commandlink primefaces with href - primefaces

Question

i'm trying to open a popup mailto by using two different codes:
(1)- <p:link href="mailto:#{classManagedBean.sendEmails}" />
(2)- <p:commandlink actionListener="#{candidatManagedBean.sendEmails()}" />
the "senEmails" is a method declared in the classManagedBean in order to get all the selected emails when a submit of the form done.
The issus that i encountred that when:
working with the code (1) the selected mails came to the managedBean with null values and a popup of the mail interface open with empty mails (as destination)
with the code (2) the selected mails came with the correct values but the popup didn't appear (beacause there is no href attribut!! in the commandLink)
My question is how can i use a
<p:link> with a submit form
<p:commandLink> with href attribut
The Xhtml:
<h:form id="form">
<p:link href="#{candidatManagedBean.createmaito()}">
<p:graphicImage width="25" value="ecrire.png" height="25" alt="envoyer"/>
</p:link>
</h:form>
<p:dataTable id="listCandidat"
value="#{candidatManagedBean.listCandidat}"
emptyMessage="0 candidat trouvé"
var="item"
paginator="true" rows="15" paginatorPosition="bottom"
rowKey="#{item.idCandidat}"
paginatorTemplate="{FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink}"
lazy="true"
selection="#{candidatManagedBean.selectedCandidates}"
>
<p:ajax event="rowSelect" listener="#{candidatManagedBean.onRowSelect}" />
<p:column exportable="false" selectionMode="multiple" style="width:16px;text-align:center"/>
{<p:column>...</p:column>}
</p:dataTable>
The managedBean:
public String createmaito() { // private List<Candidat> selectedCandidates;
System.out.println(selectedCandidates);//here i got a null value of selectedCandidates
if (selectedCandidates != null && !selectedCandidates.isEmpty()) {
for (Candidat cand : selectedCandidates) {
lsEmail = lsEmail.concat(cand.getEmail1());
lsEmail = lsEmail.concat(",");
}
lsEmail= lsEmail.substring(0, lsEmail.length()-1);
result = lsEmail;
}
else {
result = "";
}
return result;
}

Answer 1

I got the solution as follows:
-In XHTML:
<p:commandLink actionListener="#{ManagedBean.getListeOfEmailContacts()}">
<p:graphicImage value="/mail.png" />
</p:commandLink>
-In managed bean:
public void getListeOfEmailContacts() {
/* instruction to get the ListOfContacts ...*/
RequestContext.getCurrentInstance().execute("window.open(href ='mailto:" + ListOfContacts + "')");
}