/*
* Copyright 2011 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jbpm.formbuilder.client.form.items;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jbpm.formapi.client.CommonGlobals;
import org.jbpm.formapi.client.FormBuilderException;
import org.jbpm.formapi.client.bus.ui.NotificationEvent;
import org.jbpm.formapi.client.bus.ui.NotificationEvent.Level;
import org.jbpm.formapi.client.effect.FBFormEffect;
import org.jbpm.formapi.client.form.FBFormItem;
import org.jbpm.formapi.client.form.LayoutFormItem;
import org.jbpm.formapi.client.form.PhantomPanel;
import org.jbpm.formapi.shared.api.FormItemRepresentation;
import org.jbpm.formapi.shared.api.InputData;
import org.jbpm.formapi.shared.api.items.LoopBlockRepresentation;
import org.jbpm.formbuilder.client.FormBuilderGlobals;
import org.jbpm.formbuilder.client.messages.I18NConstants;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HasWidgets;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.Widget;
import com.gwtent.reflection.client.Reflectable;
/**
* server-side form item. Represents a loop block
*/
@Reflectable
public class LoopBlockFormItem extends LayoutFormItem {
private String variableName;
private SimplePanel loopBlock = new SimplePanel();
private final EventBus bus = CommonGlobals.getInstance().getEventBus();
private final I18NConstants i18n = FormBuilderGlobals.getInstance().getI18n();
public LoopBlockFormItem() {
this(new ArrayList<FBFormEffect>());
}
public LoopBlockFormItem(List<FBFormEffect> formEffects) {
super(formEffects);
loopBlock.setStyleName("loopBlockBorder");
loopBlock.setSize("100%", "50px");
add(loopBlock);
setSize("100%", "50px");
}
@Override
public Map<String, Object> getFormItemPropertiesMap() {
Map<String, Object> map = new HashMap<String, Object>();
map.put("variableName", this.variableName);
return map;
}
@Override
public void saveValues(Map<String, Object> asPropertiesMap) {
this.variableName = extractString(asPropertiesMap.get("variableName"));
}
@Override
public FormItemRepresentation getRepresentation() {
LoopBlockRepresentation rep = getRepresentation(new LoopBlockRepresentation());
rep.setInputName(getInput() == null ? null : getInput().getName());
FBFormItem loopItem = (FBFormItem) this.loopBlock.getWidget();
if (loopItem != null) {
rep.setLoopBlock(loopItem.getRepresentation());
}
rep.setVariableName(this.variableName);
return rep;
}
@Override
public void populate(FormItemRepresentation rep) throws FormBuilderException {
if (!(rep instanceof LoopBlockRepresentation)) {
throw new FormBuilderException(i18n.RepNotOfType(rep.getClass().getName(), "LoopBlockRepresentation"));
}
super.populate(rep);
LoopBlockRepresentation lrep = (LoopBlockRepresentation) rep;
this.variableName = lrep.getVariableName();
this.loopBlock.clear();
if (lrep.getInputName() != null && !"".equals(lrep.getInputName())) {
InputData input = new InputData();
input.setName(lrep.getInputName());
lrep.setInput(input);
}
if (lrep.getLoopBlock() != null) {
FBFormItem child = super.createItem(lrep.getLoopBlock());
this.loopBlock.add(child);
}
}
@Override
public FBFormItem cloneItem() {
LoopBlockFormItem clone = super.cloneItem(new LoopBlockFormItem(getFormEffects()));
FBFormItem loopItem = (FBFormItem) this.loopBlock.getWidget();
clone.add(loopItem);
clone.variableName = this.variableName;
return clone;
}
@Override
public Widget cloneDisplay(Map<String, Object> data) {
FlowPanel display = new FlowPanel();
FBFormItem subItem = (FBFormItem) loopBlock.getWidget();
Object input = getInputValue(data);
String inputName = getInput() == null ? null : getInput().getName();
if (subItem != null && input != null && inputName != null) {
Map<String, Object> subData = new HashMap<String, Object>();
if (input.getClass().isArray()) {
Object[] arr = (Object[]) input;
for (Object obj : arr) {
subData.put(inputName, obj);
display.add(subItem.cloneDisplay(subData));
}
} else if (input instanceof Collection) {
Collection<?> col = (Collection<?>) input;
for (Object obj : col) {
subData.put(inputName, obj);
display.add(subItem.cloneDisplay(subData));
}
} else if (input instanceof Map) {
Map<?,?> map = (Map<?,?>) input;
for (Object obj : map.entrySet()) {
subData.put(inputName, obj);
display.add(subItem.cloneDisplay(subData));
}
}
}
display.setSize(getWidth(), getHeight());
super.populateActions(display.getElement());
return display;
}
@Override
public HasWidgets getPanel() {
return loopBlock;
}
@Override
public boolean add(FBFormItem item) {
if (loopBlock.getWidget() == null) {
loopBlock.setWidget(item);
return super.add(item);
} else {
bus.fireEvent(new NotificationEvent(Level.WARN, i18n.LoopBlockFull()));
return false;
}
}
@Override
public void add(PhantomPanel phantom, int x, int y) {
if (loopBlock.getWidget() == null) {
loopBlock.setWidget(phantom);
}
}
@Override
public void replacePhantom(FBFormItem item) {
if (loopBlock.getWidget() == null || loopBlock.getWidget() instanceof PhantomPanel) {
loopBlock.remove(loopBlock.getWidget());
loopBlock.setWidget(item);
}
}
}