From 5225ce1cdaca3a402d1be9f2efe814da42503c8a Mon Sep 17 00:00:00 2001
From: Andy Gup <agup2001@msn.com>
Date: Tue, 10 Jun 2014 14:20:07 -0600
Subject: [PATCH] tweaked how getMinZoom and getMaxZoom are returned.

---
 lib/tiles/OfflineTilesEnablerLayer.js | 51 +++++++++++++++++----------
 1 file changed, 33 insertions(+), 18 deletions(-)

diff --git a/lib/tiles/OfflineTilesEnablerLayer.js b/lib/tiles/OfflineTilesEnablerLayer.js
index 2cdafa7..47415a4 100644
--- a/lib/tiles/OfflineTilesEnablerLayer.js
+++ b/lib/tiles/OfflineTilesEnablerLayer.js
@@ -19,8 +19,10 @@ define([
     return declare("OfflineTileEnablerLayer",[TiledMapServerLayer],{
 
         tileInfo: null,
-        _imageType:"",
-        _level:null, //current zoom level
+        _imageType: "",
+        _level: null, //current zoom level
+        _minZoom: null,
+        _maxZoom: null,
 
         /**
          * Utility method to get the basemap layer reference
@@ -202,29 +204,42 @@ define([
             },
 
             getMaxZoom: function(callback){
-                var lods = this.tileInfo.lods;
-                var length = this.tileInfo.lods.length;
-                var tempArr = [];
-                for(var i=0; i < length; i++){
-                    tempArr.push(lods[i].level);
-                    if(i == length -1){
-                        tempArr.sortNumber();
-                        callback(tempArr[i]);
+
+                if(this._maxZoom == null){
+                    var lods = this.tileInfo.lods;
+                    var length = this.tileInfo.lods.length;
+                    var tempArr = [];
+                    for(var i=0; i < length; i++){
+                        tempArr.push(lods[i].level);
+                        if(i == length -1){
+                            tempArr.sortNumber();
+                            callback(tempArr[i]);
+                        }
                     }
                 }
+                else{
+                    callback(this._maxZoom);
+                }
+
             },
 
             getMinZoom: function(callback){
-                var lods = this.tileInfo.lods;
-                var length = this.tileInfo.lods.length;
-                var tempArr = [];
-                for(var i=0; i < length; i++){
-                    tempArr.push(lods[i].level);
-                    if(i == length -1){
-                        tempArr.sortNumber();
-                        callback(tempArr[0]);
+
+                if(this._minZoom == null){
+                    var lods = this.tileInfo.lods;
+                    var length = this.tileInfo.lods.length;
+                    var tempArr = [];
+                    for(var i=0; i < length; i++){
+                        tempArr.push(lods[i].level);
+                        if(i == length -1){
+                            tempArr.sortNumber();
+                            callback(tempArr[0]);
+                        }
                     }
                 }
+                else{
+                    callback(this._minZoom);
+                }
             },
 
             /**