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${icefaces.product.name} ACE Component Library
/*
* Copyright 2004-2014 ICEsoft Technologies Canada Corp.
*
* 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.icefaces.ace.component.gmap;
import org.icefaces.ace.renderkit.CoreRenderer;
import org.icefaces.ace.util.HTML;
import org.icefaces.ace.util.JSONBuilder;
import org.icefaces.render.MandatoryResourceComponent;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
@MandatoryResourceComponent(tagName = "gMap", value = "org.icefaces.ace.component.gmap.GMap")
public class GMapRenderer extends CoreRenderer {
public void decode(FacesContext context, UIComponent component) {
Map requestParameterMap = context.getExternalContext().getRequestParameterMap();
GMap map = (GMap) component;
String clientId = map.getClientId(context);
String lat = String.valueOf(requestParameterMap.get(clientId + "_lat"));
String lng = String.valueOf(requestParameterMap.get(clientId + "_lng"));
String zoom = String.valueOf(requestParameterMap.get(clientId + "_zoom"));
String type = String.valueOf(requestParameterMap.get(clientId + "_type"));
if (lat != null && !lat.equals("") && !lat.equals("null")) {
map.setLatitude(lat);
}
if (lng != null && !lng.equals("") && !lng.equals("null")) {
map.setLongitude(lng);
}
if (zoom != null && !zoom.equals("") && !zoom.equals("null")) {
map.setZoomLevel(zoom);
}
if (type != null && !type.equals("") && !type.equals("null")) {
map.setType(type);
}
}
public void encodeBegin(FacesContext context, UIComponent component)
throws IOException {
ResponseWriter writer = context.getResponseWriter();
String clientId = component.getClientId(context);
GMap gmap = (GMap) component;
writer.startElement("div", null);
writer.writeAttribute("id", clientId + "_wrapper", null);
writer.writeAttribute("class", "ice-ace-gmap " + gmap.getStyleClass(), null);
writer.writeAttribute("style", gmap.getStyle(), null);
String accesskey = gmap.getAccesskey();
if (accesskey != null) {
writer.writeAttribute("accesskey", accesskey, null);
writer.writeAttribute("tabindex", "0", null);
writer.writeAttribute("onclick", "this.focus();", null);
}
writer.startElement("div", component);
writer.writeAttribute("id", clientId, null);
writer.writeAttribute("style", "height:100%; width:100%", null);
writer.endElement("div");
writer.endElement("div");
makeFields(writer, clientId, "lat");
makeFields(writer, clientId, "lng");
makeFields(writer, clientId, "type");
makeFields(writer, clientId, "zoom");
writer.startElement("span", null);
writer.writeAttribute("id", clientId + "_script", null);
writer.startElement("script", null);
writer.writeAttribute("type", "text/javascript", null);
writer.write("ice.ace.jq(function() {");
JSONBuilder jb;
if ((gmap.isLocateAddress() || !gmap.isInitialized()) && (gmap.getAddress() != null && gmap.getAddress().length() > 2)) {
jb = JSONBuilder.create();
jb.beginFunction("ice.ace.gMap.locateAddress").item(clientId).item(gmap.getAddress()).endFunction();
writer.write(jb.toString());
} else {
writer.write("ice.ace.gMap.getGMapWrapper('" + clientId + "').getRealGMap().setCenter(new google.maps.LatLng(" + gmap.getLatitude() + "," + gmap.getLongitude() + "));");
}
writer.write("ice.ace.gMap.getGMapWrapper('" + clientId + "').getRealGMap().setZoom(" + gmap.getZoomLevel() + ");");
jb = JSONBuilder.create();
jb.beginFunction("ice.ace.gMap.setMapType").item(clientId).item(gmap.getType().toUpperCase()).endFunction();
writer.write(jb.toString());
if (gmap.getOptions() != null && gmap.getOptions().length() > 1) {
jb = JSONBuilder.create();
jb.beginFunction("ice.ace.gMap.addOptions").item(clientId).item(gmap.getOptions()).endFunction();
writer.write(jb.toString());
}
if (gmap.getParent().getClass().getSimpleName().equalsIgnoreCase("HtmlPanelGrid")) {
writer.write("google.maps.event.addDomListener(ice.ace.gMap.getGMapWrapper('" + clientId + "').getRealGMap(),'bounds_changed', " +
"function(){" +
"var mapCenter = ice.ace.gMap.getGMapWrapper('" + clientId + "').getRealGMap().getCenter();" +
"google.maps.event.trigger(ice.ace.gMap.getGMapWrapper('" + clientId + "').getRealGMap(),'resize');" +
"ice.ace.gMap.getGMapWrapper('" + clientId + "').getRealGMap().setCenter(mapCenter);});");
}
writer.write("});");
writer.endElement("script");
writer.endElement("span");
gmap.setInitialized(true);
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
if (context == null || component == null) {
throw new NullPointerException();
}
if (component.getChildCount() == 0) return;
Iterator kids = component.getChildren().iterator();
while (kids.hasNext()) {
UIComponent kid = (UIComponent) kids.next();
kid.encodeBegin(context);
if (kid.getRendersChildren()) {
kid.encodeChildren(context);
}
kid.encodeEnd(context);
}
}
@Override
public boolean getRendersChildren() {
return true;
}
public void makeFields(ResponseWriter writer, String clientId, String fieldName) throws IOException {
writer.startElement("input", null);
writer.writeAttribute("type", "hidden", null);
writer.writeAttribute("id", clientId + "_" + fieldName, null);
writer.writeAttribute("name", clientId + "_" + fieldName, null);
writer.writeAttribute(HTML.AUTOCOMPLETE_ATTR, "off", null);
writer.endElement("input");
}
protected static String getMapClientId(FacesContext context, UIComponent component) {
UIComponent parent = component.getParent();
while(parent != null) {
if (parent instanceof GMap) break;
parent = parent.getParent();
}
if (parent != null) return parent.getClientId(context);
else return "";
}
}