Some work on the geocoder, but doesn't work yet.

src/com/googlecode/maps3/client/MapWidget.java

@@ -21,6 +21,12 @@ public MapWidget(MapOptions opts)
 		this.map = MapJSO.newInstance(this.getElement(), opts);
 	}
 
+	/** */
+	public MapJSO getMapJSO()
+	{
+		return this.map;
+	}
+
 	/**
 	 * Note:  Call this *after* you add it to a LayoutPanel
 	 */
@@ -52,5 +58,5 @@ private void forceParentLayout(Widget w)
 	public void addListener(MapEventType type, Runnable handler)
 	{
 		this.map.addListener(type.getUnderlying(), handler);
-	}
+	}	
 }

src/com/googlecode/maps3/client/auto/Geocoder.java

@@ -30,25 +30,22 @@ public class Geocoder extends JavaScriptObject {
    * @return An instance of Geocoder.
    */
   public static native Geocoder newInstance() /*-{
-    return new $wnd.Geocoder();
+    return new $wnd.google.maps.Geocoder();
   }-*/;
 
   protected Geocoder() { }
 
   /**
    * Geocode a request.
    * 
-   * @param request
-   * @param callback
-   * 
-   * TODO: Replace type Runnable with implementation of function(Array<GeocoderResponse>.
-   * TODO: Missing comments for parameter callback.
-   * TODO: Missing comments for parameter request.
+   * @param request defines the request that will be made
+   * @param callback will be called with whatever the geocoder returns
    */
-  public final native void geocode(GeocoderRequest request, Runnable callback) /*-{
+  public final native void geocode(GeocoderRequest request, GeocoderCallback callback) /*-{
     this.geocode(
-      request,
-      callback
+      request, function(results, status) {
+      	[email protected]::callback([Lcom/googlecode/maps3/client/auto/GeocoderResponse;Lcom/googlecode/maps3/client/auto/GeocoderStatus;)(results, status);
+      }
     );
   }-*/;
 

src/com/googlecode/maps3/client/auto/GeocoderCallback.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2009 Google 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 com.googlecode.maps3.client.auto;
+
+/**
+ * Interface called by the geocoder when results arrive.
+ * @author Jeff Schnitzer <[email protected]>
+ */
+public interface GeocoderCallback {
+
+  /**
+   * Result of the query is now available
+   */
+  public void callback(GeocoderResponse[] responses, GeocoderStatus status);
+}

src/com/googlecode/maps3/client/auto/GeocoderRequest.java

@@ -30,11 +30,9 @@ public class GeocoderRequest extends JavaScriptObject {
    * Instantiates a GeocoderRequest object.
    * 
    * @return An instance of GeocoderRequest.
-   * 
-   * TODO: This class did not have a specified constructor in JavaScript. Consider removing factory method.
    */
   public static native GeocoderRequest newInstance() /*-{
-    return new $wnd.GeocoderRequest();
+    return {};
   }-*/;
 
   protected GeocoderRequest() { }

src/com/googlecode/maps3/client/auto/GeocoderStatus.java

@@ -67,11 +67,11 @@ public class GeocoderStatus extends JavaScriptObject {
    * TODO: This class contains only static members. Consider removing factory method.
    */
   public static native GeocoderStatus newInstance() /*-{
-    return new $wnd.GeocoderStatus();
+    return new $wnd.google.maps.GeocoderStatus();
   }-*/;
 
   private static native String getConstant(String name) /*-{
-    return $wnd.GeocoderStatus[name];
+    return $wnd.google.maps.GeocoderStatus[name];
   }-*/;
 
   protected GeocoderStatus() { }

src/com/googlecode/maps3/demo/client/Demo.java

@@ -1,11 +1,26 @@
 package com.googlecode.maps3.demo.client;
 
 import com.google.gwt.core.client.EntryPoint;
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.dom.client.Style.Unit;
+import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.event.dom.client.ClickHandler;
+import com.google.gwt.user.client.Window;
+import com.google.gwt.user.client.ui.Button;
+import com.google.gwt.user.client.ui.DockLayoutPanel;
+import com.google.gwt.user.client.ui.FlowPanel;
 import com.google.gwt.user.client.ui.RootLayoutPanel;
+import com.google.gwt.user.client.ui.TextBox;
+import com.googlecode.maps3.client.InfoWindow;
 import com.googlecode.maps3.client.LatLng;
 import com.googlecode.maps3.client.LatLngBounds;
 import com.googlecode.maps3.client.MapOptions;
 import com.googlecode.maps3.client.MapWidget;
+import com.googlecode.maps3.client.auto.Geocoder;
+import com.googlecode.maps3.client.auto.GeocoderCallback;
+import com.googlecode.maps3.client.auto.GeocoderRequest;
+import com.googlecode.maps3.client.auto.GeocoderResponse;
+import com.googlecode.maps3.client.auto.GeocoderStatus;
 
 /**
  * Entry point classes define <code>onModuleLoad()</code>.
@@ -22,15 +37,73 @@ public void onModuleLoad()
 //		opts.setCenter(LatLng.newInstance(37.760773,-122.434448));
 //		opts.setZoom(14);
 
-		MapWidget map = new MapWidget(opts);
+		DockLayoutPanel mainDock = new DockLayoutPanel(Unit.EM);
+		RootLayoutPanel.get().add(mainDock);
+
+		FlowPanel controls = new FlowPanel();
+		controls.setStyleName("controls");
+		mainDock.addNorth(controls, 2);
+
+		final MapWidget map = new MapWidget(opts);
+		mainDock.add(map);
 
 		LatLngBounds bounds = LatLngBounds.newInstance();
 		bounds.extend(LatLng.newInstance(37.660773,-122.534448));
 		bounds.extend(LatLng.newInstance(37.860773,-122.334448));
+		map.fitBounds(bounds);
 
-		RootLayoutPanel.get().add(map);
-		//RootPanel.get("basic").add(map);	// doesn't work for some reason
+		// Add the controls
+		final TextBox latLonBox = new TextBox();
+		latLonBox.setText("37,-122");
+		controls.add(latLonBox);
 
-		map.fitBounds(bounds);
+		controls.add(new Button("Reverse Geocode", new ClickHandler() {
+			@Override
+			public void onClick(ClickEvent event)
+			{
+				String latLonStr = latLonBox.getText();
+				String[] split = latLonStr.split(",");
+
+				float lat = Float.parseFloat(split[0]);
+				float lon = Float.parseFloat(split[1]);
+				final LatLng point = LatLng.newInstance(lat, lon);
+
+				map.getMapJSO().panTo(point);
+
+				GeocoderRequest request = GeocoderRequest.newInstance();
+				request.setLatLng(point);
+
+				GWT.log("Geocoding " + point, null);
+
+				Geocoder geocoder = Geocoder.newInstance();
+				geocoder.geocode(request, new GeocoderCallback() {
+					@Override
+					public void callback(GeocoderResponse[] responses, GeocoderStatus status)
+					{
+						GWT.log("Got callback with status " + status, null);
+
+						if (status.equals(GeocoderStatus.OK))
+						{
+							InfoWindow info = InfoWindow.newInstance();
+							info.setPosition(point);
+							if (responses.length > 0)
+							{
+								info.setContent(responses[0].toString());
+							}
+							else
+							{
+								info.setContent("No results from geocoder");
+							}
+
+							info.open(map.getMapJSO());
+						}
+						else
+						{
+							Window.alert("Geocoder failed: " + status);
+						}
+					}
+				});
+			}
+		}));
 	}
 }

war/basic.html

@@ -8,6 +8,12 @@
 		<title>Maps3 Demo</title>
 
 		<script type="text/javascript" language="javascript" src="demo/demo.nocache.js"></script>
+
+		<style type="text/css">
+			.controls {
+				text-align: center;
+			}
+		</style>
 	</head>
 
 	<body>