/*
* 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.HashMap;
import java.util.List;
import java.util.Map;
import org.jbpm.formapi.client.FormBuilderException;
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.items.AbsolutePanelRepresentation;
import org.jbpm.formbuilder.client.FormBuilderGlobals;
import org.jbpm.formbuilder.client.messages.I18NConstants;
import com.google.gwt.user.client.ui.AbsolutePanel;
import com.google.gwt.user.client.ui.HasWidgets;
import com.google.gwt.user.client.ui.Widget;
import com.gwtent.reflection.client.Reflectable;
/**
* UI form layout item. Represents an absolute layout
*/
@Reflectable
public class AbsoluteLayoutFormItem extends LayoutFormItem {
private final I18NConstants i18n = FormBuilderGlobals.getInstance().getI18n();
private AbsolutePanel panel = new AbsolutePanel() {
@Override
public boolean remove(Widget widget) {
if (widget instanceof FBFormItem) {
AbsoluteLayoutFormItem.this.remove(widget);
}
return super.remove(widget);
}
};
private String id;
public AbsoluteLayoutFormItem() {
this(new ArrayList<FBFormEffect>());
}
public AbsoluteLayoutFormItem(List<FBFormEffect> formEffects) {
super(formEffects);
add(panel);
setSize("90px", "90px");
panel.setSize(getWidth(), getHeight());
}
@Override
public Map<String, Object> getFormItemPropertiesMap() {
Map<String, Object> map = new HashMap<String, Object>();
map.put("id", this.id);
map.put("height", getHeight());
map.put("width", getWidth());
return map;
}
@Override
public void saveValues(Map<String, Object> asPropertiesMap) {
this.id = extractString(asPropertiesMap.get("id"));
this.setHeight(extractString(asPropertiesMap.get("height")));
this.setWidth(extractString(asPropertiesMap.get("width")));
populate(this.panel);
}
private void populate(AbsolutePanel panel) {
if (this.getHeight() != null) {
panel.setHeight(this.getHeight());
}
if (this.getWidth() != null) {
panel.setWidth(this.getWidth());
}
}
@Override
public FormItemRepresentation getRepresentation() {
AbsolutePanelRepresentation rep = super.getRepresentation(new AbsolutePanelRepresentation());
rep.setId(this.id);
for (FBFormItem item : getItems()) {
rep.addItem(item.getRepresentation(),
item.getDesiredX() - panel.getAbsoluteLeft(),
item.getDesiredY() - panel.getAbsoluteTop());
}
return rep;
}
@Override
public void populate(FormItemRepresentation rep) throws FormBuilderException {
if (!(rep instanceof AbsolutePanelRepresentation)) {
throw new FormBuilderException(i18n.RepNotOfType(rep.getClass().getName(), "AbsolutePanelRepresentation"));
}
super.populate(rep);
AbsolutePanelRepresentation arep = (AbsolutePanelRepresentation) rep;
panel.clear();
getItems().clear();
if (arep.getItems() != null) {
for (Map.Entry<AbsolutePanelRepresentation.Position, FormItemRepresentation> entry : arep.getItems().entrySet()) {
FBFormItem item = super.createItem(entry.getValue());
item.setDesiredPosition(entry.getKey().getX(), entry.getKey().getY());
this.add(item);
}
}
populate(this.panel);
}
@Override
public FBFormItem cloneItem() {
AbsoluteLayoutFormItem clone = new AbsoluteLayoutFormItem(getFormEffects());
clone.setHeight(this.getHeight());
clone.id = this.id;
clone.setWidth(this.getWidth());
clone.populate(clone.panel);
for (FBFormItem item : getItems()) {
clone.add(item.cloneItem());
}
return clone;
}
@Override
public boolean add(FBFormItem item) {
int left = item.getDesiredX();
int top = item.getDesiredY();
panel.add(item, left - panel.getAbsoluteLeft(), top - panel.getAbsoluteTop());
return super.add(item);
}
@Override
public boolean remove(Widget child) {
return super.remove(child);
}
@Override
public HasWidgets getPanel() {
return this.panel;
}
@Override
public Widget cloneDisplay(Map<String, Object> data) {
AbsolutePanel ap = new AbsolutePanel();
populate(ap);
for (FBFormItem item : getItems()) {
ap.add(item.cloneDisplay(data), this.getAbsoluteLeft() - item.getDesiredX(), this.getAbsoluteTop() - item.getDesiredY());
}
super.populateActions(ap.getElement());
return ap;
}
private String oldStyleName = null;
@Override
public void add(PhantomPanel phantom, int x, int y) {
String styleName = phantom.getStyleName();
oldStyleName = getStyleName();
setStyleName(styleName);
}
@Override
public void replacePhantom(FBFormItem item) {
if (oldStyleName == null) {
removeStyleName(getStyleName());
} else {
setStyleName(oldStyleName);
}
oldStyleName = null;
add(item);
}
}