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Pass the callback scope to getURLasync

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This commit is contained in:
fredj
2012-01-27 14:50:34 +01:00
parent fe202cef14
commit 40806dbe68
2 changed files with 5 additions and 4 deletions
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lib/OpenLayers/Layer/ArcIMS.js
+3 -2
View File
@@ -206,8 +206,9 @@ OpenLayers.Layer.ArcIMS = OpenLayers.Class(OpenLayers.Layer.Grid, {
* bounds - {<OpenLayers.Bounds>} A bounds representing the bbox for the * bounds - {<OpenLayers.Bounds>} A bounds representing the bbox for the
* request. * request.
* callback - {Function} Function to call when image url is retrieved. * callback - {Function} Function to call when image url is retrieved.
* scope - {Object} The scope of the callback method.
*/ */
getURLasync: function(bounds, callback) { getURLasync: function(bounds, callback, scope) {
bounds = this.adjustBounds(bounds); bounds = this.adjustBounds(bounds);
// create an arcxml request to generate the image // create an arcxml request to generate the image
@@ -236,7 +237,7 @@ OpenLayers.Layer.ArcIMS = OpenLayers.Class(OpenLayers.Layer.Grid, {
var axlResp = new OpenLayers.Format.ArcXML(); var axlResp = new OpenLayers.Format.ArcXML();
var arcxml = axlResp.read(doc); var arcxml = axlResp.read(doc);
callback(this.getUrlOrImage(arcxml.image.output)); callback.call(scope, this.getUrlOrImage(arcxml.image.output));
}, },
scope: this scope: this
}); });
lib/OpenLayers/Tile/Image.js
+2 -2
View File
@@ -170,12 +170,12 @@ OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
// Asynchronous image requests call the asynchronous getURL method // Asynchronous image requests call the asynchronous getURL method
// on the layer to fetch an image that covers 'this.bounds'. // on the layer to fetch an image that covers 'this.bounds'.
var id = this.asyncRequestId = (this.asyncRequestId || 0) + 1; var id = this.asyncRequestId = (this.asyncRequestId || 0) + 1;
this.layer.getURLasync(this.bounds, OpenLayers.Function.bind(function(url) { this.layer.getURLasync(this.bounds, function(url) {
if (id == this.asyncRequestId) { if (id == this.asyncRequestId) {
this.url = url; this.url = url;
this.initImage(); this.initImage();
} }
}, this)); }, this);
} else { } else {
// synchronous image requests get the url immediately. // synchronous image requests get the url immediately.
this.url = this.layer.getURL(this.bounds); this.url = this.layer.getURL(this.bounds);