TinyPubSub.js Library

TinyPubSub.js

var EventBus = function () {
    this.NewsPaperList = {};
    this.OrderList = [];
};

EventBus.prototype = {

    subscribe: function (newsPaper, address) {
        if ((typeof newsPaper !== "string") || (typeof address !== "function")) {
            return -1;
        }
        var AList = this.NewsPaperList[newsPaper];
        if (typeof AList !== "object") {
            AList = this.NewsPaperList[newsPaper] = [];
        }
        
        var customer = AList.push(address) - 1 ;

        return this.OrderList.push({
            newsPaper: newsPaper,
            customer: customer
        }) - 1;
    },
    unsubscribe: function (orderId) {
        var O = this.OrderList[orderId];
        if (O !== undefined) {
            delete this.NewsPaperList[O.newsPaper][O.customer];
            delete O;
        }
    },
    publish: function (newsPaper, content) {
        var AddressList = this.NewsPaperList[newsPaper];
        if (typeof AddressList !== "undefined") {
            var l = AddressList.length;
            for (var i = 0; i < l; i++) {
                if (typeof AddressList[i] === "function") {
                    AddressList[i].call(this, content);
                }
            }
        }
    }
};

//// -----------------------  Use Of TinyPubSub.js  -------------------/////


var E = new EventBus();

var x = E.subscribe("resize", function (val) {
    log("Method1 :resize : called with value" + val);
});



E.publish("resize", "1");

E.unsubscribe(x);