CmsPropertyDefinition;
import org.opencms.file.CmsResource;
import org.opencms.i18n.CmsEncoder;
import org.opencms.i18n.CmsMessages;
import org.opencms.jsp.CmsJspActionElement;
import org.opencms.jsp.CmsJspNavBuilder;
import org.opencms.jsp.CmsJspNavElement;
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.CmsWorkplace;
import org.opencms.workplace.CmsWorkplaceSettings;
import java.util.ArrayList;
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 change navigation dialog.<p>
*
* The following files use this class:
* <ul>
* <li>/commons/chnav.jsp
* </ul>
* <p>
*
* @since 6.0.0
*/
public class CmsChnav extends CmsDialog {
/** Value for the action: change the navigation. */
public static final int ACTION_CHNAV = 100;
/** The dialog type. */
public static final String DIALOG_TYPE = "chnav";
/** Request parameter name for the navigation position. */
public static final String PARAM_NAVPOS = "navpos";
/** Request parameter name for the navigation text. */
public static final String PARAM_NAVTEXT = "navtext";
/** The log object for this class. */
private static final Log LOG = CmsLog.getLog(CmsChnav.class);
private String m_paramNavpos;
private String m_paramNavtext;
/**
* Public constructor.<p>
*
* @param jsp an initialized JSP action element
*/
public CmsChnav(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 CmsChnav(PageContext context, HttpServletRequest req, HttpServletResponse res) {
this(new CmsJspActionElement(context, req, res));
}
/**
* Builds the HTML for the select box of the navigation position.<p>
*
* @param cms the CmsObject
* @param filename the current file
* @param attributes optional attributes for the <select> tag, do not add the "name" atribute!
* @param messages the localized workplace messages
*
* @return the HTML for a navigation position select box
*/
public static String buildNavPosSelector(CmsObject cms, String filename, String attributes, CmsMessages messages) {
// get current file navigation element
CmsJspNavBuilder navBuilder = new CmsJspNavBuilder(cms);
CmsJspNavElement curNav = navBuilder.getNavigationForResource(filename);
// get the parent folder of the current file
filename = CmsResource.getParentFolder(filename);
// get navigation of the current folder
List navList = navBuilder.getNavigationForFolder(filename);
float maxValue = 0;
float nextPos = 0;
// calculate value for the first navigation position
float firstValue = 1;
if (navList.size() > 0) {
try {
CmsJspNavElement ne = (CmsJspNavElement)navList.get(0);
maxValue = ne.getNavPosition();
} catch (Exception e) {
// should usually never happen
LOG.error(e.getLocalizedMessage());
}
}
if (maxValue != 0) {
firstValue = maxValue / 2;
}
List options = new ArrayList(navList.size() + 1);
List values = new ArrayList(navList.size() + 1);
// add the first entry: before first element
options.add(messages.key(Messages.GUI_CHNAV_POS_FIRST_0));
values.add(firstValue + "");
// show all present navigation elements in box
for (int i = 0; i < navList.size(); i++) {
CmsJspNavElement ne = (CmsJspNavElement)navList.get(i);
String navText = ne.getNavText();
float navPos = ne.getNavPosition();
// get position of next nav element
nextPos = navPos + 2;
if ((i + 1) < navList.size()) {
nextPos = ((CmsJspNavElement)navList.get(i + 1)).getNavPosition();
}
// calculate new position of current nav element
float newPos;
if ((nextPos - navPos) > 1) {
newPos = navPos + 1;
} else {
newPos = (navPos + nextPos) / 2;
}
// check new maxValue of positions and increase it
if (navPos > maxValue) {
maxValue = navPos;
}
// if the element is the current file, mark it in selectbox
if ((curNav != null) && curNav.getNavText().equals(navText) && (curNav.getNavPosition() == navPos)) {
options.add(CmsEncoder.escapeHtml(messages.key(
Messages.GUI_CHNAV_POS_CURRENT_1,
new Object[] {ne.getFileName()})));
values.add("-1");
} else {
options.add(CmsEncoder.escapeHtml(navText + " [" + ne.getFileName() + "]"));
values.add(newPos + "");
}
}
// add the entry: at the last position
options.add(messages.key(Messages.GUI_CHNAV_POS_LAST_0));
values.add((maxValue + 1) + "");
// add the entry: no change
options.add(messages.key(Messages.GUI_CHNAV_NO_CHANGE_0));
if ((curNav != null) && (curNav.getNavPosition() == Float.MAX_VALUE)) {
// current resource has no valid position, use "last position"
values.add((maxValue + 1) + "");
} else {
// current resource has valid position, use "-1" for no change
values.add("-1");
}
if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(attributes)) {
attributes = " " + attributes;
} else {
attributes = "";
}
return CmsWorkplace.buildSelect(
"name=\"" + PARAM_NAVPOS + "\"" + attributes,
options,
values,
values.size() - 1,
true);
}
/**
* Performs the navigation change.<p>
*
* @throws JspException if including a JSP subelement is not successful
*/
public void actionChangeNav() throws JspException {
// save initialized instance of this class in request attribute for included sub-elements
getJsp().getRequest().setAttribute(SESSION_WORKPLACE_CLASS, this);
// get request parameters
String filename = getParamResource();
// do not use #getParamNavText since it is decoded, see CmsWorkplace#fillParamValues(HttpServletRequest)
String newText = getJsp().getRequest().getParameter(PARAM_NAVTEXT);
String selectedPosString = getParamNavpos();
try {
// lock resource if autolock is enabled
checkLock(getParamResource());
// save the new NavText if not null
if (newText != null) {
CmsProperty newNavText = new CmsProperty();
newNavText.setName(CmsPropertyDefinition.PROPERTY_NAVTEXT);
CmsProperty oldNavText = getCms().readPropertyObject(
filename,
CmsPropertyDefinition.PROPERTY_NAVTEXT,
false);
if (oldNavText.isNullProperty()) {
// property value was not already set
if (OpenCms.getWorkplaceManager().isDefaultPropertiesOnStructure()) {
newNavText.setStructureValue(newText);
} else {
newNavText.setResourceValue(newText);
}
} else {
if (oldNavText.getStructureValue() != null) {
newNavText.setStructureValue(newText);
newNavText.setResourceValue(oldNavText.getResourceValue());
} else {
newNavText.setResourceValue(newText);
}
}
String oldStructureValue = oldNavText.getStructureValue();
String newStructureValue = newNavText.getStructureValue();
if (CmsStringUtil.isEmpty(oldStructureValue)) {
oldStructureValue = CmsProperty.DELETE_VALUE;
}
if (CmsStringUtil.isEmpty(newStructureValue)) {
newStructureValue = CmsProperty.DELETE_VALUE;
}
String oldResourceValue = oldNavText.getResourceValue();
String newResourceValue = newNavText.getResourceValue();
if (CmsStringUtil.isEmpty(oldResourceValue)) {
oldResourceValue = CmsProperty.DELETE_VALUE;
}
if (CmsStringUtil.isEmpty(newResourceValue)) {
newResourceValue = CmsProperty.DELETE_VALUE;
}
// change nav text only if it has been changed
if (!oldResourceValue.equals(newResourceValue) || !oldStructureValue.equals(newStructureValue)) {
getCms().writePropertyObject(getParamResource(), newNavText);
}
}
// determine the selected position
float selectedPos = -1;
try {
selectedPos = Float.parseFloat(selectedPosString);
} catch (Exception e) {
// can usually be ignored
if (LOG.isInfoEnabled()) {
LOG.info(e.getLocalizedMessage());
}
}
// only update the position if a change is requested
if (selectedPos != -1) {
CmsProperty newNavPos = new CmsProperty();
newNavPos.setName(CmsPropertyDefinition.PROPERTY_NAVPOS);
CmsProperty oldNavPos = getCms().readPropertyObject(
filename,
CmsPropertyDefinition.PROPERTY_NAVPOS,
false);
if (oldNavPos.isNullProperty()) {
// property value was not already set
if (OpenCms.getWorkplaceManager().isDefaultPropertiesOnStructure()) {
newNavPos.setStructureValue(selectedPosString);
} else {
newNavPos.setResourceValue(selectedPosString);
}
} else {
if (oldNavPos.getStructureValue() != null) {
newNavPos.setStructureValue(selectedPosString);
newNavPos.setResourceValue(oldNavPos.getResourceValue());
} else {
newNavPos.setResourceValue(selectedPosString);
}
}
getCms().writePropertyObject(filename, newNavPos);
}
} catch (Throwable e) {
// error during chnav, show error dialog
includeErrorpage(this, e);
}
// chnav operation was successful, return to workplace
actionCloseDialog();
}
/**
* Builds the HTML for the select box of the navigation position.<p>
*
* @return the HTML for a navigation position select box
*/
public String buildNavPosSelector() {
return buildNavPosSelector(getCms(), getParamResource(), null, getMessages());
}
/**
* Returns the escaped NavText property value of the current resource.<p>
*
* @return the NavText property value of the current resource
*/
public String getCurrentNavText() {
try {
String navText = getCms().readPropertyObject(
getParamResource(),
CmsPropertyDefinition.PROPERTY_NAVTEXT,
false).getValue();
if (navText == null) {
navText = "";
}
return CmsEncoder.escapeXml(navText);
} catch (CmsException e) {
// can usually be ignored
if (LOG.isInfoEnabled()) {
LOG.info(e.getLocalizedMessage());
}
return "";
}
}
/**
* Returns the value of the navigation position parameter,
* or null if this parameter was not provided.<p>
*
* The navigation position parameter defines the new value for
* the NavPos property.<p>
*
* @return the value of the target parameter
*/
public String getParamNavpos() {
return m_paramNavpos;
}
/**
* Returns the value of the navigation text parameter,
* or null if this parameter was not provided.<p>
*
* The navigation text parameter defines the new value for
* the NavText property.<p>
*
* @return the value of the target parameter
*/
public String getParamNavtext() {
return m_paramNavtext;
}
/**
* Sets the value of the navigation position parameter.<p>
*
* @param value the value to set
*/
public void setParamNavpos(String value) {
m_paramNavpos = value;
}
/**
* Sets the value of the navigation text parameter.<p>
*
* @param value the value to set
*/
public void setParamNavtext(String value) {
m_paramNavtext = value;
}
/**
* @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 change navigation of 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_CHNAV);
} 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 chnav dialog
setParamTitle(key(Messages.GUI_CHNAV_1, new Object[] {CmsResource.getName(getParamResource())}));
}
}
}