[Users] Popup

[Alex Zeit]

Dear All,
I am trying to create Popup with HTML content that is generated by servlet
and transferred with XMLHttpRequest.
Unfortunately the Popup is returned empty. Do I need special synchronisation
for Popup to wait until request transfer  HTML completely? (see
http://hboard.iwk.uni-karlsruhe.de:8080/QuickStartWicket/qswicket/?wicket:bookmarkablePage=:wicketqs.RegioNoGM
)
The popup is also looks different from one in example at
http://dev.geoext.org/trunk/geoext/examples/popup.html


select = new OpenLayers.Layer.Vector("Selection", {styleMap:
    new OpenLayers.Style(OpenLayers.Feature.Vector.style["select"])
});

control = new OpenLayers.Control.GetFeature({
      protocol: new OpenLayers.Protocol.WFS.v1_1_0({...}),
});

control.events.register("featureselected", this, function(e) {
select.addFeatures([e.feature]);
var txt = doRequest('
http://hboard.iwk.uni-karlsruhe.de:8080/QuickStartWicket-1.0-SNAPSHOT/qswicket/?wicket:bookmarkablePage=:wicketqs.Page1&username='+
"test");
createPopup(e.feature, txt);
                    });

map.addControl(control);
control.activate();

function createPopup(feature, htmlText) {
    popup = new GeoExt.Popup({
        title: 'My Popup',
        feature: feature,
        width:200,
        html: htmlText,
        maximizable: false,
        collapsible: true
    });
    popup.show();
}

function doRequest(servletName){
    var request = addrequest(servletName);                          //calls
the addrequest function
    request.onreadystatechange = function(){  //this is used to listen for
changes in the request's status
        if (request.readyState == 4) {
            if (request.status == 200) {
                var htmlTxt = request.responseText;
                return htmlTxt;
            }
        }
    }
}

function addrequest(req) {
    var request;
    try {                                     //create a request for
netscape, mozilla, opera, etc.
    request = new XMLHttpRequest();
    }catch (e) {

    try {                                 //create a request for internet
explorer
        request = new ActiveXObject("Microsoft.XMLHTTP");
    }catch (e) {                           //do some error-handling
        alert("XMLHttpRequest error: " + e);
    }
    }

    request.open("GET", req, true);       //prepare the request
    request.send(null);                       //send it
    return request;                           //return the request
}


Any help would be highly appreciated
Alex
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.geoext.org/pipermail/users/attachments/20100603/50292b49/attachment.htm