imageloaderror

imageloaderror

    OpenLayers.Util.onImageLoadError = function(){

        // this.src provides the wms request
        var errorStr = this.src.substring(0, (this.src.indexOf("?") + 1));
        var childStr = "";

        var foundBadWMS = false;
        var root = tree.getRootNode();
        var children = root.childNodes;

        if (!(foundBadWMS)) {
            // src may be returning with a different sub-domain but the same parent domain/hostname
            errorStr = getHostname(this.src);
            var count = errorStr.split(".");
            if (count.length > 2) {
                // www.xxx.com counts the same as yyy.xxx.com
                var parentDomain = errorStr.substring((errorStr.indexOf(".") + 1), errorStr.length);
                for (var j = 0; j < children.length; j++) {
                    parentDomainOfNode = getHostname(children[j].text);
                    parentDomainOfNode = parentDomainOfNode.substring((parentDomainOfNode.indexOf(".") + 1), parentDomainOfNode.length);
                    if (parentDomain == parentDomainOfNode) {
                        Ext.MessageBox.alert('Error', ("The WMS source: " + children[j].text + " has failed to load - please switch it off or try a different projection."));
                        // children[j].cascade(function(m){
                            // var ui2 = m.getUI();
                            // ui2.toggleCheck(false);
                        // });
                        foundBadWMS = true;
                    }
                }
            }
        }
    }