app/jquery/jquery-ajaxQueue.js
author Mario Ferraro <fadinlight@gmail.com>
Sun, 15 Nov 2009 22:12:20 +0100
changeset 3093 d1be59b6b627
parent 1235 41cb87ed9b81
permissions -rw-r--r--
GMaps related JS changed to use new google namespace. Google is going to change permanently in the future the way to load its services, so better stay safe. Also this commit shows uses of the new melange.js module. Fixes Issue 634.

/**
 * Ajax Queue Plugin
 *
 * Homepage: http://jquery.com/plugins/project/ajaxqueue
 * Documentation: http://docs.jquery.com/AjaxQueue
 */

/**

<script>
$(function(){
	jQuery.ajaxQueue({
		url: "test.php",
		success: function(html){ jQuery("ul").append(html); }
	});
	jQuery.ajaxQueue({
		url: "test.php",
		success: function(html){ jQuery("ul").append(html); }
	});
	jQuery.ajaxSync({
		url: "test.php",
		success: function(html){ jQuery("ul").append("<b>"+html+"</b>"); }
	});
	jQuery.ajaxSync({
		url: "test.php",
		success: function(html){ jQuery("ul").append("<b>"+html+"</b>"); }
	});
});
</script>
<ul style="position: absolute; top: 5px; right: 5px;"></ul>

 */
/*
 * Queued Ajax requests.
 * A new Ajax request won't be started until the previous queued
 * request has finished.
 */

/*
 * Synced Ajax requests.
 * The Ajax request will happen as soon as you call this method, but
 * the callbacks (success/error/complete) won't fire until all previous
 * synced requests have been completed.
 */


(function($) {

	var ajax = $.ajax;

	var pendingRequests = {};

	var synced = [];
	var syncedData = [];

	$.ajax = function(settings) {
		// create settings for compatibility with ajaxSetup
		settings = jQuery.extend(settings, jQuery.extend({}, jQuery.ajaxSettings, settings));

		var port = settings.port;

		switch(settings.mode) {
		case "abort":
			if ( pendingRequests[port] ) {
				pendingRequests[port].abort();
			}
			return pendingRequests[port] = ajax.apply(this, arguments);
		case "queue":
			var _old = settings.complete;
			settings.complete = function(){
				if ( _old )
					_old.apply( this, arguments );
				jQuery([ajax]).dequeue("ajax" + port );;
			};

			jQuery([ ajax ]).queue("ajax" + port, function(){
				ajax( settings );
			});
			return;
		case "sync":
			var pos = synced.length;

			synced[ pos ] = {
				error: settings.error,
				success: settings.success,
				complete: settings.complete,
				done: false
			};

			syncedData[ pos ] = {
				error: [],
				success: [],
				complete: []
			};

			settings.error = function(){ syncedData[ pos ].error = arguments; };
			settings.success = function(){ syncedData[ pos ].success = arguments; };
			settings.complete = function(){
				syncedData[ pos ].complete = arguments;
				synced[ pos ].done = true;

				if ( pos == 0 || !synced[ pos-1 ] )
					for ( var i = pos; i < synced.length && synced[i].done; i++ ) {
						if ( synced[i].error ) synced[i].error.apply( jQuery, syncedData[i].error );
						if ( synced[i].success ) synced[i].success.apply( jQuery, syncedData[i].success );
						if ( synced[i].complete ) synced[i].complete.apply( jQuery, syncedData[i].complete );

						synced[i] = null;
						syncedData[i] = null;
					}
			};
		}
		return ajax.apply(this, arguments);
	};

})(jQuery);