Current File : //home1/dimen328/.trash/espace/verification/index/messaging.js.tВlВchargement
/**
* Module for sending/receiving messages from/to other applications.
*/
/*global define*/
define(['pagebus'], function (PageBus) {
'use strict';
var messaging = {};
/**
* Registers a callback to be called when receiving messages on the given topic
* @param {String} topic The name of the queue
* @param {function} callback The callback function receiving messages. The callback takes a message object as parameter.
*/
messaging.subscribeTopic = function (topic, callback) {
if(window.top.PageBus){
window.top.PageBus.subscribe(topic, this, function (subj, msg) {
callback(msg);
});
}else{
window.PageBus.subscribe(topic, this, function (subj, msg) {
callback(msg);
});
}
};
/**
* Publishes the given message on the given topic. Every callback registered to this topic will be notified.
* You should not assume that every subscribers has consumed the message when this method returns.
* @param {String} topic The topic to publish on
* @param {Object} message The message to send.
*/
messaging.publishTopic = function (topic, message) {
if(window.top.PageBus){
window.top.PageBus.publish(topic, message);
}else{
window.PageBus.publish(topic, message);
}
};
/**
* Query a given topic. Return an array containing the topic messages
* @param {String} topic The topic to query on
* @return {Array} topic messages.
*/
messaging.queryTopic = function (topic) {
if(window.top.PageBus){
var pageBusObjects = window.top.PageBus.query(topic);
}else{
var pageBusObjects = window.PageBus.query(topic);
}
var messages = [];
for (var i = 0; i < pageBusObjects.length; i++) {
messages.push(pageBusObjects[i].value);
}
return messages;
};
/**
* Store a data into a given topic.
* @param {String} topic The topic to store in
* @return {Object} data to be stored.
*/
messaging.storeTopic = function (topic, data) {
//Before using store, the topic needs to be cached. Otherwise an exception will be thrown by PageBus
if(window.top.PageBus){
window.top.PageBus.subscribe(topic, function (topic, message, data) { return; }, null, {
PageBus: {
cache: true
}
});
window.top.PageBus.store(topic, data);
}else{
window.PageBus.subscribe(topic, function (topic, message, data) { return; }, null, {
PageBus: {
cache: true
}
});
window.PageBus.store(topic, data);
}
};
Object.freeze(messaging);
return messaging;
});
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