org.opencms.ui.apps.CmsEditor Maven / Gradle / Ivy
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/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH & Co. KG (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, 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.ui.apps;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.main.CmsLog;
import org.opencms.main.OpenCms;
import org.opencms.security.CmsRole;
import org.opencms.ui.A_CmsUI;
import org.opencms.ui.components.CmsErrorDialog;
import org.opencms.ui.components.I_CmsWindowCloseListener;
import org.opencms.ui.editors.I_CmsEditor;
import org.opencms.util.CmsUUID;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.Collections;
import java.util.Map;
import org.apache.commons.logging.Log;
import com.vaadin.event.Action;
import com.vaadin.navigator.ViewChangeListener;
import com.vaadin.server.Page;
/**
* The editor app. Will open the appropriate editor for a resource.
*/
public class CmsEditor
implements I_CmsWorkplaceApp, ViewChangeListener, I_CmsWindowCloseListener, I_CmsHasShortcutActions {
/** The serial version id. */
private static final long serialVersionUID = 7503052469189004387L;
/** Logger instance for this class. */
private static final Log LOG = CmsLog.getLog(CmsEditor.class);
/** The resource id state prefix. */
public static final String RESOURCE_ID_PREFIX = "resourceId:";
/** The resource id state prefix. */
public static final String RESOURCE_PATH_PREFIX = "resourcePath:";
/** The back link prefix. */
public static final String BACK_LINK_PREFIX = "backLink:";
/** The back link prefix. */
public static final String PLAIN_TEXT_PREFIX = "plainText:";
/** The state separator. */
public static final String STATE_SEPARATOR = ";;";
/** The UUID length. */
private static final int UUID_LENGTH = CmsUUID.getNullUUID().toString().length();
/** The UI context. */
private I_CmsAppUIContext m_context;
/** The editor instance. */
private I_CmsEditor m_editorInstance;
/**
* Returns the edit state for the given resource structure id.
*
* @param resourceId the resource structure is
* @param plainText if plain text/source editing is required
* @param backLink the back link location
*
* @return the state
*/
public static String getEditState(CmsUUID resourceId, boolean plainText, String backLink) {
try {
backLink = URLEncoder.encode(backLink, "UTF-8");
} catch (UnsupportedEncodingException e) {
LOG.error(e.getLocalizedMessage(), e);
}
String state = CmsEditor.RESOURCE_ID_PREFIX
+ resourceId.toString()
+ CmsEditor.STATE_SEPARATOR
+ CmsEditor.PLAIN_TEXT_PREFIX
+ plainText
+ CmsEditor.STATE_SEPARATOR
+ CmsEditor.BACK_LINK_PREFIX
+ backLink;
return state;
}
/**
* Navigates to the back link target.
*
* @param backlink the back link
*/
public static void openBackLink(String backlink) {
try {
backlink = URLDecoder.decode(backlink, "UTF-8");
String current = Page.getCurrent().getLocation().toString();
if (current.contains("#")) {
current = current.substring(0, current.indexOf("#"));
}
// check if the back link targets the workplace UI
if (backlink.startsWith(current)) {
// use the navigator to open the target
String target = backlink.substring(backlink.indexOf("#") + 1);
CmsAppWorkplaceUi.get().getNavigator().navigateTo(target);
} else {
// otherwise set the new location
Page.getCurrent().setLocation(backlink);
}
} catch (UnsupportedEncodingException e) {
// only in case of malformed charset
LOG.error(e.getLocalizedMessage(), e);
}
}
/**
* @see com.vaadin.navigator.ViewChangeListener#afterViewChange(com.vaadin.navigator.ViewChangeListener.ViewChangeEvent)
*/
public void afterViewChange(ViewChangeEvent event) {
if (m_editorInstance instanceof ViewChangeListener) {
((ViewChangeListener)m_editorInstance).afterViewChange(event);
}
}
/**
* @see com.vaadin.navigator.ViewChangeListener#beforeViewChange(com.vaadin.navigator.ViewChangeListener.ViewChangeEvent)
*/
public boolean beforeViewChange(ViewChangeEvent event) {
if (m_editorInstance instanceof ViewChangeListener) {
return ((ViewChangeListener)m_editorInstance).beforeViewChange(event);
} else {
return true;
}
}
/**
* @see org.opencms.ui.apps.I_CmsHasShortcutActions#getShortcutActions()
*/
public Map getShortcutActions() {
if (m_editorInstance instanceof I_CmsHasShortcutActions) {
return ((I_CmsHasShortcutActions)m_editorInstance).getShortcutActions();
} else {
return Collections.EMPTY_MAP;
}
}
/**
* @see org.opencms.ui.apps.I_CmsWorkplaceApp#initUI(org.opencms.ui.apps.I_CmsAppUIContext)
*/
public void initUI(I_CmsAppUIContext context) {
m_context = context;
}
/**
* @see org.opencms.ui.apps.I_CmsWorkplaceApp#onStateChange(java.lang.String)
*/
public void onStateChange(String state) {
CmsUUID resId = getResourceIdFromState(state);
String path = null;
if (resId == null) {
path = getResourcePathFromState(state);
}
CmsObject cms = A_CmsUI.getCmsObject();
final String backlink = getBackLinkFromState(state);
try {
CmsResource resource;
if (resId != null) {
resource = cms.readResource(resId, CmsResourceFilter.ONLY_VISIBLE_NO_DELETED);
} else {
resource = cms.readResource(path, CmsResourceFilter.ONLY_VISIBLE_NO_DELETED);
}
// make sure the user has the required role
OpenCms.getRoleManager().checkRoleForResource(cms, CmsRole.ELEMENT_AUTHOR, cms.getSitePath(resource));
I_CmsEditor editor = OpenCms.getWorkplaceAppManager().getEditorForResource(resource, isPlainText(state));
if (editor != null) {
m_editorInstance = editor.newInstance();
m_editorInstance.initUI(m_context, resource, backlink);
}
} catch (Exception e) {
LOG.error("Error initializing the editor.", e);
CmsErrorDialog.showErrorDialog(e, new Runnable() {
public void run() {
openBackLink(backlink);
}
});
}
}
/**
* @see org.opencms.ui.components.I_CmsWindowCloseListener#onWindowClose()
*/
public void onWindowClose() {
if (m_editorInstance instanceof I_CmsWindowCloseListener) {
((I_CmsWindowCloseListener)m_editorInstance).onWindowClose();
}
}
/**
* Returns the back link info from the given state.
*
* @param state the state
*
* @return the back link info
*/
private String getBackLinkFromState(String state) {
String result = null;
int index = state.indexOf(BACK_LINK_PREFIX);
if (index >= 0) {
result = state.substring(index + BACK_LINK_PREFIX.length());
index = result.indexOf(STATE_SEPARATOR);
if (index > 0) {
result = result.substring(0, index);
}
}
return result;
}
/**
* Returns the resource id form the given state.
*
* @param state the state
*
* @return the resource id
*/
private CmsUUID getResourceIdFromState(String state) {
CmsUUID result = null;
int index = state.indexOf(RESOURCE_ID_PREFIX);
if (index >= 0) {
String id = state.substring(
index + RESOURCE_ID_PREFIX.length(),
index + RESOURCE_ID_PREFIX.length() + UUID_LENGTH);
if (CmsUUID.isValidUUID(id)) {
result = new CmsUUID(id);
}
}
return result;
}
/**
* Returns the resource path from the given state.
*
* @param state the state
*
* @return the resource path
*/
private String getResourcePathFromState(String state) {
String result = null;
int index = state.indexOf(RESOURCE_PATH_PREFIX);
if (index >= 0) {
result = state.substring(index + RESOURCE_PATH_PREFIX.length());
index = result.indexOf(STATE_SEPARATOR);
if (index > 0) {
result = result.substring(0, index);
}
}
return result;
}
/**
* Returns if plain text/source editing is requested.
*
* @param state the state
*
* @return true if plain text/source editing is requested
*/
private boolean isPlainText(String state) {
return state.indexOf(PLAIN_TEXT_PREFIX + Boolean.TRUE.toString()) >= 0;
}
}