/*==============================
	Google Maps
================================*/
var map = null;
var geocoder = null;
var Xmarker = null;
var txtLocation = null;

// Reads the array of elements to DisplayMap (DisplayMapElements)
function DisplayAllMaps() {
	
	// Only go if the array exists
	if (typeof(DisplayMapElements) != 'undefined') {
		for (entry in DisplayMapElements) {
			DisplayMap(DisplayMapElements[entry].DivId, DisplayMapElements[entry].PanControls, DisplayMapElements[entry].MapType, DisplayMapElements[entry].MapLat, DisplayMapElements[entry].MapLong, DisplayMapElements[entry].MapZoom, DisplayMapElements[entry].InitialDisplay)
		}
	}
}

// Displays a Google Map
function DisplayMap(DivID, PanControls, MapType, MapLat, MapLong, MapZoom, InitialDisplay) {
  if (GBrowserIsCompatible()) {
  
		// Look for the Map 
		var map = new GMap2(document.getElementById(DivID));
		
		// Add Pan Controls
		if (PanControls == 1) {  map.addControl(new GSmallMapControl()); }
		else if (PanControls == 2) {  map.addControl(new GLargeMapControl()); }
		else if (PanControls == 3) {  map.addControl(new GSmallZoomControl()); }
		
		// Add MapType Controls
		if (MapType == 1) { map.addControl(new GMapTypeControl()); }
		
		// Set the Map
		if (InitialDisplay == 1) {	map.setCenter(new GLatLng(MapLat, MapLong), MapZoom, G_NORMAL_MAP) }
		else if (InitialDisplay == 2) {	map.setCenter(new GLatLng(MapLat, MapLong), MapZoom, G_SATELLITE_MAP) }
		else if (InitialDisplay == 3) {	map.setCenter(new GLatLng(MapLat, MapLong), MapZoom, G_HYBRID_MAP) }
		
		// Add Markers
		if (typeof(MapMarkerElements) != 'undefined') {
			for (entry in MapMarkerElements) {
				if (MapMarkerElements[entry].DivId == DivID) {
					map.addOverlay(createMarker(new GLatLng(MapMarkerElements[entry].MarkerLat, MapMarkerElements[entry].MarkerLong), MapMarkerElements[entry].MarkerInfo));
				}
			}
		}
		
  }	
}

// Creates a Marker
function createMarker(point, info) {
	var marker = new GMarker(point);
	GEvent.addListener(marker, "click", function() {
		marker.openInfoWindowHtml(info);
	});
	return marker;
}

// Displays a Google Map with a search input box using Google AJAX
var app;

function MapCentreDisplay(lat, lng, zoom, txtLoc, txtZoom, iControl, InitialDisplay) {
	if (GBrowserIsCompatible()) {
		app = new App(lat, lng, zoom, txtLoc, txtZoom, iControl, InitialDisplay);
	}
}

function App(lat, lng, zoom, txtLoc, txtZoom, iControl, InitialDisplay) {

	this.myMap = null;
	this.markerList = new Array();
	txtLocation = txtLoc;

	// create a map
	if (txtZoom != '') {
		this.myMap = new GMap2(document.getElementById("mapCenter"));
	}
	else {
		this.myMap = new GMap2(document.getElementById("mapMarker"));
	}
	this.myMap.addControl(new GLargeMapControl());
	this.myMap.addControl(new GMapTypeControl());
	map = this.myMap
	
	if (InitialDisplay == 1) {	this.myMap.setCenter(new GLatLng(lat, lng), zoom, G_NORMAL_MAP) }
	else if (InitialDisplay == 2) {	this.myMap.setCenter(new GLatLng(lat, lng), zoom, G_SATELLITE_MAP) }
	else if (InitialDisplay == 3) {	this.myMap.setCenter(new GLatLng(lat, lng), zoom, G_HYBRID_MAP) }
	
	if (txtZoom != '') {
		GEvent.addListener(map, "moveend", function() {
				var ncenter = map.getCenter();
				var nzoom = map.getZoom();
				document.getElementById(txtLoc).value = ncenter.toString();
				document.getElementById(txtZoom).value = nzoom.toString();
		});
	}
	else {
		Xmarker = new GMarker(new GLatLng(lat, lng),{draggable: true});
    GEvent.addListener(Xmarker, "dragend", function() {
      var point = Xmarker.getPoint();
      document.getElementById(txtLoc).value = point.toString();
    });
    map.addOverlay(Xmarker);
    document.getElementById(txtLoc).value = Xmarker.getPoint().toString();
	}

	if (InitialDisplay == 1) {	this.myMap.setCenter(new GLatLng(lat, lng), zoom, G_NORMAL_MAP) }
	else if (InitialDisplay == 2) {	this.myMap.setCenter(new GLatLng(lat, lng), zoom, G_SATELLITE_MAP) }
	else if (InitialDisplay == 3) {	this.myMap.setCenter(new GLatLng(lat, lng), zoom, G_HYBRID_MAP) }

	// Add in a full set of searchers
	var localSearch = new GlocalSearch();
	var options = new GsearcherOptions();
	options.setExpandMode(GSearchControl.EXPAND_MODE_OPEN);
	searchControl.addSearcher(localSearch, options);

	// Set the Local Search center point
	localSearch.setCenterPoint(this.myMap);

	// tell the searcher to draw itself and tell it where to attach
	searchControl.draw(document.getElementById("searchcontrol" + iControl));

	// tell the search control to call be on start/stop
	searchControl.setSearchCompleteCallback(this, App.prototype.OnSearchComplete);

}

App.prototype.OnSearchComplete = function(sc, searcher) {

	var mCenter = 1;
	var resDiv = document.getElementById("searchcontrol1Results")
	if (resDiv == null) {
		mCenter = 2;
		resDiv = document.getElementById("searchcontrol2Results")
	}
	if (resDiv != null) { resDiv.innerHTML = ''; }

	// if we have local search results, put them on the map
	if (searcher.results && searcher.results.length > 0) {
		for (var i = 0; i < searcher.results.length; i++) {
			var result = searcher.results[i];

			// if this is a local search result, then proceed...
			if (result.GsearchResultClass == GlocalSearch.RESULT_CLASS) {

				var markerObject = new Object();
				markerObject.result = result;
				markerObject.latLng = new GLatLng(parseFloat(result.lat), parseFloat(result.lng));

				// create item to be added to the list
				resDiv.innerHTML = resDiv.innerHTML + '<div class="ResultItems">' + markerObject.result.title + '  <div class="ResultItemClick" OnClick="GotoMap(' + parseFloat(result.lat) + ',' + parseFloat(result.lng) + ',' + mCenter + ');">view on map</div></div>'

				if (searcher.results.length > 1) {
					resDiv.style.display = 'block';
					map = this.myMap;
				}
				else {
					resDiv.style.display = 'none';
					if (Xmarker) this.myMap.removeOverlay(Xmarker);
					Xmarker = new GMarker(markerObject.latLng, { draggable: true });
					GEvent.addListener(Xmarker, "dragend", function() {
						var point = Xmarker.getPoint();
						document.getElementById(txtLocation).value = point.toString();
					});
					this.myMap.addOverlay(Xmarker);
					document.getElementById(txtLocation).value = Xmarker.getPoint().toString();
					this.myMap.setCenter(markerObject.latLng);
				}

			}
		}
	}
	else {
		resDiv.innerHTML = '<div class="NormalRed">No matching addresses found.</div>';
		resDiv.style.display = 'block';
	}
}

// function called when an item in the results list is clicked
function GotoMap(mLat, mLng, mC) {
	map.removeOverlay(Xmarker)
	if (mC == 1) {
		Xmarker = new GMarker(new GLatLng(mLat, mLng),{draggable: false});
	}
	else {
		Xmarker = new GMarker(new GLatLng(mLat, mLng),{draggable: true});
			GEvent.addListener(Xmarker, "dragend", function() {
			var point = Xmarker.getPoint();
			document.getElementById(txtLocation).value = point.toString();
		});
	}
	map.addOverlay(Xmarker);
	document.getElementById(txtLocation).value = Xmarker.getPoint().toString();
  map.setCenter(new GLatLng(mLat, mLng));	
}

function method_closure(object, method, opt_argArray) {
	return function() {
		return method.apply(object, opt_argArray);
	}
}

// function called when the "Go!" button is clicked
function showAddress(thisMap){ 
	var address = document.getElementById(thisMap).value;
	searchControl.execute(address);
}