/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.cocoon.forms.formmodel;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import org.apache.cocoon.forms.FormContext;
import org.apache.cocoon.forms.FormsConstants;
import org.apache.cocoon.forms.event.ValueChangedEvent;
import org.apache.cocoon.forms.event.WidgetEvent;
import org.apache.cocoon.xml.AttributesImpl;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
/**
* @version $Id$
*/
public class GoogleMap extends AbstractWidget {
private static final String GOOGLEMAP_FIELD_EL = "googlemap";
private static final String VALUE_EL = "value";
private static final String MARKERS_EL = "markers";
private static final String MARKER_EL = "marker";
private static final String USERMARKER_EL = "usermarker";
private static final String MARKER_TEXT_EL = "text";
private GoogleMapValue value;
private final GoogleMapDefinition definition;
public GoogleMap(GoogleMapDefinition definition) {
super(definition);
this.definition = definition;
}
public WidgetDefinition getDefinition() {
return this.definition;
}
public void initialize() {
GoogleMapValue value = this.definition.getInitialValue();
if (value != null) {
setValue(value);
}
super.initialize();
}
public void readFromRequest(FormContext formContext) {
if (!getCombinedState().isAcceptingInputs()) {
return;
}
final String prefix = getRequestParameterName();
String paramLng = formContext.getRequest().getParameter(prefix + "_lng");
String paramLat = formContext.getRequest().getParameter(prefix + "_lat");
String paramZoom = formContext.getRequest().getParameter(prefix + "_zoom");
String currentMarker = formContext.getRequest().getParameter(prefix + "_current");
String userMarkerLng = formContext.getRequest().getParameter(prefix + "_usermarker-lng");
String userMarkerLat = formContext.getRequest().getParameter(prefix + "_usermarker-lat");
GoogleMapValue newValue = new GoogleMapValue();
newValue.setLng(Float.valueOf(paramLng).floatValue());
newValue.setLat(Float.valueOf(paramLat).floatValue());
newValue.setZoom(Integer.valueOf(paramZoom).intValue());
newValue.setCurrentMarker(Integer.valueOf(currentMarker).intValue());
newValue.setMarkers(this.value.getMarkers());
if (userMarkerLng != null && userMarkerLat != null) {
try {
GoogleMapMarker marker = new GoogleMapMarker();
marker.setLng(Float.valueOf(userMarkerLng).floatValue());
marker.setLat(Float.valueOf(userMarkerLat).floatValue());
newValue.setUsermarker(marker);
} catch (NumberFormatException e) { /* ignored */ }
}
GoogleMapValue oldValue = this.value;
value = newValue;
if (!value.equals(oldValue)) {
getForm().addWidgetEvent(new ValueChangedEvent(this, oldValue, value));
}
}
/**
* @return "googlemap"
*/
public String getXMLElementName() {
return GOOGLEMAP_FIELD_EL;
}
public void generateItemSaxFragment(ContentHandler contentHandler, Locale locale) throws SAXException {
// value element
AttributesImpl attributesImpl = new AttributesImpl();
attributesImpl.addAttribute("","lng","lng","CDATA",this.value.getLng()+"");
attributesImpl.addAttribute("","lat","lat","CDATA",this.value.getLat()+"");
attributesImpl.addAttribute("","zoom","zoom","CDATA",this.value.getZoom()+"");
attributesImpl.addAttribute("","current","current","CDATA",this.value.getCurrentMarker()+"");
contentHandler.startElement(FormsConstants.INSTANCE_NS, VALUE_EL, FormsConstants.INSTANCE_PREFIX_COLON + VALUE_EL, attributesImpl);
// usermarker
if (this.value.getUsermarker() != null) {
attributesImpl = new AttributesImpl();
attributesImpl.addAttribute("","lng","lng","CDATA",this.value.getUsermarker().getLng()+"");
attributesImpl.addAttribute("","lat","lat","CDATA",this.value.getUsermarker().getLat()+"");
contentHandler.startElement(FormsConstants.INSTANCE_NS, USERMARKER_EL, FormsConstants.INSTANCE_PREFIX_COLON + USERMARKER_EL, attributesImpl);
contentHandler.endElement(FormsConstants.INSTANCE_NS, USERMARKER_EL, FormsConstants.INSTANCE_PREFIX_COLON + USERMARKER_EL);
}
// markers
List markers = this.value.getMarkers();
if (markers != null) {
contentHandler.startElement(FormsConstants.INSTANCE_NS, MARKERS_EL, FormsConstants.INSTANCE_PREFIX_COLON + MARKERS_EL, new AttributesImpl());
for (Iterator iter = markers.iterator(); iter.hasNext();) {
GoogleMapMarker marker = (GoogleMapMarker) iter.next();
attributesImpl = new AttributesImpl();
attributesImpl.addAttribute("","lng","lng","CDATA",marker.getLng()+"");
attributesImpl.addAttribute("","lat","lat","CDATA",marker.getLat()+"");
contentHandler.startElement(FormsConstants.INSTANCE_NS, MARKER_EL, FormsConstants.INSTANCE_PREFIX_COLON + MARKER_EL, attributesImpl);
contentHandler.startElement(FormsConstants.INSTANCE_NS, MARKER_TEXT_EL, FormsConstants.INSTANCE_PREFIX_COLON + MARKER_TEXT_EL, new AttributesImpl());
marker.getText().toSAX(contentHandler);
contentHandler.endElement(FormsConstants.INSTANCE_NS, MARKER_TEXT_EL, FormsConstants.INSTANCE_PREFIX_COLON + MARKER_TEXT_EL);
contentHandler.endElement(FormsConstants.INSTANCE_NS, MARKER_EL, FormsConstants.INSTANCE_PREFIX_COLON + MARKER_EL);
}
contentHandler.endElement(FormsConstants.INSTANCE_NS, MARKERS_EL, FormsConstants.INSTANCE_PREFIX_COLON + MARKERS_EL);
}
contentHandler.endElement(FormsConstants.INSTANCE_NS, VALUE_EL, FormsConstants.INSTANCE_PREFIX_COLON + VALUE_EL);
}
public Object getValue() {
return value;
}
/**
* Sets value of the field. If value is null, it is considered to be false
* (see class comment).
*/
public void setValue(Object object) {
if (!(object instanceof GoogleMapValue)) {
throw new RuntimeException("Cannot set value of googlemap \"" + getRequestParameterName() + "\" to a non-GoogleMapValue.");
}
Object oldValue = value;
value = (GoogleMapValue)object;
if (!value.equals(oldValue)) {
Form form = getForm();
form.addWidgetUpdate(this);
}
}
public void broadcastEvent(WidgetEvent event) {
if (event instanceof ValueChangedEvent) {
//
} else {
// Other kinds of events
super.broadcastEvent(event);
}
}
}