/lenasys/trunk : contents of js/httpAjax.js at revision 137

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/*--------------------------------------------------------------------------------
AJAX Queue
----------------------------------------------------------------------------------*/		

var ajaxQueue = new Array;
var ajaxServiceRunning = false;

var httpAjax = false;

/*--------------------------------------------------------------------------------
AjaxService

This is the only interface to the AJAX wrapper. This makes the ajax service 
browser agnostic and provides a single interface for all of the services.

Each service uses a different url and a different parameter layout.
				
----------------------------------------------------------------------------------*/
function AjaxService(servicename, serviceparam) {

	ajaxQueue.push(servicename);
	ajaxQueue.push(serviceparam);

	if(!ajaxServiceRunning) {
		ajaxServiceRunning = true;
		var aParam = ajaxQueue.pop();
		var aService = ajaxQueue.pop();
		ajaxServiceExec(aService, aParam);
	}				
}

/*--------------------------------------------------------------------------------
AjaxService

This is the only interface to the AJAX wrapper. This makes the ajax service 
browser agnostic and provides a single interface for all of the services.

Each service uses a different url and a different parameter layout.
				
----------------------------------------------------------------------------------*/
function ajaxServiceExec(servicename, serviceparam) {

	// Parameters are set, initiate AJAX engine
	if (window.XMLHttpRequest) {
		httpAjax = new XMLHttpRequest();
		if (httpAjax.overrideMimeType) {
			httpAjax.overrideMimeType('text/xml');
		}
	} else if(window.ActiveXObject) {
		try {
			httpAjax = new ActiveXObject("Msxml2.XMLHTTP");
		} catch(e) {
			try {
				httpAjax = new ActiveXObject("Microsoft.XMLHTTP");
			} catch(e) {
				alert("CouldnŽt build an AJAX instance.");
				return false;
			}
		}
	}

	// Send request to Server and initiate callback.
	try {
		httpAjax.onreadystatechange = getPage;
		httpAjax.open('POST', servicename, true);
		httpAjax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;");
		httpAjax.send(serviceparam);		
	} catch(e) {
		//alert("onreadystatechange didnŽt go well!");
		return false;
	}

	return true;

}

/*--------------------------------------------------------------------------------
getPage

This is the AJAX callback function. It detects the invoking service and handles
the reply from each service accordingly.				
		
----------------------------------------------------------------------------------*/
function getPage() {

	if(httpAjax.readyState == 4) { 

		str = httpAjax.responseText;

		if(ajaxQueue.length>0) {
			var Aparam = ajaxQueue.pop();
			var Aservice = ajaxQueue.pop();
			ajaxServiceExec(Aservice, Aparam);
		} else {
			ajaxServiceRunning=false;				
		}

		return true;				
	} else {
	// If any other ready state than prepared, do nothing!
	}
}



1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	1	/*--------------------------------------------------------------------------------
4.8.1 by galaxyAbstractor Cleaned up shitty code	2	AJAX Queue
	3	----------------------------------------------------------------------------------*/
	4
	5	var ajaxQueue = new Array;
	6	var ajaxServiceRunning = false;
	7
	8	var httpAjax = false;
	9
	10	/*--------------------------------------------------------------------------------
	11	AjaxService
	12
	13	This is the only interface to the AJAX wrapper. This makes the ajax service
	14	browser agnostic and provides a single interface for all of the services.
	15
	16	Each service uses a different url and a different parameter layout.
	17
	18	----------------------------------------------------------------------------------*/
	19	function AjaxService(servicename, serviceparam) {
	20
	21	ajaxQueue.push(servicename);
	22	ajaxQueue.push(serviceparam);
	23
	24	if(!ajaxServiceRunning) {
	25	ajaxServiceRunning = true;
	26	var aParam = ajaxQueue.pop();
	27	var aService = ajaxQueue.pop();
	28	ajaxServiceExec(aService, aParam);
	29	}
	30	}
	31
	32	/*--------------------------------------------------------------------------------
	33	AjaxService
	34
	35	This is the only interface to the AJAX wrapper. This makes the ajax service
	36	browser agnostic and provides a single interface for all of the services.
	37
	38	Each service uses a different url and a different parameter layout.
	39
	40	----------------------------------------------------------------------------------*/
	41	function ajaxServiceExec(servicename, serviceparam) {
	42
	43	// Parameters are set, initiate AJAX engine
	44	if (window.XMLHttpRequest) {
	45	httpAjax = new XMLHttpRequest();
	46	if (httpAjax.overrideMimeType) {
	47	httpAjax.overrideMimeType('text/xml');
	48	}
	49	} else if(window.ActiveXObject) {
	50	try {
	51	httpAjax = new ActiveXObject("Msxml2.XMLHTTP");
	52	} catch(e) {
	53	try {
	54	httpAjax = new ActiveXObject("Microsoft.XMLHTTP");
	55	} catch(e) {
	56	alert("CouldnŽt build an AJAX instance.");
	57	return false;
	58	}
	59	}
	60	}
	61
	62	// Send request to Server and initiate callback.
	63	try {
	64	httpAjax.onreadystatechange = getPage;
	65	httpAjax.open('POST', servicename, true);
66	httpAjax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;");
67	httpAjax.send(serviceparam);
68	} catch(e) {
69	//alert("onreadystatechange didnŽt go well!");
70	return false;
71	}
72
73	return true;
74
75	}
76
77	/*--------------------------------------------------------------------------------
78	getPage
79
80	This is the AJAX callback function. It detects the invoking service and handles
81	the reply from each service accordingly.
82
83	----------------------------------------------------------------------------------*/
84	function getPage() {
85
86	if(httpAjax.readyState == 4) {
87
88	str = httpAjax.responseText;
89
90	if(ajaxQueue.length>0) {
91	var Aparam = ajaxQueue.pop();
92	var Aservice = ajaxQueue.pop();
93	ajaxServiceExec(Aservice, Aparam);
94	} else {
95	ajaxServiceRunning=false;
96	}
97
98	return true;
99	} else {
100	// If any other ready state than prepared, do nothing!
101	}
102	}
103
1 by Henrik G. First seed of Lenasys ... Needs to be Organized Further	104