/*
* 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, 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.ade.sitemap.client.control;
import org.opencms.ade.detailpage.CmsDetailPageInfo;
import org.opencms.ade.sitemap.client.CmsSitemapTreeItem;
import org.opencms.ade.sitemap.client.CmsSitemapView;
import org.opencms.ade.sitemap.client.toolbar.CmsSitemapToolbar;
import org.opencms.ade.sitemap.client.ui.CmsCreatableListItem;
import org.opencms.ade.sitemap.client.ui.css.I_CmsSitemapLayoutBundle;
import org.opencms.ade.sitemap.shared.CmsClientSitemapEntry;
import org.opencms.ade.sitemap.shared.CmsClientSitemapEntry.EntryType;
import org.opencms.ade.sitemap.shared.CmsNewResourceInfo;
import org.opencms.gwt.client.dnd.CmsDNDHandler;
import org.opencms.gwt.client.dnd.CmsDNDHandler.Orientation;
import org.opencms.gwt.client.dnd.I_CmsDNDController;
import org.opencms.gwt.client.dnd.I_CmsDraggable;
import org.opencms.gwt.client.dnd.I_CmsDropTarget;
import org.opencms.gwt.client.property.CmsReloadMode;
import org.opencms.gwt.client.ui.tree.CmsTree;
import org.opencms.gwt.client.util.CmsDebugLog;
import org.opencms.gwt.client.util.CmsDomUtil;
import org.opencms.gwt.client.util.CmsDomUtil.Tag;
import org.opencms.gwt.shared.property.CmsClientProperty;
import org.opencms.gwt.shared.property.CmsPropertyModification;
import java.util.Collections;
import java.util.List;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Style.Unit;
/**
* The sitemap drag and drop controller.<p>
*
* @since 8.0.0
*/
public class CmsSitemapDNDController implements I_CmsDNDController {
/** The sitemap controller instance. */
private CmsSitemapController m_controller;
/** The insert position of the draggable. */
private int m_insertIndex;
/** The insert path of the draggable. */
private String m_insertPath;
/** The original position of the draggable. */
private int m_originalIndex;
/** The original path of the draggable. */
private String m_originalPath;
/** The sitemap toolbar. */
private CmsSitemapToolbar m_toolbar;
/**
* Constructor.<p>
*
* @param controller the sitemap controller
* @param toolbar the sitemap toolbar
*/
public CmsSitemapDNDController(CmsSitemapController controller, CmsSitemapToolbar toolbar) {
m_controller = controller;
m_toolbar = toolbar;
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onAnimationStart(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public void onAnimationStart(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
// nothing to do
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onBeforeDrop(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public boolean onBeforeDrop(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
if (!(target instanceof CmsTree<?>)) {
// only dropping onto the tree allowed in sitemap editor
return false;
}
CmsTree<?> tree = (CmsTree<?>)target;
m_insertPath = tree.getPlaceholderPath();
m_insertIndex = tree.getPlaceholderIndex();
if (m_insertPath.equals(m_originalPath) && (m_insertIndex > m_originalIndex)) {
// new position has the same path and is below the original position, adjust insert index
m_insertIndex -= 1;
if (m_insertIndex == m_originalIndex) {
return false;
}
}
if (m_insertIndex == -1) {
return false;
}
return true;
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onDragCancel(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public void onDragCancel(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
if (draggable instanceof CmsSitemapTreeItem) {
((CmsSitemapTreeItem)draggable).resetEntry();
}
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
/**
* @see com.google.gwt.user.client.Command#execute()
*/
public void execute() {
CmsSitemapView.getInstance().getTree().closeAllEmpty();
}
});
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onDragStart(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public boolean onDragStart(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
handler.setOrientation(Orientation.VERTICAL);
hideItemContent(handler.getPlaceholder());
handler.getDragHelper().getStyle().setOpacity(0.6);
m_insertIndex = -1;
m_insertPath = null;
m_originalIndex = -1;
m_originalPath = null;
if (draggable instanceof CmsCreatableListItem) {
m_toolbar.onButtonActivation(null);
// fixing placeholder indent not being present in non tree items
List<Element> elements = CmsDomUtil.getElementsByClass(
org.opencms.gwt.client.ui.css.I_CmsLayoutBundle.INSTANCE.floatDecoratedPanelCss().primary(),
Tag.div,
handler.getPlaceholder());
if ((elements != null) && (elements.size() > 0)) {
elements.get(0).getStyle().setMarginLeft(16, Unit.PX);
}
} else if (draggable instanceof CmsSitemapTreeItem) {
CmsSitemapTreeItem treeItem = (CmsSitemapTreeItem)draggable;
m_originalPath = treeItem.getParentItem().getPath();
if (treeItem.getParentItem() != null) {
m_originalIndex = treeItem.getParentItem().getItemPosition(treeItem);
}
}
CmsDebugLog.getInstance().printLine("Starting path: " + m_originalPath + ", Index: " + m_originalIndex);
return true;
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onDrop(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public void onDrop(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
if (!(target instanceof CmsTree<?>)) {
// only dropping onto the tree allowed in sitemap
handler.cancel();
return;
}
CmsClientSitemapEntry parent = CmsSitemapView.getInstance().getController().getEntry(m_insertPath);
if (draggable instanceof CmsSitemapTreeItem) {
handleDropSitemapEntry((CmsSitemapTreeItem)draggable, target, parent);
}
if (draggable instanceof CmsCreatableListItem) {
handleDropNewEntry((CmsCreatableListItem)draggable, parent);
}
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
/**
* @see com.google.gwt.user.client.Command#execute()
*/
public void execute() {
CmsSitemapView.getInstance().getTree().closeAllEmpty();
}
});
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onPositionedPlaceholder(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public void onPositionedPlaceholder(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
if (draggable instanceof CmsSitemapTreeItem) {
adjustOriginalPositionIndicator((CmsSitemapTreeItem)draggable, target, handler);
}
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onTargetEnter(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public boolean onTargetEnter(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
return true;
}
/**
* @see org.opencms.gwt.client.dnd.I_CmsDNDController#onTargetLeave(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)
*/
public void onTargetLeave(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler) {
if (target instanceof CmsTree<?>) {
((CmsTree<?>)target).cancelOpenTimer();
}
}
/**
* Adjust the original position indicator by styling the draggable element for this purpose.<p>
*
* @param draggable the draggable
* @param target the current drop target
* @param handler the drag and drop handler
*/
private void adjustOriginalPositionIndicator(
CmsSitemapTreeItem draggable,
I_CmsDropTarget target,
CmsDNDHandler handler) {
if (!isChangedPosition(draggable, target, true)) {
draggable.getElement().addClassName(I_CmsSitemapLayoutBundle.INSTANCE.sitemapItemCss().markUnchanged());
List<Element> itemWidget = CmsDomUtil.getElementsByClass(
org.opencms.gwt.client.ui.css.I_CmsLayoutBundle.INSTANCE.listItemWidgetCss().itemContainer(),
handler.getPlaceholder());
if ((itemWidget != null) && (itemWidget.size() > 0)) {
CmsDomUtil.addDisablingOverlay(itemWidget.get(0));
}
} else {
draggable.getElement().removeClassName(I_CmsSitemapLayoutBundle.INSTANCE.sitemapItemCss().markUnchanged());
CmsDomUtil.removeDisablingOverlay(handler.getPlaceholder());
}
}
/**
* Handles a dropped detail page.<p>
*
* @param createItem the detail page which was dropped into the sitemap
* @param parent the parent sitemap entry
*/
private void handleDropNewEntry(CmsCreatableListItem createItem, CmsClientSitemapEntry parent) {
CmsNewResourceInfo typeInfo = createItem.getResourceTypeInfo();
CmsClientSitemapEntry entry = new CmsClientSitemapEntry();
entry.setNew(true);
entry.setVfsPath(null);
entry.setPosition(m_insertIndex);
entry.setInNavigation(true);
entry.setDefaultFileProperties(Collections.<String, CmsClientProperty> emptyMap());
String uniqueName = null;
switch (createItem.getNewEntryType()) {
case detailpage:
uniqueName = m_controller.ensureUniqueName(
parent,
CmsDetailPageInfo.removeFunctionPrefix(typeInfo.getTypeName()));
entry.setName(uniqueName);
entry.setSitePath(m_insertPath + uniqueName + "/");
entry.setDetailpageTypeName(typeInfo.getTypeName());
entry.setResourceTypeName("folder");
break;
case redirect:
uniqueName = m_controller.ensureUniqueName(parent, typeInfo.getTypeName());
entry.setName(uniqueName);
entry.setEntryType(EntryType.redirect);
entry.setSitePath(m_insertPath + uniqueName);
entry.setResourceTypeName(typeInfo.getTypeName());
break;
default:
uniqueName = m_controller.ensureUniqueName(parent, CmsSitemapController.NEW_ENTRY_NAME);
entry.setName(uniqueName);
entry.getOwnProperties().put(
CmsClientProperty.PROPERTY_TITLE,
new CmsClientProperty(
CmsClientProperty.PROPERTY_TITLE,
CmsSitemapController.NEW_ENTRY_NAME,
CmsSitemapController.NEW_ENTRY_NAME));
entry.setSitePath(m_insertPath + uniqueName + "/");
entry.setResourceTypeName("folder");
}
m_controller.create(
entry,
parent.getId(),
typeInfo.getId(),
typeInfo.getCopyResourceId(),
typeInfo.getCreateParameter());
}
/**
* Handles the drop for a sitemap item which was dragged to a different position.<p>
*
* @param sitemapEntry the dropped item
* @param target the drop target
* @param parent the parent sitemap entry
*/
private void handleDropSitemapEntry(
CmsSitemapTreeItem sitemapEntry,
I_CmsDropTarget target,
CmsClientSitemapEntry parent) {
if (isChangedPosition(sitemapEntry, target, true)) {
// moving a tree entry around
CmsClientSitemapEntry entry = sitemapEntry.getSitemapEntry();
String uniqueName = m_controller.ensureUniqueName(parent, entry.getName());
if (!uniqueName.equals(entry.getName()) && isChangedPosition(sitemapEntry, target, false)) {
m_controller.editAndChangeName(
entry,
uniqueName,
Collections.<CmsPropertyModification> emptyList(),
entry.isNew(),
CmsReloadMode.none);
m_controller.move(entry, m_insertPath + uniqueName + "/", m_insertIndex);
} else {
CmsDebugLog.getInstance().printLine(
"inserting at " + m_insertPath + entry.getName() + "/ and index " + m_insertIndex);
m_controller.move(entry, m_insertPath + entry.getName() + "/", m_insertIndex);
}
} else {
sitemapEntry.resetEntry();
}
}
/**
* Hides the content of list items by setting a specific css class.<p>
*
* @param element the list item element
*/
private void hideItemContent(Element element) {
List<Element> itemWidget = CmsDomUtil.getElementsByClass(
org.opencms.gwt.client.ui.css.I_CmsLayoutBundle.INSTANCE.listItemWidgetCss().itemContainer(),
element);
if ((itemWidget != null) && (itemWidget.size() > 0)) {
itemWidget.get(0).addClassName(I_CmsSitemapLayoutBundle.INSTANCE.sitemapItemCss().contentHide());
}
}
/**
* Checks whether the current placeholder position represents a change to the original draggable position within the tree.<p>
*
* @param draggable the draggable
* @param target the current drop target
* @param strict if <code>false</code> only the parent path is considered, the index position will be ignored
*
* @return <code>true</code> if the position changed
*/
private boolean isChangedPosition(I_CmsDraggable draggable, I_CmsDropTarget target, boolean strict) {
// if draggable is not a sitemap item, any valid position is a changed position
if (!((draggable instanceof CmsSitemapTreeItem) && (target instanceof CmsTree<?>))) {
return true;
}
String placeholderPath = ((CmsTree<?>)target).getPlaceholderPath();
if ((placeholderPath == null) && !strict) {
// first positioning, path has not changed yet
return false;
}
// if the the path differs, the position has changed
if ((m_originalPath == null) || !m_originalPath.equals(placeholderPath)) {
return true;
}
// if the new index is not next to the old one, the position has changed
if (!((target.getPlaceholderIndex() == (m_originalIndex + 1)) || (target.getPlaceholderIndex() == m_originalIndex))
&& strict) {
return true;
}
return false;
}
}