Rich_Domain_Components_Loader

Rich_Domain_Components_Loader.js

Namespace.Register('DeepElement.ThreeOneFour.Helpers.ComponentLoader');

/*
     * Asynchronous Loader for Components
     */
DeepElement.ThreeOneFour.Helpers.ComponentLoader = new Class({
    instances: null,
    initialize: function(instances) {
        this.instances = instances;
    },

    unload: function(successCallback, failureCallback) {
        if (successCallback != null) {
            var workQueue = new Queue();
            for (var i = 0; i <= this.instances.length - 1; i++) {
                var instance = this.instances[i];
                if (instance != null) workQueue.enqueue(instance);
            }

            this.callInstance('unload', workQueue, successCallback, failureCallback);
        }
    },

    load: function(successCallback, failureCallback) {
        if (successCallback != null) {
            var workQueue = new Queue();
            for (var i = 0; i <= this.instances.length - 1; i++) {
                var instance = this.instances[i];
                if (instance != null) workQueue.enqueue(instance);
            }

            this.callInstance('load', workQueue, successCallback, failureCallback);
        }
    },

    callInstance: function(functionName, workQueue, successCallback, failureCallback) {
        if (!workQueue.isEmpty() && successCallback != null) {
            var instance = workQueue.dequeue();
            var self = this;

            instance[functionName](function() {
                self.callInstance(functionName, workQueue, successCallback, failureCallback);
            }, function() {
                if (failureCallback != null) failureCallback();
            });
        } else {
            successCallback();
        }
    },
    getInstances: function() {
        return this.instances;
    }
});​