/*
* JBoss, Home of Professional Open Source
* Copyright ${year}, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This 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 software 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.renderkit;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import javax.faces.application.ResourceDependencies;
import javax.faces.application.ResourceDependency;
import javax.faces.component.ContextCallback;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import org.ajax4jsf.javascript.JSFunctionDefinition;
import org.ajax4jsf.javascript.JSReference;
import org.richfaces.cdk.annotations.JsfRenderer;
import org.richfaces.component.AbstractDragSource;
import org.richfaces.component.AbstractDropTarget;
import org.richfaces.event.DropEvent;
import org.richfaces.javascript.DnDScript;
import org.richfaces.javascript.DropScript;
import org.richfaces.renderkit.util.AjaxRendererUtils;
import org.richfaces.util.Sets;
import com.google.common.base.Strings;
/**
* @author abelevich
*
*/
@ResourceDependencies({ @ResourceDependency(library = "javax.faces", name = "jsf.js"),
@ResourceDependency(library = "org.richfaces", name = "jquery.js"),
@ResourceDependency(library = "org.richfaces", name = "richfaces.js"),
@ResourceDependency(library = "org.richfaces", name = "richfaces-queue.reslib"),
@ResourceDependency(library = "org.richfaces", name = "richfaces-base-component.js"),
@ResourceDependency(library = "org.richfaces", name = "richfaces-event.js"),
@ResourceDependency(library = "com.jqueryui", name = "jquery.ui.core.js"),
@ResourceDependency(library = "com.jqueryui", name = "jquery.ui.widget.js"),
@ResourceDependency(library = "com.jqueryui", name = "jquery.ui.mouse.js"),
@ResourceDependency(library = "com.jqueryui", name = "jquery.ui.draggable.js"),
@ResourceDependency(library = "com.jqueryui", name = "jquery.ui.droppable.js"),
@ResourceDependency(library = "org.richfaces", name = "dnd-droppable.js") })
@JsfRenderer(type = "org.richfaces.DropTargetRenderer", family = AbstractDropTarget.COMPONENT_FAMILY)
public class DropTargetRenderer extends DnDRenderBase {
/**
*
*/
private static final Set<String> ALL_SET = Collections.singleton("@all");
/**
*
*/
private static final Set<String> NONE_SET = Collections.singleton("@none");
@Override
protected void doDecode(FacesContext facesContext, UIComponent component) {
Map<String, String> requestParamMap = facesContext.getExternalContext().getRequestParameterMap();
if (requestParamMap.get(component.getClientId(facesContext)) == null) {
return;
}
String dragSourceId = (String) requestParamMap.get("dragSource");
if (Strings.isNullOrEmpty(dragSourceId)) {
return;
}
DragSourceContextCallBack dragSourceContextCallBack = new DragSourceContextCallBack();
boolean invocationResult = facesContext.getViewRoot().invokeOnComponent(facesContext, dragSourceId,
dragSourceContextCallBack);
if (!invocationResult) {
// TODO - log
return;
}
AbstractDropTarget dropTarget = (AbstractDropTarget) component;
new DropEvent(dropTarget, dropTarget.getDropValue(), dragSourceContextCallBack.getDragSource(),
dragSourceContextCallBack.getDragValue()).queue();
}
private final class DragSourceContextCallBack implements ContextCallback {
private AbstractDragSource dragSource;
private Object dragValue;
public void invokeContextCallback(FacesContext context, UIComponent target) {
if (target instanceof AbstractDragSource) {
this.dragSource = (AbstractDragSource) target;
this.dragValue = this.dragSource.getDragValue();
}
}
public AbstractDragSource getDragSource() {
return dragSource;
}
public Object getDragValue() {
return dragValue;
}
}
@Override
public DnDScript createScript(String name) {
return new DropScript(name);
}
@Override
public Map<String, Object> getOptions(FacesContext facesContext, UIComponent component) {
Map<String, Object> options = new HashMap<String, Object>();
if (component instanceof AbstractDropTarget) {
JSReference dragSourceId = new JSReference("dragSourceId");
JSFunctionDefinition function = new JSFunctionDefinition(JSReference.EVENT, dragSourceId);
AjaxFunction ajaxFunction = AjaxRendererUtils.buildAjaxFunction(facesContext, component);
ajaxFunction.getOptions().setParameter("dragSource", dragSourceId);
ajaxFunction.getOptions().setParameter(component.getClientId(facesContext), component.getClientId(facesContext));
ajaxFunction.setSource(new JSReference("event", "target"));
ajaxFunction.getOptions().setAjaxComponent(component.getClientId(facesContext));
function.addToBody(ajaxFunction);
AbstractDropTarget dropTarget = (AbstractDropTarget) component;
Set<String> acceptedTypes = Sets.asSet(dropTarget.getAcceptedTypes());
if (acceptedTypes != null) {
if (acceptedTypes.contains("@none")) {
acceptedTypes = NONE_SET;
} else if (acceptedTypes.contains("@all")) {
acceptedTypes = ALL_SET;
}
}
options.put("acceptedTypes", acceptedTypes);
options.put("ajaxFunction", function);
options.put("parentId", getParentClientId(facesContext, component));
}
return options;
}
@Override
public String getScriptName() {
return "new RichFaces.ui.Droppable";
}
}