I use this (for similar functionality), which is better because it is
conversation scoped (app works in several windows):
On every page I can get "back" to, I store it in a conversation scoped
component with a page action in pages.xml:
| <page view-id="/docDisplay.xhtml" action="#{documentBrowser.prepare()}">
|
| @Name("documentBrowser")
| public class DocumentBrowser {
|
| @In
| protected org.jboss.seam.core.Redirect redirect;
|
| public String prepare() {
|
| // Store the view-id that called this method (as a page
action) for return (exit of a later conversation)
| redirect.captureCurrentRequest();
| }
|
| /**
| * Executes a redirect to the last view-id that was prepare()ed.
| * <p>
| * Usually called after ending a conversation. Assumes that the caller
of the method does not want to propagate
| * the current (ended) conversation across that redirect. Also removes
any stored <tt>actionOutcome</tt>,
| * <tt>actionMethod</tt> or <tt>cid</tt> request parameter before
redirecting, we don't want to redirect to
| * a prepare()ed page that was in a long-running conversation
(temporary doesn't matter) or that was last
| * called with an action (that action would probably send us straight
back into the conversation we are trying
| * to redirect out of).
| */
| public void redirectToLastBrowsedPage() {
|
| // We don't want to redirect to an action, so if the last browsed
page was called with an action, remove it
| redirect.getParameters().remove("actionOutcome");
| redirect.getParameters().remove("actionMethod");
|
| // If the last browsed page had a conversation identifier (we
assume of a temporary conversation), remove it
| redirect.getParameters().remove("cid");
|
| // We also don't want to redirect the long-running conversation,
the caller has ended it already
| redirect.setConversationPropagationEnabled(false);
|
| redirect.execute();
| }
|
| }
|
And I can then later exit a conversation like this and redirect to the last
"prepared" page:
| <s:button id="exit" value="Exit Editor" styleClass="button"
action="#{documentBrowser.redirectToLastBrowsedPage()}"
| propagation="end"/>
|
|
There is some more details to this overall navigation strategy, but that should
get you started.
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