add changelayer event to mergeNewParams function, r=bartvde (closes #2179)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@9618 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
2009-08-13 06:31:47 +00:00
parent 2b9bd25530
commit d83376de64
3 changed files with 29 additions and 9 deletions
--- a/lib/OpenLayers/Layer/HTTPRequest.js
+++ b/lib/OpenLayers/Layer/HTTPRequest.js
@@ -121,7 +121,14 @@ OpenLayers.Layer.HTTPRequest = OpenLayers.Class(OpenLayers.Layer, {
     */
    mergeNewParams:function(newParams) {
        this.params = OpenLayers.Util.extend(this.params, newParams);
-        return this.redraw();
+        var ret = this.redraw();
+        if(this.map != null) {
+            this.map.events.triggerEvent("changelayer", {
+                layer: this,
+                property: "params"
+            });
+        }
+        return ret;
    },

    /**