erp5_web_jabber_client: begin of support xep-0184

Implementation of Delivery Receipt sending. Delivery Receipt hadnling is
not implemented yet.
http://xmpp.org/extensions/xep-0184.html

clients which support xep-0184
adnroid: https://conversations.im/ https://www.xabber.com/
linux: http://psi-plus.com/

bt5/erp5_web_jabber_client/PathTemplateItem/web_page_module/jabber_gadget_jabberconnection_js.js

@@ -22,6 +22,7 @@
       );
     }
   };
+  Strophe.addNamespace('RECEIPTS', 'urn:xmpp:receipts');
 
   var gadget_klass = rJS(window);
 
@@ -67,9 +68,12 @@
     enqueueDefer(gadget, function () {
 
       var to = Strophe.getBareJidFromJid(message.getAttribute('to')),
-        from = Strophe.getBareJidFromJid(message.getAttribute('from')),
+        from = message.getAttribute('from'),
+        id = message.getAttribute('id'),
         type = message.getAttribute('type'),
-        body = message.querySelector('body');
+        body = message.querySelector('body'),
+        req = message.getElementsByTagName('request'),
+        connection = gadget.props.connection;
 
       if (type !== "chat") {
         throw new Error("Unsupported message type: " + type);
@@ -78,8 +82,18 @@
         throw new Error("Expected message to: " + to);
       }
       if (body !== null) {
-        return gadget.notifyXMPPMessageTextReceived(from, to,
-                                                    body.textContent);
+        if (connection !== undefined && id !== null && req.length > 0) {
+          // xep-0184 send delivery receipt
+          connection.send(
+            $msg({from: connection.jid, to: from})
+              .c("received", {xmlns: Strophe.NS.RECEIPTS, id: id})
+          );
+        }
+        return gadget.notifyXMPPMessageTextReceived(
+          Strophe.getBareJidFromJid(from),
+          to,
+          body.textContent
+        );
       }
     });
     return true;
@@ -356,9 +370,10 @@
     })
 
     .declareMethod('sendMessage', function (jid, text) {
-      this.props.connection.send(
-        $msg({to: jid, type: "chat"}).c('body').t(text)
-      );
+      var connection = this.props.connection;
+      connection.send($msg({id: connection.getUniqueId(), to: jid, type: "chat"})
+              .c('body').t(text).up()
+              .c('request', {'xmlns': Strophe.NS.RECEIPTS}));
     });
 
 }(window, rJS, Strophe, $iq, $pres, $msg, RSVP));
\ No newline at end of file

bt5/erp5_web_jabber_client/PathTemplateItem/web_page_module/jabber_gadget_jabberconnection_js.xml

@@ -230,7 +230,7 @@
             </item>
             <item>
                 <key> <string>serial</string> </key>
-                <value> <string>949.35404.19073.41659</string> </value>
+                <value> <string>949.56116.24375.61559</string> </value>
             </item>
             <item>
                 <key> <string>state</string> </key>
@@ -248,7 +248,7 @@
                     </tuple>
                     <state>
                       <tuple>
-                        <float>1456844917.63</float>
+                        <float>1458087635.15</float>
                         <string>UTC</string>
                       </tuple>
                     </state>