Alternative to Deltaspike Multi-Window Handling in Seam 3 Applikation - jsf-2

Question

I have problems with the Multi-Window Handling in my appliacation.
I currently using Conversation Scope to enable multi window / tab handling but in case the user opens a link (button) in a new tab the conversation is shared between the old and new tab.
Apache Deltaspike has a solution for that (http://deltaspike.apache.org/documentation/#_module_overview) but I already using Seam 3 (and JSF 2.1) and don't want to migrate to Deltaspike.
So I'm searching for an alternative solution without Deltaspike or is it possible to use Deltaspike AND Seam 3?

Answer 1

I build a solution with p:remoteCommand and this answer: In javascript, how can I uniquely identify one browser window from another which are under the same cookiedbased sessionId
I added this JS to my template which creates a unique id for each browswer tab an stores it in the window.name. Then it calls a p:remoteCommand to check the guid:
$(window).load(function() {
// ----------------------
var GUID = function() {
// ------------------
var S4 = function() {
return (Math.floor(Math.random() * 0x10000 /* 65536 */
).toString(16));
};
return (S4() + S4() + "-" + S4() + "-" + S4() + "-" + S4() + "-" + S4() + S4() + S4());
};
if (!window.name.match(/^GUID-/)) {
window.name = "GUID-" + GUID();
}
if ($('#guid_form\\:server_guid').text().length == 0 ||
$('#guid_form\\:server_guid').text() != window.name) {
checkGuid([{name:'guid', value:window.name}]);
}
})
Added a Primefaces remoteCommand to my template which is called by the script above.
<h:form id="guid_form">
<h:outputText value="#{checkTabAction.guid}" id="server_guid"/>
<p:remoteCommand name="checkGuid" actionListener="#{checkTabAction.checkGuid}" process="#this" partialSubmit="true" />
</h:form>
And added a check action which validateds the current browser tab / window by comparing the guid's:
#ConversationScoped
#Named(value = "checkTabAction")
public class CheckTabAction implements Serializable {
private static final long serialVersionUID = 1L;
#Inject
private Logger log;
private String guid = null;
public void checkGuid() {
Map<String, String> params = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
String guid = params.get("guid").toString();
if (this.guid == null) {
this.guid = guid;
}
if (!StringUtils.equals(this.guid, guid)) {
log.info("New tab detected!");
throw new NonexistentConversationException("New tab detected!");
}
}
public String getGuid() {
return guid;
}
}