Catching browser close event and showing my own popup

Question

Hi,
I want to show my own warning popup on browser close event. Kindly help me with the solution.
Thanks a lot in advance.
Lavanya.

Answer 1

Lavanya,
I don't think you could show a ADF Popup during the onload event. Instead, you could use javascript's confirm method to prompt the user to choose what they want to do and perform that operation accordingly.
Ex :
jspx code
   <af:document id="d1" onunload="performUnloadEvent" clientComponent="true">
            <af:resource type="javascript">
              // For Mozilla and Firefox
              if(window.addEventListener){
              window.addEventListener('beforeunload', function (event) {
                showConfirm();
              // For IE
              else if(window.attachEvent){
                   window.attachEvent('onbeforeunload', function (event) {
                showConfirm();
              function showConfirm(){
                      var eventSource = AdfPage.PAGE.findComponentByAbsoluteId('d1');
                      var sel = confirm("Are you sure you want to exit?");
                    if(sel==true){
                        alert('Perform OK Operation');
                        var x = AdfCustomEvent.queue(eventSource, "handleOnUnload", {result : 'ok'},false);
                        var y = 0;
                    else {
                    alert('Perform Cancel Operation');
                     var x = AdfCustomEvent.queue(eventSource, "handleOnUnload", {result : 'cancel'},false);
                     var y = 0;
            </af:resource>
            <af:serverListener type="handleOnUnload" method="#{UnloadHandler.onUnloadHandler}"/>
            <af:form id="f1" clientComponent="true">
            </af:form>
        </af:document>onUnloadHandler method in bean
    public void onUnloadHandler(ClientEvent clientEvent) {
        System.out.println("Unload Event fired..");
        String outcome = clientEvent.getParameters().get("result").toString();
        if(outcome.equalsIgnoreCase("ok")){
            System.out.println("Outcome is OK ");
            // Perform some operation like Commit;
        else if(outcome.equalsIgnoreCase("cancel")){
            System.out.println("Outcome is Cancel ");
            // Perform some cleanup operation like Rollback;
    }-Arun