From 629e62b82beb653109b4337bedaa97c288aedcde Mon Sep 17 00:00:00 2001
From: euzuro <euzuro@metacarta.com>
Date: Sun, 16 Jul 2006 16:41:54 +0000
Subject: [PATCH] protect google base layer functions from an uncentered gmaps
 object

git-svn-id: http://svn.openlayers.org/trunk/openlayers@949 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
---
 lib/OpenLayers/Layer/Google.js | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/OpenLayers/Layer/Google.js b/lib/OpenLayers/Layer/Google.js
index cda46fb83a..f2e2d33c55 100644
--- a/lib/OpenLayers/Layer/Google.js
+++ b/lib/OpenLayers/Layer/Google.js
@@ -262,12 +262,12 @@ OpenLayers.Layer.Google.prototype = Object.extend( new OpenLayers.Layer(), {
      *
      * @returns An OpenLayers.LonLat which is the passed-in view port
      *          OpenLayers.Pixel, translated into lon/lat by GMAPS
-     *          If gmap is not loaded, returns null.
+     *          If gmap is not loaded or not centered, returns null
      * @type OpenLayers.LonLat
      */
     getLonLatFromViewPortPx: function (viewPortPx) {
         var lonlat = null;
-        if (this.gmap != null) {
+        if ((this.gmap != null) && (this.gmap.getCenter() != null)) {
             var gPoint = this.getGPointFromOLPixel(viewPortPx);
             var gLatLng = this.gmap.fromContainerPixelToLatLng(gPoint)
             lonlat = this.getOLLonLatFromGLatLng(gLatLng);
@@ -281,12 +281,12 @@ OpenLayers.Layer.Google.prototype = Object.extend( new OpenLayers.Layer(), {
      *
      * @returns An OpenLayers.Pixel which is the passed-in OpenLayers.LonLat, 
      *          translated into view port pixels BY GMAPS
-     *          If gmap is not loaded, returns null.
+     *          If gmap is not loaded or not centered, returns null
      * @type OpenLayers.Pixel
      */
     getViewPortPxFromLonLat: function (lonlat) {
         var viewPortPx = null;
-        if (this.gmap != null) {
+        if ((this.gmap != null) && (this.gmap.getCenter() != null)) {
             var gLatLng = this.getGLatLngFromOLLonLat(lonlat);
         
             // note we use special hacked function here
@@ -302,12 +302,12 @@ OpenLayers.Layer.Google.prototype = Object.extend( new OpenLayers.Layer(), {
      * @param {OpenLayers.Bounds} bounds
      *
      * @returns Corresponding zoom level for a specified Bounds. 
-     *          If gmap is not loaded, returns null.
+     *          If gmap is not loaded or not centered, returns null
      * @type int
      */
     getZoomForExtent: function (bounds) {
         var zoom = null;
-        if (this.gmap != null) {
+        if ((this.gmap != null) && (this.gmap.getCenter() != null)) {
             var gBounds = this.getGLatLngBoundsFromOLBounds(bounds);
             var gZoom = this.gmap.getBoundsZoomLevel(gBounds);
             zoom = this.getOLZoomFromGZoom(gZoom);