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Merge pull request #69 from jabadia/jabadia-devel

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jabadia - tile size nightmares
This commit is contained in:
Andy 2014-02-11 10:01:07 -07:00
commit 1161a603a4
4 changed files with 14 additions and 23 deletions
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14
lib/tiles/dbStore.js
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@ -190,12 +190,12 @@ define(["tiles/phoneGapConnector"],function(phonegap)
}
/**
* Provides a rough, approximate size of database in MBs.
* Provides the size of database in bytes
* @param callback callback(size, null) or callback(null, error)
*/
this.size = function(callback){
if(this._db != null){
var usage = { size: 0, tileCount: 0 };
var usage = { sizeBytes: 0, tileCount: 0 };
var transaction = this._db.transaction(["tilepath"])
.objectStore("tilepath")
@ -206,12 +206,11 @@ define(["tiles/phoneGapConnector"],function(phonegap)
if(cursor){
var storedObject = cursor.value;
var json = JSON.stringify(storedObject);
usage.size += this.stringBytes(json);
usage.sizeBytes += this.stringBytes(json);
usage.tileCount += 1;
cursor.continue();
}
else{
usage.size = Math.round(usage.size/1024/1024); /* JAMI: *2 */
else{
callback(usage,null);
}
}.bind(this);
@ -224,9 +223,8 @@ define(["tiles/phoneGapConnector"],function(phonegap)
}
}
this.stringBytes = function(str) {
var m = encodeURIComponent(str).match(/%[89ABab]/g);
return str.length + (m ? m.length : 0);
this.stringBytes = function(str) {
return str.length /**2*/ ;
}
this.init = function(callback)

18
lib/tiles/offlineEnabler.js
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@ -29,13 +29,7 @@ define([
{
console.log("extending layer", layer.url);
layer._tileUrlArr = [];
layer._tileSize = 0;
//Reset _tileUrlArr when extent is changed
layer._map.on("update-start",function(evt){
layer._tileUrlArr = [];
})
layer._lastTileUrl = "";
/* we add some methods to the layer object */
/* we don't want to extend the tiled layer class, as it is a capability that we want to add only to one instance */
@ -61,8 +55,7 @@ define([
if( this.offline.online )
{
console.log("fetching url online: ", url);
layer._tileUrlArr.push(url);
console.log("tile url " + layer._tileUrlArr.length)
layer._lastTileUrl = url;
return url;
}
@ -295,8 +288,8 @@ define([
*/
layer.estimateTileSize = function(callback)
{
if(layer._tileUrlArr.length > 0){
var url = this.offline.proxyPath + "?" + layer._tileUrlArr[0];
if(layer._lastTileUrl){
var url = this.offline.proxyPath + "?" + layer._lastTileUrl;
request.get(url,{
handleAs: "text/plain; charset=x-user-defined",
headers: {
@ -309,9 +302,8 @@ define([
});
}
else{
return NaN;
callback(NaN);
}
};
layer.doNextTile = function(i, cells, reportProgress)

4
samples/tiles/tiles-indexed-db.js
View File

@ -172,8 +172,8 @@ require(["esri/map",
basemapLayer.getOfflineUsage(function(usage)
{
console.log(usage);
console.log("Avg tile size:", Math.round(usage.size * 1024 / usage.tileCount * 100) / 100, "Kb");
var usageStr = usage.size + " Mb (" + usage.tileCount + " tiles)";
console.log("Avg tile size:", Math.round(usage.sizeBytes / 1024 / usage.tileCount * 100) / 100, "Kb");
var usageStr = Math.round(usage.sizeBytes/1024/1024*100)/100 + " Mb (" + usage.tileCount + " tiles)";
dojo.byId('offline-usage').innerHTML = usageStr;
});
}

1
test/spec/offlineEnablerSpec.js
View File

@ -115,6 +115,7 @@ describe("offline enabler library", function()
{
g_basemapLayer.deleteAllTiles(function(success)
{
expect(success).toEqual(true);
var extent = new Extent({"xmin":-822542.2830377579,"ymin":4580841.761960262,"xmax":94702.05638410954,"ymax":5131188.365613382,"spatialReference":{"wkid":102100}});
var callCount = 0;
var reportProgress = function(progress)